In JS, `object` is treated as 'any'

TypeScript Version: 3.0.0-dev.20180711

Code

/** @typedef {object} T */
/** @type {T} */
const x = 0;

Expected behavior:

Error at x: 0 is not an object.

Actual behavior:

No error.

[sandersn]

I think this is a result of Object/object being treated as any. For example, /** @typedef {{}} T */ produces an error.

[sandersn]

In getTypeFromTypeNode, we have:

case SyntaxKind.ObjectKeyword:
    return node.flags & NodeFlags.JavaScriptFile ? anyType : nonPrimitiveType

This was originally added in #17082. We could revisit this decision, but case-insensitive primitives and Object as any are good decisions in my opinion.