clang
6.0.0
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#include "clang/Lex/PreprocessorLexer.h"
Public Types | |
using | conditional_iterator = SmallVectorImpl< PPConditionalInfo >::const_iterator |
Iterator that traverses the current stack of preprocessor conditional directives (#if/#ifdef/#ifndef). More... | |
Public Member Functions | |
PreprocessorLexer (const PreprocessorLexer &)=delete | |
PreprocessorLexer & | operator= (const PreprocessorLexer &)=delete |
void | LexIncludeFilename (Token &Result) |
After the preprocessor has parsed a #include, lex and (potentially) macro expand the filename. More... | |
void | setParsingPreprocessorDirective (bool f) |
Inform the lexer whether or not we are currently lexing a preprocessor directive. More... | |
bool | isLexingRawMode () const |
Return true if this lexer is in raw mode or not. More... | |
Preprocessor * | getPP () const |
Return the preprocessor object for this lexer. More... | |
FileID | getFileID () const |
unsigned | getInitialNumSLocEntries () const |
Number of SLocEntries before lexing the file. More... | |
const FileEntry * | getFileEntry () const |
getFileEntry - Return the FileEntry corresponding to this FileID. More... | |
conditional_iterator | conditional_begin () const |
conditional_iterator | conditional_end () const |
void | setConditionalLevels (ArrayRef< PPConditionalInfo > CL) |
Protected Member Functions | |
PreprocessorLexer () | |
PreprocessorLexer (Preprocessor *pp, FileID fid) | |
virtual | ~PreprocessorLexer ()=default |
virtual void | IndirectLex (Token &Result)=0 |
virtual SourceLocation | getSourceLocation ()=0 |
Return the source location for the next observable location. More... | |
void | pushConditionalLevel (SourceLocation DirectiveStart, bool WasSkipping, bool FoundNonSkip, bool FoundElse) |
pushConditionalLevel - When we enter a #if directive, this keeps track of what we are currently in for diagnostic emission (e.g. More... | |
void | pushConditionalLevel (const PPConditionalInfo &CI) |
bool | popConditionalLevel (PPConditionalInfo &CI) |
popConditionalLevel - Remove an entry off the top of the conditional stack, returning information about it. More... | |
PPConditionalInfo & | peekConditionalLevel () |
Return the top of the conditional stack. More... | |
unsigned | getConditionalStackDepth () const |
Protected Attributes | |
Preprocessor * | PP = nullptr |
const FileID | FID |
The SourceManager FileID corresponding to the file being lexed. More... | |
unsigned | InitialNumSLocEntries = 0 |
Number of SLocEntries before lexing the file. More... | |
bool | ParsingPreprocessorDirective = false |
True when parsing #XXX; turns '\n' into a tok::eod token. More... | |
bool | ParsingFilename = false |
True after #include; turns <xx> into a tok::angle_string_literal token. More... | |
bool | LexingRawMode = false |
True if in raw mode. More... | |
MultipleIncludeOpt | MIOpt |
A state machine that detects the #ifndef-wrapping a file idiom for the multiple-include optimization. More... | |
SmallVector< PPConditionalInfo, 4 > | ConditionalStack |
Information about the set of #if/#ifdef/#ifndef blocks we are currently in. More... | |
Friends | |
class | Preprocessor |
Definition at line 30 of file PreprocessorLexer.h.
using clang::PreprocessorLexer::conditional_iterator = SmallVectorImpl<PPConditionalInfo>::const_iterator |
Iterator that traverses the current stack of preprocessor conditional directives (#if/#ifdef/#ifndef).
Definition at line 170 of file PreprocessorLexer.h.
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inlineprotected |
Definition at line 79 of file PreprocessorLexer.h.
References getSourceLocation(), IndirectLex(), clang::Result, and ~PreprocessorLexer().
Referenced by getConditionalStackDepth().
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Definition at line 25 of file PreprocessorLexer.cpp.
References clang::Preprocessor::getSourceManager(), InitialNumSLocEntries, and clang::SourceManager::local_sloc_entry_size().
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protectedvirtualdefault |
Referenced by PreprocessorLexer().
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delete |
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inline |
Definition at line 172 of file PreprocessorLexer.h.
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inline |
Definition at line 176 of file PreprocessorLexer.h.
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inlineprotected |
Definition at line 124 of file PreprocessorLexer.h.
References LexIncludeFilename(), operator=(), and PreprocessorLexer().
const FileEntry * PreprocessorLexer::getFileEntry | ( | ) | const |
getFileEntry - Return the FileEntry corresponding to this FileID.
Like getFileID(), this only works for lexers with attached preprocessors.
Definition at line 57 of file PreprocessorLexer.cpp.
References clang::SourceManager::getFileEntryForID(), getFileID(), clang::Preprocessor::getSourceManager(), and PP.
Referenced by EvaluateHasIncludeNext(), getInitialNumSLocEntries(), clang::Preprocessor::HandlePragmaSystemHeader(), and clang::Preprocessor::LookupFile().
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Definition at line 152 of file PreprocessorLexer.h.
References FID.
Referenced by getFileEntry(), isTargetEnvironment(), and clang::Preprocessor::LookupFile().
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inline |
Number of SLocEntries before lexing the file.
Definition at line 159 of file PreprocessorLexer.h.
References getFileEntry(), and InitialNumSLocEntries.
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Return the preprocessor object for this lexer.
Definition at line 150 of file PreprocessorLexer.h.
References PP.
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protectedpure virtual |
Return the source location for the next observable location.
Implemented in clang::Lexer, and clang::PTHLexer.
Referenced by clang::Preprocessor::CheckEndOfDirective(), and PreprocessorLexer().
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protectedpure virtual |
Implemented in clang::PTHLexer.
Referenced by LexIncludeFilename(), and PreprocessorLexer().
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inline |
Return true if this lexer is in raw mode or not.
Definition at line 147 of file PreprocessorLexer.h.
References LexingRawMode.
Referenced by DecodeTrigraphChar(), FindConflictEnd(), clang::Lexer::findLocationAfterToken(), findPlaceholderEnd(), isEndOfBlockCommentWithEscapedNewLine(), maybeDiagnoseUTF8Homoglyph(), and clang::Lexer::ReadToEndOfLine().
void PreprocessorLexer::LexIncludeFilename | ( | Token & | FilenameTok | ) |
After the preprocessor has parsed a #include, lex and (potentially) macro expand the filename.
If the sequence parsed is not lexically legal, emit a diagnostic and return a result EOD token.
Definition at line 33 of file PreprocessorLexer.cpp.
References clang::Preprocessor::Diag(), clang::Token::getLocation(), IndirectLex(), clang::Token::is(), clang::Preprocessor::Lex(), LexingRawMode, ParsingFilename, ParsingPreprocessorDirective, and PP.
Referenced by EvaluateHasIncludeCommon(), and getConditionalStackDepth().
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delete |
Referenced by getConditionalStackDepth().
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inlineprotected |
Return the top of the conditional stack.
Definition at line 119 of file PreprocessorLexer.h.
Referenced by clang::Preprocessor::CheckEndOfDirective().
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inlineprotected |
popConditionalLevel - Remove an entry off the top of the conditional stack, returning information about it.
If the conditional stack is empty, this returns true and does not fill in the arguments.
Definition at line 110 of file PreprocessorLexer.h.
Referenced by clang::Preprocessor::CheckEndOfDirective().
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inlineprotected |
pushConditionalLevel - When we enter a #if directive, this keeps track of what we are currently in for diagnostic emission (e.g.
#if with missing #endif).
Definition at line 94 of file PreprocessorLexer.h.
References clang::PPConditionalInfo::FoundElse, clang::PPConditionalInfo::FoundNonSkip, clang::PPConditionalInfo::IfLoc, and clang::PPConditionalInfo::WasSkipping.
Referenced by clang::Preprocessor::CheckEndOfDirective().
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inlineprotected |
Definition at line 103 of file PreprocessorLexer.h.
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inline |
Definition at line 180 of file PreprocessorLexer.h.
Referenced by clang::Preprocessor::EnterMainSourceFile().
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inline |
Inform the lexer whether or not we are currently lexing a preprocessor directive.
Definition at line 142 of file PreprocessorLexer.h.
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friend |
Definition at line 34 of file PreprocessorLexer.h.
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protected |
Information about the set of #if/#ifdef/#ifndef blocks we are currently in.
Definition at line 77 of file PreprocessorLexer.h.
Referenced by clang::PTHLexer::Lex(), and clang::Lexer::ReadToEndOfLine().
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The SourceManager FileID corresponding to the file being lexed.
Definition at line 40 of file PreprocessorLexer.h.
Referenced by getFileID(), clang::Lexer::getImmediateMacroName(), and makeRangeFromFileLocs().
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protected |
Number of SLocEntries before lexing the file.
Definition at line 43 of file PreprocessorLexer.h.
Referenced by getInitialNumSLocEntries(), and PreprocessorLexer().
True if in raw mode.
Raw mode disables interpretation of tokens and is a far faster mode to lex in than non-raw-mode. This flag:
Note that in raw mode that the PP pointer may be null.
Definition at line 69 of file PreprocessorLexer.h.
Referenced by clang::Preprocessor::CheckEndOfDirective(), findPlaceholderEnd(), clang::Preprocessor::HandleMicrosoftCommentPaste(), isLexingRawMode(), clang::PTHLexer::Lex(), clang::Lexer::Lexer(), LexIncludeFilename(), maybeDiagnoseUTF8Homoglyph(), and clang::Lexer::ReadToEndOfLine().
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protected |
A state machine that detects the #ifndef-wrapping a file idiom for the multiple-include optimization.
Definition at line 73 of file PreprocessorLexer.h.
Referenced by findPlaceholderEnd(), isTrivialSingleTokenExpansion(), and clang::PTHLexer::Lex().
True after #include; turns <xx> into a tok::angle_string_literal token.
Definition at line 54 of file PreprocessorLexer.h.
Referenced by clang::PTHLexer::DiscardToEndOfLine(), findPlaceholderEnd(), LexIncludeFilename(), and clang::Lexer::ReadToEndOfLine().
True when parsing #XXX; turns '\n' into a tok::eod token.
Definition at line 50 of file PreprocessorLexer.h.
Referenced by clang::Preprocessor::CheckEndOfDirective(), clang::Lexer::Create_PragmaLexer(), clang::PTHLexer::DiscardToEndOfLine(), findPlaceholderEnd(), clang::Preprocessor::HandleMicrosoftCommentPaste(), clang::PTHLexer::Lex(), LexIncludeFilename(), and clang::Lexer::ReadToEndOfLine().
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protected |
Definition at line 37 of file PreprocessorLexer.h.
Referenced by clang::PTHManager::CreateLexer(), getFileEntry(), getPP(), clang::PTHLexer::Lex(), LexIncludeFilename(), and clang::Lexer::resetExtendedTokenMode().