syndicate-lang
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syndicate-js
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Singleton fudgery

This commit is contained in:
Tony Garnock-Jones 2019-06-13 22:18:45 +01:00
parent d04d4f0095
commit 2223f29ad2
2 changed files with 28 additions and 12 deletions
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2
packages/core/package.json
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@ -23,6 +23,6 @@
"dependencies": { "dependencies": {
"debug": "^4.1.1", "debug": "^4.1.1",
"immutable": "^3.8.2", "immutable": "^3.8.2",
"preserves": "0.0.9" "preserves": "0.0.10"
} }
} }

22
packages/core/src/dataspace.js
View File

@ -37,7 +37,14 @@ const PRIORITY = Object.freeze({
_count: 6 _count: 6
}); });
function Dataspace(bootProc) { // Singleton hackery.
const Dataspace = (function () {
const SYNDICATE = Symbol.for('@syndicate-lang/core');
const version = require('../package.json').version;
if (!(SYNDICATE in global)) {
global[SYNDICATE] = {
version: version,
Dataspace: function (bootProc) {
this.nextId = 0; this.nextId = 0;
this.index = new Skeleton.Index(); this.index = new Skeleton.Index();
this.dataflow = new Dataflow.Graph(); this.dataflow = new Dataflow.Graph();
@ -46,13 +53,22 @@ function Dataspace(bootProc) {
new ActionGroup(null, Immutable.List([new Spawn(null, bootProc, Immutable.Set())]))]); new ActionGroup(null, Immutable.List([new Spawn(null, bootProc, Immutable.Set())]))]);
this.activatedModules = Immutable.Set(); this.activatedModules = Immutable.Set();
this.actors = Immutable.Map(); this.actors = Immutable.Map();
} },
};
}
const g = global[SYNDICATE];
if (g.version !== version) {
console.warn('Potentially incompatible versions of @syndicate-lang/core loaded:',
version, g.version);
}
return g.Dataspace;
})();
// Parameters // Parameters
Dataspace._currentFacet = null; Dataspace._currentFacet = null;
Dataspace._inScript = true; Dataspace._inScript = true;
Dataspace.BootSteps = Symbol('SyndicateBootSteps'); Dataspace.BootSteps = Symbol.for('SyndicateBootSteps');
Dataspace.currentFacet = function () { Dataspace.currentFacet = function () {
return Dataspace._currentFacet; return Dataspace._currentFacet;