blob: 5eb7b4252de1141ea76a86692712103864a45215 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
/* 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 "atn/EmptyPredictionContext.h"
using namespace antlr4::atn;
EmptyPredictionContext::EmptyPredictionContext()
: SingletonPredictionContext(nullptr, EMPTY_RETURN_STATE) {}
bool EmptyPredictionContext::isEmpty() const { return true; }
size_t EmptyPredictionContext::size() const { return 1; }
Ref<PredictionContext> EmptyPredictionContext::getParent(
size_t /*index*/) const {
return nullptr;
}
size_t EmptyPredictionContext::getReturnState(size_t /*index*/) const {
return returnState;
}
bool EmptyPredictionContext::operator==(const PredictionContext& o) const {
return this == &o;
}
std::string EmptyPredictionContext::toString() const { return "$"; }
|