This commit adds attribute completion to the Language Service. It completes
from 3 sources:
1. inputs/outputs of directives currently present on the element
2. inputs/outputs/attributes of directives in scope for the element, that
would become present if the input/output/attribute was added
3. DOM properties and attributes
We distinguish between completion of a property binding (`[foo|]`) and a
completion in an attribute context (`foo|`). For the latter, bindings to
the attribute are offered, as well as a property binding which adds the
square bracket notation.
To determine hypothetical matches (directives which would become present if
a binding is added), directives in scope are scanned and matched against a
hypothetical version of the element which has the attribute.
PR Close#40032
This commit adds two new APIs to the `TemplateTypeChecker`:
`getPotentialDomBindings` and `getDirectiveMetadata`. Together, these will
support the Language Service in performing autocompletion of directive
inputs/outputs.
PR Close#40032
The `annotations` package in the compiler previously contained a registry
which tracks NgModule scopes for template type-checking, including unifying
all type-checking metadata across class inheritance lines.
This commit generalizes this utility and prepares it for use in the
`TemplateTypeChecker` as well, to back APIs used by the language service.
PR Close#40032
This commit expands the autocompletion capabilities of the language service
to include element tag names. It presents both DOM elements from the Angular
DOM schema as well as any components (or directives with element selectors)
that are in scope within the template as options for completion.
PR Close#40032
This commit extends the template targeting system, which determines the node
being referenced given a template position, to return additional context if
needed about the particular aspect of the node to which the position refers.
For example, a position pointing to an element node may be pointing either
to its tag name or to somewhere in the node body. This is the difference
between `<div|>` and `<div foo | bar>`.
PR Close#40032
The vim editor produces temporarily files that can end in both .swo and
.swp. This commits add .swp to the .gitignore so we don't accidentaly
commit temporary files.
PR Close#40094
This commit replaces `bazel` with `yarn bazel` in the error message (that instructs to regenerate golden file)
thrown while executing compliance tests. We use `yarn bazel` in other places (so we use the local version of bazel,
not the global one).
PR Close#40078
Projects opened in the LS are often larger in scope than the compilation
units seen by the compiler when actually building. For example, in the LS
it's not uncommon for the project to include both application as well as
test files. This can create issues when the combination of files results
in errors that are not otherwise present - for example, if test files
have inline NgModules that re-declare components (a common Angular pattern).
Such code is valid when compiling the app only (test files are excluded, so
only one declaration is seen by the compiler) or when compiling tests only
(since tests run in JIT mode and are not seen by the AOT compiler), but when
both sets of files are mixed into a single compilation unit, the compiler
sees the double declaration as an error.
This commit attempts to mitigate the problem by forcing the compiler flag
`compileNonExportedClasses` to `false` in a LS context. When tests contain
duplicate declarations, often such declarations are inline in specs and not
exported from the top level, so this flag can be used to greatly improve the
IDE experience.
PR Close#40092
When `checkTypeOfPipes` is set to `false`, the configuration is meant to
ignore the signature of the pipe's `transform` method for diagnostics.
However, we still should produce some information about the pipe for the
`TemplateTypeChecker`. This change refactors the returned symbol for
pipes so that it also includes information about the pipe's class
instance as it appears in the TCB.
PR Close#39555
The TCB utility functions used to find nodes in the TCB are currently
configured to ignore results when an ignore marker is found. However,
these ignore markers are only meant to affect diagnostics requests. The
Language Service may have a need to find nodes with diagnostic ignore
markers. The most common example of this would be finding references for
generic directives. The reference appears to the generic directive's
class appears on the type ctor in the TCB, which is ignored for
diagnostic purposes.
These functions should only skip results when the request is in the
context of a larger request for _diagnostics_. In all other cases, we
should get matches, even if a diagnostic ignore marker is encountered.
PR Close#40071
The ignore marker is only used to ignore certain nodes in the TCB for
the purposes of diagnostics. The marker itself has been renamed as well
as the helper function to see if the marker is present. Both now
indicate that the marker is specifically for diagnostics.
PR Close#40071
With regard to the code in `router_module.ts`, the correct equivalent for `enabled`
should be` enabledBlocking` and not `enabledNonBlocking`.
PR Close#40061
This commit adds the ability to find references for a directive or component
from within a component template. That is, you can find component references
from the element tag `<my-c|omp></my-comp>` (where `|` is the cursor position)
as well as find references for directives that match a given attribute
`<div d|ir></div>`.
PR Close#40054
If we've already identified that we are within a `keySpan` of a node, we
exit the visitor logic early. It can be the case that we have two nodes
which technically match a given location when the end span of one node
touches the start of the keySpan for the candidate node. Because
our `isWithin` logic is inclusive on both ends, we can match both nodes.
This change exits the visitor logic once we've identified a node where
the position is within its `keySpan`.
PR Close#40047
The visitor has a check in it with the goal of preventing the structural directive
parent elements from matching when we have already found the candidate we want.
However, this code did not check to ensure that it was looking at the correct
type of node for this case and was evaluating this logic in places it shouldn't.
This special check can be more easily done by simply not traversing the
template children if we've already found a candidate on the template
node itself.
PR Close#40047
This commit moves the code for cleaning jqLite/jQuery data on an element
to a re-usable helper function. This way it is easier to keep the code
consistent across all places where we need to clean data (now and in the
future).
PR Close#40045
Prior to this change, the `setClassMetadata` call would be invoked
inside of an IIFE that was marked as pure. This allows the call to be
tree-shaken away in production builds, as the `setClassMetadata` call
is only present to make the original class metadata available to the
testing infrastructure. The pure marker is problematic, though, as the
`setClassMetadata` call does in fact have the side-effect of assigning
the metadata into class properties. This has worked under the assumption
that only build optimization tools perform tree-shaking, however modern
bundlers are also able to elide calls that have been marked pure so this
assumption does no longer hold. Instead, an `ngDevMode` guard is used
which still allows the call to be elided but only by tooling that is
configured to consider `ngDevMode` as constant `false` value.
PR Close#39987
Allow configuration of `relativeTo` in the `routerLink` directive. This
is related to the clearing of auxiliary routes, where you need to use
`relativeTo: route.parent` in order to clear it from the activated
auxiliary component itself. This is because `relativeTo: route` will
consume the segment that we're trying to clear, so there is really no
way to do this with routerLink at the moment.
Related issue: #13523
Related (internal link): https://yaqs.corp.google.com/eng/q/5999443644645376
PR Close#39720
Currently the compiler treats something like `{{ '{{a}}' }}` as a nested
binding and throws an error, because it doesn't account for quotes
when it looks for binding characters. These changes add a bit of
logic to skip over text inside quotes when parsing.
Fixes#39601.
PR Close#39826
This commit adds support to the Language Service for autocompletion within
expression contexts. Specifically, this is auto completion of property reads
and method calls, both in normal and safe-navigational forms.
PR Close#39727
When `checkTypeOfOutputEvents` is `false`, we still need to produce the access
to the `EventEmitter` so the Language Service can still get the
type information about the field. That is, in a template `<div
(output)="handle($event)"`, we still want to be able to grab information
when the cursor is inside the "output" parens. The flag is intended only
to affect whether the compiler produces diagnostics for the inferred
type of the `$event`.
PR Close#39515
PR #39665 added the `keySpan` to the output field access so we no longer
need to get there from the call expression and can instead just find the
node we want directly.
PR Close#39515
These tests started failing because they had type-check
errors in their templates, and a recent commit turned on
full template type-checking by default.\
This commit fixes those templates and updates the expected
files as necessary.
PR Close#40040
These tests do not pass the typecheck phase of the compiler and fail.
The option to disable typechecking was removed recently so these tests
need to be fixed to be valid applications.
PR Close#40033
A couple reasons to justify removing the flag:
* It adds code to the compiler that is only meant to support test cases
and not any production. We should avoid code in that's only
meant to support tests.
* The flag enables writing tests that do not mimic real-world behavior
because they allow invalid applications
PR Close#40013
Rather than returning `null`, we can provide some useful information to the Language Service
by returning a symbol for the `addEventListener` function call when the consumer
of a binding as an element.
PR Close#39312
Previously, due to the way the AngularJS and Angular clean-up processes
interfere with each other when removing an AngularJS element that
contains a downgraded Angular component, the data associated with the
host element of the downgraded component was not removed. This data was
kept in an internal AngularJS cache, which prevented the element and
component instance from being garbage-collected, leading to memory
leaks.
This commit fixes this by ensuring the element data is explicitly
removed when cleaning up a downgraded component.
NOTE:
This is essentially the equivalent of #26209 but for downgraded (instead
of upgraded) components.
Fixes#39911Closes#39921
PR Close#39965
The prior usage of a ternary expression caused the code to be formatted
in a weird way, so this commit replaces the ternary with an `if` statement.
PR Close#39961
Prior to this change the interpolation config value was cast to
`[string, string]` without checking whether there really were two
string values available. This commit extracts the logic of parsing the
interpolation config into a separate function and adds a check that
the array contains exactly two strings.
PR Close#39961
This change allows the `AstObject` and `AstValue` types to provide
their represented type as a generic type argument, which is helpful
for documentation and discoverability purposes.
PR Close#39961
This allows the code generation to correspond with a type, which is
helpful for documentation and discoverability purposes. This does not
offer any type-safety with respect to the actually generated code.
PR Close#39961
When the compiler option `checkTypeOfAttributes` is `false`, we should
still be able to produce type information from the
`TemplateTypeChecker`. The current behavior ignores all attributes that
map to directive inputs. This commit includes those attribute bindings
in the TCB but adds the "ignore for diagnostics" marker so they do not
produce errors. This way, consumers of the TTC (the Language Service)
can still get valid information about these attributes even when the
user has configured the compiler to not produce diagnostics/errors for them.
PR Close#39537
The golden files for the partial compliance tests need to be updated
with individual Bazel run invocations, which is not very ergonomic when
a large number of golden files need to updated. This commit adds a
script to query the Bazel targets that update the goldens and then runs
those targets sequentially.
PR Close#39989
This test migrates source-mapping tests to the new compliance test framework.
The original tests are found in the file at:
`packages/compiler-cli/test/ngtsc/template_mapping_spec.ts`.
These new tests also check the mappings resulting from partial compilation
followed by linking, after flattening the pair of source-maps that each
process generates.
Note that there are some differences between the mappings for full compile
and linked compile modes, due to how TypeScript and Babel use source-span
information on AST nodes. To accommodate this, there are two expectation
files for most of these source files.
PR Close#39939
This commit allows compliance test-cases to be written that specify
source-map mappings between the source and generated code.
To check a mapping, add a `// SOURCE:` comment to the end of a line:
```
<generated code> // SOURCE: "<source-url>" <source code>
```
The generated code will still be checked, stripped of the `// SOURCE` comment,
as normal by the `expectEmit()` helper.
In addition, the source-map segments are checked to ensure that there is a
mapping from `<generated code>` to `<source code>` found in the file at
`<source-url>`.
Note:
* The source-url should be absolute, with the directory containing the
TEST_CASES.json file assumed to be `/`.
* Whitespace is important and will be included when comparing the segments.
* There is a single space character between each part of the line.
* Newlines within a mapping must be escaped since the mapping and comment
must all appear on a single line of this file.
PR Close#39939
Previously one could set a flag in a `TEST_CASES.json` file to exclude
the test-cases from being run if the input files were being compiled
partially and then linked.
There are also scenarios where one might want to exclude test-cases
from "full compile" mode test runs.
This commit changes the compliance test tooling to support a new
property `compilationModeFilter`, which is an array containing one or
more of `"full compile"` and `"linked compile"`. Only the tests
whose `compilationModeFilter` array contains the current compilation
mode will be run.
PR Close#39939
Previously files were serialized with an extra newline seperator that
was not removed when parsing. This caused the parsed file to start with
an extra newline that invalidated its source-map.
Also, the splitting was producing an empty entry at the start of the extracted
golden files which is now ignored.
PR Close#39939
The schema accidentally included the `expectedErrors` and `extraCheck`
properties below the `files` property instead of below the `expectations`
property.
PR Close#39939
Add a TaggedTemplateExpr to represent tagged template literals in
Angular's syntax tree (more specifically Expression in output_ast.ts).
Also update classes that implement ExpressionVisitor to add support for
tagged template literals in different contexts, such as JIT compilation
and conversion to JS.
Partial support for tagged template literals had already been
implemented to support the $localize tag used by Angular's i18n
framework. Where applicable, this code was refactored to support
arbitrary tags, although completely replacing the i18n-specific support
for the $localize tag with the new generic support for tagged template
literals may not be completely trivial, and is left as future work.
PR Close#39122
Alex Rickabaugh
Zach Arend
Andrew Kushnir
JiaLiPassion
Andrew Scott
Miloš Lapiš
Keen Yee Liau
George Kalpakas
JoostK
Kristiyan Kostadinov
Pete Bacon Darwin
Julien
Benjamin Kindle
Christoph Guttandin
Daniel Eisterhold
Kalle Järvenpää
Bjarki