// Regression test for https://github.com/vlang/v/issues/27076 —
// `$for method in field.methods` inside `$for field in T.fields` evaluated
// `$if method.name == ...` against an empty method name and dropped the body.

struct Comp1 {
mut:
    a int
}

fn (mut c Comp1) on_init() {
    c.a = 42
}

struct Comp2 {
mut:
    b int
}

fn (mut c Comp2) on_init() {
    c.b = 42
}

struct Comp3 {
mut:
    c int
}

fn (mut c Comp3) on_init() {
    c.c = 42
}

struct Container {
mut:
    id   string
    cmp1 Comp1
    cmp2 Comp2
    cmp3 Comp3
    cmp4 Comp1
    cmp5 Comp2
    cmp6 Comp3
    cmp7 Comp1
    cmp8 Comp2
    cmp9 Comp3
}

fn test_comptime_method_dispatch_on_struct_fields() {
    mut app := Container{}
    $for field in Container.fields {
        $if field.is_struct {
            $for method in field.methods {
                $if method.name == 'on_init' {
                    app.$(field.name).on_init()
                }
            }
        }
    }
    assert app.cmp1.a == 42
    assert app.cmp2.b == 42
    assert app.cmp3.c == 42
    assert app.cmp4.a == 42
    assert app.cmp5.b == 42
    assert app.cmp6.c == 42
    assert app.cmp7.a == 42
    assert app.cmp8.b == 42
    assert app.cmp9.c == 42
}