Hi,

I'm not sure this is in bugzilla, I tried finding something mentioning it but coudn't.

Compiling the below code results in the dmd compiler printing: struct_bad_error.d(8): Error: 'this' is only defined in non-static member functions, not inner

====================
struct S {
	S opCall() {S s; return s;}
}
void main() {
	S s;
	//s = S(); // decent error message: "struct_bad_error.d(6):
		// Error: need 'this' to access member opCall"
	void inner() {
		s = S();
	}
}
=====================

What to do? Also found that having an empty () after the struct name is not the best error message: "struct_bad_error.d(5): Error: struct struct_bad_error.S() is used as a type"

Surely it could tell me I need to put an Identifier in the ()

-Rory

On 2010-07-26 14:27, Rory Mcguire wrote:
> Hi,
>
> I'm not sure this is in bugzilla, I tried finding something mentioning it
> but coudn't.
>
> Compiling the below code results in the dmd compiler printing:
> struct_bad_error.d(8): Error: 'this' is only defined in non-static member
> functions, not inner
>
> ====================
> struct S {
> 	S opCall() {S s; return s;}
> }
> void main() {
> 	S s;
> 	//s = S(); // decent error message: "struct_bad_error.d(6):
> 		// Error: need 'this' to access member opCall"
> 	void inner() {
> 		s = S();
> 	}
> }
> =====================
>
> What to do? Also found that having an empty () after the struct name is not
> the best error message: "struct_bad_error.d(5): Error: struct
> struct_bad_error.S() is used as a type"
>
> Surely it could tell me I need to put an Identifier in the ()
>
> -Rory

Perhaps you want a static opCall ?

S foo;
foo(); // calls opCall
S(); // calls static opCall

-- 
/Jacob Carlborg

Jacob Carlborg wrote:

> On 2010-07-26 14:27, Rory Mcguire wrote:
>> Hi,
>>
>> I'm not sure this is in bugzilla, I tried finding something mentioning it but coudn't.
>>
>> Compiling the below code results in the dmd compiler printing: struct_bad_error.d(8): Error: 'this' is only defined in non-static member functions, not inner
>>
>> ====================
>> struct S {
>> S opCall() {S s; return s;}
>> }
>> void main() {
>> S s;
>> //s = S(); // decent error message: "struct_bad_error.d(6):
>> // Error: need 'this' to access member opCall"
>> void inner() {
>> s = S();
>> }
>> }
>> =====================
>>
>> What to do? Also found that having an empty () after the struct name is
>> not the best error message: "struct_bad_error.d(5): Error: struct
>> struct_bad_error.S() is used as a type"
>>
>> Surely it could tell me I need to put an Identifier in the ()
>>
>> -Rory
> 
> Perhaps you want a static opCall ?
> 
> S foo;
> foo(); // calls opCall
> S(); // calls static opCall
> 


doh! [slaps head]

Thanks