Struct - static initialization "on-the-fly"

[Ali Çehreli]

On 08/20/2013 03:47 PM, Marek Janukowicz wrote:> In this program:
 >
 > import std.stdio, std.json;
 >
 > void main () {
 >    JSONValue jsonSet;
 >    jsonSet.type = JSON_TYPE.OBJECT;
 >    JSONValue a = { type: JSON_TYPE.STRING, str: "abcde" }; // This work
 >    jsonSet.object["a"] = a;
 >    jsonSet.object["b"] = { type: JSON_TYPE.STRING, str: "jjf" }; // 
THIS LINE
 > }
 >
 > marked line will not compile failing with:
 > json.d(8): Error: found ':' when expecting ';' following statement
 >
 > Is there any way to selectively initialize a struct while using it as AA
 > value? The way I set "a" key works, but requires two lines instead of one
 > and I have many such elements to set. I can't initialize all members of
 > JSONValue, because there are many and I only need those two.
 >

Unfortunately, that syntax works only when initializing a variable.

Would you like the following syntax instead?

     root.object["a"] = to!JSONValue("abcde");
     root.object["b"] = to!JSONValue("jjf");

If so, the following thread has a rough implementation of a 'to' 
specialization for JSONValue:

   http://forum.dlang.org/post/jl6bsn$67k$1@digitalmars.com

Ali