23 lines
942 B
JavaScript
23 lines
942 B
JavaScript
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export const INJECTION_TOKEN_METADATA_KEY = "injectionTokens";
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export function getParamInfo(target) {
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const params = Reflect.getMetadata("design:paramtypes", target) || [];
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const injectionTokens = Reflect.getOwnMetadata(INJECTION_TOKEN_METADATA_KEY, target) || {};
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Object.keys(injectionTokens).forEach(key => {
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params[+key] = injectionTokens[key];
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});
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return params;
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}
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export function defineInjectionTokenMetadata(data, transform) {
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return function (target, _propertyKey, parameterIndex) {
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const descriptors = Reflect.getOwnMetadata(INJECTION_TOKEN_METADATA_KEY, target) || {};
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descriptors[parameterIndex] = transform
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? {
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token: data,
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transform: transform.transformToken,
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transformArgs: transform.args || []
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}
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: data;
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Reflect.defineMetadata(INJECTION_TOKEN_METADATA_KEY, descriptors, target);
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};
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}
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