1/* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import * as ts from "typescript"; 17import { 18 CacheList, 19 getVregisterCache 20} from "../base/vregisterCache"; 21import * as jshelpers from "../jshelpers"; 22import { PandaGen } from "../pandagen"; 23 24const MAX_INT = 2 ** 31 - 1; 25 26export function isInteger(value: number): Boolean { 27 if (!Number.isSafeInteger(value)) { 28 return false; 29 } 30 31 if (value > MAX_INT) { 32 return false; 33 } 34 35 return true; 36} 37 38export function compileNumericLiteral(pandaGen: PandaGen, lit: ts.NumericLiteral): void { 39 let text = jshelpers.getTextOfIdentifierOrLiteral(lit); 40 let value = Number.parseFloat(text); 41 // check whether value is a NaN 42 if (Number.isNaN(value)) { 43 pandaGen.loadAccumulator(lit, getVregisterCache(pandaGen, CacheList.NAN)); 44 } else if (!Number.isFinite(value)) { 45 // check whether value is a Infinity 46 pandaGen.loadAccumulator(lit, getVregisterCache(pandaGen, CacheList.INFINITY)); 47 } else if (isInteger(value)) { 48 // check whether value is a SafeInteger 49 pandaGen.loadAccumulatorInt(lit, value); 50 } else { 51 pandaGen.loadAccumulatorFloat(lit, value); 52 } 53} 54