1 | define(["./kernel", "../json"], function(dojo, json){ |
---|
2 | |
---|
3 | // module: |
---|
4 | // dojo/_base/json |
---|
5 | |
---|
6 | /*===== |
---|
7 | return { |
---|
8 | // summary: |
---|
9 | // This module defines the dojo JSON API. |
---|
10 | }; |
---|
11 | =====*/ |
---|
12 | |
---|
13 | dojo.fromJson = function(/*String*/ js){ |
---|
14 | // summary: |
---|
15 | // Parses a JavaScript expression and returns a JavaScript value. |
---|
16 | // description: |
---|
17 | // Throws for invalid JavaScript expressions. It does not use a strict JSON parser. It |
---|
18 | // always delegates to eval(). The content passed to this method must therefore come |
---|
19 | // from a trusted source. |
---|
20 | // It is recommend that you use dojo/json's parse function for an |
---|
21 | // implementation uses the (faster) native JSON parse when available. |
---|
22 | // js: |
---|
23 | // a string literal of a JavaScript expression, for instance: |
---|
24 | // `'{ "foo": [ "bar", 1, { "baz": "thud" } ] }'` |
---|
25 | |
---|
26 | return eval("(" + js + ")"); // Object |
---|
27 | }; |
---|
28 | |
---|
29 | /*===== |
---|
30 | dojo._escapeString = function(){ |
---|
31 | // summary: |
---|
32 | // Adds escape sequences for non-visual characters, double quote and |
---|
33 | // backslash and surrounds with double quotes to form a valid string |
---|
34 | // literal. |
---|
35 | }; |
---|
36 | =====*/ |
---|
37 | dojo._escapeString = json.stringify; // just delegate to json.stringify |
---|
38 | |
---|
39 | dojo.toJsonIndentStr = "\t"; |
---|
40 | dojo.toJson = function(/*Object*/ it, /*Boolean?*/ prettyPrint){ |
---|
41 | // summary: |
---|
42 | // Returns a [JSON](http://json.org) serialization of an object. |
---|
43 | // description: |
---|
44 | // Returns a [JSON](http://json.org) serialization of an object. |
---|
45 | // Note that this doesn't check for infinite recursion, so don't do that! |
---|
46 | // It is recommend that you use dojo/json's stringify function for an lighter |
---|
47 | // and faster implementation that matches the native JSON API and uses the |
---|
48 | // native JSON serializer when available. |
---|
49 | // it: |
---|
50 | // an object to be serialized. Objects may define their own |
---|
51 | // serialization via a special "__json__" or "json" function |
---|
52 | // property. If a specialized serializer has been defined, it will |
---|
53 | // be used as a fallback. |
---|
54 | // Note that in 1.6, toJson would serialize undefined, but this no longer supported |
---|
55 | // since it is not supported by native JSON serializer. |
---|
56 | // prettyPrint: |
---|
57 | // if true, we indent objects and arrays to make the output prettier. |
---|
58 | // The variable `dojo.toJsonIndentStr` is used as the indent string -- |
---|
59 | // to use something other than the default (tab), change that variable |
---|
60 | // before calling dojo.toJson(). |
---|
61 | // Note that if native JSON support is available, it will be used for serialization, |
---|
62 | // and native implementations vary on the exact spacing used in pretty printing. |
---|
63 | // returns: |
---|
64 | // A JSON string serialization of the passed-in object. |
---|
65 | // example: |
---|
66 | // simple serialization of a trivial object |
---|
67 | // | var jsonStr = dojo.toJson({ howdy: "stranger!", isStrange: true }); |
---|
68 | // | doh.is('{"howdy":"stranger!","isStrange":true}', jsonStr); |
---|
69 | // example: |
---|
70 | // a custom serializer for an objects of a particular class: |
---|
71 | // | dojo.declare("Furby", null, { |
---|
72 | // | furbies: "are strange", |
---|
73 | // | furbyCount: 10, |
---|
74 | // | __json__: function(){ |
---|
75 | // | }, |
---|
76 | // | }); |
---|
77 | |
---|
78 | // use dojo/json |
---|
79 | return json.stringify(it, function(key, value){ |
---|
80 | if(value){ |
---|
81 | var tf = value.__json__||value.json; |
---|
82 | if(typeof tf == "function"){ |
---|
83 | return tf.call(value); |
---|
84 | } |
---|
85 | } |
---|
86 | return value; |
---|
87 | }, prettyPrint && dojo.toJsonIndentStr); // String |
---|
88 | }; |
---|
89 | |
---|
90 | return dojo; |
---|
91 | }); |
---|