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<!-- Weave of '5/trc2' generated by 7 -->
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< ul class = "crumbs" > < li > < a href = "../webs.html" > ★ < / a > < / li > < li > < a href = "index.html" > inter< / a > < / li > < li > < a href = "index.html#5" > Chapter 5: Code Constructs< / a > < / li > < li > < b > The Reference Construct< / b > < / li > < / ul > < p class = "purpose" > Defining the Reference construct.< / p >
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< p class = "inwebparagraph" > < a id = "SP1" > < / a > < b > § 1. < / b > < / p >
< pre class = "definitions" >
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< span class = "definitionkeyword" > enum< / span > < span class = "constant" > REFERENCE_IST< / span >
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< / pre >
< pre class = "display" >
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< span class = "reserved" > void< / span > < span class = "plain" > < / span > < span class = "functiontext" > Inter::Reference::define< / span > < span class = "plain" > (< / span > < span class = "reserved" > void< / span > < span class = "plain" > ) {< / span >
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< span class = "reserved" > inter_construct< / span > < span class = "plain" > *< / span > < span class = "identifier" > IC< / span > < span class = "plain" > = < / span > < span class = "functiontext" > Inter::Defn::create_construct< / span > < span class = "plain" > (< / span >
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< span class = "constant" > REFERENCE_IST< / span > < span class = "plain" > ,< / span >
< span class = "identifier" > L< / span > < span class = "string" > "reference"< / span > < span class = "plain" > ,< / span >
< span class = "identifier" > I< / span > < span class = "string" > "reference"< / span > < span class = "plain" > , < / span > < span class = "identifier" > I< / span > < span class = "string" > "references"< / span > < span class = "plain" > );< / span >
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< span class = "identifier" > IC< / span > < span class = "plain" > -< / span > < span class = "element" > > min_level< / span > < span class = "plain" > = 1;< / span >
< span class = "identifier" > IC< / span > < span class = "plain" > -< / span > < span class = "element" > > max_level< / span > < span class = "plain" > = 100000000;< / span >
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< span class = "identifier" > IC< / span > < span class = "plain" > -< / span > < span class = "element" > > usage_permissions< / span > < span class = "plain" > = < / span > < span class = "constant" > INSIDE_CODE_PACKAGE< / span > < span class = "plain" > + < / span > < span class = "constant" > CAN_HAVE_CHILDREN< / span > < span class = "plain" > ;< / span >
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< span class = "identifier" > METHOD_ADD< / span > < span class = "plain" > (< / span > < span class = "identifier" > IC< / span > < span class = "plain" > , < / span > < span class = "constant" > CONSTRUCT_READ_MTID< / span > < span class = "plain" > , < / span > < span class = "functiontext" > Inter::Reference::read< / span > < span class = "plain" > );< / span >
< span class = "identifier" > METHOD_ADD< / span > < span class = "plain" > (< / span > < span class = "identifier" > IC< / span > < span class = "plain" > , < / span > < span class = "constant" > CONSTRUCT_VERIFY_MTID< / span > < span class = "plain" > , < / span > < span class = "functiontext" > Inter::Reference::verify< / span > < span class = "plain" > );< / span >
< span class = "identifier" > METHOD_ADD< / span > < span class = "plain" > (< / span > < span class = "identifier" > IC< / span > < span class = "plain" > , < / span > < span class = "constant" > CONSTRUCT_WRITE_MTID< / span > < span class = "plain" > , < / span > < span class = "functiontext" > Inter::Reference::write< / span > < span class = "plain" > );< / span >
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< span class = "identifier" > METHOD_ADD< / span > < span class = "plain" > (< / span > < span class = "identifier" > IC< / span > < span class = "plain" > , < / span > < span class = "constant" > VERIFY_INTER_CHILDREN_MTID< / span > < span class = "plain" > , < / span > < span class = "functiontext" > Inter::Reference::verify_children< / span > < span class = "plain" > );< / span >
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< span class = "plain" > }< / span >
< / pre >
< p class = "inwebparagraph" > < / p >
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< p class = "endnote" > The function Inter::Reference::define is used in 3/dfn (< a href = "3-dfn.html#SP3" > § 3< / a > ).< / p >
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< p class = "inwebparagraph" > < a id = "SP2" > < / a > < b > § 2. < / b > < / p >
< pre class = "definitions" >
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< span class = "definitionkeyword" > define< / span > < span class = "constant" > BLOCK_RCE_IFLD< / span > < span class = "plain" > 2< / span >
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< span class = "definitionkeyword" > define< / span > < span class = "constant" > EXTENT_RCE_IFR< / span > < span class = "plain" > 3< / span >
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< / pre >
< pre class = "display" >
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< span class = "reserved" > void< / span > < span class = "plain" > < / span > < span class = "functiontext" > Inter::Reference::read< / span > < span class = "plain" > (< / span > < span class = "reserved" > inter_construct< / span > < span class = "plain" > *< / span > < span class = "identifier" > IC< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_bookmark< / span > < span class = "plain" > *< / span > < span class = "identifier" > IBM< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_line_parse< / span > < span class = "plain" > *< / span > < span class = "identifier" > ilp< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_error_location< / span > < span class = "plain" > *< / span > < span class = "identifier" > eloc< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_error_message< / span > < span class = "plain" > **< / span > < span class = "identifier" > E< / span > < span class = "plain" > ) {< / span >
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< span class = "reserved" > if< / span > < span class = "plain" > (< / span > < span class = "functiontext" > Inter::Annotations::exist< / span > < span class = "plain" > (& (< / span > < span class = "identifier" > ilp< / span > < span class = "plain" > -< / span > < span class = "element" > > set< / span > < span class = "plain" > ))) { *< / span > < span class = "identifier" > E< / span > < span class = "plain" > = < / span > < span class = "functiontext" > Inter::Errors::plain< / span > < span class = "plain" > (< / span > < span class = "identifier" > I< / span > < span class = "string" > "__annotations are not allowed"< / span > < span class = "plain" > , < / span > < span class = "identifier" > eloc< / span > < span class = "plain" > ); < / span > < span class = "reserved" > return< / span > < span class = "plain" > ; }< / span >
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< span class = "plain" > *< / span > < span class = "identifier" > E< / span > < span class = "plain" > = < / span > < span class = "functiontext" > Inter::Defn::vet_level< / span > < span class = "plain" > (< / span > < span class = "identifier" > IBM< / span > < span class = "plain" > , < / span > < span class = "constant" > REFERENCE_IST< / span > < span class = "plain" > , < / span > < span class = "identifier" > ilp< / span > < span class = "plain" > -< / span > < span class = "element" > > indent_level< / span > < span class = "plain" > , < / span > < span class = "identifier" > eloc< / span > < span class = "plain" > );< / span >
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< span class = "reserved" > if< / span > < span class = "plain" > (*< / span > < span class = "identifier" > E< / span > < span class = "plain" > ) < / span > < span class = "reserved" > return< / span > < span class = "plain" > ;< / span >
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< span class = "reserved" > inter_package< / span > < span class = "plain" > *< / span > < span class = "identifier" > routine< / span > < span class = "plain" > = < / span > < span class = "functiontext" > Inter::Defn::get_latest_block_package< / span > < span class = "plain" > ();< / span >
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< span class = "reserved" > if< / span > < span class = "plain" > (< / span > < span class = "identifier" > routine< / span > < span class = "plain" > == < / span > < span class = "identifier" > NULL< / span > < span class = "plain" > ) { *< / span > < span class = "identifier" > E< / span > < span class = "plain" > = < / span > < span class = "functiontext" > Inter::Errors::plain< / span > < span class = "plain" > (< / span > < span class = "identifier" > I< / span > < span class = "string" > "'reference' used outside function"< / span > < span class = "plain" > , < / span > < span class = "identifier" > eloc< / span > < span class = "plain" > ); < / span > < span class = "reserved" > return< / span > < span class = "plain" > ; }< / span >
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< span class = "plain" > *< / span > < span class = "identifier" > E< / span > < span class = "plain" > = < / span > < span class = "functiontext" > Inter::Reference::new< / span > < span class = "plain" > (< / span > < span class = "identifier" > IBM< / span > < span class = "plain" > , < / span > < span class = "identifier" > ilp< / span > < span class = "plain" > -< / span > < span class = "element" > > indent_level< / span > < span class = "plain" > , < / span > < span class = "identifier" > eloc< / span > < span class = "plain" > );< / span >
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< span class = "plain" > }< / span >
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< span class = "reserved" > inter_error_message< / span > < span class = "plain" > *< / span > < span class = "functiontext" > Inter::Reference::new< / span > < span class = "plain" > (< / span > < span class = "reserved" > inter_bookmark< / span > < span class = "plain" > *< / span > < span class = "identifier" > IBM< / span > < span class = "plain" > , < / span > < span class = "reserved" > int< / span > < span class = "plain" > < / span > < span class = "identifier" > level< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_error_location< / span > < span class = "plain" > *< / span > < span class = "identifier" > eloc< / span > < span class = "plain" > ) {< / span >
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< span class = "reserved" > inter_tree_node< / span > < span class = "plain" > *< / span > < span class = "identifier" > P< / span > < span class = "plain" > = < / span > < span class = "functiontext" > Inter::Node::fill_1< / span > < span class = "plain" > (< / span > < span class = "identifier" > IBM< / span > < span class = "plain" > , < / span > < span class = "constant" > REFERENCE_IST< / span > < span class = "plain" > , 0, < / span > < span class = "identifier" > eloc< / span > < span class = "plain" > , (< / span > < span class = "constant" > inter_t< / span > < span class = "plain" > ) < / span > < span class = "identifier" > level< / span > < span class = "plain" > );< / span >
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< span class = "reserved" > inter_error_message< / span > < span class = "plain" > *< / span > < span class = "identifier" > E< / span > < span class = "plain" > = < / span > < span class = "functiontext" > Inter::Defn::verify_construct< / span > < span class = "plain" > (< / span > < span class = "functiontext" > Inter::Bookmarks::package< / span > < span class = "plain" > (< / span > < span class = "identifier" > IBM< / span > < span class = "plain" > ), < / span > < span class = "identifier" > P< / span > < span class = "plain" > ); < / span > < span class = "reserved" > if< / span > < span class = "plain" > (< / span > < span class = "identifier" > E< / span > < span class = "plain" > ) < / span > < span class = "reserved" > return< / span > < span class = "plain" > < / span > < span class = "identifier" > E< / span > < span class = "plain" > ;< / span >
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< span class = "functiontext" > Inter::Bookmarks::insert< / span > < span class = "plain" > (< / span > < span class = "identifier" > IBM< / span > < span class = "plain" > , < / span > < span class = "identifier" > P< / span > < span class = "plain" > );< / span >
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< span class = "reserved" > return< / span > < span class = "plain" > < / span > < span class = "identifier" > NULL< / span > < span class = "plain" > ;< / span >
< span class = "plain" > }< / span >
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< span class = "reserved" > void< / span > < span class = "plain" > < / span > < span class = "functiontext" > Inter::Reference::verify< / span > < span class = "plain" > (< / span > < span class = "reserved" > inter_construct< / span > < span class = "plain" > *< / span > < span class = "identifier" > IC< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_tree_node< / span > < span class = "plain" > *< / span > < span class = "identifier" > P< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_package< / span > < span class = "plain" > *< / span > < span class = "identifier" > owner< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_error_message< / span > < span class = "plain" > **< / span > < span class = "identifier" > E< / span > < span class = "plain" > ) {< / span >
< span class = "reserved" > if< / span > < span class = "plain" > (< / span > < span class = "identifier" > P< / span > < span class = "plain" > -< / span > < span class = "element" > > W.extent< / span > < span class = "plain" > != < / span > < span class = "constant" > EXTENT_RCE_IFR< / span > < span class = "plain" > ) { *< / span > < span class = "identifier" > E< / span > < span class = "plain" > = < / span > < span class = "functiontext" > Inter::Node::error< / span > < span class = "plain" > (< / span > < span class = "identifier" > P< / span > < span class = "plain" > , < / span > < span class = "identifier" > I< / span > < span class = "string" > "extent wrong"< / span > < span class = "plain" > , < / span > < span class = "identifier" > NULL< / span > < span class = "plain" > ); < / span > < span class = "reserved" > return< / span > < span class = "plain" > ; }< / span >
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< span class = "plain" > }< / span >
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< span class = "reserved" > void< / span > < span class = "plain" > < / span > < span class = "functiontext" > Inter::Reference::write< / span > < span class = "plain" > (< / span > < span class = "reserved" > inter_construct< / span > < span class = "plain" > *< / span > < span class = "identifier" > IC< / span > < span class = "plain" > , < / span > < span class = "identifier" > OUTPUT_STREAM< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_tree_node< / span > < span class = "plain" > *< / span > < span class = "identifier" > P< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_error_message< / span > < span class = "plain" > **< / span > < span class = "identifier" > E< / span > < span class = "plain" > ) {< / span >
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< span class = "identifier" > WRITE< / span > < span class = "plain" > (< / span > < span class = "string" > "reference"< / span > < span class = "plain" > );< / span >
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< span class = "plain" > }< / span >
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< span class = "reserved" > void< / span > < span class = "plain" > < / span > < span class = "functiontext" > Inter::Reference::verify_children< / span > < span class = "plain" > (< / span > < span class = "reserved" > inter_construct< / span > < span class = "plain" > *< / span > < span class = "identifier" > IC< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_tree_node< / span > < span class = "plain" > *< / span > < span class = "identifier" > P< / span > < span class = "plain" > , < / span > < span class = "reserved" > inter_error_message< / span > < span class = "plain" > **< / span > < span class = "identifier" > E< / span > < span class = "plain" > ) {< / span >
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< span class = "identifier" > LOOP_THROUGH_INTER_CHILDREN< / span > < span class = "plain" > (< / span > < span class = "identifier" > C< / span > < span class = "plain" > , < / span > < span class = "identifier" > P< / span > < span class = "plain" > ) {< / span >
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< span class = "reserved" > if< / span > < span class = "plain" > ((< / span > < span class = "identifier" > C< / span > < span class = "plain" > -< / span > < span class = "element" > > W.data< / span > < span class = "plain" > [0] != < / span > < span class = "constant" > INV_IST< / span > < span class = "plain" > ) & & (< / span > < span class = "identifier" > C< / span > < span class = "plain" > -< / span > < span class = "element" > > W.data< / span > < span class = "plain" > [0] != < / span > < span class = "constant" > REF_IST< / span > < span class = "plain" > ) & & (< / span > < span class = "identifier" > C< / span > < span class = "plain" > -< / span > < span class = "element" > > W.data< / span > < span class = "plain" > [0] != < / span > < span class = "constant" > SPLAT_IST< / span > < span class = "plain" > ) & & (< / span > < span class = "identifier" > C< / span > < span class = "plain" > -< / span > < span class = "element" > > W.data< / span > < span class = "plain" > [0] != < / span > < span class = "constant" > VAL_IST< / span > < span class = "plain" > ) & & (< / span > < span class = "identifier" > C< / span > < span class = "plain" > -< / span > < span class = "element" > > W.data< / span > < span class = "plain" > [0] != < / span > < span class = "constant" > LABEL_IST< / span > < span class = "plain" > )) {< / span >
< span class = "plain" > *< / span > < span class = "identifier" > E< / span > < span class = "plain" > = < / span > < span class = "functiontext" > Inter::Node::error< / span > < span class = "plain" > (< / span > < span class = "identifier" > C< / span > < span class = "plain" > , < / span > < span class = "identifier" > I< / span > < span class = "string" > "only an inv, a ref, a splat, a val, or a label can be below a reference"< / span > < span class = "plain" > , < / span > < span class = "identifier" > NULL< / span > < span class = "plain" > );< / span >
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< span class = "reserved" > return< / span > < span class = "plain" > ;< / span >
< span class = "plain" > }< / span >
< span class = "plain" > }< / span >
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< span class = "plain" > }< / span >
< / pre >
< p class = "inwebparagraph" > < / p >
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< p class = "endnote" > The function Inter::Reference::read is used in < a href = "#SP1" > § 1< / a > .< / p >
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< p class = "endnote" > The function Inter::Reference::new appears nowhere else.< / p >
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< p class = "endnote" > The function Inter::Reference::verify is used in < a href = "#SP1" > § 1< / a > .< / p >
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< p class = "endnote" > The function Inter::Reference::write is used in < a href = "#SP1" > § 1< / a > .< / p >
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< p class = "endnote" > The function Inter::Reference::verify_children is used in < a href = "#SP1" > § 1< / a > .< / p >
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< hr class = "tocbar" >
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< ul class = "toc" > < li > < a href = "5-tec.html" > Back to 'The Evaluation Construct'< / a > < / li > < li > < a href = "5-tcc2.html" > Continue with 'The Cast Construct'< / a > < / li > < / ul > < hr class = "tocbar" >
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<!-- End of weave -->
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