Commit Graph

196 Commits

Author SHA1 Message Date
Keen Yee Liau f3859ff2b9 test(language-service): remove MockData from MockTypescriptHost (#32752)
Remove MockData from the constructor parameters of MockTypescriptHost
since the entire Tour of Heroes (TOH) project is now loaded from disk.

Added a new method `reset()` to MockTypescriptHost that is necessary to
reset the state of the project before each spec if run to make sure
previous overrides are cleared.

PR Close #32752
2019-09-18 15:29:25 -07:00
Keen Yee Liau 708ae4c8ef fix(language-service): Fix failing tests after merge (#32758)
https://github.com/angular/angular/pull/32653 and
https://github.com/angular/angular/pull/32592 created a conflict in test
that caused CI to turn red. This PR fixes the failing tests.

PR Close #32758
2019-09-18 14:37:36 -07:00
ayazhafiz 5ace90f04d test(language-service): add missing tests for templateUrls (#32592)
Add missing tests for duplicate, missing template diagnostics

PR Close #32592
2019-09-18 13:35:53 -07:00
Keen Yee Liau 9d8dc793da test(language-service): Create proper test project (#32653)
Language service uses a canonical "Tour of Heroes" project to test
various features, but the files are all contained in test_data.ts which
is hard to read and often contains errors that are difficult to catch
without proper IDE syntax highlighting. The directory structure is also
not clear from first glance.

This PR refactors the test project into standalone files in the proper
format.

Next up:
[ ] Update the interface of MockTypeScript to only accept scriptNames.
[ ] Remove test_data.ts

PR Close #32653
2019-09-18 13:07:01 -07:00
ayazhafiz 2846505dbd feat(language-service): expose determining the NgModule of a Directive (#32710)
This sets up the Language Service to support #32565.
This PR exposes a `getDirectiveModule` method on `TypeScriptServiceHost`
that returns the NgModule owning a Directive given the Directive's
TypeScript node or its Angular `StaticSymbol`. Both types are supported
to reduce extraneous helper methods.

PR Close #32710
2019-09-18 12:59:35 -07:00
ayazhafiz 4c168ed9ba feat(language-service): provide diagnostics for invalid styleUrls (#32674)
Similar to diagnostics for invalid templateUrls, check that styleUrls
actually point to a valid Url.

Closes #32564.

PR Close #32674
2019-09-17 13:38:37 -07:00
cran-cg f6d66671b6 fix(compiler-cli): fix typo in diagnostic template info. (#32684)
Fixes #32662

PR Close #32684
2019-09-16 08:59:48 -07:00
ayazhafiz e1065eec5b refactor(language-service): let -> const (#32668)
Another flyby cleanup

PR Close #32668
2019-09-13 08:56:43 -07:00
ayazhafiz c442c0334f refactor(language-service): remove non-null assertion on MockHost member (#32666)
`nodeModulesPath` is now initialized in the constructor, so there is no
need for a non-null assertion as suggested in #24571.

PR Close #32666
2019-09-13 08:51:51 -07:00
ayazhafiz c7ea3260bc refactor(language-service): remove callback functions in test code (#32656)
Removes `addCodeAndCallback` function, opting instead to add code to a
file and then testing expectations on that fileName. Also renames
`contains` to `expectContains` to clarify its expectations.

PR Close #32656
2019-09-13 08:51:30 -07:00
Keen Yee Liau bbb2798d41 fix(language-service): Use tsLSHost.fileExists() to resolve modules (#32642)
The ModuleResolutionHost implementation inside ReflectorHost currently
relies on reading the snapshot to determine if a file exists, and use
the snapshot to retrieve the file content.
It is more straightforward and efficient to use the already existing
method fileExists() instead.

At runtime, the TypeScript LanguageServiceHost is really a Project, so
both fileExists() and readFile() methods are defined.

As a micro-optimization, skip fs lookup for tsx files.

PR Close #32642
2019-09-12 17:18:06 -07:00
Keen Yee Liau e82f56b96f feat(language-service): enable logging on TypeScriptHost (#32645)
This PR adds loggin methods to TypeScriptHost so that proper logging
to file could be done.
Three new methods are added: log(), error(), and debug().

PR Close #32645
2019-09-12 14:02:18 -07:00
ayazhafiz adeee0fa7f feat(language-service): provide diagnostic for invalid templateUrls (#32586)
`templateUrls` that do not point to actual files are now diagnosed as such
by the Language Service. Support for `styleUrls` will come in a next PR.

This introduces a utility method `getPropertyValueOfType` that scans
TypeScript ASTs until a property assignment whose initializer of a
certain type is found. This PR also notices a couple of things that
could be improved in the language-service implementation, such as
enumerating directive properties and unifying common logic, that will be
fixed in future PRs.

Part of #32564.

PR Close #32586
2019-09-12 11:47:44 -07:00
Keen Yee Liau 1771d6ff25 fix(language-service): Lazily instantiate MetadataResolver (#32631)
The instantiation of the resolver also requires instantiation of the
StaticReflector, and the latter requires resolution of core Angular symbols.
Module resolution should not be done during instantiation to avoid potential
cyclic dependency between the plugin and the containing Project, so the
Singleton pattern is used to create the resolver.

PR Close #32631
2019-09-12 10:24:32 -07:00
Keen Yee Liau 7a569a7c52 test(language-service): Make tests better by adding more assertions (#32630)
This commit adds more assertions to a few smoke tests in typescript_host_spec.ts

PR Close #32630
2019-09-12 10:23:51 -07:00
ayazhafiz b6f439d91b refactor(language-service): remove unnecessary size check (#32587)
Presumably, the size of the results array was checked so that a TS
source file wouldn't have to be created if there were no diagnostics.
However, it is very likely that a TS program already has the
`ts.SourceFile` for file when diagnostics are queried. This removal is
just to make the function a minimal amount simpler.

PR Close #32587
2019-09-11 19:28:23 -04:00
ayazhafiz d30cd3309b refactor(language-service): move to using mockHost as much as possible (#32589)
Update tests that still do not use `mockHost` for certain operations,
like `addCode`.

PR Close #32589
2019-09-11 19:27:27 -04:00
Andrius 4f033235b1 perf(language-service): keep analyzedModules cache when source files don't change (#32562)
This change will improve performance of language service when working in external templates.

PR Close #32562
2019-09-11 19:13:34 -04:00
Keen Yee Liau 6052b12fb3 fix(language-service): Use module resolution cache (#32479)
This PR fixes a critical performance issue where the language
service makes a MASSIVE number of filesystem calls when performing
module resolution.
This is because there is no caching. To make matters worse, module
resolution is performed for **every** program change (which means every
few keystrokes trigger a massive number of fs calls).

PR Close #32479
2019-09-10 06:31:59 -04:00
ayazhafiz a391aebbcf feat(language-service): add definitions for styleUrls (#32464)
Adds support for `styleUrls` definitions in the same way `templateUrl`
definitions are provided; clicking on styleUrl will take a user to the
respective file.

Unifies some code in determining a URL definition. We first check if a
url is a `templateUrl`; if it's not, we check that it's a `styleUrl` or
return no definitions.

PR Close #32464
2019-09-09 16:04:14 -04:00
Keen Yee Liau a65d3fa1de fix(language-service): Return empty external files during project initialization (#32519)
This PR partially fixes a circular dependency problem whereby the
creation of a project queries Angular plugin for external files, but
the discovery of external files requires root files to be defined in a
Project. The right approach is to return empty array if Project has no
root files.

PR Close #32519
2019-09-09 12:22:19 -04:00
Keen Yee Liau f6e88cd659 fix(language-service): Use ts.CompletionEntry for completions (#32375)
This is a prerequisite to fix a bug in template completions whereby
completion of the string `ti` for the variable `title` results in
`tititle`.

This is because the position where the completion is requested is used
to insert the completion text. This is incorrect. Instead, a
`replacementSpan` should be used to indicate the span of text that needs
to be replaced. Angular's own `Completion` interface is insufficient to
hold this information. Instead, we should just use ts.CompletionEntry.

Also added string enum for `CompletionKind`, which is similar to
ts.ScriptElementKind but contains more info about HTML entities.

PR Close #32375
2019-09-04 11:53:14 -07:00
ayazhafiz 1ed3531049 fix(language-service): re-add regressed templateUrl tests (#32438)
Commit 18ce58 (per #32378) regressed tests for templateUrl definitions.
This PR re-adds those tests.

PR Close #32438
2019-09-03 11:59:13 -07:00
ayazhafiz 47a4edb817 refactor(language-service): rename `host` to `tsLsHost` (#32346)
Disambiguate the name of the Language Service Host used in constructing
a TypeScript Language Service Host by renaming the `host` property to
`tsLsHost`.

PR Close #32346
2019-08-28 21:27:15 -07:00
Keen Yee Liau 18ce58c2bc refactor(language-service): cleanup tests for Hover (#32378)
Move generic test methods to `MockTypescriptHost` so they could be
shared across all tests.

This is in preparation for adding more tests to Hover when new features
get added.

PR Close #32378
2019-08-28 17:25:07 -07:00
Keen Yee Liau 852afb312a fix(language-service): Create DirectiveKind enum (#32376)
Hovering over a selector, the QuickInfo display string is something
like:
```
(component) AppComponent
```
where `component` is the symbol kind.
Prior to this, there was no types to indicate the possible values of a
symbol. This PR creates an enum to represent that.

PR Close #32376
2019-08-28 17:23:53 -07:00
Keen Yee Liau 97fc45f32a fix(language-service): Invalidate Reflector caches when program changes (#32357)
This commit fixes a bug introduced in the recent refactoring whereby
caches become stale when the program changes.
This is because StaticReflector keeps its own caches that are not
clearable. The previous refactoring tried to reuse the same instance,
leading to out-of-sync program state.

Clearing out the *entire* cache is very inefficient. Instead, we could
just invalidate the symbols in the files that have changed. This
requires changes to the API of StaticReflector, but put this on hold
until the refactoring of language service for Ivy commences.

PR closes https://github.com/angular/angular/issues/32301

PR Close #32357
2019-08-28 17:22:50 -07:00
ayazhafiz 46caf88b2c feat(language-service): add definitions for templateUrl (#32238)
Adds support for `getDefinitionAt` when called on a templateUrl
property assignment.

The currrent architecture for getting definitions is designed to be
called on templates, so we have to introduce a new
`getTsDefinitionAndBoundSpan` method to get Angular-specific definitions
in TypeScript files and pass a `readTemplate` closure that will read the
contents of a template using `TypeScriptServiceHost#getTemplates`. We
can probably go in and make this nicer in a future PR, though I'm not
sure what the best architecture should be yet.

Part of angular/vscode-ng-language-service#111

PR Close #32238
2019-08-28 17:09:46 -07:00
Kara Erickson 24127a2492 refactor(core): remove misc, completely unused functions from DomAdapter (#32278)
PR Close #32278
2019-08-26 10:39:09 -07:00
ayazhafiz c624b14e8e refactor(language-service): add generic decorator property verifications (#32252)
This PR makes finding class declarations properties in decorators are
applied to more generic to all properties that may be in a decorator,
and adds helper methods enabling getting the property assignment of a
property value and verifying that a property assignment is actually in a
decorator applied to a class.

This is done so that it will be easier to provide Angular definitions
for decorator properties moving forward. Most immediately, this will
provide decorator class verification for #32238.

PR Close #32252
2019-08-22 16:04:14 -07:00
Keen Yee Liau 6d11154652 refactor(language-service): Remove redudant 'TemplateInfo' type (#32250)
The TemplateInfo type is an extension of AstResult, but it is not
necessary at all. Instead, improve the current interface for AstResult
by removing all optional fileds and include the TemplateSource in
AstResult instead.

PR Close #32250
2019-08-22 12:32:41 -07:00
Keen Yee Liau 5c94833b8f test(language-service): Add test for CRLF line endings (#32245)
This commit adds a no-op test for exposing the bug in the way language
service handles CRLF line endings in templates.
There is no easy fix for now, but the test should be enabled once a fix
is in place.

PR Close #32245
2019-08-21 15:21:09 -07:00
Keen Yee Liau 5f76de1d71 test(language-service): Fix diagnostic tests (#32161)
This commit fixes many diagnostic tests have have incorrect/uncaught assertions.
Also added more assertions to make sure TS diagnostics are clear.
A few test util methods are removed to reduce clutter and improve readability.

PR Close #32161
2019-08-16 15:26:05 -07:00
Keen Yee Liau 71ada483bf refactor(language-service): Omit typechecking for finding directives (#32156)
Remove unnecessary private method `getDeclarationFromNode` and moved
some logic to utils instead so that it can be tested in isolation of the
Language Service infrastructure.
The use of typechecker to check the directive is also not necessary,
since resolve.getNonNormalizedDirectiveMetadata() will check if the
directive is actually an Angular entity.

PR Close #32156
2019-08-16 09:58:28 -07:00
Keen Yee Liau 69ce1c2d41 refactor(language-service): Cleanup diagnostics (#32152)
PR Close #32152
2019-08-15 12:51:46 -07:00
Keen Yee Liau 6a0b1d58ba fix(language-service): Instantiate MetadataResolver once (#32145)
Instead of destroying and recreating MetadataResolver every time the
program changes, create one instance and reuse it throughout the
lifetime of the language service.
Since Angular StaticSymbols are invalidated when program gets
out-of-date, this should be safe.
This should make the language service more more performant.

PR Close #32145
2019-08-15 12:51:02 -07:00
Keen Yee Liau 40b28742a9 refactor(language-service): Differentiate Inline and External template (#32127)
This commit creates two concrete classes Inline and External
TemplateSource to differentiate between templates in TS file and
HTML file.
Knowing the template type makes the code much more explicit which
filetype we are dealing with.

With these two classes, there is no need for `getTemplateAt()` method in
TypeScriptHost. Removing this method is safe since it is not used in the
extension. This reduces the API surface of TypescriptHost.

PR Close #32127
2019-08-15 10:04:17 -07:00
Keen Yee Liau 5a562d8a0a refactor(language-service): Return ts.CompletionInfo for getCompletionsAt() (#32116)
Part 3/3 of language-service refactoring:
Change all language service APIs to return TS value since Angular LS
will be a proper tsserver plugin. This reduces the need to transform
results among Angular <--> TS <--> LSP.

PR Close #32116
2019-08-14 14:09:51 -07:00
Keen Yee Liau 9808d91c62 refactor(language-service): Cleanup TypescriptHost (#32017)
Cleanup the logic in TypeScriptHost as to when langauge service state
should be synchronized with the editor state.

The model employed follows that of tsserver, in which case it is the
caller's responsiblity to synchronize host data before any LS methods
are called.

PR Close #32017
2019-08-14 11:57:48 -07:00
Keen Yee Liau a5f39aeda6 refactor(language-service): Return ts.Diagnostic[] for getDiagnostics (#32115)
Part 2/3 of language service refactoring:
Now that the language service is a proper tsserver plugin, all LS
interfaces should return TS values. This PR refactors the
ng.getDiagnostics() API to return ts.Diagnostic[] instead of
ng.Diagnostic[].

PR Close #32115
2019-08-13 11:20:27 -07:00
Keen Yee Liau a91ab15525 fix(language-service): Remove 'context' used for module resolution (#32015)
The language service relies on a "context" file that is used as the
canonical "containing file" when performing module resolution.
This file is unnecessary since the language service host's current
directory always default to the location of tsconfig.json for the
project, which would give the correct result.

This refactoring allows us to simplify the "typescript host" and also
removes the need for custom logic to find tsconfig.json.

PR Close #32015
2019-08-13 11:19:18 -07:00
Keen Yee Liau a8e2ee1343 fix(language-service): Make Definition and QuickInfo compatible with TS LS (#31972)
Now that the Angular LS is a proper tsserver plugin, it does not make
sense for it to maintain its own language service API.

This is part one of the effort to remove our custom LanguageService
interface.
This interface is cumbersome because we have to do two transformations:
  ng def -> ts def -> lsp definition

The TS LS interface is more comprehensive, so this allows the Angular LS
to return more information.

PR Close #31972
2019-08-08 12:00:56 -07:00
Keen Yee Liau 7b9891d7cd feat(language-service): Introduce 'angularOnly' flag (#31935)
This PR changes the language service to work in two different modes:

1. TS + Angular
   Plugin augments TS language service to provide additonal Angular
   information. This only works with inline template and is meant to be
   used as a local plugin (configured via tsconfig.json).
2. Angular only
   Plugin only provides information on Angular templates, no TS info at
   all. This effectively disables native TS features and is meant for
   internal use only.

Default mode is `angularOnly = false` so that we don't break any users
already using Angular LS as local plugin.

As part of the refactoring, `undefined` is removed from type aliases
because it is considered bad practice.

go/tsstyle#nullableundefined-type-aliases
```
Type aliases must not include |null or |undefined in a union type.
Nullable aliases typically indicate that null values are being passed
around through too many layers of an application, and this clouds the
source of the original issue that resulted in null. They also make it
unclear when specific values on a class or interface might be absent.
```

PR Close #31935
2019-08-01 17:43:21 -07:00
Keen Yee Liau e8b8f6d09b fix(language-service): getSourceFile() should only be called on TS files (#31920)
PR Close #31920
2019-08-01 10:10:09 -07:00
Keen Yee Liau 584b42343f build: Do not generate *.umd.min.js for language service (#31917)
`language-service.umd.min.js` takes a long time to build (because of
running terser), but it is not used at all.
See https://unpkg.com/browse/@angular/language-service@8.1.3/package.json
where 'main' points to the unminified bundle.

PR Close #31917
2019-07-31 11:38:31 -07:00
Keen Yee Liau ce196105ce refactor(language-service): Remove unused class and method (#31597)
PR Close #31597
2019-07-22 09:52:42 -07:00
Ayaz Hafiz f65db20c6d feat(ivy): record absolute position of template expressions (#31391)
Currently, template expressions and statements have their location
recorded relative to the HTML element they are in, with no handle to
absolute location in a source file except for a line/column location.
However, the line/column location is also not entirely accurate, as it
points an entire semantic expression, and not necessarily the start of
an expression recorded by the expression parser.

To support record of the source code expressions originate from, add a
new `sourceSpan` field to `ASTWithSource` that records the absolute byte
offset of an expression within a source code.

Implement part 2 of [refactoring template parsing for
stability](https://hackmd.io/@X3ECPVy-RCuVfba-pnvIpw/BkDUxaW84/%2FMA1oxh6jRXqSmZBcLfYdyw?type=book).

PR Close #31391
2019-07-22 09:48:35 -07:00
Paul Gschwendtner 647d7bdd88 refactor: fix typescript strict flag failures in all tests (#30993)
Fixes all TypeScript failures caused by enabling the `--strict`
flag for test source files. We also want to enable the strict
options for tests as the strictness enforcement improves the
overall codehealth, unveiled common issues and additionally it
allows us to enable `strict` in the `tsconfig.json` that is picked
up by IDE's.

PR Close #30993
2019-07-18 14:21:26 -07:00
Keen Yee Liau 0110de2662 fix(language-service): Eagarly initialize data members (#31577)
Data members in TypeScriptServiceHost of Map type should be eagerly
initialized to address issue/24571. This eliminates the need to
constantly check for truthiness and makes code much more readable.

More PRs to follow to address issue/24571.

PR Close #31577
2019-07-16 14:26:16 -04:00
Keen Yee Liau 4ec50811d4 refactor(language-service): Remove NgLSHost -> NgLS dependency (#31122)
```
NgLSHost: AngularLanguageServiceHost
NgLS: AngularLanguageService
```

NgLSHost should not depend on NgLS, because it introduces circular
dependency.
Instead, the `getTemplateAst` and `getTemplatAstAtPosition` methods should
be moved to NgLSHost and exposed as public methods.
This removes the circular dependency, and also removes the need for the
awkward 'setSite' method in NgLSHost.

PR Close #31122
2019-06-19 15:19:56 -07:00