@Injectable deps entries written as [new Optional(), new Self(), Dep] inject the array as the token

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4/5
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3-5 天
新手友好度
52/100
Issue 类型
缺陷
描述清晰度
描述清楚
活跃度
活跃
技术栈
rust, typescript
领域
compilers

调研方向

Start with injectable/decorator.rs and trace how extract_dependency handles each deps entry; compare it with ngtsc’s getDep in compiler-cli/src/ngtsc/annotations/src/injectable.ts. Run the named ngtsc_spec.ts case, including the array-literal token scenario. Done means flagged array entries produce the token and injection flags expected by ngc across the listed forms.

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描述

Summary

In @Injectable({ useFactory | useClass, deps }), a dep written as flags plus a token ([new Optional(), new Self(), Dep]) compiles as one token: the whole array goes to ɵɵinject, so injection fails at runtime. ngc reads it as the token Dep with the Optional and Self flags.

Found by running Angular's ngtsc spec ngtsc_spec.ts: "should compile Injectables with providedIn and factory with deps with array literal tokens" against oxc.

Reproduction

import {Injectable, Optional, Self} from '@angular/core';

@Injectable()
export class Dep {}

@Injectable({
  providedIn: 'root',
  useFactory: (dep: Dep) => new Service(dep),
  deps: [[new Optional(), new Self(), Dep]],
})
export class Service {
  constructor(dep: Dep) {}
}
Actual
__ngConditionalFactory__ = ((dep) => new Service(dep))(i0.ɵɵinject([new Optional(), new Self(), Dep]));
Expected (ngc)
__ngConditionalFactory__ = ((dep) => new Service(dep))(i0.ɵɵinject(Dep, 10));

useClass + deps, the bare form ([Optional, SkipSelf, Dep]) and new Inject(TOKEN) hit the same problem.

Cause

extract_dependency (injectable/decorator.rs) turns each deps element straight into a token. It has no port of ngtsc's getDep (compiler-cli/src/ngtsc/annotations/src/injectable.ts), which splits an array entry into a token and Inject/Optional/Self/SkipSelf flags.

主要语言
Rust
星标
245
派生
26
平均合并
22 小时 27 分钟
30 天内合并 PR
106

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