Commit Graph

702 Commits

Author SHA1 Message Date
Alexander T
dbd55b3928 fix(35944): show spell checking quick fix for non-existent private named property access (#36195) 2020-01-15 16:56:40 -08:00
Eli Barzilay
9fbcdb1edb Resurrect SuppressAnyReturnType, but make it used only at the toplevel 2020-01-07 17:12:43 -05:00
Eli Barzilay
724f426468 Remove SuppressAnyReturnType
Following a discussion with Ryan, it seems best to leave any `any`s in
the generated code.
2020-01-07 17:12:43 -05:00
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
Kagami Sascha Rosylight
deb5288e31 Add module: es2020 (#33893) 2019-12-20 16:29:49 -08:00
Andrew Branch
aef2e0a238 Fix implement interface codefix for synthetic member symbols (#35718) 2019-12-18 07:20:01 -08:00
Andrew Branch
64a886700f Fix spelling codefix for optional chain property access (#35583) 2019-12-09 11:31:47 -08:00
Andrew Branch
b39b4e05be Use namespace import for esnext when esModuleInterop is off (#35475) 2019-12-04 12:07:25 -08:00
Wesley Wigham
7bfffa745f Remove redundant checker functions and use patterns more friendly to modules (#35399)
* Remove redundant checker functions, use patterns more friendly to modules

* Also use a helper for localizedDiagnosticMessages

* Move types into same file as consts

* Accept slightly changed api baseline

* Whitespace!
2019-12-02 13:44:25 -08:00
Andrew Branch
571ca60b08 Add preceding semicolon on await insertion when parentheses are included (#34627)
* Add preceding semicolon on await insertion when parentheses are included

* Just start with precedingToken

* Fix semicolon formatter regression

* Delete test with debatable expected behavior

* Lint after control flow changes
2019-11-19 13:11:42 -08:00
Orta
af0d5d33b6 Improve positioning of the implement interface codefix (#34928) 2019-11-19 12:13:50 -05:00
Ron Buckton
556da72ffd [WIP] Improve optional chaining checker performance (#33794)
* Improve optional chaining checker performance

* Improve optional chaining checker performance

* Add flags to Signature

* Inline getOptionalExpression

* split checks for optional chains

* Cache optional call signatures
2019-10-18 17:27:47 -07:00
Andrew Branch
454a3a0b0f Fix auto-imports from auto type acquisition definitions (#33766)
* Fix auto-imports from ATA typings

* Compare canonical filenames in isImportablePath
2019-10-17 13:59:09 -07:00
Andrew Branch
e146f0d13d Allow inferFromUsage to do auto-imports (#33915)
* Add test

* Auto-import instead of using ImportTypeNodes

* Write more tests and fix namespace case

* Remove unused enum memmber

* Update API baselines

* Lint

* Style nits and util consolidation
2019-10-14 10:33:00 -07:00
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
Andrew Branch
304fcee09b Updated: Only auto-import from package.json (#32517)
* Move package.json related utils to utilities

* Add failing test

* Make first test pass

* Don’t filter when there’s no package.json, fix scoped package imports

* Use type acquisition as a heuristic for whether a JS project is using node core

* Make same fix in getCompletionDetails

* Fix re-exporting

* Change JS node core module heuristic to same-file utilization

* Remove unused method

* Remove other unused method

* Remove unused triple-slash ref

* Update comment

* Refactor findAlias to forEachAlias to reduce iterations

* Really fix re-exporting

* Use getModuleSpecifier instead of custom hack

* Fix offering auto imports to paths within node modules

* Rename things and make comments better

* Add another reexport test

* Inline `symbolHasBeenSeen`

* Simplify forEachAlias to findAlias

* Add note that symbols is mutated

* Symbol order doesn’t matter here

* Style nits

* Add test with nested package.jsons

* Fix and add tests for export * re-exports

* Don’t fail when alias isn’t found

* Make some easy optimizations

* Clean up memoization when done

* Remove unnecessary semicolon

* Make getSymbolsFromOtherSourceFileExports pure

* Cache auto imports

* Revert "Cache auto imports"

This reverts commit 8ea4829587.

* Handle merged symbols through cache

* Be safer with symbol declarations, add logging

* Improve cache invalidation for imports and exports

* Check symbol presence first

* Only run cache invalidation logic if there’s something to clear

* Consolidate cache invalidation logic

* Fix reuseProgramStructure test

* Add more logging

* Only clear cache if symbols are different

* Refactor ambient module handling

* Start caching package.json stuff

* Support package.json searching in fourslash

* Move import suggestions cache to Project

* Start making more module specifier work available without having the importing file

* Going to backtrack some from here

* Get rid of dumb cache, fix node core modules stuff

* Start determining changes to a file have invalidated its own auto imports

* Move package.json related utils to utilities

* Add failing test

* Make first test pass

* Don’t filter when there’s no package.json, fix scoped package imports

* Use type acquisition as a heuristic for whether a JS project is using node core

* Make same fix in getCompletionDetails

* Fix re-exporting

* Change JS node core module heuristic to same-file utilization

* Remove unused method

* Remove other unused method

* Remove unused triple-slash ref

* Update comment

* Refactor findAlias to forEachAlias to reduce iterations

* Really fix re-exporting

* Use getModuleSpecifier instead of custom hack

* Fix offering auto imports to paths within node modules

* Rename things and make comments better

* Add another reexport test

* Inline `symbolHasBeenSeen`

* Simplify forEachAlias to findAlias

* Add note that symbols is mutated

* Symbol order doesn’t matter here

* Style nits

* Add test with nested package.jsons

* Fix and add tests for export * re-exports

* Don’t fail when alias isn’t found

* Make some easy optimizations

* Clean up memoization when done

* Remove unnecessary semicolon

* Make getSymbolsFromOtherSourceFileExports pure

* Cache auto imports

* Revert "Cache auto imports"

This reverts commit 8ea4829587.

* Handle merged symbols through cache

* Be safer with symbol declarations, add logging

* Improve cache invalidation for imports and exports

* Check symbol presence first

* Only run cache invalidation logic if there’s something to clear

* Consolidate cache invalidation logic

* Fix reuseProgramStructure test

* Add more logging

* Only clear cache if symbols are different

* Refactor ambient module handling

* Finish(?) sourceFileHasChangedOwnImportSuggestions

* Make package.json info model better

* Fix misplaced paren

* Use file structure cache for package.json detection when possible

* Revert unnecessary changes in moduleSpecifiers

* Revert more unnecessary changes

* Don’t watch package.jsons inside node_modules, fix tests

* Work around declaration emit bug

* Sync submodules?

* Delete unused type

* Add server cache tests

* Fix server fourslash editing

* Fix packageJsonInfo tests

* Add node core modules cache test and fix more fourslash

* Clean up symlink caching

* Improve logging

* Function name doesn’t make any sense anymore

* Move symlinks cache to host

* Fix markFileAsDirty from ScriptInfo

* Mark new Project members internal

* Use Path instead of fileName

* Rename AutoImportSuggestionsCache

* Improve WatchType description

* Remove entries() from packageJsonCache

* Fix path/fileName bug

* Also cache symlinks on Program for benefit of d.ts emit

* Let language service use Program’s symlink cache
2019-09-27 13:38:31 -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
Andrew Branch
7d9b22eea0 Add semicolon preference to formatter options (#33402)
* Add UserPreferences for semicolons

* Prototype formatter semicolon removal

* Implement semicolon insertion

* Fix existing tests

* Start adding tests

* Fix some edge cases of semicolon deletion

* Fix semicolon removal before comments

* Fix indentation

* Test on checker

* Replace semicolon-omitting writer with formatter preference

* Fix writing new nodes, update protocol

* Rename option

* Really fix formatting synthetic nodes

* Fix refactoring misses

* Un-update submodules gahhhh

* Update APIs

* Update for ESLint

* Revert accidental test change

* De-kludge deduplication of EOF processing

* Omit last element semicolon from single-line object-like types

* Revert "Omit last element semicolon from single-line object-like types"

This reverts commit 5625cb0237.

* Fix straggler test

* Add test for leading semicolon class members

* Rename a lot of stuff for clarity

* Invert some boolean logic
2019-09-26 13:23:29 -07:00
Anders Hejlsberg
3061a418a4 Add getTypeArguments method to TypeChecker interface 2019-09-24 11:53:49 -07:00
Nathan Shively-Sanders
f1104806d5 Merge pull request #33263 from microsoft/infer-from-usage/similarity-to-builtins
Infer from usage by similarity to builtin types
2019-09-24 07:44:34 -07:00
Nathan Shively-Sanders
84e857b6f3 use forEachEntry 2019-09-23 15:57:32 -07:00
xiaofa
67aa2b22ac fix conflicts 2019-09-17 19:02:44 +08:00
xiaofa
58e0469252 fix typo 2019-09-17 18:56:19 +08:00
kingwl
93a250b9a6 fix duplicate async modifier codefix 2019-09-14 02:22:59 +08:00
Nathan Shively-Sanders
de7d68a6d8 Even more renaming 2019-09-12 11:30:51 -07:00
Nathan Shively-Sanders
b69f5af08e Merge branch 'master' into infer-from-usage/similarity-to-builtins 2019-09-12 10:50:13 -07:00
Orta
e8fc62e1a2 Merge pull request #33300 from JoshuaKGoldberg/too-large-integer-bigint-codefix
Added codefix for numeric literals >= 2 ** 53
2019-09-11 22:53:19 +02:00
Josh Goldberg
99f9719ab3 Added codefix for numeric literals >= 2 ** 53
`Number.MAX_SAFE_INTEGER` is `2 ** 53 - 1`, so anything greater than that is a 'dangerous' integer to store as a traditional number. This adds a codefix to suggest converting them to a `bigint` literal.
2019-09-07 18:43:32 -04:00
Nathan Shively-Sanders
330e51f098 Add test + reshuffle/rename new code 2019-09-06 15:15:19 -07:00
Nathan Shively-Sanders
1703ae0f46 Renames and more cleanup 2019-09-06 11:27:34 -07:00
Nathan Shively-Sanders
f394190572 Tonnes of cleanup 2019-09-06 11:18:50 -07:00
Nathan Shively-Sanders
d32c6b2df1 Fallback type is always any now
void is explicitly inferred now, never used as a fallback.
2019-09-05 16:21:08 -07:00
Nathan Shively-Sanders
052a3d9d73 Infer void from expr statement usage, not calls
This makes inferences a lot better.
2019-09-05 16:16:35 -07:00
Nathan Shively-Sanders
383286ff53 Add type parameter inference
It's a smeary copy of the checker's type parameter, so I feel bad about
duplicating that code. Not sure what the solution is, architecturally.
2019-08-30 13:44:06 -07:00
xiaofa
909bc61f01 Add convert const to let 2019-08-30 18:05:07 +08:00
Nathan Shively-Sanders
37150d9cb5 Turn on findBuiltinTypes
Type parameter inference is special-cased, just moved from its previous
place with no improvement.
2019-08-29 12:40:33 -07:00
Nathan Shively-Sanders
945d423ef5 Fix bugs in combineUsages/getSignatureFromCalls 2019-08-28 14:12:21 -07:00
Alexander T
f8ab00b407 Merge branch 'master' of https://github.com/Microsoft/TypeScript into feature/eslint 2019-08-28 10:11:38 +03:00
Nathan Shively-Sanders
d347b08a42 Copied from old branch
1. Everything explodes! Out of stack space!
2. Results aren't used yet.
3. But call and construct use the new getSignatureFromCalls, so I expect
some baseline changes after I get the infinite recursion fixed.
2019-08-27 13:13:58 -07:00
Nathan Shively-Sanders
4fc12d7b03 Close over common variables in inferTypeFromReferences (#33095)
Also lots of renaming
2019-08-27 09:02:58 -07:00
Alexander T
acafb502cd Merge branch 'master' of https://github.com/Microsoft/TypeScript into feature/eslint 2019-08-27 09:30:31 +03:00
Nathan Shively-Sanders
e9073a863d Improve names in infer-from-usage (#33090)
Basically, drop "Context" from all names, because it just indicates that
it's an implementation of the State monad.
2019-08-26 13:20:42 -07:00
Nathan Shively-Sanders
21f192367a Fix infer from usage prop assignment (#33088)
* Add test case

* Fix infer from usage property assignment

Property assignment and shorthand property assignment were incorrectly
treated differently; both have ObjectLiteralExpression as a parent, but
the code previously assumed that property assignments had
ObjectLiteralExpression as parent.parent.

Also make fourslash directives case insensitive and less whitespace
sensitive.

* Add "incorrect 3-slash" error to fourslash parsing.
2019-08-26 10:42:17 -07:00
Alexander T
acc653a23f Merge branch 'master' of https://github.com/Microsoft/TypeScript into feature/eslint 2019-08-22 09:46:22 +03:00
Ryan Cavanaugh
016884d48c Add assert comments in CodeFixes and Refactors (#33016)
* Add comments to assert calls

* Add comments to assert calls in codefixes

* So linty
2019-08-21 14:22:17 -07:00
Alexander T
0d941d6943 Merge branch 'master' of https://github.com/Microsoft/TypeScript into feature/eslint 2019-08-21 10:02:57 +03:00
Andrew Branch
5d04250ea8 Improve “Add missing await” fix-all (#32922)
* Improve codeFixAll for add missing await

* Improve add missing await for initializers and fix-all

* Fix when only one side of a binary expression can have its initializer fixed
2019-08-20 16:53:28 -07:00
Alexander
a7f41621fb Merge branch 'master' of https://github.com/Microsoft/TypeScript into feature/eslint 2019-08-17 16:37:39 +03:00
Hoang Pham
46b7972885 Add JSX codefix if available (#32281)
* Add JSX codefix if available

* Update react jsx.

* Update diagnostic code.
2019-08-16 12:46:55 -07:00