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Showing content from https://clang.llvm.org/doxygen/VariadicMacroSupport_8h_source.html below:

clang: include/clang/Lex/VariadicMacroSupport.h Source File

15#ifndef LLVM_CLANG_LEX_VARIADICMACROSUPPORT_H 16#define LLVM_CLANG_LEX_VARIADICMACROSUPPORT_H 19#include "llvm/ADT/SmallVector.h" 37

: PP(

), Ident__VA_ARGS__(PP.Ident__VA_ARGS__),

38

Ident__VA_OPT__(PP.Ident__VA_OPT__) {

39

assert(Ident__VA_ARGS__->

isPoisoned

() &&

"__VA_ARGS__ should be poisoned " 40 "outside an ISO C/C++ variadic " 41 "macro definition!"

);

42

assert(Ident__VA_OPT__->

isPoisoned

() &&

"__VA_OPT__ should be poisoned!"

);

75

: Ident__VA_OPT__(PP.Ident__VA_OPT__) {}

78 return

Ident__VA_OPT__ &&

.getIdentifierInfo() == Ident__VA_OPT__;

83 bool isInVAOpt

()

const

{

return

UnmatchedOpeningParens.size(); }

87

assert(!

isInVAOpt

() &&

"Must NOT be within VAOPT context to call this"

);

88

UnmatchedOpeningParens.push_back(LParenLoc);

93

assert(

isInVAOpt

() &&

"Must be within VAOPT context to call this"

);

94 return

UnmatchedOpeningParens.back();

101

assert(

isInVAOpt

() &&

"Must be within VAOPT context to call this"

);

102

UnmatchedOpeningParens.pop_back();

103 return

!UnmatchedOpeningParens.size();

108

assert(

isInVAOpt

() &&

"Must be within VAOPT context to call this"

);

109

UnmatchedOpeningParens.push_back(LParenLoc);

113 bool isAtTopLevel

()

const

{

return

UnmatchedOpeningParens.size() == 1; }

120 Token

SyntheticEOFToken;

130 int

NumOfTokensPriorToVAOpt = -1;

132

LLVM_PREFERRED_TYPE(

bool

)

133 unsigned

LeadingSpaceForStringifiedToken : 1;

135

LLVM_PREFERRED_TYPE(

bool

)

136 unsigned

StringifyBefore : 1;

137

LLVM_PREFERRED_TYPE(

bool

)

138 unsigned

CharifyBefore : 1;

139

LLVM_PREFERRED_TYPE(

bool

)

140 unsigned

BeginsWithPlaceholder : 1;

141

LLVM_PREFERRED_TYPE(

bool

)

142 unsigned

EndsWithPlaceholder : 1;

144 bool

hasStringifyBefore()

const

{

146 "Must only be called if the state has not been reset"

);

147 return

StringifyBefore;

150 bool

isReset()

const

{

151 return

NumOfTokensPriorToVAOpt == -1 ||

158

StringifyBefore(

false

), CharifyBefore(

false

159

BeginsWithPlaceholder(

false

), EndsWithPlaceholder(

false

) {

161

SyntheticEOFToken.

setKind

(tok::eof);

166

NumOfTokensPriorToVAOpt = -1;

167

LeadingSpaceForStringifiedToken =

false

;

168

StringifyBefore =

false

;

169

CharifyBefore =

false

;

170

BeginsWithPlaceholder =

false

;

171

EndsWithPlaceholder =

false

;

177 const bool

IsHashAt) {

179

StringifyBefore = !IsHashAt;

180

CharifyBefore = IsHashAt;

181

LeadingSpaceForStringifiedToken = HasLeadingSpace;

187

EndsWithPlaceholder =

true

;

193 "Must only be called if the state has not been reset"

);

194 return

BeginsWithPlaceholder;

198 "Must only be called if the state has not been reset"

);

199 return

EndsWithPlaceholder;

204 "Must only be called if the state has not been reset"

);

205 return

CharifyBefore;

213 "Must only be called if the state has not been reset"

);

214 return

NumOfTokensPriorToVAOpt;

218

assert(hasStringifyBefore() &&

219 "Must only be called if this has been marked for stringification"

);

220 return

LeadingSpaceForStringifiedToken;

224 const unsigned int

NumPriorTokens) {

225

assert(VAOptLoc.

isFileID

() &&

"Must not come from a macro expansion"

);

226

assert(isReset() &&

"Must only be called if the state has been reset"

);

228

this->VAOptLoc = VAOptLoc;

229

NumOfTokensPriorToVAOpt = NumPriorTokens;

230

assert(NumOfTokensPriorToVAOpt > -1 &&

231 "Too many prior tokens"

);

236 "Must only be called if the state has not been reset"

);

237

assert(VAOptLoc.

isValid

() &&

"__VA_OPT__ location must be valid"

);

Defines the clang::Preprocessor interface.

One of these records is kept for each identifier that is lexed.

void setIsPoisoned(bool Value=true)

setIsPoisoned - Mark this identifier as poisoned.

bool isPoisoned() const

Return true if this token has been poisoned.

Engages in a tight little dance with the lexer to efficiently preprocess tokens.

Encodes a location in the source.

bool isValid() const

Return true if this is a valid SourceLocation object.

Token - This structure provides full information about a lexed token.

void setKind(tok::TokenKind K)

void startToken()

Reset all flags to cleared.

A class for tracking whether we're inside a VA_OPT during a traversal of the tokens of a variadic mac...

VAOptDefinitionContext(Preprocessor &PP)

SourceLocation getUnmatchedOpeningParenLoc() const

bool isInVAOpt() const

Returns true if we have seen the VA_OPT and '(' but before having seen the matching ')'.

bool isVAOptToken(const Token &T) const

void sawOpeningParen(SourceLocation LParenLoc)

Call this function each time an lparen is seen.

bool isAtTopLevel() const

Are we at the top level within the VA_OPT?

bool sawClosingParen()

Call this function each time an rparen is seen.

void sawVAOptFollowedByOpeningParens(const SourceLocation LParenLoc)

Call this function as soon as you see VA_OPT and '('.

A class for tracking whether we're inside a VA_OPT during a traversal of the tokens of a macro during...

VAOptExpansionContext(Preprocessor &PP)

void hasPlaceholderAfterHashhashAtStart()

void sawHashOrHashAtBefore(const bool HasLeadingSpace, const bool IsHashAt)

SourceLocation getVAOptLoc() const

unsigned int getNumberOfTokensPriorToVAOpt() const

bool getLeadingSpaceForStringifiedToken() const

bool hasStringifyOrCharifyBefore() const

bool hasCharifyBefore() const

void hasPlaceholderBeforeRParen()

const Token & getEOFTok() const

bool beginsWithPlaceholder() const

bool endsWithPlaceholder() const

void sawVAOptFollowedByOpeningParens(const SourceLocation VAOptLoc, const unsigned int NumPriorTokens)

An RAII class that tracks when the Preprocessor starts and stops lexing the definition of a (ISO C/C+...

void exitScope()

Client code should call this function as soon as the Preprocessor has either completed lexing the mac...

void enterScope()

Client code should call this function just before the Preprocessor is about to Lex tokens from the de...

~VariadicMacroScopeGuard()

VariadicMacroScopeGuard(const Preprocessor &P)

The JSON file list parser is used to communicate input to InstallAPI.

const FunctionProtoType * T

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