bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/list/ListGuard.java

   1 package org.simantics.scl.compiler.elaboration.expressions.list;\r
   2 \r
   3 import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;\r
   4 import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;\r
   5 import org.simantics.scl.compiler.elaboration.contexts.TypingContext;\r
   6 import org.simantics.scl.compiler.elaboration.expressions.Expression;\r
   7 import org.simantics.scl.compiler.elaboration.expressions.Variable;\r
   8 import org.simantics.scl.compiler.elaboration.expressions.VariableProcedure;\r
   9 import org.simantics.scl.compiler.errors.Locations;\r
  10 import org.simantics.scl.compiler.internal.elaboration.utils.ExpressionDecorator;\r
  11 import org.simantics.scl.compiler.types.Type;\r
  12 import org.simantics.scl.compiler.types.Types;\r
  13 \r
  14 import gnu.trove.map.hash.TObjectIntHashMap;\r
  15 import gnu.trove.set.hash.THashSet;\r
  16 import gnu.trove.set.hash.TIntHashSet;\r
  17 \r
  18 public class ListGuard extends ListQualifier {\r
  19     public Expression condition;\r
  20 \r
  21     public ListGuard(Expression condition) {\r
  22         this.condition = condition;\r
  23     }\r
  24 \r
  25     @Override\r
  26     public void checkType(TypingContext context) {\r
  27         condition.checkType(context, Types.BOOLEAN);\r
  28     }\r
  29 \r
  30     @Override\r
  31     public void collectRefs(TObjectIntHashMap<Object> allRefs,\r
  32             TIntHashSet refs) {\r
  33         condition.collectRefs(allRefs, refs);\r
  34     }\r
  35 \r
  36     @Override\r
  37     public void collectVars(TObjectIntHashMap<Variable> allVars,\r
  38             TIntHashSet vars) {\r
  39         condition.collectVars(allVars, vars);\r
  40     }\r
  41 \r
  42     @Override\r
  43     public void collectFreeVariables(THashSet<Variable> vars) {\r
  44         condition.collectFreeVariables(vars);\r
  45     }\r
  46 \r
  47     @Override\r
  48     public CompiledQualifier compile(SimplificationContext context) {\r
  49         return new CompiledQualifier(\r
  50                 context.guardList(condition.copy()), \r
  51                 context.tuple());\r
  52     }\r
  53 \r
  54     @Override\r
  55     public void resolve(TranslationContext context) {\r
  56         condition = condition.resolve(context);        \r
  57     }\r
  58 \r
  59     @Override\r
  60     public void decorate(ExpressionDecorator decorator) {\r
  61         condition = condition.decorate(decorator);\r
  62     }\r
  63     \r
  64     @Override\r
  65     public void collectEffects(THashSet<Type> effects) {\r
  66         condition.collectEffects(effects);\r
  67     }\r
  68     \r
  69     @Override\r
  70     public void setLocationDeep(long loc) {\r
  71         if(location == Locations.NO_LOCATION) {\r
  72             location = loc;\r
  73             condition.setLocationDeep(loc);\r
  74         }\r
  75     }\r
  76     \r
  77     @Override\r
  78     public void accept(ListQualifierVisitor visitor) {\r
  79         visitor.visit(this);\r
  80     }\r
  81     \r
  82     @Override\r
  83     public void forVariables(VariableProcedure procedure) {\r
  84         condition.forVariables(procedure);\r
  85     }\r
  86     \r
  87     @Override\r
  88     public ListQualifier accept(ListQualifierTransformer transformer) {\r
  89         return transformer.transform(this);\r
  90     }\r
  91 }\r