git.iko.soy/elk
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elk/libraries/Native/Debug.js
61 lines 1.8 kB history raw
1Elm.Native.Debug = {};
2Elm.Native.Debug.make = function(elm) {
3 elm.Native = elm.Native || {};
4 elm.Native.Debug = elm.Native.Debug || {};
5 if (elm.Native.Debug.values) return elm.Native.Debug.values;
6 if ('values' in Elm.Native.Debug)
7 return elm.Native.Debug.values = Elm.Native.Debug.values;
9 var show = Elm.Native.Show.make(elm).show;
10 var replace = Elm.Native.Utils.make(elm).replace;
12 function log(tag, value) {
13 var msg = tag + ': ' + show(value);
14 var process = process || {};
15 if (process.stdout) {
16 process.stdout.write(msg);
17 } else {
18 console.log(msg);
19 }
20 return value;
21 }
23 function tracePath(debugId, elem) {
24 var props = replace([["debugTracePathId",debugId]], elem.props);
25 return replace([["props",props]], elem);
26 }
28 function WatchTracker() {
29 this.frames = [{}];
30 this.clear = function() {
31 this.watches = {};
32 };
33 this.pushFrame = function() {
34 var lastFrame = this.frames[this.frames.length - 1];
35 this.frames.push(lastFrame);
36 }
37 this.notify = function(tag, value) {
38 this.frames[this.frames.length - 1][tag] = value;
39 };
40 }
41 var watchTracker = new WatchTracker();
43 function watch(tag, value) {
44 watchTracker.notify(tag, value);
45 return value;
46 }
48 function watchSummary(tag, f, value) {
49 watchTracker.notify(tag, f(value));
50 return value;
51 }
53 Elm.Native.Debug.values = {
54 tracePath: F2(tracePath),
55 log: F2(log),
56 watch: F2(watch),
57 watchSummary:F3(watchSummary),
58 watchTracker: watchTracker
59 };
60 return elm.Native.Debug.values = Elm.Native.Debug.values;
61};