On Tuesday, 7 April 2015 at 16:37:15 UTC, Sönke Ludwig wrote:
Anyone up to this? The issues of the previous discussion [1]
have all been addressed now more or less, so the package is
ready for a more thorough review.
Code: https://github.com/s-ludwig/std_data_json
Docs: http://s-ludwig.github.io/std_data_json/
[1]:
http://forum.dlang.org/thread/lt5s76$is$1...@digitalmars.com#post-lt5s76:24is:241:40digitalmars.com
Out of curiosity I tried to use this lib in lately discussed
benchmark [1]
Original values on my machine (dmd 2.067, gdc 4.8.4, ldc2 0.15.1
llvm 3.5.1):
D - 10.22s, 1322.7Mb
D Gdc - 24.30s, 926.8Mb
D Ldc - 25.93s, 925.8Mb
With this lib it gets to [2]:
D - 7.48s, 1794.0Mb
Gdc and Ldc cannot build it with release (debug works) [3] and [4]
I also tried it with vibe.d's json [5]:
D - 44.77s, 2752.5Mb
D Gdc - 163.79s, 936.5Mb
D Ldc - 165.52s, 935.0Mb
So it seems that the new lib is a way to go.
As a newb to D I would like to know if there is a more elegant
way to write:
auto coordinates =
jval.get!(JSONValue[string])["coordinates"].get!(JSONValue[]);
and
x += val.opt("x").coerce!double;
I tried to fiddle with used JSONValue, Algebraic and VariantN
things, but without success.
It's also weird (and undocumented in examples how to use the
JSONValue other than in asserts) that this works:
JSONValue a = 12;
assert(a == 12.0);
and this is not:
long b = a;
I'd like if something like this can be possible:
auto coords = parseJson(text)["coordinates"];
foreach (val; coordinates) {
x += val["x"].get!double;
y += cast(double)val["y"];
z += to!double(val["z"]);
}
Also is there some way to use this lib for serialization and
deserialization of normal objects? To use it like:
auto coords =
parseJson(text)["coordinates"].map!(a=>cast(SomeStruct)a);
[1] https://github.com/kostya/benchmarks/tree/master/json
[2] http://pastebin.com/22xX6V0J
[3] http://pastebin.com/WshDpnQD
[4] http://pastebin.com/zj13Z7yG
[5] http://pastebin.com/FLLXBCe1
