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.elaboration.chr.CHRRuleset;
   5 import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;
   6 import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;
   7 import org.simantics.scl.compiler.elaboration.contexts.TypingContext;
   8 import org.simantics.scl.compiler.environment.Environment;
   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.elaboration.utils.ExpressionDecorator;
  13 import org.simantics.scl.compiler.internal.interpreted.IExpression;
  14 import org.simantics.scl.compiler.top.ExpressionInterpretationContext;
  15 import org.simantics.scl.compiler.types.Type;
  16 import org.simantics.scl.compiler.types.exceptions.MatchException;
  17
  18 import gnu.trove.map.hash.TObjectIntHashMap;
  19 import gnu.trove.set.hash.THashSet;
  20 import gnu.trove.set.hash.TIntHashSet;
  21
  22 public class ECHRRulesetConstructor extends Expression {
  23     CHRRuleset ruleset;
  24
  25     public ECHRRulesetConstructor(CHRRuleset ruleset) {
  26         this.ruleset = ruleset;
  27     }
  28
  29     @Override
  30     public void collectRefs(TObjectIntHashMap<Object> allRefs, TIntHashSet refs) {
  31         ruleset.collectRefs(allRefs, refs);
  32     }
  33     @Override
  34     public void collectVars(TObjectIntHashMap<Variable> allVars, TIntHashSet vars) {
  35         ruleset.collectVars(allVars, vars);
  36     }
  37     @Override
  38     public void forVariables(VariableProcedure procedure) {
  39         ruleset.forVariables(procedure);
  40     }
  41     @Override
  42     protected void updateType() throws MatchException {
  43         throw new InternalCompilerError("Type of ECHRRulesetConstructor should be already given.");
  44     }
  45     @Override
  46     public IVal toVal(Environment env, CodeWriter w) {
  47         return ruleset.generateCode(w);
  48     }
  49     @Override
  50     public void collectFreeVariables(THashSet<Variable> vars) {
  51         ruleset.collectFreeVariables(vars);
  52     }
  53     @Override
  54     public Expression resolve(TranslationContext context) {
  55         context.pushFrame();
  56         context.pushCHRConstraintFrame();
  57         ruleset.resolve(context);
  58         context.popCHRConstraintFrame(ruleset.constraints);
  59         context.popFrame();
  60         return this;
  61     }
  62     @Override
  63     public void setLocationDeep(long loc) {
  64         if(location == Locations.NO_LOCATION) {
  65             this.location = loc;
  66             ruleset.setLocationDeep(loc);
  67         }
  68     }
  69     @Override
  70     public Expression decorate(ExpressionDecorator decorator) {
  71         return this;
  72     }
  73     @Override
  74     public void collectEffects(THashSet<Type> effects) {
  75         ruleset.collectEffects(effects);
  76     }
  77     @Override
  78     public void accept(ExpressionVisitor visitor) {
  79         visitor.visit(this);
  80     }
  81
  82     @Override
  83     public Expression inferType(TypingContext context) {
  84         ruleset.checkType(context);
  85         return this;
  86     }
  87
  88     @Override
  89     public Expression simplify(SimplificationContext context) {
  90         ruleset.simplify(context);
  91         ruleset.compile(context);
  92         return this;
  93     }
  94
  95     @Override
  96     public Expression accept(ExpressionTransformer transformer) {
  97         return transformer.transform(this);
  98     }
  99
 100     @Override
 101     public IExpression toIExpression(ExpressionInterpretationContext context) {
 102         throw new UnsupportedOperationException();
 103     }
 104
 105 }