Package org.antlr.runtime.tree

Examples of org.antlr.runtime.tree.TreeWizard.visit()

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                        tokens.delete(a.getTokenStartIndex(),
                                      a.getTokenStopIndex());
                    }
                }
            });
        wiz.visit(t, ANTLRv3Parser.LABEL_ASSIGN, // ^('=' id ^(RULE_REF [arg])), ...
            new TreeWizard.Visitor() {
                public void visit(Object t) {
                    CommonTree a = (CommonTree)t;
                    if ( !a.hasAncestor(ANTLRv3Parser.OPTIONS) ) { // avoid options
                        CommonTree child = (CommonTree)a.getChild(0);
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                        tokens.delete(a.token.getTokenIndex());     // kill "id="
                        tokens.delete(child.token.getTokenIndex());
                    }
                }
            });
        wiz.visit(t, ANTLRv3Parser.LIST_LABEL_ASSIGN, // ^('+=' id ^(RULE_REF [arg])), ...
            new TreeWizard.Visitor() {
              public void visit(Object t) {
                  CommonTree a = (CommonTree)t;
                  CommonTree child = (CommonTree)a.getChild(0);
                  tokens.delete(a.token.getTokenIndex());     // kill "id+="
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              }
            });


        // AST STUFF
        wiz.visit(t, ANTLRv3Parser.REWRITE,
            new TreeWizard.Visitor() {
              public void visit(Object t) {
                  CommonTree a = (CommonTree)t;
                  CommonTree child = (CommonTree)a.getChild(0);
                  int stop = child.getTokenStopIndex();
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                  }
                  tokens.delete(a.token.getTokenIndex(), stop);
                  killTrailingNewline(tokens, stop);
              }
            });
        wiz.visit(t, ANTLRv3Parser.ROOT,
           new TreeWizard.Visitor() {
               public void visit(Object t) {
                   tokens.delete(((CommonTree)t).token.getTokenIndex());
               }
           });
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           new TreeWizard.Visitor() {
               public void visit(Object t) {
                   tokens.delete(((CommonTree)t).token.getTokenIndex());
               }
           });
        wiz.visit(t, ANTLRv3Parser.BANG,
           new TreeWizard.Visitor() {
               public void visit(Object t) {
                   tokens.delete(((CommonTree)t).token.getTokenIndex());
               }
           });
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    public void rewrite(TreeAdaptor adaptor, CommonTree t, String[] tokenNames) throws Exception {
        TreeWizard wiz = new TreeWizard(adaptor, tokenNames);

        // ACTIONS STUFF
        wiz.visit(t, ANTLRv3Parser.ACTION,
           new TreeWizard.Visitor() {
               public void visit(Object t) { ACTION(tokens, (CommonTree)t); }
           });

        wiz.visit(t, ANTLRv3Parser.AT,  // ^('@' id ACTION) rule actions
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        wiz.visit(t, ANTLRv3Parser.ACTION,
           new TreeWizard.Visitor() {
               public void visit(Object t) { ACTION(tokens, (CommonTree)t); }
           });

        wiz.visit(t, ANTLRv3Parser.AT,  // ^('@' id ACTION) rule actions
            new TreeWizard.Visitor() {
              public void visit(Object t) {
                  CommonTree a = (CommonTree)t;
                  CommonTree action = null;
                  if ( a.getChildCount()==2 ) action = (CommonTree)a.getChild(1);
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                                    a.getTokenStopIndex());
                      killTrailingNewline(tokens, action.getTokenStopIndex());
                  }
              }
            });
        wiz.visit(t, ANTLRv3Parser.ARG, // wipe rule arguments
                  new TreeWizard.Visitor() {
              public void visit(Object t) {
                  CommonTree a = (CommonTree)t;
                  a = (CommonTree)a.getChild(0);
                  tokens.delete(a.token.getTokenIndex());
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                  a = (CommonTree)a.getChild(0);
                  tokens.delete(a.token.getTokenIndex());
                  killTrailingNewline(tokens, a.token.getTokenIndex());
              }
            });
        wiz.visit(t, ANTLRv3Parser.RET, // wipe rule return declarations
            new TreeWizard.Visitor() {
                public void visit(Object t) {
                    CommonTree a = (CommonTree)t;
                    CommonTree ret = (CommonTree)a.getChild(0);
                    tokens.delete(a.token.getTokenIndex(),
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                    CommonTree ret = (CommonTree)a.getChild(0);
                    tokens.delete(a.token.getTokenIndex(),
                                  ret.token.getTokenIndex());
                }
            });
        wiz.visit(t, ANTLRv3Parser.SEMPRED, // comment out semantic predicates
            new TreeWizard.Visitor() {
                public void visit(Object t) {
                    CommonTree a = (CommonTree)t;
                    tokens.replace(a.token.getTokenIndex(), "/*"+a.getText()+"*/");
                }
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