Bug 269429 – Use enum class for SVG Angle Types as suggested in 274778@main

• Status: NEW
• Component: SVG

[Ahmad Saleem]

Hi Team,

We will rename this bug once the PR lands to commit number but this is about FIXME added by Karl:

PR Link - https://github.com/WebKit/WebKit/pull/22653

// FIXME: change the casing style of the enum type or naming of the Angle Value
// see https://github.com/WebKit/WebKit/pull/22653#discussion_r1448856015

Where it should be changed to this as per Tim:

enum class Type : uint8_t {
  Unknown,
  Deg,
  Rad,
  Grad,
  Turn,
}

WebKit Source (pre PR): https://github.com/WebKit/WebKit/blob/49fef559975eadeb4609dfe423aed84f43dcacb9/Source/WebCore/svg/SVGAngleValue.h#L32

Just wanted to raise before we forget.

Thanks!

[Karl Dubost]

How would you solve the difference with IDL?

https://searchfox.org/wubkat/source/Source/WebCore/svg/SVGAngleValue.h
https://searchfox.org/wubkat/source/Source/WebCore/svg/SVGAngle.idl

[Radar WebKit Bug Importer]

<rdar://problem/123419968>

[Ahmad Saleem]

I tried it today but got stuck here:

/Users/ahmadsaleem/OpenSource/Source/WebCore/svg/SVGMarkerElement.cpp:163:62: error: 
      cannot initialize a parameter of type 'unsigned short' with an rvalue of
      type 'SVGAngleValue::Type'
  163 |     Ref { m_orientAngle }->baseVal()->newValueSpecifiedUnits(angle.unitType(), a...
      |

[Karl Dubost]

    ExceptionOr<void> newValueSpecifiedUnits(unsigned short unitType, float valueInSpecifiedUnits);

https://github.com/WebKit/WebKit/blob/84cc6561cbc81c2b2cb3bc36e8d704b78ffe635a/Source/WebCore/svg/SVGAngleValue.h#L54-L55


newValueSpecifiedUnits is expecting a "unsigned short unitType"
but not the enum declaration. 

so probably the types need to be aligned everywhere in the code, whichever is chosen.