src/monkey/seaspider/org/gnunet/seaspider/parser/visitors/GNUnetDepthFirstVisitor.java

   1 package org.gnunet.seaspider.parser.visitors;
   2 import java.util.ArrayList;
   3
   4 import org.gnunet.seaspider.parser.LineNumberInfo;
   5 import org.gnunet.seaspider.parser.nodes.AssignmentOperator;
   6 import org.gnunet.seaspider.parser.nodes.CompoundStatement;
   7 import org.gnunet.seaspider.parser.nodes.Expression;
   8
   9
  10 public class GNUnetDepthFirstVisitor extends DepthFirstVisitor {
  11         /* Inner utilities classes */
  12         private class Scope {
  13                 public Scope(int scopeStart, int scopeEnd) {
  14                         this.scopeStart = scopeStart;
  15                         this.scopeEnd = scopeEnd;
  16                 }
  17                 public int scopeStart;
  18                 public int scopeEnd;
  19         }
  20
  21         private class ExpressionEntry {
  22                 public ArrayList<ExpressionEntry> expressionComponents= new ArrayList<ExpressionEntry>();
  23                 public LineNumberInfo lineNumberInfo;
  24                 public Scope expressionScope;
  25         }
  26
  27         /* Fields */
  28         private int current_endline;
  29         private Scope currentScope;
  30         private ExpressionEntry currentExpression;
  31
  32         /* Methods */
  33         /**
  34     * f0 -> ConditionalExpression()
  35     * f1 -> [ AssignmentOperator() Expression() ]
  36     */
  37         public void visit(Expression n) {
  38                 currentExpression = new ExpressionEntry();
  39                 currentExpression.lineNumberInfo = LineNumberInfo.get(n);
  40                 currentExpression.expressionScope = currentScope;
  41
  42                 n.f0.accept(this);
  43                 n.f1.accept(this);
  44         }
  45
  46         public void visit(AssignmentOperator n) {
  47             n.f0.accept(this);
  48         }
  49
  50         /**
  51     * <PRE>
  52     * f0 -> "{"
  53     * f1 -> ( LocalVariableDeclaration() | Statement() )*
  54     * f2 -> "}"
  55     * </PRE>
  56     */
  57     public void visit(CompoundStatement n) {
  58         currentScope.scopeStart = n.f0.endLine;
  59         currentScope.scopeEnd = n.f2.endLine;
  60         n.f0.accept(this);
  61         n.f1.accept(this);
  62         n.f2.accept(this);
  63     }
  64 }