* Bind non-expando property assignments at toplevel
Previously, only property assignments with expando initialisers were
bound in top-level statements. Now, all property assignments are bound.
This requires a matching change in the checker to make sure that these
assignments remain context sensitive if their valueDeclaration is a
'real' declaration (ie a non assignment-declaration).
* Add baselines for new test
* Allow special assignments to have a contextual type of their declared type if present
* Expand change to cover all js special assignments
* Remove extraneous line
* Skip asterisks after newline when parsing JSDoc types
* Single boolean expression
* Test for parsing and printing multiline function signatures with *
* check for expando initializers in resolveEntityName
when resolving type parameters in a prototype property assignment
declaration. For example, this already works:
```js
/** @template T */
function f(x) { this.x = x }
/** @returns {T} */
f.protototype.m = function () { return this.x }
```
This now works too:
```js
/** @template T */
var f = function (x) { this.x = x }
/** @returns {T} */
f.prototype.m = function () { return this.x }
```
Fixes#26826
* Lookup type parameters on prototype-assignment methods
In the same way that they're looked up on prototype-property methods.
That is, this previously worked:
```js
/** @template T */
function f() { }
/** @param {T} p */
f.prototype.m = function () { }
```
And this now works too:
```js
/** @template T */
function f() { }
f.prototype = {
/** @param {T} p */
m() { }
}
```
Note that the baselines still have errors; I'll file a followup bug for
them.
* Look up types on property assignments too
* Allow JSContainers to merge with namespaces
Expando functions marked with JSContainer previously failed to merge
with namespaces. This change adds JSContainer to ValueModuleExcludes,
allowing this kind of merge.
* Improve symbol flags to fix namespace/expando merging
Calls to bindPropertyAssignment now provide which special assignment
kind they originated from. This allows better symbol flags to be set:
1. Property assignments get the FunctionScopedVariable flag, since they are
equivalent to a `namespace` exporting a `var`.
2. Prototype property assignments get the Method flag if the initialiser
is functionlike, and Property otherwise.
3. Prototype assignments get the flag Property.
(3) is still not entirely correct (it's missing the Prototype flag),
but is what existed previously. I'll try adding the Prototype flag to
see whether it changes any baselines.
* Add cross-file merge test
* Update missed baselines
* Namespace declarations are primary for merging purposes
Also, property-assignments go back to being property declarations, not
function-scoped variable declarations
* Revert unneeded changes
* Revert unneeded changes (in a codefix this time)
* Put JSContainer on all assignment declarations
This allows most of the new special-case merge code to go away. It now
uses the JSContainer special-case code, which already exists.
* Missed comment
* Fix extra newline lint
in object literal methods inside an object literal with a type
annotation.
Note that this does not change:
1. The type of `this` in object literal methods.
2. The fact that this-property assignments are still declarations. They
just don't block contextual typing like most declarations do.
This change is a bit expensive. It first calls getThisContainer, which
walks the tree upward. Then it calls checkThisExpression, which will
usually call getContextualType on the object literal method. If the new
code then returns true, it will proceed to redo much of that work.
Calling checkThisExpression should not cause incorrect circularity
failures; we only have to inspect the shape of the object literal and
not the types of its properties to determine its type.
* codeFixInferFromUsage: Assume that using `x[0]` means that `x` is an array
* Remove unnecessary '||' with non-falsy LHS
If only there were some kind of type-checker for JavaScript that could detect this sort of thing
* getEditsForFileRename: Avoid changing import specifier ending
* Support .json and .jsx extensions
* Restore typeRoots tests
* Fix json test
* When --jsx preserve is set, import ".tsx" file with ".jsx" extension
* Support ending preference in UserPreferences
Ryan Cavanaugh
Wesley Wigham
Andy
Nathan Shively-Sanders
Tim Schaub
Matt McCutchen
Sheetal Nandi
Wenlu Wang
Anders Hejlsberg