/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
 * Use of this file is governed by the BSD 3-clause license that
 * can be found in the LICENSE.txt file in the project root.
 */

#include "ProxyErrorListener.h"

using namespace antlr4;

void ProxyErrorListener::addErrorListener(ANTLRErrorListener* listener) {
    if (listener == nullptr) {
        throw "listener cannot be null.";
    }

    _delegates.insert(listener);
}

void ProxyErrorListener::removeErrorListener(ANTLRErrorListener* listener) {
    _delegates.erase(listener);
}

void ProxyErrorListener::removeErrorListeners() {
    _delegates.clear();
}

void ProxyErrorListener::syntaxError(Recognizer* recognizer, Token* offendingSymbol, size_t line,
    size_t charPositionInLine, const std::string& msg, std::exception_ptr e) {

    for (auto* listener : _delegates) {
        listener->syntaxError(recognizer, offendingSymbol, line, charPositionInLine, msg, e);
    }
}

void ProxyErrorListener::reportAmbiguity(Parser* recognizer, const dfa::DFA& dfa, size_t startIndex,
    size_t stopIndex, bool exact, const antlrcpp::BitSet& ambigAlts, atn::ATNConfigSet* configs) {
    for (auto* listener : _delegates) {
        listener->reportAmbiguity(
            recognizer, dfa, startIndex, stopIndex, exact, ambigAlts, configs);
    }
}

void ProxyErrorListener::reportAttemptingFullContext(Parser* recognizer, const dfa::DFA& dfa,
    size_t startIndex, size_t stopIndex, const antlrcpp::BitSet& conflictingAlts,
    atn::ATNConfigSet* configs) {
    for (auto* listener : _delegates) {
        listener->reportAttemptingFullContext(
            recognizer, dfa, startIndex, stopIndex, conflictingAlts, configs);
    }
}

void ProxyErrorListener::reportContextSensitivity(Parser* recognizer, const dfa::DFA& dfa,
    size_t startIndex, size_t stopIndex, size_t prediction, atn::ATNConfigSet* configs) {
    for (auto* listener : _delegates) {
        listener->reportContextSensitivity(
            recognizer, dfa, startIndex, stopIndex, prediction, configs);
    }
}
