stlib arraylist

examples/programs/arraylist/main.bro

@@ -0,0 +1,77 @@
+arraylist :: import "@std/arraylist"
+mem :: import "@std/mem"
+
+_fail_alloc func(_ ?*mut anyopaque, _ usize, _ usize) ?*mut u8 {
+	return none
+}
+
+_fail_realloc func(_ ?*mut anyopaque, _ ?*mut u8, _ usize, _ usize, _ usize) ?*mut u8 {
+	return none
+}
+
+_fail_free func(_ ?*mut anyopaque, _ ?*mut u8, _ usize, _ usize) void {}
+
+_fail_vtable mem.AllocatorVTable :: mem.AllocatorVTable {
+	alloc = _fail_alloc,
+	realloc = _fail_realloc,
+	free = _fail_free,
+}
+
+_fail_allocator mem.Allocator :: mem.Allocator {
+	context = none,
+	vtable = &_fail_vtable,
+}
+
+_noop func() void {}
+
+run func() i32 ! mem.AllocError {
+	values arraylist.ArrayList(i32) = arraylist.init(i32, mem.c_allocator)
+	defer arraylist.deinit(i32, &values)
+	if (values.items.len != 0 or values.capacity != 0) return 1
+
+	i usize = 0
+	while i < 20 : i += 1 {
+		arraylist.append(i32, &values, i32(i)) catch |_| {
+			return .out_of_memory
+		}
+	}
+	if (values.items.len != 20 or values.capacity < 20) return 2
+	if (values.items[0] != 0 or values.items[19] != 19) return 3
+	values.items[3] = 33
+	if (values.items[3] != 33) return 4
+
+	arraylist.reserve(i32, &values, 50) catch |_| {
+		return .out_of_memory
+	}
+	if (values.capacity < 50 or values.items.len != 20 or values.items[19] != 19) return 5
+	capacity usize :: values.capacity
+	arraylist.clear(i32, &values)
+	if (values.items.len != 0 or values.capacity != capacity) return 6
+	arraylist.append(i32, &values, 7) catch |_| {
+		return .out_of_memory
+	}
+	if (values.items.len != 1 or values.items[0] != 7 or values.capacity != capacity) return 7
+
+	empty_values arraylist.ArrayList([0]u8) = arraylist.init([0]u8, mem.c_allocator)
+	defer arraylist.deinit([0]u8, &empty_values)
+	zero [0]u8 :: []
+	arraylist.append([0]u8, &empty_values, zero) catch |_| {
+		return .out_of_memory
+	}
+	if (empty_values.items.len != 1) return 8
+
+	failed arraylist.ArrayList(i32) = arraylist.init(i32, _fail_allocator)
+	failed_as_expected bool = false
+	arraylist.append(i32, &failed, 1) catch |_| {
+		failed_as_expected = true
+		yield _noop()
+	}
+	if (failed_as_expected == false or failed.items.len != 0 or failed.capacity != 0) return 9
+	arraylist.deinit(i32, &failed)
+
+	return 0
+}
+
+main func() i32 {
+	return run() catch 100
+}