dart::kernel::UnboxingInfoMetadataHelper Class Reference

#include <kernel_translation_helper.h>

Inheritance diagram for dart::kernel::UnboxingInfoMetadataHelper:

Public Member Functions
	UnboxingInfoMetadataHelper (KernelReaderHelper *helper)
UnboxingInfoMetadata *	GetUnboxingInfoMetadata (intptr_t node_offset)
Public Member Functions inherited from dart::kernel::MetadataHelper
	MetadataHelper (KernelReaderHelper *helper, const char *tag, bool precompiler_only)

Static Public Member Functions
static const char *	tag ()

Additional Inherited Members
Protected Member Functions inherited from dart::kernel::MetadataHelper
intptr_t	FindMetadataMapping (intptr_t node_offset)
intptr_t	GetNextMetadataPayloadOffset (intptr_t node_offset)
intptr_t	GetComponentMetadataPayloadOffset ()
Protected Attributes inherited from dart::kernel::MetadataHelper
KernelReaderHelper *	helper_
TranslationHelper &	translation_helper_

Detailed Description

Definition at line 1252 of file kernel_translation_helper.h.

Constructor & Destructor Documentation

UnboxingInfoMetadataHelper()

dart::kernel::UnboxingInfoMetadataHelper::UnboxingInfoMetadataHelper ( KernelReaderHelper *  helper )

explicit

Definition at line 2102 of file kernel_translation_helper.cc.

    : MetadataHelper(helper, tag(), /* precompiler_only = */ true) {}

Member Function Documentation

GetUnboxingInfoMetadata()

UnboxingInfoMetadata * dart::kernel::UnboxingInfoMetadataHelper::GetUnboxingInfoMetadata

(

intptr_t

node_offset

)

Definition at line 2106 of file kernel_translation_helper.cc.

                          {
  const intptr_t md_offset = GetNextMetadataPayloadOffset(node_offset);
 
  if (md_offset < 0) {
    return nullptr;
  }
 
  AlternativeReadingScopeWithNewData alt(&helper_->reader_,
                                         &H.metadata_payloads(), md_offset);
 
  const intptr_t num_args = helper_->ReadUInt();
  const auto info = new (helper_->zone_) UnboxingInfoMetadata();
  info->SetArgsCount(num_args);
  const int8_t flags = helper_->ReadByte();
  info->must_use_stack_calling_convention =
      (flags & UnboxingInfoMetadata::kMustUseStackCallingConventionFlag) != 0;
  info->has_overrides_with_less_direct_parameters =
      (flags &
       UnboxingInfoMetadata::kHasOverridesWithLessDirectParametersFlag) != 0;
  if ((flags & UnboxingInfoMetadata::kHasUnboxedParameterOrReturnValueFlag) !=
      0) {
    for (intptr_t i = 0; i < num_args; i++) {
      info->unboxed_args_info[i] = ReadUnboxingType();
    }
    info->return_info = ReadUnboxingType();
  }
  return info;
}

tag()

static const char * dart::kernel::UnboxingInfoMetadataHelper::tag ( )

inlinestatic

Definition at line 1254 of file kernel_translation_helper.h.

{ return "vm.unboxing-info.metadata"; }

---

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

• third_party/dart-lang/sdk/runtime/vm/compiler/frontend/kernel_translation_helper.h
• third_party/dart-lang/sdk/runtime/vm/compiler/frontend/kernel_translation_helper.cc