Code coverage report for src/node-obfuscators/LabeledStatementTransformer.ts

# All files / src/node-obfuscators LabeledStatementTransformer.ts

100% Statements 16/16
100% Branches 2/2
100% Functions 2/2
100% Lines 16/16

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     import * as estraverse from 'estraverse';
    import * as ESTree from 'estree';

    import { ICustomNode } from '../interfaces/custom-nodes/ICustomNode';
    import { IOptions } from '../interfaces/IOptions';

    import { NodeType } from '../enums/NodeType';

    import { AbstractNodeObfuscator } from './AbstractNodeObfuscator';
    import { IdentifierReplacer } from './replacers/IdentifierReplacer';
    import { Node } from '../node/Node';
    import { NodeUtils } from '../node/NodeUtils';

    /**
     * replaces:
     *     label: {
     *          for (var i = 0; i < 1000; i++) {
     *              break label;
     *          }
     *     }
     *
     * on:
     *     _0x12d45f: {
     *          for (var i = 0; i < 1000; i++) {
     *              break _0x12d45f;
     *          }
     *     }
     *
     */
    export class LabeledStatementObfuscator extends AbstractNodeObfuscator {
        /**
         * @type {IdentifierReplacer}
         */
        private identifierReplacer: IdentifierReplacer;

        /**
         * @param nodes
         * @param options
         */
        constructor(nodes: Map <string, ICustomNode>, options: IOptions) {
            super(nodes, options);

            this.identifierReplacer = new IdentifierReplacer(this.nodes, this.options);
        }

        /**
         * @param labeledStatementNode
         */
        public obfuscateNode (labeledStatementNode: ESTree.LabeledStatement): void {
            this.storeLabeledStatementName(labeledStatementNode);
            this.replaceLabeledStatementName(labeledStatementNode);
        }

        /**
         * @param labeledStatementNode
         */
        private storeLabeledStatementName (labeledStatementNode: ESTree.LabeledStatement): void {
            NodeUtils.typedReplace(labeledStatementNode.label, NodeType.Identifier, {
                enter: (node: ESTree.Identifier) => this.identifierReplacer.storeNames(node.name)
            });
        }

        /**
         * @param labeledStatementNode
         */
        private replaceLabeledStatementName (labeledStatementNode: ESTree.LabeledStatement): void {
            estraverse.replace(labeledStatementNode, {
                enter: (node: ESTree.Node, parentNode: ESTree.Node): any => {
                    if (Node.isLabelIdentifierNode(node, parentNode)) {
                        node.name = this.identifierReplacer.replace(node.name);
                    }
                }
            });
        }
    }