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How to use unreachable method in wpt

Best JavaScript code snippet using wpt

regress-648079.js

Source:regress-648079.js

1// Copyright 2016 the V8 project authors. All rights reserved.2// Use of this source code is governed by a BSD-style license that can be3// found in the LICENSE file.4// Flags: --expose-wasm5load("test/mjsunit/wasm/wasm-module-builder.js");6// Non-standard opcodes.7let kSig_s_v = makeSig([], [kWasmS128]);8(function() {9"use asm";10var builder = new WasmModuleBuilder();11builder.addFunction("regression_648079", kSig_s_v)12  .addBody([13    // locals:14    0x00,15    // body:16    kExprI64RemU,17    kExprI64Ctz,18    kExprI64LeU,19    kExprUnreachable,20    kExprUnreachable,21    kExprUnreachable,22    kExprUnreachable,23    kExprI64Ctz,24    kExprI64Ne,25    kExprI64ShrS,26    kExprI64GtS,27    kExprI64RemU,28    kExprUnreachable,29    kExprI64RemU,30    kExprI32Eqz,31    kExprI64LeU,32    kExprDrop,33    kExprF32Add,34    kExprI64Ior,35    kExprF32CopySign,36    kExprI64Ne,37    kExprI64GeS,38    kExprUnreachable,39    kExprF32Trunc,40    kExprF32Trunc,41    kExprUnreachable,42    kExprIf, 10,   // @3243      kExprBlock, 00,   // @3444        kExprBr,   // depth=10945        kExprI64Shl,46        kExprI64LeU,47        kExprI64GeS,48        kExprI64Clz,49        kExprF32Min,50        kExprF32Eq,51        kExprF32Trunc,52        kExprF32Trunc,53        kExprF32Trunc,54        kExprUnreachable,55        kExprI32Const,56        kExprUnreachable,57        kExprBr,   // depth=10158        kExprF32Div,59        kExprI64GtU,60        kExprI64GeS,61        kExprI64Clz,62        kExprSelect,63        kExprI64GtS,64        kExprI64RemU,65        kExprI64LeU,66        kExprI64Shl,67        kExprI64Ctz,68        kExprLoop, 01,   // @63 i3269        kExprElse,   // @6570          kExprI64LeU,71          kExprI64RemU,72          kExprI64Ne,73          kExprI64GeS,74          kExprI32Const,75          kExprI64GtS,76          kExprI64LoadMem32U,77          kExprI64Clz,78          kExprI64Shl,79          kExprI64Ne,80          kExprI64ShrS,81          kExprI64GtS,82          kExprI64DivU,83          kExprI64Ne,84          kExprI64GtS,85          kExprI64Ne,86          kExprI64Popcnt,87          kExprI64DivU,88          kExprI64DivU,89          kExprSelect,90          kExprI64Ctz,91          kExprI64Popcnt,92          kExprI64RemU,93          kExprI64Clz,94          kExprF64Sub,95          kExprF32Trunc,96          kExprF32Trunc,97          kExprI64RemU,98          kExprI64Ctz,99          kExprI64LeU,100          kExprUnreachable,101          kExprUnreachable,102          kExprUnreachable,103          kExprBrIf,   // depth=116104          kExprF32Min,105          kExprI64GtU,106          kExprBlock, 01,   // @107 i32107            kExprLocalTee,108            kExprBlock, 01,   // @111 i32109              kExprBlock, 01,   // @113 i32110                kExprBlock, 01,   // @115 i32111                  kExprBlock, 01,   // @117 i32112                    kExprBlock, 01,   // @119 i32113                      kExprBlock, 01,   // @121 i32114                        kExprBlock, 01,   // @123 i32115                          kExprBlock, 88,   // @125116                            kExprF32Trunc,117                            kExprF32Trunc,118                            kExprF32Trunc,119                            kExprUnreachable,120                            kExprLoop, 40,   // @131121                              kExprUnreachable,122                              kExprUnreachable,123                              kExprI32Add,124                              kExprBlock, 05,   // @136125                                kExprUnreachable,126                                kExprIf, 02,   // @139 i64127                                  kExprBlock, 01,   // @141 i32128                                    kExprBrIf,   // depth=16129                                    kExprLoop, 00,   // @145130                                      kExprUnreachable,131                                      kExprUnreachable,132                                      kExprReturn,133                                      kExprUnreachable,134                                      kExprUnreachable,135                                      kExprUnreachable,136                                      kExprI64LoadMem16U,137                                      kExprUnreachable,138                                      kExprUnreachable,139                                      kExprUnreachable,140                                      kExprUnreachable,141                                      kExprUnreachable,142                                      kExprNop,143                                      kExprBr,   // depth=1144                                    kExprElse,   // @164145                                      kExprF32Trunc,146                                      kExprI32Add,147                                      kExprCallIndirect,   // sig #1148                                      kExprUnreachable,149                                      kExprUnreachable,150                                      kExprUnreachable,151                                      kExprBlock, 00,   // @172152                                        kExprI64RemU,153                                        kExprI64Ctz,154                                        kExprI64LeU,155                                        kExprUnreachable,156                                        kExprUnreachable,157                                        kExprUnreachable,158                                        kExprUnreachable,159                                        kExprUnreachable,160                                        kExprDrop,161                                        kExprI64Popcnt,162                                        kExprF32Min,163                                        kExprUnreachable,164                                        kExprF64Sub,165                                        kExprI32Const,166                                        kExprUnreachable,167                                        kExprLocalGet,168                                        kExprI64LoadMem32U,169                                        kExprUnreachable,170                                        kExprI64RemU,171                                        kExprI32Eqz,172                                        kExprI64LeU,173                                        kExprDrop,174                                        kExprF32Add,175                                        kExprI64Ior,176                                        kExprF32CopySign,177                                        kExprI64Ne,178                                        kExprI64GeS,179                                        kExprUnreachable,180                                        kExprF32Trunc,181                                        kExprF32Trunc,182                                        kExprUnreachable,183                                        kExprIf, 10,   // @216184                                          kExprBlock, 00,   // @218185                                            kExprBr,   // depth=109186                                            kExprI64Shl,187                                            kExprI64LeU,188                                            kExprI64GeS,189                                            kExprI64Clz,190                                            kExprF32Min,191                                            kExprF32Eq,192                                            kExprF32Trunc,193                                            kExprF32Trunc,194                                            kExprF32Trunc,195                                            kExprUnreachable,196                                            kExprF64Min,197                                            kExprI32Const,198                                            kExprBr,   // depth=101199                                            kExprF32Div,200                                            kExprI64GtU,201                                            kExprI64GeS,202                                            kExprI64Clz,203                                            kExprI64Popcnt,204                                            kExprF64Lt,205                                            kExprF32Trunc,206                                            kExprF32Trunc,207                                            kExprF32Trunc,208                                            kExprUnreachable,209                                            kExprLoop, 01,   // @247 i32210                                            kExprElse,   // @249211                                              kExprI64LeU,212                                              kExprI64RemU,213                                              kExprI64Ne,214                                              kExprI64GeS,215                                              kExprI32Const,216                                              kExprBlock, 01,   // @256 i32217                                                kExprBlock, 01,   // @258 i32218                                                  kExprBlock, 01,   // @260 i32219                                                    kExprBlock, 01,   // @262 i32220                                                      kExprBlock, 01,   // @264 i32221                                                        kExprF32Ge,222                                                        kExprF32Trunc,223                                                        kExprF32Trunc,224                                                        kExprF32Trunc,225                                                        kExprUnreachable,226                                                        kExprLoop, 40,   // @271227                                                          kExprUnreachable,228                                                          kExprUnreachable,229                                                          kExprI32Add,230                                                          kExprBlock, 01,   // @276 i32231                                                            kExprUnreachable,232                                                            kExprIf, 02,   // @279 i64233                                                              kExprBlock, 00,   // @281234                                                                kExprBrIf,   // depth=16235                                                                kExprLoop, 00,   // @285236                                                                  kExprUnreachable,237                                                                  kExprUnreachable,238                                                                  kExprReturn,239                                                                  kExprUnreachable,240                                                                  kExprUnreachable,241                                                                  kExprUnreachable,242                                                                  kExprI64LoadMem16U,243                                                                  kExprUnreachable,244                                                                  kExprUnreachable,245                                                                  kExprUnreachable,246                                                                  kExprUnreachable,247                                                                  kExprUnreachable,248                                                                  kExprNop,249                                                                  kExprBr,   // depth=1250                                                                kExprElse,   // @304251                                                                  kExprF32Trunc,252                                                                  kExprI32Add,253                                                                  kExprCallIndirect,   // sig #1254                                                                  kExprUnreachable,255                                                                  kExprUnreachable,256                                                                  kExprUnreachable,257                                                                  kExprBlock, 00,   // @312258                                                                    kExprI64RemU,259                                                                    kExprI64Ctz,260                                                                    kExprI64LeU,261                                                                    kExprUnreachable,262                                                                    kExprUnreachable,263                                                                    kExprUnreachable,264                                                                    kExprDrop,265                                                                    kExprI64Popcnt,266                                                                    kExprF32Min,267                                                                    kExprUnreachable,268                                                                    kExprF64Sub,269                                                                    kExprI32Const,270                                                                    kExprUnreachable,271                                                                    kExprLocalGet,272                                                                    kExprI64LoadMem32U,273                                                                    kExprUnreachable,274                                                                    kExprUnreachable,275                                                                    kExprNop,276                                                                    kExprBr,   // depth=1277                                                                  kExprElse,   // @348278                                                                    kExprF32Trunc,279                                                                    kExprI32Add,280                                                                    kExprCallIndirect,   // sig #1281                                                                    kExprUnreachable,282                                                                    kExprUnreachable,283                                                                    kExprUnreachable,284                                                                    kExprBlock, 00,   // @356285                                                                    kExprI64RemU,286                                                                    kExprI64Ctz,287                                                                    kExprI64LeU,288                                                                    kExprUnreachable,289                                                                    kExprUnreachable,290                                                                    kExprUnreachable,291                                                                    kExprDrop,292                                                                    kExprI64Popcnt,293                                                                    kExprF32Min,294                                                                    kExprUnreachable,295                                                                    kExprF64Sub,296                                                                    kExprI32Const,297                                                                    kExprUnreachable,298                                                                    kExprLocalGet,299                                                                    kExprI64LoadMem32U,300                                                                    kExprF64Min,301                                                                    kExprF64Min,302                                                                    kExprF64Min,303                                                                    kExprF64Min,304                                                                    kExprF64Min,305                                                                    kExprF32Trunc,306                                                                    kExprF32Trunc,307                                                                    kExprF32Trunc,308                                                                    kExprUnreachable,309                                                                    kExprF64Min,310                                                                    kExprF64Min,311                                                                    kExprF64Min,312                                                                    kExprF64Min,313                                                                    kExprF64Min,314                                                                    kExprF64Min,315                                                                    kExprF64Min,316                                                                    kExprF64Min,317                                                                    kExprF64Min,318                                                                    kExprF64Min,319            ])320            .exportFunc();321assertThrows(function() { builder.instantiate(); });...

no-unreachable.js

Source:no-unreachable.js

1/**2 * @fileoverview Checks for unreachable code due to return, throws, break, and continue.3 * @author Joel Feenstra4 */5"use strict";6//------------------------------------------------------------------------------7// Helpers8//------------------------------------------------------------------------------9/**10 * Checks whether or not a given variable declarator has the initializer.11 * @param {ASTNode} node A VariableDeclarator node to check.12 * @returns {boolean} `true` if the node has the initializer.13 */14function isInitialized(node) {15    return Boolean(node.init);16}17/**18 * Checks whether or not a given code path segment is unreachable.19 * @param {CodePathSegment} segment A CodePathSegment to check.20 * @returns {boolean} `true` if the segment is unreachable.21 */22function isUnreachable(segment) {23    return !segment.reachable;24}25/**26 * The class to distinguish consecutive unreachable statements.27 */28class ConsecutiveRange {29    constructor(sourceCode) {30        this.sourceCode = sourceCode;31        this.startNode = null;32        this.endNode = null;33    }34    /**35     * The location object of this range.36     * @type {Object}37     */38    get location() {39        return {40            start: this.startNode.loc.start,41            end: this.endNode.loc.end42        };43    }44    /**45     * `true` if this range is empty.46     * @type {boolean}47     */48    get isEmpty() {49        return !(this.startNode && this.endNode);50    }51    /**52     * Checks whether the given node is inside of this range.53     * @param {ASTNode|Token} node The node to check.54     * @returns {boolean} `true` if the node is inside of this range.55     */56    contains(node) {57        return (58            node.range[0] >= this.startNode.range[0] &&59            node.range[1] <= this.endNode.range[1]60        );61    }62    /**63     * Checks whether the given node is consecutive to this range.64     * @param {ASTNode} node The node to check.65     * @returns {boolean} `true` if the node is consecutive to this range.66     */67    isConsecutive(node) {68        return this.contains(this.sourceCode.getTokenBefore(node));69    }70    /**71     * Merges the given node to this range.72     * @param {ASTNode} node The node to merge.73     * @returns {void}74     */75    merge(node) {76        this.endNode = node;77    }78    /**79     * Resets this range by the given node or null.80     * @param {ASTNode|null} node The node to reset, or null.81     * @returns {void}82     */83    reset(node) {84        this.startNode = this.endNode = node;85    }86}87//------------------------------------------------------------------------------88// Rule Definition89//------------------------------------------------------------------------------90module.exports = {91    meta: {92        type: "problem",93        docs: {94            description: "disallow unreachable code after `return`, `throw`, `continue`, and `break` statements",95            category: "Possible Errors",96            recommended: true,97            url: "https://eslint.org/docs/rules/no-unreachable"98        },99        schema: []100    },101    create(context) {102        let currentCodePath = null;103        const range = new ConsecutiveRange(context.getSourceCode());104        /**105         * Reports a given node if it's unreachable.106         * @param {ASTNode} node A statement node to report.107         * @returns {void}108         */109        function reportIfUnreachable(node) {110            let nextNode = null;111            if (node && currentCodePath.currentSegments.every(isUnreachable)) {112                // Store this statement to distinguish consecutive statements.113                if (range.isEmpty) {114                    range.reset(node);115                    return;116                }117                // Skip if this statement is inside of the current range.118                if (range.contains(node)) {119                    return;120                }121                // Merge if this statement is consecutive to the current range.122                if (range.isConsecutive(node)) {123                    range.merge(node);124                    return;125                }126                nextNode = node;127            }128            /*129             * Report the current range since this statement is reachable or is130             * not consecutive to the current range.131             */132            if (!range.isEmpty) {133                context.report({134                    message: "Unreachable code.",135                    loc: range.location,136                    node: range.startNode137                });138            }139            // Update the current range.140            range.reset(nextNode);141        }142        return {143            // Manages the current code path.144            onCodePathStart(codePath) {145                currentCodePath = codePath;146            },147            onCodePathEnd() {148                currentCodePath = currentCodePath.upper;149            },150            // Registers for all statement nodes (excludes FunctionDeclaration).151            BlockStatement: reportIfUnreachable,152            BreakStatement: reportIfUnreachable,153            ClassDeclaration: reportIfUnreachable,154            ContinueStatement: reportIfUnreachable,155            DebuggerStatement: reportIfUnreachable,156            DoWhileStatement: reportIfUnreachable,157            ExpressionStatement: reportIfUnreachable,158            ForInStatement: reportIfUnreachable,159            ForOfStatement: reportIfUnreachable,160            ForStatement: reportIfUnreachable,161            IfStatement: reportIfUnreachable,162            ImportDeclaration: reportIfUnreachable,163            LabeledStatement: reportIfUnreachable,164            ReturnStatement: reportIfUnreachable,165            SwitchStatement: reportIfUnreachable,166            ThrowStatement: reportIfUnreachable,167            TryStatement: reportIfUnreachable,168            VariableDeclaration(node) {169                if (node.kind !== "var" || node.declarations.some(isInitialized)) {170                    reportIfUnreachable(node);171                }172            },173            WhileStatement: reportIfUnreachable,174            WithStatement: reportIfUnreachable,175            ExportNamedDeclaration: reportIfUnreachable,176            ExportDefaultDeclaration: reportIfUnreachable,177            ExportAllDeclaration: reportIfUnreachable,178            "Program:exit"() {179                reportIfUnreachable();180            }181        };182    }...

Using AI Code Generation

1const wpt = require('webpagetest');2const wpt = new WebPageTest('www.webpagetest.org');3  if (err) return console.error(err);4  console.log('Test status:', data.statusText);5  wpt.getTestStatus(data.data.testId, function(err, data) {6    if (err) return console.error(err);7    console.log('Test status:', data.statusText);8  });9});

Using AI Code Generation

1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org');3var options = {4};5    if (err) {6        console.log(err);7    } else {8        console.log(data);9    }10});11{ statusCode: 500,

Using AI Code Generation

1var wpt = require('wpt');2wpt = new wpt('API_KEY');3  if (err) {4    console.log(err);5  } else {6    console.log(data);7  }8});9var wpt = require('wpt');10wpt = new wpt('API_KEY');11wpt.testinfo('TEST_ID', function(err, data) {12  if (err) {13    console.log(err);14  } else {15    console.log(data);16  }17});18var wpt = require('wpt');19wpt = new wpt('API_KEY');20wpt.getLocations(function(err, data) {21  if (err) {22    console.log(err);23  } else {24    console.log(data);25  }26});27var wpt = require('wpt');28wpt = new wpt('API_KEY');29wpt.getTesters(function(err, data) {30  if (err) {31    console.log(err);32  } else {33    console.log(data);34  }35});36var wpt = require('wpt');37wpt = new wpt('API_KEY');38wpt.getLocations(function(err, data) {39  if (err) {40    console.log(err);41  } else {42    console.log(data);43  }44});45var wpt = require('wpt');46wpt = new wpt('API_KEY');47wpt.getLocations(function(err, data) {48  if (err) {49    console.log(err);50  } else {51    console.log(data);52  }53});54var wpt = require('wpt');55wpt = new wpt('API_KEY');56wpt.getLocations(function(err, data) {57  if (err) {58    console.log(err);59  } else {60    console.log(data);61  }62});

Using AI Code Generation

1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org','A.4b4e6b7c6d1d1c9c9b9f9b9e6b6d6b6d');3wpt.getLocations(function(err, data) {4  if (err) return console.error(err);5  console.log(data.data);6});7    at Request._callback (/home/ubuntu/test/node_modules/webpagetest/lib/webpagetest.js:217:9)8    at Request.self.callback (/home/ubuntu/test/node_modules/request/request.js:186:22)9    at Request.emit (events.js:107:17)10    at Request.<anonymous> (/home/ubuntu/test/node_modules/request/request.js:1161:10)11    at Request.emit (events.js:107:17)12    at IncomingMessage.<anonymous> (/home/ubuntu/test/node_modules/request/request.js:1083:12)13    at IncomingMessage.emit (events.js:107:17)14    at process._tickCallback (node.js:355:11)

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