* Add fastpath to isRelatedTo for type references
* Do not check intersections or unions to ignore propegating reference flags, properly set comparing jsx flag
* Re-remove unneeded check
* Just check for TypeFlags.Object
* Remove else clause
* Error on missing BigInt in ES2020 too.
Previously it was only on ESNext, but bigint ships in ES 2020.
There are no tests for this; passing `false` doesn't cause any tests to
fail at least.
* add tests
* Avoid circular reference in this-property assignments
To do this, don't check this-property assigments that have the
this-property of the lhs appearing somewhere on the rhs:
```js
class C {
m() {
this.x = 12
this.x = this.x + this.y
}
}
```
I tried suppressing the circularity error, but because we cache the
first type discovered for a property, this still results in an implicit
any for `x` in the previous example. It just doesn't have an error.
Fixes#35099
* Add test case + rename function
* Use isMatchingReference
This fixes two bugs in the parseJSDocCommentWorker().
1. The initial indent was calculated wrongly. It was set to the
difference between the index of the last newline or beginning of file
and the current start marker (position of /**). By calculating it
this way, the newline character itself is counted as indentation
character as well. The initial indent is used as margin for the
whole comment. The margin contains the amount of characters to skip
before the actual content or payload of a comment line. The algorithm
does not skip non-whitespace characters at the beginning of the
content, but it would strip away one whitespace character for
indented content (which does matter, if there is e.g. a Markdown
code block with indentation in the comment).
2. When reducing initial whitespace sequences of comment lines by the
remaining margin the algorithm cut off one character too much. This
might have been introduced to fix 1. It had a similar effect as 1.
Previously this was only an error when useDefineForClassFields: true,
but now it's an error for all code. This is a rare mistake to make, and
usually only occurs in code written before `readonly` was available.
Codefix to come in subsequent commits.
Get the `declaration` container just once instead of in three places.
(Minor change: one place used to start looking from
`declaration.parent`, but that shouldn't make any difference.) Also,
don't pass it to the helper functions since they're local anyway.
This only applies in JS, where `@template` tags can apply to
initialisers of variable declarations:
```js
/**
* @template T
* @returns {(b: T) => T}
*/
const seq = a => b => b
```
Fixes#36201
* Consolidated extra property check with intersections
* Fix comment
* Add tests
* Properly propagate intersectionState
* Route property check through recursive type tracking logic
* Accept new baselines
* Skip check when apparent type of source is never
* Accept new baselines
* Only check when apparent type of source is a structured type
* Fix serialisation of static class members in JS
Previously static class members would be treated the same way as expando
namespace assignments to a class:
```ts
class C {
static get x() { return 1 }
}
C.y = 12
```
This PR adds a syntactic check to the static/namespace filter that
treats symbols whose valueDeclaration.parent is a class as statics.
Fixes#37289
* fix messed-up indent
* Extract function
Wesley Wigham
TypeScript Bot
Pierre-Antoine Mills
Alexander T
Nathan Shively-Sanders
Jacob Bandes-Storch
Neonit
Anders Hejlsberg
Wesley Wigham
Orta
Andrew Branch
Ron Buckton
Ravi van Rooijen
csigs
csigs
zhangciwu
Eli Barzilay
Bannerets