All files / src/node-obfuscators LiteralTransformer.ts

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import * as escodegen from 'escodegen';
import * as ESTree from 'estree';
 
import { AbstractNodeObfuscator } from './AbstractNodeObfuscator';
import { BooleanLiteralReplacer } from './replacers/BooleanLiteralReplacer';
import { Node } from '../node/Node';
import { NumberLiteralReplacer } from './replacers/NumberLiteralReplacer';
import { StringLiteralReplacer } from './replacers/StringLiteralReplacer';
 
export class LiteralObfuscator extends AbstractNodeObfuscator {
    /**
     * @param literalNode
     * @param parentNode
     */
    public obfuscateNode (literalNode: ESTree.Literal, parentNode: ESTree.Node): void {
        if (Node.isPropertyNode(parentNode) && parentNode.key === literalNode) {
            return;
        }
 
        let content: string;
 
        switch (typeof literalNode.value) {
            case 'boolean':
                content = new BooleanLiteralReplacer(this.nodes, this.options)
                    .replace(<boolean>literalNode.value);
 
                break;
 
            case 'number':
                content = new NumberLiteralReplacer(this.nodes, this.options)
                    .replace(<number>literalNode.value);
 
                break;
 
            case 'string':
                content = new StringLiteralReplacer(this.nodes, this.options)
                        .replace(<string>literalNode.value);
 
                break;
 
            default:
                return;
        }
 
        literalNode['x-verbatim-property'] = {
            content : content,
            precedence: escodegen.Precedence.Primary
        };
    }
}