Promise

Members

Aliases

V

alias V = typeof(BlackBox.tupleof)

Undocumented in source.

Functions

except

Promise!(S, F) except(S delegate(F) onCatch)

Registers catch callback, equivalent to then(null, ErrorCallback)

finish

Promise!(S, E) finish(S delegate(V) onResolve)

Registers callback to be called at end. Equivalent to then(onFinally, onFinally)

reject

void reject(E err)

Resolves promise and calles then onError callback

resolve

void resolve()

Resolves promise and calles then onResolve callbacks

resolve

void resolve(T val)

Resolves promise and calles then onResolve callbacks

then

Promise!(S, F) then(S delegate(V) onResolve, S delegate(E) onReject)

Registers on resolve functions (set null for no callback)

HTTPRequest prom = new Promise!(string, HTTPStatusException)();

prom.then(delegate void(string s) {
    writeln(s);
}).then(null, delegate void(HTTPStatusException e) {
    writeln("Error ", e.status, ": ",  e.msg);
}).except(delegate void(HTTPStatusException e) {
    writeln(e.msg);
}).finish(delegate void() {
    writeln("Finished after error");
});

prom.resolve("My data");
prom.refresh();
prom.reject(new HTTPStatusException(451, "Reject message"));

• HTTPRequest

• Promise