Commit Graph

1722 Commits

Author SHA1 Message Date
Ron Buckton
9d5cd280ef Merge branch 'master' into migrateMapsAndSets
# Conflicts:
#	src/compiler/checker.ts
#	src/compiler/commandLineParser.ts
#	src/compiler/core.ts
#	src/compiler/moduleNameResolver.ts
#	src/compiler/transformers/declarations.ts
#	src/compiler/tsbuildPublic.ts
#	src/compiler/types.ts
#	src/compiler/utilities.ts
#	src/harness/client.ts
#	src/server/editorServices.ts
#	src/server/typingsCache.ts
#	src/server/utilities.ts
#	src/services/codefixes/convertToAsyncFunction.ts
#	src/services/documentRegistry.ts
#	src/services/importTracker.ts
#	src/services/refactorProvider.ts
#	src/services/refactors/extractSymbol.ts
#	src/testRunner/unittests/programApi.ts
#	src/typingsInstallerCore/typingsInstaller.ts
#	tests/baselines/reference/api/tsserverlibrary.d.ts
#	tests/baselines/reference/api/typescript.d.ts
2020-07-07 13:53:46 -07:00
Nathan Shively-Sanders
9a65658b28 Parse *= separately in types (#39457)
* Parse *= separately in types

Previously, when the scanner produced `*=` as a single token, the type
parser ran special-case code to produce an "optional all type", which
only makes sense when the `=` really should be attached to the `*`. This
is often not the case.

The correct solution, which I missed when I first wrote this code, is to
have the scanner go back and produce a separate `=` token, which is what
this PR does.

* add test from #38551

* we ❤️ semicolons
2020-07-07 08:30:42 -07:00
Michael Hensler
2d09da6df5 allow consecutive newlines in jsdoc tag comments (#38036) 2020-07-02 14:19:37 -07:00
Ron Buckton
7b942b4fa8 Revert the type change to ts.Map (#39366) 2020-07-01 17:00:26 -07:00
Ron Buckton
611b77f2e6 Migrate more places to use Map/Set 2020-06-26 10:15:53 -07:00
Ron Buckton
eb2f4e2337 Switch to ES Map/Set internally (#33771)
* Add full implemention of Map and Set to shims

* Update default Map interface

* Remove WeakMap/WeakSet

* Add tests for set shim

* Update most usages of Map<K, true> to Set

* PR Feedback

* Fix lint issues

* Change key in fsWatchCallback

* Simpler shim, more tests

* Fix typo in collection shim
2020-06-26 10:12:47 -07:00
Ron Buckton
0b1d4a9c96 Leverage syntax cursor as part of reparse (#39216) 2020-06-23 17:32:58 -07:00
Nathan Shively-Sanders
acac035aed Add missing index.ts files to user projects (#39163)
This makes the language service treat .js files inside node_modules as
part of the parent project, so that you can view the same errors in the
editor as you see in the baselines.

Also update a comment in the parser that I missed in an earlier PR.
2020-06-22 08:46:14 -07:00
Ron Buckton
fe33e61823 Reparse top level 'await' in modules (#39084)
* Reparse top-level 'await' in modules

* Add more tests and additional diagnostics

* One more incremental parse test
2020-06-18 23:43:18 -07:00
Wenlu Wang
59ad375234 Add deprecated related feature (#38523)
* Add deprecated related feature

* Add more support

* fix navtree

* Add identifier check

* Add more deprecated

* fix crash

* fix more crash

* fix crash

* improve diagnostic

* avoid new tag

* avoid tags

* accept baseline

* Check deprecated in binder

* fix baseline

* fix jsdoc cache

* fix incorrect fix

* Avoid useless changes

* Accept baseline

* Add tests

* fix perf

* fix public api

* Adjust deprecated mark on qualifed name

* Revolve alias symbol

* Use modifier flags insted of symbol props

* Fix modifier flag resolve

* Make lint happy

* Fix crash

* fix crash

* Add cached utils function

* Accept baseline

* Add more tests

* try pinning octokit again

* Avoid tests

* Use utils some

* Deprecated perf test (#3)

* check valueDeclaration only

* check without modifierFlags

* donot check alias

* use cached tag

* remove call to jsdoc

* use deprecated tag

* revert changes

* Revert mission changes

* use node flags

* cache result

* cache

* avoid modifier flags

* Opts

* fix jsdoc include modifier

* fix tests

* fix again

* use symbol flag

* set @octokit/rest back to latest

* fix trailing spacel int

Co-authored-by: Nathan Shively-Sanders <293473+sandersn@users.noreply.github.com>
2020-06-18 17:41:26 -07:00
Noj Vek
f697d26ca1 reset soft with master for single commit (#38720) 2020-06-18 00:22:32 -07:00
Nathan Shively-Sanders
c3c6be6618 In JSDoc, parse postfix-? below conditional types/tuple types (#39123)
Outside of JSDoc comments, postfix-? is parsed at lower precedence than
the `?` of conditional types, and a postfix-? inside a tuple type
results in the type being marked optional.

This PR changes JSDoc parsing to behave the same way, which means that

1. Conditional types are allowed in JSDoc. Fixes #37166.
2. Tuple types' postfix-? syntax is interpreted correctly in JSDoc.
Fixes #38747.

The breaking change is that a postfix-? type followed by another postfix type,
like `[]` or `!`, is parsed as a conditional type. [Postfix-? is not
common](https://github.com/microsoft/TypeScript/issues/37166#issuecomment-612274456),
so this is an acceptable breaking change.

A postfix-? type `T?` is still parsed everywhere else and treated as `T | null`.
2020-06-17 14:06:39 -07:00
Ron Buckton
eb3645f16b Refactor node factory API, use node factory in parser (#35282)
* Refactor node factory API, use node factory in parser

* Move UnparsedSource nodes to factory

* Make most Node properties read-only

* Make pos/end/parent and JSDoc 'comment' read-only

* Update function/constructor-type factories

* Remove treeStateObserver

* Simplify Debug.deprecate

* Remove unused factory methods, simplify lazy factory methods

* Fix base factory used for source file updates

* Update test baseline due to merge from master

* Rename factory methods to be more consistent (#39058)
2020-06-16 16:55:03 -07:00
Jack Works
8e290e5aae Improve error range for ts2657 (jsx expr must have parent element), add code fix for it (#37917)
* fix: range of ts2657 (jsx expr must have parent) and remove 2695 (LHS expr of comma has no side effects)

* feat: add code fix for 2657

* fix: resolve review

* chore: hoist a var

* chore: add test for skipTrivia

* fix: rebase error

* Update src/compiler/diagnosticMessages.json

Co-authored-by: Andrew Branch <andrewbranch@users.noreply.github.com>

* Update src/services/codefixes/wrapJsxInFragment.ts

Co-authored-by: Andrew Branch <andrewbranch@users.noreply.github.com>

Co-authored-by: Andrew Branch <andrew@wheream.io>
Co-authored-by: Andrew Branch <andrewbranch@users.noreply.github.com>
2020-06-01 12:22:44 -07:00
Wesley Wigham
5f597e69b2 Support naming tuple members (#38234)
* Initial draft of named tuple members

* Show tuple labels and documentation in completions

* Swap allowed syntax to parameter-like

* Add quickfix for labeled tuple syntax mistakes

* Add refactoring to convert list of signatures to single overload

* Fix small bug in visitor verification

* Signature help for rest parameters which are unions of tuples are displayed as seperate entries now

* Expand sanity check test cases in conformance suite

* Add tests and code for preserving tuple names through spreads where possible

* More refactoring tests, some comment preservation and some fixed formatting of multiline tuples

* Handle missing parameter named in isValidDeclarationForTupleLabel

* Minor text fixes
2020-05-19 15:54:02 -07:00
Wenqi
1b7b3eb0f7 report error for duplicate @type declaration (#38340) 2020-05-11 12:47:49 -07:00
Sheetal Nandi
7f5994958b Handle comment directives in incremental parsing (#37632)
* Add test case that shows failure to handle commentDirectives in incremental parsing
Testcase for #37536

* Handle comment directives in incremental parsing
Fixes #37536
2020-03-27 12:00:34 -07:00
Ron Buckton
4fc4c4e3d6 Revert 'awaited' type (#37610) 2020-03-25 18:39:45 -07:00
Ron Buckton
b58a29b808 Fix emit for optional chain with non-null assertion (#36539)
* Fix emit for optional chain with non-null assertion

* Treat '!' differently inside chain vs end of chain

* remove dead code and fix comment
2020-03-25 15:28:13 -07:00
Rustin
8615eecfc1 Enhancement new expression with type arguments without parenthesized argument list error message (#37576)
* Enhancement new expression with type arguments without parenthesized argument list error message

Signed-off-by: Rustin-Liu <rustin.liu@gmail.com>

* add baselines

Signed-off-by: Rustin-Liu <rustin.liu@gmail.com>

* use parseErrorAt

Signed-off-by: Rustin-Liu <rustin.liu@gmail.com>

* refine code

Signed-off-by: Rustin-Liu <rustin.liu@gmail.com>

* Space before paren

Co-authored-by: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
2020-03-25 12:37:46 -07:00
Ron Buckton
e3ec7b18b8 Add the 'awaited' type operator (#35998)
* Add the 'awaited' type operator

* Add script to manually add reviewers to a PR when GH 'Suggested Reviewers' breaks

* Fix lint error in review script

* Only defer generic awaited type for possible thenable

* Add variance-like behavior for awaited

* Switch awaited type params to 'unreliable' variance

* fix typo in inferTypes

* LKG without syntax in lib

* LKG with new syntax in lib

* Add 'strictAwaitedTypes' flag

* Treat strictAwaitedTypes as strict-mode flag

* Rename TAll, remove duplicate definition of 'race'

* Apply suggestions from code review

Co-Authored-By: ExE Boss <3889017+ExE-Boss@users.noreply.github.com>

* Fix inference priority

* Update comment to isGenericAwaitableType

* Add overloads for then/catch to Promise

* Add inference heuristic for T | PromiseLike<T> (for any PromiseLike)

* Remove strictAwaitedTypes flag

Co-authored-by: ExE Boss <3889017+ExE-Boss@users.noreply.github.com>
2020-03-20 16:09:01 -07:00
Allan Guwatudde
a83ce339c9 Fix poor error span for unclosed JSX tags in the presence of whitespace/comments (#37419)
* Improve jsx tag error span

* Move solution to parseJsxChild func

* Add tests and update baselines

* Update comment in src/compiler/parser.ts

Co-Authored-By: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>

* Use skipTrivia to check for whitespaces and other trivia

* Import React into  errorSpanForUnclosedJsxTag.tsx

* .

* .

Co-authored-by: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
2020-03-19 11:40:43 -07:00
Sheon Han
b014e2b568 Show token hints for missing closing braces (#36317)
* Add error for missing brace in object literal

* Add new baseline test

* Update all affected tests
2020-03-12 15:52:02 -07:00
Klaus Meinhardt
7bd6209fbc Don't parse duplicate JSDoc for ExpressionStatement starting with ParenthesizedExpression (#36289)
* don't parse JSDoc on ExpressionStatement if it starts with ParenthesizedExpression

* update test
2020-03-12 14:42:49 -07:00
Orta
ffde92349d Added @ts-expect-error to @ts-ignore directives (#36014)
* Added @ts-expect-error to @ts-ignore directives

Similar to `// @ts-ignore`, but will itself cause a new error diagnostic if it does not cause an existing diagnostic to be ignored.

Technical summary:
1. The scanner will now keep track of `CommentDirective`s it comes across: both `@ts-expect-error` and `@ts-ignore`
2. During type checking, the program will turn those directives into a map keying them by line number
3. For each diagnostic, if it's preceded by a directive, that directive is marked as "used"
4. All `@ts-expect-error` directives not marked as used generate a new diagnostic error

* Renamed to getDiagnosticsWithPrecedingDirectives per suggestion

* Added JSDoc comment I thought I did already

Co-authored-by: Orta <orta.therox+github@gmail.com>
2020-03-05 10:37:36 -05:00
Titian Cernicova-Dragomir
f883bf3acb Adding support for @implements. (#36292)
* Adding support for @implements.

* Fixed code review issues for @implements, added some more tests.

* Fixed declaration emit for @interface

* Improved getImplementsTypes to not cache the results since it is only used once.

* Removed unnecessary checks from getImplementsTypes
2020-02-27 09:27:37 -08:00
Wesley Wigham
e536c89872 Add js-equivalent test for the binary expression stress and introduce trampoline into getJSSyntacticDiagnosticsForFile (#36724)
* Add js-equivalent test for the binary expression stress and introduce trampiline into getJSSyntacticDiagnosticsForFile

* Update src/compiler/parser.ts

Comment text update

Co-Authored-By: Nathan Shively-Sanders <293473+sandersn@users.noreply.github.com>

* Fix lint

Co-authored-by: Nathan Shively-Sanders <293473+sandersn@users.noreply.github.com>
2020-02-25 13:29:34 -08:00
Ron Buckton
177713ef45 Switch Debug.assertX functions to use asserts conditions (#36995)
* Switch Debug.assertX functions to use asserts conditions

* Replace assert functions with ts.noop when assertion level too low
2020-02-24 18:20:58 -08:00
Andrew Branch
b1e706d911 Set correct pos for NamespaceExport (#36794)
* Set correct pos for NamespaceExport

* Update tests
2020-02-14 12:45:26 -08:00
Nathan Shively-Sanders
1e48cbe2c9 Fix jsdoc comment parsing initial state (#36661)
* Fix jsdoc comment parsing initial state

Jsdoc comment parsing can be invoked in two modes:

1. top-level parsing, for comments not inside a tag.
2. tag parsing, for comment that occur after the semantic parts of a
tag.

Top-level parsing skips an initial * because it assumes that it is starting
at the very beginning of a JSDoc comment. Tag parsing does not.

The two modes are distinguished by an optional second parameter named
`margin`. When `margin` is provided, it provides an initial indent used
for comment alignment.

Previously, the check for `margin` was a truthy check `if (margin)`.
This check incorrectly treats `margin=""` the same as
`margin=undefined`.

This PR changes the check to `if (margin !== undefined)`, which
correctly treats `margin=""` the same as `margin="    "`.

* Fixes for broken tests

1. Use SawAsterisk start state.
2. @template needs to skip asterisk in addition to whitespace while
parsing type parameter names.

* undo code move
2020-02-07 08:35:40 -08:00
Wenlu Wang
70399e146e add support for Lift Template Literal Restriction (#23801)
* add support for Lift Template Literal Restriction

* rename file and improve comment and tests

* fix NoSubstitutionTemplateLiteral support

* extract tagged template and add more test

* avoid useless parameter

* fix incorrect return node if cannot transform

* accept baseline

* correctly baseline

* accept baseline

* fix merge break

* fix merge break

* inline rescan template head or no subsititution template

* update scan error

* add comment and fix lint

* refactor and fix lint

* avoid blank

* fix merge conflict

* fix again

* fix again

* use multiple target

* fix space lint

Co-authored-by: Nathan Shively-Sanders <293473+sandersn@users.noreply.github.com>
2020-02-05 08:59:51 -08:00
Nathan Shively-Sanders
1bbcb5553a @typedef's nested Object syntax disallows type arguments (#36172)
Previously the jsdoc index signature syntax was incorrectly treated the
same as Object:

```js
/** @typedef {Object} AllowsNesting
 * @property ... */
/** @typedef {Object.<string,string>} IncorrectlyAllowsNesting */
```

Fixes #34911
2020-01-29 12:53:00 -08:00
Wesley Wigham
08e6bc20bb Trampolines for large binary expressions (#36248)
* WIP

* Test no longer crashes, but emit trampoline is incomplete and skips pipeline phases

* Fix lints, use non-generator trampoline in emit (still skips pipeline)

* Final version with emitBinaryExprssion work stack that is only used if possible

* Fix lints

* retarget to es2015 for testing

* Use bespoke state machine trampolines in binder and checker

* Remove now extraneous code in parser

* Adjust fixupParentReferences to use a depth first preorder traversal rather than breadth first

* Reintroduce incremental fast bail in fixupParentReferences

* Revert target to es5

* PR feedback

* Small edit for devops rebuild with updated definition

* Fix comment nits, add internally extraneous check back into transformer
2020-01-24 16:29:55 -08:00
Andrew Branch
eac2180e40 Be more tolerant with private identifier parsing, issue more targeted errors, and support private identifiers in forgotten 'this' codefix (#36188)
* Support private identifiers in forgotten this codefix

* Parse invalid private identifiers as identifiers and issue targeted errors

* Update codefix

* Remove accidentally deleted newline
2020-01-22 13:41:15 -08:00
Joey Watts
f84b2d20a9 Parse error on private identifier optional chain (#35987)
Previously, this error was reported in the checker, so JS files with
checkJs: false were not erroring on this invalid syntax.
2020-01-07 16:00:15 -08:00
Andrew Branch
3b396e6124 Type-only imports and exports (#35200)
* Add type-only support for export declarations

* Use a synthetic type alias instead of binding type-only exports as a type alias

* Works for re-exports!

* isolatedModules works fine

* Diagnostic for type-only exporting a value

* Start isolated modules codefix

* Update for LKG control flow changes

* Type-only import clause parsing

* Type-only default import checking

* Type-only named imports

* Fix isolated modules error

* Filter namespaces down to type-only

* Fix class references

* Test nested namespaces

* Test circular type-only imports/exports

* Fix getTypeAtLocation for type-only import/export specifiers

* Fix type-only generic imports

* Update public APIs

* Remove unused WIP comment

* Type-only namespace imports

* Fix factory update calls

* Add grammar errors for JS usage and mixing default and named bindings

* Update updateExportDeclaration API baseline

* Fix grammar checking import clauses

* Enums, sort of

* Dedicated error for type-only enum

* Skip past type-only alias symbols in quick info

* Update error code in baseline

* WIP: convertToTypeOnlyExport

* isolatedModules codefix (single export declaration)

* isolatedModules code fix (all)

* Stop eliding non-type-only imports by default, add compiler flag

* Update to match updated diagnostic messages

* Update more baselines

* Update more tests

* Auto-import as type-only

* Add codefix for splitting type-only import with default and named bindings

* Add more services tests

* Add targeted error message for "export type T;" when T exists

* Add targeted error for "import type T = require(...)"

* Flip emit flag

* Add test for preserveUnusedImports option

* Fix flag flip on import =

* Make compiler option string-valued

* Fix merge conflicts

* Add --importsNotUsedAsValue=error

* Phrasing of messages.

Co-authored-by: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
2020-01-03 14:39:32 -08:00
Max Heiber
36c87aca8a Private named instance fields (#30829)
* Fix display of private names in language server

Signed-off-by: Joseph Watts <jwatts43@bloomberg.net>
Signed-off-by: Max Heiber <max.heiber@gmail.com>

* Parse private names

Signed-off-by: Max Heiber <max.heiber@gmail.com>

* update parser error recovery tests to use ¬ not #

The intent of the tests seemed to be to
regiment the behavior of the parser
when a weird symbol is encountered.

The `#` is now taken by private identifiers,
so `¬` seems like a good new choice for
keeping the diff small, since it also fits in
16 bits (wide emojis would be treated
as multiple characters, since the scanner
uses ++).

Signed-off-by: Max Heiber <max.heiber@gmail.com>

* Private Name Support in the Checker (#5)

- [x] treat private names as unique:
    - case 1: cannot say that a variable is of a class type unless the variable points to an instance of the class
        - see [test](https://github.com/mheiber/TypeScript/tree/checker/tests/cases/conformance/classes/members/privateNames/privateNamesUnique.ts)
    - case 2: private names in class hierarchies do not conflict
        - see [test](https://github.com/mheiber/TypeScript/tree/checker/tests/cases/conformance/classes/members/privateNames/privateNamesNoConflictWhenInheriting.ts)
- [x] `#constructor` is reserved
    - see [test](https://github.com/mheiber/TypeScript/tree/checker/tests/cases/conformance/classes/members/privateNames/privateNameConstructorReserved.ts)
    - check in `bindWorker`, where every node is visited
- [x] Accessibility modifiers can't be used with private names
    - see [test](https://github.com/mheiber/TypeScript/tree/checker/tests/cases/conformance/classes/members/privateNames/privateNamesNoAccessibilityModifiers.ts)
    - implemented in `checkAccessibilityModifiers`, using `ModifierFlags.AccessibilityModifier`
- [x] `delete #foo` not allowed
- [x] Private name accesses not allowed outside of the defining class
    - see test: https://github.com/mheiber/TypeScript/tree/checker/tests/cases/conformance/classes/members/privateNames/privateNameNotAccessibleOutsideDefiningClass.ts
    - see [test](https://github.com/mheiber/TypeScript/tree/checker/tests/cases/conformance/classes/members/privateNames/privateNamesNoDelete.ts)
    - implemented in `checkDeleteExpression`
- [x] Do [the right thing](https://gist.github.com/mheiber/b6fc7adb426c2e1cdaceb5d7786fc630) for nested classes

mv private name tests together

more checker tests for private names

update naming and cleanup for check private names

for private name support in the checker:
- make names more consistent
- remove unnecessary checks
- add utility function to public API
- other small cleanup

Move getPropertyNameForUniqueESSymbol to utility

for consistency with other calculation of
special property names (starting with __),
move the calculation of property names for
unique es symbols to `utilities.ts`.

private name tests strict+es6

Update private name tests to use 'strict'
type checking and to target es6 instead of
default. Makes the js output easier to read
and tests more surface area with other
checker features.

error message for private names in obj literals

Disallow decorating private-named properties
because the spec is still in flux.

Signed-off-by: Max Heiber <max.heiber@gmail.com>

* Add private instance field transformation, pr feedback

Implements private instance fields on top of the class properties refactor.

This commit also includes incorporation of PR feedback on the
checker, parser, and transformer in order to make the rebase
manageable.

Co-Authored-By: Max Heiber <max.heiber@gmail.com>
Co-Authored-By: Ron Buckton <ron.buckton@microsoft.com>

Signed-off-by: Joey Watts <jwatts43@bloomberg.net>
Signed-off-by: Max Heiber <max.heiber@gmail.com>

Incorporate PR feedback

Fix checker crash with new block scoped bindings

Add classExpressionInLoop test

Update baselines for private name errors

Apply suggestions from code review

Fix privateNameFieldCallExpression test

Remove unnecessary comment

Fix PropertyAccessEntityNameExpression type

Remove PrivateName from PropertyNameLiteral

Add createPrivateName

Remove PrivateName type from textSourceNode

Add Debug asserts for invalid syntax kinds

Don't output private name syntax when undeclared

Make PrivateName extend Node

Update baselines for public API

Fix completions in language server

Fix fourslash test crash

intern private name descriptions

undo expensive node.name.parent assignment

Back the way things were on `master`: only
assign node.name.parent when we need to

Add tests for private names and JSDoc

Patch hoverOverPrivateName fourslash test

Fix goToDefinition for private-named fields

remove Debug.fail for private name outside class

Remove Debug.fail in binder.ts::`getDeclarationName`.
It turns out this code path *does* get hit (intentionally).

For best error messages, return `undefined` and rely
on the parser generating a good error message

"Private names are not allowed outside class bodies"

Add rbuckton test cases for private names

These test cases specifically exercise where
we needed to use name-mangling. They are
cases where private names have the same
description.

- private names no conflict when inheriting
- private names distinct even when
the two classes have the same name

check dup instance+static private identifiers

class A {
    #foo;
    static #foo;
}

not allowed because static and private names
share the same lexical scope
https://tc39.es/proposal-class-fields/#prod-ClassBody

refactor getPropertyForPrivateName, rel spans

refactor getPropertyForPrivateName so
it is easier to read (use findAncestor instead
of loop).

Fix bugs in getPropertyForPrivateName:
- make it work with deeply-nested classes with
and without shadowing
- make it catch shadowing when the conflict is
between static and instance
private name descriptions (these can actually
clash)

And add related spans to diagnostics
for getPropertyForPrivateName

catch conflicts between static and instance
private identifiers:
- cannot have an instance and static private identifier
  with the same spelling, as there is only one namespace
  for private names

rename 'PrivateName' to 'PrivateIdentifier'

to match the change of wording in the spec
prposal:

https://tc39.es/proposal-class-fields/#sec-syntax

The rename in the spec was to avoid confusion
between the AST Node PrivateIdentifier
and the internal spec type PrivateName.

So one uses the [[Description]] of a
PrivateIdentifier to look up the PrivateName
for a given scope.

This corresponds closely to our implementation
in the binder and checker:
- we mangle PrivateIdentifier.escapedText to
get a `key` which we use to get the symbol
for a property

f

getLiteralTypeFromProperty-check privateIdentifier

rename and simplify privateNameAndAny test case

make it clearer that all this test is showing is
that we allow accessing arbitrary private identifiers
on `any`.

Note: we could have something more sound here by
checking that there is a private-named field declaration
in a class scope above the property access.

Discussion:
https://github.com/microsoft/TypeScript/pull/30829/files#r302760015

Fix typo in checker

s/identifer/identifier

remove accidental change

patch fourslash test broken by isPrivateIdentifier

just needed to add a check to see if the symbol
.name is defined

extract reportUnmatchedProperty

per @nsandersn feedback

propertiesRelatedTo was getting to long

pull out the unmatchedProperty reporting into
a seprate function

fix typo in private names test

Fix type soundness with private names

Remove PrivateIdentifier from emit with Expr hint

Fixup helpers and set function name for privates

remove accidentally-committed baselines

These baselines somehow ended up in this pr,
though they have nothing to do with the changes

Revert "getLiteralTypeFromProperty-check privateIdentifier"

This reverts commit bd1155c300bc3517a0543580f4790268f86e473f.

reason: the check for isIdentifier in
getLiteralTypeFromProperty is superfluous because
we do this check in getLiteralTypeFromPropertyName

Update comment in private name uniqueness test 3

I think the comments were not accurate and that we
export the error on `this.#x = child.#x` because:
- private names are lexically scoped: the code in question is not in a
lexical scope under the definition of Child's #x.
- private names are private to their containing class: never inherited

This expected behavior matches that of Chrome Canary and
my understanding of the spec

test private names use before def, circular ref

test private names use before def, circular ref

update diagnosticMessages s/delete/'delete'

per @DanielRosenwasser and @sandersn guidance,
use this style in diagnostic messages:

"operand of a 'delete' operator" (single quotes)

rather than old style:

"operand of a delete operator" (single quotes)

This is for consistency, as we use the new
style in the privateIdentifiers error messages
and it is consistent with our messages about
other operators

incorporate private names early exit feedback

and code style change to use a ternary
instead of if so we can 'const'

require private-named fields to be declared in JS

All fields must be declared in TS files.

In JS files, we typically do not have this requirement.

So special-case private fields, which must always
be declared (even in JS files, per spec)

update debug failure for es2015 private identifier

Co-Authored-By: Ron Buckton <ron.buckton@microsoft.com>

fix checker handling of private name in subclasse

update checker and tests to account for the
following ts features:

- private names do not participate in
the prototype chain, but *are* assigned
in the parent class' constructor. So
parent can access its *own* private fields
on instances of the subclass

Add more tests for private-named fields in JS

add test to hit symbolToExpression w private names

symbolToExpression knows about private names
add a test to exercise this code path

ban private-named static methods (not supported yet)

ban private-named methods (not supported yet)

ban private-named accessors (not supported yet)

fix privateIdentifier fourslash test

change assertion throw to return

Co-Authored-By: Ron Buckton <ron.buckton@microsoft.com>

Update comment in checker.ts re reserved members

Remove case for privateIdentifier in EntityNameExpr

Remove case for privateIdentifier in
EntityNameExpr. That code path is never hit,
and privateIdnetifiers cannot be entity names.

remove unnecessary parentheses

Ban private identifier in enum

As the new test, 'privateNameEnumNoEmit',
shows, the checker now correctly makes
a diagnostic for private identifiers in enums.

However, when noEmit is false we
hit this assertion in the transformer.

This assertion will have to be removed
so that we have a diagnostic here instead
of an assertion error.

When the assertion is removed,
the 'privateNameEnum' baseline
will have to be updated

Fix destructuring assignment, use createCallBinding, remove unneeded helper

Add class private field helpers to external helpers

Remove private identifier enum assertion, use missing identifiers

Fix hash map inefficiency by only using get

Update baselines with empty identifier change

Add privateNameEnum test baselines

Fix private identifier destructuring (array assignment defaults, unique names)

Use createPrivateIdentifierAssignment in destructuring transform

Fix lint error

Separate destructuring target visitor from regular visitor

Fix destructuring assignment with this bindings

Fix destructuring assignment with this bindings

Fix syntax error with destructuring assignment output

Disallow private identifiers in property signatures

remove duplicate test baselines

Add tests for undeclarated private identifiers

remove unnecessary cast

Nicer error message for mis-placed hashbang

Workaround v8 bug with destructured assignments

Optimize private identifier stack lookup

Avoid the cost of performing an array lookup to look at the top of the
private identifier environment stack.

Change function name to be more specific

Changes "getOperatorForCompoundAssignment" to
"getNonAssignmentOperatorForCompoundAssignment" now that this
function is accessible to the entire compiler.

Improve test case for private name assignment

Adds a compound assignment test case for a class with private names
being declared on the left-hand-side of the assignment expression.

Remove extra non-private-field test

Remove isPrivateIdentifierAssignmentExpression helper

Don't transform private names in ESNext target

Preserve private fields initialized to functions

Move function expressions to outer scope for efficiency

Add WeakMap collision check

Modify potential WeakMap collision condition

Fix this property assignment binding with private names

Add correct error message for WeakMap collision

Add error for statements before super with private identifiers

Refactor getPropertyForPrivateIdentifier

Add test for private identifier fields initialized to class exprs

Fix shebang errors

Fix private errors on index signatures

Add codefix for missing private property

Update error messages for unsupported private features

Fix inheritance-related errors

Fixes inheritance-related errors with private identifiers by resolving
properties from base classes. Private identifiers do not show up as
properties on a union type, so those do not type-check.

Add test for interface extending class with private access

Remove debugging log

Remove name assignment from private named functions

Rename to getPrivateIdentifierPropertyOfType

Fix index signature test comment

Fix test target syntax error

Change error messages

patch private identifiers outside class bodies

Add test for private identifier with ooo super

Add test for a class with a private identifier
with a non-preambly (for example, not a comment)
statement before 'super':

should error, saying 'super' must come first

Fix nits

incorporate PR feedback

Incorporate checker feedback

- reorganize if statements in checkFunctionOrConstructorSymbol
- remove overload for getPrivateIdentifierPropertyOfType

reorganize if statements in checkFunctionOrConstructorSymbol

test for private names with JSX

use getPropertyOftype in getPropertyForPrivateIdentifier

getPrivateIdentifierPropertyOfType error on synthetic

make getPrivateIdentifierPropertyOfType  error
if given a node that is not from the parse tree

Simplify checkPrivateIdentifierPropertyAccess

use getPropertiesOfType instead of
rehashing that logic

test for private identifiers w decl merging

fix test target for privateNameDeclarationMerging

update baselines

Fix private identifier ++/-- numeric coercion

Remove 'downleveled' from super error

Fix bad comments in helper call emit

Error on private identifiers in JSX tag names

Add more private identifier tests

Add es2015 target for private name destructured binding test

Add privateNameConstructorSignature test

Add test for navigation bar w private identifier

Remove spurious line from test

// in js file
class A {
    exports.#foo = 3; // should error
}

The above line failed to produce an error
when run using the test harness.

When using tsc or the language server,
we got the expected error message.

Removing the troublesome line, as it
seems to say more about the test runner
than about the code it is testing.

Fix inefficient constructor generation

dts: don't emit type for private-identified field

Do not emit types for private-identified fields
when generating declaration files.

// example.ts
export class A {
    #foo: number;
}

// example.d.ts

export declare class A {
    #foo;
}

**This is not ideal!**

The following would be better:

// example.d.ts

export declare unique class A {
    #foo;
}

See discussion:

https://github.com/microsoft/TypeScript/pull/33038#issuecomment-530321165

notice when private-identified field unused

Notice when private-identified fields are unused,
and implement the same behavior as for unused
private-modified fields.

This is used in the language server to make things
grayed out.

This case generates an error when --noUnusedLocals
flag is passed to tsc:
    - "<name> is declared but never used"

accept baselines

Revert "dts: don't emit type for private-identified field"

This reverts commit e50305df5fb88121486291abad14478f5339a455.

Instead of just excluding the type from private identifier
emit, only emit a single private identifier
per class.

This accomplishes nominality while
hiding implementation detail that
is irrelevant to .d.ts consumers

only emit a single private identifier in dts

In dts emit, emit at most one private identifier,
and rename it to `#private`.

refactor getPrivateIdentifierPropertyOfType

- safer check for wehther is parse tree node
- return undefined when not found (instead of
a Debug.fail)

Incorporate PR feedback

Don't rely on parent pointers in transform

Passes context about whether the postfix unary expression value is
discarded down the tree into the visitPostfixUnaryExpression function.

Remove orphaned test baseline files

remove unreachable if

Check `any`-typed private identified fields

Update private identifier incompatible modifier checks

- disallow 'abstract' with private identifiers
- s/private-named-property/private identifier

Add additional call expression test cases

Fix disallow 'abstract' with private identifier

Static private identifiers not inherited

Including this in the PR for private
instance fields even though static
private identifiers are banned.

Reason: this change
improves quality of error messages,
see test case.

Thanks Ron!

Simplifiy private identifier 'any' type handling

Error on private identifier declarations for ES5/ES3

Bind `this` for private identifier property tagged template literals

Fix target for jsdocPrivateName1 test

Update getPrivateIdentifierPropertyOfType API

Make it easier to use by accepting a string
and location, rather than a PrivateIdentifier.

Thanks Ron!

remove orphaned tests

rename test

remove duplicate tests

Remove unrelated error from test

update diagnostic message 'private identifier'

The nodes for hash private fields are now
called 'private identifier'. Update one last
diagnostic message to use the new terminology.

refine solution for static private identifier fields

- use `continue` instead of `filter` for perf
- better naming
- make it clear the current solution will
need to be altered when we lift the ban on
static private identifier fields, including
a test case that should change in the future

Fix display of private identifiers in lang server

Fix bug where private identifiers in completion
tooltips in the playground were showing up
as the symbol table entries (with underscores and such).

https://github.com/microsoft/TypeScript/pull/30829#issuecomment-534157560
Signed-off-by: Max Heiber <max.heiber@gmail.com>

* fix privateIdentifier w !useDefineForClassFields

Signed-off-by: Max Heiber <max.heiber@gmail.com>

* Disallow PrivateIdentifier in Optional Chains

Signed-off-by: Max Heiber <max.heiber@gmail.com>

* restrict privateIdentifier completions correctly

Don't autocomplete privateIdentifiers in
places where they are not allowed.

Signed-off-by: Max Heiber <max.heiber@gmail.com>

* make PrivateIdentifier not a PropertyNameLiteral

Signed-off-by: Max Heiber <max.heiber@gmail.com>

* Added test.

* Accepted baselines.

* Update symbol serializer to understand private fields in JS `.d.ts` emit.

* Accepted baselines.

* fix for private field no initializer esnext

Signed-off-by: Max Heiber <max.heiber@gmail.com>

* fix private fields .d.ts emit for JS w expando

fix bug where the following in a JS file
would lead to a `#private` in the .d.ts:

```js
class C {
    constructor () {
        this.a = 3
    }
}
```

Co-authored-by: Joey Watts <joey.watts.96@gmail.com>
Co-authored-by: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
2019-12-27 13:07:35 -08:00
Wenlu Wang
4c7844be74 Implement export as namespace from (#34903)
* init export start as decl

* fix some broken

* fix more case

* fix more and more case

* make it work

* make lint happy and accept baseline

* add more tests

* fix system module

* add more case

* delete useless assert

* accept baseline

* make lint happy

* fix missing utils

* update api

* make lint happy

* add missing semi

* fix minor issue

* fix locally bound

* avoid useless check

* update public api

* add more case

* fix some case

* Use multi-module selection in test runner to cut down on duplication.

* Accepted baselines.

* remove superfluous tests.

* Remove baseline.

* Downlevel `export * as ns` in es2015.

* Accepted baselines.

* Update names of things.

Co-authored-by: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
2019-12-20 16:00:20 -08:00
Nathan Shively-Sanders
3d2b92ce69 Readonly support for jsdoc (#35790)
* Add @readonly

The rule for @readonly on this-assignments in the constructor is wrong.
See failing tests.

* In-progress

Add ctor function test
Add some notes and rename variable

* Done except for cleanup and fix 1 bug

* Fix last test and clean up
2019-12-20 13:47:20 -08:00
Nathan Shively-Sanders
3c5ecc2a60 Add jsdoc support for @public/@private/@protected (#35731)
* Add @private/@protected/@public test

* Fix @declaration

* draft abstraction + one usage

* Fill in necessary parsing etc

* make general getEffectiveModifierFlags

move to utilities, make the right things call it

* reorder public/private/protected

* JS declaration emit works with @public/@private/@protected

* revert unneeded/incorrect changes

* Update baselines and skip @public/etc when parsing

1. Update the API baselines with the new functions.
2. Do not check for @public/etc during parsing, because parent pointers
aren't set, so non-local tags will be missed; this wrong answer will
then be cached.

* Parser: don't call hasModifier(s) anymore.

Then move jsdoc modifier tag checks into getModifierFlagsNoCache where
they should be. The jsdoc checks are skipped when the parent is
undefined. There are 3 cases when this can happen:

1. The code is in the parser (or a few places in the binder, notably
declareSymbol of module.exports assignments).
2. The node is a source file.
3. The node is synthetic, which I assume to be from the transforms.

It is fine to call getModifierFlags in cases (2) and (3). It is not fine
for (1), so I removed these calls and replaced them with simple
iteration over the modifiers. Worth noting: Ron's uniform node construction
PR removes these calls anyway; this PR just does it early.

* Fix constructor emit

1. Emit protected for protected, which I missed earlier.
2. Emit a constructor, not a property named "constructor".
3. Split declaration emit tests out so that errors are properly reported
there.
2019-12-18 12:58:12 -08:00
Toxyxer
f8cacf97e1 Issue/34870 (#35586)
* Add new error message when missing brace

* Add test for missing close brace

* Update other tests which were affected
2019-12-09 16:31:23 -08:00
Klaus Meinhardt
5321dcb09f disallow 'await' and 'yield' in property and enum member initializer (#34892)
* disallow 'await' and 'yield' in property and enum member initializer

* accept baseline changes

* Add a test for #34887

Ensures that this fixes #34887
2019-11-14 17:44:48 -08:00
Sergey Tychinin
ab879939df Improve error message when reserved word is used as identifier
Signed-off-by: Sergey Tychinin <stychinin@bloomberg.net>
2019-10-01 10:48:17 -04:00
Wenlu Wang
7c50bccec2 nullish coalescing commit (#32883)
* migrate nullish coalescing commit

* add more test case

* add branch type check test

* add more tests

* fix nullish precedence

* update public api

* add rescan question question token to fix regression

* update public api baseline

* Added tests that emit for nullish coalescing operator conforming with grammar restrictions when assertions are used.

* Fixed emit to hoist temporary variables (they previously went undeclared).
Added tests to ensure calls and property accesses are only called once.

* use not equal to null

* rename factory

* add grammar check

* fix more cases

* Fix handling of nullish coalescing oprator in expando objects.

* Fixed classifier to support ?? operator.

* update baseline

* accept baseline

* fix review

* update emitter and more testcase

* update control flow

* make linter happy

* update libs

* avoid unnecessary assert

* fix typooo

* Fixes for control-flow analysis
2019-09-30 15:33:50 -07:00
Ron Buckton
fcd9334f57 Add support for Optional Chaining (#33294)
* Add support for Optional Chaining

* Add grammar error for invalid tagged template, more tests

* Prototype

* PR feedback

* Add errors for invalid assignments and a trailing '?.'

* Add additional signature help test, fix lint warnings

* Fix to insert text for completions

* Add initial control-flow analysis for optional chains

* PR Feedback and more tests

* Update to control flow

* Remove mangled smart quotes in comments

* Fix lint, PR feedback

* Updates to control flow

* Switch to FlowCondition for CFA of optional chains

* Fix ?. insertion for completions on type variables

* Accept API baseline change

* Clean up types

* improve control-flow debug output

* Revert Debug.formatControlFlowGraph helper
2019-09-30 12:33:28 -07:00
Nathan Shively-Sanders
500a0df6f3 Add useDefineForClassFields flag for Set -> Define property declaration (#33509)
* Disallow property/accessor overrides

Unless the base property or accessor is abstract

* Disallow uninitialised property overrides

This causes quite a few test breaks. We'll probably want to revert many
of them by switching to the upcoming `declare x: number` syntax.

* Updates from design review + fix ancient bug

1. Don't error when overriding properties from interfaces.
2. Fix error when overriding methods with other things. This had no
tests so I assume that the code was always dead and never worked.

* Need to add a couple of errors and squash one

Will update after checking out other branch for a minute

* Everything works so far

Need to test properties initialised in constructor

* Check for constructor initialisation

* change error wording

* Improve error wording

* Add codefix to add missing 'declare'

* Always emit accessors in .d.ts files

* Allow 'declare' on any uninitialised property decl

* Undo code moves

* Let sleeping dogs lie

* Correctly set NodeFlags.Ambient

And simplify redundant parts of check.

* Remove more unneeded code

* Update baselines

* Update baselines

* Update baselines

* Ignore this-property assignments

* Fix base-in-interface check

* Do not error when base parent is interface

* Fix base interface check

* Add missed baselines

* Fix check

* Fix new errors in services

* Fix new errors in services

* Fix errors in testRunner

* Add flag and turn off errors when on

* Structure of new emit is correct, fake content

It is 'hi'.

* Basically right emit

* Fix one last unitialised property declaration

* Haha no I missed another one

* Fix whitespace back to CRLF

* Minor fix and code cleanup

* New test case

* Fix bug in isInitializedProperty

* Updates from design meeting.

1. Change flag name to useDefineForClassFields (and flip polarity).
2. Forbid ES3 + useDefineForClassFields (since there is no
defineProperty).
3. Forbid overriding an abstract property-with-initializer with an
accessor.

* Update baselines

* Object.defineProperty for methods too

Using code from Ron from his upcoming refactor of the factory functions.

* Update slow baselines

* Improve error message

* Update src/compiler/transformers/utilities.ts

Co-Authored-By: Andrew Branch <andrewbranch@users.noreply.github.com>

* Add test of computed properties

* Remove done TODO
2019-09-26 13:25:05 -07:00
Anders Hejlsberg
bcdf33d8de Fix forEachChild 2019-09-20 17:44:19 -07:00
Anders Hejlsberg
c3dcc37c79 Merge branch 'master' into assertionsInControlFlow
# Conflicts:
#	src/compiler/checker.ts
2019-09-20 17:23:27 -07:00
Arpad Borsos
a8d04b2db9 Fix Identifiers: NaN diagnostic when having JSON SourceFiles
This makes sure that the `identifierCount` and `nodeCount` properties
are always initialized for `SourceFile` objects.
2019-09-12 21:10:38 +02:00
Orta
f9cc374d21 Merge pull request #33336 from JoshuaKGoldberg/enum-syntax-error-specifics
Added more helpful syntax error for enum member commas
2019-09-11 23:05:16 +02:00