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use Env.PersistentPromiseResolver

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This commit is contained in:
Muki Kiboigo
2025-09-16 12:09:54 -07:00
parent 24330a7491
commit c553a2cd38
5 changed files with 97 additions and 118 deletions
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44
src/runtime/js.zig
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@@ -1261,6 +1261,13 @@ pub fn Env(comptime State: type, comptime WebApis: type) type {
};
}
pub fn createPersistentPromiseResolver(self: *JsContext) PersistentPromiseResolver {
return .{
.js_context = self,
.resolver = v8.Persistent(v8.PromiseResolver).init(self.isolate, v8.PromiseResolver.init(self.v8_context)),
};
}
// Probing is part of trying to map a JS value to a Zig union. There's
// a lot of ambiguity in this process, in part because some JS values
// can almost always be coerced. For example, anything can be coerced
@@ -2231,6 +2238,43 @@ pub fn Env(comptime State: type, comptime WebApis: type) type {
}
};
pub const PersistentPromiseResolver = struct {
js_context: *JsContext,
resolver: v8.Persistent(v8.PromiseResolver),
pub fn deinit(self: *PersistentPromiseResolver) void {
self.resolver.deinit();
}
pub fn promise(self: PersistentPromiseResolver) Promise {
return .{
.promise = self.resolver.castToPromiseResolver().getPromise(),
};
}
pub fn resolve(self: PersistentPromiseResolver, value: anytype) !void {
const js_context = self.js_context;
const js_value = try js_context.zigValueToJs(value);
// resolver.resolve will return null if the promise isn't pending
const ok = self.resolver.castToPromiseResolver().resolve(js_context.v8_context, js_value) orelse return;
if (!ok) {
return error.FailedToResolvePromise;
}
}
pub fn reject(self: PersistentPromiseResolver, value: anytype) !void {
const js_context = self.js_context;
const js_value = try js_context.zigValueToJs(value);
// resolver.reject will return null if the promise isn't pending
const ok = self.resolver.castToPromiseResolver().reject(js_context.v8_context, js_value) orelse return;
if (!ok) {
return error.FailedToRejectPromise;
}
}
};
pub const Promise = struct {
promise: v8.Promise,
};