Function inspectTargetType

packages/context/src/inject.ts:623–637

(injection: Readonly<Injection>)

 * @param injection - Injection information
 */
export function inspectTargetType(injection: Readonly<Injection>) {
  if (typeof injection.methodDescriptorOrParameterIndex === 'number') {
    const designType = MetadataInspector.getDesignTypeForMethod(
      injection.target,
      injection.member!,
    );
    return designType?.parameterTypes?.[
      injection.methodDescriptorOrParameterIndex as number
    ];
  }
  return MetadataInspector.getDesignTypeForProperty(
    injection.target,
    injection.member!,
  );
}

/**
 * Resolve an array of bound values matching the filter function for `@inject`.