v8::internal::ReplacingVisitor Class Reference

Inheritance diagram for v8::internal::ReplacingVisitor:

Collaboration diagram for v8::internal::ReplacingVisitor:

Public Member Functions
	ReplacingVisitor (Code *original, Code *substitution)
virtual void	VisitPointers (Object **start, Object **end)
virtual void	VisitCodeEntry (Address entry)
virtual void	VisitCodeTarget (RelocInfo *rinfo)
virtual void	VisitDebugTarget (RelocInfo *rinfo)

Private Attributes
Code *	original_
Code *	substitution_

Detailed Description

Definition at line 929 of file liveedit.cc.

Constructor & Destructor Documentation

ReplacingVisitor()

v8::internal::ReplacingVisitor::ReplacingVisitor ( Code *  original, Code *  substitution  )

inlineexplicit

Definition at line 931 of file liveedit.cc.

    : original_(original), substitution_(substitution) {
  }

Member Function Documentation

VisitCodeEntry()

virtual void v8::internal::ReplacingVisitor::VisitCodeEntry ( Address  entry )

inlinevirtual

Definition at line 943 of file liveedit.cc.

                                             {
    if (Code::GetObjectFromEntryAddress(entry) == original_) {
      Address substitution_entry = substitution_->instruction_start();
      Memory::Address_at(entry) = substitution_entry;
    }
  }

References v8::internal::Memory::Address_at(), v8::internal::Code::GetObjectFromEntryAddress(), v8::internal::Code::instruction_start(), original_, and substitution_.

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VisitCodeTarget()

virtual void v8::internal::ReplacingVisitor::VisitCodeTarget ( RelocInfo *  rinfo )

inlinevirtual

Definition at line 950 of file liveedit.cc.

                                                 {
    if (RelocInfo::IsCodeTarget(rinfo->rmode()) &&
        Code::GetCodeFromTargetAddress(rinfo->target_address()) == original_) {
      Address substitution_entry = substitution_->instruction_start();
      rinfo->set_target_address(substitution_entry);
    }
  }

References v8::internal::Code::GetCodeFromTargetAddress(), v8::internal::Code::instruction_start(), v8::internal::RelocInfo::IsCodeTarget(), original_, v8::internal::RelocInfo::rmode(), and substitution_.

Referenced by VisitDebugTarget().

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VisitDebugTarget()

virtual void v8::internal::ReplacingVisitor::VisitDebugTarget ( RelocInfo *  rinfo )

inlinevirtual

Definition at line 958 of file liveedit.cc.

                                                  {
    VisitCodeTarget(rinfo);
  }

References VisitCodeTarget().

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VisitPointers()

virtual void v8::internal::ReplacingVisitor::VisitPointers ( Object **  start, Object **  end  )

inlinevirtual

Definition at line 935 of file liveedit.cc.

                                                           {
    for (Object** p = start; p < end; p++) {
      if (*p == original_) {
        *p = substitution_;
      }
    }
  }

References original_, and substitution_.

Member Data Documentation

original_

Code* v8::internal::ReplacingVisitor::original_

private

Definition at line 963 of file liveedit.cc.

Referenced by VisitCodeEntry(), VisitCodeTarget(), and VisitPointers().

substitution_

Code* v8::internal::ReplacingVisitor::substitution_

private

Definition at line 964 of file liveedit.cc.

Referenced by VisitCodeEntry(), VisitCodeTarget(), and VisitPointers().

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

• /mnt/V8SourceCode/src/liveedit.cc