JSONValue.get

1 import std.exception;
2 string s =
3 `{
4     "a": 123,
5     "b": 3.1415,
6     "c": "text",
7     "d": true,
8     "e": [1, 2, 3],
9     "f": { "a": 1 }
10  }`;
11 
12 struct a { }
13 
14 immutable json = parseJSON(s);
15 assert(json["a"].get!double == 123.0);
16 assert(json["a"].get!int == 123);
17 assert(json["b"].get!double == 3.1415);
18 assertThrown(json["b"].get!int);
19 assert(json["c"].get!string == "text");
20 assert(json["d"].get!bool == true);
21 assertNotThrown(json["e"].get!(JSONValue[]));
22 assertNotThrown(json["f"].get!(JSONValue[string]));
23 static assert(!__traits(compiles, json["a"].get!a));
24 assertThrown(json["e"].get!float);
25 assertThrown(json["d"].get!(JSONValue[string]));
26 assertThrown(json["f"].get!(JSONValue[]));