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How to use mutatedAst method in stryker-parent

Best JavaScript code snippet using stryker-parent

mutant.ts

Source:mutant.ts

1import { traverse, types } from '@babel/core';2import generate from '@babel/generator';3import { Mutant as ApiMutant, Location, Position, MutantStatus } from '@stryker-mutator/api/core';4import { Offset } from './syntax';5import { deepCloneNode, eqNode } from './util';6export interface Mutable {7  mutatorName: string;8  ignoreReason?: string;9  replacement: types.Node;10}11export class Mutant implements Mutable {12  public readonly replacementCode: string;13  public readonly replacement: types.Node;14  public readonly mutatorName: string;15  public readonly ignoreReason: string | undefined;16  constructor(17    public readonly id: string,18    public readonly fileName: string,19    public readonly original: types.Node,20    specs: Mutable,21    public readonly offset: Offset = { position: 0, line: 0 }22  ) {23    this.replacement = specs.replacement;24    this.mutatorName = specs.mutatorName;25    this.ignoreReason = specs.ignoreReason;26    this.replacementCode = generate(this.replacement).code;27  }28  public toApiMutant(): ApiMutant {29    return {30      fileName: this.fileName,31      id: this.id,32      location: toApiLocation(this.original.loc!, this.offset.line),33      mutatorName: this.mutatorName,34      replacement: this.replacementCode,35      statusReason: this.ignoreReason,36      status: this.ignoreReason ? MutantStatus.Ignored : undefined,37    };38  }39  /**40   * Applies the mutant in (a copy of) the AST, without changing provided AST.41   * Can the tree itself (in which case the replacement is returned),42   * or can be nested in the given tree.43   * @param originalTree The original node, which will be treated as readonly44   */45  public applied<TNode extends types.Node>(originalTree: TNode): TNode {46    if (originalTree === this.original) {47      return this.replacement as TNode;48    } else {49      const mutatedAst = deepCloneNode(originalTree);50      let applied = false;51      const { original, replacement } = this;52      traverse(mutatedAst, {53        noScope: true,54        enter(path) {55          if (eqNode(path.node, original)) {56            path.replaceWith(replacement);57            path.stop();58            applied = true;59          }60        },61      });62      if (!applied) {63        throw new Error(`Could not apply mutant ${JSON.stringify(this.replacement)}.`);64      }65      return mutatedAst;66    }67  }68}69function toApiLocation(source: types.SourceLocation, lineOffset: number): Location {70  return {71    start: toPosition(source.start, lineOffset),72    end: toPosition(source.end, lineOffset),73  };74}75function toPosition(source: Position, lineOffset: number): Position {76  return {77    column: source.column,78    line: source.line + lineOffset - 1, // Stryker works 0-based internally79  };...

Using AI Code Generation

1var mutatedAst = require('stryker-parent').mutatedAst;2var fs = require('fs');3var esprima = require('esprima');4var estraverse = require('estraverse');5var escodegen = require('escodegen');6var ast = esprima.parse(fs.readFileSync('test.js', 'utf8'));7var mutated = mutatedAst(ast, 'test.js');8estraverse.replace(ast, {9    enter: function (node) {10        if (node.type === 'Identifier' && node.name === 'test') {11            node.name = 'test2';12        }13    }14});15console.log(escodegen.generate(ast));16console.log(escodegen.generate(mutated));17var test = 1;18var test = 1;19var test = 1;20var test2 = 1;

Using AI Code Generation

1var stryker = require('stryker-parent');2var ast = stryker.mutatedAst();3console.log(ast);4var stryker = require('stryker-parent');5var ast = stryker.mutatedAst();6console.log(ast);7{ type: 'Program',8   [ { type: 'VariableDeclaration',9        [ { type: 'VariableDeclarator',10            init: [Object] } ],11       kind: 'var' } ],12  sourceType: 'script' }13{ type: 'Program',14   [ { type: 'VariableDeclaration',15        [ { type: 'VariableDeclarator',16            init: [Object] } ],17       kind: 'var' } ],18  sourceType: 'script' }

Using AI Code Generation

1const mutatedAst = require('stryker-parent').mutatedAst;2const ast = mutatedAst();3const mutatedAst = require('./mutated-ast');4exports.mutatedAst = mutatedAst;5const ast = require('stryker-mutator').mutate('test.js');6return ast;

Using AI Code Generation

1const strykerParent = require('stryker-parent');2const mutatedAst = strykerParent.mutatedAst;3const ast = mutatedAst('test.js');4console.log(ast);5const strykerParent = require('stryker-parent');6const mutatedAst = strykerParent.mutatedAst;7const ast = mutatedAst('test.js');8console.log(ast);9const strykerParent = require('stryker-parent');10const mutatedAst = strykerParent.mutatedAst;11const ast = mutatedAst('test.js');12console.log(ast);13const strykerParent = require('stryker-parent');14const mutatedAst = strykerParent.mutatedAst;15const ast = mutatedAst('test.js');16console.log(ast);17const strykerParent = require('stryker-parent');18const mutatedAst = strykerParent.mutatedAst;19const ast = mutatedAst('test.js');20console.log(ast);21const strykerParent = require('stryker-parent');22const mutatedAst = strykerParent.mutatedAst;23const ast = mutatedAst('test.js');24console.log(ast);25const strykerParent = require('stryker-parent');26const mutatedAst = strykerParent.mutatedAst;27const ast = mutatedAst('test.js');28console.log(ast);29const strykerParent = require('stryker-parent');30const mutatedAst = strykerParent.mutatedAst;31const ast = mutatedAst('test.js');32console.log(ast);33const strykerParent = require('stryker-parent');34const mutatedAst = strykerParent.mutatedAst;

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