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_BASIC_OPERATORPRECEDENCE_H 53