Tracking de l'application VApp (IHM du jeu)

VApp/node_modules/readable-stream/lib/internal/streams/from.js

@@ -0,0 +1,98 @@
+'use strict'
+
+/* replacement start */
+
+const process = require('process/')
+
+/* replacement end */
+
+const { PromisePrototypeThen, SymbolAsyncIterator, SymbolIterator } = require('../../ours/primordials')
+const { Buffer } = require('buffer')
+const { ERR_INVALID_ARG_TYPE, ERR_STREAM_NULL_VALUES } = require('../../ours/errors').codes
+function from(Readable, iterable, opts) {
+  let iterator
+  if (typeof iterable === 'string' || iterable instanceof Buffer) {
+    return new Readable({
+      objectMode: true,
+      ...opts,
+      read() {
+        this.push(iterable)
+        this.push(null)
+      }
+    })
+  }
+  let isAsync
+  if (iterable && iterable[SymbolAsyncIterator]) {
+    isAsync = true
+    iterator = iterable[SymbolAsyncIterator]()
+  } else if (iterable && iterable[SymbolIterator]) {
+    isAsync = false
+    iterator = iterable[SymbolIterator]()
+  } else {
+    throw new ERR_INVALID_ARG_TYPE('iterable', ['Iterable'], iterable)
+  }
+  const readable = new Readable({
+    objectMode: true,
+    highWaterMark: 1,
+    // TODO(ronag): What options should be allowed?
+    ...opts
+  })
+
+  // Flag to protect against _read
+  // being called before last iteration completion.
+  let reading = false
+  readable._read = function () {
+    if (!reading) {
+      reading = true
+      next()
+    }
+  }
+  readable._destroy = function (error, cb) {
+    PromisePrototypeThen(
+      close(error),
+      () => process.nextTick(cb, error),
+      // nextTick is here in case cb throws
+      (e) => process.nextTick(cb, e || error)
+    )
+  }
+  async function close(error) {
+    const hadError = error !== undefined && error !== null
+    const hasThrow = typeof iterator.throw === 'function'
+    if (hadError && hasThrow) {
+      const { value, done } = await iterator.throw(error)
+      await value
+      if (done) {
+        return
+      }
+    }
+    if (typeof iterator.return === 'function') {
+      const { value } = await iterator.return()
+      await value
+    }
+  }
+  async function next() {
+    for (;;) {
+      try {
+        const { value, done } = isAsync ? await iterator.next() : iterator.next()
+        if (done) {
+          readable.push(null)
+        } else {
+          const res = value && typeof value.then === 'function' ? await value : value
+          if (res === null) {
+            reading = false
+            throw new ERR_STREAM_NULL_VALUES()
+          } else if (readable.push(res)) {
+            continue
+          } else {
+            reading = false
+          }
+        }
+      } catch (err) {
+        readable.destroy(err)
+      }
+      break
+    }
+  }
+  return readable
+}
+module.exports = from