clang  14.0.0git
OperatorPrecedence.h
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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 
19 namespace 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.
25 namespace 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.
47 prec::Level getBinOpPrecedence(tok::TokenKind Kind, bool GreaterThanIsOperator,
48  bool CPlusPlus11);
49 
50 } // end namespace clang
51 
52 #endif // LLVM_CLANG_OPERATOR_PRECEDENCE_H
clang::prec::Comma
@ Comma
Definition: OperatorPrecedence.h:28
clang::prec::Conditional
@ Conditional
Definition: OperatorPrecedence.h:30
clang::prec::LogicalAnd
@ LogicalAnd
Definition: OperatorPrecedence.h:32
clang::prec::Additive
@ Additive
Definition: OperatorPrecedence.h:40
clang::prec::Assignment
@ Assignment
Definition: OperatorPrecedence.h:29
clang::prec::Multiplicative
@ Multiplicative
Definition: OperatorPrecedence.h:41
TokenKinds.h
clang::prec::Unknown
@ Unknown
Definition: OperatorPrecedence.h:27
clang::prec::PointerToMember
@ PointerToMember
Definition: OperatorPrecedence.h:42
clang::prec::And
@ And
Definition: OperatorPrecedence.h:35
clang::tok::TokenKind
TokenKind
Provides a simple uniform namespace for tokens from all C languages.
Definition: TokenKinds.h:25
clang::prec::Relational
@ Relational
Definition: OperatorPrecedence.h:37
clang::ObjCPropertyAttribute::Kind
Kind
Definition: DeclObjCCommon.h:22
clang
Definition: CalledOnceCheck.h:17
clang::prec::ExclusiveOr
@ ExclusiveOr
Definition: OperatorPrecedence.h:34
clang::prec::LogicalOr
@ LogicalOr
Definition: OperatorPrecedence.h:31
clang::prec::Level
Level
Definition: OperatorPrecedence.h:26
clang::prec::Equality
@ Equality
Definition: OperatorPrecedence.h:36
clang::getBinOpPrecedence
prec::Level getBinOpPrecedence(tok::TokenKind Kind, bool GreaterThanIsOperator, bool CPlusPlus11)
Return the precedence of the specified binary operator token.
Definition: OperatorPrecedence.cpp:17
clang::prec::InclusiveOr
@ InclusiveOr
Definition: OperatorPrecedence.h:33
clang::CPlusPlus11
@ CPlusPlus11
Definition: LangStandard.h:49
clang::prec::Shift
@ Shift
Definition: OperatorPrecedence.h:39
clang::prec::Spaceship
@ Spaceship
Definition: OperatorPrecedence.h:38