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