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Showing content from https://clang.llvm.org/doxygen/InterpFrame_8cpp_source.html below:

clang: lib/AST/ByteCode/InterpFrame.cpp Source File

;

: Caller(nullptr), S(S), Depth(0),

(nullptr), RetPC(

()),

ArgSize(0), Args(nullptr), FrameOffset(0), IsBottom(

) {}

: Caller(Caller), S(S), Depth(Caller ? Caller->Depth + 1 : 0),

(

),

RetPC(RetPC), ArgSize(ArgSize), Args(static_cast<char *>(S.Stk.top())),

FrameOffset(S.Stk.size()), IsBottom(!Caller) {

FrameSize =

->getFrameSize();

Locals = std::make_unique<char[]>(FrameSize);

(localBlock(Local.Offset))

(S.Ctx.getEvalID(), Local.Desc);

RVOPtr = stackRef<Pointer>(0);

(

->hasThisPointer()) {

This = stackRef<Pointer>(

(

));

This = stackRef<Pointer>(0);

(

&Param : Params)

<

T>

.toAPValue(ASTCtx).printPretty(OS, ASTCtx, Ty);

IsMemberCall = isa<CXXMethodDecl>(F) && !isa<CXXConstructorDecl>(F) &&

cast<CXXMethodDecl>(F)->isImplicitObjectMemberFunction();

(

*MCE = dyn_cast_if_present<CXXMemberCallExpr>(

)) {

*Object = MCE->getImplicitObjectArgument();

Object->printPretty(OS,

,

(Object->getType()->isPointerType())

}

(

*OCE =

dyn_cast_if_present<CXXOperatorCallExpr>(

)) {

OCE->getArg(0)->printPretty(OS,

,

}

(

*M = dyn_cast<CXXMethodDecl>(F)) {

(

I = 0, N = F->

(); I < N; ++I) {

assert(Offset < Func->getFrameSize() &&

);

(localBlock(Offset));

(

Pt = Params.find(Off); Pt != Params.end())

(

*

(Pt->second.get()));

BlockSize =

(

) + Desc.second->getAllocSize();

Memory = std::make_unique<char[]>(BlockSize);

(Desc.first, new (B->data())

(stackRef<T>(Off)));

Params.insert({Off, std::move(Memory)});

(DC->isStdNamespace())

Defines the clang::ASTContext interface.

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

Defines the clang::Expr interface and subclasses for C++ expressions.

static void print(llvm::raw_ostream &OS, const T &V, ASTContext &ASTCtx, QualType Ty)

static bool shouldSkipInBacktrace(const Function *F)

static bool funcHasUsableBody(const Function *F)

#define TYPE_SWITCH(Expr, B)

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

QualType getRecordType(const RecordDecl *Decl) const

QualType getLValueReferenceType(QualType T, bool SpelledAsLValue=true) const

Return the uniqued reference to the type for an lvalue reference to the specified type.

const clang::PrintingPolicy & getPrintingPolicy() const

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

DeclContext - This is used only as base class of specific decl types that can act as declaration cont...

DeclContext * getParent()

getParent - Returns the containing DeclContext.

bool isImplicit() const

isImplicit - Indicates whether the declaration was implicitly generated by the implementation.

OverloadedOperatorKind getCXXOverloadedOperator() const

If this name is the name of an overloadable operator in C++ (e.g., operator+), retrieve the kind of o...

This represents one expression.

Represents a function declaration or definition.

const ParmVarDecl * getParamDecl(unsigned i) const

unsigned getNumParams() const

Return the number of parameters this function must have based on its FunctionType.

void getNameForDiagnostic(raw_ostream &OS, const PrintingPolicy &Policy, bool Qualified) const override

Appends a human-readable name for this declaration into the given stream.

DeclarationName getDeclName() const

Get the actual, stored name of the declaration, which may be a special name.

A (possibly-)qualified type.

Encodes a location in the source.

A trivial tuple used to represent a source range.

A memory block, either on the stack or in the heap.

void invokeCtor()

Invokes the constructor.

Pointer into the code segment.

std::optional< PrimType > classify(QualType T) const

Classifies a type.

unsigned getEvalID() const

Base class for stack frames, shared between VM and walker.

Scope & getScope(unsigned Idx)

Returns a specific scope.

bool isDestructor() const

Checks if the function is a destructor.

bool isConstructor() const

Checks if the function is a constructor.

const FunctionDecl * getDecl() const

Returns the original FunctionDecl.

bool hasThisPointer() const

bool isLambdaStaticInvoker() const

Returns whether this function is a lambda static invoker, which we generate custom byte code for.

ParamDescriptor getParamDescriptor(unsigned Offset) const

Returns a parameter descriptor.

llvm::iterator_range< llvm::SmallVector< Scope, 2 >::const_iterator > scopes() const

Range over the scope blocks.

bool hasRVO() const

Checks if the first argument is a RVO pointer.

Frame storing local variables.

InterpFrame(InterpState &S)

Bottom Frame.

const Expr * getExpr(CodePtr PC) const

InterpFrame * Caller

The frame of the previous function.

virtual SourceInfo getSource(CodePtr PC) const

Map a location to a source.

CodePtr getRetPC() const

Returns the return address of the frame.

SourceLocation getLocation(CodePtr PC) const

~InterpFrame()

Destroys the frame, killing all live pointers to stack slots.

const Function * getFunction() const

Returns the current function.

SourceRange getRange(CodePtr PC) const

Pointer getLocalPointer(unsigned Offset) const

Returns a pointer to a local variables.

Frame * getCaller() const override

Returns the parent frame object.

void destroy(unsigned Idx)

Invokes the destructors for a scope.

Pointer getParamPointer(unsigned Offset)

Returns a pointer to an argument - lazily creates a block.

const FunctionDecl * getCallee() const override

Returns the caller.

bool isStdFunction() const

void initScope(unsigned Idx)

SourceRange getCallRange() const override

Returns the location of the call to the frame.

void describe(llvm::raw_ostream &OS) const override

Describes the frame with arguments for diagnostic purposes.

Context & Ctx

Interpreter Context.

ASTContext & getASTContext() const override

SourceInfo getSource(const Function *F, CodePtr PC) const override

Delegates source mapping to the mapper.

SourceLocation EvalLocation

Source location of the evaluating expression.

void deallocate(Block *B)

Deallocates a pointer.

A pointer to a memory block, live or dead.

llvm::iterator_range< LocalVectorTy::const_iterator > locals() const

Describes the statement/declaration an opcode was generated from.

SourceLocation getLocation(const Function *F, CodePtr PC) const

Returns the location from which an opcode originates.

SourceRange getRange(const Function *F, CodePtr PC) const

const Expr * getExpr(const Function *F, CodePtr PC) const

Returns the expression if an opcode belongs to one, null otherwise.

constexpr size_t align(size_t Size)

Aligns a size to the pointer alignment.

PrimType

Enumeration of the primitive types of the VM.

size_t primSize(PrimType Type)

Returns the size of a primitive type in bytes.

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

@ Result

The result type of a method or function.

const FunctionProtoType * T

__UINTPTR_TYPE__ uintptr_t

An unsigned integer type with the property that any valid pointer to void can be converted to this ty...

Inline descriptor embedded in structures and arrays.

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