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{"ast":null,"code":"/*\r\n* Licensed to the Apache Software Foundation (ASF) under one\r\n* or more contributor license agreements. See the NOTICE file\r\n* distributed with this work for additional information\r\n* regarding copyright ownership. The ASF licenses this file\r\n* to you under the Apache License, Version 2.0 (the\r\n* \"License\"); you may not use this file except in compliance\r\n* with the License. You may obtain a copy of the License at\r\n*\r\n* http://www.apache.org/licenses/LICENSE-2.0\r\n*\r\n* Unless required by applicable law or agreed to in writing,\r\n* software distributed under the License is distributed on an\r\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\r\n* KIND, either express or implied. See the License for the\r\n* specific language governing permissions and limitations\r\n* under the License.\r\n*/\n\n/**\r\n * AUTO-GENERATED FILE. DO NOT MODIFY.\r\n */\n\n/*\r\n* Licensed to the Apache Software Foundation (ASF) under one\r\n* or more contributor license agreements. See the NOTICE file\r\n* distributed with this work for additional information\r\n* regarding copyright ownership. The ASF licenses this file\r\n* to you under the Apache License, Version 2.0 (the\r\n* \"License\"); you may not use this file except in compliance\r\n* with the License. You may obtain a copy of the License at\r\n*\r\n* http://www.apache.org/licenses/LICENSE-2.0\r\n*\r\n* Unless required by applicable law or agreed to in writing,\r\n* software distributed under the License is distributed on an\r\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\r\n* KIND, either express or implied. See the License for the\r\n* specific language governing permissions and limitations\r\n* under the License.\r\n*/\nvar ORIGIN_METHOD = '\\0__throttleOriginMethod';\nvar RATE = '\\0__throttleRate';\nvar THROTTLE_TYPE = '\\0__throttleType';\n;\n/**\r\n * @public\r\n * @param {(Function)} fn\r\n * @param {number} [delay=0] Unit: ms.\r\n * @param {boolean} [debounce=false]\r\n * true: If call interval less than `delay`, only the last call works.\r\n * false: If call interval less than `delay, call works on fixed rate.\r\n * @return {(Function)} throttled fn.\r\n */\n\nexport function throttle(fn, delay, debounce) {\n var currCall;\n var lastCall = 0;\n var lastExec = 0;\n var timer = null;\n var diff;\n var scope;\n var args;\n var debounceNextCall;\n delay = delay || 0;\n\n function exec() {\n lastExec = new Date().getTime();\n timer = null;\n fn.apply(scope, args || []);\n }\n\n var cb = function cb() {\n var cbArgs = [];\n\n for (var _i = 0; _i < arguments.length; _i++) {\n cbArgs[_i] = arguments[_i];\n }\n\n currCall = new Date().getTime();\n scope = this;\n args = cbArgs;\n var thisDelay = debounceNextCall || delay;\n var thisDebounce = debounceNextCall || debounce;\n debounceNextCall = null;\n diff = currCall - (thisDebounce ? lastCall : lastExec) - thisDelay;\n clearTimeout(timer); // Here we should make sure that: the `exec` SHOULD NOT be called later\n // than a new call of `cb`, that is, preserving the command order. Consider\n // calculating \"scale rate\" when roaming as an example. When a call of `cb`\n // happens, either the `exec` is called dierectly, or the call is delayed.\n // But the delayed call should never be later than next call of `cb`. Under\n // this assurance, we can simply update view state each time `dispatchAction`\n // triggered by user roaming, but not need to add extra code to avoid the\n // state being \"rolled-back\".\n\n if (thisDebounce) {\n timer = setTimeout(exec, thisDelay);\n } else {\n if (diff >= 0) {\n exec();\n } else {\n timer = setTimeout(exec, -diff);\n }\n }\n\n lastCall = currCall;\n };\n /**\r\n * Clear throttle.\r\n * @public\r\n */\n\n\n cb.clear = function () {\n if (timer) {\n clearTimeout(timer);\n timer = null;\n }\n };\n /**\r\n * Enable debounce once.\r\n */\n\n\n cb.debou
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