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node_modules/echarts/lib/util/vendor.js

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+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { assert } from 'zrender/lib/core/util.js';
+import { error } from './log.js';
+import { UNDEFINED_STR } from './types.js';
+import { MAX_SAFE_INTEGER } from './number.js';
+/* global Int8Array, Int16Array, Int32Array, Uint8Array, Uint16Array, Uint32Array,
+   Uint8ClampedArray, Float32Array, Float64Array */
+export var Int8ArrayCtor = typeof Int8Array !== UNDEFINED_STR ? Int8Array : undefined;
+export var Int16ArrayCtor = typeof Int16Array !== UNDEFINED_STR ? Int16Array : undefined;
+export var Int32ArrayCtor = typeof Int32Array !== UNDEFINED_STR ? Int32Array : undefined;
+export var Uint8ArrayCtor = typeof Uint8Array !== UNDEFINED_STR ? Uint8Array : undefined;
+export var Uint16ArrayCtor = typeof Uint16Array !== UNDEFINED_STR ? Uint16Array : undefined;
+export var Uint32ArrayCtor = typeof Uint32Array !== UNDEFINED_STR ? Uint32Array : undefined;
+export var Uint8ClampedArrayCtor = typeof Uint8ClampedArray !== UNDEFINED_STR ? Uint8ClampedArray : undefined;
+export var Float32ArrayCtor = typeof Float32Array !== UNDEFINED_STR ? Float32Array : undefined;
+export var Float64ArrayCtor = typeof Float64Array !== UNDEFINED_STR ? Float64Array : undefined;
+export function createFloat32Array(capacity) {
+  return tryEnsureTypedArray({
+    ctor: Float32ArrayCtor
+  }, capacity).arr;
+}
+export function tryEnsureTypedArray(tyArr,
+// Can add more types if needed.
+// NOTICE: Callers need to manage data length themselves.
+// Do not consider `capacity` as the data length.
+capacity) {
+  if (process.env.NODE_ENV !== 'production') {
+    assert(capacity != null && isFinite(capacity) && capacity >= 0 && tyArr.hasOwnProperty('ctor'));
+  }
+  var existingArr = tyArr.arr;
+  var ctor = tyArr.ctor;
+  if (capacity > MAX_SAFE_INTEGER) {
+    capacity = MAX_SAFE_INTEGER;
+  }
+  if (!existingArr || tyArr.typed && existingArr.length < capacity) {
+    var nextArr = void 0;
+    if (ctor) {
+      try {
+        // A large contiguous memory allocation may cause OOM.
+        nextArr = new ctor(capacity);
+        tyArr.typed = true;
+        existingArr && nextArr.set(existingArr);
+      } catch (e) {
+        if (process.env.NODE_ENV !== 'production') {
+          error(e);
+        }
+      }
+    }
+    if (!nextArr) {
+      nextArr = [];
+      tyArr.typed = false;
+      if (existingArr) {
+        for (var i = 0, len = existingArr.length; i < len; i++) {
+          nextArr[i] = existingArr[i];
+        }
+      }
+    }
+    tyArr.arr = nextArr;
+  }
+  return tyArr;
+}