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research:jtransformer:api:java:pefs:4.0:typetestt [2015/04/28 12:27]
127.0.0.1 external edit
research:jtransformer:api:java:pefs:4.0:typetestt [2018/05/09 01:59] (current)
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 +{{page>​prologast_bodypef_index&​fullpage&​nofooter}}
 +----
 +
 +=== typeTestT (#id, #parent, #encl, #type, #​expression) ​ ===
 +
 +
 +represents the instanceof expression.
 +
 +=== Arguments ===
 +== ==
 +**#id:** id\\ 
 +the unique ID assigned to this fact.
 +
 +**#​parent:​** id\\ 
 +ID of the parent node.
 +
 +**#encl:** [[methodT|methodT]],​ [[constructorT|constructorT]],​ [[classInitializerT|classInitializerT]],​ [[fieldT|fieldT]]\\ ​
 +ID of the fact that represents the enclosing method.
 +
 +**#type:** [[typeInst]]\\ ​
 +the id of the reference to the right operand of this instanceof expression
 +
 +**#​expression:​** [[plastexpression|expression]]\\
 +left operand of this instanceof expression
 +
 + 
 +=== Sample Java Source ===
 +== ==
 +<Code lang-java>​
 +if (test instanceof TestChild) return;
 +</​Code>​
 +
 +=== Its PEF Representation ===
 +== ==
 +<Code lang-prolog>​
 +ifT(#​ifT_ID,​ #Parent, _, #Condition, #ThenPart, '​null'​).
 +typeTestT(#​Condition,​ #ifT_ID, _, #typeref, #​expression).
 +identT(#​expression,​ Condition, _, '​test',​ _).
 +returnT(#​ThenPart,​ ID, _, '​null'​).
 +</​Code>​
 +
 +=== AST Specification ===
 +== ==
 +<​Code>​
 +ast_node_type_spec(typeTestT,​[ ​   ​
 +     ​ast_arg(id, ​    ​mult(1,​1,​no ), id,   ​[typeTestT]),​
 +     ​ast_arg(parent,​ mult(1,1,no ), id,   ​[id]),​
 +     ​ast_arg(encl, ​  ​mult(1,​1,​no ), id,   ​[methodT,​ constructorT,​ classInitializerT,​ fieldT]),
 +     ​ast_arg(type, ​  ​mult(1,​1,​no ), id,   ​[type_inst]),​
 +     ​ast_arg(expr, ​  ​mult(1,​1,​no ), id,   ​[expressionType])
 +]).
 +</​Code>​
  
research/jtransformer/api/java/pefs/4.0/typetestt.txt · Last modified: 2018/05/09 01:59 (external edit)

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