Commit Graph

635 Commits

Author SHA1 Message Date
Andrew Kushnir dee16a4355 fix(ivy): update ICU placeholders format to match Closure compiler (#31459)
Since `goog.getMsg` does not process ICUs (post-processing is required via goog.i18n.MessageFormat, https://google.github.io/closure-library/api/goog.i18n.MessageFormat.html) and placeholder format used for ICUs and regular messages inside `goog.getMsg` are different, the current implementation (that assumed the same placeholder format) needs to be updated. This commit updates placeholder format used inside ICUs from `{$placeholder}` to `{PLACEHOLDER}` to better align with Closure. ICU placeholders (that were left as is prior to this commit) are now replaced with actual values in post-processing step (inside `i18nPostprocess`).

PR Close #31459
2019-07-10 18:31:33 -04:00
Andrew Kushnir 76e3b57a12 test(ivy): verify no translations are generated for bound attributes (#31481)
This commit adds a test that verifies no translations are generated for bound attributes and also checks (as a part of the `verify` function) that VE and Ivy handle this case the same way.

PR Close #31481
2019-07-10 18:28:58 -04:00
crisbeto 23e0d65471 perf(ivy): add self-closing elementContainer instruction (#31444)
Adds a new `elementContainer` instruction that can be used to avoid two instruction (`elementContainerStart` and `elementContainerEnd`) for `ng-container` that has text-only content. This is particularly useful when we have `ng-container` inside i18n sections.

This PR resolves FW-1105.

PR Close #31444
2019-07-09 13:50:28 -07:00
Pete Bacon Darwin 98a68ad3e7 fix(ivy): handle namespaced imports correctly (#31367)
The ngcc tool adds namespaced imports to files when compiling. The ngtsc
tooling was not processing types correctly when they were imported via
such namespaces. For example:

```
export declare class SomeModule {
    static withOptions(...): ModuleWithProviders<ɵngcc1.BaseModule>;
```

In this case the `BaseModule` was being incorrectly attributed to coming
from the current module rather than the imported module, represented by
`ɵngcc1`.

Fixes #31342

PR Close #31367
2019-07-09 09:40:30 -07:00
crisbeto 02491a6ce8 refactor(ivy): move classMap interpolation logic internally (#31211)
Adds the new `classMapInterpolate1` through `classMapInterpolate8` instructions which handle interpolations inside the `class` attribute and moves the interpolation logic internally. This allows us to remove the `interpolationX` instructions in a follow-up PR.

These changes also add an error if an interpolation is encountered inside a `style` tag (e.g. `style="width: {{value}}"`). Up until now this would actually generate valid instructions, because `styleMap` goes through the same code path as `classMap` which does support interpolation. At runtime, however, `styleMap` would set invalid styles that look like `<div style="0:w;1:i;2:d;3:t;4:h;5::;7:1;">`. In `ViewEngine` interpolations inside `style` weren't supported either, however there we'd output invalid styles like `<div style="unsafe">`, even if the content was trusted.

PR Close #31211
2019-07-02 11:07:14 -07:00
JoostK eb6281f5b4 fix(ivy): include type parameter for `ngBaseDef` declaration (#31210)
When a class uses Angular decorators such as `@Input`, `@Output` and
friends without an Angular class decorator, they are compiled into a
static `ngBaseDef` field on the class, with the TypeScript declaration
of the class being altered to declare the `ngBaseDef` field to be of type
`ɵɵBaseDef`. This type however requires a generic type parameter that
corresponds with the type of the class, however the compiler did not
provide this type parameter. As a result, compiling a program where such
invalid `ngBaseDef` declarations are present will result in compilation
errors.

This commit fixes the problem by providing the generic type parameter.

Fixes #31160

PR Close #31210
2019-07-02 11:06:46 -07:00
crisbeto 81332150aa perf(ivy): chain host binding instructions (#31296)
Adds chaining to the `property`, `attribute` and `updateSyntheticHostBinding` instructions when they're used in a host binding.

This PR resolves FW-1404.

PR Close #31296
2019-06-28 09:26:20 -07:00
Pete Bacon Darwin 7186f9c016 refactor(ivy): implement a virtual file-system layer in ngtsc + ngcc (#30921)
To improve cross platform support, all file access (and path manipulation)
is now done through a well known interface (`FileSystem`).

For testing a number of `MockFileSystem` implementations are provided.
These provide an in-memory file-system which emulates operating systems
like OS/X, Unix and Windows.

The current file system is always available via the static method,
`FileSystem.getFileSystem()`. This is also used by a number of static
methods on `AbsoluteFsPath` and `PathSegment`, to avoid having to pass
`FileSystem` objects around all the time. The result of this is that one
must be careful to ensure that the file-system has been initialized before
using any of these static methods. To prevent this happening accidentally
the current file system always starts out as an instance of `InvalidFileSystem`,
which will throw an error if any of its methods are called.

You can set the current file-system by calling `FileSystem.setFileSystem()`.
During testing you can call the helper function `initMockFileSystem(os)`
which takes a string name of the OS to emulate, and will also monkey-patch
aspects of the TypeScript library to ensure that TS is also using the
current file-system.

Finally there is the `NgtscCompilerHost` to be used for any TypeScript
compilation, which uses a given file-system.

All tests that interact with the file-system should be tested against each
of the mock file-systems. A series of helpers have been provided to support
such tests:

* `runInEachFileSystem()` - wrap your tests in this helper to run all the
wrapped tests in each of the mock file-systems.
* `addTestFilesToFileSystem()` - use this to add files and their contents
to the mock file system for testing.
* `loadTestFilesFromDisk()` - use this to load a mirror image of files on
disk into the in-memory mock file-system.
* `loadFakeCore()` - use this to load a fake version of `@angular/core`
into the mock file-system.

All ngcc and ngtsc source and tests now use this virtual file-system setup.

PR Close #30921
2019-06-25 16:25:24 -07:00
Olivier Combe ef9cb6a034 perf(ivy): chain multiple `i18nExp` calls (#31258)
Implement function chaining for `i18nExp` to reduce the output size.

FW-1391 #resolve
PR Close #31258
2019-06-25 11:26:29 -07:00
Andrew Kushnir 2aba485118 refactor(ivy): use FatalDiagnosticError to throw more descriptive errors while extracting queries information (#31123)
Prior to this commit, the logic to extract query information from class fields used an instance of regular Error class to throw an error. As a result, some useful information (like reference to a specific field) was missing. Replacing Error class with FatalDiagnosticError one makes the error more verbose that should simplify debugging.

PR Close #31123
2019-06-25 10:23:24 -07:00
Ayaz Hafiz 74f4f5dfab feat(ivy): integrate indexing pipeline with NgtscProgram (#31151)
Add an IndexingContext class to store indexing information and a
transformer module to generate indexing analysis. Integrate the indexing
module with the rest of NgtscProgram and add integration tests.

Closes #30959

PR Close #31151
2019-06-24 18:47:56 -07:00
crisbeto 23c017121e perf(ivy): chain multiple attribute instructions (#31152)
Similarly to what we did in #31078, these changes implement chaining for the `attribute` instruction.

This PR resolves FW-1390.

PR Close #31152
2019-06-24 12:33:49 -07:00
Pete Bacon Darwin 48def92cad fix(ivy): ensure that changes to component resources trigger incremental builds (#30954)
Optimizations to skip compiling source files that had not changed
did not account for the case where only a resource file changes,
such as an external template or style file.

Now we track such dependencies and trigger a recompilation
if any of the previously tracked resources have changed.

This will require a change on the CLI side to provide the list of
resource files that changed to trigger the current compilation by
implementing `CompilerHost.getModifiedResourceFiles()`.

Closes #30947

PR Close #30954
2019-06-21 10:13:46 -07:00
JoostK 75ac724842 fix(ivy): quote dots in directive inputs and outputs (#31146)
A temporary check is in place to determine whether a key in an object
literal needs to be quoted during emit. Previously, only the presence of
a dash caused a key to become quoted, this however is not sufficient for
@angular/flex-layout to compile properly as it has dots in its inputs.

This commit extends the check to also use quotes when a dot is present.

Fixes #30114

PR Close #31146
2019-06-19 17:57:13 -07:00
crisbeto 4b16d98955 perf(ivy): chain multiple property instructions (#31078)
Currently each property binding generates an instruction like this:

```
property('prop1', ctx.value1);
property('prop2', ctx.value2);
```

The problem is that we're repeating the call to `property` for each of the properties. Since the `property` instruction returns itself, we can chain all of the calls which is more compact and it looks like this:

```
property('prop1', ctx.value1)('prop2', ctx.value2);
```

These changes implement the chaining behavior for regular property bindings and for synthetic ones, however interpolated ones are still handled like before, because they use a separate instruction.

This PR resolves FW-1389.

PR Close #31078
2019-06-19 15:42:37 -07:00
Alex Eagle db08fd2607 build: enable shard_count for some jasmine tests that have many specs (#31009)
This partitions the spects across multiple processes so they run in parallel.

PR Close #31009
2019-06-18 12:11:30 -07:00
Olivier Combe 87168acf39 refactor(ivy): move `bind` instruction into `i18nExp` (#31089)
i18nExp now uses `bind` internally rather than having the compiler generate it in order to bring it in line with other functions like `textBinding` & `property`.

FW-1384 #resolve
PR Close #31089
2019-06-18 09:49:27 -07:00
Paul Gschwendtner 052ef654d2 test(compiler-cli): fix failing ivy template compliance test (#30983)
Commit 58be2ff884 has been created
before c0386757b1 landed, and therefore
the newly created compliance test was using an outdated expectation.

This commit updates the compliance test to no longer contain
the outdated expectation.

PR Close #30983
2019-06-11 15:17:01 -07:00
Paul Gschwendtner 58be2ff884 fix(ivy): unable to bind to implicit receiver in embedded views (#30897)
To provide some context: The implicit receiver is part of the
parsed Angular template AST. Any property reads in bindings,
interpolations etc. read from a given object (usually the component
instance). In that case there is an _implicit_ receiver which can also
be specified explicitly by just using `this`.

e.g.

```html
<ng-template>{{this.myProperty}}</ng-template>
```

This works as expected in Ivy and View Engine, but breaks in case the
implicit receiver is not used for property reads. For example:

```html
<my-dir [myFn]="greetFn.bind(this)"></my-dir>
```

In that case the `this` will not be properly translated into the generated
template function code because the Ivy compiler currently always treats
the `ctx` variable as the implicit receiver. This is **not correct** and breaks
compatibility with View Engine. Rather we need to ensure that we retrieve
the root context for the standalone implicit receiver similar to how it works
for property reads (as seen in the example above with `this.myProperty`)

Note that this requires some small changes to the `expression_converter`
because we only want to generate the `eenextContent()` instruction if the
implicit receiver is _actually_ used/needed. View Engine determines if that is the case by recursively walking through the converted output AST and
checking for usages of the `o.variable('_co')` variable ([see here][ve_check]). This would work too for Ivy, but involves most likely more code duplication
since templates are isolated in different functions and it another pass
through the output AST for every template expression.

[ve_check]: 0d6c9d36a1/packages/compiler/src/view_compiler/view_compiler.ts (L206-L208)

Resolves FW-1366.

PR Close #30897
2019-06-11 14:29:42 -07:00
Alex Eagle ef0b2cc74d build: convert entry_point to label (#30627)
PR Close #30627
2019-06-11 00:03:11 +00:00
Ben Lesh c0386757b1 refactor(ivy): inherently call ɵɵselect(0) (#30830)
- Refactors compiler to stop generating `ɵɵselect(0)` instructions
- Alters template execution to always call the equivalent of `ɵɵselect(0)` before running a template in update mode
- Updates tests to not check for or call `ɵɵselect(0)`.

The goal here is to reduce the size of generated templates

PR Close #30830
2019-06-07 08:48:31 -07:00
crisbeto b51d8dd438 fix(ivy): error for empty bindings on ng-template (#30829)
Fixes Ivy throwing an error if it runs into an empty property binding on an `ng-template` (e.g. `<ng-template [something]=""></ng-template>`) by not generating an update instruction for it.

Fixes #30801.
This PR resoves FW-1356.

PR Close #30829
2019-06-05 21:26:13 -07:00
Ben Lesh d1df0a94d4 refactor(ivy): remove ɵɵelementProperty instruction (#30645)
- Removes ɵɵelementProperty instruction
- Updates tests that were using it
- NOTE: There is one test under `render3/integration_spec.ts` that is commented out, and needs to be reviewed. Basically, I could not find a good why to test what it was doing, because it was doing things that I am not sure we could generate in an acceptance test.

PR Close #30645
2019-06-05 09:04:43 -07:00
Ben Lesh b4e68025f8 refactor(ivy): add ɵɵupdateSyntheticHostBinding command (#30670)
- Refactors `ɵɵcomponentHostSyntheticProperty` into `ɵɵupdateSyntheticHostBinding`, to better align it with other new instructions.

PR Close #30670
2019-06-03 09:00:13 -07:00
Paul Gschwendtner aca339e864 fix(ivy): unable to project into multiple slots with default selector (#30561)
With View engine it was possible to declare multiple projection
definitions and to programmatically project nodes into the slots.

e.g.

```html
<ng-content></ng-content>
<ng-content></ng-content>
```

Using `ViewContainerRef#createComponent` allowed projecting
nodes into one of the projection defs (through index)

This no longer works with Ivy as the `projectionDef` instruction only
retrieves a list of selectors instead of also retrieving entries for
reserved projection slots which appear when using the default
selector multiple times (as seen above).

In order to fix this issue, the Ivy compiler now passes all
projection slots to the `projectionDef` instruction. Meaning that
there can be multiple projection slots with the same wildcard
selector. This allows multi-slot projection as seen in the
example above, and it also allows us to match the multi-slot node
projection order from View Engine (to avoid breaking changes).

It basically ensures that Ivy fully matches the View Engine behavior
except of a very small edge case that has already been discussed
in FW-886 (with the conclusion of working as intended).

Read more here: https://hackmd.io/s/Sy2kQlgTE

PR Close #30561
2019-05-31 09:52:32 -07:00
Olivier Combe 53c6b78c51 feat(ivy): add `AttributeMarker.I18n` for i18n attributes (#30402)
`i18nAttributes` instructions always occur after the element instruction. This means that we need to treat `i18n-` attributes differently.
By defining a specific `AttributeMarker` we can ensure that we won't trigger directive inputs with untranslated attribute values.

FW-1332 #resolve
PR Close #30402
2019-05-30 16:39:24 -04:00
Olivier Combe 91699259b2 fix(ivy): trigger directive inputs with i18n translations (#30402)
Changed runtime i18n to define attributes with bindings, or matching directive inputs/outputs as element properties as we are supposed to do in Angular.
This PR fixes the issue where directive inputs wouldn't be trigged.

FW-1315 #resolve
PR Close #30402
2019-05-30 16:39:24 -04:00
Alex Rickabaugh b61784948a fix(ivy): template inputs/outputs should not be bound in template scope (#30669)
The R3TargetBinder "binds" an Angular template AST, computing semantic
information regarding the template and making it accessible.

One of the binding passes previously had a bug, where for the following
template:

<div *ngIf="foo as foo"></div>

which desugars to:

<ng-template ngIf [ngIf]="foo" let-foo="ngIf">
  <div></div>
</ng-template>

would have the `[ngIf]` binding processed twice - in both the scope which
contains the `<ng-template>` and the scope inside the template. The bug
arises because during the latter, `foo` is a variable defined by `let-foo`,
and so the R3TargetBinder would incorrectly learn that `foo` inside `[ngIf]`
maps to that variable.

This commit fixes the bug by only processing inputs, outputs, and
templateAttrs from `Template`s in the outer scope.

PR Close #30669
2019-05-30 15:17:07 -04:00
Andrew Kushnir 7a0f8ac36c fix(ivy): generate explicit type annotation for NgModuleFactory calls in ngfactories (#30708)
Prior to this commit there were no explicit types setup for NgModuleFactory calls in ngfactories, so TypeScript inferred the type based on a given call. In some cases (when generic types were used for Components/Directives) that turned out to be problematic, so we add explicit typing for NgModuleFactory calls.

PR Close #30708
2019-05-30 15:09:56 -04:00
Matias Niemelä 82682bb93f refactor(ivy): enable sanitization support for the new styling algorithm (#30667)
This patch is one of the final patches to refactor the styling algorithm
to be more efficient, performant and less complex.

This patch enables sanitization support for map-based and prop-based
style bindings.

PR Close #30667
2019-05-30 01:03:39 -04:00
Ben Lesh dd0815095f feat(ivy): add ɵɵtextInterpolateX instructions (#30011)
- `ɵɵtextBinding(..., ɵɵinterpolationX())` instructions will now just be `ɵɵtextInterpolate(...)` instructions

PR Close #30011
2019-05-29 12:38:58 -04:00
Kara Erickson 214ae0ea4c test(compiler): update examples and compiler tests (#30626)
PR Close #30626
2019-05-23 10:31:32 -07:00
Ben Lesh 2cdbe9b2ef refactor(ivy): ensure new attribute instructons are available in JIT (#30503)
PR Close #30503
2019-05-22 16:30:29 -07:00
Ben Lesh 988afad2af refactor(ivy): generate new ɵɵattribute instruction in host bindings (#30503)
PR Close #30503
2019-05-22 16:30:29 -07:00
Ben Lesh 7555a46e23 refactor(ivy): add new attribute interpolation instructions (#30503)
PR Close #30503
2019-05-22 16:30:28 -07:00
Ben Lesh 38d7acee4d refactor(ivy): add new ɵɵattribute instruction (#30503)
- adds the ɵɵattribute instruction
- adds compilation handling for Δattribute instruction
- updates tests

PR Close #30503
2019-05-22 16:30:28 -07:00
Andrew Kushnir 02523debe5 fix(ivy): handle pipes in i18n attributes properly (#30573)
Prior to this change we processed binding expression (including bindings with pipes) in i18n attributes before we generate update instruction. As a result, slot offsets for pipeBind instructions were calculated incorrectly. Now we perform binding expression processing when we generate "update block" instructions, so offsets are calculated correctly.

PR Close #30573
2019-05-22 16:23:18 -07:00
Paul Gschwendtner 70fd4300f4 test(compiler-cli): compliance tests not always reporting test failure (#30597)
Currently the `@angular/compiler-cli` compliance tests sometimes do
not throw an exception if the expected output does not match the
generated JavaScript output. This can happen for the following cases:

1. Expected code includes character that is not part of known alphabet
    (e.g. `Δ` is still used in a new compliance test after rebasing a PR)
2. Expected code asserts that a string literal matches a string with
    escaped quotes. e.g. expects `const $var$ = "\"quoted\"";`)

PR Close #30597
2019-05-22 16:22:52 -07:00
janith c79bffaacb docs: remove gender prefixes from examples (#29972)
PR Close #29972
2019-05-20 16:42:59 -07:00
Ben Lesh d7eaae6f22 refactor(ivy): Move instructions back to ɵɵ (#30546)
There is an encoding issue with using delta `Δ`, where the browser will attempt to detect the file encoding if the character set is not explicitly declared on a `<script/>` tag, and Chrome will find the `Δ` character and decide it is window-1252 encoding, which misinterprets the `Δ` character to be some other character that is not a valid JS identifier character

So back to the frog eyes we go.

```
    __
   /ɵɵ\
  ( -- ) - I am ineffable. I am forever.
 _/    \_
/  \  /  \
==  ==  ==
```

PR Close #30546
2019-05-20 16:37:47 -07:00
Pete Bacon Darwin eda09e69ea fix(ivy): ngtsc - do not wrap arguments unnecessarily (#30349)
Previously we defensively wrapped expressions in case they ran afoul of
precedence rules. For example, it would be easy to create the TS AST structure
Call(Ternary(a, b, c)), but might result in printed code of:

```
a ? b : c()
```

Whereas the actual structure we meant to generate is:

```
(a ? b : c)()
```

However the TypeScript renderer appears to be clever enough to provide
parenthesis as necessary.

This commit removes these defensive paraenthesis in the cases of binary
and ternary operations.

FW-1273

PR Close #30349
2019-05-17 09:55:46 -07:00
JoostK e9ead2bc09 feat(ivy): more accurate type narrowing for `ngIf` directive (#30248)
A structural directive can specify a template guard for an input, such that
the type of that input's binding can be narrowed based on the guard's return
type. Previously, such template guards could only be methods, of which an
invocation would be inserted into the type-check block (TCB). For `NgIf`,
the template guard narrowed the type of its expression to be `NonNullable`
using the following declaration:

```typescript
export declare class NgIf {
  static ngTemplateGuard_ngIf<E>(dir: NgIf, expr: E): expr is NonNullable<E>
}
```

This works fine for usages such as `*ngIf="person"` but starts to introduce
false-positives when e.g. an explicit non-null check like
`*ngIf="person !== null"` is used, as the method invocation in the TCB
would not have the desired effect of narrowing `person` to become
non-nullable:

```typescript
if (NgIf.ngTemplateGuard_ngIf(directive, ctx.person !== null)) {
  // Usages of `ctx.person` within this block would
  // not have been narrowed to be non-nullable.
}
```

This commit introduces a new strategy for template guards to allow for the
binding expression itself to be used as template guard in the TCB. Now,
the TCB generated for `*ngIf="person !== null"` would look as follows:

```typescript
if (ctx.person !== null) {
  // This time `ctx.person` will successfully have
  // been narrowed to be non-nullable.
}
```

This strategy can be activated by declaring the template guard as a
property declaration with `'binding'` as literal return type.

See #30235 for an example where this led to a false positive.

PR Close #30248
2019-05-16 09:48:40 -07:00
Ben Lesh cf86ed7b29 refactor(ivy): migrate ɵɵ prefix back to Δ (#30362)
Now that issues are resolved with Closure compiler, we can move back to our desired prefix of `Δ`.

PR Close #30362
2019-05-14 16:52:15 -07:00
Alan c7f9a95a3f test: fix tests in windows ci (#30451)
PR Close #30451
2019-05-14 10:35:55 -07:00
Kristiyan Kostadinov f74373f2dd fix(ivy): align NgModule registration timing with ViewEngine (#30244)
Currently in Ivy `NgModule` registration happens when the class is declared, however this is inconsistent with ViewEngine and requires extra generated code. These changes remove the generated code for `registerModuleFactory`, pass the id through to the `ngModuleDef` and do the module registration inside `NgModuleFactory.create`.

This PR resolves FW-1285.

PR Close #30244
2019-05-13 11:13:25 -07:00
Alan Agius 2f35dbfd3b test: fix ngtsc tests in windows (#30146)
This commit fixes the following test target in windows

```
//packages/compiler-cli/test/ngtsc:ngtsc
```

PR Close #30146
2019-05-13 11:06:12 -07:00
Alan Agius 31df5139c5 test: fix several Bazel compiler tests in windows (#30146)
```
//packages/compiler-cli/test:ngc
//packages/compiler/test:test
```

This also address `node_modules` to the ignored paths for ngc compiler as otherwise the `ready` is never fired

Partially addresses #29785

PR Close #30146
2019-05-13 11:06:12 -07:00
Pete Bacon Darwin fbff03b476 feat(ivy): skip analysis of unchanged components (#30238)
Now that the dependent files and compilation scopes are being tracked in
the incremental state, we can skip analysing and emitting source files if
none of their dependent files have changed since the last compile.

The computation of what files (and their dependencies) are unchanged is
computed during reconciliation.

This commit also removes the previous emission skipping logic, since this
approach covers those cases already.

PR Close #30238
2019-05-10 12:10:40 -07:00
Matias Niemelä d8665e639b refactor(ivy): drop `element` prefixes for all styling-related instructions (#30318)
This is the final patch to migrate the Angular styling code to have a
smaller instruction set in preparation for the runtime refactor. All
styling-related instructions now work both in template and hostBindings
functions and do not use `element` as a prefix for their names:

BEFORE:
  elementStyling()
  elementStyleProp()
  elementClassProp()
  elementStyleMap()
  elementClassMap()
  elementStylingApply()

AFTER:
  styling()
  styleProp()
  classProp()
  styleMap()
  classMap()
  stylingApply()

PR Close #30318
2019-05-08 15:33:39 -07:00
Matias Niemelä c016e2c4ec refactor(ivy): migrate all host-specific styling instructions to element-level styling instructions (#30336)
This patch removes all host-specific styling instructions in favor of
using element-level instructions instead. Because of the previous
patches that made sure `select(n)` worked between styling calls, all
host level instructions are not needed anymore. This patch changes each
of those instruction calls to use any of the `elementStyling*`,
`elementStyle*` and `elementClass*` styling instructions instead.

PR Close #30336
2019-05-08 14:54:44 -07:00
Matias Niemelä 7c8a62d64d refactor(ivy): remove elementIndex param from all element-level styling instructions (#30313)
This patch is one commit of many patches that will unify all styling instructions
across both template-level bindings and host-level bindings. This patch in particular
removes the `elementIndex` param because it is already set prior to each styling
instruction via the `select(n)` instruction.

PR Close #30313
2019-05-08 09:18:19 -07:00
Matias Niemelä 345a3cd9aa fix(ivy): ensure `select(n)` instructions are always generated around style/class bindings (#30311)
Prior to this patch, the `select(n)` instruction would only be generated
when property bindings are encountered which meant that styling-related
bindings were skipped. This patch ensures that all styling-related bindings
(i.e. class and style bindings) are always prepended with a `select()`
instruction prior to being generated in AOT.

PR Close #30311
2019-05-07 14:56:17 -07:00
Matias Niemelä be8fbac942 refactor(ivy): break apart stylingMap into styleMap and classMap instructions (#30293)
This patch breaks up the existing `elementStylingMap` into
`elementClassMap` and `elementStyleMap` instructions. It also breaks
apart `hostStlyingMap` into `hostClassMap` and `hostStyleMap`
instructions. This change allows for better tree-shaking and reduces
the complexity of the styling algorithm code for `[style]` and `[class]`
bindings.

PR Close #30293
2019-05-07 11:06:04 -07:00
Kristiyan Kostadinov 68ff2cc323 fix(ivy): host bindings and listeners not being inherited from undecorated classes (#30158)
Fixes `HostBinding` and `HostListener` declarations not being inherited from base classes that don't have an Angular decorator.

This PR resolves FW-1275.

PR Close #30158
2019-04-29 13:35:14 -07:00
Alan Agius e4b81a6957 test: fix language service tests in windows (#30113)
This PR parially addresses #29785 and fixes ` //packages/language-service/test:test`

PR Close #30113
2019-04-26 16:34:22 -07:00
Ben Lesh f3ce8eeb83 fix(ivy): property bindings use correct indices (#30129)
- Extracts and documents code that will be common to interpolation instructions
- Ensures that binding indices are updated at the proper time during compilation
- Adds additional tests

Related #30011

PR Close #30129
2019-04-26 11:09:51 -07:00
Alex Rickabaugh 79141f4424 fix(ivy): generate default 'any' types for type ctor generic params (#30094)
ngtsc generates type constructors which infer the type of a directive based
on its inputs. Previously, a bug existed where this inference would fail in
the case of 'any' input values. For example, the inference of NgForOf fails
when an 'any' is provided, as it causes TypeScript to attempt to solve:

T[] = any

In this case, T gets inferred as {}, the empty object type, which is not
desirable.

The fix is to assign generic types in type constructors a default type of
'any', which TypeScript uses instead of {} when inference fails.

PR Close #30094
2019-04-24 17:10:21 -07:00
Alex Rickabaugh 3938563565 fix(ivy): don't reuse a ts.Program more than once in ngtsc (#30090)
ngtsc previously could attempt to reuse the main ts.Program twice. This
occurred when template type-checking was enabled and then an incremental
build was performed. This breaks a TypeScript invariant - ts.Programs can
only be reused once.

The creation of the template type-checking program reuses the main program,
rendering it moot. Then, on the next incremental build the main program
would be subject to reuse again, which would crash inside TypeScript.

This commit fixes the issue by reusing the template type-checking program
from the previous run on the next incremental build. Since under normal
circumstances the files in the type-checking program aren't changed, this
should be just as fast.

Testing strategy: a test is added in the incremental_spec which validates
that program reuse with type-checking turned on does not crash the compiler.

Fixes #30079

PR Close #30090
2019-04-24 11:41:21 -07:00
Kristiyan Kostadinov c7f1b0a97f fix(ivy): queries not being inherited from undecorated classes (#30015)
Fixes view and content queries not being inherited in Ivy, if the base class hasn't been annotated with an Angular decorator (e.g. `Component` or `Directive`).

Also reworks the way the `ngBaseDef` is created so that it is added at the same point as the queries, rather than inside of the `Input` and `Output` decorators.

This PR partially resolves FW-1275. Support for host bindings will be added in a follow-up, because this PR is somewhat large as it is.

PR Close #30015
2019-04-24 10:38:44 -07:00
Andrew Kushnir aaf8145c48 fix(ivy): support module.id as @NgModule's "id" field value (#30040)
Prior to this commit, the check that verifies correct "id" field type was too strict and didn't allow `module.id` as @NgModule's "id" field value. This change adds a special handling for `module.id` and uses it as id of @NgModule if specified.

PR Close #30040
2019-04-23 14:50:58 -07:00
Alex Rickabaugh 8e73f9b0aa feat(compiler-cli): lower some exported expressions (#30038)
The compiler uses metadata to represent what it statically knows about
various expressions in a program. Occasionally, expressions in the program
for which metadata is extracted may contain sub-expressions which are not
representable in metadata. One such construct is an arrow function.

The compiler does not always need to understand such expressions completely.
For example, for a provider defined with `useValue`, the compiler does not
need to understand the value at all, only the outer provider definition. In
this case, the compiler employs a technique known as "expression lowering",
where it rewrites the provider expression into one that can be represented
in metadata. Chiefly, this involves extracting out the dynamic part (the
`useValue` expression) into an exported constant.

Lowering is applied through a heuristic, which considers the containing
statement as well as the field name of the expression.

Previously, this heuristic was not completely accurate in the case of
route definitions and the `loadChildren` field, which is lowered. If the
route definition using `loadChildren` existed inside a decorator invocation,
lowering was performed correctly. However, if it existed inside a standalone
variable declaration with an export keyword, the heuristic would conclude
that lowering was unnecessary. For ordinary providers this is true; however
the compiler attempts to fully understand the ROUTES token and thus even if
an array of routes is declared in an exported variable, any `loadChildren`
expressions within still need to be lowered.

This commit enables lowering of already exported variables under a limited
set of conditions (where the initializer expression is of a specific form).
This should enable the use of `loadChildren` in route definitions.

PR Close #30038
2019-04-23 08:30:58 -07:00
Ben Lesh 0f9230d018 feat(ivy): generate ɵɵproperty in host bindings (#30009)
PR Close #30009
2019-04-22 17:30:17 -07:00
JoostK 19dfadb717 fix(ivy): include context name for template functions for `ng-content` (#30025)
Previously, a template's context name would only be included in an embedded
template function if the element that the template was declared on has a
tag name. This is generally true for elements, except for `ng-content`
that does not have a tag name. By omitting the context name the compiler
could introduce duplicate template function names, which would fail at runtime.

This commit fixes the behavior by always including the context name in the
template function's name, regardless of tag name.

Resolves FW-1272

PR Close #30025
2019-04-22 17:28:36 -07:00
Ben Lesh 0bcb2320ba feat(ivy): generate ɵɵpropertyInterpolateX instructions (#30008)
- Compiler now generates `ɵɵpropertyInterpolateX` instructions.

PR Close #30008
2019-04-22 17:10:36 -07:00
Kristiyan Kostadinov 63523f7964 fix(ivy): avoid generating instructions for empty style and class bindings (#30024)
Fixes Ivy throwing an error because it tries to generate styling instructions for empty `style` and `class` bindings.

This PR resolves FW-1274.

PR Close #30024
2019-04-22 11:16:58 -07:00
Ben Lesh 10217bb3bc feat(ivy): generate ɵɵproperty instructions (#29946)
PR Close #29946
2019-04-19 16:07:52 -07:00
Alex Rickabaugh d9ce8a4ab5 feat(ivy): introduce a flag to control template type-checking for Ivy (#29698)
Template type-checking is enabled by default in the View Engine compiler.
The feature in Ivy is not quite ready for this yet, so this flag will
temporarily control whether templates are type-checked in ngtsc.

The goal is to remove this flag after rolling out template type-checking in
google3 in Ivy mode, and making sure the feature is as compatible with the
View Engine implementation as possible.

Initially, the default value of the flag will leave checking disabled.

PR Close #29698
2019-04-19 11:15:25 -07:00
Alex Rickabaugh 5268ae61a0 feat(ivy): support for template type-checking pipe bindings (#29698)
This commit adds support for template type-checking a pipe binding which
previously was not handled by the type-checking engine. In compatibility
mode, the arguments to transform() are not checked and the type returned
by a pipe is 'any'. In full type-checking mode, the transform() method's
type signature is used to check the pipe usage and infer the return type
of the pipe.

Testing strategy: TCB tests included.

PR Close #29698
2019-04-19 11:15:25 -07:00
Alex Rickabaugh 98f86de8da perf(ivy): template type-check the entire program in 1 file if possible (#29698)
The template type-checking engine previously would assemble a type-checking
program by inserting Type Check Blocks (TCBs) into existing user files. This
approach proved expensive, as TypeScript has to re-parse and re-type-check
those files when processing the type-checking program.

Instead, a far more performant approach is to augment the program with a
single type-checking file, into which all TCBs are generated. Additionally,
type constructors are also inlined into this file.

This is not always possible - both TCBs and type constructors can sometimes
require inlining into user code, particularly if bound generic type
parameters are present, so the approach taken is actually a hybrid. These
operations are inlined if necessary, but are otherwise generated in a single
file.

It is critically important that the original program also include an empty
version of the type-checking file, otherwise the shape of the two programs
will be different and TypeScript will throw away all the old program
information. This leads to a painfully slow type checking pass, on the same
order as the original program creation. A shim to generate this file in the
original program is therefore added.

Testing strategy: this commit is largely a refactor with no externally
observable behavioral differences, and thus no tests are needed.

PR Close #29698
2019-04-19 11:15:25 -07:00
Alex Rickabaugh cd1277cfb7 fix(ivy): include directive base class metadata when generating TCBs (#29698)
Previously the template type-checking code only considered the metadata of
directive classes actually referenced in the template. If those directives
had base classes, any inputs/outputs/etc of the base classes were not
tracked when generating the TCB. This resulted in bindings to those inputs
being incorrectly attributed to the host component or element.

This commit uses the new metadata package to follow directive inheritance
chains and use the full metadata for a directive for TCB generation.

Testing strategy: Template type-checking tests included.

PR Close #29698
2019-04-19 11:15:25 -07:00
Alex Rickabaugh 0df719a461 feat(ivy): register NgModules with ids when compiled with AOT (#29980)
This commit adds registration of AOT compiled NgModules that have 'id'
properties set in their metadata. Such modules have a call to
registerNgModuleType() emitted as part of compilation.

The JIT behavior of this code is already in place.

This is required for module loading systems (such as g3) which rely on
getModuleFactory().

PR Close #29980
2019-04-19 11:12:21 -07:00
Alex Rickabaugh 4229b41057 test(ivy): replace ɵ with escape code (#29980)
PR Close #29980
2019-04-19 11:12:20 -07:00
JoostK 83291f01b0 fix(ivy): let ngtsc unwrap expressions when resolving `forwardRef` (#29886)
Previously, ngtsc would fail to resolve `forwardRef` calls if they
contained additional parenthesis or casts. This commit changes the
behavior to first unwrap the AST nodes to see past such insignificant
nodes, resolving the issue.

Fixes #29639

PR Close #29886
2019-04-17 12:52:34 -07:00
Andrew Kushnir 6c018001d3 fix(ivy): keep i18n-annotated attributes in element attribute list (#29856)
Prior to this change, element attributes annotated with i18n- prefix were removed from element attribute list and processed separately by i18n-specific logic. This behavior is causing issues with directive matching, since attributes are not present in the list of attrs for matching purposes. This commit updates i18n logic to retain attributes in the main attribute list, thus allowing directive matching logic to work correctly.

PR Close #29856
2019-04-12 16:57:42 -07:00
Alex Rickabaugh b0578061ce refactor(ivy): use ɵɵ instead of Δ for now (#29850)
The `Δ` caused issue with other infrastructure, and we are temporarily
changing it to `ɵɵ`.

This commit also patches ts_api_guardian_test and AIO to understand `ɵɵ`.

PR Close #29850
2019-04-11 16:27:56 -07:00
Olivier Combe 91c7b451d5 feat(ivy): support i18n without closure (#28689)
So far using runtime i18n with ivy meant that you needed to use Closure and `goog.getMsg` (or a polyfill). This PR changes the compiler to output both closure & non-closure code, while the unused option will be tree-shaken by minifiers.
This means that if you use the Angular CLI with ivy and load a translations file, you can use i18n and the application will not throw at runtime.
For now it will not translate your application, but at least you can try ivy without having to remove all of your i18n code and configuration.
PR Close #28689
2019-04-11 08:28:45 -07:00
Kristiyan Kostadinov def73a6728 perf(ivy): avoid storing raw selectors in projectionDef (#29578)
Currently in Ivy we pass both the raw and parsed selectors to the projectionDef instruction, because the parsed selectors are used to match most nodes, whereas the raw ones are used to match against nodes with the ngProjectAs attribute. The raw selectors add a fair bit of code that won't be used in most cases, because ngProjectAs is somewhat rare.

These changes rework the compiler not to output the raw selectors in the projectionDef, but to parse the selector in ngProjectAs and to store it on the TAttributes. The logic for matching has also been changed so that it matches the pre-parsed ngProjectAs selector against the list of projection selectors.

PR Close #29578
2019-04-11 08:09:09 -07:00
Ben Lesh 138ca5a246 refactor(ivy): prefix all generated instructions (#29692)
- Updates all instructions to be prefixed with the Greek delta symbol

PR Close #29692
2019-04-10 12:11:40 -07:00
JoostK 60afe88bcc feat(ivy): do not emit empty providers/imports for defineInjector (#29598)
The defineInjector function specifies its providers and imports array to
be optional, so if no providers/imports are present these keys may be
omitted. This commit updates the compiler to only generate the keys when
necessary.

PR Close #29598
2019-04-02 16:03:54 -07:00
JoostK 2d372f48db feat(ivy): exclude declarations from injector imports (#29598)
Prior to this change, a module's imports and exports would be used verbatim
as an injectors' imports. This is detrimental for tree-shaking, as a
module's exports could reference declarations that would then prevent such
declarations from being eligible for tree-shaking.

Since an injector actually only needs NgModule references as its imports,
we may safely filter out any declarations from the list of module exports.
This makes them eligible for tree-shaking once again.

PR Close #29598
2019-04-02 16:03:54 -07:00
JoostK 45c6360e5a feat(ivy): emit module scope metadata using pure function call (#29598)
Prior to this change, all module metadata would be included in the
`defineNgModule` call that is set as the `ngModuleDef` field of module
types. Part of the metadata is scope information like declarations,
imports and exports that is used for computing the transitive module
scope in JIT environments, preventing those references from being
tree-shaken for production builds.

This change moves the metadata for scope computations to a pure function
call that patches the scope references onto the module type. Because the
function is marked pure, it may be tree-shaken out during production builds
such that references to declarations and exports are dropped, which in turn
allows for tree-shaken any declaration that is not otherwise referenced.

Fixes #28077, FW-1035

PR Close #29598
2019-04-02 16:03:54 -07:00
Pete Bacon Darwin 63013f1aeb fix(ivy): support finding the import of namespace-imported identifiers (#27675)
Currently there is no support in ngtsc for imports of the form:

```
import * as core from `@angular/core`

export function forRoot(): core.ModuleWithProviders;
```

This commit modifies the `ReflectionHost.getImportOfIdentifier(id)`
method, so that it supports this kind of return type.

PR Close #27675
2019-04-01 16:06:14 -07:00
Alex Rickabaugh 7041e61562 perf(ivy): basic incremental compilation for ngtsc (#29380)
This commit introduces a mechanism for incremental compilation to the ngtsc
compiler.

Previously, incremental information was used in the construction of the
ts.Program for subsequent compilations, but was not used in ngtsc itself.

This commit adds an IncrementalState class, which tracks state between ngtsc
compilations. Currently, this supports skipping the TypeScript emit step
when the compiler can prove the contents of emit have not changed.

This is implemented for @Injectables as well as for files which don't
contain any Angular decorated types. These are the only files which can be
proven to be safe today.

See ngtsc/incremental/README.md for more details.

PR Close #29380
2019-04-01 15:13:56 -07:00
Alex Rickabaugh 7316212c1e test(ivy): support multiple compilations in the ngtsc test env (#29380)
This commit adds support for compiling the same program repeatedly in a way
that's similar to how incremental builds work in a tool such as the CLI.

* support is added to the compiler entrypoint for reuse of the Program
  object between compilations. This is the basis of the compiler's
  incremental compilation model.

* support is added to wrap the CompilerHost the compiler creates and cache
  ts.SourceFiles in between compilations.

* support is added to track when files are emitted, for assertion purposes.

* an 'exclude' section is added to the base tsconfig to prevent .d.ts
  outputs from the first compilation from becoming inputs to any subsequent
  compilations.

PR Close #29380
2019-04-01 15:13:56 -07:00
Alex Rickabaugh 3e569767e3 fix(ivy): avoid remote scoping if it's not actually required (#29404)
Currently, ngtsc decides to use remote scoping if the compilation of a
component may create a cyclic import. This happens if there are two
components in a scope (say, A and B) and A directly uses B. During
compilation of B ngtsc will then note that if B were to use A, a cycle would
be generated, and so it will opt to use remote scoping for B.

ngtsc already uses the R3TargetBinder to correctly track the imports that
are actually required, for future cycle tracking. This commit expands that
usage to not trigger remote scoping unless B actually does consume A in its
template.

PR Close #29404
2019-04-01 15:13:35 -07:00
Paul Gschwendtner 1e5a818719 fix(ivy): ngtsc is unable to detect flat module entry-point on windows (#29453)
Currently when building an Angular project with `ngtsc`
and `flatModuleOutFile` enabled, the Ngtsc build will fail
if there are multiple source files as root file names.

Ngtsc and NGC currently determine the entry-point for multiple
root file names by looking for files ending with `/index.ts`.

This functionality is technically deprecated, but still supported
and currently breaks on Windows as the root file names are not
guaranteed to be normalized POSIX-like paths.

In order to make this logic more reliable in the future, this commit
also switches the shim generators and entry-point logic to the branded
path types. This ensures that we don't break this in the future.

PR Close #29453
2019-03-27 13:46:37 -07:00
Ben Lesh 96b800c8bc feat(ivy): select instruction now generated in front of all relevant instructions (#29546)
PR Close #29546
2019-03-27 12:37:03 -07:00
Ben Lesh a2f8f5595f refactor(ivy): rename flushHooksUpTo to select (#29527)
PR Close #29527
2019-03-27 09:35:55 -07:00
Marc Laval c412374854 fix(ivy): DebugNode.query should query nodes in the logical tree (#29480)
PR Close #29480
2019-03-26 12:48:37 -07:00
Greg Magolan 861d6f1523 build(bazel): back out of @bazel/jasmine 0.27.7 with shard count (#29444)
PR Close #29444
2019-03-21 09:59:13 -07:00
JoostK 9eb8274991 fix(ivy): emit generic type arguments in Pipe metadata (#29403)
Previously, only directives and services with generic type parameters
would emit `any` as generic type when emitting Ivy metadata into .d.ts
files. Pipes can also have generic type parameters but did not emit
`any` for all type parameters, resulting in the omission of those
parameters which causes compilation errors.

This commit adds support for pipes with generic type arguments and emits
`any` as generic type in the Ivy metadata.

Fixes #29400

PR Close #29403
2019-03-20 16:11:22 -04:00
Alan Agius 68a9fe817c test: remove symlink workaround (#29426)
This is no longer required. And is causing some errors to some of our engineers

PR Close #29426
2019-03-20 15:13:09 -04:00
Pete Bacon Darwin a770aa231d refactor(ivy): move ngcc into a higher level folder (#29092)
PR Close #29092
2019-03-20 14:45:54 -04:00
Greg Magolan 7c4afb0da7 build: enable shard_count for some jasmine tests that have many specs (#29375)
PR Close #29375
2019-03-19 23:39:36 -04:00
Matias Niemelä 8714daf276 fix(ivy): introduce host-specific styling instructions (#29292)
This patch is the first of a few patches which separates the
styling logic between template bindings (e.g. <div [style])
from host bindings (e.g. @HostBinding('style')). This patch
in particular introduces a series of host-specific styling
instructions and changes the existing set of template styling
instructions not to accept directives. The underyling code (which
communicates with the styling algorithm) still works as it did
before.

This PR also separates the styling instruction code into a separate
file and moves over all other instructions into an dedicated
instructions directory.

PR Close #29292
2019-03-19 16:33:39 -04:00
Alex Eagle 86aba1e8f3 build: add moduleName to ngFactory sourcefiles (#29385)
PR Close #29385
2019-03-19 01:10:49 -04:00
Alex Rickabaugh ae4a86e3b5 fix(ivy): don't track identifiers of ffr-resolved references (#29387)
This fix is for a bug in the ngtsc PartialEvaluator, which statically
evaluates expressions.

Sometimes, evaluating a reference requires resolving a function which is
declared in another module, and thus no function body is available. To
support this case, the PartialEvaluator has the concept of a foreign
function resolver.

This allows the interpretation of expressions like:

const router = RouterModule.forRoot([]);

even though the definition of the 'forRoot' function has no body. In
ngtsc today, this will be resolved to a Reference to RouterModule itself,
via the ModuleWithProviders foreign function resolver.

However, the PartialEvaluator also associates any Identifiers in the path
of this resolution with the Reference. This is done so that if the user
writes

const x = imported.y;

'x' can be generated as a local identifier instead of adding an import for
'y'.

This was at the heart of a bug. In the above case with 'router', the
PartialEvaluator added the identifier 'router' to the Reference generated
(through FFR) to RouterModule.

This is not correct. References that result from FFR expressions may not
have the same value at runtime as they do at compile time (indeed, this is
not the case for ModuleWithProviders). The Reference generated via FFR is
"synthetic" in the sense that it's constructed based on a useful
interpretation of the code, not an accurate representation of the runtime
value. Therefore, it may not be legal to refer to the Reference via the
'router' identifier.

This commit adds the ability to mark such a Reference as 'synthetic', which
allows the PartialEvaluator to not add the 'router' identifier down the
line. Tests are included for both the PartialEvaluator itself as well as the
resultant buggy behavior in ngtsc overall.

PR Close #29387
2019-03-19 01:10:17 -04:00
Paul Gschwendtner 105cfaf5e4 fix(compiler-cli): incorrect metadata bundle for multiple unnamed re-exports (#29360)
Currently if an Angular library has multiple unnamed module re-exports, NGC will
generate incorrect metdata if the project is using the flat-module bundle option.

e.g.

_public-api.ts_
```ts
export * from '@mypkg/secondary1';
export * from '@mypkg/secondary2';
```

There are clearly two unnamed re-exports in the `public-api.ts` file. NGC right now
accidentally overwrites all previous re-exports with the last one. Resulting in the
generated metadata only containing a reference to `@mypkg/secondary2`.

This is problematic as it is common for primary library entry-points to have
multiple re-exports (e.g. Material re-exporting all public symbols; or flex-layout
exporting all public symbols from their secondary entry-points).

Currently Angular Material works around this issue by manually creating
a metadata file that declares the re-exports from all unnamed re-exports.

(see: https://github.com/angular/material2/blob/master/tools/package-tools/build-release.ts#L78-L85)

This workaround works fine currently, but is no longer easily integrated when
building the package output with Bazel. In order to be able to build such
libraries with Bazel (Material/flex-layout), we need to make sure that NGC
generates the proper flat-module metadata bundle.

PR Close #29360
2019-03-18 15:08:40 -04:00
Alex Eagle 4d912b6b12 Revert "build: enable shard_count for some jasmine tests that have many specs (#29196)" (#29347)
This reverts commit a5c747f46d.

PR Close #29347
2019-03-15 19:47:00 -04:00
Alex Eagle a5c747f46d build: enable shard_count for some jasmine tests that have many specs (#29196)
This partitions the spects across multiple processes so they run in parallel.

PR Close #29196
2019-03-14 13:14:03 -04:00
Kristiyan Kostadinov 0ffa2f2e73 fix(ivy): unable to inherit view queries into component from directive (#29203)
Fixes components not being able to inherit their view queries from a directive.

This PR resolves FW-1146.

PR Close #29203
2019-03-13 17:12:14 -04:00
Igor Minar 75748d6044 feat: add support for TypeScript 3.3 (and drop older versions) (#29004)
https://blogs.msdn.microsoft.com/typescript/2019/01/31/announcing-typescript-3-3/

BREAKING CHANGE: TypeScript 3.1 and 3.2 are no longer supported.

Please update your TypeScript version to 3.3

PR Close #29004
2019-03-13 10:38:37 -07:00
Alex Rickabaugh 73da2792c9 fix(ivy): properly compile NgModules with forward referenced types (#29198)
Previously, ngtsc would resolve forward references while evaluating the
bootstrap, declaration, imports, and exports fields of NgModule types.
However, when generating the resulting ngModuleDef, the forward nature of
these references was not taken into consideration, and so the generated JS
code would incorrectly reference types not yet declared.

This commit fixes this issue by introducing function closures in the
NgModuleDef type, similarly to how NgComponentDef uses them for forward
declarations of its directives and pipes arrays. ngtsc will then generate
closures when required, and the runtime will unwrap them if present.

PR Close #29198
2019-03-12 18:26:42 -07:00
Alex Rickabaugh ccb70e1c64 fix(ivy): reuse default imports in type-to-value references (#29266)
This fixes an issue with commit b6f6b117. In this commit, default imports
processed in a type-to-value conversion were recorded as non-local imports
with a '*' name, and the ImportManager generated a new default import for
them. When transpiled to ES2015 modules, this resulted in the following
correct code:

import i3 from './module';

// somewhere in the file, a value reference of i3:
{type: i3}

However, when the AST with this synthetic import and reference was
transpiled to non-ES2015 modules (for example, to commonjs) an issue
appeared:

var module_1 = require('./module');
{type: i3}

TypeScript renames the imported identifier from i3 to module_1, but doesn't
substitute later references to i3. This is because the import and reference
are both synthetic, and never went through the TypeScript AST step of
"binding" which associates the reference to its import. This association is
important during emit when the identifiers might change.

Synthetic (transformer-added) imports will never be bound properly. The only
possible solution is to reuse the user's original import and the identifier
from it, which will be properly downleveled. The issue with this approach
(which prompted the fix in b6f6b117) is that if the import is only used in a
type position, TypeScript will mark it for deletion in the generated JS,
even though additional non-type usages are added in the transformer. This
again would leave a dangling import.

To work around this, it's necessary for the compiler to keep track of
identifiers that it emits which came from default imports, and tell TS not
to remove those imports during transpilation. A `DefaultImportTracker` class
is implemented to perform this tracking. It implements a
`DefaultImportRecorder` interface, which is used to record two significant
pieces of information:

* when a WrappedNodeExpr is generated which refers to a default imported
  value, the ts.Identifier is associated to the ts.ImportDeclaration via
  the recorder.
* when that WrappedNodeExpr is later emitted as part of the statement /
  expression translators, the fact that the ts.Identifier was used is
  also recorded.

Combined, this tracking gives the `DefaultImportTracker` enough information
to implement another TS transformer, which can recognize default imports
which were used in the output of the Ivy transform and can prevent them
from being elided. This is done by creating a new ts.ImportDeclaration for
the imports with the same ts.ImportClause. A test verifies that this works.

PR Close #29266
2019-03-12 18:02:08 -07:00
Andrew Kushnir fe76494759 fix(ivy): use default selector for Components if selector is empty (#29239)
Prior to this change default selector for Components was not applied in case selector is missing or defined as an empty string. This update aligns this behavior between Ivy and VE: now default selector is used for Components when it's needed. Directives with empty selector are not allowed and trigger a compile-time error in both Ivy and VE.

PR Close #29239
2019-03-12 14:09:46 -07:00
Andrew Kushnir 1d88c2bb81 fix(ivy): handle aliased Angular decorators (#29195)
Prior to this change the code didn't take into account the fact that decorators can be aliases while importing into a script. As a result, these decorators were not recognized by Angular and various failures happened because of that. Now we take aliases into account and resolve decorator name properly.

PR Close #29195
2019-03-11 11:20:41 -07:00
Alex Rickabaugh 49dccf4bfc fix(ivy): process separate declarations and exports for summaries (#29193)
ngsummary files were generated with an export for each class declaration.
However, some Angular code declares classes (class Foo) and exports them
(export {Foo}) separately, which was causing incomplete summary files.

This commit expands the set of symbol names for which summary exports will
be generated, fixing this issue.

PR Close #29193
2019-03-08 16:11:32 -08:00
Alex Rickabaugh 3a6ba00286 fix(ivy): escape all required characters in reexport aliases (#29194)
Previously, the compiler did not escape . or $, and this was causing issues
in google3. Now these characters are escaped.

PR Close #29194
2019-03-08 16:10:57 -08:00
Alex Rickabaugh c37ec8b255 fix(ivy): produce ts.Diagnostics for NgModule scope errors (#29191)
Previously, when the NgModule scope resolver discovered semantic errors
within a users NgModules, it would throw assertion errors. TODOs in the
codebase indicated these should become ts.Diagnostics eventually.

Besides producing better-looking errors, there is another reason to make
this change asap: these assertions were shadowing actual errors, via an
interesting mechanism:

1) a component would produce a ts.Diagnostic during its analyze() step
2) as a result, it wouldn't register component metadata with the scope
   resolver
3) the NgModule for the component references it in exports, which was
   detected as an invalid export (no metadata registering it as a
   component).
4) the resulting assertion error would crash the compiler, hiding the
   real cause of the problem (an invalid component).

This commit should mitigate this problem by converting scoping errors to
proper ts.Diagnostics. Additionally, we should consider registering some
marker indicating a class is a directive/component/pipe without actually
requiring full metadata to be produced for it, which would allow suppression
of errors like "invalid export" for such invalid types.

PR Close #29191
2019-03-08 14:21:48 -08:00
Alan b012ab210b test: add interm fix for test that rely on an index.d.ts file (#28884)
At the moment, certain tests relies on resolving the module with an index.d.ts, this root cause might be some implementations are missing from the mocks.

Similar to: 58b4045359

PR Close #28884
2019-03-08 12:36:55 -08:00
Alex Rickabaugh b6f6b1178f fix(ivy): generate type references to a default import (#29146)
This commit refactors and expands ngtsc's support for generating imports of
values from imports of types (this is used for example when importing a
class referenced in a type annotation in a constructor).

Previously, this logic handled "import {Foo} from" and "import * as foo
from" style imports, but failed on imports of default values ("import
Foo from"). This commit moves the type-to-value logic to a separate file and
expands it to cover the default import case. Doing this also required
augmenting the ImportManager to track default as well as non-default import
generation. The APIs were made a little cleaner at the same time.

PR Close #29146
2019-03-08 11:57:08 -08:00
Andrew Kushnir fd5cd100a3 fix(ivy): move i18n instructions after listener ones (#29173)
Prior to this commit, i18n instructions (i18n, i18nStart) were generated before listener instructions. As a result, event listeners were attached to the wrong element (text node, not the parent element). This change updates the order of instructions and puts i18n ones after listeners, to make sure listeners are attached to the right elements.

PR Close #29173
2019-03-07 15:36:39 -08:00
Pete Bacon Darwin f535f31d78 fix(ivy): match attribute selectors for content projection with inline-templates (#29041)
The content projection mechanism is static, in that it only looks at the static
template nodes before directives are matched and change detection is run.
When you have a selector-based content projection the selection is based
on nodes that are available in the template.

For example:

```
<ng-content selector="[some-attr]"></ng-content>
```

would match

```
<div some-attr="..."></div>
```

If you have an inline-template in your projected nodes. For example:

```
<div *ngIf="..." some-attr="..."></div>
```

This gets pre-parsed and converted to a canonical form.

For example:

```
<ng-template [ngIf]="...">
  <div some-attr=".."></div>
</ng-template>
```

Note that only structural attributes (e.g. `*ngIf`) stay with the `<ng-template>`
node. The other attributes move to the contained element inside the template.

When this happens in ivy, the ng-template content is removed
from the component template function and is compiled into its own
template function. But this means that the information about the
attributes that were on the content are lost and the projection
selection mechanism is unable to match the original
`<div *ngIf="..." some-attr>`.

This commit adds support for this in ivy. Attributes are separated into three
groups (Bindings, Templates and "other"). For inline-templates the Bindings
and "other" types are hoisted back from the contained node to the `template()`
instruction, so that they can be used in content projection matching.

PR Close #29041
2019-03-07 11:27:36 -08:00
Pete Bacon Darwin 423ac01dcf refactor: rename `AttributeMarker.ProjectOnly` to `AttributeMarker.Bindings` (#29041)
PR Close #29041
2019-03-07 11:27:35 -08:00
Andrew Kushnir dc6192c8e5 fix(ivy): properly detect "inputs" and "outputs" field names that should be wrapped in quotes (#29126)
Prior to this change, the RegExp that was used to check for dashes in field names used "g" (global) flag that retains lastIndex, which might result in skipping some fields that should be wrapped in quotes (since lastIndex advanced beyond the next "-" location). This commit removes this flag and updates the test to make sure there are no regressions.

PR Close #29126
2019-03-06 11:01:53 -08:00
Alex Rickabaugh 881807dc36 fix(ivy): never use imported type references as values (#29111)
ngtsc occasionally converts a type reference (such as the type of a
parameter in a constructor) to a value reference (argument to a
directiveInject call). TypeScript has a bad habit of sometimes removing
the import statement associated with this type reference, because it's a
type only import when it initially looks at the file.

A solution to this is to always add an import to refer to a type position
value that's imported, and not rely on the existing import.

PR Close #29111
2019-03-05 16:47:41 -08:00
Marc Laval 25166d4f41 fix(ivy): support property values changed in ngOnChanges (forward rref case) (#29054)
PR Close #29054
2019-03-05 14:27:08 -08:00
Alex Rickabaugh 866d500324 fix(ivy): copy top-level comments into generated factory shims (#29065)
When ngtsc generates a .ngfactory shim, it does so based on the contents of
an original file in the program. Occasionally these original files have
comments at the top which are load-bearing (e.g. they contain jsdoc
annotations which are significant to downstream bundling tools). The
generated factory shims should preserve this comment.

This commit adds a step to the ngfactory generator to preserve the top-level
comment from the original source file.

FW-1006 #resolve
FW-1095 #resolve

PR Close #29065
2019-03-04 15:59:07 -08:00
Andrew Kushnir aa57bdbf90 fix(ivy): wrap "inputs" and "outputs" keys if they contain unsafe characters (#28919)
Prior to this change, keys in "inputs" and "outputs" objects generated by compiler were not checked against unsafe characters. As a result, in some cases the generated code was throwing JS error. Now we check whether a given key contains any unsafe chars and wrap it in quotes if needed.

PR Close #28919
2019-03-04 14:40:42 -08:00
Alex Rickabaugh b1df9a30f4 fix(ivy): use the imported name of decorators for detection (#29061)
Currently, ngtsc has a bug where if you alias the name of a decorator when
importing it, it won't be detected properly. This is because the compiler
uses the aliased name and not the original, declared name of the decorator
for detection.

This commit fixes the compiler to compare against the declared name of
decorators when available, and adds a test to prevent regression.

PR Close #29061
2019-03-01 15:19:34 -08:00
Alex Rickabaugh 3e5c1bcb9f fix(ivy): track cyclic imports that are added (#29040)
ngtsc has cyclic import detection, to determine when adding an import to a
directive or pipe would create a cycle. However, this detection must also
account for already inserted imports, as it's possible for both directions
of a circular import to be inserted by Ivy (as opposed to at least one of
those edges existing in the user's program).

This commit fixes the circular import detection for components to take into
consideration already added edges. This is difficult for one critical
reason: only edges to files which will *actually* be imported should be
considered. However, that depends on which directives & pipes are used in
a given template, which is currently only known by running the
TemplateDefinitionBuilder during the 'compile' phase. This is too late; the
decision whether to use remote scoping (which consults the import graph) is
made during the 'resolve' phase, before any compilation has taken place.

Thus, the only way to correctly consider synthetic edges is for the compiler
to know exactly which directives & pipes are used in a template during
'resolve'. There are two ways to achieve this:

1) refactor `TemplateDefinitionBuilder` to do its work in two phases, with
directive matching occurring as a separate step which can be performed
earlier.

2) use the `R3TargetBinder` in the 'resolve' phase to independently bind the
template and get information about used directives.

Option 1 is ideal, but option 2 is currently used for practical reasons. The
cost of binding the template can be shared with template-typechecking.

PR Close #29040
2019-03-01 15:18:50 -08:00
Alex Rickabaugh b50283ed67 fix(ivy): support dynamic host attribute bindings (#29033)
In the @Component decorator, the 'host' field is an object which represents
host bindings. The type of this field is complex, but is generally of the
form {[key: string]: string}. Several different kinds of bindings can be
specified, depending on the structure of the key.

For example:

```
@Component({
  host: {'[prop]': 'someExpr'}
})
```

will bind an expression 'someExpr' to the property 'prop'. This is known to
be a property binding because of the square brackets in the binding key.

If the binding key is a plain string (no brackets or parentheses), then it
is known as an attribute binding. In this case, the right-hand side is not
interpreted as an expression, but is instead a constant string.

There is no actual requirement that at build time, these constant strings
are known to the compiler, but this was previously enforced as a side effect
of requiring the binding expressions for property and event bindings to be
statically known (as they need to be parsed). This commit breaks that
relationship and allows the attribute bindings to be dynamic. In the case
that they are dynamic, the references to the dynamic values are reflected
into the Ivy instructions for attribute bindings.

PR Close #29033
2019-03-01 15:18:13 -08:00
Greg Magolan ea09430039 build: rules_nodejs 0.26.0 & use @npm instead of @ngdeps now that downstream angular build uses angular bundles (#28871)
PR Close #28871
2019-02-28 12:06:36 -08:00
Andrew Kushnir 772b24ccc3 fix(ivy): avoid missing imports for types that can be represented as values (#28941)
Prior to this change, TypeScript stripped out some imports in case we reference a type that can be represented as a value (for ex. classes). This fix ensures that we use correct symbol identifier, which makes TypeScript retain the necessary import statements.

PR Close #28941
2019-02-27 15:13:40 -08:00
Alex Rickabaugh 827e89cfc4 feat(ivy): support inline <style> and <link> tags in components (#28997)
Angular supports using <style> and <link> tags inline in component
templates, but previously such tags were not implemented within the ngtsc
compiler. This commit introduces that support.

FW-1069 #resolve

PR Close #28997
2019-02-27 11:56:40 -08:00
Andrew Kushnir 40833ba54b fix(ivy): process property bindings in i18n blocks similar to non-i18n bindings (#28969)
Prior to this change i18n block bindings were converted to Expressions right away (once we first access them), when in non-i18n cases we processed them differently: the actual conversion happens at instructions generation. Because of this discrepancy, the output for bindings in i18n blocks was generated incorrectly (with invalid indicies in pipeBindN fns and invalid references to non-existent local variables). Now the bindings processing is unified and i18nExp instructions should contain right bind expressions.

PR Close #28969
2019-02-27 11:56:12 -08:00
Andrew Kushnir 034de06ab1 fix(ivy): avoid duplicate i18n consts to be present in generated output (#28967)
Prior to this change, the logic that outputs i18n consts (like `const MSG_XXX = goog.getMsg(...)`) didn't have a check whether a given const that represent a certain i18n message was already included into the generated output. This commit adds the logic to mark corresponding i18n contexts after translation was generated, to avoid duplicate consts in the output.

PR Close #28967
2019-02-27 10:33:41 -08:00
Wassim Chegham dad5a258b8 style: enforce buildifier lint on CI (#28186)
PR Close #28186
2019-02-26 16:57:41 -08:00
Wassim Chegham ce68b4d839 style: enforce buildifier lint on CI (#28186)
PR Close #28186
2019-02-26 16:57:41 -08:00
Marc Laval 8f8f9a6e61 fix(ivy): ngtsc should correctly bind to context in nested template with many bindings (#28982)
PR Close #28982
2019-02-26 11:54:13 -08:00
Alex Rickabaugh c1392ce618 feat(ivy): produce and consume ES2015 re-exports for NgModule re-exports (#28852)
In certain configurations (such as the g3 repository) which have lots of
small compilation units as well as strict dependency checking on generated
code, ngtsc's default strategy of directly importing directives/pipes into
components will not work. To handle these cases, an additional mode is
introduced, and is enabled when using the FileToModuleHost provided by such
compilation environments.

In this mode, when ngtsc encounters an NgModule which re-exports another
from a different file, it will re-export all the directives it contains at
the ES2015 level. The exports will have a predictable name based on the
FileToModuleHost. For example, if the host says that a directive Foo is
from the 'root/external/foo' module, ngtsc will add:

```
export {Foo as ɵng$root$external$foo$$Foo} from 'root/external/foo';
```

Consumers of the re-exported directive will then import it via this path
instead of directly from root/external/foo, preserving strict dependency
semantics.

PR Close #28852
2019-02-22 12:15:58 -08:00
Alex Rickabaugh 15c065f9a0 refactor(ivy): extract selector scope logic to a new ngtsc package (#28852)
This commit splits apart selector_scope.ts in ngtsc and extracts the logic
into two separate classes, the LocalModuleScopeRegistry and the
DtsModuleScopeResolver. The logic is cleaned up significantly and new tests
are added to verify behavior.

LocalModuleScopeRegistry implements the NgModule semantics for compilation
scopes, and handles NgModules declared in the current compilation unit.
DtsModuleScopeResolver implements simpler logic for export scopes and
handles NgModules declared in .d.ts files.

This is done in preparation for the addition of re-export logic to solve
StrictDeps issues.

PR Close #28852
2019-02-22 12:15:58 -08:00
Kristiyan Kostadinov 32ae84da28 fixup! fix(ivy): incorrectly remapping certain properties that refer to inputs (#28765)
PR Close #28765
2019-02-21 17:59:50 -08:00
Andrew Kushnir 95d9aa22ef fix(ivy): allow HTML comments to be present inside <ng-content> (#28849)
Prior to this change presence of HTML comments inside <ng-content> caused compiler to throw an error that <ng-content> is not empty. Now HTML comments are not considered as a meaningful content, thus no error is thrown. This behavior is now aligned in Ivy/VE.

PR Close #28849
2019-02-21 00:13:40 -08:00
Andrew Kushnir df627e65df fix(ivy): correct absolute path processing for templateUrl and styleUrls (#28789)
Prior to this change absolute file paths (like `/a/b/c/style.css`) were calculated taking current component file location into account. As a result, absolute file paths were calculated using current file as a root. This change updates this logic to ignore current file path in case of absolute paths.

PR Close #28789
2019-02-21 00:13:12 -08:00
Andrew Kushnir 72d043f669 fix(ivy): check the presence of .css resource for styleUrls (#28770)
Prior to this change, Ivy and VE CSS resource resolution was different: in addition to specified styleUrl (with .scss, .less and .styl extensions), VE also makes an attempt to resolve resource with .css extension. This change introduces similar logic for Ivy to make sure Ivy behavior is backwards compatible.

PR Close #28770
2019-02-21 00:12:43 -08:00
Andrew Kushnir be121bba85 fix(ivy): restore @fileoverview annotations for Closure (#28723)
Prior to this change, the @fileoverview annotations added by users in source files or by tsickle during compilation might have change a location due to the fact that Ngtsc may prepend extra imports or constants. As a result, the output file is considered invalid by Closure (misplaced @fileoverview annotation). In order to resolve the problem we relocate @fileoverview annotation if we detect that its host node shifted.

PR Close #28723
2019-02-21 00:12:14 -08:00
Paul Gschwendtner 58436fd81a fix(ivy): unable to import shim factory files on case-insensitive platforms (#28831)
This change is kind of similar to #27466, but instead of ensuring that
these shims can be generated, we also need to make sure that developers
are able to also use the factory shims like with `ngc`.

This issue is now surfacing because we have various old examples which
are now also built with `ngtsc`  (due to the bazel migration). On case insensitive
platforms (e.g. windows) these examples cannot be built because ngtsc fails
the app imports a generated shim file (such as the factory shim files).

This is because the `GeneratedShimsHostWrapper` TypeScript host uses
the `getCanonicalFileName` method in order to check whether a given
file/module exists in the generator file maps. e.g.

```
// Generator Map:
'C:/users/paul/_bazel_paul/lm3s4mgv/execroot/angular/packages/core/index.ngfactory.ts' =>
'C:/users/paul/_bazel_paul/lm3s4mgv/execroot/angular/packages/core/index.ts',

// Path passed into `fileExists`
C:/users/paul/_bazel_paul/lm3s4mgv/execroot/angular/packages/core/index.ngfactory.ts

// After getCanonicalFileName (notice the **lower-case drive name**)
c:/users/paul/_bazel_paul/lm3s4mgv/execroot/angular/packages/core/index.ngfactory.ts
```

As seen above, the generator map does not use the canonical file names, as well as
TypeScript internally does not pass around canonical file names. We can fix this by removing
the manual call to `getCanonicalFileName` and just following TypeScript internal-semantics.

PR Close #28831
2019-02-20 18:26:05 -08:00
Paul Gschwendtner 3336de0970 refactor(ivy): fix typo in ngtsc "listLazyRoutes" method (#28831)
Fixes a minor typo in the `listLazyRoutes` method for `ngtsc`. Also in
addition fixes that a newly introduced test for `listLazyRoutes` broke the
tests in Windows. It's clear that we still don't run tests against
Windows, but we also made all other tests pass (without CI verification),
and it's not a big deal fixing this while being at it.

PR Close #28831
2019-02-20 18:26:05 -08:00
Matias Niemelä d0e81eb593 feat(ivy): open up ivy_switch_mode to non-core packages (#28711)
Prior to this fix, using the compiler's ivy_switch mechanism was
only available to core packages. This patch allows for this variable
switching mechanism to work across all other angular packages.

PR Close #28711
2019-02-20 13:46:14 -08:00
Greg Magolan 25aae64274 build(bazel): do not build rxjs from source under Bazel (#28720)
PR Close #28720
2019-02-19 16:28:14 -08:00
Kara Erickson 3c1a1620e3 fix(ivy): support static ContentChild queries (#28811)
This commit adds support for the `static: true` flag in `ContentChild`
queries. Prior to this commit, all `ContentChild` queries were resolved
after change detection ran. This is a problem for backwards
compatibility because View Engine also supported "static" queries which
would resolve before change detection.

Now if users add a `static: true` option, the query will be resolved in
creation mode (before change detection runs). For example:

```ts
@ContentChild(TemplateRef, {static: true}) template !: TemplateRef;
```

This feature will come in handy for components that need
to create components dynamically.

PR Close #28811
2019-02-19 15:29:01 -08:00
Kara Erickson a4638d5a81 fix(ivy): support static ViewChild queries (#28811)
This commit adds support for the `static: true` flag in
`ViewChild` queries. Prior to this commit, all `ViewChild`
queries were resolved after change detection ran. This is
a problem for backwards compatibility because View Engine
also supported "static" queries which would resolve before
change detection.

Now if users add a `static: true` option, the query will be
resolved in creation mode (before change detection runs).
For example:

```ts
@ViewChild(TemplateRef, {static: true}) template !: TemplateRef;
```

This feature will come in handy for components that need
to create components dynamically.

PR Close #28811
2019-02-19 15:29:00 -08:00
Paul Gschwendtner 4131715df5 fix(compiler-cli): incorrect bundled metadata for static class member call expressions (#28762)
Currently if developers use call expressions in their static
class members ([like we do in Angular](https://github.com/angular/angular/blob/master/packages/core/src/change_detection/differs/keyvalue_differs.ts#L121)),
the metadata that is generated for flat modules is invalid. This
is because the metadata bundler logic currently does not handle
call expressions in static class members and the symbol references
are not rewritten to avoid relative paths in the bundle.

Static class members using a call expression are not relevant for
the ViewEngine AOT compilation, but it is problematic that the
bundled metadata references modules using their original relative
path. This means that the bundled metadata is no longer encapsulated
and depends on other emitted files to be emitted in the proper place.

These incorrect relative paths can now cause issues where NGC
looks for the referenced symbols in the incorrect path. e.g.

```
src/
 | lib/
    | index.ts -> References the call expression using `../../di`
```

Now the metadata looks like that:

```
node_modules/
  | @angular/
  -- | core/
  -- -- | core.metadata.json -> Says that the call expr. is in `../../di`.
  | di/
```

Now if NGC tries to use the metadata files and create the summary files,
NGC resolves the call expression to the `node_modules/di` module. Since
the "unexpected" module does not contain the desired symbol, NGC will
error out.

We should fix this by ensuring that we don't ship corrupted metadata
to NPM which contains relative references that can cause such
failures (other imports can be affected as well; it depends on what
modules the developer has installed and how we import our call
expressions).

Fixes #28741.

PR Close #28762
2019-02-19 12:53:18 -08:00
Filipe Silva 1923c2f99c feat(compiler-cli): make enableIvy ngtsc/true equivalent (#28616)
Currently setting `enableIvy` to true runs a hybrid mode of `ngc` and `ngtsc`. This is counterintuitive given the name of the flag itself.

This PR makes the `true` value equivalent to the previous `ngtsc`, and `ngtsc` becomes an alias for `true`. Effectively this removes the hybrid mode as well since there's no other way to enable it.

PR Close #28616
2019-02-19 12:28:44 -08:00
Alex Rickabaugh 99d8582882 feat(ivy): support @Injectable on already decorated classes (#28523)
Previously, ngtsc would throw an error if two decorators were matched on
the same class simultaneously. However, @Injectable is a special case, and
it appears frequently on component, directive, and pipe classes. For pipes
in particular, it's a common pattern to treat the pipe class also as an
injectable service.

ngtsc actually lacked the capability to compile multiple matching
decorators on a class, so this commit adds support for that. Decorator
handlers (and thus the decorators they match) are classified into three
categories: PRIMARY, SHARED, and WEAK.

PRIMARY handlers compile decorators that cannot coexist with other primary
decorators. The handlers for Component, Directive, Pipe, and NgModule are
marked as PRIMARY. A class may only have one decorator from this group.

SHARED handlers compile decorators that can coexist with others. Injectable
is the only decorator in this category, meaning it's valid to put an
@Injectable decorator on a previously decorated class.

WEAK handlers behave like SHARED, but are dropped if any non-WEAK handler
matches a class. The handler which compiles ngBaseDef is WEAK, since
ngBaseDef is only needed if a class doesn't otherwise have a decorator.

Tests are added to validate that @Injectable can coexist with the other
decorators and that an error is generated when mixing the primaries.

PR Close #28523
2019-02-13 19:13:10 -08:00
Alex Rickabaugh d2742cf473 feat(ivy): compile @Injectable on classes not meant for DI (#28523)
In the past, @Injectable had no side effects and existing Angular code is
therefore littered with @Injectable usage on classes which are not intended
to be injected.

A common example is:

@Injectable()
class Foo {
  constructor(private notInjectable: string) {}
}

and somewhere else:

providers: [{provide: Foo, useFactory: ...})

Here, there is no need for Foo to be injectable - indeed, it's impossible
for the DI system to create an instance of it, as it has a non-injectable
constructor. The provider configures a factory for the DI system to be
able to create instances of Foo.

Adding @Injectable in Ivy signifies that the class's own constructor, and
not a provider, determines how the class will be created.

This commit adds logic to compile classes which are marked with @Injectable
but are otherwise not injectable, and create an ngInjectableDef field with
a factory function that throws an error. This way, existing code in the wild
continues to compile, but if someone attempts to use the injectable it will
fail with a useful error message.

In the case where strictInjectionParameters is set to true, a compile-time
error is thrown instead of the runtime error, as ngtsc has enough
information to determine when injection couldn't possibly be valid.

PR Close #28523
2019-02-13 19:13:10 -08:00
Alex Rickabaugh f8b67712bc fix(ivy): translate WriteKeyExpr expressions properly (#28523)
Translation of WriteKeyExpr expressions was not implemented in the ngtsc
expression translator. This resulted in binding expressions like
"target[key] = $event" not compiling.

This commit fixes the bug by implementing WriteKeyExpr translation.

PR Close #28523
2019-02-13 19:13:10 -08:00
Alex Rickabaugh 3477610f6d fix(ivy): resolve enum values in host bindings (#28523)
Some applications use enum values in their host bindings:

@Component({
  host: {
    '[prop]': EnumType.Key,
  }, ...
})

This commit changes the resolution of host properties to follow the enum
declaration and extract the correct value for the binding.

PR Close #28523
2019-02-13 19:13:10 -08:00
Alex Rickabaugh 09af7ea4f5 fix(compiler): fix two existing expression transformer issues (#28523)
Testing of Ivy revealed two bugs in the AstMemoryEfficientTransformer
class, a part of existing View Engine compiler infrastructure that's
reused in Ivy. These bugs cause AST expressions not to be transformed
under certain circumstances.

The fix is simple, and tests are added to ensure the specific expression
forms that trigger the issue compile properly under Ivy.

PR Close #28523
2019-02-13 19:13:10 -08:00