idea: defining class attributes via constructor?

[gauthier]

what if :

class Foo
    def init(foo as String, bar as DateTime)
        .foo = foo, .bar = bar

would render:

class Foo
    var foo as String
    var bar as DateTime
    def init(foo as String, bar as DateTime)
        .foo = foo, .bar = bar

you could also use

Code: Select all

.foo is private = anotherParameterName

with multiple constructor overloads:

• it will grab up every found member
• the compiler should fail if non nil members (for references) are not properly initialized over all available constructors

what do you think?

[jonathandavid]

What happens if I don't want properties generated for some of the constructor parameters?

[gauthier]

What happens if I don't want properties generated for some of the constructor parameters?

I'm unsure to understand, if you don't want properties/fields you won't use

Code: Select all

.someMemberName = someParameter

in a constructor

am I following you?

[Charles]

what if :
...
you could also use

Code: Select all

.foo is private = anotherParameterName

with multiple constructor overloads:

• it will grab up every found member
• the compiler should fail if non nil members (for references) are not properly initialized over all available constructors

what do you think?

I can't say that I like the idea of having class members generated inside an implementation which could be further into the declaration:

cue init(x as int, y as int)
    require
        x >= 0 and x < 100
        y >= 0 and y < 100
    ensure
        .x == x and .y == y
    body
        .x, .y = x, y  # <-- in your proposal, this line generates class members

So far the shortcut syntax that we have is still based on declarations like:

pro age from int as var

I like that there will be a "pro x" or "get x" line that you see in the class declaration, can search for, possibly jump to with an editor key (next declaration, previous declaration).

Also, if we were to put these in the implementation, it would make it very awkward to have doc strings, contracts, modifiers, etc.

[gauthier]

Chuck, I follow your point.

nevermind, I was surely "bored" not having resharper helpness at hand