clang
3.9.0
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A call to a literal operator (C++11 [over.literal]) written as a user-defined literal (C++11 [lit.ext]). More...
#include <ExprCXX.h>
Public Member Functions | |
UserDefinedLiteral (const ASTContext &C, Expr *Fn, ArrayRef< Expr * > Args, QualType T, ExprValueKind VK, SourceLocation LitEndLoc, SourceLocation SuffixLoc) | |
UserDefinedLiteral (const ASTContext &C, EmptyShell Empty) | |
LiteralOperatorKind | getLiteralOperatorKind () const |
Returns the kind of literal operator invocation which this expression represents. More... | |
Expr * | getCookedLiteral () |
If this is not a raw user-defined literal, get the underlying cooked literal (representing the literal with the suffix removed). More... | |
const Expr * | getCookedLiteral () const |
SourceLocation | getLocStart () const |
SourceLocation | getLocEnd () const |
SourceLocation | getUDSuffixLoc () const |
Returns the location of a ud-suffix in the expression. More... | |
const IdentifierInfo * | getUDSuffix () const |
Returns the ud-suffix specified for this literal. More... | |
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CallExpr (const ASTContext &C, Expr *fn, ArrayRef< Expr * > args, QualType t, ExprValueKind VK, SourceLocation rparenloc) | |
CallExpr (const ASTContext &C, StmtClass SC, EmptyShell Empty) | |
Build an empty call expression. More... | |
const Expr * | getCallee () const |
Expr * | getCallee () |
void | setCallee (Expr *F) |
Decl * | getCalleeDecl () |
const Decl * | getCalleeDecl () const |
FunctionDecl * | getDirectCallee () |
If the callee is a FunctionDecl, return it. Otherwise return 0. More... | |
const FunctionDecl * | getDirectCallee () const |
unsigned | getNumArgs () const |
getNumArgs - Return the number of actual arguments to this call. More... | |
Expr ** | getArgs () |
Retrieve the call arguments. More... | |
const Expr *const * | getArgs () const |
Expr * | getArg (unsigned Arg) |
getArg - Return the specified argument. More... | |
const Expr * | getArg (unsigned Arg) const |
void | setArg (unsigned Arg, Expr *ArgExpr) |
setArg - Set the specified argument. More... | |
void | setNumArgs (const ASTContext &C, unsigned NumArgs) |
setNumArgs - This changes the number of arguments present in this call. More... | |
arg_range | arguments () |
arg_const_range | arguments () const |
arg_iterator | arg_begin () |
arg_iterator | arg_end () |
const_arg_iterator | arg_begin () const |
const_arg_iterator | arg_end () const |
ArrayRef< Stmt * > | getRawSubExprs () |
This method provides fast access to all the subexpressions of a CallExpr without going through the slower virtual child_iterator interface. More... | |
unsigned | getNumCommas () const |
getNumCommas - Return the number of commas that must have been present in this function call. More... | |
unsigned | getBuiltinCallee () const |
getBuiltinCallee - If this is a call to a builtin, return the builtin ID of the callee. More... | |
bool | isUnevaluatedBuiltinCall (const ASTContext &Ctx) const |
Returns true if this is a call to a builtin which does not evaluate side-effects within its arguments. More... | |
QualType | getCallReturnType (const ASTContext &Ctx) const |
getCallReturnType - Get the return type of the call expr. More... | |
SourceLocation | getRParenLoc () const |
void | setRParenLoc (SourceLocation L) |
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 |
isValueDependent - Determines whether this expression is value-dependent (C++ [temp.dep.constexpr]). More... | |
void | setValueDependent (bool VD) |
Set whether this expression is value-dependent or not. More... | |
bool | isTypeDependent () const |
isTypeDependent - Determines whether this expression is type-dependent (C++ [temp.dep.expr]), which means that its type could change from one template instantiation to the next. More... | |
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 |
getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic expression. More... | |
bool | isUnusedResultAWarning (const Expr *&WarnExpr, SourceLocation &Loc, SourceRange &R1, SourceRange &R2, ASTContext &Ctx) const |
isUnusedResultAWarning - Return true if this immediate expression should be warned about if the result is unused. More... | |
bool | isLValue () const |
isLValue - True if this expression is an "l-value" according to the rules of the current language. More... | |
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 |
isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, does not have an incomplete type, does not have a const-qualified type, and if it is a structure or union, does not have any member (including, recursively, any member or element of all contained aggregates or unions) with a const-qualified type. More... | |
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 |
getObjectKind - The object kind that this expression produces. More... | |
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 | refersToGlobalRegisterVar () const |
Returns whether this expression refers to a global register variable. 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 |
isKnownToHaveBooleanValue - Return true if this is an integer expression that is known to return 0 or 1. More... | |
bool | isIntegerConstantExpr (llvm::APSInt &Result, const ASTContext &Ctx, SourceLocation *Loc=nullptr, bool isEvaluated=true) const |
isIntegerConstantExpr - Return true if this expression is a valid integer constant expression, and, if so, return its value in Result. More... | |
bool | isIntegerConstantExpr (const ASTContext &Ctx, SourceLocation *Loc=nullptr) const |
bool | isCXX98IntegralConstantExpr (const ASTContext &Ctx) const |
isCXX98IntegralConstantExpr - Return true if this expression is an integral constant expression in C++98. More... | |
bool | isCXX11ConstantExpr (const ASTContext &Ctx, APValue *Result=nullptr, SourceLocation *Loc=nullptr) const |
isCXX11ConstantExpr - Return true if this expression is a constant expression in C++11. More... | |
bool | isConstantInitializer (ASTContext &Ctx, bool ForRef, const Expr **Culprit=nullptr) const |
isConstantInitializer - Returns true if this expression can be emitted to IR as a constant, and thus can be used as a constant initializer in C. More... | |
bool | EvaluateAsRValue (EvalResult &Result, const ASTContext &Ctx) const |
EvaluateAsRValue - Return true if this is a constant which we can fold to an rvalue using any crazy technique (that has nothing to do with language standards) that we want to, even if the expression has side-effects. More... | |
bool | EvaluateAsBooleanCondition (bool &Result, const ASTContext &Ctx) const |
EvaluateAsBooleanCondition - Return true if this is a constant which we we can fold and convert to a boolean condition using any crazy technique that we want to, even if the expression has side-effects. More... | |
bool | EvaluateAsInt (llvm::APSInt &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const |
EvaluateAsInt - Return true if this is a constant which we can fold and convert to an integer, using any crazy technique that we want to. More... | |
bool | EvaluateAsFloat (llvm::APFloat &Result, const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const |
EvaluateAsFloat - Return true if this is a constant which we can fold and convert to a floating point value, using any crazy technique that we want to. More... | |
bool | isEvaluatable (const ASTContext &Ctx, SideEffectsKind AllowSideEffects=SE_NoSideEffects) const |
isEvaluatable - Call EvaluateAsRValue to see if this expression can be constant folded without side-effects, but discard the result. More... | |
bool | HasSideEffects (const ASTContext &Ctx, bool IncludePossibleEffects=true) const |
HasSideEffects - This routine returns true for all those expressions which have any effect other than producing a value. More... | |
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 |
EvaluateKnownConstInt - Call EvaluateAsRValue and return the folded integer. More... | |
void | EvaluateForOverflow (const ASTContext &Ctx) const |
bool | EvaluateAsLValue (EvalResult &Result, const ASTContext &Ctx) const |
EvaluateAsLValue - Evaluate an expression to see if we can fold it to an lvalue with link time known address, with no side-effects. More... | |
bool | EvaluateAsInitializer (APValue &Result, const ASTContext &Ctx, const VarDecl *VD, SmallVectorImpl< PartialDiagnosticAt > &Notes) const |
EvaluateAsInitializer - Evaluate an expression as if it were the initializer of the given declaration. More... | |
bool | EvaluateWithSubstitution (APValue &Value, ASTContext &Ctx, const FunctionDecl *Callee, ArrayRef< const Expr * > Args) const |
EvaluateWithSubstitution - Evaluate an expression as if from the context of a call to the given function with the given arguments, inside an unevaluated context. More... | |
bool | tryEvaluateObjectSize (uint64_t &Result, ASTContext &Ctx, unsigned Type) const |
If the current Expr is a pointer, this will try to statically determine the number of bytes available where the pointer is pointing. More... | |
NullPointerConstantKind | isNullPointerConstant (ASTContext &Ctx, NullPointerConstantValueDependence NPC) const |
isNullPointerConstant - C99 6.3.2.3p3 - Test if this reduces down to a Null pointer constant. More... | |
bool | isOBJCGCCandidate (ASTContext &Ctx) const |
isOBJCGCCandidate - Return true if this expression may be used in a read/ write barrier. More... | |
bool | isBoundMemberFunction (ASTContext &Ctx) const |
Returns true if this expression is a bound member function. More... | |
Expr * | IgnoreImpCasts () LLVM_READONLY |
IgnoreImpCasts - Skip past any implicit casts which might surround this expression. More... | |
Expr * | IgnoreImplicit () LLVM_READONLY |
IgnoreImplicit - Skip past any implicit AST nodes which might surround this expression. More... | |
const Expr * | IgnoreImplicit () const LLVM_READONLY |
Expr * | IgnoreParens () LLVM_READONLY |
IgnoreParens - Ignore parentheses. More... | |
Expr * | IgnoreParenCasts () LLVM_READONLY |
IgnoreParenCasts - Ignore parentheses and casts. More... | |
Expr * | IgnoreCasts () LLVM_READONLY |
Ignore casts. Strip off any CastExprs, returning their operand. More... | |
Expr * | IgnoreParenImpCasts () LLVM_READONLY |
IgnoreParenImpCasts - Ignore parentheses and implicit casts. More... | |
Expr * | IgnoreConversionOperator () LLVM_READONLY |
IgnoreConversionOperator - Ignore conversion operator. More... | |
const Expr * | IgnoreConversionOperator () const LLVM_READONLY |
const Expr * | IgnoreParenImpCasts () const LLVM_READONLY |
Expr * | IgnoreParenLValueCasts () LLVM_READONLY |
Ignore parentheses and lvalue casts. More... | |
const Expr * | IgnoreParenLValueCasts () const LLVM_READONLY |
Expr * | IgnoreParenNoopCasts (ASTContext &Ctx) LLVM_READONLY |
IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the value (including ptr->int casts of the same size). More... | |
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 |
Walk outwards from an expression we want to bind a reference to and find the expression whose lifetime needs to be extended. More... | |
Static Public Member Functions | |
static bool | classof (const Stmt *S) |
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static bool | classof (const Stmt *T) |
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static ExprValueKind | getValueKindForType (QualType T) |
getValueKindForType - Given a formal return or parameter type, give its value kind. More... | |
static bool | isPotentialConstantExpr (const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags) |
isPotentialConstantExpr - Return true if this function's definition might be usable in a constant expression in C++11, if it were marked constexpr. More... | |
static bool | isPotentialConstantExprUnevaluated (Expr *E, const FunctionDecl *FD, SmallVectorImpl< PartialDiagnosticAt > &Diags) |
isPotentialConstantExprUnevaluted - Return true if this expression might be usable in a constant expression in C++11 in an unevaluated context, if it were in function FD marked constexpr. More... | |
static QualType | findBoundMemberType (const Expr *expr) |
Given an expression of bound-member type, find the type of the member. More... | |
static bool | hasAnyTypeDependentArguments (ArrayRef< Expr * > Exprs) |
hasAnyTypeDependentArguments - Determines if any of the expressions in Exprs is type-dependent. More... | |
static bool | classof (const Stmt *T) |
Friends | |
class | ASTStmtReader |
class | ASTStmtWriter |
Additional Inherited Members | |
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CallExpr (const ASTContext &C, StmtClass SC, Expr *fn, ArrayRef< Expr * > preargs, ArrayRef< Expr * > args, QualType t, ExprValueKind VK, SourceLocation rparenloc) | |
CallExpr (const ASTContext &C, StmtClass SC, Expr *fn, ArrayRef< Expr * > args, QualType t, ExprValueKind VK, SourceLocation rparenloc) | |
CallExpr (const ASTContext &C, StmtClass SC, unsigned NumPreArgs, EmptyShell Empty) | |
Stmt * | getPreArg (unsigned i) |
const Stmt * | getPreArg (unsigned i) const |
void | setPreArg (unsigned i, Stmt *PreArg) |
unsigned | getNumPreArgs () const |
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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 call to a literal operator (C++11 [over.literal]) written as a user-defined literal (C++11 [lit.ext]).
Represents a user-defined literal, e.g. "foo"_bar or 1.23_xyz. While this is semantically equivalent to a normal call, this AST node provides better information about the syntactic representation of the literal.
Since literal operators are never found by ADL and can only be declared at namespace scope, a user-defined literal is never dependent.
The kind of literal operator which is invoked.
Enumerator | |
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LOK_Raw |
Raw form: operator "" X (const char *) |
LOK_Template |
Raw form: operator "" X<cs...> () |
LOK_Integer |
operator "" X (unsigned long long) |
LOK_Floating |
operator "" X (long double) |
LOK_String |
operator "" X (const CharT *, size_t) |
LOK_Character |
operator "" X (CharT) |
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Expr * UserDefinedLiteral::getCookedLiteral | ( | ) |
If this is not a raw user-defined literal, get the underlying cooked literal (representing the literal with the suffix removed).
Definition at line 681 of file ExprCXX.cpp.
References clang::CallExpr::getArg(), getLiteralOperatorKind(), LOK_Raw, and LOK_Template.
Referenced by getCookedLiteral().
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Definition at line 440 of file ExprCXX.h.
References getCookedLiteral().
UserDefinedLiteral::LiteralOperatorKind UserDefinedLiteral::getLiteralOperatorKind | ( | ) | const |
Returns the kind of literal operator invocation which this expression represents.
Definition at line 660 of file ExprCXX.cpp.
References clang::CallExpr::getCalleeDecl(), clang::CallExpr::getNumArgs(), clang::Type::isAnyCharacterType(), clang::Type::isFloatingType(), clang::Type::isIntegerType(), clang::Type::isPointerType(), LOK_Character, LOK_Floating, LOK_Integer, LOK_Raw, LOK_String, and LOK_Template.
Referenced by getCookedLiteral(), and getLocStart().
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Definition at line 449 of file ExprCXX.h.
References clang::CallExpr::getRParenLoc().
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Definition at line 444 of file ExprCXX.h.
References clang::CallExpr::getArg(), getLiteralOperatorKind(), clang::CallExpr::getRParenLoc(), and LOK_Template.
const IdentifierInfo * UserDefinedLiteral::getUDSuffix | ( | ) | const |
Returns the ud-suffix specified for this literal.
Definition at line 689 of file ExprCXX.cpp.
References clang::CallExpr::getCalleeDecl().
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