http://d.puremagic.com/issues/show_bug.cgi?id=7431
Summary: overload-resolution should be more fine-grained
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P2
Component: DMD
AssignedTo: [email protected]
ReportedBy: [email protected]
Blocks: 7355
--- Comment #0 from [email protected] 2012-02-03 14:57:21 PST ---
immutable(int)[] bar(immutable(int)[] x){return x;}
int[] bar(int[] x){return x;}
immutable(int)[] foo(immutable(int)[] x, float f){return x;}
int[] foo(int[] x, float f){return x;}
void main(){
bar([1,2,3]); // fine, second version is chosen
foo([1,2,3],4);// currently an error
}
Both foos are a convert match, and neither one is deduced more specialized by
the current rules. I propose to add the following intuitive rule to improve the
programmer-conceived language consistency:
"If a parameter type better matches the argument type than another one, it is
considered to be more specialized."
This will make the foo invocation call the second overload, consistent with how
bar is handled.
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