Open Bug 1727390 Opened 3 years ago Updated 3 years ago

Improve the ergonomic of arithmetic operations between AuCoord64, AuCoord and nscoord

Categories

(Core :: Layout, enhancement)

Product:
Core
Component:
Layout
Type:
enhancement

Tracking

()

People

(Reporter: TYLin, Unassigned)

References

Details

Currently, AuCoord64 or AuCoord's arithmetic operations of the same type work well. For example,

  AuCoord a = 30;
  AuCoord b = 60;
  a + b;   // ok
  a += b;  // ok

  AuCoord64 c = 90;
  AuCoord64 d = 120;
  c + d;   // ok
  c += d;  // ok

However, if we mix AuCoord64 with either AuCoord or nscoord, some operations need explicit type conversion to compile. For example,

nscoord e = 100;
a + e  // still ok
a += e // still ok
c + e  // error, need to use c + AuCoord64(e)
c += e // still ok

c + a  // error, need to use c + AuCoord64(a)
c += a // error, need to use c + AuCoord64(a)
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