compileFromJSON

compileFromJSON(json): (x, inputs?) => object

Rebuild a compiled objective from the data compile’s toJSON produced, on this thread or another.

What comes back behaves like the output of compile, with one difference: it has no objective function to fall back to, so it evaluates only at the shapes it was built for and throws on any other. That is the point. A worker cannot receive a closure, but it can receive this, and the data the closure captured travels inside it as constant leaves; the data the closure took as inputs is asked for again, by name, on every call.

Parameters

json

any

the value compiled.toJSON() returned

Returns

with .value(x, inputs) as on compile

(x, inputs?) => object

Example

const vg = compile(negLogLik);
vg(p0);                                   // builds the graph
const json = vg.toJSON();                 // structured-clonable
const again = compileFromJSON(json);      // in a worker, say
again(p1);                                // same gradient the original gives