[Issue 19115] New: Object and Collection Initializers
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Tue Jul 24 09:18:56 UTC 2018
https://issues.dlang.org/show_bug.cgi?id=19115
Issue ID: 19115
Summary: Object and Collection Initializers
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P1
Component: dmd
Assignee: nobody at puremagic.com
Reporter: black80 at bk.ru
Add initialization lists to D.
https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/object-and-collection-initializers
it can be useful in many case: JSON, GUI..
auto lbl = new Label { Text: "hello", Color: Colors.red };
and even more
I think that it should be extended like WITH-keyword in some languages
(lbl is variable from code above, it's created already, we just want change
some props):
lbl = { Text: "hello again", Color: Colors.green }; // no temporary vars
here.
// Text & Color belong to "lbl" variable. same as
lbl.Text = "hello again";
lbl.Color = Colors.green;
// colon":" that means assign"=" looks a little bit weird imo, but like in
JSON/JS
or same as "with" keyword in some unknown language
with lbl {
Text = "hello again",
Color = Colors.green,
}
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