Andreas Kling 3e15e59cd1 LibJS: Move identifiers into a contiguous IdentifierArena ...

Replace per-AST-node Rc<Identifier> with a Copy IdentifierId index
into a Vec<Identifier> arena, plumbed through Parser, scope_collector,
codegen, ast_dump, and the FFI. The arena lives on the parser during
parse, ships out via Arc<AstArena> on ParsedProgram, and is shared by
each child Generator and FunctionPayload through Arc clones.

Eliminates the per-occurrence Rc::new in the parser: every identifier
reference, parameter binding, function name, class name, and
binding-pattern target lands in the arena's Vec instead of getting its
own malloc plus Rc control block. Identifier field reads in codegen
become direct array indexing.

Identifier still carries Cell<>-wrapped scope-analysis state, so
AstArena is not yet Send + Sync; the existing unsafe-impl-Send wrapper
on ParsedProgram covers cross-thread handoff. Removing the Cells is
the next step.

2026-05-05 13:53:51 +02:00

..

src

LibJS: Move identifiers into a contiguous IdentifierArena

2026-05-05 13:53:51 +02:00

build.rs

LibJS: Range-check enum-typed bytecode fields in the validator

2026-05-03 08:43:19 +02:00

Cargo.toml

LibJS: Allocate local variable indices in source order

2026-04-27 08:04:11 +02:00

cbindgen.toml

LibJS: Add bytecode validator scaffolding driven from Bytecode.def

2026-05-03 08:43:19 +02:00