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Showing content from https://clang.llvm.org/doxygen/OSLog_8cpp_source.html below:

clang: lib/AST/OSLog.cpp Source File

12using namespace clang

;

18class

OSLogFormatStringHandler

22 const Expr

*

E

=

nullptr

;

23

std::optional<OSLogBufferItem::Kind>

Kind

;

24

std::optional<unsigned>

Size

;

25

std::optional<const Expr *> Count;

26

std::optional<const Expr *> Precision;

27

std::optional<const Expr *> FieldWidth;

28 unsigned char

Flags = 0;

38 return

OSLogBufferItem::StringKind;

40 return

OSLogBufferItem::WideStringKind;

42 return

OSLogBufferItem::PointerKind;

44 return

OSLogBufferItem::ObjCObjKind;

46 return

OSLogBufferItem::ErrnoKind;

48 return

OSLogBufferItem::ScalarKind;

55

ArgsData.reserve(Args.size());

59 const char

*StartSpecifier,

unsigned

SpecifierLen,

61 if

(!FS.consumesDataArgument() &&

62

FS.getConversionSpecifier().getKind() !=

66

ArgsData.emplace_back();

67 unsigned

ArgIndex = FS.getArgIndex();

68 if

(ArgIndex < Args.size())

69

ArgsData.back().E = Args[ArgIndex];

72

ArgsData.back().Kind =

getKind

(FS.getConversionSpecifier().getKind());

73 if

(ArgsData.back().Kind != OSLogBufferItem::ErrnoKind &&

80 switch

(FS.getConversionSpecifier().getKind()) {

83 auto

&precision = FS.getPrecision();

84 switch

(precision.getHowSpecified()) {

88

ArgsData.back().Size = precision.getConstantAmount();

91

ArgsData.back().Count = Args[precision.getArgIndex()];

99 auto

&precision = FS.getPrecision();

100 switch

(precision.getHowSpecified()) {

104

ArgsData.back().Size = precision.getConstantAmount();

107

ArgsData.back().Count = Args[precision.getArgIndex()];

115 if

(FS.getPrecision().hasDataArgument()) {

116

ArgsData.back().Precision = Args[FS.getPrecision().getArgIndex()];

120 if

(FS.getFieldWidth().hasDataArgument()) {

121

ArgsData.back().FieldWidth = Args[FS.getFieldWidth().getArgIndex()];

124 if

(FS.isSensitive())

125

ArgsData.back().Flags |= OSLogBufferItem::IsSensitive;

126 else if

(FS.isPrivate())

127

ArgsData.back().Flags |= OSLogBufferItem::IsPrivate;

128 else if

(FS.isPublic())

129

ArgsData.back().Flags |= OSLogBufferItem::IsPublic;

131

ArgsData.back().MaskType = FS.getMaskType();

136

Layout.

Items

.clear();

137 for

(

auto

&

Data

: ArgsData) {

138 if

(!

Data

.MaskType.empty()) {

140

Layout.

Items

.emplace_back(OSLogBufferItem::MaskKind,

nullptr

,

141

Size, 0,

Data

.MaskType);

144 if

(

Data

.FieldWidth) {

146

Layout.

Items

.emplace_back(OSLogBufferItem::ScalarKind, *

Data

.FieldWidth,

149 if

(

Data

.Precision) {

151

Layout.

Items

.emplace_back(OSLogBufferItem::ScalarKind, *

Data

.Precision,

157

Layout.

Items

.emplace_back(OSLogBufferItem::CountKind, *

Data

.Count, Size,

165 if

(*

Data

.Kind == OSLogBufferItem::ErrnoKind)

172

Layout.

Items

.emplace_back(OSLogBufferItem::ScalarKind,

Data

.E, Size,

184 const Expr

*StringArg;

186 switch

(

E

->getBuiltinCallee()) {

187 case

Builtin::BI__builtin_os_log_format_buffer_size:

188

assert(

E

->getNumArgs() >= 1 &&

189 "__builtin_os_log_format_buffer_size takes at least 1 argument"

);

190

StringArg =

E

->getArg(0);

191

VarArgs = Args.slice(1);

193 case

Builtin::BI__builtin_os_log_format:

194

assert(

E

->getNumArgs() >= 2 &&

195 "__builtin_os_log_format takes at least 2 arguments"

);

196

StringArg =

E

->getArg(1);

197

VarArgs = Args.slice(2);

200

llvm_unreachable(

"non-os_log builtin passed to computeOSLogBufferLayout"

);

206

OSLogFormatStringHandler H(VarArgs);

210

H.computeLayout(Ctx, Layout);

Defines enum values for all the target-independent builtin functions.

static Decl::Kind getKind(const Decl *D)

Defines the C++ Decl subclasses, other than those for templates (found in DeclTemplate....

Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...

const LangOptions & getLangOpts() const

CharUnits getTypeSizeInChars(QualType T) const

Return the size of the specified (complete) type T, in characters.

const TargetInfo & getTargetInfo() const

CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]).

CharUnits - This is an opaque type for sizes expressed in character units.

static CharUnits fromQuantity(QuantityType Quantity)

fromQuantity - Construct a CharUnits quantity from a raw integer type.

static CharUnits Zero()

Zero - Construct a CharUnits quantity of zero.

This represents one expression.

Expr * IgnoreParenCasts() LLVM_READONLY

Skip past any parentheses and casts which might surround this expression until reaching a fixed point...

StringLiteral - This represents a string literal expression, e.g.

StringRef getString() const

Exposes information about the current target.

virtual bool HandlePrintfSpecifier(const analyze_printf::PrintfSpecifier &FS, const char *startSpecifier, unsigned specifierLen, const TargetInfo &Target)

An OSLogBufferItem represents a single item in the data written by a call to os_log() or os_trace().

SmallVector< OSLogBufferItem, 4 > Items

bool computeOSLogBufferLayout(clang::ASTContext &Ctx, const clang::CallExpr *E, OSLogBufferLayout &layout)

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

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