Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.scl.compiler / src / org / simantics / scl / compiler / elaboration / expressions / block / RuleStatement.java

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/block/RuleStatement.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/block/RuleStatement.java
new file mode 100644 (file)
index 0000000..620176d
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/block/RuleStatement.java
@@ -0,0 +1,54 @@
+package org.simantics.scl.compiler.elaboration.expressions.block;\r
+\r
+import org.simantics.scl.compiler.elaboration.contexts.EnvironmentalContext;\r
+import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;\r
+import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;\r
+import org.simantics.scl.compiler.elaboration.expressions.Expression;\r
+import org.simantics.scl.compiler.elaboration.query.Query;\r
+import org.simantics.scl.compiler.errors.Locations;\r
+\r
+public class RuleStatement extends Statement {\r
+\r
+    public Expression head;\r
+    public Query body;\r
+\r
+    public RuleStatement(Expression head, Query body) {\r
+        this.head = head;\r
+        this.body = body;\r
+    }\r
+\r
+    @Override\r
+    public Expression toExpression(EnvironmentalContext context, boolean monadic,\r
+            Expression in) {\r
+        throw new UnsupportedOperationException();\r
+    }\r
+    \r
+    @Override\r
+    public void setLocationDeep(long loc) {\r
+        if(location == Locations.NO_LOCATION) {\r
+            location = loc;\r
+            head.setLocationDeep(loc);\r
+            body.setLocationDeep(loc);\r
+        }\r
+    }\r
+    \r
+    @Override\r
+    public void resolvePattern(TranslationContext context) {\r
+        head = head.resolveAsPattern(context);\r
+    }\r
+    \r
+    @Override\r
+    public boolean mayBeRecursive() {\r
+        return true;\r
+    }\r
+    \r
+    @Override\r
+    public Statement replace(ReplaceContext context) {\r
+        return new RuleStatement(head.replaceInPattern(context), body.replace(context));\r
+    }\r
+    \r
+    @Override\r
+    public void accept(StatementVisitor visitor) {\r
+        visitor.visit(this);\r
+    }\r
+}\r