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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
//===-- ResourceScriptToken.h -----------------------------------*- C++-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===---------------------------------------------------------------------===//
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//
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// This declares the .rc script tokens and defines an interface for tokenizing
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// the input data. The list of available tokens is located at
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// ResourceScriptTokenList.def.
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//
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// Note that the tokenizer does not support preprocessor directives. The
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// preprocessor should do its work on the .rc file before running llvm-rc.
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//
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// As for now, it is possible to parse ASCII files only (the behavior on
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// UTF files might be undefined). However, it already consumes UTF-8 BOM, if
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// there is any. Thus, ASCII-compatible UTF-8 files are tokenized correctly.
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//
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// Ref: msdn.microsoft.com/en-us/library/windows/desktop/aa380599(v=vs.85).aspx
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//
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//===---------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVMRC_RESOURCESCRIPTTOKEN_H
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#define LLVM_TOOLS_LLVMRC_RESOURCESCRIPTTOKEN_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Error.h"
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#include <cstdint>
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#include <map>
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#include <string>
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#include <vector>
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namespace llvm {
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// A definition of a single resource script token. Each token has its kind
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// (declared in ResourceScriptTokenList) and holds a value - a reference
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// representation of the token.
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// RCToken does not claim ownership on its value. A memory buffer containing
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// the token value should be stored in a safe place and cannot be freed
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// nor reallocated.
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class RCToken {
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public:
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enum class Kind {
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#define TOKEN(Name) Name,
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#define SHORT_TOKEN(Name, Ch) Name,
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#include "ResourceScriptTokenList.def"
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};
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RCToken(RCToken::Kind RCTokenKind, StringRef Value);
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// Get an integer value of the integer token.
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uint32_t intValue() const;
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bool isLongInt() const;
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StringRef value() const;
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Kind kind() const;
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// Check if a token describes a binary operator.
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bool isBinaryOp() const;
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private:
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Kind TokenKind;
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StringRef TokenValue;
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};
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// Tokenize Input.
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// In case no error occurred, the return value contains
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// tokens in order they were in the input file.
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// In case of any error, the return value contains
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// a textual representation of error.
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//
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// Tokens returned by this function hold only references to the parts
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// of the Input. Memory buffer containing Input cannot be freed,
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// modified or reallocated.
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Expected<std::vector<RCToken>> tokenizeRC(StringRef Input);
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} // namespace llvm
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#endif
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