possible issue with GetCapacity?

[jeeswg]

Code: Select all

q:: ;test GetCapacity
v1 := 3
v2 := "3"

;work fine
MsgBox, % ObjGetCapacity([v1], 1) "_" ObjGetCapacity([v2], 1)
MsgBox, % ObjGetCapacity([v2], 1) "_" ObjGetCapacity([v1], 1)

;work fine
MsgBox, % [v1].GetCapacity(1)
MsgBox, % [v2].GetCapacity(1)
MsgBox, % ObjGetCapacity([v1], 1)
MsgBox, % ObjGetCapacity([v2], 1)

;doesn't work as expected
MsgBox, % [v2].GetCapacity(1) "_" [v1].GetCapacity(1)
;this still works
MsgBox, % [v2].GetCapacity(1)

;doesn't work as expected
MsgBox, % [v1].GetCapacity(1) "_" [v2].GetCapacity(1)
;now returns blank:
MsgBox, % [v2].GetCapacity(1)
return

[just me]

Seems to be some kind of 'auto-concat' feature:

Code: Select all

; q:: ;test GetCapacity
v1 := 3
v2 := "3"

;work fine
MsgBox, % ObjGetCapacity([v1], 1) "_" ObjGetCapacity([v2], 1)
MsgBox, % ObjGetCapacity([v2], 1) "_" ObjGetCapacity([v1], 1)

;work fine
MsgBox, % [v1].GetCapacity(1)
MsgBox, % [v2].GetCapacity(1)
MsgBox, % ObjGetCapacity([v1], 1)
MsgBox, % ObjGetCapacity([v2], 1)

;doesn't work as expected - this does
MsgBox, % [v2].GetCapacity(1) . "_" . [v1].GetCapacity(1)
;this still works
MsgBox, % [v2].GetCapacity(1)

;doesn't work as expected - this does
MsgBox, % [v1].GetCapacity(1) . "_" . [v2].GetCapacity(1)
;now returns blank: - no
MsgBox, % [v2].GetCapacity(1)
return

[lexikos]

It's not auto-concat.

"_" [v1] does not create an array. It is the same as "_"[v1] or SomeVariable[v1] when SomeVariable contains "_". This is not a bug.

I'm not sure about "now returns blank:".

Edit: That's also not a bug, and part of the reason I did not port type() to v1.

Code: Select all

v2 := "3"
MsgBox % {} [v2]  ; Same effect as "_" [v2]
MsgBox % [v2].GetCapacity(1)

When you index into an object, numeric strings are converted to numbers. When such conversions are made in v1, the number is cached to enhance performance. v1 is not designed to preserve the "type" of the value.

"_" [v2] has the same effect because it implicitly indexes into the default base object ("_".base):

Code: Select all

"".base[3] := "foo"
v2 := "3"
MsgBox % "_" [v2]

Most other expressions which use the variable as a number have the same effect.

Code: Select all

v2 := "3"
MsgBox % v2 = 0  ; v2+0, v2*1, etc.
MsgBox % [v2].GetCapacity(1)

[just me]

It's not auto-concat.

One reason more not to omit the concat operator . if you intend to concatenate and don't want 'unexpected results'.