Re: Is there a way to bypass the file and line into D assert function ?

2019-07-22 Thread Newbie2019 via Digitalmars-d-learn 

On Monday, 22 July 2019 at 09:54:13 UTC, Jacob Carlborg wrote:

On 2019-07-19 22:16, Max Haughton wrote:

Isn't assert a template (file and line) rather than a plain 
function call?


No. It's a keyword, it's built-in to the compiler. It get extra 
benefits compared to a regular functions: the asserts will be 
removed in release builds.


Thanks for explain.

Re: Is there a way to bypass the file and line into D assert function ?

2019-07-22 Thread Jacob Carlborg via Digitalmars-d-learn 

On 2019-07-19 22:16, Max Haughton wrote:


Isn't assert a template (file and line) rather than a plain function call?


No. It's a keyword, it's built-in to the compiler. It get extra benefits 
compared to a regular functions: the asserts will be removed in release 
builds.


--
/Jacob Carlborg

Re: Is there a way to bypass the file and line into D assert function ?

2019-07-19 Thread Max Haughton via Digitalmars-d-learn 

On Friday, 19 July 2019 at 15:30:25 UTC, Newbie2019 wrote:

for example:

void ASSERT(string fmt, string file = __FILE_FULL_PATH__, 
size_t line = __LINE__, T...) (bool c, scope T a)  @nogc {

   assert(c, string, file, line);
}

but i get this error:

error.d(39): Error: found file when expecting )
error.d(39): Error: found ) when expecting ; following statement
error.d(39): Deprecation: use { } for an empty statement, not ;

I want d to print the error message with some format 
information, and show the right file and line for the original 
location.


Is it doable ?


Isn't assert a template (file and line) rather than a plain 
function call?


Worst comes to worst, you can provide your own _d_assert(?) and 
override object.d then just call the C assert

Re: Is there a way to bypass the file and line into D assert function ?

2019-07-19 Thread Jacob Carlborg via Digitalmars-d-learn 

On 2019-07-19 17:30, Newbie2019 wrote:

for example:

void ASSERT(string fmt, string file = __FILE_FULL_PATH__, size_t line = 
__LINE__, T...) (bool c, scope T a)  @nogc {

    assert(c, string, file, line);
}

but i get this error:

error.d(39): Error: found file when expecting )
error.d(39): Error: found ) when expecting ; following statement
error.d(39): Deprecation: use { } for an empty statement, not ;

I want d to print the error message with some format information, and 
show the right file and line for the original location.


Is it doable ?


No, not as far as I know. But you can throw an `AssertError` explicitly, 
which is what `assert` does when it fails. This allows to pass the file 
and line information [1]. Or call `onAssertError` which if called first, 
when an `assert` fails [2].


[1] 
https://github.com/dlang/druntime/blob/3620736bc88129b65f9a01290189de617a6c3b07/src/core/exception.d#L81-L84


[2] 
https://github.com/dlang/druntime/blob/3620736bc88129b65f9a01290189de617a6c3b07/src/core/exception.d#L417-L449


--
/Jacob Carlborg

Is there a way to bypass the file and line into D assert function ?

2019-07-19 Thread Newbie2019 via Digitalmars-d-learn 

for example:

void ASSERT(string fmt, string file = __FILE_FULL_PATH__, size_t 
line = __LINE__, T...) (bool c, scope T a)  @nogc {

   assert(c, string, file, line);
}

but i get this error:

error.d(39): Error: found file when expecting )
error.d(39): Error: found ) when expecting ; following statement
error.d(39): Deprecation: use { } for an empty statement, not ;

I want d to print the error message with some format information, 
and show the right file and line for the original location.


Is it doable ?