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Method syntax
=============
Definition syntax
-----------------
The parser needs to set a flag if it an identifier is followed by a dot.
1.
func SomeThing.get_number() -> int
func var SomeThing.set_number(int num)
2.
func SomeThing.get_number() -> int
func SomeThing.set_number(int num) var
3.
func SomeThing.get_number() -> int
func SomeThing var.set_number(int num)
4.
func SomeThing.get_number() -> int
func SomeThing.var set_number(int num)
5.
func SomeThing.get_number() -> int
func SomeThing.set_number var(int num)
5.
func SomeThing.get_number() -> int
func SomeThing.set_number!(int num)
Call syntax
-----------
s.set_number(1)
s var.set_number(1)
s.var set_number(1)
s.set_number var(1)
s.set_number!(1)
The ! syntax is the by far most user-friendly.
But how to extend it to other qualifiers?
aliased, threaded, writeonly etc.
Perhaps something like this:
func SomeThing.set_number!(int num)
func SomeThing.set_number threaded(int num)
func SomeThing.set_number threaded!(int num)
s.set_number!(1)
s.set_number threaded(1)
s.set_number threaded!(1)
Things to decide
----------------
* Should the "this" parameter always be passed by reference?
It is rarely any meaningful to pass it by value.
* At least "var"-less value receivers should be disallowed.
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