Commit Graph

12 Commits

Author SHA1 Message Date
crisbeto d5b87d32b0 perf(ivy): move attributes array into component def (#32798)
Currently Ivy stores the element attributes into an array above the component def and passes it into the relevant instructions, however the problem is that upon minification the array will get a unique name which won't compress very well. These changes move the attributes array into the component def and pass in the index into the instructions instead.

Before:
```
const _c0 = ['foo', 'bar'];

SomeComp.ngComponentDef = defineComponent({
  template: function() {
    element(0, 'div', _c0);
  }
});
```

After:
```
SomeComp.ngComponentDef = defineComponent({
  consts: [['foo', 'bar']],
  template: function() {
    element(0, 'div', 0);
  }
});
```

A couple of cases that this PR doesn't handle:
* Template references are still in a separate array.
* i18n attributes are still in a separate array.

PR Close #32798
2019-10-09 13:16:55 -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
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
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
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
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
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
Ben Lesh 10217bb3bc feat(ivy): generate ɵɵproperty instructions (#29946)
PR Close #29946
2019-04-19 16:07:52 -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
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
Pete Bacon Darwin d68a98f0cd test(ivy): add template source mapping tests (#28055)
PR Close #28055
2019-02-12 20:58:28 -08:00