+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