1//===--- OperatorPrecedence.h - Operator precedence levels ------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8///
9/// \file
10/// Defines and computes precedence levels for binary/ternary operators.
11///
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_CLANG_BASIC_OPERATORPRECEDENCE_H
15#define LLVM_CLANG_BASIC_OPERATORPRECEDENCE_H
16
17#include "clang/Basic/TokenKinds.h"
18
19namespace clang {
20
21/// PrecedenceLevels - These are precedences for the binary/ternary
22/// operators in the C99 grammar. These have been named to relate
23/// with the C99 grammar productions. Low precedences numbers bind
24/// more weakly than high numbers.
25namespace prec {
26 enum Level {
27 Unknown = 0, // Not binary operator.
28 Comma = 1, // ,
29 Assignment = 2, // =, *=, /=, %=, +=, -=, <<=, >>=, &=, ^=, |=
30 Conditional = 3, // ?
31 LogicalOr = 4, // ||
32 LogicalAnd = 5, // &&
33 InclusiveOr = 6, // |
34 ExclusiveOr = 7, // ^
35 And = 8, // &
36 Equality = 9, // ==, !=
37 Relational = 10, // >=, <=, >, <
38 Spaceship = 11, // <=>
39 Shift = 12, // <<, >>
40 Additive = 13, // -, +
41 Multiplicative = 14, // *, /, %
42 PointerToMember = 15 // .*, ->*
43 };
44}
45
46/// Return the precedence of the specified binary operator token.
47prec::Level getBinOpPrecedence(tok::TokenKind Kind, bool GreaterThanIsOperator,
48 bool CPlusPlus11);
49
50} // end namespace clang
51
52#endif // LLVM_CLANG_OPERATOR_PRECEDENCE_H
53