Previously, TypeScript would resolve the reified types for the
`design:types` decorator emit in the regular `currentScope`. That scope
does not include class declaration bodies.
However when reifying types, class declarations do introduce a new scope
for any `TypeVariable`s declared on them. Because TS resolved the
EntityName for such types against the parent scope (e.g. the source
file), not the class scope, TypeScript would either fail to resolve the type (giving `TypeReferenceSerializationKind.Unknown`), or
incorrectly resolve to a different, accidentally matching symbol in the outer scope (giving `TypeWithConstructSignatureAndValue`).
This would result in an emit referencing an undeclared symbol, or
mis-referencing the wrong symbol.
__metadata("design:type", typeof (_a = typeof TypeVariable !== "undefined" && TypeVariable) === "function" && _a || Object)
__metadata("design:type", TypeVariable)
This change special cases `currentScope` for
`serializeTypeReferenceNode` to use a class scope, if present. This
changes the emit for a `TypeVariable` back to `Object`:
__metadata("design:type", Object)
* Multifaceted approach to performantly enabling fileExists outside of the synchronize step in the emit host
* make cache undefinable and handle correctly
* Remove unneeded cast
* Readd assert
* More useful failure messager
That is, only nest them if their name matches the provided parent name.
Otherwise do not nest them.
Note that this commit changes the behaviour of an incorrect typedef that
contains both an `@type` child tag and `@property` child tags.
Previously, the `@type` would be incorrectly nested under a `@property`
tag with type `object`, just like `@property` tags would be. Now, the
`@type` tag causes the entire typedef to ignore the `@property` tags and
treat the typedef as if it were an instance of the
typedef-and-nested-type pattern:
```js
/**
* @typedef {Object} name
* @type {{ the, actual, type }}
*/
```
* Don't recommend to install '@types/foo' if that already exists
* Add different extra diagnostic text if the @types package exists
* Update API (#24966)
* getDeclarationIdentifier handles undefined name
getNameOfDeclaration actually doesn't handle all declarations, only
those that produce names that could be reasonably used as an identifier.
Until now, getDeclarationIdentifier assumed that getNameOfDeclaration
always returned a name. This caused crashes whenever we tried to get the
name of something like a Constructor.
* Add test and baselines
* getNameOfDeclaration can return undefined
This requires all callers to handle it, which turns out now to be too
disruptive.
* Fix lint
