Merged changes from feature/scl to master.

[simantics/platform.git] / bundles / org.simantics.scl.compiler / src / org / simantics / scl / compiler / elaboration / chr / CHRQuery.java

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/chr/CHRQuery.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/chr/CHRQuery.java
new file mode 100644 (file)
index 0000000..8bcd14b
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/chr/CHRQuery.java
@@ -0,0 +1,94 @@
+package org.simantics.scl.compiler.elaboration.chr;\r
+\r
+import org.simantics.scl.compiler.elaboration.chr.plan.PostCommitOp;\r
+import org.simantics.scl.compiler.elaboration.chr.plan.PreCommitOp;\r
+import org.simantics.scl.compiler.elaboration.chr.planning.QueryPlanningContext;\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.expressions.Expression;\r
+import org.simantics.scl.compiler.elaboration.expressions.Variable;\r
+import org.simantics.scl.compiler.elaboration.expressions.VariableProcedure;\r
+import org.simantics.scl.compiler.elaboration.expressions.printing.ExpressionToStringVisitor;\r
+import org.simantics.scl.compiler.errors.Locations;\r
+import org.simantics.scl.compiler.internal.parsing.Symbol;\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 CHRQuery extends Symbol {\r
+    public CHRLiteral[] literals;\r
+\r
+    public CHRQuery(CHRLiteral[] literals) {\r
+        this.literals = literals;\r
+    }\r
+\r
+    public void resolve(TranslationContext context) {\r
+        for(CHRLiteral literal : literals)\r
+            literal.resolve(context);\r
+    }\r
+\r
+    public void collectRefs(TObjectIntHashMap<Object> allRefs, TIntHashSet refs) {\r
+        for(CHRLiteral literal : literals)\r
+            literal.collectRefs(allRefs, refs);\r
+    }\r
+\r
+    public void checkType(TypingContext context) {\r
+        for(CHRLiteral literal : literals)\r
+            literal.checkType(context);\r
+    }\r
+    \r
+    public void collectVars(TObjectIntHashMap<Variable> allVars, TIntHashSet vars) {\r
+        for(CHRLiteral literal : literals)\r
+            literal.collectVars(allVars, vars);\r
+    }\r
+\r
+    public void forVariables(VariableProcedure procedure) {\r
+        for(CHRLiteral literal : literals)\r
+            literal.forVariables(procedure);\r
+    }\r
+\r
+    public void collectFreeVariables(THashSet<Variable> vars) {\r
+        for(CHRLiteral literal : literals)\r
+            literal.collectFreeVariables(vars);\r
+    }\r
+\r
+    public void setLocationDeep(long loc) {\r
+        if(location == Locations.NO_LOCATION) {\r
+            this.location = loc;\r
+            for(CHRLiteral literal : literals)\r
+                literal.setLocationDeep(loc);\r
+        }\r
+    }\r
+    \r
+    public void createQueryPlan(QueryPlanningContext context, Expression inputFact, int activeLiteralId) {\r
+        for(int i=0;i<literals.length;++i) {\r
+            CHRLiteral literal = literals[i];\r
+            if(i == activeLiteralId)\r
+                context.activate(literal, inputFact, i);\r
+            else\r
+                context.add(literal, i);\r
+        }\r
+        context.createQueryPlan();\r
+    }\r
+    \r
+    public void simplify(SimplificationContext context) {\r
+        for(CHRLiteral literal : literals)\r
+            literal.simplify(context);\r
+    }\r
+\r
+    public void createEnforcePlan(QueryPlanningContext context, int priority) {\r
+        context.addPlanOp(new PreCommitOp(location));\r
+        for(CHRLiteral literal : literals)\r
+            context.claim(context, literal);\r
+        context.addPlanOp(new PostCommitOp(location, priority));\r
+    }\r
+    \r
+    public String toString() {\r
+        StringBuilder b = new StringBuilder();\r
+        ExpressionToStringVisitor visitor = new ExpressionToStringVisitor(b);\r
+        visitor.visit(this);\r
+        return b.toString();\r
+    }\r
+}\r