Package org.antlr.v4.codegen.model.decl

Examples of org.antlr.v4.codegen.model.decl.AltLabelStructDecl

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  @Override
  public List<SrcOp> action(ActionAST ast) { return list(new Action(this, ast)); }

  @Override
  public List<SrcOp> sempred(ActionAST ast) { return list(new SemPred(this, ast)); }
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    switch ( ebnf ) {
      case ANTLRParser.OPTIONAL :
        c = new OptionalBlock(this, ebnfRoot, alts);
        break;
      case ANTLRParser.CLOSURE :
        c = new StarBlock(this, ebnfRoot, alts);
        break;
      case ANTLRParser.POSITIVE_CLOSURE :
        c = new PlusBlock(this, ebnfRoot, alts);
        break;
    }
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    return c;
  }

  @Override
  public List<SrcOp> getLL1Test(IntervalSet look, GrammarAST blkAST) {
    return list(new TestSetInline(this, blkAST, look));
  }
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        }

        Set<Decl> decls = getDeclsForAllElements(alts);
        for (Pair<Integer, AltAST> pair : entry.getValue()) {
          Integer altNum = pair.a;
          altToContext[altNum] = new AltLabelStructDecl(factory, r, altNum, label);
          if (!altLabelCtxs.containsKey(label)) {
            altLabelCtxs.put(label, altToContext[altNum]);
          }

          // we know which ctx to put in, so do it directly
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  public void addContextDecl(String altLabel, Decl d) {
    CodeBlockForOuterMostAlt alt = d.getOuterMostAltCodeBlock();
    // if we found code blk and might be alt label, try to add to that label ctx
    if ( alt!=null && altLabelCtxs!=null ) {
//      System.out.println(d.name+" lives in alt "+alt.alt.altNum);
      AltLabelStructDecl altCtx = altLabelCtxs.get(altLabel);
      if ( altCtx!=null ) { // we have an alt ctx
//        System.out.println("ctx is "+ altCtx.name);
        altCtx.addDecl(d);
        return;
      }
    }
    ruleCtx.addDecl(d); // stick in overall rule's ctx
  }
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  }

  public void reduceBlocksToSets(GrammarAST root) {
    CommonTreeNodeStream nodes = new CommonTreeNodeStream(new GrammarASTAdaptor(), root);
    GrammarASTAdaptor adaptor = new GrammarASTAdaptor();
    BlockSetTransformer transformer = new BlockSetTransformer(nodes, g);
    transformer.setTreeAdaptor(adaptor);
    transformer.downup(root);
  }
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  public Map<Integer, ASSOC> altAssociativity = new HashMap<Integer, ASSOC>();

  public LeftRecursiveRuleAnalyzer(GrammarAST ruleAST,
                   Tool tool, String ruleName, String language)
  {
    super(new CommonTreeNodeStream(new GrammarASTAdaptor(ruleAST.token.getInputStream()), ruleAST));
    this.tool = tool;
    this.ruleName = ruleName;
    this.language = language;
    this.tokenStream = ruleAST.g.tokenStream;
    if (this.tokenStream == null) {
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        tool.log("grammar", "after: "+root.toStringTree());
  }

  public void reduceBlocksToSets(GrammarAST root) {
    CommonTreeNodeStream nodes = new CommonTreeNodeStream(new GrammarASTAdaptor(), root);
    GrammarASTAdaptor adaptor = new GrammarASTAdaptor();
    BlockSetTransformer transformer = new BlockSetTransformer(nodes, g);
    transformer.setTreeAdaptor(adaptor);
    transformer.downup(root);
  }
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     *
     *  Parameter must be a token.
     *  todo: do we want?
     */
    public void expandParameterizedLoops(GrammarAST root) {
        TreeVisitor v = new TreeVisitor(new GrammarASTAdaptor());
        v.visit(root, new TreeVisitorAction() {
            @Override
            public Object pre(Object t) {
                if ( ((GrammarAST)t).getType() == 3 ) {
                    return expandParameterizedLoop((GrammarAST)t);
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    /** Utility visitor that sets grammar ptr in each node */
  public static void setGrammarPtr(final Grammar g, GrammarAST tree) {
    if ( tree==null ) return;
    // ensure each node has pointer to surrounding grammar
    TreeVisitor v = new TreeVisitor(new GrammarASTAdaptor());
    v.visit(tree, new TreeVisitorAction() {
      @Override
      public Object pre(Object t) { ((GrammarAST)t).g = g; return t; }
      @Override
      public Object post(Object t) { return t; }
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Related Classes of org.antlr.v4.codegen.model.decl.AltLabelStructDecl

  • org.antlr.runtime.ANTLRFileStream
  • org.antlr.runtime.ANTLRStringStream
  • org.antlr.runtime.CharStream
  • org.antlr.runtime.CommonToken
  • org.antlr.runtime.Token
  • org.antlr.runtime.tree.CommonTree
  • org.antlr.runtime.tree.CommonTreeNodeStream
  • org.antlr.runtime.tree.Tree
  • org.antlr.runtime.tree.TreeVisitor
  • org.antlr.runtime.tree.TreeVisitorAction
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