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fix(@schematics/angular): remove leading comments when removing `core… #13528

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merged 1 commit into from
Jan 30, 2019
Merged

fix(@schematics/angular): remove leading comments when removing `core… #13528

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11 changes: 4 additions & 7 deletions packages/schematics/angular/migrations/update-7/polyfill-metadata.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -29,18 +29,15 @@ function _removeReflectFromPolyfills(tree: Tree, path: string) {
const recorder = tree.beginUpdate(path);

const sourceFile = ts.createSourceFile(path, source.toString(), ts.ScriptTarget.Latest);
const imports = (
sourceFile.statements
.filter(s => s.kind === ts.SyntaxKind.ImportDeclaration) as ts.ImportDeclaration[]
);
const imports = sourceFile.statements
.filter(s => s.kind === ts.SyntaxKind.ImportDeclaration) as ts.ImportDeclaration[];

for (const i of imports) {
const module = i.moduleSpecifier.kind == ts.SyntaxKind.StringLiteral
&& (i.moduleSpecifier as ts.StringLiteral).text;
const module = ts.isStringLiteral(i.moduleSpecifier) && i.moduleSpecifier.text;

switch (module) {
case 'core-js/es7/reflect':
recorder.remove(i.getStart(sourceFile), i.getWidth(sourceFile));
recorder.remove(i.getFullStart(), i.getFullWidth());
break;
}
}
Expand Down
32 changes: 30 additions & 2 deletions packages/schematics/angular/migrations/update-7/polyfill-metadata_spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,34 @@ import 'web-animations-js'; // Run \`npm install --save web-animations-js\`.
import 'zone.js/dist/zone'; // Included with Angular CLI.
`;

const newPolyfills = `
/** IE9, IE10 and IE11 requires all of the following polyfills. **/
// import 'core-js/es6/symbol';
// import 'core-js/es6/object';
import 'core-js/es6/function';
import 'core-js/es6/parse-int';
// import 'core-js/es6/parse-float';
import 'core-js/es6/number';
// import 'core-js/es6/math';
// import 'core-js/es6/string';
import 'core-js/es6/date';
// import 'core-js/es6/array';
// import 'core-js/es6/regexp';

/** IE10 and IE11 requires the following for the Reflect API. */
import 'core-js/es6/reflect';

import 'web-animations-js'; // Run \`npm install --save web-animations-js\`.

(window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
(window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick

/***************************************************************************************************
* Zone JS is required by default for Angular itself.
*/
import 'zone.js/dist/zone'; // Included with Angular CLI.
`;


describe('polyfillMetadataRule', () => {
const schematicRunner = new SchematicTestRunner(
Expand Down Expand Up @@ -84,7 +112,7 @@ describe('polyfillMetadataRule', () => {
const tree2 = await schematicRunner.runSchematicAsync('migration-03', {}, tree.branch())
.toPromise();

expect(tree2.readContent(polyfillPath)).not.toMatch(/import .*es7.*reflect.*;/);
expect(tree2.readContent(polyfillPath)).toBe(newPolyfills);
});

it('should work as expected for a project with a root', async () => {
Expand All @@ -96,6 +124,6 @@ describe('polyfillMetadataRule', () => {
const tree2 = await schematicRunner.runSchematicAsync('migration-03', {}, tree.branch())
.toPromise();

expect(tree2.readContent(polyfillPath)).not.toMatch(/import .*es7.*reflect.*;/);
expect(tree2.readContent(polyfillPath)).toBe(newPolyfills);
});
});