| //===--- OperatorPrecedence.h - Operator precedence levels ------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// \brief Defines and computes precedence levels for binary/ternary operators. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_BASIC_OPERATORPRECEDENCE_H |
| #define LLVM_CLANG_BASIC_OPERATORPRECEDENCE_H |
| |
| #include "clang/Basic/TokenKinds.h" |
| |
| namespace clang { |
| |
| /// PrecedenceLevels - These are precedences for the binary/ternary |
| /// operators in the C99 grammar. These have been named to relate |
| /// with the C99 grammar productions. Low precedences numbers bind |
| /// more weakly than high numbers. |
| namespace prec { |
| enum Level { |
| Unknown = 0, // Not binary operator. |
| Comma = 1, // , |
| Assignment = 2, // =, *=, /=, %=, +=, -=, <<=, >>=, &=, ^=, |= |
| Conditional = 3, // ? |
| LogicalOr = 4, // || |
| LogicalAnd = 5, // && |
| InclusiveOr = 6, // | |
| ExclusiveOr = 7, // ^ |
| And = 8, // & |
| Equality = 9, // ==, != |
| Relational = 10, // >=, <=, >, < |
| Shift = 11, // <<, >> |
| Additive = 12, // -, + |
| Multiplicative = 13, // *, /, % |
| PointerToMember = 14 // .*, ->* |
| }; |
| } |
| |
| /// \brief Return the precedence of the specified binary operator token. |
| prec::Level getBinOpPrecedence(tok::TokenKind Kind, bool GreaterThanIsOperator, |
| bool CPlusPlus11); |
| |
| } // end namespace clang |
| |
| #endif // LLVM_CLANG_OPERATOR_PRECEDENCE_H |
