Commit graph

8045 commits

Author SHA1 Message Date
Wesley Wigham 8268f2adec
Avoid bogus circularity error on context sensitive constructor property assignments (#44601)
* Avoid bogus circularity error on context sensitive constructor property assignments

* Add JS case and ensure its fixed
2021-07-15 17:06:56 -07:00
jjangga0214 2b8296b7ad
chore(typo): fix comment (#45016) 2021-07-14 09:28:48 -07:00
Jean Pierre 40ec8392a1
Fixes JSDoc @type function with variable args is interpreted incorrectly (#44864)
* Fixes #44386

* Add test

* Move test from fourslash to conformance
2021-07-13 17:17:24 -07:00
caojoshua acdf62fa1e
Fix "Union types are not being narrowed down correctly in 4.3 #44401" (#44771)
* Fix "Union types are not being narrowed down correctly in 4.3 #44401"

* On undefined constraint, add the original type to constraints.
2021-07-13 11:02:18 -07:00
Ron Buckton 66c3063b06
Add collision check for 'Reflect' when using super in static initializers (#44876)
* Add collision check for 'Reflect' when using super in static initializers

* PR feedback

* Accept baseline for new failing test
2021-07-10 12:48:54 -07:00
Andrew Branch e881a69939
Detect circularities printing recursive conditional types (#43733) 2021-07-08 09:19:58 -07:00
Anders Hejlsberg 8e01a86c01
Consistently ignore attributes with hyphenated names in JSX (#44873)
* Consistently skip attributes with hyphenated names in JSX

* Add regression test

* Accept new baselines

* Fix tests

* Accept new baselines
2021-07-06 10:29:51 -10:00
Ron Buckton 8b496ed34c
Fix class name reference in class expr (#44877) 2021-07-02 18:37:23 -07:00
Daniel Rosenwasser 248b2c3fc1
Further optional delete corrections (#44862)
* Add more tests.

* Accepted baselines.

* Switch to testing the symbol's flags.

* Accepted baselines.
2021-07-01 18:44:22 -07:00
Daniel Rosenwasser e3d6189e3a
Correctly check for 'delete' on optional properties in 'exactOptionalPropertyTypes'. (#44854)
* Check for optionality in 'delete'.

* Accepted baselines.
2021-07-01 15:19:11 -07:00
Daniel Rosenwasser 9d443b76aa
Update LKG to enable improved narrowing in 4.4. (#44842)
* Update LKG.

* Remove unnecessary assertions.
2021-07-01 12:21:27 -07:00
Zzzen 813ddf7909
ensure export modifier is used before default modifier (#44570)
* ensure export modifier is used before default modifier

* gracefully handle `default function`

* Revert "gracefully handle `default function`"

This reverts commit 1d8e288754.

* give better error message on default without leading export
2021-06-30 09:43:14 -07:00
Oleksandr T 5c8d76347c
fix(44448): disallow 'delete' operator for optional properties (#44612) 2021-06-29 16:56:45 -07:00
Anders Hejlsberg 4c19873b64
Validate symbol-named properties against symbol index signatures (#44815)
* Validate symbols against both symbol and string index signatures

* Add tests

* Accept new baselines
2021-06-29 11:53:07 -10:00
Oleksandr T 114f68cd3d
fix(44725): handle this parameter in tagged template call (#44734) 2021-06-29 14:11:35 -07:00
Anders Hejlsberg 5f8a9e5181
Fix constant reference check in CFA (#44762)
* Check entire access path is constant when narrowing by inlining

* Add tests

* Accept new baselines

* Added test cases for parameter properties.

* Accepted baselines.

Co-authored-by: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
2021-06-28 16:41:17 -07:00
Andrew Branch 54b913cf31
Issue unawaited promise error on symbol-less expressions (#44491)
* Issue unawaited promise error on symbol-less expressions

* Use same behavior for call expressions

* Revert "Use same behavior for call expressions"

This reverts commit 60d58132e4.
2021-06-28 12:35:58 -05:00
Wenlu Wang dc237b317e
Change static fields emits (#43114)
* use emit into iife

* Update emit

* Revert un-related changes

* Allow super in static context

* Allow this and super in static property declaration

* Add more tests

* Avoid errors

* Accept baseline

* Accept baseline

* Add decorated classes test

* Add errors

* Avoid this in emitter

* make lint happy

* Add class expression tests

* Add computed name test

* Avoid super if target below es6

* Adjust function boundary

* Add internal

* Fix minor CR issues

* accept baseline

* Update behavior

* Avoid spaces

* Make lint happy

* Avoid function boundary utils

* Update baseline

* Avoid errors

* Accept baseline

* Accept baseline

* Accept baseline

* Accept baseline

* Use substitutions

* Full coverage for super, this, merge static and private context

* Fix use-before-def in static fields

Co-authored-by: Ron Buckton <ron.buckton@microsoft.com>
2021-06-25 15:49:27 -07:00
Anders Hejlsberg 8058619aed
Control flow analysis of aliased conditional expressions and discriminants (#44730)
* CFA inlining of conditional expressions referenced by const variables

* Accept new baselines

* Add tests

* Accept new baselines

* Increase inlining limit to 5 levels per design meeting discussion
2021-06-25 13:59:58 -07:00
Wenlu Wang 906cbd2715
Proposal class static block support (#43370)
* Class static block (#9)

* Add types factory and parser

* Add some case

* Make class static block as a container

* Update cases

* Add visitor

* Add emitter and more compile target

* Check boundary of break and continue

* Add basic transformer

* Fix emit behavior

* Add more tests

* Add friend tests

* Update baseline

* Fix cr issues

* Accept baseline

* Add decorator and modifier check

* Add functional boundary check

* Fix conflict

* Fix computed prop name within context

* Add more tests

* Update baseline

* Avoid invalid test baseline

* Support use before initialize check

* wip

* Fix class static block context

* Fix checks

* Fix missing case

* Improve assert message

* Accept baseline

* Avoid new context

* Update diagnostic message

* Fix name collision

* Fix targets

* Avoid unnecessary files

* Add more case

* Add more test cases

* Fix strict mode function declaration

* Avoid private fields initializer if no private identifier references

* Avoid private fields and add more test case

* Add more case

* Add tests and support for related services functionality

* Fix this reference in static block

* Split parser diagnostic and binder diagnostic

Co-authored-by: Ron Buckton <ron.buckton@microsoft.com>
2021-06-25 09:24:05 -07:00
Wenlu Wang 66b4ba4b35
Add inlay hints support (#42089)
* Add signature arguments label support

* Support rest parameters and destruction

* make lint

* Fix tuple rest parameters

* Adjust name styles

* Rename to inline hints

* Partition inline hints

* Adjust range pred

* Add function expression like hints

* Support configure inline hints

* Display hints in single line

* Add test suits and tests

* Add range tests

* Support more hints

* Add more options

* Fix logical

* Add more cases

* Support call chains

* Rename options

* Match lastest protocol

* Update protocol changes

* Support context value and hover message

* Revert "Support context value and hover message"

This reverts commit 37a7089633.

* Revert "Update protocol changes"

This reverts commit e5ca31bc30.

* Add hover message

* Accept baseline

* Update src/services/inlineHints.ts

Co-authored-by: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>

* Update src/services/inlineHints.ts

Co-authored-by: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>

* Cache across the program

* Fix possible undefined

* Update protocol changes

* Fix missing property

* Make lint happy

* Avoid call chain hints

* I'm bad

* Add whitespace before type

* Add more tests

* Should care about jsdoc

* Support complex rest parameter

* Avoid module symbol  hints

* Care about leading comments

* Fix CR issues

* Avoid changes

* Simplify comments contains

* Fix CR issues

* Accept baseline

* Check parameter name before create regex

* Rename option

* Avoid makers

* Skip parens for argument

* Fix CR issues

* Fix enums

* Accept baseline

Co-authored-by: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
2021-06-24 23:06:34 -07:00
Zzzen ce8e873bf8
regard TemplateLiteral as discriminant property (#44569) 2021-06-23 15:48:39 -07:00
Anders Hejlsberg 61ccc49a7b
Fix check for overwritten properties in object spreads (#44696)
* Fix check for overwritten properties in object spreads

* Accept new baselines

* Add tests

* Accept new baselines
2021-06-22 14:39:33 -07:00
exoticknight 9708022537
Fix 'arguments' check in class field initializer or static initialization block (#44393)
* Fix 'arguments' check in class field initializer or static initialization block

* return errorType

* Merge branch 'master' of https://github.com/exoticknight/TypeScript

* use isInPropertyInitializer

fix Diagnostics message
2021-06-21 16:57:48 -07:00
Anders Hejlsberg 0e905be42b
Index signatures for symbols and template literal strings (#44512)
* Switch index signature storage to 'indexInfos: IndexInfo[]' property

* Accept new baselines

* Remove another usage of IndexKind enum

* Update getIndexedAccessType and resolveMappedTypeMembers

* Accept new baselines

* Update grammar checking for index signatures

* Accept new baselines

* Consider all index signatures in mapped types and union types

* Accept new baselines

* Update getIndexType

* Accept new baselines

* Intersect multiple applicable index signatures

* Use getApplicableIndexInfo instead of hardwired string/number handling

* Update index signature relationship checking

* Report type for which index signature is missing

* Report type for which index signature is missing

* Accept new baselines

* Make 'number' index signatures consistently apply to numeric strings

* Accept new baselines

* Update fourslash test

* Revise index constraint checking

* Accept new baselines

* Update error messages

* Accept new baselines

* Update type inference from index signatures

* Update isKnownProperty

* Update contextual typing based on index signatures

* Accept new baselines

* Support union types in index signature declarations

* Accept new baselines

* Check duplicate index signatures / remove redundant template literals from unions with string

* Accept new baselines

* Include key type in diagnostic / check symbol-named properties

* Accept new baselines

* Minor fix

* Add tests

* Accept new baselines

* Add optimized findApplicableIndexInfoForName

* Accept new baselines

* Another place we don't need to obtain literal type for property name

* Accept new baselines

* Don't create literal types that are going to be discarded

* Individual maps for string, number, bigint, and enum literal types

* Remove ineffective optimizations

* Accept new baselines

* Permit intersections as key types in index signatures

* Index expression in element access is template literal context

* Add tests

* Accept new baselines

* Symbol index signatures from object literals with computed symbol properties

* Accept new baselines

* Add more tests

* Accept new baselines

* Implement Go To Definition for all applicable index signatures

* Add fourslash test

* Accept new API baselines
2021-06-21 11:25:42 -07:00
Ryan Cavanaugh 5afe42e14e
Rename strictOptionalProperties -> exactOptionalPropertyTypes and remove from strict family (#44626) 2021-06-17 15:12:19 -07:00
Oleksandr T eee34d539c
feat(28491): add QF to declare missing properties (#44576) 2021-06-17 11:12:29 -07:00
Zzzen 8dbb2cd5fb
allow this in typeQuery (#43898)
* allow `this` in typeQuery

* add tests

* get this type as expression

* handle nested nodes

* update baselines
2021-06-17 07:52:20 -07:00
Anders Hejlsberg d46d82c9bd
Slightly more conservative check in isConstraintPosition function (#44621)
* Slightly more conservative check in isConstraintPosition function

* Update comment

* Add tests
2021-06-16 17:16:32 -07:00
Anders Hejlsberg 97b4063d73
Don't attach declarations to symbols in mapped types with 'as XXX' clauses (#44609)
* Don't attach declarations to symbols in mapped types with 'as XXX' clauses

* Add test (and tweak comment)

Co-authored-by: Eli Barzilay <eli@barzilay.org>
2021-06-16 16:07:33 -07:00
Anders Hejlsberg a3eadfe905
Skip base type checks that can cause circularities (#44615)
* Don't do base type checks that can cause circularities

* Add regression tests
2021-06-16 13:36:43 -07:00
Armando Aguirre d0159a8891
Fix late bound method name assignment, added tests (#43344)
* Fix late bound method name assignment, added tests

* Refactor bindDynamicallyNamedthisPropertyAssignment

* PR comments

* Rollback allowJscheck fix
2021-06-16 12:46:00 -07:00
Anders Hejlsberg 6bb1f0792b
Fixes to inference and mapped types in --strictOptionalProperties mode (#44595)
* Fix Required<T> and inference to index signatures in --strictOptionalProperties mode

* Add tests

* Accept new baselines
2021-06-15 14:16:38 -07:00
Nathan Shively-Sanders e53f19f8f2
Issue "Cannot find name did-you-mean" errors as suggestions in plain JS (#44271)
* Always issue cannot find name did-you-mean error

This PR issues "cannot find ${name}, did you mean ${name}" errors for
identifiers and propery access expressions in JS files *without*
`// @ts-check` and without `// @ts-nocheck`. This brings some benefits of
Typescript's binder to all Javascript users, even those who haven't
opted into Typescript checking.

```js
export var inModule = 1
inmodule.toFixed() // errors on exports

function f() {
    var locals = 2
    locale.toFixed() // errors on locals
}
var object = {
    spaaace: 3
}
object.spaaaace // error on read
object.spaace = 2 // error on write
object.fresh = 12 // OK, no spelling correction to offer
```

To disable the errors, add `// @ts-nocheck` to the file. To get the
normal checkJs experience, add `// @ts-check`.

== Why This Works ==

In a word: precision. This change has low recall &mdash; it misses lots
of correct errors that would be nice to show &mdash; but it has high
precision: almost all the errors it shows are correct. And they come
with a suggested correction.

Here are the ingredients:

1. For unchecked JS files, the compiler suppresses all errors except
two did-you-mean name resolution errors.
2. Did-you-mean spelling correction is already tuned for high
precision/low recall, and doesn't show many bogus errors even in JS.
3. For identifiers, the error is suppressed for suggestions from global files.
These are often DOM feature detection, for example.
4. For property accesses, the error is suppressed for suggestions from
other files, for the same reason.
5. For property accesses, the error is suppressed for `this` property
accesses because the compiler doesn't understand JS constructor
functions well enough.
In particular, it doesn't understand any inheritance patterns.

== Work Remaining ==

1. Code cleanup.
2. Fix a couple of failures in existing tests.
3. Suppress errors on property access suggestions from large objects.
4. Combine (3) and (4) above to suppress errors on suggestions from other, global files.
5. A little more testing on random files to make sure that precision
is good there too.
6. Have people from the regular Code editor meeting test the code and
suggest ideas.

* all (most?) tests pass

* NOW they all pass

* add tonnes of semi-colons

* restore this.x check+add a test case

* make ts-ignore/no-check codefix work in unchecked js

* Issues errors only in the language service

* add a few more tests

* fix incorrect parentheses

* More cleanup in program.ts

* Improve readability of isExcludedJSError

* make diff in program.ts smaller via closure

* Switch unchecked JS did-you-mean to suggestion

Instead of selectively letting errors through.

* undo more missed changes

* disallow ignoring suggestions

* Issue different messages for plain JS than others

Straw text for the messages, I just changed the modals to avoid name
collisions.
2021-06-15 08:54:08 -07:00
Anders Hejlsberg 5540364c12
Correct tuple relations in --strictOptionalProperties mode (#44568)
* Fix relations for optional elements in tuples with --strictOptionalProperties

* Accept new baselines

* Add regression test

* Address CR feedback
2021-06-13 12:53:13 -07:00
Anders Hejlsberg 6a1623d413
Ensure singleton types always compare identical (#44565)
* Singleton types should compare identical + fix boolean types

* Add tests

* Accept new baselines
2021-06-13 12:51:36 -07:00
Ron Buckton a0c44b26b7
Improve __spreadArray perf, and other fixes related to SpreadElement (#44527)
* Improve __spreadArray perf, fix array packing and trailing omitted expressions

* Ensure __spreadArray is backwards-compatible

* Add signature restriction for __spreadArray

* Added reusable true/false literals
2021-06-11 16:21:55 -07:00
Oleksandr T 591be7bece
feat(44263): add quick fix for misspelled override error (#44266) 2021-06-08 15:17:56 -07:00
Andrew Branch 703c1bc69d
Include type reference directives in symlink cache, wait until program is present to create it (#44259)
* Fix discovery of more pnpm symlinks

* Add some tests

* Never show pnpm paths in auto imports, even if there’s no other path

* Import statement completions can return none

* Fix tests

* Add failing test showing poor symlink cache reuse

* Fix test, fails for right reasons now

* Preserve cache built up during program creation, then fill in with program resolutions

* Remove obsolete comment

* Remove obsolete type assertion

* Revert fully filtering out ignored paths
2021-06-08 12:06:55 -05:00
Daniel Rosenwasser 9906092db2
Add flag to change catch variables' default types to unknown (#41013)
* Add test case for 'useUnknownInCatchVariables'.

* Add new 'useUnknownInCatchVariables' flag.

* Accepted baselines.

* Add test for catch variable explicitly typed as 'any'.

* Accepted baselines.

* Move option under 'strict'.

* Accepted baselines.

* 'useUnknownInCatchVariables' is strict in command line help.
2021-06-03 13:12:56 -07:00
Orta Therox 6baa1bec64
Improve non-ambient class and function merge error (#44352)
* Improve non-ambient class and function merge error

* Update baselines

* Update tests

Co-authored-by: Austin Cummings <austin@austincummings.com>
2021-06-03 14:08:04 +01:00
Isabel Duan 9c50cb925e
Fixes subset of bugs (three tests fixed) listed in issue #41974 (#44367)
* some fixes for 41974

* linted

* fixed todo messages for readability
2021-06-02 09:32:19 -07:00
Anders Hejlsberg 391f9ffb85
Strict optional properties (#43947)
* Introduce --strictOptionalProperties compiler switch

* Accept new baselines

* Removing missingType when printing back optional properties

* Accept new baselines

* Fix linting issue

* Use getNonMissingTypeOfSymbol in getTypeOfSymbolAtLocation

* Properly elaborate errors involving optional properties

* Accept new baselines

* Properly check optional properties in tuple types

* Accept new baselines

* Add missing tuple type check

* More permissive check of strict optional properties and index signatures

* Add tests

* Fix lint issues

* Accept new baselines
2021-06-01 14:52:16 -07:00
Wesley Wigham 09a21ce7c6
Consider inferences between mapped type templates lower priority (#44126) 2021-05-28 21:07:39 -07:00
Anders Hejlsberg 9aa50d6475
Fix unintended 'as const' name lookup error (#44311)
* Fix logic for methods in isTypeParameterPossiblyReferenced

* Add regression tests
2021-05-27 17:23:28 -07:00
Nathan Shively-Sanders 459bd19941
Add unqualified JSDoc member references (#44202)
* Add unqualified JSDoc member references

This allows unqualified references like:

```ts
class Zero {
 /** @param buddy Must be {@link D_HORSE} or {@link D_DOG}. */
 deploy(buddy: number) { }
 static D_HORSE = 1
 static D_DOG = 2
}
```

I surveyed @see and @link again to estimate how common this is. I found
a little over 200 uses, which is around 2%. Sorted by frequency, this
*is* the next feature on the list, along with the `module:` prefix.
So I think this is about the right point to stop adding code.

In this case, however, I liked most of the uses -- there were a lot
of deprecated functions that referenced a function just below, where it
would be wordy to qualify the name, but the reader would benefit from a
link.

Note that unqualified references do *not* work inside type or object
literals. The code I ended up with is quite complicated and I didn't
observe any uses in the wild.

Fixes #43595

* Remove type/object literal container check

Since they don't work anyway
2021-05-26 09:54:05 -07:00
Oleksandr T 4559855c64
feat(44190): check misspelled base members in override checks (#44213) 2021-05-25 21:24:28 -07:00
Anders Hejlsberg 3938958d36
Properly remove generic types that are constrained to 'null | undefined' in getNonNullableType (#44219)
* Improve getNonNullableType function

* Add tests

* More closely match previous behavior

* Add non-strict mode test
2021-05-25 11:40:28 -07:00
Wesley Wigham 2203228b62
Ensure static index signatures have an errorNode available (#44129)
* Ensure static index signatures have an errorNode available

* Lookup static index signature declarations in the right symbol table, stop checking prototype props
2021-05-24 14:30:59 -07:00
Nathan Shively-Sanders c4c6a83922
Add @linkcode and @linkplain tags (#44208)
* Add @linkcode and @linkplain tags

They are just like @link tags but request fixed-width and normal
presentation, respectively.

Fixes #43935

* revert JSDocComment -> JSDoc SyntaxKind rename

* update API baselines

* fix lint
2021-05-24 13:01:58 -07:00