bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/EError.java

   1 package org.simantics.scl.compiler.elaboration.expressions;\r
   2 \r
   3 import gnu.trove.map.hash.TObjectIntHashMap;\r
   4 import gnu.trove.set.hash.THashSet;\r
   5 import gnu.trove.set.hash.TIntHashSet;\r
   6 \r
   7 import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;\r
   8 import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;\r
   9 import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;\r
  10 import org.simantics.scl.compiler.elaboration.contexts.TypingContext;\r
  11 import org.simantics.scl.compiler.environment.Environment;\r
  12 import org.simantics.scl.compiler.errors.Locations;\r
  13 import org.simantics.scl.compiler.internal.codegen.references.IVal;\r
  14 import org.simantics.scl.compiler.internal.codegen.writer.CodeWriter;\r
  15 import org.simantics.scl.compiler.internal.elaboration.utils.ExpressionDecorator;\r
  16 import org.simantics.scl.compiler.types.Type;\r
  17 import org.simantics.scl.compiler.types.Types;\r
  18 import org.simantics.scl.compiler.types.exceptions.MatchException;\r
  19 import org.simantics.scl.compiler.types.kinds.Kinds;\r
  20 \r
  21 public class EError extends Expression {\r
  22 \r
  23     public EError(long loc, Type type) {\r
  24         super(loc);\r
  25         setType(type);\r
  26     }\r
  27     \r
  28     public EError() {     \r
  29     }\r
  30     \r
  31     public EError(long loc) {\r
  32         this(loc, Types.metaVar(Kinds.STAR));\r
  33     }\r
  34 \r
  35         public void collectRefs(TObjectIntHashMap<Object> allRefs, TIntHashSet refs) {\r
  36     }\r
  37         \r
  38         @Override\r
  39         public void collectVars(TObjectIntHashMap<Variable> allVars,\r
  40                 TIntHashSet vars) {    \r
  41         }\r
  42 \r
  43         @Override\r
  44         protected void updateType() throws MatchException {\r
  45             setType(Types.metaVar(Kinds.STAR));     \r
  46         }\r
  47         \r
  48         @Override\r
  49         public IVal toVal(Environment env, CodeWriter w) {\r
  50         throw new UnsupportedOperationException();\r
  51     }\r
  52 \r
  53     @Override\r
  54     public void collectFreeVariables(THashSet<Variable> vars) {\r
  55     }\r
  56 \r
  57     @Override\r
  58     public Expression simplify(SimplificationContext context) {\r
  59         return this;\r
  60     }\r
  61 \r
  62     @Override\r
  63     public Expression resolve(TranslationContext context) {\r
  64         return this;\r
  65     }\r
  66     \r
  67     @Override\r
  68     public Expression inferType(TypingContext context) {\r
  69         return this;\r
  70     }\r
  71 \r
  72     @Override\r
  73     public Expression decorate(ExpressionDecorator decorator) {\r
  74         return this;\r
  75     }\r
  76 \r
  77     @Override\r
  78     public void collectEffects(THashSet<Type> effects) {\r
  79     }\r
  80     \r
  81     @Override\r
  82     public void setLocationDeep(long loc) {\r
  83         if(location == Locations.NO_LOCATION)\r
  84             location = loc;\r
  85     }\r
  86     \r
  87     @Override\r
  88     public void accept(ExpressionVisitor visitor) {\r
  89         visitor.visit(this);\r
  90     }\r
  91     \r
  92     @Override\r
  93     public Expression replace(ReplaceContext context) {\r
  94         return this;\r
  95     }\r
  96 \r
  97     @Override\r
  98     public void forVariables(VariableProcedure procedure) {\r
  99     }\r
 100     \r
 101     @Override\r
 102     public Expression accept(ExpressionTransformer transformer) {\r
 103         return transformer.transform(this);\r
 104     }\r
 105 \r
 106 }\r