* Add "use before defined" diagnostic
* Make "use before defined" diagnostic as related information to TS2454
* Add baseline tests for "use before defined"
* Add test for type alias union with undefined for "use before defined" diagnostic
* Update baselines
* Use empty object for invalid package json contents instead of undefined
Fixes#34726
* Behave as if package json doesnt exist in case of invalid json in package json
* Propagate 'undefined' instead of the optional type marker at an optional chain boundary
* Update src/compiler/types.ts
Co-Authored-By: Nathan Shively-Sanders <293473+sandersn@users.noreply.github.com>
* Fix alias naming and structure bugs in js declarations
* Add another test case and change condition for ns merge to require signature or export content
* Fix typo in comment
* Add isIntersectionConstituent to relation key
isIntersectionConstituent controls whether relation checking performs
excess property and common property checks. It is possible to fail a
relation check with excess property checks turned on, cache the result,
and then skip a relation check with excess property checks that would
have succeeded. #33133 provides an example of such a program.
Fixes#33133 the right way, so I reverted the fix at #33213Fixes#34762 (by reverting #33213)
Fixes#33944 -- I added the test from #34646
* Update comments in test
* resolve require with entity name postfix
For example, `require("x").c`. This is the value equivalent of
`import("x").a.b.c`, but the syntax tree is not as nicely designed for
this purpose.
Fixes#34802
* Add bug number to test
* Add optional chain test
When transforming a module declaration and block, parse tree nodes
contained in the module block have their parent pointers reset due to
`shouldEmitModuleDeclaration` calling into `isInstantiatedModule`, which
needs to set parent pointers to operate.
That causes a crash when later transforming any nodes within the module,
as retrieving their source file in `getSourceFileOfNode` (via
`getOrCreateEmitNode`) fails, due to their new synthesized parent nodes
not being in a source file.
This change avoids the issue by using the parse tree node in `ts.ts` to
decide whether a module declaration should be emitted (i.e. whether the
module contains values).
This means transformers cannot add values to modules that previously did
not contain any.
Fixes#34644.
* Fix incorrectly looking for position in call/new expression arguments when looking for indentation of type arguments
Fixes#32487
* Update src/services/formatting/smartIndenter.ts
Co-Authored-By: Nathan Shively-Sanders <293473+sandersn@users.noreply.github.com>
The constructor function code path in the return type checking of
signatures needs to pass the *merged* symbol of the declaration to
getDeclaredTypeOfClassOrInterface. Other callers of
getDeclaredTypeOfClassOrInterface do this, or used an already-merged
symbol.
Fixes#33993
* Show all matching enum flags in debug formatter
* Revert "Show all matching enum flags in debug formatter"
This reverts commit 073099722a.
* Same thing but simpler
* Lint
The word multi-line and multiline are used interchangeably within the file. Multiline seems to be the most used spelling of the word across the TypeScript repository codebase so a few strings have been updated to keep consistency within a single file. Additionally, corrected a minor capitalization mistake.
* Exclude ?? operator from true/false literal check in createFlowCondition
* Accept new API baselines
* Add tests
* Accept new baselines
* Address CR feedback
* Accept new API baselines
