aleleba/effectcraft
1
0
Fork 0
mirror of https://github.com/storytold/effectcraft.git synced 2026-10-30 13:08:07 -06:00
Code Issues Packages Projects Releases Wiki Activity

Expressions: the kept layers are bounded like the runtime's scripts

Browse Source
This commit is contained in:
tylerjenningsw
2026-10-27 14:04:10 -04:00
parent 2f2ebbdedb
commit ad6b87c60d
1 changed files with 19 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
crates/expr/src/prelude.js
+19 -6
View File
@@ -31,6 +31,7 @@ function __begin(t, v, c, l, path, uid, idx, fd, ti, tt, sv) {
__seed = 0;
__timeless = false;
__projectInfo = null;
__layersTrim();
}
function __finish(r) {
@@ -563,13 +564,25 @@ function Layer(c, l) {
// Layer `l` of comp `c`, made once per runtime: a callable Layer is dearer to make than a plain
// object, so it is kept, and its info (`__info`) is read again in each evaluation.
// The kept layers are out of an expression's reach.
var __layer = (function () {
var layers = {};
return function (c, l) {
// The kept layers are out of an expression's reach, and bounded like the runtime's scripts: once
// `max` are kept, the layers after them aren't, and the next evaluation starts over
// (`__layersTrim`, so a layer stays the same object for a whole evaluation).
var __layer, __layersTrim;
(function () {
var layers = {}, kept = 0, max = 4096;
__layer = function (c, l) {
// By comp, then layer: a `c + ':' + l` key costs more to build than the lookup saves.
var m = layers[c] || (layers[c] = {});
return m[l] || (m[l] = new Layer(c, l));
var m = layers[c], f = m && m[l];
if (f) return f;
f = new Layer(c, l);
if (kept < max) {
(m || (layers[c] = {}))[l] = f;
kept++;
}
return f;
};
__layersTrim = function () {
if (kept >= max) { layers = {}; kept = 0; }
};
})();