Examples of org.antlr.v4.runtime.misc.NullUsageProcessor

org.antlr.v4.codegen.model.RuleFunction
A compile-time validator for correct usage of the {@link NotNull} and{@link Nullable} annotations.
The validation process checks the following items.
- Error: an element is annotated with both {@link NotNull} and {@link Nullable}.
- Error: an method which returns {@code void} is annotated with {@link NotNull} or {@link Nullable}.
- Error: an element with a primitive type is annotated with {@link Nullable}.
- Error: a parameter is annotated with {@link NotNull}, but the method overrides or implements a method where the parameter is annotated {@link Nullable}.
- Error: a method is annotated with {@link Nullable}, but the method overrides or implements a method that is annotated with {@link NotNull}.
- Warning: an element with a primitive type is annotated with {@link NotNull}.
- Warning: a parameter is annotated with {@link NotNull}, but the method overrides or implements a method where the parameter is not annotated.
- Warning: a method is annotated with {@link Nullable}, but the method overrides or implements a method that is not annotated.
In the future, the validation process may be updated to check the following additional items.
- Warning: a parameter is not annotated, but the method overrides or implements a method where the parameter is annotated with {@link NotNull} or {@link Nullable}.
- Warning: a method is not annotated, but the method overrides or implements a method that is annotated with with {@link NotNull} or {@link Nullable}.
@author Sam Harwell

  }


  @Override
  public List<SrcOp> set(GrammarAST setAST, GrammarAST labelAST, boolean invert) {
    MatchSet matchOp;
    if ( invert ) matchOp = new MatchNotSet(this, setAST);
    else matchOp = new MatchSet(this, setAST);
    if ( labelAST!=null ) {
      String label = labelAST.getText();
      RuleFunction rf = getCurrentRuleFunction();
      if ( labelAST.parent.getType() == ANTLRParser.PLUS_ASSIGN ) {

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    return new TokenListDecl(this, gen.getTarget().getListLabel(label));
  }


  @Override
  public List<SrcOp> set(GrammarAST setAST, GrammarAST labelAST, boolean invert) {
    MatchSet matchOp;
    if ( invert ) matchOp = new MatchNotSet(this, setAST);
    else matchOp = new MatchSet(this, setAST);
    if ( labelAST!=null ) {
      String label = labelAST.getText();
      RuleFunction rf = getCurrentRuleFunction();
      if ( labelAST.parent.getType() == ANTLRParser.PLUS_ASSIGN ) {
        defineImplicitLabel(setAST, matchOp);

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    return list(invokeOp, listLabelOp);
  }


  @Override
  public List<SrcOp> tokenRef(GrammarAST ID, GrammarAST labelAST, GrammarAST args) {
    MatchToken matchOp = new MatchToken(this, (TerminalAST) ID);
    if ( labelAST!=null ) {
      String label = labelAST.getText();
      RuleFunction rf = getCurrentRuleFunction();
      if ( labelAST.parent.getType() == ANTLRParser.PLUS_ASSIGN ) {
        // add Token _X and List<Token> X decls

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    int ebnf = 0;
    if ( ebnfRoot!=null ) ebnf = ebnfRoot.getType();
    Choice c = null;
    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 :

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    return new ParserFile(this, fileName);
  }


  @Override
  public Parser parser(ParserFile file) {
    return new Parser(this, file);
  }

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public class ParserFactory extends DefaultOutputModelFactory {
  public ParserFactory(CodeGenerator gen) { super(gen); }


  @Override
  public ParserFile parserFile(String fileName) {
    return new ParserFile(this, fileName);
  }

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        break;
      case ANTLRParser.CLOSURE :
        c = new StarBlock(this, ebnfRoot, alts);
        break;
      case ANTLRParser.POSITIVE_CLOSURE :
        c = new PlusBlock(this, ebnfRoot, alts);
        break;
    }
    return c;
  }

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  public RuleFunction rule(Rule r) {
    if ( r instanceof LeftRecursiveRule ) {
      return new LeftRecursiveRuleFunction(this, (LeftRecursiveRule)r);
    }
    else {
      RuleFunction rf = new RuleFunction(this, r);
      return rf;
    }
  }

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  @Override
  public List<SrcOp> tokenRef(GrammarAST ID, GrammarAST labelAST, GrammarAST args) {
    MatchToken matchOp = new MatchToken(this, (TerminalAST) ID);
    if ( labelAST!=null ) {
      String label = labelAST.getText();
      RuleFunction rf = getCurrentRuleFunction();
      if ( labelAST.parent.getType() == ANTLRParser.PLUS_ASSIGN ) {
        // add Token _X and List<Token> X decls
        defineImplicitLabel(ID, matchOp); // adds _X
        TokenListDecl l = getTokenListLabelDecl(label);
        rf.addContextDecl(ID.getAltLabel(), l);
      }
      else {
        Decl d = getTokenLabelDecl(label);
        matchOp.labels.add(d);
        rf.addContextDecl(ID.getAltLabel(), d);
      }


//      Decl d = getTokenLabelDecl(label);
//      ((MatchToken)matchOp).labels.add(d);
//      getCurrentRuleFunction().addContextDecl(ID.getAltLabel(), d);

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    MatchSet matchOp;
    if ( invert ) matchOp = new MatchNotSet(this, setAST);
    else matchOp = new MatchSet(this, setAST);
    if ( labelAST!=null ) {
      String label = labelAST.getText();
      RuleFunction rf = getCurrentRuleFunction();
      if ( labelAST.parent.getType() == ANTLRParser.PLUS_ASSIGN ) {
        defineImplicitLabel(setAST, matchOp);
        TokenListDecl l = getTokenListLabelDecl(label);
        rf.addContextDecl(setAST.getAltLabel(), l);
      }
      else {
        Decl d = getTokenLabelDecl(label);
        matchOp.labels.add(d);
        rf.addContextDecl(setAST.getAltLabel(), d);
      }
    }
    if ( controller.needsImplicitLabel(setAST, matchOp) ) defineImplicitLabel(setAST, matchOp);
    AddToLabelList listLabelOp = getAddToListOpIfListLabelPresent(matchOp, labelAST);
    return list(matchOp, listLabelOp);

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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

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