bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/parsing/types/TPredAst.java

   1 package org.simantics.scl.compiler.internal.parsing.types;
   2
   3 import org.simantics.scl.compiler.elaboration.contexts.TypeTranslationContext;
   4 import org.simantics.scl.compiler.internal.types.TypeElaborationContext;
   5 import org.simantics.scl.compiler.types.Type;
   6 import org.simantics.scl.compiler.types.Types;
   7 import org.simantics.scl.compiler.types.kinds.Kind;
   8 import org.simantics.scl.compiler.types.kinds.Kinds;
   9
  10 import gnu.trove.map.hash.TObjectIntHashMap;
  11 import gnu.trove.set.hash.TIntHashSet;
  12
  13 public class TPredAst extends TypeAst {
  14
  15     public final TypeAst constraint;
  16     public final TypeAst type;
  17
  18     public TPredAst(TypeAst constraint, TypeAst type) {
  19         this.constraint = constraint;
  20         this.type = type;
  21     }
  22
  23     @Override
  24     public void toString(StringBuilder b) {
  25         constraint.toString(b);
  26         b.append(" => ");
  27         type.toString(b);
  28     }
  29
  30     @Override
  31     public Type toType(TypeTranslationContext context, Kind expectedKind) {
  32         context.unify(location, Kinds.STAR, expectedKind);
  33         return Types.constrained(
  34                 constraint.toTFuncApply(context),
  35                 type.toType(context, Kinds.STAR));
  36     }
  37
  38     @Override
  39     public Type toType(TypeElaborationContext context) {
  40         return Types.constrained(
  41                 constraint.toTFuncApply(context),
  42                 type.toType(context));
  43     }
  44
  45     @Override
  46     public int getPrecedence() {
  47         return 2;
  48     }
  49
  50     @Override
  51     public void collectReferences(TObjectIntHashMap<String> typeNameMap,
  52             TIntHashSet set) {
  53         constraint.collectReferences(typeNameMap, set);
  54         type.collectReferences(typeNameMap, set);
  55     }
  56
  57 }