package org.simantics.scl.compiler.elaboration.expressions;
+import org.simantics.scl.compiler.compilation.CompilationContext;
import org.simantics.scl.compiler.elaboration.chr.CHRRuleset;
import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;
import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;
import org.simantics.scl.compiler.elaboration.contexts.TypingContext;
-import org.simantics.scl.compiler.environment.Environment;
import org.simantics.scl.compiler.errors.Locations;
import org.simantics.scl.compiler.internal.codegen.references.IVal;
import org.simantics.scl.compiler.internal.codegen.writer.CodeWriter;
-import org.simantics.scl.compiler.internal.elaboration.utils.ExpressionDecorator;
import org.simantics.scl.compiler.internal.interpreted.IExpression;
import org.simantics.scl.compiler.top.ExpressionInterpretationContext;
import org.simantics.scl.compiler.types.Type;
import org.simantics.scl.compiler.types.exceptions.MatchException;
-import gnu.trove.map.hash.TObjectIntHashMap;
-import gnu.trove.set.hash.THashSet;
-import gnu.trove.set.hash.TIntHashSet;
-
public class ECHRRuleset extends Expression {
- CHRRuleset ruleset;
- Expression in;
+ public CHRRuleset ruleset;
+ public Expression in;
public ECHRRuleset(CHRRuleset ruleset, Expression in) {
this.ruleset = ruleset;
this.in = in;
}
-
- @Override
- public void collectRefs(TObjectIntHashMap<Object> allRefs, TIntHashSet refs) {
- ruleset.collectRefs(allRefs, refs);
- in.collectRefs(allRefs, refs);
- }
- @Override
- public void collectVars(TObjectIntHashMap<Variable> allVars, TIntHashSet vars) {
- ruleset.collectVars(allVars, vars);
- in.collectVars(allVars, vars);
- }
- @Override
- public void forVariables(VariableProcedure procedure) {
- ruleset.forVariables(procedure);
- in.forVariables(procedure);
- }
+
@Override
protected void updateType() throws MatchException {
setType(in.getType());
}
+
@Override
- public IVal toVal(Environment env, CodeWriter w) {
+ public IVal toVal(CompilationContext context, CodeWriter w) {
ruleset.generateCode(w);
- return in.toVal(env, w);
- }
- @Override
- public void collectFreeVariables(THashSet<Variable> vars) {
- ruleset.collectFreeVariables(vars);
- in.collectFreeVariables(vars);
+ return in.toVal(context, w);
}
+
@Override
public Expression resolve(TranslationContext context) {
+ if(context.currentRuleset != null) {
+ context.getErrorLog().log(location, "Current version of SCL compiler does not support nested rulesets.");
+ return this;
+ }
+ context.currentRuleset = ruleset;
+
context.pushFrame();
context.pushCHRConstraintFrame();
ruleset.resolve(context);
in = in.resolve(context);
- context.popCHRConstraintFrame(ruleset.constraints);
+ context.popCHRConstraintFrame(ruleset);
context.popFrame();
+
+ context.currentRuleset = null;
+
return this;
}
@Override
in.setLocationDeep(loc);
}
}
- @Override
- public Expression decorate(ExpressionDecorator decorator) {
- in = in.decorate(decorator);
- return this;
- }
- @Override
- public void collectEffects(THashSet<Type> effects) {
- ruleset.collectEffects(effects);
- in.collectEffects(effects);
- }
+
@Override
public void accept(ExpressionVisitor visitor) {
visitor.visit(this);
return this;
}
+ @Override
+ public Expression checkBasicType(TypingContext context, Type requiredType) {
+ ruleset.checkType(context);
+ in = in.checkType(context, requiredType);
+ return this;
+ }
+
@Override
public Expression simplify(SimplificationContext context) {
- ruleset.simplify(context);
- ruleset.compile(context);
+ ruleset.simplifyAndCompileIfNeeded(context);
in = in.simplify(context);
return this;
}