clang::FunctionScopeInfo Struct Reference

Retains information about a function, method, or block that is currently being parsed. More...

#include <Sema.h>

Inheritance diagram for clang::FunctionScopeInfo:

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Collaboration diagram for clang::FunctionScopeInfo:

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List of all members.

Public Member Functions
bool	NeedsScopeChecking () const
	FunctionScopeInfo (unsigned NumErrors)
virtual	~FunctionScopeInfo ()
void	Clear (unsigned NumErrors)
	Clear out the information in this function scope, making it suitable for reuse.
Static Public Member Functions
static bool	classof (const FunctionScopeInfo *FSI)
Public Attributes
bool	IsBlockInfo
	Whether this scope information structure defined information for a block.
bool	HasBranchProtectedScope
	Whether this function contains a VLA, , try, C++ initializer, or anything else that can't be jumped past.
bool	HasBranchIntoScope
	Whether this function contains any switches or direct gotos.
bool	HasIndirectGoto
	Whether this function contains any indirect gotos.
unsigned	NumErrorsAtStartOfFunction
	The number of errors that had occurred before starting this function or block.
llvm::DenseMap< IdentifierInfo , LabelStmt >	LabelMap
llvm::SmallVector< SwitchStmt *, 8 >	SwitchStack
llvm::SmallVector< ReturnStmt *, 4 >	Returns
	The list of return statements that occur within the function or block, if there is any chance of applying the named return value optimization.

Detailed Description

Retains information about a function, method, or block that is currently being parsed.

Definition at line 129 of file Sema.h.

Constructor & Destructor Documentation

clang::FunctionScopeInfo::FunctionScopeInfo ( unsigned NumErrors ) [inline]

Definition at line 167 of file Sema.h.

FunctionScopeInfo::~FunctionScopeInfo ( ) [virtual]

Definition at line 34 of file Sema.cpp.

Member Function Documentation

static bool clang::FunctionScopeInfo::classof ( const FunctionScopeInfo * FSI ) [inline, static]

Reimplemented in clang::BlockScopeInfo.

Definition at line 180 of file Sema.h.

void FunctionScopeInfo::Clear ( unsigned NumErrors )

Clear out the information in this function scope, making it suitable for reuse.

Definition at line 36 of file Sema.cpp.

References HasBranchIntoScope, HasBranchProtectedScope, HasIndirectGoto, LabelMap, NumErrorsAtStartOfFunction, Returns, and SwitchStack.

Referenced by clang::Sema::PopFunctionOrBlockScope(), and clang::Sema::PushFunctionScope().

bool clang::FunctionScopeInfo::NeedsScopeChecking ( ) const [inline]

Definition at line 162 of file Sema.h.

References HasBranchIntoScope, HasBranchProtectedScope, and HasIndirectGoto.

Member Data Documentation

bool clang::FunctionScopeInfo::HasBranchIntoScope

Whether this function contains any switches or direct gotos.

Definition at line 139 of file Sema.h.

Referenced by Clear(), and NeedsScopeChecking().

bool clang::FunctionScopeInfo::HasBranchProtectedScope

Whether this function contains a VLA, , try, C++ initializer, or anything else that can't be jumped past.

Definition at line 136 of file Sema.h.

Referenced by Clear(), and NeedsScopeChecking().

bool clang::FunctionScopeInfo::HasIndirectGoto

Whether this function contains any indirect gotos.

Definition at line 142 of file Sema.h.

Referenced by Clear(), and NeedsScopeChecking().

bool clang::FunctionScopeInfo::IsBlockInfo

Whether this scope information structure defined information for a block.

Definition at line 132 of file Sema.h.

Referenced by clang::BlockScopeInfo::BlockScopeInfo(), and clang::BlockScopeInfo::classof().

llvm::DenseMap<IdentifierInfo*, LabelStmt*> clang::FunctionScopeInfo::LabelMap

LabelMap - This is a mapping from label identifiers to the LabelStmt for it (which acts like the label decl in some ways). Forward referenced labels have a LabelStmt created for them with a null location & SubStmt.

Definition at line 151 of file Sema.h.

Referenced by Clear(), and clang::Sema::getLabelMap().

unsigned clang::FunctionScopeInfo::NumErrorsAtStartOfFunction

The number of errors that had occurred before starting this function or block.

Definition at line 146 of file Sema.h.

Referenced by Clear(), and clang::Sema::hasAnyErrorsInThisFunction().

llvm::SmallVector<ReturnStmt *, 4> clang::FunctionScopeInfo::Returns

The list of return statements that occur within the function or block, if there is any chance of applying the named return value optimization.

Definition at line 160 of file Sema.h.

Referenced by Clear().

llvm::SmallVector<SwitchStmt*, 8> clang::FunctionScopeInfo::SwitchStack

SwitchStack - This is the current set of active switch statements in the block.