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feat(di): introduce aliasing

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Closes #710
Closes #747
This commit is contained in:
Pawel Kozlowski
2015-02-21 15:18:06 +01:00
parent a80105f30a
commit 0c4fbfc8e2
3 changed files with 41 additions and 2 deletions
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12
modules/angular2/docs/di/di.md
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@ -96,7 +96,7 @@ var car = child.get(Car); // uses the Car binding from the parent injector and E
## Bindings
You can bind to a class, a value, or a factory
You can bind to a class, a value, or a factory. It is also possible to alias existing bindings.
```
var inj = new Injector([
@ -128,6 +128,16 @@ var inj = new Injector([
]);
```
If you want to alias an existing binding, you can do so using `toAlias`:
```
var inj = new Injector([
bind(Engine).toClass(Engine),
bind("engine!").toAlias(Engine)
]);
```
which implies `inj.get(Engine) === inj.get("engine!")`.
Note that tokens and factory functions are decoupled.
```