Author Topic: Struct Function declaration  (Read 419 times)

bas

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Struct Function declaration
« on: April 15, 2017, 09:22:04 PM »
With the current syntax, I think it's quite unclear when a function is a struct function. I would
like to try to make this more explicit. So hereby some ideas.

Code: [Select]
func void point_add(Point* p, int32 x) { .. }    // current syntax

func void Point_add(Point* p, int32 x) { .. }   // allow Upper-case as first char, so looks more like type Point

func void point_add[Point](Point* p, int32 x) { ..} /// hmm, 3 points in a row..no

func void point_add(Point* p, int32 x) @{structfunc} { ..} // via attribute
func void point_add(Point* p, int32 x) @{struct='Point'} { ..} // via attribute, nr 2

func void Point.add(Point* p, int32 x) { .. }   // most explicit, via member operator

..

I like the last option best. The two arguments against it are:
  • it's harder to see what the c- function name is (point_add in all cases). The is actually currently
        the same for module attributes as well (Foo.bar() -> foo_bar)
  • The syntax breaks more with the ansiC style

What do you think?

magnusi

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Re: Struct Function declaration
« Reply #1 on: May 09, 2017, 07:40:09 PM »
how about something like this?
Code: [Select]
func[Point]  void add(self, int32 x) { .. } // add the type to the func keyword, replace replace the instance with self
structfunc void add(Point* p, int32 x) { .. } // just say it's a struct func

The last option was also nice

EDIT:
suggestion No.3:
Code: [Select]
func void add(self*, int32 x) for Point { .. } // variation 1
func void add(Point* self, int32 x) for Point { .. } // variation 2
« Last Edit: May 11, 2017, 08:10:10 PM by magnusi »