Go to file
Jessica Janiuk 290ea57a93 fix(core): Access injected parent values using SelfSkip (#39464)
In ViewEngine, SelfSkip would navigate up the tree to get tokens from
the parent node, skipping the child. This restores that functionality in
Ivy. In ViewEngine, if a special token (e.g. ElementRef) was not found
in the NodeInjector tree, the ModuleInjector was also used to lookup
that token. While special tokens like ElementRef make sense only in a
context of a NodeInjector, we preserved ViewEngine logic for now to
avoid breaking changes.

We identified 4 scenarios related to @SkipSelf and special tokens where
ViewEngine behavior was incorrect and is likely due to bugs. In Ivy this
is implemented to provide a more intuitive API. The list of scenarios
can be found below.

1. When Injector is used in combination with @Host and @SkipSelf on the
first Component within a module and the injector is defined in the
module, ViewEngine will get the injector from the module. In Ivy, it
does not do this and throws instead.

2. When retrieving a @ViewContainerRef while @SkipSelf and @Host are
present, in ViewEngine, it throws an exception. In Ivy it returns the
host ViewContainerRef.

3. When retrieving a @ViewContainerRef on an embedded view and @SkipSelf
is present, in ViewEngine, the ref is null. In Ivy it returns the parent
ViewContainerRef.

4. When utilizing viewProviders and providers, a child component that is
nested within a parent component that has @SkipSelf on a viewProvider
value, if that provider is provided by the parent component's
viewProviders and providers, ViewEngine will return that parent's
viewProviders value, which violates how viewProviders' visibility should
work. In Ivy, it retrieves the value from providers, as it should.

These discrepancies all behave as they should in Ivy and are likely bugs
in ViewEngine.

PR Close #39464
2020-11-06 09:23:45 -08:00
.circleci ci: bust cache of stored node_modules on CircleCI (#39461) 2020-10-27 14:53:09 -07:00
.devcontainer build: update the recommended `Dockerfile` for VSCode remote development (#34697) 2020-01-09 13:31:14 -08:00
.github ci: update NgBot config to include more labels that indicate that ticket is triaged (#39494) 2020-10-29 12:25:47 -07:00
.ng-dev build: add PullApprove: disable as a caretaker note label (#39430) 2020-10-28 10:59:09 -07:00
.vscode build: Ignore .history for the xyz.local-history VSCode extension (#38121) 2020-07-17 13:33:39 -07:00
.yarn build: update to latest version of yarn (#38869) 2020-09-18 16:47:33 -07:00
aio build(docs-infra): upgrade cli command docs sources to 0defb1136 (#39575) 2020-11-05 07:58:02 -08:00
dev-infra fix(dev-infra): run caretaker checks asyncronously (#39086) 2020-11-03 16:32:59 -08:00
docs docs: fix `yarn bazel` commands to run in `--silent` mode in `BAZEL.md` (#39455) 2020-10-27 13:35:37 -07:00
goldens fix(core): Access injected parent values using SelfSkip (#39464) 2020-11-06 09:23:45 -08:00
integration build: update to @angular/cli@11.0.0-rc.0 (#39432) 2020-10-29 13:47:12 -07:00
modules fix(platform-webworker): remove platform-webworker and platform-webworker-dynamic (#38846) 2020-09-30 09:13:59 -04:00
packages fix(core): Access injected parent values using SelfSkip (#39464) 2020-11-06 09:23:45 -08:00
scripts build: ensure script that build the Zone.js package can be run from any directory (#39455) 2020-10-27 13:35:37 -07:00
third_party fix(packaging): remove polyfills needed to run tests on IE9 and IE 10 (#38931) 2020-09-25 14:31:10 -04:00
tools build: update to cldr v37 (#39343) 2020-10-20 13:22:37 -07:00
.bazelignore build: add npm package manifest to npm_integration_test (#35669) 2020-02-26 12:58:35 -08:00
.bazelrc build: upgrade angular build, integration/bazel and @angular/bazel package to rule_nodejs 2.2.0 (#39182) 2020-10-08 11:54:59 -07:00
.bazelversion build: update bazelversion (#39351) 2020-10-21 11:59:40 -07:00
.clang-format feat(tooling): Add a .clang-format for automated JavaScript formatting. 2015-04-02 08:44:34 -07:00
.editorconfig build: use https link to editorconfig.org in .editorconfig (#27664) 2018-12-18 09:30:09 -08:00
.gitattributes test: fix ts api guardian and public guard tests on windows (#30105) 2019-04-26 16:32:22 -07:00
.gitignore build: add husky ignored files to .gitignore (#39388) 2020-10-27 11:07:22 -07:00
.gitmessage fix(platform-webworker): remove platform-webworker and platform-webworker-dynamic (#38846) 2020-09-30 09:13:59 -04:00
.mailmap build: add a Git .mailmap with my new name (#19550) 2017-10-09 14:35:30 -07:00
.nvmrc build: migrate to node@12.14.1 (#34955) 2020-01-27 09:31:22 -08:00
.pullapprove.yml ci: only check testing directories within packages/ for fw-testing (#39536) 2020-11-02 16:39:44 -08:00
.yarnrc build: update to latest version of yarn (#38869) 2020-09-18 16:47:33 -07:00
BUILD.bazel build: upgrade angular build, integration/bazel and @angular/bazel package to rule_nodejs 2.2.0 (#39182) 2020-10-08 11:54:59 -07:00
CHANGELOG.md docs: release notes for the v11.0.0-rc.2 release 2020-11-04 12:50:05 -08:00
CODE_OF_CONDUCT.md docs: add Discord as an official communication channel (#39149) 2020-10-14 10:23:15 -07:00
CONTRIBUTING.md docs(forms): update ngModel documentation (#39481) 2020-10-29 11:18:54 -07:00
LICENSE build: bump year (#34651) 2020-01-13 07:21:43 -08:00
README.md docs: typo fix for 'Intall' (#39585) 2020-11-06 09:16:04 -08:00
WORKSPACE build: update bazelversion (#39351) 2020-10-21 11:59:40 -07:00
browser-providers.conf.js ci: remove IE 9 and IE 10 from CI (#38931) 2020-09-25 14:31:10 -04:00
gulpfile.js build: revert back to downloading cldr-data directly rather than via npm (#39341) 2020-10-20 10:46:19 -07:00
karma-js.conf.js fix(core): detect DI parameters in JIT mode for downleveled ES2015 classes (#38463) 2020-08-17 10:55:37 -07:00
package.json build: update to CLI 11.0.0-rc.1 (#39432) 2020-10-29 13:47:12 -07:00
test-events.js build: update license headers to reference Google LLC (#37205) 2020-05-26 14:26:58 -04:00
test-main.js fix(platform-webworker): remove platform-webworker and platform-webworker-dynamic (#38846) 2020-09-30 09:13:59 -04:00
tslint.json refactor(dev-infra): create ng-dev executable locally in the repo (#39089) 2020-10-22 13:36:14 -07:00
yarn.lock build: update to CLI 11.0.0-rc.1 (#39432) 2020-10-29 13:47:12 -07:00
yarn.lock.readme.md build: remove travisci leftovers (#27979) 2019-01-09 10:41:16 -08:00

README.md

Angular - One framework. Mobile & desktop.

angular-logo
Angular is a development platform for building mobile and desktop web applications
using Typescript/JavaScript and other languages.

www.angular.io

Contributing Guidelines · Submit an Issue · Blog

CI status   Angular on npm   Discord conversation


Documentation

Get started with Angular, learn the fundamentals and explore advanced topics on our documentation website.

Advanced

Development Setup

Prerequisites

Setting Up a Project

Install the Angular CLI globally:

npm install -g @angular/cli

Create workspace:

ng new [PROJECT NAME]

Run the application:

cd [PROJECT NAME]
ng serve

Quickstart

Get started in 5 minutes.

Ecosystem

angular ecosystem logos

Changelog

Learn about the latest improvements.

Upgrading

Check out our upgrade guide to find out the best way to upgrade your project.

Contributing

Contributing Guidelines

Read through our contributing guidelines to learn about our submission process, coding rules and more.

Want to Help?

Want to file a bug, contribute some code, or improve documentation? Excellent! Read up on our guidelines for contributing and then check out one of our issues in the hotlist: community-help.

Code of Conduct

Help us keep Angular open and inclusive. Please read and follow our Code of Conduct.

Community

Join the conversation and help the community.

Love Angular badge

Love Angular? Give our repo a star ⬆️.