4202ce2 · elk · git.iko.soy

git.iko.soy/elk

on master help sign in

Move hot-swap.js code into core.js

4202ce2Evan Czaplicki12 years ago

runtime/core.js+46−1

compare with master

unifiedsplit

@@ -136,7 +136,7 @@ function init(display, container, module, ports, moduleToReplace) {

136 var graphicsNode = initGraphics(elm, Module);

137 }

138 if (typeof moduleToReplace !== 'undefined') {

139− ElmRuntime.swap(moduleToReplace, elm);

139+ hotSwap(moduleToReplace, elm);

140

141 // rerender scene if graphics are enabled.

142 if (typeof graphicsNode !== 'undefined') {

@@ -330,4 +330,49 @@ if (win.requestAnimationFrame && win.cancelAnimationFrame) {

330 };

331}

332

333+

334+//// HOT SWAPPING ////

335+

336+// Returns boolean indicating if the swap was successful.

337+// Requires that the two signal graphs have exactly the same

338+// structure.

339+function hotSwap(from, to) {

340+ function similar(nodeOld,nodeNew) {

341+ var idOkay = nodeOld.id === nodeNew.id;

342+ var lengthOkay = nodeOld.kids.length === nodeNew.kids.length;

343+ return idOkay && lengthOkay;

344+ }

345+ function swap(nodeOld,nodeNew) {

346+ nodeNew.value = nodeOld.value;

347+ return true;

348+ }

349+ var canSwap = depthFirstTraversals(similar, from.inputs, to.inputs);

350+ if (canSwap) {

351+ depthFirstTraversals(swap, from.inputs, to.inputs);

352+ }

353+ from.node.parentNode.replaceChild(to.node, from.node);

354+

355+ return canSwap;

356+}

357+

358+// Returns false if the node operation f ever fails.

359+function depthFirstTraversals(f, queueOld, queueNew) {

360+ if (queueOld.length !== queueNew.length) return false;

361+ queueOld = queueOld.slice(0);

362+ queueNew = queueNew.slice(0);

363+

364+ var seen = [];

365+ while (queueOld.length > 0 && queueNew.length > 0) {

366+ var nodeOld = queueOld.pop();

367+ var nodeNew = queueNew.pop();

368+ if (seen.indexOf(nodeOld.id) < 0) {

369+ if (!f(nodeOld, nodeNew)) return false;

370+ queueOld = queueOld.concat(nodeOld.kids);

371+ queueNew = queueNew.concat(nodeNew.kids);

372+ seen.push(nodeOld.id);

373+ }

374+ }

375+ return true;

376+}

377+

333}());

378}());

runtime/hot-swap.jsdeleted−42

@@ -1,42 +0,0 @@

1−(function() {

2−

3−// Returns boolean indicating if the swap was successful.

4−// Requires that the two signal graphs have exactly the same

5−// structure.

6−ElmRuntime.swap = function(from, to) {

7− function similar(nodeOld,nodeNew) {

8− var idOkay = nodeOld.id === nodeNew.id;

9− var lengthOkay = nodeOld.kids.length === nodeNew.kids.length;

10− return idOkay && lengthOkay;

11− }

12− function swap(nodeOld,nodeNew) {

13− nodeNew.value = nodeOld.value;

14− return true;

15− }

16− var canSwap = depthFirstTraversals(similar, from.inputs, to.inputs);

17− if (canSwap) { depthFirstTraversals(swap, from.inputs, to.inputs); }

18− from.node.parentNode.replaceChild(to.node, from.node);

19− return canSwap;

20−}

21−

22−// Returns false if the node operation f ever fails.

23−function depthFirstTraversals(f, queueOld, queueNew) {

24− if (queueOld.length !== queueNew.length) return false;

25− queueOld = queueOld.slice(0);

26− queueNew = queueNew.slice(0);

27−

28− var seen = [];

29− while (queueOld.length > 0 && queueNew.length > 0) {

30− var nodeOld = queueOld.pop();

31− var nodeNew = queueNew.pop();

32− if (seen.indexOf(nodeOld.id) < 0) {

33− if (!f(nodeOld, nodeNew)) return false;

34− queueOld = queueOld.concat(nodeOld.kids);

35− queueNew = queueNew.concat(nodeNew.kids);

36− seen.push(nodeOld.id);

37− }

38− }

39− return true;

40−}

41−

42−}());