PtrDerefExpr Class Reference

Expression that represents dereferencing a pointer to get its value. More...

#include <expr.h>

Inheritance diagram for PtrDerefExpr:

Collaboration diagram for PtrDerefExpr:

Public Member Functions
	PtrDerefExpr (Expr *e, SourcePos p)
const Type *	GetType () const
void	Print () const
Expr *	TypeCheck ()
int	EstimateCost () const
Public Member Functions inherited from DerefExpr
	DerefExpr (Expr *e, SourcePos p, unsigned scid=DerefExprID)
llvm::Value *	GetValue (FunctionEmitContext *ctx) const
llvm::Value *	GetLValue (FunctionEmitContext *ctx) const
const Type *	GetLValueType () const
Symbol *	GetBaseSymbol () const
Expr *	Optimize ()
Public Member Functions inherited from Expr
	Expr (SourcePos p, unsigned scid)
virtual std::pair< llvm::Constant *, bool >	GetStorageConstant (const Type *type) const
virtual std::pair< llvm::Constant *, bool >	GetConstant (const Type *type) const
Public Member Functions inherited from ASTNode
	ASTNode (SourcePos p, unsigned scid)
virtual	~ASTNode ()
unsigned	getValueID () const

Static Public Member Functions
static bool	classof (PtrDerefExpr const *)
static bool	classof (ASTNode const *N)
Static Public Member Functions inherited from DerefExpr
static bool	classof (DerefExpr const *)
static bool	classof (ASTNode const *N)
Static Public Member Functions inherited from Expr
static bool	classof (Expr const *)
static bool	classof (ASTNode const *N)
Static Public Member Functions inherited from ASTNode
static bool	classof (ASTNode const *)

Additional Inherited Members
Public Types inherited from ASTNode
enum	ASTNodeTy {   AddressOfExprID, AssignExprID, BinaryExprID, ConstExprID,   DerefExprID, PtrDerefExprID, RefDerefExprID, ExprListID,   FunctionCallExprID, FunctionSymbolExprID, IndexExprID, StructMemberExprID,   VectorMemberExprID, NewExprID, NullPointerExprID, ReferenceExprID,   SelectExprID, SizeOfExprID, SymbolExprID, SyncExprID,   TypeCastExprID, UnaryExprID, MaxExprID, AssertStmtID,   BreakStmtID, CaseStmtID, ContinueStmtID, DeclStmtID,   DefaultStmtID, DeleteStmtID, DoStmtID, ExprStmtID,   ForeachActiveStmtID, ForeachStmtID, ForeachUniqueStmtID, ForStmtID,   GotoStmtID, IfStmtID, LabeledStmtID, PrintStmtID,   ReturnStmtID, StmtListID, SwitchStmtID, UnmaskedStmtID }
Public Attributes inherited from DerefExpr
Expr *	expr
Public Attributes inherited from ASTNode
SourcePos	pos

Detailed Description

Expression that represents dereferencing a pointer to get its value.

Definition at line 557 of file expr.h.

Constructor & Destructor Documentation

PtrDerefExpr()

PtrDerefExpr::PtrDerefExpr	(	Expr *	e,
		SourcePos	p
	)

Definition at line 7270 of file expr.cpp.

Member Function Documentation

classof() [1/2]

static bool PtrDerefExpr::classof ( PtrDerefExpr const *  )

inlinestatic

Definition at line 561 of file expr.h.

classof() [2/2]

static bool PtrDerefExpr::classof ( ASTNode const *  N )

inlinestatic

Definition at line 562 of file expr.h.

References ASTNode::EstimateCost(), Expr::GetType(), ASTNode::getValueID(), Expr::Print(), ASTNode::PtrDerefExprID, and Expr::TypeCheck().

EstimateCost()

int PtrDerefExpr::EstimateCost ( ) const

virtual

Estimate the execution cost of the node (not including the cost of the children. The value returned should be based on the COST_* enumerant values defined in ispc.h.

Implements ASTNode.

Definition at line 7306 of file expr.cpp.

References AssertPos, COST_DEREF, COST_GATHER, Module::errorCount, DerefExpr::expr, Expr::GetType(), Type::IsVaryingType(), and m.

GetType()

const Type * PtrDerefExpr::GetType ( ) const

virtual

Returns the Type of the expression.

Implements Expr.

Definition at line 7272 of file expr.cpp.

References AssertPos, Module::errorCount, DerefExpr::expr, Type::GetAsVaryingType(), Type::GetBaseType(), Expr::GetType(), Type::IsUniformType(), and m.

Referenced by Print().

Print()

void PtrDerefExpr::Print ( ) const

virtual

Prints the expression to standard output (used for debugging).

Implements Expr.

Definition at line 7321 of file expr.cpp.

References DerefExpr::expr, GetType(), Expr::Print(), and SourcePos::Print().

TypeCheck()

Expr * PtrDerefExpr::TypeCheck ( )

virtual

This method should perform type checking of the expression and return a pointer to the resulting expression. If an error is encountered, NULL should be returned.

Implements Expr.

Definition at line 7286 of file expr.cpp.

References AssertPos, Error(), Module::errorCount, DerefExpr::expr, Type::GetString(), Expr::GetType(), and m.

---

The documentation for this class was generated from the following files:

• expr.h
• expr.cpp