v8::internal::LiveEdit Class Reference

#include <liveedit.h>

Inheritance diagram for v8::internal::LiveEdit:

Collaboration diagram for v8::internal::LiveEdit:

Static Public Member Functions
static void	CompareStrings (Isolate *isolate, Handle< String > a, Handle< String > b, std::vector< SourceChangeRange > *diffs)
static int	TranslatePosition (const std::vector< SourceChangeRange > &changed, int position)
static void	PatchScript (Isolate *isolate, Handle< Script > script, Handle< String > source, bool preview, bool allow_top_frame_live_editing, debug::LiveEditResult *result)

Detailed Description

Liveedit step-by-step:

1. calculate diff between old source and new source,
2. map function literals from old source to new source,
3. create new script for new_source,
4. mark literals with changed code as changed, all others as unchanged,
5. check that for changed literals there are no:
   • running generators in the heap,
   • non droppable frames (e.g. running generator) above them on stack.
6. mark the bottom most frame with changed function as scheduled for restart if any,
7. for unchanged functions:
   • deoptimize,
   • remove from cache,
   • update source positions,
   • move to new script,
   • reset feedback information and preparsed scope information if any,
   • replace any sfi in constant pool with changed one if any.
8. for changed functions:
   • deoptimize
   • remove from cache,
   • reset feedback information,
   • update all links from js functions to old shared with new one.
9. swap scripts.

Definition at line 57 of file liveedit.h.

Member Function Documentation

CompareStrings()

void v8::internal::LiveEdit::CompareStrings ( Isolate * isolate, Handle< String > a, Handle< String > b, std::vector< SourceChangeRange > * diffs )

static

Definition at line 1084 of file liveedit.cc.

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PatchScript()

void v8::internal::LiveEdit::PatchScript ( Isolate * isolate, Handle< Script > script, Handle< String > source, bool preview, bool allow_top_frame_live_editing, debug::LiveEditResult * result )

static

Definition at line 834 of file liveedit.cc.

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TranslatePosition()

int v8::internal::LiveEdit::TranslatePosition ( const std::vector< SourceChangeRange > & changed, int position )

static

Definition at line 1102 of file liveedit.cc.

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

• src/debug/liveedit.h
• src/debug/liveedit.cc