dart::SuspendInstr Class Reference

#include <il.h>

Inheritance diagram for dart::SuspendInstr:

Public Types
enum class	StubId {   kAwait , kAwaitWithTypeCheck , kYieldAsyncStar , kSuspendSyncStarAtStart ,   kSuspendSyncStarAtYield }
Public Types inherited from dart::TemplateDefinition< 2, Throws >
using	BaseClass = typename NoCSE< Definition, PureDefinition >::Base

Public Member Functions
	SuspendInstr (const InstructionSource &source, StubId stub_id, Value *operand, Value *type_args, intptr_t deopt_id, intptr_t resume_deopt_id)
bool	has_type_args () const
virtual intptr_t	InputCount () const
Value *	operand () const
Value *	type_args () const
StubId	stub_id () const
intptr_t	resume_deopt_id () const
virtual TokenPosition	token_pos () const
virtual bool	CanCallDart () const
virtual bool	ComputeCanDeoptimize () const
virtual bool	ComputeCanDeoptimizeAfterCall () const
virtual bool	HasUnknownSideEffects () const
virtual intptr_t	NumberOfInputsConsumedBeforeCall () const
	DECLARE_INSTRUCTION (Suspend)
virtual PRINT_OPERANDS_TO_SUPPORT Definition *	Canonicalize (FlowGraph *flow_graph)
Public Member Functions inherited from dart::TemplateDefinition< 2, Throws >
	TemplateDefinition (intptr_t deopt_id=DeoptId::kNone)
	TemplateDefinition (const InstructionSource &source, intptr_t deopt_id=DeoptId::kNone)
virtual Value *	InputAt (intptr_t i) const
virtual bool	MayThrow () const

Additional Inherited Members
Protected Attributes inherited from dart::TemplateDefinition< 2, Throws >
EmbeddedArray< Value *, N >	inputs_

Detailed Description

Definition at line 11423 of file il.h.

Member Enumeration Documentation

StubId

enum class dart::SuspendInstr::StubId

strong

Enumerator
kAwait
kAwaitWithTypeCheck
kYieldAsyncStar
kSuspendSyncStarAtStart
kSuspendSyncStarAtYield

Definition at line 11425 of file il.h.

                    {
    kAwait,
    kAwaitWithTypeCheck,
    kYieldAsyncStar,
    kSuspendSyncStarAtStart,
    kSuspendSyncStarAtYield,
  };

Constructor & Destructor Documentation

SuspendInstr()

dart::SuspendInstr::SuspendInstr ( const InstructionSource &  source, StubId  stub_id, Value *  operand, Value *  type_args, intptr_t  deopt_id, intptr_t  resume_deopt_id  )

inline

Definition at line 11433 of file il.h.

      : TemplateDefinition(source, deopt_id),
        stub_id_(stub_id),
        resume_deopt_id_(resume_deopt_id),
        token_pos_(source.token_pos) {
    SetInputAt(0, operand);
    if (has_type_args()) {
      SetInputAt(1, type_args);
    } else {
      ASSERT(type_args == nullptr);
    }
  }

Member Function Documentation

CanCallDart()

virtual bool dart::SuspendInstr::CanCallDart ( ) const

inlinevirtual

Definition at line 11464 of file il.h.

{ return true; }

Canonicalize()

Definition * dart::SuspendInstr::Canonicalize ( FlowGraph *  flow_graph )

virtual

Definition at line 8413 of file il.cc.

                                                            {
  if (stub_id() == StubId::kAwaitWithTypeCheck &&
      !operand()->Type()->CanBeFuture()) {
    type_args()->RemoveFromUseList();
    stub_id_ = StubId::kAwait;
  }
  return this;
}

ComputeCanDeoptimize()

virtual bool dart::SuspendInstr::ComputeCanDeoptimize ( ) const

inlinevirtual

Definition at line 11465 of file il.h.

{ return false; }

ComputeCanDeoptimizeAfterCall()

virtual bool dart::SuspendInstr::ComputeCanDeoptimizeAfterCall ( ) const

inlinevirtual

Definition at line 11466 of file il.h.

{ return true; }

DECLARE_INSTRUCTION()

dart::SuspendInstr::DECLARE_INSTRUCTION

(

Suspend

)

has_type_args()

bool dart::SuspendInstr::has_type_args ( ) const

inline

Definition at line 11451 of file il.h.

{ return stub_id_ == StubId::kAwaitWithTypeCheck; }

HasUnknownSideEffects()

virtual bool dart::SuspendInstr::HasUnknownSideEffects ( ) const

inlinevirtual

Definition at line 11467 of file il.h.

{ return true; }

InputCount()

virtual intptr_t dart::SuspendInstr::InputCount ( ) const

inlinevirtual

Reimplemented from dart::TemplateDefinition< 2, Throws >.

Definition at line 11452 of file il.h.

{ return has_type_args() ? 2 : 1; }

NumberOfInputsConsumedBeforeCall()

virtual intptr_t dart::SuspendInstr::NumberOfInputsConsumedBeforeCall ( ) const

inlinevirtual

Definition at line 11468 of file il.h.

                                                            {
    return InputCount();
  }

operand()

Value * dart::SuspendInstr::operand ( ) const

inline

Definition at line 11454 of file il.h.

{ return inputs_[0]; }

resume_deopt_id()

intptr_t dart::SuspendInstr::resume_deopt_id ( ) const

inline

Definition at line 11461 of file il.h.

{ return resume_deopt_id_; }

stub_id()

StubId dart::SuspendInstr::stub_id ( ) const

inline

Definition at line 11460 of file il.h.

{ return stub_id_; }

token_pos()

virtual TokenPosition dart::SuspendInstr::token_pos ( ) const

inlinevirtual

Definition at line 11462 of file il.h.

{ return token_pos_; }

type_args()

Value * dart::SuspendInstr::type_args ( ) const

inline

Definition at line 11455 of file il.h.

                           {
    ASSERT(has_type_args());
    return inputs_[1];
  }

---

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

• third_party/dart-lang/sdk/runtime/vm/compiler/backend/il.h
• third_party/dart-lang/sdk/runtime/vm/compiler/backend/il.cc