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fix(core): cache ComponentRef inputs and outputs (#60156)

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The set of inputs and outputs of a component is static, but the getter for the `inputs` and `outputs` property was re-computing them every time which the user might not expect. These changes add a couple of lines to cache them instead.

PR Close #60156
This commit is contained in:
Kristiyan Kostadinov
2025-02-28 09:05:37 +01:00
committed by Miles Malerba
parent 7ab0a8d1e7
commit af02914852
1 changed files with 13 additions and 2 deletions
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packages/core/src/render3/component_ref.ts
+13 -2
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@@ -186,6 +186,15 @@ export class ComponentFactory<T> extends AbstractComponentFactory<T> {
override componentType: Type<any>;
override ngContentSelectors: string[];
isBoundToModule: boolean;
private cachedInputs:
| {
propName: string;
templateName: string;
isSignal: boolean;
transform?: (value: any) => any;
}[]
| null = null;
private cachedOutputs: {propName: string; templateName: string}[] | null = null;
override get inputs(): {
propName: string;
@@ -193,11 +202,13 @@ export class ComponentFactory<T> extends AbstractComponentFactory<T> {
isSignal: boolean;
transform?: (value: any) => any;
}[] {
return toInputRefArray(this.componentDef.inputs);
this.cachedInputs ??= toInputRefArray(this.componentDef.inputs);
return this.cachedInputs;
}
override get outputs(): {propName: string; templateName: string}[] {
return toOutputRefArray(this.componentDef.outputs);
this.cachedOutputs ??= toOutputRefArray(this.componentDef.outputs);
return this.cachedOutputs;
}
/**