@nx/angular/src/generators/scam-to-standalone/lib/get-module-metadata-from-ast.js

The Nx Plugin for Angular contains executors, generators, and utilities for managing Angular applications and libraries within an Nx workspace. It provides: - Integration with libraries such as Storybook, Jest, ESLint, Tailwind CSS, Playwright and Cypre

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getModuleMetadataFromAST = getModuleMetadataFromAST;
function getModuleMetadataFromAST(componentAST, componentFileContents) {
    const NGMODULE_CONTENT_SELECTOR = 'ClassDeclaration:has(Decorator > CallExpression:has(Identifier[name=NgModule]))';
    const { tsquery } = require('@phenomnomnominal/tsquery');
    const moduleNodes = tsquery(componentAST, NGMODULE_CONTENT_SELECTOR, {
        visitAllChildren: true,
    });
    const moduleContents = componentFileContents.slice(moduleNodes[0].getStart(), moduleNodes[0].getEnd());
    // verify module is a scam
    const NGMODULE_EXPORTS_SELECTOR = 'ClassDeclaration > Decorator > CallExpression:has(Identifier[name=NgModule]) ObjectLiteralExpression > PropertyAssignment:has(Identifier[name=exports]) ArrayLiteralExpression';
    const NGMODULE_DECLARATIONS_SELECTOR = 'ClassDeclaration > Decorator > CallExpression:has(Identifier[name=NgModule]) ObjectLiteralExpression > PropertyAssignment:has(Identifier[name=declarations]) ArrayLiteralExpression';
    const NGMODULE_IMPORTS_SELECTOR = 'ClassDeclaration > Decorator > CallExpression:has(Identifier[name=NgModule]) ObjectLiteralExpression > PropertyAssignment:has(Identifier[name=imports]) ArrayLiteralExpression';
    const NGMODULE_PROVIDERS_SELECTOR = 'ClassDeclaration > Decorator > CallExpression:has(Identifier[name=NgModule]) ObjectLiteralExpression > PropertyAssignment:has(Identifier[name=providers]) ArrayLiteralExpression';
    const NGMODULE_NAME_SELECTOR = 'ClassDeclaration:has(Decorator > CallExpression:has(Identifier[name=NgModule])) > Identifier';
    const moduleAST = tsquery.ast(moduleContents);
    const importsNode = tsquery(moduleAST, NGMODULE_IMPORTS_SELECTOR, {
        visitAllChildren: true,
    })[0];
    const exportsNode = tsquery(moduleAST, NGMODULE_EXPORTS_SELECTOR, {
        visitAllChildren: true,
    })[0];
    const declarationsNode = tsquery(moduleAST, NGMODULE_DECLARATIONS_SELECTOR, {
        visitAllChildren: true,
    })[0];
    const providersNodes = tsquery(moduleAST, NGMODULE_PROVIDERS_SELECTOR, {
        visitAllChildren: true,
    });
    const exportsArray = moduleContents
        .slice(exportsNode.getStart(), exportsNode.getEnd())
        .replace('[', '')
        .replace(']', '')
        .split(',');
    const importsArray = moduleContents
        .slice(importsNode.getStart(), importsNode.getEnd())
        .replace('[', '')
        .replace(']', '')
        .split(',');
    const declarationsArray = moduleContents
        .slice(declarationsNode.getStart(), declarationsNode.getEnd())
        .replace('[', '')
        .replace(']', '')
        .split(',');
    const providersArray = providersNodes.length > 0
        ? moduleContents
            .slice(providersNodes[0].getStart(), providersNodes[0].getEnd())
            .replace('[', '')
            .replace(']', '')
            .split(',')
        : [];
    const moduleName = tsquery(moduleAST, NGMODULE_NAME_SELECTOR, {
        visitAllChildren: true,
    })[0].getText();
    return {
        moduleNodes,
        exportsArray,
        importsArray,
        declarationsArray,
        providersArray,
        moduleName,
    };
}