Mojo function

struct_field_names

struct_field_names[T: AnyType]() -> InlineArray[StaticString, struct_field_count[T]()]

Returns the names of all fields in struct T as an InlineArray.

This function works with both concrete types and generic type parameters.

Note: For best performance, assign the result to a comptime variable to ensure compile-time evaluation: comptime names = struct_field_names[T]()

Example:

fn print_field_names[T: AnyType]():
    comptime names = struct_field_names[T]()
    @parameter
    for i in range(struct_field_count[T]()):
        print(names[i])

fn main():
    print_field_names[MyStruct]()  # Works with any struct!

Constraints:

T must be a struct type. Passing a non-struct type results in a compile-time error.

Parameters:

T (AnyType): A struct type.

Returns:

InlineArray: An InlineArray of StaticStrings, one for each field name in the struct.