+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.EBind;\r
+import org.simantics.scl.compiler.elaboration.expressions.Expression;\r
+import org.simantics.scl.compiler.errors.Locations;\r
+\r
+public class BindStatement extends Statement {\r
+ public Expression pattern;\r
+ public Expression value;\r
+ \r
+ public BindStatement(Expression pattern, Expression value) {\r
+ this.pattern = pattern;\r
+ this.value = value;\r
+ }\r
+\r
+ @Override\r
+ public Expression toExpression(EnvironmentalContext context, boolean monadic, Expression in) {\r
+ //if(!monadic)\r
+ // context.getErrorLog().log(location, "Bind statements are allowed only in mdo-blocks.");\r
+ return new EBind(location, pattern, value, in);\r
+ }\r
+ \r
+ @Override\r
+ public void setLocationDeep(long loc) {\r
+ if(location == Locations.NO_LOCATION) {\r
+ location = loc;\r
+ pattern.setLocationDeep(loc);\r
+ value.setLocationDeep(loc);\r
+ }\r
+ }\r
+\r
+ @Override\r
+ public void resolvePattern(TranslationContext context) {\r
+ pattern = pattern.resolveAsPattern(context);\r
+ }\r
+ \r
+ @Override\r
+ public boolean mayBeRecursive() {\r
+ return false;\r
+ }\r
+ \r
+ @Override\r
+ public Statement replace(ReplaceContext context) {\r
+ return new BindStatement(pattern.replaceInPattern(context), value.replace(context));\r
+ }\r
+\r
+ @Override\r
+ public void accept(StatementVisitor visitor) {\r
+ visitor.visit(this);\r
+ }\r
+}\r