bundles/org.simantics.databoard/src/org/simantics/databoard/parser/ast/type/visitor/AstTypePrinter.java

   1 /*******************************************************************************
   2  *  Copyright (c) 2010 Association for Decentralized Information Management in
   3  *  Industry THTH ry.
   4  *  All rights reserved. This program and the accompanying materials
   5  *  are made available under the terms of the Eclipse Public License v1.0
   6  *  which accompanies this distribution, and is available at
   7  *  http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  *  Contributors:
  10  *      VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.databoard.parser.ast.type.visitor;
  13
  14 import org.simantics.databoard.parser.ast.type.AstArrayType;
  15 import org.simantics.databoard.parser.ast.type.AstComponent;
  16 import org.simantics.databoard.parser.ast.type.AstRecordType;
  17 import org.simantics.databoard.parser.ast.type.AstTupleType;
  18 import org.simantics.databoard.parser.ast.type.AstType;
  19 import org.simantics.databoard.parser.ast.type.AstTypeReference;
  20 import org.simantics.databoard.parser.ast.type.AstUnionType;
  21
  22 public class AstTypePrinter implements AstTypeVisitorVoid {
  23         StringBuilder b = new StringBuilder();
  24
  25         @Override
  26         public void visit(AstArrayType arrayType) {
  27                 arrayType.componentType.accept(this);
  28                 b.append("[]");
  29         }
  30
  31         @Override
  32         public void visit(AstRecordType recordType) {
  33                 b.append("{");
  34                 boolean first = true;
  35                 for(AstComponent component : recordType.components) {
  36                         if(first)
  37                                 first = false;
  38                         else
  39                                 b.append(", ");
  40                         b.append(component.name);
  41                         b.append(" : ");
  42                         component.type.accept(this);
  43                 }
  44                 b.append("}");
  45         }
  46
  47         @Override
  48         public void visit(AstTupleType tupleType) {
  49                 b.append("(");
  50                 boolean first = true;
  51                 for(AstType component : tupleType.components) {
  52                         if(first)
  53                                 first = false;
  54                         else
  55                                 b.append(", ");
  56                         component.accept(this);
  57                 }
  58                 b.append(")");
  59         }
  60
  61         @Override
  62         public void visit(AstTypeReference typeReference) {
  63                 b.append(typeReference.name);
  64                 if(!typeReference.parameters.isEmpty()) {
  65                         b.append("(");
  66                         boolean first = true;
  67                         for(AstType component : typeReference.parameters) {
  68                                 if(first)
  69                                         first = false;
  70                                 else
  71                                         b.append(", ");
  72                                 component.accept(this);
  73                         }
  74                         b.append(")");
  75                 }
  76         }
  77
  78         @Override
  79         public void visit(AstUnionType unionType) {
  80                 boolean first = true;
  81                 for(AstComponent component : unionType.components) {
  82                         if(first)
  83                                 first = false;
  84                         else
  85                                 b.append(" | ");
  86                         b.append(component.name);
  87                         b.append(' ');
  88                         component.type.accept(this);
  89                 }
  90         }
  91
  92         @Override
  93         public String toString() {
  94                 return b.toString();
  95         }
  96 }