PrintStmt Class Reference

Representation of a print() statement in the program. More...

#include <stmt.h>

Inheritance diagram for PrintStmt:

Collaboration diagram for PrintStmt:

Public Member Functions
	PrintStmt (const std::string &f, Expr *v, SourcePos p)
void	EmitCode (FunctionEmitContext *ctx) const
void	Print (int indent) const
Stmt *	TypeCheck ()
int	EstimateCost () const
Public Member Functions inherited from Stmt
	Stmt (SourcePos p, unsigned scid)
virtual Stmt *	Optimize ()
Public Member Functions inherited from ASTNode
	ASTNode (SourcePos p, unsigned scid)
virtual	~ASTNode ()
unsigned	getValueID () const

Static Public Member Functions
static bool	classof (PrintStmt 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
const std::string	format
Expr *	values
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

Representation of a print() statement in the program.

It's currently necessary to have a special statement type for print() since strings aren't supported as first-class types in the language, but we need to be able to pass a formatting string as the first argument to print(). We also need this to be a variable argument function, which also isn't supported. Representing print() as a statement lets us work around both of those ugly little issues...

Definition at line 470 of file stmt.h.

Constructor & Destructor Documentation

PrintStmt()

PrintStmt::PrintStmt	(	const std::string &	f,
		Expr *	v,
		SourcePos	p
	)

Definition at line 2599 of file stmt.cpp.

Member Function Documentation

classof() [1/2]

static bool PrintStmt::classof ( PrintStmt const *  )

inlinestatic

Definition at line 474 of file stmt.h.

classof() [2/2]

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

inlinestatic

Definition at line 475 of file stmt.h.

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

EmitCode()

void PrintStmt::EmitCode ( FunctionEmitContext *  ctx ) const

virtual

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

Implements Stmt.

Definition at line 2705 of file stmt.cpp.

References FunctionEmitContext::AddElementOffset(), FunctionEmitContext::AllocaInst(), AssertPos, FunctionEmitContext::BitCastInst(), FunctionEmitContext::CallInst(), ExprList::exprs, format, g, FunctionEmitContext::GetCurrentBasicBlock(), FunctionEmitContext::GetFullMask(), FunctionEmitContext::GetStringPtr(), Target::getVectorWidth(), FunctionEmitContext::LaneMask(), LLVMInt32(), lProcessPrintArg(), m, Module::module, ASTNode::pos, FunctionEmitContext::SetDebugPos(), FunctionEmitContext::StoreInst(), Globals::target, values, and LLVMTypes::VoidPointerType.

EstimateCost()

int PrintStmt::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 2783 of file stmt.cpp.

References COST_FUNCALL.

Print()

void PrintStmt::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 2779 of file stmt.cpp.

References format.

TypeCheck()

Stmt * PrintStmt::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 2781 of file stmt.cpp.

Member Data Documentation

format

const std::string PrintStmt::format

Format string for the print() statement.

Definition at line 484 of file stmt.h.

Referenced by EmitCode(), and Print().

values

Expr* PrintStmt::values

This holds the arguments passed to the print() statement. If more than one was provided, this will be an ExprList.

Definition at line 487 of file stmt.h.

Referenced by EmitCode(), and WalkAST().

---

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

• stmt.h
• stmt.cpp