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ospab.host/node_modules/effect/dist/esm/internal/stream/emit.js
2025-09-15 18:10:26 +03:00

120 lines
2.8 KiB
JavaScript

import * as Cause from "../../Cause.js";
import * as Chunk from "../../Chunk.js";
import * as Effect from "../../Effect.js";
import * as Exit from "../../Exit.js";
import { pipe } from "../../Function.js";
import * as Option from "../../Option.js";
/** @internal */
export const make = emit => {
const ops = {
chunk(as) {
return this(Effect.succeed(as));
},
die(defect) {
return this(Effect.die(defect));
},
dieMessage(message) {
return this(Effect.dieMessage(message));
},
done(exit) {
return this(Effect.suspend(() => Exit.mapBoth(exit, {
onFailure: Option.some,
onSuccess: Chunk.of
})));
},
end() {
return this(Effect.fail(Option.none()));
},
fail(e) {
return this(Effect.fail(Option.some(e)));
},
fromEffect(effect) {
return this(Effect.mapBoth(effect, {
onFailure: Option.some,
onSuccess: Chunk.of
}));
},
fromEffectChunk(effect) {
return this(pipe(effect, Effect.mapError(Option.some)));
},
halt(cause) {
return this(Effect.failCause(pipe(cause, Cause.map(Option.some))));
},
single(value) {
return this(Effect.succeed(Chunk.of(value)));
}
};
return Object.assign(emit, ops);
};
/** @internal */
export const makePush = (queue, scheduler) => {
let finished = false;
let buffer = [];
let running = false;
function array(items) {
if (finished) return false;
if (items.length <= 50_000) {
buffer.push.apply(buffer, items);
} else {
for (let i = 0; i < items.length; i++) {
buffer.push(items[0]);
}
}
if (!running) {
running = true;
scheduler.scheduleTask(flush, 0);
}
return true;
}
function flush() {
running = false;
if (buffer.length > 0) {
queue.unsafeOffer(buffer);
buffer = [];
}
}
function done(exit) {
if (finished) return;
finished = true;
if (exit._tag === "Success") {
buffer.push(exit.value);
}
flush();
queue.unsafeOffer(exit._tag === "Success" ? Exit.void : exit);
}
return {
single(value) {
if (finished) return false;
buffer.push(value);
if (!running) {
running = true;
scheduler.scheduleTask(flush, 0);
}
return true;
},
array,
chunk(chunk) {
return array(Chunk.toReadonlyArray(chunk));
},
done,
end() {
if (finished) return;
finished = true;
flush();
queue.unsafeOffer(Exit.void);
},
halt(cause) {
return done(Exit.failCause(cause));
},
fail(error) {
return done(Exit.fail(error));
},
die(defect) {
return done(Exit.die(defect));
},
dieMessage(message) {
return done(Exit.die(new Error(message)));
}
};
};
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