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[react] Add ComponentElement<P, T> for instance type inference

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This commit is contained in:
Vincent Siao
2016-03-13 23:17:00 -07:00
parent 5e85e146c6
commit 1a67b639ce
5 changed files with 125 additions and 59 deletions
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42
react/react-tests.ts
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@@ -142,27 +142,31 @@ interface SCProps {
foo?: number;
}
var StatelessComponent = (props: SCProps) => {
function StatelessComponent(props: SCProps) {
return React.DOM.div(null, props.foo);
};
namespace StatelessComponent {
export var displayName = "StatelessComponent";
export var defaultProps = { foo: 42 };
}
// Must explicitly type-annotate to add displayName/defaultProps/contextTypes
var StatelessComponent2: React.StatelessComponent<SCProps> =
(props: SCProps) => React.DOM.div(null, props.foo);
var StatelessComponent2: React.SFC<SCProps> =
// props is contextually typed
props => React.DOM.div(null, props.foo);
StatelessComponent2.displayName = "StatelessComponent2";
StatelessComponent2.defaultProps = {
foo: 42
};
// React.createFactory
var factory: React.Factory<Props> =
var factory: React.CFactory<Props, ModernComponent> =
React.createFactory(ModernComponent);
var factoryElement: React.ReactElement<Props> =
var factoryElement: React.CElement<Props, ModernComponent> =
factory(props);
var statelessFactory: React.Factory<SCProps> =
var statelessFactory: React.SFCFactory<SCProps> =
React.createFactory(StatelessComponent);
var statelessElement: React.ReactElement<SCProps> =
var statelessElement: React.SFCElement<SCProps> =
statelessFactory(props);
var classicFactory: React.ClassicFactory<Props> =
@@ -176,9 +180,9 @@ var domFactoryElement: React.DOMElement<React.DOMAttributes, Element> =
domFactory();
// React.createElement
var element: React.ReactElement<Props> =
var element: React.CElement<Props, ModernComponent> =
React.createElement(ModernComponent, props);
var statelessElement: React.ReactElement<SCProps> =
var statelessElement: React.SFCElement<SCProps> =
React.createElement(StatelessComponent, props);
var classicElement: React.ClassicElement<Props> =
React.createElement(ClassicComponent, props);
@@ -186,9 +190,19 @@ var domElement: React.ReactHTMLElement<HTMLDivElement> =
React.createElement("div");
// React.cloneElement
var clonedElement: React.ReactElement<Props> =
var clonedElement: React.CElement<Props, ModernComponent> =
React.cloneElement(element, { foo: 43 });
var clonedStatelessElement: React.ReactElement<SCProps> =
var clonedElement2: React.CElement<Props, ModernComponent> =
// known problem: cloning with key or ref requires cast
React.cloneElement(element, <React.ClassAttributes<ModernComponent>>{
ref: c => c.reset()
});
var clonedElement3: React.CElement<Props, ModernComponent> =
React.cloneElement(element, <{ foo: number } & React.Attributes>{
key: "8eac7",
foo: 55
});
var clonedStatelessElement: React.SFCElement<SCProps> =
// known problem: cloning with optional props don't work properly
// workaround: cast to actual props type
React.cloneElement(statelessElement, <SCProps>{ foo: 44 });
@@ -200,7 +214,7 @@ var clonedDOMElement: React.ReactHTMLElement<HTMLDivElement> =
});
// React.render
var component: React.Component<Props, any> =
var component: ModernComponent =
ReactDOM.render(element, container);
var classicComponent: React.ClassicComponent<Props, any> =
ReactDOM.render(classicElement, container);
@@ -224,7 +238,7 @@ var type: React.ComponentClass<Props> = element.type;
var elementProps: Props = element.props;
var key: React.Key = element.key;
var t: React.ReactType<any>;
var t: React.ReactType;
var name = typeof t === "string" ? t : t.displayName;
//