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digitalmars.D.learn - find all public properties at compile time

reply "gedaiu" <szabobogdan yahoo.com> writes:
Hi,

There is a way to determine all public properties (not methods) 
from a struct/class at compile time?

I seen that there are traits to get only methods but not 
properties. Am I wrong?

thanks,
Bogdan
Sep 29 2014
parent reply "Rene Zwanenburg" <renezwanenburg gmail.com> writes:
On Monday, 29 September 2014 at 20:21:43 UTC, gedaiu wrote:

 Hi,

 There is a way to determine all public properties (not methods) 
 from a struct/class at compile time?

 I seen that there are traits to get only methods but not 
 properties. Am I wrong?

 thanks,
 Bogdan


You can get the function attributes of the returned methods using 
std.traits:

http://dlang.org/library/std/traits/functionAttributes.html
http://dlang.org/library/std/traits/FunctionAttribute.html

Vibe's serializer is also a good place to look. The code is a bit 
intimidating but it's handling a ton of corner cases:

https://github.com/rejectedsoftware/vibe.d/blob/master/source/vibe/data/serialization.d#L710
Sep 30 2014
next sibling parent "gedaiu" <szabobogdan yahoo.com> writes:
Thank you for your response!

I don't think that it helps me...

I wanted to get an array like this [ "a", "b", "c" ] for this 
class

class test {


}

Bogdan


On Tuesday, 30 September 2014 at 14:20:04 UTC, Rene Zwanenburg 
wrote:

 On Monday, 29 September 2014 at 20:21:43 UTC, gedaiu wrote:

 Hi,

 There is a way to determine all public properties (not 
 methods) from a struct/class at compile time?

 I seen that there are traits to get only methods but not 
 properties. Am I wrong?

 thanks,
 Bogdan


 You can get the function attributes of the returned methods 
 using std.traits:

 http://dlang.org/library/std/traits/functionAttributes.html
 http://dlang.org/library/std/traits/FunctionAttribute.html

 Vibe's serializer is also a good place to look. The code is a 
 bit intimidating but it's handling a ton of corner cases:

 https://github.com/rejectedsoftware/vibe.d/blob/master/source/vibe/data/serialization.d#L710
Sep 30 2014
prev sibling parent reply "gedaiu" <szabobogdan yahoo.com> writes:
[sorry... this is the edit for the prev post]

Thank you for your response!

I don't think that it helps me...

I wanted to get an array like this [ "a", "b", "c" ] for this
class

class test {

int a;
string b;
double c;

}

Bogdan


On Tuesday, 30 September 2014 at 14:20:04 UTC, Rene Zwanenburg 
wrote:

 On Monday, 29 September 2014 at 20:21:43 UTC, gedaiu wrote:

 Hi,

 There is a way to determine all public properties (not 
 methods) from a struct/class at compile time?

 I seen that there are traits to get only methods but not 
 properties. Am I wrong?

 thanks,
 Bogdan


 You can get the function attributes of the returned methods 
 using std.traits:

 http://dlang.org/library/std/traits/functionAttributes.html
 http://dlang.org/library/std/traits/FunctionAttribute.html

 Vibe's serializer is also a good place to look. The code is a 
 bit intimidating but it's handling a ton of corner cases:

 https://github.com/rejectedsoftware/vibe.d/blob/master/source/vibe/data/serialization.d#L710
Sep 30 2014
parent reply "anonymous" <anonymous example.com> writes:
On Tuesday, 30 September 2014 at 20:04:29 UTC, gedaiu wrote:

 [sorry... this is the edit for the prev post]

 Thank you for your response!

 I don't think that it helps me...

 I wanted to get an array like this [ "a", "b", "c" ] for this
 class

 class test {

 int a;
 string b;
 double c;

 }


import std.typetuple: staticMap;
enum stringOf(alias thing) = thing.stringof;
static assert([staticMap!(stringOf, test.tupleof)] == ["a", "b",
"c"]);
Sep 30 2014
parent Jacob Carlborg <doob me.com> writes:
On 2014-09-30 22:19, anonymous wrote:


 import std.typetuple: staticMap;
 enum stringOf(alias thing) = thing.stringof;


It's better to use __traits(identifier) instead of .stringof.

-- 
/Jacob Carlborg
Sep 30 2014