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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../compiler.html" > Inform7< / a > < / li > < li > < a href = "index.html" > runtime< / a > < / li > < li > < a href = "index.html#5" > Chapter 5: Provision Submodules< / a > < / li > < li > < b > Properties< / b > < / li > < / ul > < / div >
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< p class = "purpose" > To compile the properties submodule for a compilation unit, which contains _property packages.< / p >
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< ul class = "toc" > < li > < a href = "5-prp.html#SP1" > § 1. Compilation data< / a > < / li > < li > < a href = "5-prp.html#SP7" > § 7. Compilation< / a > < / li > < li > < a href = "5-prp.html#SP8" > § 8. Recommendations to be attributes< / a > < / li > < li > < a href = "5-prp.html#SP10" > § 10. Non-typesafe 0< / a > < / li > < li > < a href = "5-prp.html#SP11" > § 11. Schemas< / a > < / li > < / ul > < hr class = "tocbar" >
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< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. Compilation data. < / b > Each < span class = "extract" > < span class = "extract-syntax" > property< / span > < / span > object contains this data, though in the case of a pair of
negated either-or properties, only the un-negated case has a meaningful
set of compilation data.
< / p >
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< 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" > property_compilation_data< / 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" > package_request< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prop_package< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > where to find:< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prop_iname< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > the identifier we would like to use at run-time for this 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" > translation< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > for the iname< / 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" > do_not_compile< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > for e.g. the "specification" pseudo-property< / 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" > translated< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > has this been given an explicit translation?< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > implemented_as_attribute< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > is this an Inter attribute at run-time?< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > store_in_negation< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > this is the dummy half of an either/or pair< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > visited_on_traverse< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > for temporary use when compiling objects< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > use_non_typesafe_0< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > as a default to mean "not set" at run-time< / 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" > include_in_index< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > is this property shown in the indexes?< / span >
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< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > property_compilation_data< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::initialise_pcd< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > package_request< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > pkg< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > iname< / 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 = "identifier-syntax" > translation< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > prop_package< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > pkg< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > prop_iname< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translation< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::duplicate< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > translation< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > do_not_compile< / 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 = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translated< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > store_in_negation< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > implemented_as_attribute< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NOT_APPLICABLE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > visited_on_traverse< / span > < span class = "plain-syntax" > = -1;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > use_non_typesafe_0< / 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 = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > include_in_index< / 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 >
< / pre >
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< ul class = "endnotetexts" > < li > The structure property_compilation_data is accessed in 5/act2, 6/pp, 6/pv and here.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > And these are created on demand, though some properties come with a given
package already supplied:
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "identifier-syntax" > package_request< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > RTProperties::package< / 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" > RTProperties::package< / span > < / span > :< br / > < a href = "5-prp.html#SP7" > § 7< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / 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" > "tried to find package for null property"< / 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" > Properties::is_either_or< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) & & (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > store_in_negation< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::package< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > EitherOrProperties::get_negation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > prop_package< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > prop_package< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < a href = "2-hrr.html#SP19" class = "function-link" > < span class = "function-syntax" > Hierarchy::local_package_to< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > PROPERTIES_HAP< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > where_created< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "identifier-syntax" > prop_package< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "identifier-syntax" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > RTProperties::iname< / 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" > RTProperties::iname< / span > < / span > :< br / > < a href = "5-prp.html#SP5" > § 5< / a > , < a href = "5-prp.html#SP7" > § 7< / a > , < a href = "5-prp.html#SP7_4" > § 7.4< / a > , < a href = "5-prp.html#SP11" > § 11< / a > , < a href = "5-prp.html#SP12_1" > § 12.1< / a > , < a href = "5-prp.html#SP12_2" > § 12.2< / a > < br / > Emit - < a href = "2-emt.html#SP17" > § 17< / a > , < a href = "2-emt.html#SP18" > § 18< / a > < br / > Emit Code - < a href = "2-ec.html#SP8" > § 8< / a > < br / > Instance Counting - < a href = "2-ic.html#SP4" > § 4< / a > < br / > Showme Command - < a href = "2-sc.html#SP6_1" > § 6.1< / a > , < a href = "2-sc.html#SP6_1_1" > § 6.1.1< / a > , < a href = "2-sc.html#SP6_1_1_1" > § 6.1.1.1< / a > , < a href = "2-sc.html#SP6_2" > § 6.2< / a > < br / > Scene Instances - < a href = "5-si.html#SP6_1" > § 6.1< / a > < br / > Relations - < a href = "5-rlt.html#SP7_3_3" > § 7.3.3< / a > < br / > Command Grammar Tokens - < a href = "7-cgt.html#SP1_2_4" > § 1.2.4< / a > , < a href = "7-cgt.html#SP1_2_6" > § 1.2.6< / a > , < a href = "7-cgt.html#SP1_2_7" > § 1.2.7< / a > , < a href = "7-cgt.html#SP1_2_10_2_1" > § 1.2.10.2.1< / a > , < a href = "7-cgt.html#SP1_2_10_2_2" > § 1.2.10.2.2< / a > < br / > Parse Name Properties - < a href = "7-pnp.html#SP4_3_1" > § 4.3.1< / a > , < a href = "7-pnp.html#SP6_2" > § 6.2< / a > , < a href = "7-pnp.html#SP8" > § 8< / a > , < a href = "7-pnp.html#SP10" > § 10< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / 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" > "tried to find iname for null property"< / 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" > Properties::is_either_or< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) & & (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > store_in_negation< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > EitherOrProperties::get_negation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ));< / span >
2021-05-11 11:19:15 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > prop_iname< / 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" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > memo< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > name< / 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" > Wordings::empty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > memo< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Str::len< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translation< / 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" > memo< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Feeds::feed_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translation< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > prop_iname< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < a href = "2-hrr.html#SP13" class = "function-link" > < span class = "function-syntax" > Hierarchy::make_iname_with_memo< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > PROPERTY_HL< / span > < span class = "plain-syntax" > ,< / span >
2021-05-11 11:19:15 +03:00
< span class = "plain-syntax" > < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::package< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > memo< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translation< / 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" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_THROUGH_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pos< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translation< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wchar_t< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Str::get< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pos< / 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" > isalpha< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > )) || (< / span > < span class = "identifier-syntax" > Characters::isdigit< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > )) || (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > == < / span > < span class = "character-syntax" > '_'< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PUT_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > , (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PUT_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > , < / span > < span class = "character-syntax" > '_'< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Str::truncate< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 31< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Produce::change_translation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > prop_iname< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translated< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > }< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "identifier-syntax" > prop_iname< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
< p class = "commentary firstcommentary" > < a id = "SP3" class = "paragraph-anchor" > < / a > < b > § 3. < / b > Only a very few pseudo-properties go uncompiled: see < a href = "../knowledge-module/3-prp.html" class = "internal" > Properties (in knowledge)< / a > .
< / p >
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2021-05-11 01:09:06 +03:00
< 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" > RTProperties::do_not_compile< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > do_not_compile< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
2021-05-24 01:12:40 +03:00
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::can_be_compiled< / 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" > RTProperties::can_be_compiled< / span > < / span > :< br / > Showme Command - < a href = "2-sc.html#SP6" > § 6< / a > < br / > Property Values - < a href = "6-pv.html#SP2_2_1" > § 2.2.1< / a > , < a href = "6-pv.html#SP4" > § 4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > do_not_compile< / 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" > return< / 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 = "SP4" class = "paragraph-anchor" > < / a > < b > § 4. < / b > When we have a pair of either-or antonyms, as in "A person can be cheery or moody",
we should store the state as either the < span class = "extract" > < span class = "extract-syntax" > cheery< / span > < / span > or the < span class = "extract" > < span class = "extract-syntax" > moody< / span > < / span > property. Clearly
either could equivalently be used: if a person is indeed in good spirits, we
could represent this either by having a < span class = "extract" > < span class = "extract-syntax" > cheery< / span > < / span > property at runtime and storing
< span class = "extract" > < span class = "extract-syntax" > true< / span > < / span > in it, or by having a < span class = "extract" > < span class = "extract-syntax" > moody< / span > < / span > one and storing < span class = "extract" > < span class = "extract-syntax" > false< / span > < / span > in that.
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< / p >
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< p class = "commentary" > Calling the function < a href = "5-prp.html#SP4" class = "internal" > RTProperties::store_in_negation< / a > establishes that the
given property is the one we don't use. That is, if you want to use < span class = "extract" > < span class = "extract-syntax" > cheery< / span > < / span > ,
call this function on < span class = "extract" > < span class = "extract-syntax" > moody< / span > < / span > .
< / p >
< p class = "commentary" > It may seem not to matter, but in fact we sometimes do need to have things one
particular way around in order to make Inform 7 source text play nicely with
already-compiled properties in kits. If the < span class = "extract" > < span class = "extract-syntax" > moody< / span > < / span > property is defined by a
kit, we'll have to use that one.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
2021-06-22 22:37:53 +03:00
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::stored_in_negation< / 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" > RTProperties::stored_in_negation< / span > < / span > :< br / > < a href = "5-prp.html#SP9" > § 9< / a > , < a href = "5-prp.html#SP12_1" > § 12.1< / a > , < a href = "5-prp.html#SP12_2" > § 12.2< / a > < br / > Emit Code - < a href = "2-ec.html#SP8" > § 8< / a > < br / > Showme Command - < a href = "2-sc.html#SP6_2" > § 6.2< / a > < br / > Property Values - < a href = "6-pv.html#SP2_2_1" > § 2.2.1< / a > < br / > Parse Name Properties - < a href = "7-pnp.html#SP7" > § 7< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > either_or_data< / 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" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "non-EO property"< / span > < span class = "plain-syntax" > );< / span >
2021-02-18 01:32:04 +02:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "identifier-syntax" > store_in_negation< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::store_in_negation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
2021-02-18 12:26:57 +02:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > either_or_data< / 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" > "non-EO property"< / span > < span class = "plain-syntax" > );< / span >
2021-05-11 01:09:06 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > neg< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EitherOrProperties::get_negation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / 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" > neg< / 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" > "singleton EO cannot store in negation"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > store_in_negation< / 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" > neg< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > store_in_negation< / 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 >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP5" class = "paragraph-anchor" > < / a > < b > § 5. < / b > The translation of a property is stored in the translation of its iname:
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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" > RTProperties::set_translation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > = < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Produce::change_translation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translated< / 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 = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::set_translation_and_make_available< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > = < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Produce::change_translation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-hrr.html#SP17" class = "function-link" > < span class = "function-syntax" > Hierarchy::make_available< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translated< / 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 = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::has_been_translated< / 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" > RTProperties::has_been_translated< / span > < / span > :< br / > < a href = "5-prp.html#SP9_2" > § 9.2< / a > < br / > Property Values - < a href = "6-pv.html#SP4" > § 4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "identifier-syntax" > translated< / 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" > RTProperties::current_translation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translated< / 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" > 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" > Produce::get_translation< / span > < span class = "plain-syntax" > (< / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / 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 = "SP6" class = "paragraph-anchor" > < / a > < b > § 6. < / b > A property might be missed out of the Index pages for clarity's sake:
< / 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" > RTProperties::is_shown_in_index< / 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" > RTProperties::is_shown_in_index< / span > < / span > :< br / > Showme Command - < a href = "2-sc.html#SP6" > § 6< / a > < br / > Index Extensions - < a href = "2-ie.html#SP1_9" > § 1.9< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "identifier-syntax" > include_in_index< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::dont_show_in_index< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > include_in_index< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
< p class = "commentary firstcommentary" > < a id = "SP7" class = "paragraph-anchor" > < / a > < b > § 7. Compilation. < / b > < / p >
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< 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" > RTProperties::compile< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > property< / 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" > Properties::is_either_or< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > store_in_negation< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > continue< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Properties::kind_of_contents< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / 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" > K< / 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" > "kindless property"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-emt.html#SP7" class = "function-link" > < span class = "function-syntax" > Emit::ensure_defaultvalue< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > package_request< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > pack< / span > < span class = "plain-syntax" > = < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::package< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > = < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP7_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Declare the property to Inter< / span > < span class = "named-paragraph-number" > 7.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP7_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Compile the property name metadata< / span > < span class = "named-paragraph-number" > 7.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP7_3" class = "named-paragraph-link" > < span class = "named-paragraph" > Compile the property ID< / span > < span class = "named-paragraph-number" > 7.3< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP7_4" class = "named-paragraph-link" > < span class = "named-paragraph" > Annotate the property iname< / span > < span class = "named-paragraph-number" > 7.4< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP7_1" class = "paragraph-anchor" > < / a > < b > § 7.1. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Declare the property to Inter< / span > < span class = "named-paragraph-number" > 7.1< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < a href = "2-emt.html#SP17" class = "function-link" > < span class = "function-syntax" > Emit::property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > );< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-prp.html#SP7" > § 7< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP7_2" class = "paragraph-anchor" > < / a > < b > § 7.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Compile the property name metadata< / span > < span class = "named-paragraph-number" > 7.2< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::nonempty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > name< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < a href = "2-hrr.html#SP23" class = "function-link" > < span class = "function-syntax" > Hierarchy::apply_metadata_from_wording< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pack< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > PROPERTY_NAME_MD_HL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > name< / 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 > < a href = "2-hrr.html#SP23" class = "function-link" > < span class = "function-syntax" > Hierarchy::apply_metadata< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pack< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > PROPERTY_NAME_MD_HL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Produce::get_translation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > ));< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-prp.html#SP7" > § 7< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP7_3" class = "paragraph-anchor" > < / a > < b > § 7.3. < / b > A unique set of values is imposed here during linking.
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< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Compile the property ID< / span > < span class = "named-paragraph-number" > 7.3< / 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" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > id_iname< / span > < span class = "plain-syntax" > = < / span > < a href = "2-hrr.html#SP12" class = "function-link" > < span class = "function-syntax" > Hierarchy::make_iname_in< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > PROPERTY_ID_HL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > pack< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-emt.html#SP9" class = "function-link" > < span class = "function-syntax" > Emit::numeric_constant< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > id_iname< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ); < / span > < span class = "comment-syntax" > a placeholder< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-prp.html#SP7" > § 7< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP7_4" class = "paragraph-anchor" > < / a > < b > § 7.4. < / b > These provide hints to the code-generator, but should possibly be done as
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package metadata instead?
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Annotate the property iname< / span > < span class = "named-paragraph-number" > 7.4< / 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" > Produce::annotate_i< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > SOURCE_ORDER_IANN< / span > < span class = "plain-syntax" > , (< / span > < span class = "identifier-syntax" > inter_ti< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > prn< / 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" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > translated< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Produce::annotate_i< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > iname< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > EXPLICIT_ATTRIBUTE_IANN< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / 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" > Properties::is_either_or< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Produce::annotate_i< / span > < span class = "plain-syntax" > (< / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > EITHER_OR_IANN< / 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 = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "5-prp.html#SP8" class = "function-link" > < span class = "function-syntax" > RTProperties::recommended_as_attribute< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Produce::annotate_i< / span > < span class = "plain-syntax" > (< / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > ATTRIBUTE_IANN< / 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 = "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" > Wordings::nonempty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > name< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Produce::annotate_w< / span > < span class = "plain-syntax" > (< / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > PROPERTY_NAME_IANN< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > name< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > Inter_level_only< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Produce::annotate_i< / span > < span class = "plain-syntax" > (< / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > RTO_IANN< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 0< / 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 = "5-prp.html#SP7" > § 7< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP8" class = "paragraph-anchor" > < / a > < b > § 8. Recommendations to be attributes. < / b > The design of Inter tries to abstract details of how properties are stored
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away from us, but we secretly know that on its most likely implementations
some properties are stored as "attributes". These are memory-efficient flags,
suitable only for either-or properties.
< / p >
< p class = "commentary" > On those platforms, only a limited number of attribute slots exists. The main
Inform compiler does not get to decide which either-or properties get to enjoy
these slots (if indeed they exists); but it can use annotations to provide a
hint to the code-generator — basically saying, "if you have an attribute free,
why not use it on this?"
< / p >
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< p class = "commentary" > Inform makes this recommendation explicitly for a few properties which need
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to run quickly and with low memory usage.
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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" > RTProperties::recommended_as_attribute< / 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" > RTProperties::recommended_as_attribute< / span > < / span > :< br / > < a href = "5-prp.html#SP7_4" > § 7.4< / a > < br / > Emit Code - < a href = "2-ec.html#SP8" > § 8< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > either_or_data< / 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" > "non-EO property"< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > implemented_as_attribute< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NOT_APPLICABLE< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "identifier-syntax" > implemented_as_attribute< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::recommend_storing_as_attribute< / 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" > RTProperties::recommend_storing_as_attribute< / span > < / span > :< br / > < a href = "5-prp.html#SP9" > § 9< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > state< / 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" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > either_or_data< / 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" > "non-EO property"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > implemented_as_attribute< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > state< / 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" > EitherOrProperties::get_negation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > EitherOrProperties::get_negation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )-> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > implemented_as_attribute< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > state< / 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 = "SP9" class = "paragraph-anchor" > < / a > < b > § 9. < / b > Once any special cases have been given attribute slots, the remaining slots
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are then handed out as follows.
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::allocate_attributes< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > slots_given_away< / 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" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > property< / 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" > Properties::is_either_or< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < a href = "5-prp.html#SP4" class = "function-link" > < span class = "function-syntax" > RTProperties::stored_in_negation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / 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" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > make_attribute< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NOT_APPLICABLE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP9_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Any either/or property which some value can hold is ineligible< / span > < span class = "named-paragraph-number" > 9.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP9_2" class = "named-paragraph-link" > < span class = "named-paragraph" > An either/or property translated to an existing attribute must be chosen< / span > < span class = "named-paragraph-number" > 9.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP9_3" class = "named-paragraph-link" > < span class = "named-paragraph" > Otherwise give away attribute slots on a first-come-first-served basis< / span > < span class = "named-paragraph-number" > 9.3< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < a href = "5-prp.html#SP8" class = "function-link" > < span class = "function-syntax" > RTProperties::recommend_storing_as_attribute< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > make_attribute< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / 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 > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Any either/or property which some value can hold is ineligible< / 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" > property_permission< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > pp< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER_PERMISSIONS_FOR_PROPERTY< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pp< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > PropertyPermissions::get_subject< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pp< / 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" > InferenceSubjects::is_an_object< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / 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" > InferenceSubjects::is_a_kind_of_object< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / 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" > make_attribute< / 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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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-prp.html#SP9" > § 9< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP9_2" class = "paragraph-anchor" > < / a > < b > § 9.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > An either/or property translated to an existing attribute must be chosen< / 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" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "5-prp.html#SP5" class = "function-link" > < span class = "function-syntax" > RTProperties::has_been_translated< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > make_attribute< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-prp.html#SP9" > § 9< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP9_3" class = "paragraph-anchor" > < / a > < b > § 9.3. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Otherwise give away attribute slots on a first-come-first-served basis< / span > < span class = "named-paragraph-number" > 9.3< / 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" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > make_attribute< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NOT_APPLICABLE< / 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" > slots_given_away< / span > < span class = "plain-syntax" > ++ < < / span > < span class = "identifier-syntax" > ATTRIBUTE_SLOTS_TO_GIVE_AWAY< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > make_attribute< / 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" > else< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > make_attribute< / 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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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-prp.html#SP9" > § 9< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP10" class = "paragraph-anchor" > < / a > < b > § 10. Non-typesafe 0. < / b > When a property is used to store certain forms of relation, it then needs
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to store either a value within one of the domains, or else a null value used
to mean "this is not set at the moment". Since that null value isn't
a member of the domain, it follows that the property is breaking type safety
when it stores it. This means we need to relax typechecking to enable this
all to work; the following keep a flag to mark that.
< / p >
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< p class = "commentary" > None of this has any effect for either-or properties, since 0 is of course
typesafe for those.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::use_non_typesafe_0< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > either_or_data< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "non-value property"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > use_non_typesafe_0< / 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 = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::uses_non_typesafe_0< / 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" > RTProperties::uses_non_typesafe_0< / span > < / span > :< br / > Showme Command - < a href = "2-sc.html#SP6_1" > § 6.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > either_or_data< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "non-value property"< / 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" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compilation_data< / span > < span class = "plain-syntax" > .< / span > < span class = "identifier-syntax" > use_non_typesafe_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" > RTProperties::compile_vp_default_value< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > value_holster< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > VH< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / 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 = "5-prp.html#SP10" class = "function-link" > < span class = "function-syntax" > RTProperties::uses_non_typesafe_0< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / 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" > Holsters::non_void_context< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > VH< / span > < span class = "plain-syntax" > ))< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Holsters::holster_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > VH< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > LITERAL_IVAL< / 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 = "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 >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > ValueProperties::kind< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / 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 > < a href = "2-dv.html#SP1" class = "function-link" > < span class = "function-syntax" > DefaultValues::to_holster< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > VH< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > name< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "property"< / 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. Schemas. < / b > "Value" properties (those which are not either-or) can be tested or set with
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these schemas, which make use of a kit-defined function called < span class = "extract" > < span class = "extract-syntax" > GProperty< / span > < / span >
and its analogue for writing, < span class = "extract" > < span class = "extract-syntax" > WriteGProperty< / 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" > RTProperties::test_property_value_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > annotated_i6_schema< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Cinders::kind_of_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > pt0< / 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" > Kinds::Behaviour::is_object< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / 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" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "GProperty(%k, *1, %n) == *2"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > , < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / 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 = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::set_property_value_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > annotated_i6_schema< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Cinders::kind_of_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > pt0< / 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" > Kinds::Behaviour::is_object< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / 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" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "WriteGProperty(%k, *1, %n, *2)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > , < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / 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 >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP12" class = "paragraph-anchor" > < / a > < b > § 12. < / b > Either-or properties are trickier, though only because they use a different
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pair of functions at runtime for EO properties of objects than for EO properties
of anything else:
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::write_either_or_schemas< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > adjective_meaning< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > T< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeaningDomains::get_kind< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / 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" > Kinds::Behaviour::is_object< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ))< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP12_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Set the schemata for an either/or property adjective with objects as domain< / span > < span class = "named-paragraph-number" > 12.1< / span > < / a > < / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP12_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Set the schemata for an either/or property adjective with some other domain< / span > < span class = "named-paragraph-number" > 12.2< / span > < / a > < / 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 = "SP12_1" class = "paragraph-anchor" > < / a > < b > § 12.1. < / b > The "objects" domain is not really very different, but it's the one used
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overwhelmingly most often, so we will call the relevant routines directly rather
than accessing them via the unifying routines < span class = "extract" > < span class = "extract-syntax" > GProperty< / span > < / span > and < span class = "extract" > < span class = "extract-syntax" > WriteGProperty< / span > < / span > —
which would work just as well, but more slowly.
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Set the schemata for an either/or property adjective with objects as domain< / span > < span class = "named-paragraph-number" > 12.1< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "5-prp.html#SP4" class = "function-link" > < span class = "function-syntax" > RTProperties::stored_in_negation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > neg< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EitherOrProperties::get_negation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > identifier< / span > < span class = "plain-syntax" > = < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > neg< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i6_schema< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TEST_ATOM_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "GetEitherOrProperty(*1, %n) == false"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > identifier< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NOW_ATOM_TRUE_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "SetEitherOrProperty(*1, %n, true)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > identifier< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NOW_ATOM_FALSE_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "SetEitherOrProperty(*1, %n, false)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > identifier< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > identifier< / span > < span class = "plain-syntax" > = < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i6_schema< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TEST_ATOM_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "GetEitherOrProperty(*1, %n)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > identifier< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NOW_ATOM_TRUE_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "SetEitherOrProperty(*1, %n, false)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > identifier< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NOW_ATOM_FALSE_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "SetEitherOrProperty(*1, %n, true)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > identifier< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-prp.html#SP12" > § 12< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP12_2" class = "paragraph-anchor" > < / a > < b > § 12.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Set the schemata for an either/or property adjective with some other domain< / span > < span class = "named-paragraph-number" > 12.2< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "5-prp.html#SP4" class = "function-link" > < span class = "function-syntax" > RTProperties::stored_in_negation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > neg< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EitherOrProperties::get_negation< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i6_schema< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TEST_ATOM_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "GProperty(%k, *1, %n) == false"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > neg< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NOW_ATOM_TRUE_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "WriteGProperty(%k, *1, %n)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > neg< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NOW_ATOM_FALSE_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "WriteGProperty(%k, *1, %n, true)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > neg< / 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 = "plain-syntax" > < / span > < span class = "identifier-syntax" > i6_schema< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TEST_ATOM_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "GProperty(%k, *1, %n)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NOW_ATOM_TRUE_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "WriteGProperty(%k, *1, %n, true)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > AdjectiveMeanings::make_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > am< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NOW_ATOM_FALSE_TASK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > sch< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "WriteGProperty(%k, *1, %n)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < a href = "5-prp.html#SP2" class = "function-link" > < span class = "function-syntax" > RTProperties::iname< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-prp.html#SP12" > § 12< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP13" class = "paragraph-anchor" > < / a > < b > § 13. < / b > And finally, provision of a property can be tested at runtime with the
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following schemas:
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTProperties::test_provision_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > annotated_i6_schema< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Cinders::kind_of_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > pt0< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Rvalues::to_property< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > pt1< / span > < span class = "plain-syntax" > .< / span > < span class = "identifier-syntax" > constant< / 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" > K< / 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" > prn< / 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" > Kinds::Behaviour::is_object< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ))< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP13_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Compile a run-time test of property provision< / span > < span class = "named-paragraph-number" > 13.1< / span > < / a > < / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-prp.html#SP13_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Determine the result now, since we know already, and compile only the outcome< / span > < span class = "named-paragraph-number" > 13.2< / span > < / a > < / 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 > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Kinds::Behaviour::is_object< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > PK< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Cinders::kind_of_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > pt1< / 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" > Kinds::get_construct< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PK< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > CON_property< / 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" > Kinds::eq< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K_truth_state< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Kinds::unary_construction_material< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PK< / span > < span class = "plain-syntax" > )))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "WhetherProvides(*1, true, *2)"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "WhetherProvides(*1, false, *2)"< / 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 = "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_1" class = "paragraph-anchor" > < / a > < b > § 13.1. < / b > Since type-checking for "object" is too weak to make it certain what kind
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of object the left operand is, we can only test property provision at run-time:
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Compile a run-time test of property provision< / span > < span class = "named-paragraph-number" > 13.1< / 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 = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Properties::is_value_property< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "WhetherProvides(*1, false, *2)"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "WhetherProvides(*1, true, *2)"< / span > < span class = "plain-syntax" > );< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-prp.html#SP13" > § 13< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP13_2" class = "paragraph-anchor" > < / a > < b > § 13.2. < / b > For all other kinds, type-checking is strong enough that we can prove the
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answer now.
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Determine the result now, since we know already, and compile only the outcome< / span > < span class = "named-paragraph-number" > 13.2< / 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" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PropertyPermissions::find< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > KindSubjects::from_kind< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "true"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Calculus::Schemas::modify< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "false"< / span > < span class = "plain-syntax" > );< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-prp.html#SP13" > § 13< / a > .< / li > < / ul >
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