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_BASIC_OPERATORPRECEDENCE_H
53