Traits and functions

[Bauss via Digitalmars-d-learn]

Is there a way to get all functions within a module using traits? 
I tried allMembers and it seem to work, but I can't use 
getFunctionAttributes with it and if I use getAttributes then 
it won't find any applied attributes.


What I do is having a package module with a staic constructor 
which loops through allMembers and then I want to find 
functions with a specific attribute. All the members are imported 
using public imports. However it can find the specific functions, 
but it does not find the attributes.

Re: Traits and functions

[Ali Çehreli via Digitalmars-d-learn]

On 01/10/2015 08:21 AM, Bauss wrote:

Is there a way to get all functions within a module using traits? I
tried allMembers and it seem to work, but I can't use
getFunctionAttributes with it and if I use getAttributes then it
won't find any applied attributes.

What I do is having a package module with a staic constructor which
loops through allMembers and then I want to find functions with a
specific attribute. All the members are imported using public imports.
However it can find the specific functions, but it does not find the
attributes.


The following program prints both the function attributes and user 
defined attributes e.g. of foo():


module deneme;

import std.string;
import std.traits;

struct MyAttr
{}

@MyAttr
void foo(int i, double d) pure @nogc nothrow @property
{}

void main()
{
foreach (m; __traits(allMembers, deneme)) {
pragma(msg, format(module member: %s, m));

static if (mixin (isCallable! ~ m)) {
pragma(msg, format(%s is callable, m));

foreach (funcAttr;
 mixin (format(__traits(getFunctionAttributes, 
%s), m))) {

pragma(msg, format(  function attribute: %s, funcAttr));
}

foreach (attr; mixin (format(__traits(getAttributes, %s), 
m))) {

static if (is (attr == MyAttr)) {
pragma(msg, format(  uda: %s, attr.stringof));
}
}
}
}
}

Ali

Re: Traits and functions

[Bauss via Digitalmars-d-learn]

On Saturday, 10 January 2015 at 23:23:52 UTC, Ali Çehreli wrote:

On 01/10/2015 08:21 AM, Bauss wrote:
Is there a way to get all functions within a module using 
traits? I

tried allMembers and it seem to work, but I can't use
getFunctionAttributes with it and if I use getAttributes 
then it

won't find any applied attributes.

What I do is having a package module with a staic constructor 
which
loops through allMembers and then I want to find functions 
with a
specific attribute. All the members are imported using public 
imports.
However it can find the specific functions, but it does not 
find the

attributes.


The following program prints both the function attributes and 
user defined attributes e.g. of foo():


module deneme;

import std.string;
import std.traits;

struct MyAttr
{}

@MyAttr
void foo(int i, double d) pure @nogc nothrow @property
{}

void main()
{
foreach (m; __traits(allMembers, deneme)) {
pragma(msg, format(module member: %s, m));

static if (mixin (isCallable! ~ m)) {
pragma(msg, format(%s is callable, m));

foreach (funcAttr;
 mixin 
(format(__traits(getFunctionAttributes, %s), m))) {
pragma(msg, format(  function attribute: %s, 
funcAttr));

}

foreach (attr; mixin 
(format(__traits(getAttributes, %s), m))) {

static if (is (attr == MyAttr)) {
pragma(msg, format(  uda: %s, 
attr.stringof));

}
}
}
}
}

Ali


Thank you this was exactly what I was looking for!