feat: add Module::EvaluateForImportDefer and GetModuleNamespace with phase#1965
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…phase Add Rust bindings for V8 APIs needed for dynamic `import.defer()`: - `Module::evaluate_for_import_defer()` - evaluates async transitive dependencies eagerly so deferred namespace access can be synchronous. Returns a Promise that resolves when dependencies are ready. - `Module::get_module_namespace_with_phase()` - returns the module namespace for a given import phase. For `ModuleImportPhase::kDefer`, returns a deferred namespace that triggers evaluation on first property access. These APIs were added to V8 in commit f2016e19b33a (v8/v8@f2016e19). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Add Rust bindings for V8 APIs needed for dynamic
import.defer()support (TC39 import defer proposal):Module::evaluate_for_import_defer(scope)→Option<Local<Value>>- Evaluates async transitive dependencies eagerly so deferred namespace access can be synchronous. Returns a Promise.Module::get_module_namespace_with_phase(phase)→Local<Value>- Returns the module namespace for a givenModuleImportPhase. ForkDefer, returns a deferred namespace that triggers evaluation on first property access.These wrap the V8 C++ APIs added in v8/v8@f2016e19.
Needed by denoland/deno#32360.
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