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2026-07-13 12:06:16 +08:00
commit e3c810b1a6
1690 changed files with 228324 additions and 0 deletions
@@ -0,0 +1,155 @@
+'use strict'
+
+var defaults = {
+  results: true
+}
+
+function fastseries (options) {
+  options = Object.assign({}, defaults, options)
+
+  var seriesEach
+  var seriesList
+
+  if (options.results) {
+    seriesEach = resultEach
+    seriesList = resultList
+  } else {
+    seriesEach = noResultEach
+    seriesList = noResultList
+  }
+
+  return series
+
+  function series (that, toCall, arg, done) {
+    done = (done || nop).bind(that)
+
+    if (toCall.length === 0) {
+      done.call(that)
+    } else if (toCall.bind) {
+      if (that) {
+        toCall = toCall.bind(that)
+      }
+      seriesEach(toCall, arg, done)
+    } else {
+      var _list
+      if (that) {
+        var length = toCall.length
+        _list = new Array(length)
+        for (var i = 0; i < length; i++) {
+          _list[i] = toCall[i].bind(that)
+        }
+      } else {
+        _list = toCall
+      }
+
+      seriesList(_list, arg, done)
+    }
+  }
+}
+
+function noResultEach (each, list, cb) {
+  var i = 0
+  var length = list.length
+
+  release()
+
+  function release () {
+    if (i < length) {
+      makeCallTwo(each, list[i++], release)
+    } else {
+      cb()
+    }
+  }
+}
+
+function noResultList (list, arg, cb) {
+  var i = 0
+  var length = list.length
+  var makeCall
+
+  if (list[0].length === 1) {
+    makeCall = makeCallOne
+  } else {
+    makeCall = makeCallTwo
+  }
+
+  release()
+
+  function release () {
+    if (i < length) {
+      makeCall(list[i++], arg, release)
+    } else {
+      cb()
+    }
+  }
+}
+
+function resultEach (each, list, cb) {
+  var i = 0
+  var length = list.length
+  var results = new Array(length)
+
+  release(null, null)
+
+  function release (err, result) {
+    if (err) {
+      cb(err)
+      return
+    }
+
+    if (i > 0) {
+      results[i - 1] = result
+    }
+
+    if (i < length) {
+      makeCallTwo(each, list[i++], release)
+    } else {
+      cb(null, results)
+    }
+  }
+}
+
+function resultList (list, arg, cb) {
+  var i = 0
+  var length = list.length
+  var makeCall
+
+  if (list[0].length === 1) {
+    makeCall = makeCallOne
+  } else {
+    makeCall = makeCallTwo
+  }
+
+  var results = new Array(length)
+
+  release(null, null)
+
+  function release (err, result) {
+    if (err) {
+      cb(err)
+      return
+    }
+
+    if (i > 0) {
+      results[i - 1] = result
+    }
+
+    if (i < length) {
+      makeCall(list[i++], arg, release)
+    } else {
+      cb(null, results)
+    }
+  }
+}
+
+function makeCallOne (cb, arg, release) {
+  cb(release)
+}
+
+function makeCallTwo (cb, arg, release) {
+  cb(arg, release)
+}
+
+function nop () { }
+
+module.exports = fastseries