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

Example 16 with ActionAST

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

the class OutputFile method buildNamedActions.

public Map<String, Action> buildNamedActions(Grammar g) {
    Map<String, Action> namedActions = new HashMap<String, Action>();
    for (String name : g.namedActions.keySet()) {
        ActionAST ast = g.namedActions.get(name);
        namedActions.put(name, new Action(factory, ast));
    }
    return namedActions;
}

Example 17 with ActionAST

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

the class ActionTranslator method translateActionChunk.

public static List<ActionChunk> translateActionChunk(OutputModelFactory factory, RuleFunction rf, String action, ActionAST node) {
    Token tokenWithinAction = node.token;
    ActionTranslator translator = new ActionTranslator(factory, node);
    translator.rf = rf;
    factory.getGrammar().tool.log("action-translator", "translate " + action);
    String altLabel = node.getAltLabel();
    if (rf != null) {
        translator.nodeContext = rf.ruleCtx;
        if (altLabel != null)
            translator.nodeContext = rf.altLabelCtxs.get(altLabel);
    }
    ANTLRStringStream in = new ANTLRStringStream(action);
    in.setLine(tokenWithinAction.getLine());
    in.setCharPositionInLine(tokenWithinAction.getCharPositionInLine());
    ActionSplitter trigger = new ActionSplitter(in, translator);
    // forces eval, triggers listener methods
    trigger.getActionTokens();
    return translator.chunks;
}

Example 18 with ActionAST

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

the class ParserATNFactory method action.

/** Build what amounts to an epsilon transition with an action.
	 *  The action goes into ATN though it is ignored during prediction
	 *  if {@link ActionTransition#actionIndex actionIndex}{@code <0}.
	 */
@Override
public Handle action(ActionAST action) {
    //System.out.println("action: "+action);
    ATNState left = newState(action);
    ATNState right = newState(action);
    ActionTransition a = new ActionTransition(right, currentRule.index);
    left.addTransition(a);
    action.atnState = left;
    return new Handle(left, right);
}

Example 19 with ActionAST

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

the class RuleFunction method fillNamedActions.

public void fillNamedActions(OutputModelFactory factory, Rule r) {
    if (r.finallyAction != null) {
        finallyAction = new Action(factory, r.finallyAction);
    }
    namedActions = new HashMap<String, Action>();
    for (String name : r.namedActions.keySet()) {
        ActionAST ast = r.namedActions.get(name);
        namedActions.put(name, new Action(factory, ast));
    }
}