Examples with Rule org.antlr.v4.tool.Rule used on opensource projects

Example 36 with Rule

use of org.antlr.v4.tool.Rule in project antlr4 by antlr.

the class UseDefAnalyzer method trackTokenRuleRefsInActions.

// side-effect: updates Alternative with refs in actions
public static void trackTokenRuleRefsInActions(Grammar g) {
    for (Rule r : g.rules.values()) {
        for (int i = 1; i <= r.numberOfAlts; i++) {
            Alternative alt = r.alt[i];
            for (ActionAST a : alt.actions) {
                ActionSniffer sniffer = new ActionSniffer(g, r, alt, a, a.token);
                sniffer.examineAction();
            }
        }
    }
}

Example 37 with Rule

use of org.antlr.v4.tool.Rule in project antlr4 by antlr.

the class UseDefAnalyzer method getRuleDependencies.

public static Map<Rule, Set<Rule>> getRuleDependencies(Grammar g, Collection<Rule> rules) {
    Map<Rule, Set<Rule>> dependencies = new HashMap<Rule, Set<Rule>>();
    for (Rule r : rules) {
        List<GrammarAST> tokenRefs = r.ast.getNodesWithType(ANTLRParser.TOKEN_REF);
        for (GrammarAST tref : tokenRefs) {
            Set<Rule> calls = dependencies.get(r);
            if (calls == null) {
                calls = new HashSet<Rule>();
                dependencies.put(r, calls);
            }
            calls.add(g.getRule(tref.getText()));
        }
    }
    return dependencies;
}

Example 38 with Rule

use of org.antlr.v4.tool.Rule in project antlr4 by antlr.

the class OutputModelController method buildLexerOutputModel.

public OutputModelObject buildLexerOutputModel(boolean header) {
    CodeGenerator gen = delegate.getGenerator();
    LexerFile file = lexerFile(gen.getRecognizerFileName(header));
    setRoot(file);
    file.lexer = lexer(file);
    Grammar g = delegate.getGrammar();
    for (Rule r : g.rules.values()) {
        buildLexerRuleActions(file.lexer, r);
    }
    return file;
}

Example 39 with Rule

use of org.antlr.v4.tool.Rule in project antlr4 by antlr.

the class OutputModelController method buildParserOutputModel.

/** Build a file with a parser containing rule functions. Use the
	 *  controller as factory in SourceGenTriggers so it triggers codegen
	 *  extensions too, not just the factory functions in this factory.
	 */
public OutputModelObject buildParserOutputModel(boolean header) {
    CodeGenerator gen = delegate.getGenerator();
    ParserFile file = parserFile(gen.getRecognizerFileName(header));
    setRoot(file);
    file.parser = parser(file);
    Grammar g = delegate.getGrammar();
    for (Rule r : g.rules.values()) {
        buildRuleFunction(file.parser, r);
    }
    return file;
}

Example 40 with Rule

use of org.antlr.v4.tool.Rule 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);
}