clang  10.0.0svn
Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
clang::interp::EvalEmitter Class Referenceabstract

An emitter which evaluates opcodes as they are emitted. More...

#include "/opt/doxygen-docs/src/llvm/tools/clang/lib/AST/Interp/EvalEmitter.h"

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Public Types

using LabelTy = uint32_t
 
using AddrTy = uintptr_t
 
using Local = Scope::Local
 

Public Member Functions

llvm::Expected< boolinterpretExpr (const Expr *E)
 
llvm::Expected< boolinterpretDecl (const VarDecl *VD)
 
- Public Member Functions inherited from clang::interp::SourceMapper
virtual ~SourceMapper ()
 
const ExprgetExpr (Function *F, CodePtr PC) const
 Returns the expression if an opcode belongs to one, null otherwise. More...
 
SourceLocation getLocation (Function *F, CodePtr PC) const
 Returns the location from which an opcode originates. More...
 

Protected Member Functions

 EvalEmitter (Context &Ctx, Program &P, State &Parent, InterpStack &Stk, APValue &Result)
 
virtual ~EvalEmitter ()
 
void emitLabel (LabelTy Label)
 Define a label. More...
 
LabelTy getLabel ()
 Create a label. More...
 
virtual bool visitExpr (const Expr *E)=0
 Methods implemented by the compiler. More...
 
virtual bool visitDecl (const VarDecl *VD)=0
 
bool bail (const Stmt *S)
 
bool bail (const Decl *D)
 
bool bail (const SourceLocation &Loc)
 
bool jumpTrue (const LabelTy &Label)
 Emits jumps. More...
 
bool jumpFalse (const LabelTy &Label)
 
bool jump (const LabelTy &Label)
 
bool fallthrough (const LabelTy &Label)
 
Local createLocal (Descriptor *D)
 Callback for registering a local. More...
 
SourceInfo getSource (Function *F, CodePtr PC) const override
 Returns the source location of the current opcode. More...
 

Protected Attributes

llvm::DenseMap< const ParmVarDecl *, unsigned > Params
 Parameter indices. More...
 
llvm::SmallVector< SmallVector< Local, 8 >, 2 > Descriptors
 Local descriptors. More...
 

Detailed Description

An emitter which evaluates opcodes as they are emitted.

Definition at line 36 of file EvalEmitter.h.

Member Typedef Documentation

◆ AddrTy

Definition at line 39 of file EvalEmitter.h.

◆ LabelTy

Definition at line 38 of file EvalEmitter.h.

◆ Local

Definition at line 40 of file EvalEmitter.h.

Constructor & Destructor Documentation

◆ EvalEmitter()

EvalEmitter::EvalEmitter ( Context Ctx,
Program P,
State Parent,
InterpStack Stk,
APValue Result 
)
protected

Definition at line 22 of file EvalEmitter.cpp.

◆ ~EvalEmitter()

virtual clang::interp::EvalEmitter::~EvalEmitter ( )
inlineprotectedvirtual

Definition at line 49 of file EvalEmitter.h.

References emitLabel(), getLabel(), Label, visitDecl(), and visitExpr().

Member Function Documentation

◆ bail() [1/3]

bool clang::interp::EvalEmitter::bail ( const Stmt S)
inlineprotected

Definition at line 60 of file EvalEmitter.h.

References bail(), and clang::Stmt::getBeginLoc().

Referenced by bail().

◆ bail() [2/3]

bool clang::interp::EvalEmitter::bail ( const Decl D)
inlineprotected

Definition at line 61 of file EvalEmitter.h.

References bail(), createLocal(), fallthrough(), clang::Decl::getBeginLoc(), jump(), jumpFalse(), and jumpTrue().

Referenced by bail().

◆ bail() [3/3]

bool EvalEmitter::bail ( const SourceLocation Loc)
protected

Definition at line 63 of file EvalEmitter.cpp.

◆ createLocal()

Scope::Local EvalEmitter::createLocal ( Descriptor D)
protected

Callback for registering a local.

Definition at line 51 of file EvalEmitter.cpp.

References clang::interp::Descriptor::getAllocSize(), and clang::interp::Block::invokeCtor().

Referenced by bail().

◆ emitLabel()

void EvalEmitter::emitLabel ( LabelTy  Label)
protected

Define a label.

Definition at line 45 of file EvalEmitter.cpp.

References Label.

Referenced by ~EvalEmitter().

◆ fallthrough()

bool EvalEmitter::fallthrough ( const LabelTy Label)
protected

◆ getLabel()

EvalEmitter::LabelTy EvalEmitter::getLabel ( )
protected

Create a label.

Definition at line 49 of file EvalEmitter.cpp.

Referenced by ~EvalEmitter().

◆ getSource()

SourceInfo clang::interp::EvalEmitter::getSource ( Function F,
CodePtr  PC 
) const
inlineoverrideprotectedvirtual

Returns the source location of the current opcode.

Implements clang::interp::SourceMapper.

Definition at line 74 of file EvalEmitter.h.

References clang::interp::Function::getSource().

◆ interpretDecl()

llvm::Expected< bool > EvalEmitter::interpretDecl ( const VarDecl VD)

Definition at line 37 of file EvalEmitter.cpp.

References visitDecl().

◆ interpretExpr()

llvm::Expected< bool > EvalEmitter::interpretExpr ( const Expr E)

Definition at line 29 of file EvalEmitter.cpp.

References visitExpr().

◆ jump()

bool EvalEmitter::jump ( const LabelTy Label)
protected

Definition at line 85 of file EvalEmitter.cpp.

References Label.

Referenced by bail().

◆ jumpFalse()

bool EvalEmitter::jumpFalse ( const LabelTy Label)
protected

Definition at line 77 of file EvalEmitter.cpp.

References Label, clang::interp::InterpStack::pop(), and clang::interp::InterpState::Stk.

Referenced by bail().

◆ jumpTrue()

bool EvalEmitter::jumpTrue ( const LabelTy Label)
protected

Emits jumps.

Definition at line 69 of file EvalEmitter.cpp.

References Label, clang::interp::InterpStack::pop(), and clang::interp::InterpState::Stk.

Referenced by bail().

◆ visitDecl()

virtual bool clang::interp::EvalEmitter::visitDecl ( const VarDecl VD)
protectedpure virtual

Referenced by interpretDecl(), and ~EvalEmitter().

◆ visitExpr()

virtual bool clang::interp::EvalEmitter::visitExpr ( const Expr E)
protectedpure virtual

Methods implemented by the compiler.

Referenced by interpretExpr(), and ~EvalEmitter().

Member Data Documentation

◆ Descriptors

llvm::SmallVector<SmallVector<Local, 8>, 2> clang::interp::EvalEmitter::Descriptors
protected

Local descriptors.

Definition at line 81 of file EvalEmitter.h.

Referenced by fallthrough().

◆ Params

llvm::DenseMap<const ParmVarDecl *, unsigned> clang::interp::EvalEmitter::Params
protected

Parameter indices.

Definition at line 79 of file EvalEmitter.h.


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