Andreas Kling 41a072bded LibJS: Fast non-local variable access :^) ...

This patch introduces the "environment coordinate" concept, which
encodes the distance from a variable access to the binding it ends up
resolving to.

EnvironmentCoordinate has two fields:

    - hops:  The number of hops up the lexical environment chain we have
             to make before getting to the resolved binding.

    - index: The index of the resolved binding within its declarative
             environment record.

Whenever a variable lookup resolves somewhere inside a declarative
environment, we now cache the coordinates and reuse them in subsequent
lookups. This is achieved via a coordinate cache in JS::Identifier.

Note that non-strict direct eval() breaks this optimization and so it
will not be performed if the resolved environment has been permanently
screwed by eval().

This makes variable access *significantly* faster. :^)

2021-10-07 11:53:18 +02:00

..

Bytecode

LibJS: Add an optimization to avoid needless arguments object creation

2021-10-05 10:15:14 +01:00

Heap

LibJS: Make WeakContainer pruning do less work

2021-10-05 18:52:00 +02:00

Runtime

LibJS: Fast non-local variable access :^)

2021-10-07 11:53:18 +02:00

Tests

LibJS: Fast non-local variable access :^)

2021-10-07 11:53:18 +02:00

AST.cpp

LibJS: Fast non-local variable access :^)

2021-10-07 11:53:18 +02:00

AST.h

LibJS: Fast non-local variable access :^)

2021-10-07 11:53:18 +02:00

CMakeLists.txt

LibJS: Rename OrdinaryFunctionObject to ECMAScriptFunctionObject

2021-09-25 17:51:30 +02:00

Console.cpp

…

Console.h

…

Forward.h

LibJS: Add ECMAScriptFunctionObject forward declaration

2021-09-25 17:51:30 +02:00

Interpreter.cpp

LibJS: Fix that the interpreter did not clear the unwind status

2021-10-03 17:42:05 +02:00

Interpreter.h

LibJS: Make scoping follow the spec

2021-09-30 08:16:32 +01:00

Lexer.cpp

LibJS: Add a specific test for invalid unicode characters in the lexer

2021-10-03 17:42:05 +02:00

Lexer.h

LibJS: Make Lexer::s_keywords store keywords as FlyString

2021-09-18 19:54:24 +02:00

MarkupGenerator.cpp

LibJS: Convert Object::get() to ThrowCompletionOr

2021-10-03 20:14:03 +01:00

MarkupGenerator.h

…

Module.cpp

LibJS: Add a barebones Module class

2021-09-14 21:41:51 +02:00

Module.h

LibJS: Add a barebones Module class

2021-09-14 21:41:51 +02:00

Parser.cpp

LibJS: Add an optimization to avoid needless arguments object creation

2021-10-05 10:15:14 +01:00

Parser.h

LibJS: Add an optimization to avoid needless arguments object creation

2021-10-05 10:15:14 +01:00

Script.cpp

LibJS+LibWeb: Move script parse time logging from JS::Script to LibWeb

2021-09-14 21:41:51 +02:00

Script.h

LibJS+LibWeb: Let JS::Script::parse() return a list of errors (on error)

2021-09-14 21:41:51 +02:00

SourceRange.h

LibJS: Add missing headers

2021-10-06 23:52:40 +01:00

SourceTextModule.cpp

LibJS: Add a barebones SourceTextModule class

2021-09-14 21:41:51 +02:00

SourceTextModule.h

LibJS: Add a barebones SourceTextModule class

2021-09-14 21:41:51 +02:00

SyntaxHighlighter.cpp

…

SyntaxHighlighter.h

…

Token.cpp

…

Token.h

Libraries: Use AK::Variant default initialization where appropriate

2021-09-21 04:22:52 +04:30