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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../services.html" > Services< / a > < / li > < li > < a href = "index.html" > kinds< / a > < / li > < li > < a href = "index.html#4" > Chapter 4: Constructors< / a > < / li > < li > < b > Kind Constructors< / b > < / li > < / ul > < / div >
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< p class = "purpose" > The mechanism by which Inform records the characteristics of different kinds.< / p >
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< ul class = "toc" > < li > < a href = "4-kc2.html#SP9" > § 9. Creation< / a > < / li > < li > < a href = "4-kc2.html#SP10" > § 10. The noun< / a > < / li > < li > < a href = "4-kc2.html#SP12" > § 12. Transformations< / a > < / li > < li > < a href = "4-kc2.html#SP15" > § 15. For construction purposes< / a > < / li > < li > < a href = "4-kc2.html#SP16" > § 16. Questions about constructors< / a > < / li > < li > < a href = "4-kc2.html#SP18" > § 18. Cast and instance lists< / a > < / li > < li > < a href = "4-kc2.html#SP20" > § 20. Compatibility< / a > < / li > < / ul > < hr class = "tocbar" >
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< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > Constructors are divided into four groups:
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< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > PUNCTUATION_GRP< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > used in the construction of other kinds only< / span >
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< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > PROTOCOL_GRP< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 2< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > such as < / span > < span class = "extract" > < span class = "extract-syntax" > arithmetic value< / span > < / span >
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< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > BASE_CONSTRUCTOR_GRP< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 3< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > such as < / span > < span class = "extract" > < span class = "extract-syntax" > number< / span > < / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > PROPER_CONSTRUCTOR_GRP< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 4< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > with positive arity, such as "list of ..."< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > Besides all the properties of kinds used in this module, Inform also needs
to store further metadata in order to be able to make the extensive run-time
code needed to support all these kinds in actual programs. All of this means
that a < a href = "4-kc2.html#SP2" class = "internal" > kind_constructor< / a > object is a great big rag-bag of properties, some
set by commands in Neptune files, others set by calls from Inform.
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< / p >
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< p class = "commentary" > So, deep breath:
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< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > MAX_KIND_CONSTRUCTION_ARITY< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 2< / span >
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< / pre >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > typedef< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > noun< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > dt_tag< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > text of name< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > group< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > one of the four values above< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > A: how this came into being< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > is_incompletely_defined< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > newly defined and ambiguous as yet< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > where_defined_in_source_text< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > if so< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > B: constructing kinds< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > constructor_arity< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > 0 for base, 1 for unary, 2 for binary< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > variance< / span > < span class = "plain-syntax" > [< / span > < span class = "constant-syntax" > MAX_KIND_CONSTRUCTION_ARITY< / span > < span class = "plain-syntax" > ]; < / span > < span class = "comment-syntax" > must be < / span > < span class = "extract" > < span class = "extract-syntax" > COVARIANT< / span > < / span > < span class = "comment-syntax" > or < / span > < span class = "extract" > < span class = "extract-syntax" > CONTRAVARIANT< / span > < / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > tupling< / span > < span class = "plain-syntax" > [< / span > < span class = "constant-syntax" > MAX_KIND_CONSTRUCTION_ARITY< / span > < span class = "plain-syntax" > ]; < / span > < span class = "comment-syntax" > extent to which tupling is permitted< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > cached_kind< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > cached result of < / span > < span class = "extract" > < span class = "extract-syntax" > Kinds::base_construction< / span > < / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > C: compatibility with other kinds< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > superkind_set_at< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > where it says, e.g., "A rabbit is a kind of animal"< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_casting_rule< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > first_casting_rule< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > list of these< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_instance< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > first_instance_rule< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > list of these< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > D: how constant values of this kind are expressed< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > literal_pattern< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > ways_to_write_literals< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > list of ways to write this< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > table< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > named_values_created_with_table< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > alternatively...< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > next_free_value< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > to make distinguishable instances of this kind< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > constant_compilation_method< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > one of the < / span > < span class = "extract" > < span class = "extract-syntax" > *_CCM< / span > < / span > < span class = "comment-syntax" > values< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > E: knowledge about values of this kind< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > base_as_infs< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > inferences about properties< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > default_value< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > used for built-in types only< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > F: behaviour as a property as well< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > can_coincide_with_property< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > allowed to coincide in name with a property< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > coinciding_property< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > property of the same name, if any< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > G: performing arithmetic< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > comparison_routine< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > for instance, when sorting table or list entries< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > dimensional_rules< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > dim_rules< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > how arithmetic operations work here< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > unit_sequence< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > dimensional_form< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > dimensions of this kind< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > dimensional_form_fixed< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > whether they are derived< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > H: representing this kind at run-time< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > explicit_identifier< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > to become an Inter identifier< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > class_number< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > for classes of object< / span >
< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > ifdef< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CORE_MODULE< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind_constructor_compilation_data< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > endif< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > small_block_size< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > if stored as a block value, size in words of the SB< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > I: storing values at run-time< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > multiple_block< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > TRUE for flexible-size values stored on the heap< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > heap_size_estimate< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > typical number of bytes used< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > can_exchange< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > with external files and therefore other story files< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > distinguishing_routine< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > Inter routine to see if values distinguishable< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_comparison_schema< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > first_comparison_schema< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > list of these< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > loop_domain_schema< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > how to compile a loop over the instances< / span >
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< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > J: printing and parsing values at run-time< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > print_identifier< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > an Inter identifier used for compiling printing rules< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > ACTIONS_identifier< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > ditto but for ACTIONS testing command< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > command_grammar< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > understand_as_values< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > used when parsing such values< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > explicit_GPR_identifier< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > routine name, when not compiled automatically< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > recognition_routine< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > for recognising an explicit value as preposition< / span >
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< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > K: indexing and documentation< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > specification_text< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > text for pseudo-property< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > index_default_value< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > and its description in the Kinds index< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > index_maximum_value< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > ditto< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > index_minimum_value< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > ditto< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > index_priority< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > from 1 (highest) to < / span > < span class = "extract" > < span class = "extract-syntax" > LOWEST_INDEX_PRIORITY< / span > < / span > < span class = "comment-syntax" > (lowest)< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > linguistic< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > divide off as having linguistics content< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > indexed_grey_if_empty< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > shaded grey in the Kinds index< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > documentation_reference< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > documentation symbol, if any< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CLASS_DEFINITION< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > ;< / span >
< / pre >
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< ul class = "endnotetexts" > < li > The structure kind_constructor is accessed in 2/tlok, 2/dk, 2/uk, 4/mcr, 4/st, 4/kc and here.< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP3" class = "paragraph-anchor" > < / a > < b > § 3. < / b > A few of the settings connect pairs of kinds together, so structures like
the following are also needed.
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > typedef< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_casting_rule< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > cast_from_kind_unparsed< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > to the one which has the rule< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > cast_from_kind< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > to the one which has the rule< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_casting_rule< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > next_casting_rule< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > kind_constructor_casting_rule< / span > < span class = "plain-syntax" > ;< / span >
< / pre >
< ul class = "endnotetexts" > < li > The structure kind_constructor_casting_rule is accessed in 4/kc and here.< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP4" class = "paragraph-anchor" > < / a > < b > § 4. < / b > And this is the analogous structure for giving Inter schemas to compare
data of two different kinds:
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > typedef< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_comparison_schema< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > comparator_unparsed< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > comparator< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > comparison_schema< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_comparison_schema< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > next_comparison_schema< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > kind_constructor_comparison_schema< / span > < span class = "plain-syntax" > ;< / span >
< / pre >
< ul class = "endnotetexts" > < li > The structure kind_constructor_comparison_schema is accessed in 4/kc.< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP5" class = "paragraph-anchor" > < / a > < b > § 5. < / b > And this is the analogous structure for giving Inter schemas to compare
data of two different kinds:
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > typedef< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_instance< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > instance_of_this_unparsed< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > instance_of_this< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_instance< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > next_instance_rule< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > kind_constructor_instance< / span > < span class = "plain-syntax" > ;< / span >
< / pre >
< ul class = "endnotetexts" > < li > The structure kind_constructor_instance is accessed in 4/kc and here.< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP6" class = "paragraph-anchor" > < / a > < b > § 6. < / b > The "tupling" of an argument is the extent to which an argument can be
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allowed to hold a variable-length list of kinds, rather than a single one.
There aren't actually many possibilities.
< / p >
< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > NO_TUPLING< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > a single kind< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > ALLOW_NOTHING_TUPLING< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > a single kind, or "nothing"< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > ARBITRARY_TUPLING< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 10000< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > a list of kinds of any length< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP7" class = "paragraph-anchor" > < / a > < b > § 7. < / b > Constant compilation modes are:
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< / p >
< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > NONE_CCM< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > constant values of this kind cannot exist< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > LITERAL_CCM< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 2< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > a numerical annotation decides the value< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > NAMED_CONSTANT_CCM< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 3< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > an < / span > < span class = "extract" > < span class = "extract-syntax" > instance< / span > < / span > < span class = "comment-syntax" > annotation decides the value< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > SPECIAL_CCM< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 4< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > special code specific to the kind of value is needed< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP8" class = "paragraph-anchor" > < / a > < b > § 8. < / b > We keep track of the newest-created base kind of value (which isn't a kind
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of object) here:
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > latest_base_kind_of_value< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP9" class = "paragraph-anchor" > < / a > < b > § 9. Creation. < / b > Constructors come from two sources. Built-in ones like < span class = "extract" > < span class = "extract-syntax" > number< / span > < / span > or
< span class = "extract" > < span class = "extract-syntax" > list of K< / span > < / span > come from commands in < a href = "4-nf.html" class = "internal" > Neptune Files< / a > , while source-created
ones ("Air pressure is a kind of value") result in calls here from
< a href = "2-knd.html#SP20" class = "internal" > Kinds::new_base< / a > — which, as the name suggests, can only make
base kinds, not proper constructors.
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< / p >
< p class = "commentary" > Here < span class = "extract" > < span class = "extract-syntax" > super< / span > < / span > will be the super-constructor, the one which this will construct
subkinds of. In practice this will be < span class = "extract" > < span class = "extract-syntax" > NULL< / span > < / span > when < span class = "extract" > < span class = "extract-syntax" > CON_VALUE< / span > < / span > is created, and
then < span class = "extract" > < span class = "extract-syntax" > CON_VALUE< / span > < / span > for kinds like "number" or this one:
< / p >
< blockquote >
< p > Weight is a kind of value.< / p >
< / blockquote >
< p class = "commentary" > but will be the constructor for "door" for kinds like this one:
< / p >
< blockquote >
< p > Portal is a kind of door.< / p >
< / blockquote >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > KindConstructors::new< / span > < button class = "popup" onclick = "togglePopup('usagePopup1')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup1" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::new< / span > < / span > :< br / > Kinds - < a href = "2-knd.html#SP20" > § 20< / a > < br / > Neptune Syntax - < a href = "4-ns.html#SP5_2" > § 5.2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > super< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > source_name< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > initialisation_macro< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > group< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > pC< / span > < span class = "plain-syntax" > = < / span > < a href = "2-fk.html#SP11" class = "function-link" > < span class = "function-syntax" > FamiliarKinds::known_con< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > source_name< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pC< / span > < span class = "plain-syntax" > ) *< / span > < span class = "identifier-syntax" > pC< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > copied< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > super< / span > < span class = "plain-syntax" > == < / span > < a href = "2-knd.html#SP11" class = "function-link" > < span class = "function-syntax" > Kinds::get_construct< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K_value< / span > < span class = "plain-syntax" > )) < / span > < span class = "named-paragraph-container code-font" > < a href = "4-kc2.html#SP9_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Fill in a new constructor< / span > < span class = "named-paragraph-number" > 9.1< / span > < / a > < / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > { < / span > < span class = "named-paragraph-container code-font" > < a href = "4-kc2.html#SP9_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Copy the new constructor from its superconstructor< / span > < span class = "named-paragraph-number" > 9.2< / span > < / a > < / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > copied< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ; }< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > group< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > group< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > explicit_identifier< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::duplicate< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > source_name< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > ifdef< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CORE_MODULE< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > compilation_data< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > RTKindConstructors::new_compilation_data< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > KindSubjects::new< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > endif< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > where_defined_in_source_text< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > current_sentence< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > pK< / span > < span class = "plain-syntax" > = < / span > < a href = "2-fk.html#SP11" class = "function-link" > < span class = "function-syntax" > FamiliarKinds::known_kind< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > source_name< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pK< / span > < span class = "plain-syntax" > ) *< / span > < span class = "identifier-syntax" > pK< / span > < span class = "plain-syntax" > = < / span > < a href = "2-knd.html#SP6" class = "function-link" > < span class = "function-syntax" > Kinds::base_construction< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP9_1" class = "paragraph-anchor" > < / a > < b > § 9.1. < / b > If our new constructor is wholly new, and isn't a subkind of something else,
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we need to initialise the entire data structure; but note that, having done so,
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we apply any defaults set in Neptune files.
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< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > default< / span > < span class = "constant-syntax" > LOWEST_INDEX_PRIORITY< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 100< / span >
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< / pre >
< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Fill in a new constructor< / span > < span class = "named-paragraph-number" > 9.1< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dt_tag< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > group< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > which is invalid, so the interpreter needs to set it< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > A: how this came into being< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > is_incompletely_defined< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > where_defined_in_source_text< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > but will be filled in imminently< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > B: constructing kinds< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > constructor_arity< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > by default a base constructor< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > =0; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > MAX_KIND_CONSTRUCTION_ARITY< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ++) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > variance< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ] = < / span > < span class = "constant-syntax" > COVARIANT< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > tupling< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ] = < / span > < span class = "constant-syntax" > NO_TUPLING< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > cached_kind< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > C: compatibility with other kinds< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > superkind_set_at< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > first_casting_rule< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > first_instance_rule< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > D: how constant values of this kind are expressed< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > ways_to_write_literals< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > named_values_created_with_table< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next_free_value< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > constant_compilation_method< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > NONE_CCM< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > E: knowledge about values of this kind< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > base_as_infs< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > but will be filled in imminently, in almost all cases< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > default_value< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::new< / span > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > F: behaviour as a property as well< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > can_coincide_with_property< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > coinciding_property< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > G: performing arithmetic< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > comparison_routine< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::new< / span > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > comparison_routine< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "UnsignedCompare"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > CON_KIND_VARIABLE< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > CON_INTERMEDIATE< / span > < span class = "plain-syntax" > ) ||< / span >
< span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > Str::eq_wide_string< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > source_name< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "string-syntax" > "NUMBER_TY"< / span > < span class = "plain-syntax" > )) ||< / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Str::eq_wide_string< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > source_name< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "string-syntax" > "REAL_NUMBER_TY"< / span > < span class = "plain-syntax" > ))))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dimensional_form< / span > < span class = "plain-syntax" > =< / span >
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< span class = "plain-syntax" > < / span > < a href = "3-dmn.html#SP19" class = "function-link" > < span class = "function-syntax" > Kinds::Dimensions::fundamental_unit_sequence< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dimensional_form< / span > < span class = "plain-syntax" > =< / span >
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< span class = "plain-syntax" > < / span > < a href = "3-dmn.html#SP19" class = "function-link" > < span class = "function-syntax" > Kinds::Dimensions::fundamental_unit_sequence< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "2-knd.html#SP6" class = "function-link" > < span class = "function-syntax" > Kinds::base_construction< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dimensional_form_fixed< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < a href = "3-dmn.html#SP12" class = "function-link" > < span class = "function-syntax" > Kinds::Dimensions::dim_initialise< / span > < / a > < span class = "plain-syntax" > (& (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dim_rules< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > H: representing this kind at run-time< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > explicit_identifier< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::new< / span > < span class = "plain-syntax" > ();< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > class_number< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > I: storing values at run-time< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > multiple_block< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > small_block_size< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > heap_size_estimate< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > can_exchange< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > first_comparison_schema< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > distinguishing_routine< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > loop_domain_schema< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > J: printing and parsing values at run-time< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > print_identifier< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::new< / span > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > ACTIONS_identifier< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::new< / span > < span class = "plain-syntax" > ();< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > understand_as_values< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > explicit_GPR_identifier< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > recognition_routine< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > K: indexing and documentation< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > specification_text< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > index_default_value< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "--"< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > index_maximum_value< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "--"< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > index_minimum_value< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "--"< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > index_priority< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > LOWEST_INDEX_PRIORITY< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > group< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > PUNCTUATION_GRP< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > group< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > PROTOCOL_GRP< / span > < span class = "plain-syntax" > ))< / span >
2020-08-19 02:56:02 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > index_priority< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > linguistic< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > indexed_grey_if_empty< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > documentation_reference< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_macro_definition< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > set_defaults< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > switch< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > group< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PUNCTUATION_GRP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > set_defaults< / span > < span class = "plain-syntax" > = < / span > < a href = "4-mcr.html#SP1" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::parse_name< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "#PUNCTUATION"< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PROTOCOL_GRP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > set_defaults< / span > < span class = "plain-syntax" > = < / span > < a href = "4-mcr.html#SP1" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::parse_name< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "#PROTOCOL"< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BASE_CONSTRUCTOR_GRP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > set_defaults< / span > < span class = "plain-syntax" > = < / span > < a href = "4-mcr.html#SP1" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::parse_name< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "#BASE"< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PROPER_CONSTRUCTOR_GRP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > set_defaults< / span > < span class = "plain-syntax" > = < / span > < a href = "4-mcr.html#SP1" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::parse_name< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "#CONSTRUCTOR"< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > set_defaults< / span > < span class = "plain-syntax" > ) < / span > < a href = "4-mcr.html#SP2" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::play_back< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > set_defaults< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Str::len< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > initialisation_macro< / span > < span class = "plain-syntax" > ) > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-mcr.html#SP2" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::play_back< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "4-mcr.html#SP1" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::parse_name< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > initialisation_macro< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "4-kc2.html#SP9" > § 9< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP9_2" class = "paragraph-anchor" > < / a > < b > § 9.2. < / b > However, if we create our constructor as a subkind, like so:
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< / p >
< blockquote >
< p > A turtle is a kind of animal.< / p >
< / blockquote >
< p class = "commentary" > then we copy the entire "animal" constructor to initialise the "turtle" one.
< / p >
< p class = "commentary" > Note that the weak ID number is one of the things copied; this is deliberate.
It means that all kinds of object share the same weak ID as "object".
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Copy the new constructor from its superconstructor< / span > < span class = "named-paragraph-number" > 9.2< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > allocation_id< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > N< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > next_structure< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > prev_structure< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > = *< / span > < span class = "identifier-syntax" > super< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > allocation_id< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > next_structure< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > N< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > prev_structure< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > cached_kind< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > otherwise the superkind's cache is used by mistake< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > explicit_identifier< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::new< / span > < span class = "plain-syntax" > (); < / span > < span class = "comment-syntax" > otherwise this will be called < / span > < span class = "extract" > < span class = "extract-syntax" > OBJECT_TY< / span > < / span > < span class = "comment-syntax" > by mistake< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "4-kc2.html#SP9" > § 9< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP10" class = "paragraph-anchor" > < / a > < b > § 10. The noun. < / b > It's a requirement that the following be called soon after the creation
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of the constructor:
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::attach_noun< / span > < button class = "popup" onclick = "togglePopup('usagePopup2')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup2" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::attach_noun< / span > < / span > :< br / > Kinds - < a href = "2-knd.html#SP20_1" > § 20.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > noun< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > nt< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > nt< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "bad noun attachment"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dt_tag< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > nt< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::get_name< / span > < button class = "popup" onclick = "togglePopup('usagePopup3')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup3" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::get_name< / span > < / span > :< br / > Describing Kinds - < a href = "2-dk.html#SP14" > § 14< / a > < br / > Using Kinds - < a href = "2-uk.html#SP1" > § 1< / a > < br / > Star Templates - < a href = "4-st.html#SP6" > § 6< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > plural_form< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dt_tag< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > noun< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > nt< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dt_tag< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > nt< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Nouns::nominative< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > nt< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > plural_form< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::get_name_in_play< / span > < button class = "popup" onclick = "togglePopup('usagePopup4')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup4" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::get_name_in_play< / span > < / span > :< br / > Using Kinds - < a href = "2-uk.html#SP1" > § 1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > plural_form< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NATURAL_LANGUAGE_WORDS_TYPE< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > nl< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dt_tag< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > noun< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > nt< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dt_tag< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > nt< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Nouns::nominative_in_language< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > nt< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > plural_form< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > nl< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "identifier-syntax" > noun< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > KindConstructors::get_noun< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > dt_tag< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > KindConstructors::name_in_template_code< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > explicit_identifier< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP11" class = "paragraph-anchor" > < / a > < b > § 11. < / b > We also need to parse this, occasionally (if we needed this more than a
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small and bounded number of times we'd want a faster method, but we don't):
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > KindConstructors::parse< / span > < button class = "popup" onclick = "togglePopup('usagePopup5')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup5" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::parse< / span > < / span > :< br / > < a href = "4-kc2.html#SP18" > § 18< / a > , < a href = "4-kc2.html#SP19" > § 19< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > sn< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Str::eq< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > explicit_identifier< / span > < span class = "plain-syntax" > ))< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP12" class = "paragraph-anchor" > < / a > < b > § 12. Transformations. < / b > Conversions of an existing constructor to make it a unit or enumeration also
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require running macros in the kind interpreter:
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::convert_to_unit< / span > < button class = "popup" onclick = "togglePopup('usagePopup6')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup6" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::convert_to_unit< / span > < / span > :< br / > Using Kinds - < a href = "2-uk.html#SP8" > § 8< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > is_incompletely_defined< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-mcr.html#SP2" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::play_back< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "4-mcr.html#SP1" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::parse_name< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "#UNIT"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP16" class = "function-link" > < span class = "function-syntax" > KindConstructors::is_arithmetic< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > i.e., if it succeeded< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::convert_to_enumeration< / span > < button class = "popup" onclick = "togglePopup('usagePopup7')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup7" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::convert_to_enumeration< / span > < / span > :< br / > Using Kinds - < a href = "2-uk.html#SP9" > § 9< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > is_incompletely_defined< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-mcr.html#SP2" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::play_back< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "4-mcr.html#SP1" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::parse_name< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "#ENUMERATION"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > linguistic< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-mcr.html#SP2" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::play_back< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "4-mcr.html#SP1" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::parse_name< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "#LINGUISTIC"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP16" class = "function-link" > < span class = "function-syntax" > KindConstructors::is_an_enumeration< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > i.e., if it succeeded< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP13" class = "paragraph-anchor" > < / a > < b > § 13. < / b > And similarly:
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::convert_to_real< / span > < button class = "popup" onclick = "togglePopup('usagePopup8')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup8" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::convert_to_real< / span > < / span > :< br / > Using Kinds - < a href = "2-uk.html#SP10" > § 10< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-mcr.html#SP2" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::play_back< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "4-mcr.html#SP1" class = "function-link" > < span class = "function-syntax" > NeptuneMacros::parse_name< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "#REAL"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP14" class = "paragraph-anchor" > < / a > < b > § 14. < / b > A few base kinds are marked as "linguistic", which simply enables us to fence
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them tidily off in the index.
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::mark_as_linguistic< / span > < button class = "popup" onclick = "togglePopup('usagePopup9')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup9" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::mark_as_linguistic< / span > < / span > :< br / > Familiar Kinds - < a href = "2-fk.html#SP13" > § 13< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > linguistic< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP15" class = "paragraph-anchor" > < / a > < b > § 15. For construction purposes. < / b > < / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > kind< / span > < span class = "plain-syntax" > **< / span > < span class = "function-syntax" > KindConstructors::cache_location< / span > < button class = "popup" onclick = "togglePopup('usagePopup10')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup10" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::cache_location< / span > < / span > :< br / > Kinds - < a href = "2-knd.html#SP6" > § 6< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > & (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > cached_kind< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::arity< / span > < button class = "popup" onclick = "togglePopup('usagePopup11')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup11" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::arity< / span > < / span > :< br / > Kinds - < a href = "2-knd.html#SP6" > § 6< / a > , < a href = "2-knd.html#SP6_3" > § 6.3< / a > , < a href = "2-knd.html#SP13" > § 13< / a > < br / > The Lattice of Kinds - < a href = "2-tlok.html#SP7" > § 7< / a > , < a href = "2-tlok.html#SP13_4" > § 13.4< / a > < br / > Describing Kinds - < a href = "2-dk.html#SP12" > § 12< / a > , < a href = "2-dk.html#SP12_1" > § 12.1< / a > , < a href = "2-dk.html#SP24_3" > § 24.3< / a > , < a href = "2-dk.html#SP24_3_2" > § 24.3.2< / a > < br / > Using Kinds - < a href = "2-uk.html#SP4" > § 4< / a > < br / > Star Templates - < a href = "4-st.html#SP6" > § 6< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > group< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > PROPER_CONSTRUCTOR_GRP< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > constructor_arity< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::tupling< / span > < button class = "popup" onclick = "togglePopup('usagePopup12')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup12" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::tupling< / span > < / span > :< br / > Describing Kinds - < a href = "2-dk.html#SP12_1" > § 12.1< / a > , < a href = "2-dk.html#SP25" > § 25< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > b< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > tupling< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > b< / span > < span class = "plain-syntax" > ];< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::variance< / span > < button class = "popup" onclick = "togglePopup('usagePopup13')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup13" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::variance< / span > < / span > :< br / > Kinds - < a href = "2-knd.html#SP17" > § 17< / a > < br / > The Lattice of Kinds - < a href = "2-tlok.html#SP13_4" > § 13.4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > b< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > variance< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > b< / span > < span class = "plain-syntax" > ];< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP16" class = "paragraph-anchor" > < / a > < b > § 16. Questions about constructors. < / b > The rest of Inform is not encouraged to poke at constructors directly; it
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ought to ask questions about kinds instead (see "Using Kinds"). However:
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::is_definite< / span > < button class = "popup" onclick = "togglePopup('usagePopup14')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup14" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::is_definite< / span > < / span > :< br / > < a href = "4-kc2.html#SP21" > § 21< / a > < br / > Using Kinds - < a href = "2-uk.html#SP4" > § 4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > group< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > BASE_CONSTRUCTOR_GRP< / span > < span class = "plain-syntax" > ) ||< / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > group< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > PROPER_CONSTRUCTOR_GRP< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > CON_VOID< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > CON_NIL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > CON_INTERMEDIATE< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::offers_I6_GPR< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < a href = "4-kc2.html#SP16" class = "function-link" > < span class = "function-syntax" > KindConstructors::is_definite< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP20" class = "function-link" > < span class = "function-syntax" > KindConstructors::compatible< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-knd.html#SP11" class = "function-link" > < span class = "function-syntax" > Kinds::get_construct< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K_understandable_value< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ))) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::is_arithmetic< / span > < button class = "popup" onclick = "togglePopup('usagePopup15')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup15" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::is_arithmetic< / span > < / span > :< br / > < a href = "4-kc2.html#SP12" > § 12< / a > < br / > Using Kinds - < a href = "2-uk.html#SP17" > § 17< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < a href = "4-kc2.html#SP16" class = "function-link" > < span class = "function-syntax" > KindConstructors::is_definite< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP20" class = "function-link" > < span class = "function-syntax" > KindConstructors::compatible< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-knd.html#SP11" class = "function-link" > < span class = "function-syntax" > Kinds::get_construct< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K_arithmetic_value< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ))) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::is_arithmetic_and_real< / span > < button class = "popup" onclick = "togglePopup('usagePopup16')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup16" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::is_arithmetic_and_real< / span > < / span > :< br / > < a href = "4-kc2.html#SP17" > § 17< / a > < br / > Floating-Point Values - < a href = "3-fv.html#SP2" > § 2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < a href = "4-kc2.html#SP16" class = "function-link" > < span class = "function-syntax" > KindConstructors::is_definite< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP20" class = "function-link" > < span class = "function-syntax" > KindConstructors::compatible< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-knd.html#SP11" class = "function-link" > < span class = "function-syntax" > Kinds::get_construct< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K_real_arithmetic_value< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ))) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::is_an_enumeration< / span > < button class = "popup" onclick = "togglePopup('usagePopup17')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup17" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::is_an_enumeration< / span > < / span > :< br / > < a href = "4-kc2.html#SP12" > § 12< / a > < br / > Using Kinds - < a href = "2-uk.html#SP7" > § 7< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < a href = "4-kc2.html#SP16" class = "function-link" > < span class = "function-syntax" > KindConstructors::is_definite< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP20" class = "function-link" > < span class = "function-syntax" > KindConstructors::compatible< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-knd.html#SP11" class = "function-link" > < span class = "function-syntax" > Kinds::get_construct< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K_enumerated_value< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ))) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP17" class = "paragraph-anchor" > < / a > < b > § 17. < / b > All floating-point kinds use a common comparison function: the one for
< span class = "extract" > < span class = "extract-syntax" > K_real_number< / span > < / span > .
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::uses_signed_comparisons< / span > < button class = "popup" onclick = "togglePopup('usagePopup18')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup18" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::uses_signed_comparisons< / span > < / span > :< br / > Using Kinds - < a href = "2-uk.html#SP16" > § 16< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > kc< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > kc< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Str::eq_wide_string< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > kc< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > comparison_routine< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "string-syntax" > "signed"< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > KindConstructors::get_comparison_fn_identifier< / span > < button class = "popup" onclick = "togglePopup('usagePopup19')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup19" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::get_comparison_fn_identifier< / span > < / span > :< br / > Using Kinds - < a href = "2-uk.html#SP16" > § 16< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > kc< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > kc< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < a href = "4-kc2.html#SP16" class = "function-link" > < span class = "function-syntax" > KindConstructors::is_arithmetic_and_real< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > kc< / span > < span class = "plain-syntax" > )) & & (< / span > < span class = "identifier-syntax" > K_real_number< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > K_real_number< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > construct< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > comparison_routine< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Str::eq_wide_string< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > kc< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > comparison_routine< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > L< / span > < span class = "string-syntax" > "signed"< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kc< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > comparison_routine< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
< p class = "commentary firstcommentary" > < a id = "SP18" class = "paragraph-anchor" > < / a > < b > § 18. Cast and instance lists. < / b > Each constructor has a list of other constructors (all of the < span class = "extract" > < span class = "extract-syntax" > PROTOCOL_GRP< / span > < / span >
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group) which it's an instance of: value, word value, arithmetic value, and so on.
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
2022-05-16 00:38:57 +03:00
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::find_cast< / span > < button class = "popup" onclick = "togglePopup('usagePopup20')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup20" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::find_cast< / span > < / span > :< br / > < a href = "4-kc2.html#SP20" > § 20< / a > < br / > The Lattice of Kinds - < a href = "2-tlok.html#SP13_6" > § 13.6< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_casting_rule< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > dtcr< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dtcr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > first_casting_rule< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > dtcr< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > dtcr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > dtcr< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next_casting_rule< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Str::len< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dtcr< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > cast_from_kind_unparsed< / span > < span class = "plain-syntax" > ) > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > dtcr< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > cast_from_kind< / span > < span class = "plain-syntax" > =< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-kc2.html#SP11" class = "function-link" > < span class = "function-syntax" > KindConstructors::parse< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dtcr< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > cast_from_kind_unparsed< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Str::clear< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dtcr< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > cast_from_kind_unparsed< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > dtcr< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > cast_from_kind< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP19" class = "paragraph-anchor" > < / a > < b > § 19. < / b > Each constructor has a list of other constructors (all of the < span class = "extract" > < span class = "extract-syntax" > BASE_CONSTRUCTOR_GRP< / span > < / span >
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group or < span class = "extract" > < span class = "extract-syntax" > PROPER_CONSTRUCTOR_GRP< / span > < / span > ) which it can cast to.
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::find_instance< / span > < button class = "popup" onclick = "togglePopup('usagePopup21')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup21" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::find_instance< / span > < / span > :< br / > < a href = "4-kc2.html#SP20" > § 20< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor_instance< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > first_instance_rule< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next_instance_rule< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Str::len< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > instance_of_this_unparsed< / span > < span class = "plain-syntax" > ) > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > instance_of_this< / span > < span class = "plain-syntax" > =< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-kc2.html#SP11" class = "function-link" > < span class = "function-syntax" > KindConstructors::parse< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > instance_of_this_unparsed< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Str::clear< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > instance_of_this_unparsed< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > instance_of_this< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP19" class = "function-link" > < span class = "function-syntax" > KindConstructors::find_instance< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dti< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > instance_of_this< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP20" class = "paragraph-anchor" > < / a > < b > § 20. Compatibility. < / b > The following tests if < span class = "extract" > < span class = "extract-syntax" > from< / span > < / span > is compatible with < span class = "extract" > < span class = "extract-syntax" > to< / span > < / span > .
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::compatible< / span > < button class = "popup" onclick = "togglePopup('usagePopup22')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup22" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::compatible< / span > < / span > :< br / > < a href = "4-kc2.html#SP16" > § 16< / a > , < a href = "4-kc2.html#SP21" > § 21< / a > < br / > The Lattice of Kinds - < a href = "2-tlok.html#SP6" > § 6< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > allow_casts< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > allow_casts< / span > < span class = "plain-syntax" > ) & & (< / span > < a href = "4-kc2.html#SP18" class = "function-link" > < span class = "function-syntax" > KindConstructors::find_cast< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > ))) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP19" class = "function-link" > < span class = "function-syntax" > KindConstructors::find_instance< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP21" class = "paragraph-anchor" > < / a > < b > § 21. < / b > And more elaborately:
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::uses_block_values< / span > < button class = "popup" onclick = "togglePopup('usagePopup23')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup23" > Usage of < span class = "code-font" > < span class = "function-syntax" > KindConstructors::uses_block_values< / span > < / span > :< br / > Using Kinds - < a href = "2-uk.html#SP20" > § 20< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < a href = "4-kc2.html#SP16" class = "function-link" > < span class = "function-syntax" > KindConstructors::is_definite< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP20" class = "function-link" > < span class = "function-syntax" > KindConstructors::compatible< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > con< / span > < span class = "plain-syntax" > , < / span > < a href = "2-knd.html#SP11" class = "function-link" > < span class = "function-syntax" > Kinds::get_construct< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K_pointer_value< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > )))< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > KindConstructors::allow_word_as_pointer< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > left< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > kind_constructor< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > right< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP21" class = "function-link" > < span class = "function-syntax" > KindConstructors::uses_block_values< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > left< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP21" class = "function-link" > < span class = "function-syntax" > KindConstructors::uses_block_values< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > right< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-kc2.html#SP20" class = "function-link" > < span class = "function-syntax" > KindConstructors::compatible< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > right< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > left< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
< nav role = "progress" > < div class = "progresscontainer" >
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< ul class = "progressbar" > < li class = "progressprev" > < a href = "4-kc.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "P-wtmd.html" > P< / a > < / li > < li class = "progresschapter" > < a href = "1-km.html" > 1< / a > < / li > < li class = "progresschapter" > < a href = "2-knd.html" > 2< / a > < / li > < li class = "progresschapter" > < a href = "3-dmn.html" > 3< / a > < / li > < li class = "progresscurrentchapter" > 4< / li > < li class = "progresssection" > < a href = "4-abgtn.html" > abgtn< / a > < / li > < li class = "progresssection" > < a href = "4-nf.html" > nf< / a > < / li > < li class = "progresssection" > < a href = "4-ns.html" > ns< / a > < / li > < li class = "progresssection" > < a href = "4-mcr.html" > mcr< / a > < / li > < li class = "progresssection" > < a href = "4-st.html" > st< / a > < / li > < li class = "progresssection" > < a href = "4-kc.html" > kc< / a > < / li > < li class = "progresscurrent" > kc2< / li > < li class = "progressnextoff" > ❯ < / li > < / ul > < / div >
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< / nav > <!-- End of weave -->
< / main >
< / body >
< / html >