60 lines
808 B
V
60 lines
808 B
V
fn test_interface_embedding_method_call() {
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mut window := &Window{}
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btn := &Button{}
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window.initables << btn
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window.run()
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}
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[heap]
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pub struct Window {
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mut:
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initables []Initable
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popview PopView = DummyPopup{}
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}
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interface Initable {
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mut:
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init(&Window)
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}
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interface Drawable {
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draw()
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}
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pub fn (mut window Window) run() {
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for mut i in window.initables {
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i.init(window)
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}
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for wd in window.initables {
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if wd is Drawable {
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d := wd as Drawable
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d.draw()
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}
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}
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window.popview.draw()
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}
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struct DummyPopup {}
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fn (d DummyPopup) draw() {}
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interface PopView {
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Drawable
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}
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[heap]
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pub struct Button {
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mut:
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window &Window = voidptr(0)
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}
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pub fn (mut b Button) init(window &Window) {
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b.window = window
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}
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pub fn (b Button) draw() {
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g := b.window.initables
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println(g.len)
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assert g.len == 1
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}
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