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perf: 解析入口改用线程本地分配器，稳态免系统调用

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彭俊皓
2026-10-12 03:35:12 +00:00
parent 75bb28671a
commit 9084aff761
8 changed files with 161 additions and 97 deletions
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crates/oxide_emit/src/module.rs
+24 -21
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@@ -958,27 +958,30 @@ impl Emitter {
fn compile_js_dep(
&self, resolved: &ResolvedModule, loader: &mut dyn ModuleSourceLoader, path_stack: &mut Vec<String>,
) -> Result<(IRFunction, bool, HashSet<String>, HashSet<String>), String> {
let alloc = oxide_parser::Allocator::default();
let program = oxide_parser::parse_module(&alloc, &resolved.source).map_err(|errs| {
format!(
"module parse error: {}",
errs.first().map(|e| e.message.as_str()).unwrap_or("parse failed")
)
})?;
let mut ctx = CompileCtx::new();
ctx.is_global_scope = false;
// 依赖模块经 parse_module 解析，顶层恒严格模式。
ctx.is_strict = true;
self.emit_module_into_ctx(&program, &resolved.path, loader, path_stack, &mut ctx, false)?;
let reassignable = ctx.module_live_dep;
let own_export_names = module_own_export_names(&program.body);
let var_scoped = module_var_scoped_export_names(&program.body);
Ok((
ctx.assemble_ir(ParamLayout { base: 0, count: 0 }, None),
reassignable,
own_export_names,
var_scoped,
))
// 线程本地分配器：依赖模块递归解析共享同一分配器，
// 重入深度守卫防止嵌套 reset 销毁外层 AST。
oxide_parser::with_parse_allocator(|alloc| {
let program = oxide_parser::parse_module(alloc, &resolved.source).map_err(|errs| {
format!(
"module parse error: {}",
errs.first().map(|e| e.message.as_str()).unwrap_or("parse failed")
)
})?;
let mut ctx = CompileCtx::new();
ctx.is_global_scope = false;
// 依赖模块经 parse_module 解析，顶层恒严格模式。
ctx.is_strict = true;
self.emit_module_into_ctx(&program, &resolved.path, loader, path_stack, &mut ctx, false)?;
let reassignable = ctx.module_live_dep;
let own_export_names = module_own_export_names(&program.body);
let var_scoped = module_var_scoped_export_names(&program.body);
Ok((
ctx.assemble_ir(ParamLayout { base: 0, count: 0 }, None),
reassignable,
own_export_names,
var_scoped,
))
})
}
/// 发 defer 预注册：对 deferred namespace 对象逐名 `__modulePreRegister`，