allow for future updates to gapp function signatures

This commit is contained in:
Stewart Allen 2022-02-24 14:05:25 -05:00
commit 5822cddedf
2 changed files with 48 additions and 52 deletions

View file

@ -24,6 +24,6 @@
## Mesh:Tool
* `-` face selection and matchinbg preferences
* `-` face selection and matching preferences
* `-` add prefs for normal length, maybe color picker
* `-` svg and image import conversion (share code with Kiri:Moto)

View file

@ -56,81 +56,77 @@ self.noop = () => {};
let gapp = self.gapp = self.gapp || {};
if (gapp.load) return;
// modules to load
let mods = [];
let modn = {};
gapp.overlay = Object.assign;
function exargs(args) {
return {
funcs: args.filter(a => typeof a === 'function'),
arrays: args.filter(a => Array.isArray(a)),
strings: args.filter(a => typeof a === 'string'),
objects: args.filter(a => typeof a === 'object' && !Array.isArray(a))
};
}
// register module without a load function
gapp.register = (name, deps, fn) => {
gapp.load(fn, name, deps);
};
// register module with a load function
gapp.load = (fn, name, deps) => {
let mod = {fn, name, deps};
gapp.register = function() {
const args = exargs([...arguments]);
const name = args.strings[0];
const fn = args.funcs[0];
const mod = { fn, name };
mods.push(mod);
if (name) {
modn[name] = mod;
}
};
// check dependency list and warn if one is missing
gapp.check = (name, deps = []) => {
// warn if dependencies are not present
for (let dep of deps) {
if (!modn[dep]) {
dbug.warn(`'${name || 'module'}' missing dependency '${dep}'`);
}
}
};
// perform dependency checks and run module load functions
gapp.main = (app, deps, post, pre) => {
gapp.main = function() {
const args = exargs([...arguments]);
const app = args.strings[0];
const post = args.funcs[0];
const pre = args.funcs[1];
const root = self;
// optional fn to run before loading
if (pre) pre(root);
// app loader may also pass deps
gapp.check(app, deps);
if (pre) {
pre(root);
}
// load mods after checking if dependency is present
for (let mod of mods) {
let { fn, name, deps } = mod;
if (deps && deps.length) {
dbug.warn({app, mod, deps});
gapp.check(name, deps);
}
let { fn, name } = mod;
// mods with no name can't be depended on, but are allowed
if (name) {
dbug.debug(`${app} | load | ${name}`);
}
// mods with no function are allowed so they can be depended on
if (fn) {
let toks = name.split('.');
let map = toks.pop();
let path = root;
for (let tok of toks) {
if (!path[tok]) {
dbug.debug({creating_root: tok, for: name});
path = path[tok] = {};
} else {
path = path[tok];
}
}
let tmp = path[map] || {};
fn(root, exports => {
if (exports) {
return path[map] = Object.assign(tmp, exports);
}
});
// modules without functions allowed so they can be depended on
if (!fn) {
dbug.debug(`${app} | ${mod.name} | missing fn()`);
continue;
}
// create namespace path in root and execute module load function
let toks = name.split('.');
let map = toks.pop();
let path = root;
for (let tok of toks) {
if (!path[tok]) {
dbug.debug({creating_root: tok, for: name});
path = path[tok] = {};
} else {
path = path[tok];
}
}
let tmp = path[map] || {};
fn(root, exports => {
if (exports) {
return path[map] = Object.assign(tmp, exports);
}
});
}
// force runtime error if gapp.load() called gapp.main()
mods = null;
// optional if not called inline with startup
if (post) post(root);
if (post) {
post(root);
}
};
})();