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

   1 package org.simantics.scl.compiler.elaboration.expressions;
   2
   3 import org.simantics.scl.compiler.common.exceptions.InternalCompilerError;
   4 import org.simantics.scl.compiler.compilation.CompilationContext;
   5 import org.simantics.scl.compiler.elaboration.chr.CHRRuleset;
   6 import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;
   7 import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;
   8 import org.simantics.scl.compiler.elaboration.contexts.TypingContext;
   9 import org.simantics.scl.compiler.errors.Locations;
  10 import org.simantics.scl.compiler.internal.codegen.references.IVal;
  11 import org.simantics.scl.compiler.internal.codegen.writer.CodeWriter;
  12 import org.simantics.scl.compiler.internal.interpreted.IExpression;
  13 import org.simantics.scl.compiler.top.ExpressionInterpretationContext;
  14 import org.simantics.scl.compiler.types.Type;
  15 import org.simantics.scl.compiler.types.exceptions.MatchException;
  16
  17 import gnu.trove.map.hash.TObjectIntHashMap;
  18 import gnu.trove.set.hash.THashSet;
  19 import gnu.trove.set.hash.TIntHashSet;
  20
  21 public class ECHRRulesetConstructor extends Expression {
  22     CHRRuleset ruleset;
  23
  24     public ECHRRulesetConstructor(CHRRuleset ruleset) {
  25         this.ruleset = ruleset;
  26     }
  27
  28     @Override
  29     public void collectRefs(TObjectIntHashMap<Object> allRefs, TIntHashSet refs) {
  30         ruleset.collectRefs(allRefs, refs);
  31     }
  32     @Override
  33     public void collectVars(TObjectIntHashMap<Variable> allVars, TIntHashSet vars) {
  34         ruleset.collectVars(allVars, vars);
  35     }
  36     @Override
  37     protected void updateType() throws MatchException {
  38         throw new InternalCompilerError("Type of ECHRRulesetConstructor should be already given.");
  39     }
  40     @Override
  41     public IVal toVal(CompilationContext context, CodeWriter w) {
  42         return ruleset.generateCode(w);
  43     }
  44     @Override
  45     public void collectFreeVariables(THashSet<Variable> vars) {
  46         ruleset.collectFreeVariables(vars);
  47     }
  48     @Override
  49     public Expression resolve(TranslationContext context) {
  50         context.pushFrame();
  51         context.pushCHRConstraintFrame();
  52         ruleset.resolve(context);
  53         context.popCHRConstraintFrame(ruleset.constraints);
  54         context.popFrame();
  55         return this;
  56     }
  57     @Override
  58     public void setLocationDeep(long loc) {
  59         if(location == Locations.NO_LOCATION) {
  60             this.location = loc;
  61             ruleset.setLocationDeep(loc);
  62         }
  63     }
  64     @Override
  65     public void collectEffects(THashSet<Type> effects) {
  66         ruleset.collectEffects(effects);
  67     }
  68     @Override
  69     public void accept(ExpressionVisitor visitor) {
  70         visitor.visit(this);
  71     }
  72
  73     @Override
  74     public Expression inferType(TypingContext context) {
  75         ruleset.checkType(context);
  76         return this;
  77     }
  78
  79     @Override
  80     public Expression simplify(SimplificationContext context) {
  81         ruleset.simplify(context);
  82         ruleset.compile(context);
  83         return this;
  84     }
  85
  86     @Override
  87     public Expression accept(ExpressionTransformer transformer) {
  88         return transformer.transform(this);
  89     }
  90
  91     @Override
  92     public IExpression toIExpression(ExpressionInterpretationContext context) {
  93         throw new UnsupportedOperationException();
  94     }
  95
  96 }