--- /dev/null
+package org.simantics.scl.compiler.elaboration.expressions;\r
+\r
+import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;\r
+import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;\r
+import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;\r
+import org.simantics.scl.compiler.elaboration.contexts.TypingContext;\r
+import org.simantics.scl.compiler.elaboration.equation.Equation;\r
+import org.simantics.scl.compiler.errors.Locations;\r
+import org.simantics.scl.compiler.internal.elaboration.utils.ExpressionDecorator;\r
+import org.simantics.scl.compiler.types.Type;\r
+import org.simantics.scl.compiler.types.Types;\r
+import org.simantics.scl.compiler.types.exceptions.MatchException;\r
+\r
+import gnu.trove.map.hash.TObjectIntHashMap;\r
+import gnu.trove.set.hash.THashSet;\r
+import gnu.trove.set.hash.TIntHashSet;\r
+\r
+public class EEquations extends SimplifiableExpression {\r
+\r
+ public Equation[] equations;\r
+ public Type effect = Types.NO_EFFECTS;\r
+ \r
+ public EEquations(Equation[] equations) {\r
+ this.equations = equations;\r
+ }\r
+ \r
+ public EEquations(long location, Equation[] equations) {\r
+ this(equations);\r
+ this.location = location;\r
+ }\r
+\r
+ @Override\r
+ public Expression resolve(TranslationContext context) {\r
+ for(Equation equation : equations)\r
+ equation.resolve(context); \r
+ return this;\r
+ }\r
+\r
+ @Override\r
+ public void setLocationDeep(long loc) {\r
+ if(location == Locations.NO_LOCATION) {\r
+ location = loc;\r
+ for(Equation equation : equations)\r
+ equation.setLocationDeep(loc);\r
+ }\r
+ }\r
+\r
+ @Override\r
+ public Expression accept(ExpressionTransformer transformer) {\r
+ return transformer.transform(this);\r
+ }\r
+\r
+ @Override\r
+ public void collectRefs(TObjectIntHashMap<Object> allRefs, TIntHashSet refs) {\r
+ for(Equation equation : equations)\r
+ equation.collectRefs(allRefs, refs); \r
+ }\r
+\r
+ @Override\r
+ public void collectVars(TObjectIntHashMap<Variable> allVars, TIntHashSet vars) {\r
+ for(Equation equation : equations)\r
+ equation.collectVars(allVars, vars);\r
+ }\r
+\r
+ @Override\r
+ public void forVariables(VariableProcedure procedure) {\r
+ for(Equation equation : equations)\r
+ equation.forVariables(procedure);\r
+ }\r
+\r
+ @Override\r
+ protected void updateType() throws MatchException {\r
+ setType(Types.UNIT);\r
+ }\r
+\r
+ @Override\r
+ public void collectFreeVariables(THashSet<Variable> vars) {\r
+ for(Equation equation : equations)\r
+ equation.collectFreeVariables(vars);\r
+ }\r
+\r
+ @Override\r
+ public Expression decorate(ExpressionDecorator decorator) {\r
+ if(decorator.decorateSubstructure(this)) {\r
+ for(Equation equation : equations)\r
+ equation.decorate(decorator);\r
+ }\r
+ return this;\r
+ }\r
+\r
+ @Override\r
+ public void collectEffects(THashSet<Type> effects) {\r
+ for(Equation equation : equations)\r
+ equation.collectEffects(effects);\r
+ }\r
+\r
+ @Override\r
+ public void accept(ExpressionVisitor visitor) {\r
+ visitor.visit(this);\r
+ }\r
+ \r
+ @Override\r
+ public Expression inferType(TypingContext context) {\r
+ context.declareEffect(this.location, effect);\r
+ for(Equation equation : equations)\r
+ equation.checkType(context);\r
+ return this;\r
+ }\r
+ \r
+ @Override\r
+ public Expression simplify(SimplificationContext context) {\r
+ context.getErrorLog().log(location, "Equations should be transformed into other expressions before simplification phase.");\r
+ return Expressions.tuple();\r
+ }\r
+ \r
+ @Override\r
+ public Expression replace(ReplaceContext context) {\r
+ Equation[] newEquations = new Equation[equations.length];\r
+ for(int i=0;i<equations.length;++i)\r
+ newEquations[i] = equations[i].replace(context);\r
+ return new EEquations(location, newEquations);\r
+ }\r
+\r
+}\r