Closed Bug 1416002 Opened 7 years ago Closed 4 years ago

Investigate caching LazyScript delazification

Categories

(Core :: JavaScript Engine, enhancement, P3)

Product:
Core
Component:
JavaScript Engine
Type:
enhancement

Tracking

()

Status:
RESOLVED INCOMPLETE
Tracking Flags:
Tracking Status
thunderbird_esr52 --- wontfix
firefox-esr52 --- wontfix
firefox56 --- wontfix
firefox57 --- wontfix
firefox58 --- wontfix

People

(Reporter: tcampbell, Unassigned)

References

Details

In Bug 883154, we attempted to cache bytecode construction of compatible LazyScripts within a JSRuntime.

Unfortunately the code was buggy and was removed in Bug 1260894. We should investigate if there is still motivation to have a LazyScriptCache.

To add a new LazyScriptCache we need to be careful about complexities around compile flags such as non-syntactic compiles, issues around function modifiers like async, changes to GC behavior.
status-firefox56: --- → wontfix
status-firefox57: --- → wontfix
status-firefox58: --- → wontfix
status-firefox-esr52: --- → wontfix
status-thunderbird_esr52: --- → wontfix
Priority: -- → P3
See Also: → 1393977

Bug 1529456 and Bug 1586771 are changing a lot of things in this area and any new caching system will not resemble the old LazyScriptCache at all.

Status: NEW → RESOLVED
Closed: 4 years ago
Resolution: --- → INCOMPLETE
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