88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
//===--- iwyu_lexer_utils.h - clang-lexer utilities for iwyu --------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef INCLUDE_WHAT_YOU_USE_IWYU_LEXER_UTILS_H_
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#define INCLUDE_WHAT_YOU_USE_IWYU_LEXER_UTILS_H_
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#include <string> // for string
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#include <vector> // for vector
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#include "clang/Basic/SourceLocation.h"
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namespace clang {
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class Token;
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} // namespace clang
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namespace clang {
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class SourceManager;
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} // namespace clang
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namespace include_what_you_use {
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using std::string;
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using std::vector;
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// Interface to get character data from a SourceLocation. This allows
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// tests to avoid constructing a SourceManager yet still allow iwyu to
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// get the character data from SourceLocations.
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class CharacterDataGetterInterface {
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public:
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virtual ~CharacterDataGetterInterface() {}
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virtual const char* GetCharacterData(clang::SourceLocation loc) const = 0;
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};
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// Implementation of CharacterDataGetterInterface that uses a SourceManager.
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class SourceManagerCharacterDataGetter : public CharacterDataGetterInterface {
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public:
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explicit SourceManagerCharacterDataGetter(
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const clang::SourceManager& source_manager);
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virtual const char* GetCharacterData(clang::SourceLocation loc) const;
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private:
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const clang::SourceManager& source_manager_;
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};
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// Returns the source-code line from the current location until \n.
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string GetSourceTextUntilEndOfLine(
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clang::SourceLocation start_loc,
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const CharacterDataGetterInterface& character_data_getter);
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// Returns the location right *after* the first occurrence of needle
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// after start_loc, if any. (If none, returns an invalid source-loc.)
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// start_loc must be a valid source location.
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clang::SourceLocation GetLocationAfter(
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clang::SourceLocation start_loc, const string& needle,
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const CharacterDataGetterInterface& data_getter);
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// Returns the include-name as typed, including <>'s and ""'s.
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// Resolved computed includes first, so given
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// #define INC <stdio.h>
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// #include INC
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// If include_loc points to the second INC, we'll return '<stdio.h>'.
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string GetIncludeNameAsTyped(
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clang::SourceLocation include_loc,
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const CharacterDataGetterInterface& character_data_getter);
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// Given the range of an #if or #elif statement, determine the
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// symbols which are arguments to "defined". This allows iwyu to
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// treat these symbols as if #ifdef was used instead.
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vector<clang::Token> FindArgumentsToDefined(
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clang::SourceRange range,
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const CharacterDataGetterInterface& character_data_getter);
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// Get the text of a given token.
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string GetTokenText(const clang::Token& token,
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const CharacterDataGetterInterface& character_data_getter);
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} // namespace include_what_you_use
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#endif // INCLUDE_WHAT_YOU_USE_IWYU_LEXER_UTILS_H_
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