Code coverage report for src/custom-nodes/control-flow-flattening-nodes/BlockStatementControlFlowFlatteningNode.ts

# All files / src/custom-nodes/control-flow-flattening-nodes BlockStatementControlFlowFlatteningNode.ts

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100% Branches 0/0
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     import { injectable, inject } from 'inversify';
    import { ServiceIdentifiers } from '../../container/ServiceIdentifiers';

    import * as ESTree from 'estree';

    import { TStatement } from '../../types/node/TStatement';

    import { IOptions } from '../../interfaces/options/IOptions';

    import { initializable } from '../../decorators/Initializable';

    import { AbstractCustomNode } from '../AbstractCustomNode';
    import { Nodes } from '../../node/Nodes';
    import { NodeUtils } from '../../node/NodeUtils';
    import { RandomGeneratorUtils } from '../../utils/RandomGeneratorUtils';

    @injectable()
    export class BlockStatementControlFlowFlatteningNode extends AbstractCustomNode {
        /**
         * @type {ESTree.Statement[]}
         */
        @initializable()
        private blockStatementBody: ESTree.Statement[];

        /**
         * @type {number[]}
         */
        @initializable()
        private originalKeysIndexesInShuffledArray: number[];

        /**
         * @type {number[]}
         */
        @initializable()
        private shuffledKeys: number[];

        /**
         * @param options
         */
        constructor (
            @inject(ServiceIdentifiers.IOptions) options: IOptions
        ) {
            super(options);
        }

        /***
         * @param blockStatementBody
         * @param shuffledKeys
         * @param originalKeysIndexesInShuffledArray
         */
        public initialize (
            blockStatementBody: ESTree.Statement[],
            shuffledKeys: number[],
            originalKeysIndexesInShuffledArray: number[]
        ): void {
            this.blockStatementBody = blockStatementBody;
            this.shuffledKeys = shuffledKeys;
            this.originalKeysIndexesInShuffledArray = originalKeysIndexesInShuffledArray;
        }

        /**
         * @returns {TStatement[]}
         */
        protected getNodeStructure (): TStatement[] {
            const controllerIdentifierName: string = RandomGeneratorUtils.getRandomString(3);
            const indexIdentifierName: string = RandomGeneratorUtils.getRandomString(3);
            const structure: ESTree.BlockStatement = Nodes.getBlockStatementNode([
                Nodes.getVariableDeclarationNode([
                    Nodes.getVariableDeclaratorNode(
                        Nodes.getIdentifierNode(controllerIdentifierName),
                        Nodes.getCallExpressionNode(
                            Nodes.getMemberExpressionNode(
                                Nodes.getLiteralNode(
                                    this.originalKeysIndexesInShuffledArray.join('|')
                                ),
                                Nodes.getIdentifierNode('split')
                            ),
                            [
                                Nodes.getLiteralNode('|')
                            ]
                        )
                    ),
                    Nodes.getVariableDeclaratorNode(
                        Nodes.getIdentifierNode(indexIdentifierName),
                        Nodes.getLiteralNode(0)
                    )
                ]),
                Nodes.getWhileStatementNode(
                    Nodes.getLiteralNode(true),
                    Nodes.getBlockStatementNode([
                        Nodes.getSwitchStatementNode(
                            Nodes.getMemberExpressionNode(
                                Nodes.getIdentifierNode(controllerIdentifierName),
                                Nodes.getUpdateExpressionNode(
                                    '++',
                                    Nodes.getIdentifierNode(indexIdentifierName)
                                ),
                                true
                            ),
                            this.shuffledKeys.map((key: number, index: number) => {
                                return Nodes.getSwitchCaseNode(
                                    Nodes.getLiteralNode(String(index)),
                                    [
                                        this.blockStatementBody[key],
                                        Nodes.getContinueStatement()
                                    ]
                                );
                            })
                        ),
                        Nodes.getBreakStatement()
                    ])
                )
            ]);

            NodeUtils.parentize(structure);

            return [structure];
        }
    }