The AOT compiler supports macros in the form of functions or static methods that return an expression in a single return expression. For example, let us take a below macro function,
export function wrapInArray<T>(value: T): T[] {
return [value];
}
You can use it inside metadata as an expression,
@NgModule({
declarations: wrapInArray(TypicalComponent)
})
export class TypicalModule {}
The compiler treats the macro expression as it written directly
@NgModule({
declarations: [TypicalComponent]
})
export class TypicalModule {}
