bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/query/QMapping.java

   1 package org.simantics.scl.compiler.elaboration.query;
   2
   3 import org.simantics.scl.compiler.common.exceptions.InternalCompilerError;
   4 import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;
   5 import org.simantics.scl.compiler.elaboration.contexts.TypingContext;
   6 import org.simantics.scl.compiler.elaboration.expressions.Expression;
   7 import org.simantics.scl.compiler.elaboration.expressions.QueryTransformer;
   8 import org.simantics.scl.compiler.elaboration.expressions.Variable;
   9 import org.simantics.scl.compiler.elaboration.query.compilation.ConstraintCollectionContext;
  10 import org.simantics.scl.compiler.elaboration.query.compilation.UnsolvableQueryException;
  11 import org.simantics.scl.compiler.elaboration.rules.MappingRelation;
  12 import org.simantics.scl.compiler.errors.Locations;
  13 import org.simantics.scl.compiler.types.Type;
  14
  15 import gnu.trove.map.hash.TObjectIntHashMap;
  16 import gnu.trove.set.hash.TIntHashSet;
  17
  18 public class QMapping extends Query {
  19     public final MappingRelation mappingRelation;
  20     public final Expression[] parameters;
  21
  22     public QMapping(MappingRelation mappingRelation, Expression[] parameters) {
  23         this.mappingRelation = mappingRelation;
  24         this.parameters = parameters;
  25     }
  26
  27     @Override
  28     public void collectVars(TObjectIntHashMap<Variable> allVars,
  29             TIntHashSet vars) {
  30         for(Expression parameter : parameters)
  31             parameter.collectVars(allVars, vars);
  32     }
  33
  34     @Override
  35     public void checkType(TypingContext context) {
  36         // Check parameter types
  37         Type[] parameterTypes = mappingRelation.parameterTypes;
  38         if(parameterTypes.length != parameters.length)
  39             context.getErrorLog().log(location, "Relation is applied with wrong number of parameters.");
  40         else
  41             for(int i=0;i<parameters.length;++i)
  42                 parameters[i] = parameters[i].checkType(context, parameterTypes[i]);
  43     }
  44
  45     @Override
  46     public void collectConstraints(ConstraintCollectionContext context)
  47             throws UnsolvableQueryException {
  48         throw new InternalCompilerError();
  49     }
  50
  51     @Override
  52     public Query replace(ReplaceContext context) {
  53         return new QMapping(mappingRelation,
  54                 Expression.replace(context, parameters));
  55     }
  56
  57     @Override
  58     public void setLocationDeep(long loc) {
  59         if(location == Locations.NO_LOCATION) {
  60             location = loc;
  61             for(Expression parameter : parameters)
  62                 parameter.setLocationDeep(loc);
  63         }
  64     }
  65
  66     @Override
  67     public void accept(QueryVisitor visitor) {
  68         visitor.visit(this);
  69     }
  70
  71     @Override
  72     public Query accept(QueryTransformer transformer) {
  73         return transformer.transform(this);
  74     }
  75 }