clang
3.7.0
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A C++ lambda expression, which produces a function object (of unspecified type) that can be invoked later. More...
#include <ExprCXX.h>
Public Member Functions | |
LambdaCaptureDefault | getCaptureDefault () const |
Determine the default capture kind for this lambda. More... | |
SourceLocation | getCaptureDefaultLoc () const |
Retrieve the location of this lambda's capture-default, if any. More... | |
bool | isInitCapture (const LambdaCapture *Capture) const |
Determine whether one of this lambda's captures is an init-capture. More... | |
capture_range | captures () const |
Retrieve this lambda's captures. More... | |
capture_iterator | capture_begin () const |
Retrieve an iterator pointing to the first lambda capture. More... | |
capture_iterator | capture_end () const |
Retrieve an iterator pointing past the end of the sequence of lambda captures. More... | |
unsigned | capture_size () const |
Determine the number of captures in this lambda. More... | |
capture_range | explicit_captures () const |
Retrieve this lambda's explicit captures. More... | |
capture_iterator | explicit_capture_begin () const |
Retrieve an iterator pointing to the first explicit lambda capture. More... | |
capture_iterator | explicit_capture_end () const |
Retrieve an iterator pointing past the end of the sequence of explicit lambda captures. More... | |
capture_range | implicit_captures () const |
Retrieve this lambda's implicit captures. More... | |
capture_iterator | implicit_capture_begin () const |
Retrieve an iterator pointing to the first implicit lambda capture. More... | |
capture_iterator | implicit_capture_end () const |
Retrieve an iterator pointing past the end of the sequence of implicit lambda captures. More... | |
llvm::iterator_range < capture_init_iterator > | capture_inits () const |
Retrieve the initialization expressions for this lambda's captures. More... | |
capture_init_iterator | capture_init_begin () const |
Retrieve the first initialization argument for this lambda expression (which initializes the first capture field). More... | |
capture_init_iterator | capture_init_end () const |
Retrieve the iterator pointing one past the last initialization argument for this lambda expression. More... | |
ArrayRef< VarDecl * > | getCaptureInitIndexVars (capture_init_iterator Iter) const |
Retrieve the set of index variables used in the capture initializer of an array captured by copy. More... | |
SourceRange | getIntroducerRange () const |
Retrieve the source range covering the lambda introducer, which contains the explicit capture list surrounded by square brackets ([...]). More... | |
CXXRecordDecl * | getLambdaClass () const |
Retrieve the class that corresponds to the lambda. More... | |
CXXMethodDecl * | getCallOperator () const |
Retrieve the function call operator associated with this lambda expression. More... | |
TemplateParameterList * | getTemplateParameterList () const |
If this is a generic lambda expression, retrieve the template parameter list associated with it, or else return null. More... | |
bool | isGenericLambda () const |
Whether this is a generic lambda. More... | |
CompoundStmt * | getBody () const |
Retrieve the body of the lambda. More... | |
bool | isMutable () const |
Determine whether the lambda is mutable, meaning that any captures values can be modified. More... | |
bool | hasExplicitParameters () const |
Determine whether this lambda has an explicit parameter list vs. an implicit (empty) parameter list. More... | |
bool | hasExplicitResultType () const |
Whether this lambda had its result type explicitly specified. More... | |
SourceLocation | getLocStart () const LLVM_READONLY |
SourceLocation | getLocEnd () const LLVM_READONLY |
child_range | children () |
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QualType | getType () const |
void | setType (QualType t) |
bool | isValueDependent () const |
void | setValueDependent (bool VD) |
Set whether this expression is value-dependent or not. More... | |
bool | isTypeDependent () const |
void | setTypeDependent (bool TD) |
Set whether this expression is type-dependent or not. More... | |
bool | isInstantiationDependent () const |
Whether this expression is instantiation-dependent, meaning that it depends in some way on a template parameter, even if neither its type nor (constant) value can change due to the template instantiation. More... | |
void | setInstantiationDependent (bool ID) |
Set whether this expression is instantiation-dependent or not. More... | |
bool | containsUnexpandedParameterPack () const |
Whether this expression contains an unexpanded parameter pack (for C++11 variadic templates). More... | |
void | setContainsUnexpandedParameterPack (bool PP=true) |
Set the bit that describes whether this expression contains an unexpanded parameter pack. More... | |
SourceLocation | getExprLoc () const LLVM_READONLY |
bool | isUnusedResultAWarning (const Expr *&WarnExpr, SourceLocation &Loc, SourceRange &R1, SourceRange &R2, ASTContext &Ctx) const |
bool | isLValue () const |
bool | isRValue () const |
bool | isXValue () const |
bool | isGLValue () const |
LValueClassification | ClassifyLValue (ASTContext &Ctx) const |
Reasons why an expression might not be an l-value. More... | |
isModifiableLvalueResult | isModifiableLvalue (ASTContext &Ctx, SourceLocation *Loc=nullptr) const |
Classification | Classify (ASTContext &Ctx) const |
Classify - Classify this expression according to the C++11 expression taxonomy. More... | |
Classification | ClassifyModifiable (ASTContext &Ctx, SourceLocation &Loc) const |
ClassifyModifiable - Classify this expression according to the C++11 expression taxonomy, and see if it is valid on the left side of an assignment. More... | |
ExprValueKind | getValueKind () const |
getValueKind - The value kind that this expression produces. More... | |
ExprObjectKind | getObjectKind () const |
bool | isOrdinaryOrBitFieldObject () const |
void | setValueKind (ExprValueKind Cat) |
setValueKind - Set the value kind produced by this expression. More... | |
void | setObjectKind (ExprObjectKind Cat) |
setObjectKind - Set the object kind produced by this expression. More... | |
bool | refersToBitField () const |
Returns true if this expression is a gl-value that potentially refers to a bit-field. More... | |
FieldDecl * | getSourceBitField () |
If this expression refers to a bit-field, retrieve the declaration of that bit-field. More... | |
const FieldDecl * | getSourceBitField () const |
const ObjCPropertyRefExpr * | getObjCProperty () const |
If this expression is an l-value for an Objective C property, find the underlying property reference expression. More... | |
bool | isObjCSelfExpr () const |
Check if this expression is the ObjC 'self' implicit parameter. More... | |
bool | refersToVectorElement () const |
Returns whether this expression refers to a vector element. More... | |
bool | hasPlaceholderType () const |
Returns whether this expression has a placeholder type. More... | |
bool | hasPlaceholderType (BuiltinType::Kind K) const |
Returns whether this expression has a specific placeholder type. More... | |
bool | isKnownToHaveBooleanValue () const |
bool | isIntegerConstantExpr (llvm::APSInt &Result, const ASTContext &Ctx, SourceLocation *Loc=nullptr, bool isEvaluated=true) const |
bool | isIntegerConstantExpr (const ASTContext &Ctx, SourceLocation *Loc=nullptr) const |
bool | isCXX98IntegralConstantExpr (const ASTContext &Ctx) const |
bool | isCXX11ConstantExpr (const ASTContext &Ctx, APValue *Result=nullptr, SourceLocation *Loc=nullptr) const |
bool | isConstantInitializer (ASTContext &Ctx, bool ForRef, const Expr **Culprit=nullptr) const |
bool | EvaluateAsRValue (EvalResult &Result, const ASTContext &Ctx) const |
bool | EvaluateAsBooleanCondition (bool &Result, const ASTContext &Ctx) const |
bool | EvaluateAsInt (llvm::APSInt &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const |
bool | isEvaluatable (const ASTContext &Ctx) const |
bool | HasSideEffects (const ASTContext &Ctx, bool IncludePossibleEffects=true) const |
bool | hasNonTrivialCall (const ASTContext &Ctx) const |
Determine whether this expression involves a call to any function that is not trivial. More... | |
llvm::APSInt | EvaluateKnownConstInt (const ASTContext &Ctx, SmallVectorImpl< PartialDiagnosticAt > *Diag=nullptr) const |
void | EvaluateForOverflow (const ASTContext &Ctx) const |
bool | EvaluateAsLValue (EvalResult &Result, const ASTContext &Ctx) const |
bool | EvaluateAsInitializer (APValue &Result, const ASTContext &Ctx, const VarDecl *VD, SmallVectorImpl< PartialDiagnosticAt > &Notes) const |
bool | EvaluateWithSubstitution (APValue &Value, ASTContext &Ctx, const FunctionDecl *Callee, ArrayRef< const Expr * > Args) const |
NullPointerConstantKind | isNullPointerConstant (ASTContext &Ctx, NullPointerConstantValueDependence NPC) const |
bool | isOBJCGCCandidate (ASTContext &Ctx) const |
bool | isBoundMemberFunction (ASTContext &Ctx) const |
Returns true if this expression is a bound member function. More... | |
Expr * | IgnoreImpCasts () LLVM_READONLY |
Expr * | IgnoreImplicit () LLVM_READONLY |
const Expr * | IgnoreImplicit () const LLVM_READONLY |
Expr * | IgnoreParens () LLVM_READONLY |
Expr * | IgnoreParenCasts () LLVM_READONLY |
Expr * | IgnoreCasts () LLVM_READONLY |
Ignore casts. Strip off any CastExprs, returning their operand. More... | |
Expr * | IgnoreParenImpCasts () LLVM_READONLY |
Expr * | IgnoreConversionOperator () LLVM_READONLY |
const Expr * | IgnoreConversionOperator () const LLVM_READONLY |
const Expr * | IgnoreParenImpCasts () const LLVM_READONLY |
Expr * | IgnoreParenLValueCasts () LLVM_READONLY |
const Expr * | IgnoreParenLValueCasts () const LLVM_READONLY |
Expr * | IgnoreParenNoopCasts (ASTContext &Ctx) LLVM_READONLY |
Expr * | ignoreParenBaseCasts () LLVM_READONLY |
Ignore parentheses and derived-to-base casts. More... | |
const Expr * | ignoreParenBaseCasts () const LLVM_READONLY |
bool | isDefaultArgument () const |
Determine whether this expression is a default function argument. More... | |
bool | isTemporaryObject (ASTContext &Ctx, const CXXRecordDecl *TempTy) const |
Determine whether the result of this expression is a temporary object of the given class type. More... | |
bool | isImplicitCXXThis () const |
Whether this expression is an implicit reference to 'this' in C++. More... | |
const Expr * | IgnoreImpCasts () const LLVM_READONLY |
const Expr * | IgnoreParens () const LLVM_READONLY |
const Expr * | IgnoreParenCasts () const LLVM_READONLY |
const Expr * | IgnoreCasts () const LLVM_READONLY |
Strip off casts, but keep parentheses. More... | |
const Expr * | IgnoreParenNoopCasts (ASTContext &Ctx) const LLVM_READONLY |
const CXXRecordDecl * | getBestDynamicClassType () const |
For an expression of class type or pointer to class type, return the most derived class decl the expression is known to refer to. More... | |
const Expr * | skipRValueSubobjectAdjustments (SmallVectorImpl< const Expr * > &CommaLHS, SmallVectorImpl< SubobjectAdjustment > &Adjustments) const |
Static Public Member Functions | |
static LambdaExpr * | Create (const ASTContext &C, CXXRecordDecl *Class, SourceRange IntroducerRange, LambdaCaptureDefault CaptureDefault, SourceLocation CaptureDefaultLoc, ArrayRef< Capture > Captures, bool ExplicitParams, bool ExplicitResultType, ArrayRef< Expr * > CaptureInits, ArrayRef< VarDecl * > ArrayIndexVars, ArrayRef< unsigned > ArrayIndexStarts, SourceLocation ClosingBrace, bool ContainsUnexpandedParameterPack) |
Construct a new lambda expression. More... | |
static LambdaExpr * | CreateDeserialized (const ASTContext &C, unsigned NumCaptures, unsigned NumArrayIndexVars) |
Construct a new lambda expression that will be deserialized from an external source. More... | |
static bool | classof (const Stmt *T) |
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static ExprValueKind | getValueKindForType (QualType T) |
static bool | isPotentialConstantExpr (const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags) |
static bool | isPotentialConstantExprUnevaluated (Expr *E, const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags) |
static QualType | findBoundMemberType (const Expr *expr) |
Given an expression of bound-member type, find the type of the member. Returns null if this is an overloaded bound member expression. More... | |
static bool | hasAnyTypeDependentArguments (ArrayRef< Expr * > Exprs) |
static bool | classof (const Stmt *T) |
Friends | |
class | ASTStmtReader |
class | ASTStmtWriter |
Additional Inherited Members | |
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Expr (StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, bool TD, bool VD, bool ID, bool ContainsUnexpandedParameterPack) | |
Expr (StmtClass SC, EmptyShell) | |
Construct an empty expression. More... | |
A C++ lambda expression, which produces a function object (of unspecified type) that can be invoked later.
Example:
C++11 lambda expressions can capture local variables, either by copying the values of those local variables at the time the function object is constructed (not when it is called!) or by holding a reference to the local variable. These captures can occur either implicitly or can be written explicitly between the square brackets ([...]) that start the lambda expression.
C++1y introduces a new form of "capture" called an init-capture that includes an initializing expression (rather than capturing a variable), and which can never occur implicitly.
typedef Expr** clang::LambdaExpr::capture_init_iterator |
typedef const Capture* clang::LambdaExpr::capture_iterator |
typedef llvm::iterator_range<capture_iterator> clang::LambdaExpr::capture_range |
LambdaExpr::capture_iterator LambdaExpr::capture_begin | ( | ) | const |
Retrieve an iterator pointing to the first lambda capture.
Definition at line 1035 of file ExprCXX.cpp.
References getLambdaClass().
Referenced by capture_end(), captures(), explicit_capture_begin(), and clang::Expr::HasSideEffects().
LambdaExpr::capture_iterator LambdaExpr::capture_end | ( | ) | const |
Retrieve an iterator pointing past the end of the sequence of lambda captures.
Definition at line 1039 of file ExprCXX.cpp.
References capture_begin().
Referenced by captures(), clang::Expr::HasSideEffects(), and implicit_capture_end().
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Retrieve the first initialization argument for this lambda expression (which initializes the first capture field).
Definition at line 1512 of file ExprCXX.h.
Referenced by clang::Sema::canThrow(), capture_init_end(), capture_inits(), clang::CodeGen::CodeGenFunction::EmitLambdaExpr(), getCaptureInitIndexVars(), and clang::EvaluatedExprVisitorBase< make_ptr, ImplClass >::VisitLambdaExpr().
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Retrieve the iterator pointing one past the last initialization argument for this lambda expression.
Definition at line 1518 of file ExprCXX.h.
References capture_init_begin().
Referenced by clang::Sema::canThrow(), capture_inits(), clang::CodeGen::CodeGenFunction::EmitLambdaExpr(), and clang::EvaluatedExprVisitorBase< make_ptr, ImplClass >::VisitLambdaExpr().
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Retrieve the initialization expressions for this lambda's captures.
Definition at line 1505 of file ExprCXX.h.
References capture_init_begin(), and capture_init_end().
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LambdaExpr::capture_range LambdaExpr::captures | ( | ) | const |
Retrieve this lambda's captures.
Definition at line 1043 of file ExprCXX.cpp.
References capture_begin(), and capture_end().
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Construct a new lambda expression.
Definition at line 987 of file ExprCXX.cpp.
References clang::ASTContext::Allocate(), and clang::ASTContext::getTypeDeclType().
Referenced by clang::Sema::BuildLambdaExpr().
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Construct a new lambda expression that will be deserialized from an external source.
Definition at line 1019 of file ExprCXX.cpp.
References clang::ASTContext::Allocate().
LambdaExpr::capture_iterator LambdaExpr::explicit_capture_begin | ( | ) | const |
Retrieve an iterator pointing to the first explicit lambda capture.
Definition at line 1047 of file ExprCXX.cpp.
References capture_begin().
Referenced by explicit_captures().
LambdaExpr::capture_iterator LambdaExpr::explicit_capture_end | ( | ) | const |
Retrieve an iterator pointing past the end of the sequence of explicit lambda captures.
Definition at line 1051 of file ExprCXX.cpp.
References getLambdaClass().
Referenced by explicit_captures(), and implicit_capture_begin().
LambdaExpr::capture_range LambdaExpr::explicit_captures | ( | ) | const |
Retrieve this lambda's explicit captures.
Definition at line 1057 of file ExprCXX.cpp.
References explicit_capture_begin(), and explicit_capture_end().
CompoundStmt * LambdaExpr::getBody | ( | ) | const |
Retrieve the body of the lambda.
Definition at line 1101 of file ExprCXX.cpp.
References clang::FunctionDecl::getBody(), and getCallOperator().
Referenced by clang::RecursiveASTVisitor< Derived >::TraverseLambdaBody().
CXXMethodDecl * LambdaExpr::getCallOperator | ( | ) | const |
Retrieve the function call operator associated with this lambda expression.
Definition at line 1090 of file ExprCXX.cpp.
References clang::CXXRecordDecl::getLambdaCallOperator(), and getLambdaClass().
Referenced by getBody(), isInitCapture(), and isMutable().
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ArrayRef< VarDecl * > LambdaExpr::getCaptureInitIndexVars | ( | capture_init_iterator | Iter | ) | const |
Retrieve the set of index variables used in the capture initializer of an array captured by copy.
Iter | The iterator that points at the capture initializer for which we are extracting the corresponding index variables. |
Definition at line 1074 of file ExprCXX.cpp.
References capture_init_begin(), and getLambdaClass().
Referenced by clang::CodeGen::CodeGenFunction::EmitLambdaExpr().
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CXXRecordDecl * LambdaExpr::getLambdaClass | ( | ) | const |
Retrieve the class that corresponds to the lambda.
This is the "closure type" (C++1y [expr.prim.lambda]), and stores the captures in its fields and provides the various operations permitted on a lambda (copying, calling).
Definition at line 1086 of file ExprCXX.cpp.
References clang::Type::getAsCXXRecordDecl(), and clang::Expr::getType().
Referenced by capture_begin(), clang::CodeGen::CodeGenFunction::EmitLambdaExpr(), explicit_capture_end(), getCallOperator(), getCaptureInitIndexVars(), and getTemplateParameterList().
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Definition at line 1570 of file ExprCXX.h.
References clang::SourceRange::getBegin().
TemplateParameterList * LambdaExpr::getTemplateParameterList | ( | ) | const |
If this is a generic lambda expression, retrieve the template parameter list associated with it, or else return null.
Definition at line 1095 of file ExprCXX.cpp.
References clang::CXXRecordDecl::getGenericLambdaTemplateParameterList(), and getLambdaClass().
Referenced by isGenericLambda().
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LambdaExpr::capture_iterator LambdaExpr::implicit_capture_begin | ( | ) | const |
Retrieve an iterator pointing to the first implicit lambda capture.
Definition at line 1061 of file ExprCXX.cpp.
References explicit_capture_end().
Referenced by implicit_captures().
LambdaExpr::capture_iterator LambdaExpr::implicit_capture_end | ( | ) | const |
Retrieve an iterator pointing past the end of the sequence of implicit lambda captures.
Definition at line 1065 of file ExprCXX.cpp.
References capture_end().
Referenced by implicit_captures().
LambdaExpr::capture_range LambdaExpr::implicit_captures | ( | ) | const |
Retrieve this lambda's implicit captures.
Definition at line 1069 of file ExprCXX.cpp.
References implicit_capture_begin(), and implicit_capture_end().
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Whether this is a generic lambda.
Definition at line 1550 of file ExprCXX.h.
References getTemplateParameterList().
bool LambdaExpr::isInitCapture | ( | const LambdaCapture * | Capture | ) | const |
Determine whether one of this lambda's captures is an init-capture.
Definition at line 1030 of file ExprCXX.cpp.
References clang::LambdaCapture::capturesVariable(), getCallOperator(), clang::LambdaCapture::getCapturedVar(), clang::Decl::getDeclContext(), and clang::VarDecl::isInitCapture().
Referenced by clang::RecursiveASTVisitor< Derived >::TraverseLambdaCapture().
bool LambdaExpr::isMutable | ( | ) | const |
Determine whether the lambda is mutable, meaning that any captures values can be modified.
Definition at line 1108 of file ExprCXX.cpp.
References getCallOperator(), and clang::CXXMethodDecl::isConst().
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