X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Felaboration%2Fexpressions%2Fblock%2FRuleStatement.java;fp=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Felaboration%2Fexpressions%2Fblock%2FRuleStatement.java;h=620176d1187beb05cca0136a6f17971328e59b37;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

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
index 000000000..620176d11
--- /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;
+
+import org.simantics.scl.compiler.elaboration.contexts.EnvironmentalContext;
+import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;
+import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;
+import org.simantics.scl.compiler.elaboration.expressions.Expression;
+import org.simantics.scl.compiler.elaboration.query.Query;
+import org.simantics.scl.compiler.errors.Locations;
+
+public class RuleStatement extends Statement {
+
+    public Expression head;
+    public Query body;
+
+    public RuleStatement(Expression head, Query body) {
+        this.head = head;
+        this.body = body;
+    }
+
+    @Override
+    public Expression toExpression(EnvironmentalContext context, boolean monadic,
+            Expression in) {
+        throw new UnsupportedOperationException();
+    }
+    
+    @Override
+    public void setLocationDeep(long loc) {
+        if(location == Locations.NO_LOCATION) {
+            location = loc;
+            head.setLocationDeep(loc);
+            body.setLocationDeep(loc);
+        }
+    }
+    
+    @Override
+    public void resolvePattern(TranslationContext context) {
+        head = head.resolveAsPattern(context);
+    }
+    
+    @Override
+    public boolean mayBeRecursive() {
+        return true;
+    }
+    
+    @Override
+    public Statement replace(ReplaceContext context) {
+        return new RuleStatement(head.replaceInPattern(context), body.replace(context));
+    }
+    
+    @Override
+    public void accept(StatementVisitor visitor) {
+        visitor.visit(this);
+    }
+}