X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Felaboration%2Fchr%2Fplanning%2Fitems%2FCheckPrePlanItem.java;fp=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Felaboration%2Fchr%2Fplanning%2Fitems%2FCheckPrePlanItem.java;h=b54a214ca6f2d3adb530d55983d9890f51ede595;hb=a8758de5bc19e5adb3f618d3038743a164f09912;hp=0000000000000000000000000000000000000000;hpb=12d9af17384d960b75d58c3935d2b7b46d93e87b;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/chr/planning/items/CheckPrePlanItem.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/chr/planning/items/CheckPrePlanItem.java
new file mode 100644
index 000000000..b54a214ca
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/chr/planning/items/CheckPrePlanItem.java
@@ -0,0 +1,41 @@
+package org.simantics.scl.compiler.elaboration.chr.planning.items;
+
+import org.simantics.scl.compiler.elaboration.chr.plan.CheckOp;
+import org.simantics.scl.compiler.elaboration.chr.planning.PrePlanItem;
+import org.simantics.scl.compiler.elaboration.chr.planning.QueryPlanningContext;
+import org.simantics.scl.compiler.elaboration.expressions.Expression;
+
+import gnu.trove.set.hash.TIntHashSet;
+
+public class CheckPrePlanItem extends PrePlanItem {
+    public Expression condition;
+    public TIntHashSet variableSet;
+
+    public CheckPrePlanItem(Expression condition, TIntHashSet variableSet, int secondaryPriority) {
+        super(secondaryPriority);
+        this.variableSet = variableSet;
+        this.condition = condition;
+        if(variableSet.isEmpty())
+            primaryPriority = 0.0;
+    }
+
+    @Override
+    public void initializeListeners(QueryPlanningContext context) {
+        context.listen(variableSet, this);
+    }
+
+    @Override
+    public void variableSolved(QueryPlanningContext context, int variableId) {
+        variableSet.remove(variableId);
+        if(variableSet.isEmpty()) {
+            primaryPriority = 0.0;
+            context.priorityQueue.adjust(this);
+        }
+    }
+    
+    @Override
+    public void generate(QueryPlanningContext context) {
+        context.addPlanOp(new CheckOp(location, condition));
+        context.bind(variableSet);
+    }
+}