Microsoft/TypeScript

Leak of `noImplicitAny` checking with private static property

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#6,415 opened on Jan 9, 2016

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 (10 comments) (0 reactions) (0 assignees)TypeScript (6,726 forks)batch import
BugDomain: check: Type InferenceHelp Wanted

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Description

declare class C {
  private static implicitAnyTypeProperty;
  static inherited: typeof C.implicitAnyTypeProperty;
  inherited: typeof C.implicitAnyTypeProperty;
}

expected:

$ node_modules/.bin/tsc index --noImplicitAny
index.ts(2,3): error TS7008: Member 'implicitAnyTypeProperty' implicitly has an 'any' type.

actual:

$ node_modules/.bin/tsc index --noImplicitAny

Contributor guide

Research direction
Investigate why noImplicitAny does not produce an error for private static property 'implicitAnyTypeProperty' when accessed via typeof in static inherited member and instance inherited member.
Tech stack
typescript
Domain
compilers
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
TypeScriptGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50