DeclStmt Class Reference

Statement representing a single declaration (which in turn may declare a number of variables. More...

#include <stmt.h>

Inheritance diagram for DeclStmt:

Collaboration diagram for DeclStmt:

Public Member Functions
	DeclStmt (const std::vector< VariableDeclaration > &v, SourcePos pos)
void	EmitCode (FunctionEmitContext *ctx) const
void	Print (int indent) const
Stmt *	Optimize ()
Stmt *	TypeCheck ()
int	EstimateCost () const
Public Member Functions inherited from Stmt
	Stmt (SourcePos p, unsigned scid)
Public Member Functions inherited from ASTNode
	ASTNode (SourcePos p, unsigned scid)
virtual	~ASTNode ()
unsigned	getValueID () const

Static Public Member Functions
static bool	classof (DeclStmt const *)
static bool	classof (ASTNode const *N)
Static Public Member Functions inherited from Stmt
static bool	classof (Stmt const *)
static bool	classof (ASTNode const *N)
Static Public Member Functions inherited from ASTNode
static bool	classof (ASTNode const *)

Public Attributes
std::vector< VariableDeclaration >	vars
Public Attributes inherited from ASTNode
SourcePos	pos

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 }

Detailed Description

Statement representing a single declaration (which in turn may declare a number of variables.

Definition at line 100 of file stmt.h.

Constructor & Destructor Documentation

DeclStmt()

DeclStmt::DeclStmt	(	const std::vector< VariableDeclaration > &	v,
		SourcePos	pos
	)

Definition at line 98 of file stmt.cpp.

Member Function Documentation

classof() [1/2]

static bool DeclStmt::classof ( DeclStmt const *  )

inlinestatic

Definition at line 104 of file stmt.h.

classof() [2/2]

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

inlinestatic

Definition at line 105 of file stmt.h.

References ASTNode::DeclStmtID, Stmt::EmitCode(), ASTNode::EstimateCost(), ASTNode::getValueID(), Stmt::Optimize(), Stmt::Print(), and Stmt::TypeCheck().

EmitCode()

void DeclStmt::EmitCode ( FunctionEmitContext *  ctx ) const

virtual

Emit LLVM IR for the statement, using the FunctionEmitContext to create the necessary instructions.

Implements Stmt.

Definition at line 111 of file stmt.cpp.

References FunctionEmitContext::AllocaInst(), AssertPos, Globals::ctx, FunctionEmitContext::EmitVariableDebugInfo(), Error(), Module::errorCount, SourcePos::first_line, g, Expr::GetConstant(), FunctionEmitContext::GetCurrentBasicBlock(), FunctionEmitContext::GetFunction(), Expr::GetLValueType(), Expr::GetType(), InitSymbol(), Type::IsConstType(), IsReferenceType(), Type::IsUniformType(), lHasUnsizedArrays(), Type::LLVMType(), m, Module::module, Symbol::name, Optimize(), Symbol::parentFunction, Symbol::pos, ASTNode::pos, PossiblyResolveFunctionOverloads(), SC_STATIC, FunctionEmitContext::SetDebugPos(), ArrayType::SizeUnsizedArrays(), Symbol::storageClass, Symbol::storagePtr, Symbol::type, TypeConvertExpr(), vars, Symbol::varyingCFDepth, and FunctionEmitContext::VaryingCFDepth().

EstimateCost()

int DeclStmt::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 328 of file stmt.cpp.

Optimize()

Stmt * DeclStmt::Optimize ( )

virtual

The Optimize() method should perform any appropriate early-stage optimizations on the node (e.g. constant folding). This method will be called after the node's children have already been optimized, and the caller will store the returned ASTNode * in place of the original node. This method should return NULL if an error is encountered during optimization.

Reimplemented from Stmt.

Definition at line 235 of file stmt.cpp.

References Symbol::constValue, Type::Equal(), Expr::GetType(), Type::IsConstType(), Symbol::type, and vars.

Referenced by EmitCode().

Print()

void DeclStmt::Print ( int  indent ) const

virtual

Print a representation of the statement (and any children AST nodes) to standard output. This method is used for debuggins.

Implements Stmt.

Definition at line 313 of file stmt.cpp.

References ASTNode::pos, SourcePos::Print(), and vars.

TypeCheck()

Stmt * DeclStmt::TypeCheck ( )

virtual

Type checking should be performed by the node when this method is called. In the event of an error, a NULL value may be returned. As with ASTNode::Optimize(), the caller should store the returned pointer in place of the original ASTNode *.

Implements Stmt.

Definition at line 296 of file stmt.cpp.

References checkInit(), and vars.

Member Data Documentation

vars

std::vector<VariableDeclaration> DeclStmt::vars

Definition at line 114 of file stmt.h.

Referenced by EmitCode(), Optimize(), Print(), TypeCheck(), and WalkAST().

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

• stmt.h
• stmt.cpp