bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/annotations/AnnotationUtils.java

   1 package org.simantics.scl.compiler.elaboration.expressions.annotations;
   2
   3 import org.simantics.scl.compiler.constants.StringConstant;
   4 import org.simantics.scl.compiler.elaboration.expressions.ELiteral;
   5 import org.simantics.scl.compiler.elaboration.expressions.EStringLiteral;
   6 import org.simantics.scl.compiler.elaboration.expressions.EVar;
   7 import org.simantics.scl.compiler.elaboration.expressions.Expression;
   8
   9 public class AnnotationUtils {
  10     public static String extractString(Expression expression) {
  11         if(expression instanceof EVar)
  12             return ((EVar)expression).name;
  13         else if(expression instanceof EStringLiteral) {
  14             EStringLiteral literal = (EStringLiteral)expression;
  15             if(literal.strings.length == 1)
  16                 return literal.strings[0];
  17         }
  18         else if(expression instanceof ELiteral) {
  19             ELiteral literal = (ELiteral)expression;
  20             if(literal.getValue() instanceof StringConstant) {
  21                 StringConstant constant = (StringConstant)literal.getValue();
  22                 return constant.getValue();
  23             }
  24         }
  25         return null;
  26     }
  27 }