Macro method syntax

[lerno]

C3 will introduce macro method syntax. Today there is the method syntax like this:

func void Foo.doSomething(Foo *f) { ... }

Foo f;
f.doSomething();

To add symmetry as well as to allow things like user implemented foreach macro methods are needed. An idea could be this:

macro Foo.doMacroStuff(Foo *f) { ... }

Foo f;
@f.doMacroStuff();

However, since the left hand side this is not obviously a good idea, consider:

@getFoo().doMacroStuff();

Here it's unclear whether @ is indicating that getFoo or doMacroStuff is the actual macro.

There are ways to perhaps fix this:

// A
f.@doMacroStuff();
getFoo().@doMacroStuff();

// B
f@doMacroStuff()
getFoo()@doMacroStuff();

// C
f->doMacroStuff();
getFoo()->doMacroStuff();

// D
f->@doMacroStuff();
getFoo()->@doMacroStuff();

// E 
f#doMacroStuff()
getFoo()#doMacroStuff();

// F - move to end
f.doMacroStuff@();
getFoo().doMacroStuff@();

(F) here would mean that normal macro invocation of @callMacro() would move to callMacro@()