1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
use core:lang;
use lang:bs;
use lang:bs:macro;
Expr jsonLiteral(SrcPos pos, Block block, Expr expression) on Compiler {
Type type = named{JsonValue};
// Allow inserting JsonValues directly.
if (expression.result.type.type is type)
return expression;
var part = BSNamePart("__init", pos, Actuals(expression)).withFirst(type);
unless (found = type.find(part, Scope(type)) as Function) {
throw SyntaxError(pos, "Unable to store the type ${expression.result} in a JsonValue.");
}
CtorCall(pos, block.scope, found, Actuals(expression));
}
Expr jsonObject(SrcPos pos, Block block, ObjectElem[] elements) on Compiler {
ExprBlock child(pos, block);
Var map(child, named{Map<Str, JsonValue>}, SStr(" map"), Actuals());
child.add(map);
LocalVarAccess mapAccess(pos, map.var);
for (e in elements) {
Actuals params;
params.add(e.key);
params.add(e.value);
child.add(namedExpr(child, pos, "put", mapAccess, params));
}
child.add(mapAccess);
jsonLiteral(pos, block, child);
}
Expr jsonArray(SrcPos pos, Block block, Expr[] elements) on Compiler {
ExprBlock child(pos, block);
Var array(child, named{Array<JsonValue>}, SStr(" array"), Actuals());
child.add(array);
LocalVarAccess arrayAccess(pos, array.var);
for (e in elements) {
child.add(namedExpr(child, pos, "push", arrayAccess, Actuals(e)));
}
child.add(arrayAccess);
jsonLiteral(pos, block, child);
}
Expr jsonNull(SrcPos pos) on Compiler {
CtorCall(pos, Scope(), named{JsonValue:__init<JsonValue>}, Actuals());
}
/**
* Value storing pairs of expressions as elements to an object.
*/
package value ObjectElem {
Expr key;
Expr value;
init(Expr key, Expr value) {
init {
key = key;
value = value;
}
}
init(SStr key, Expr value) {
init {
key = StrLiteral(key.pos, key.v);
value = value;
}
}
}
|
