Examples with GrammarAST org.antlr.v4.tool.ast.GrammarAST used on opensource projects

Example 21 with GrammarAST

use of org.antlr.v4.tool.ast.GrammarAST in project antlr4 by antlr.

the class ParserFactory method tokenRef.

@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
            // adds _X
            defineImplicitLabel(ID, matchOp);
            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);
    //			if ( labelAST.parent.getType() == ANTLRParser.PLUS_ASSIGN ) {
    //				TokenListDecl l = getTokenListLabelDecl(label);
    //				getCurrentRuleFunction().addContextDecl(ID.getAltLabel(), l);
    //			}
    }
    if (controller.needsImplicitLabel(ID, matchOp))
        defineImplicitLabel(ID, matchOp);
    AddToLabelList listLabelOp = getAddToListOpIfListLabelPresent(matchOp, labelAST);
    return list(matchOp, listLabelOp);
}

Example 22 with GrammarAST

use of org.antlr.v4.tool.ast.GrammarAST in project antlr4 by antlr.

the class ParserFactory method ruleRef.

@Override
public List<SrcOp> ruleRef(GrammarAST ID, GrammarAST label, GrammarAST args) {
    InvokeRule invokeOp = new InvokeRule(this, ID, label);
    // If no manual label and action refs as token/rule not label, we need to define implicit label
    if (controller.needsImplicitLabel(ID, invokeOp))
        defineImplicitLabel(ID, invokeOp);
    AddToLabelList listLabelOp = getAddToListOpIfListLabelPresent(invokeOp, label);
    return list(invokeOp, listLabelOp);
}

Example 23 with GrammarAST

use of org.antlr.v4.tool.ast.GrammarAST in project antlr4 by antlr.

the class AttributeChecks method checkAllAttributeExpressions.

public static void checkAllAttributeExpressions(Grammar g) {
    for (ActionAST act : g.namedActions.values()) {
        AttributeChecks checker = new AttributeChecks(g, null, null, act, act.token);
        checker.examineAction();
    }
    for (Rule r : g.rules.values()) {
        for (ActionAST a : r.namedActions.values()) {
            AttributeChecks checker = new AttributeChecks(g, r, null, a, a.token);
            checker.examineAction();
        }
        for (int i = 1; i <= r.numberOfAlts; i++) {
            Alternative alt = r.alt[i];
            for (ActionAST a : alt.actions) {
                AttributeChecks checker = new AttributeChecks(g, r, alt, a, a.token);
                checker.examineAction();
            }
        }
        for (GrammarAST e : r.exceptions) {
            ActionAST a = (ActionAST) e.getChild(1);
            AttributeChecks checker = new AttributeChecks(g, r, null, a, a.token);
            checker.examineAction();
        }
        if (r.finallyAction != null) {
            AttributeChecks checker = new AttributeChecks(g, r, null, r.finallyAction, r.finallyAction.token);
            checker.examineAction();
        }
    }
}

Example 24 with GrammarAST

use of org.antlr.v4.tool.ast.GrammarAST in project antlr4 by antlr.

the class BasicSemanticChecks method enterLabeledLexerElement.

@Override
protected void enterLabeledLexerElement(GrammarAST tree) {
    Token label = ((GrammarAST) tree.getChild(0)).getToken();
    g.tool.errMgr.grammarError(ErrorType.V3_LEXER_LABEL, g.fileName, label, label.getText());
}

Example 25 with GrammarAST

use of org.antlr.v4.tool.ast.GrammarAST in project antlr4 by antlr.

the class BasicSemanticChecks method checkElementOptions.

/** Check option is appropriate for elem; parent of ID is ELEMENT_OPTIONS */
boolean checkElementOptions(GrammarASTWithOptions elem, GrammarAST ID, GrammarAST valueAST) {
    if (checkAssocElementOption && ID != null && "assoc".equals(ID.getText())) {
        if (elem.getType() != ANTLRParser.ALT) {
            Token optionID = ID.token;
            String fileName = optionID.getInputStream().getSourceName();
            g.tool.errMgr.grammarError(ErrorType.UNRECOGNIZED_ASSOC_OPTION, fileName, optionID, currentRuleName);
        }
    }
    if (elem instanceof RuleRefAST) {
        return checkRuleRefOptions((RuleRefAST) elem, ID, valueAST);
    }
    if (elem instanceof TerminalAST) {
        return checkTokenOptions((TerminalAST) elem, ID, valueAST);
    }
    if (elem.getType() == ANTLRParser.ACTION) {
        return false;
    }
    if (elem.getType() == ANTLRParser.SEMPRED) {
        Token optionID = ID.token;
        String fileName = optionID.getInputStream().getSourceName();
        if (valueAST != null && !Grammar.semPredOptions.contains(optionID.getText())) {
            g.tool.errMgr.grammarError(ErrorType.ILLEGAL_OPTION, fileName, optionID, optionID.getText());
            return false;
        }
    }
    return false;
}