@angular/core
Version:
Angular - the core framework
105 lines • 16.8 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define("@angular/core/schematics/migrations/undecorated-classes-with-decorated-fields", ["require", "exports", "@angular-devkit/schematics", "path", "typescript", "@angular/core/schematics/utils/project_tsconfig_paths", "@angular/core/schematics/utils/typescript/compiler_host", "@angular/core/schematics/migrations/undecorated-classes-with-decorated-fields/transform"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const schematics_1 = require("@angular-devkit/schematics");
const path_1 = require("path");
const ts = require("typescript");
const project_tsconfig_paths_1 = require("@angular/core/schematics/utils/project_tsconfig_paths");
const compiler_host_1 = require("@angular/core/schematics/utils/typescript/compiler_host");
const transform_1 = require("@angular/core/schematics/migrations/undecorated-classes-with-decorated-fields/transform");
/**
* Migration that adds an Angular decorator to classes that have Angular field decorators.
* https://hackmd.io/vuQfavzfRG6KUCtU7oK_EA
*/
function default_1() {
return (tree, ctx) => {
const { buildPaths, testPaths } = project_tsconfig_paths_1.getProjectTsConfigPaths(tree);
const basePath = process.cwd();
const allPaths = [...buildPaths, ...testPaths];
const failures = [];
if (!allPaths.length) {
throw new schematics_1.SchematicsException('Could not find any tsconfig file. Cannot add an Angular decorator to undecorated classes.');
}
for (const tsconfigPath of allPaths) {
failures.push(...runUndecoratedClassesMigration(tree, tsconfigPath, basePath));
}
if (failures.length) {
ctx.logger.info('Could not migrate all undecorated classes that use Angular features.');
ctx.logger.info('Please manually fix the following failures:');
failures.forEach(message => ctx.logger.warn(`⮑ ${message}`));
}
};
}
exports.default = default_1;
function runUndecoratedClassesMigration(tree, tsconfigPath, basePath) {
const failures = [];
const { program } = compiler_host_1.createMigrationProgram(tree, tsconfigPath, basePath);
const typeChecker = program.getTypeChecker();
const sourceFiles = program.getSourceFiles().filter(sourceFile => compiler_host_1.canMigrateFile(basePath, sourceFile, program));
const updateRecorders = new Map();
const transform = new transform_1.UndecoratedClassesWithDecoratedFieldsTransform(typeChecker, getUpdateRecorder);
// Migrate all source files in the project.
transform.migrate(sourceFiles).forEach(({ node, message }) => {
const nodeSourceFile = node.getSourceFile();
const relativeFilePath = path_1.relative(basePath, nodeSourceFile.fileName);
const { line, character } = ts.getLineAndCharacterOfPosition(node.getSourceFile(), node.getStart());
failures.push(`${relativeFilePath}@${line + 1}:${character + 1}: ${message}`);
});
// Record the changes collected in the import manager.
transform.recordChanges();
// Walk through each update recorder and commit the update. We need to commit the
// updates in batches per source file as there can be only one recorder per source
// file in order to avoid shifted character offsets.
updateRecorders.forEach(recorder => recorder.commitUpdate());
return failures;
/** Gets the update recorder for the specified source file. */
function getUpdateRecorder(sourceFile) {
if (updateRecorders.has(sourceFile)) {
return updateRecorders.get(sourceFile);
}
const treeRecorder = tree.beginUpdate(path_1.relative(basePath, sourceFile.fileName));
const recorder = {
addClassTodo(node, message) {
treeRecorder.insertRight(node.getStart(), `// TODO: ${message}\n`);
},
addClassDecorator(node, text) {
// New imports should be inserted at the left while decorators should be inserted
// at the right in order to ensure that imports are inserted before the decorator
// if the start position of import and decorator is the source file start.
treeRecorder.insertRight(node.getStart(), `${text}\n`);
},
addNewImport(start, importText) {
// New imports should be inserted at the left while decorators should be inserted
// at the right in order to ensure that imports are inserted before the decorator
// if the start position of import and decorator is the source file start.
treeRecorder.insertLeft(start, importText);
},
updateExistingImport(namedBindings, newNamedBindings) {
treeRecorder.remove(namedBindings.getStart(), namedBindings.getWidth());
treeRecorder.insertRight(namedBindings.getStart(), newNamedBindings);
},
commitUpdate() {
tree.commitUpdate(treeRecorder);
}
};
updateRecorders.set(sourceFile, recorder);
return recorder;
}
}
});
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Cannot add an Angular decorator to undecorated classes.');\n    }\n\n    for (const tsconfigPath of allPaths) {\n      failures.push(...runUndecoratedClassesMigration(tree, tsconfigPath, basePath));\n    }\n\n    if (failures.length) {\n      ctx.logger.info('Could not migrate all undecorated classes that use Angular features.');\n      ctx.logger.info('Please manually fix the following failures:');\n      failures.forEach(message => ctx.logger.warn(`⮑   ${message}`));\n    }\n  };\n}\n\nfunction runUndecoratedClassesMigration(\n    tree: Tree, tsconfigPath: string, basePath: string): string[] {\n  const failures: string[] = [];\n  const {program} = createMigrationProgram(tree, tsconfigPath, basePath);\n  const typeChecker = program.getTypeChecker();\n  const sourceFiles =\n      program.getSourceFiles().filter(sourceFile => canMigrateFile(basePath, sourceFile, program));\n  const updateRecorders = new Map<ts.SourceFile, UpdateRecorder>();\n  const transform =\n      new UndecoratedClassesWithDecoratedFieldsTransform(typeChecker, getUpdateRecorder);\n\n  // Migrate all source files in the project.\n  transform.migrate(sourceFiles).forEach(({node, message}) => {\n    const nodeSourceFile = node.getSourceFile();\n    const relativeFilePath = relative(basePath, nodeSourceFile.fileName);\n    const {line, character} =\n        ts.getLineAndCharacterOfPosition(node.getSourceFile(), node.getStart());\n    failures.push(`${relativeFilePath}@${line + 1}:${character + 1}: ${message}`);\n  });\n\n  // Record the changes collected in the import manager.\n  transform.recordChanges();\n\n  // Walk through each update recorder and commit the update. We need to commit the\n  // updates in batches per source file as there can be only one recorder per source\n  // file in order to avoid shifted character offsets.\n  updateRecorders.forEach(recorder => recorder.commitUpdate());\n\n  return failures;\n\n  /** Gets the update recorder for the specified source file. */\n  function getUpdateRecorder(sourceFile: ts.SourceFile): UpdateRecorder {\n    if (updateRecorders.has(sourceFile)) {\n      return updateRecorders.get(sourceFile)!;\n    }\n    const treeRecorder = tree.beginUpdate(relative(basePath, sourceFile.fileName));\n    const recorder: UpdateRecorder = {\n      addClassTodo(node: ts.ClassDeclaration, message: string) {\n        treeRecorder.insertRight(node.getStart(), `// TODO: ${message}\\n`);\n      },\n      addClassDecorator(node: ts.ClassDeclaration, text: string) {\n        // New imports should be inserted at the left while decorators should be inserted\n        // at the right in order to ensure that imports are inserted before the decorator\n        // if the start position of import and decorator is the source file start.\n        treeRecorder.insertRight(node.getStart(), `${text}\\n`);\n      },\n      addNewImport(start: number, importText: string) {\n        // New imports should be inserted at the left while decorators should be inserted\n        // at the right in order to ensure that imports are inserted before the decorator\n        // if the start position of import and decorator is the source file start.\n        treeRecorder.insertLeft(start, importText);\n      },\n      updateExistingImport(namedBindings: ts.NamedImports, newNamedBindings: string) {\n        treeRecorder.remove(namedBindings.getStart(), namedBindings.getWidth());\n        treeRecorder.insertRight(namedBindings.getStart(), newNamedBindings);\n      },\n      commitUpdate() {\n        tree.commitUpdate(treeRecorder);\n      }\n    };\n    updateRecorders.set(sourceFile, recorder);\n    return recorder;\n  }\n}\n"]}