Paul Gschwendtner
ccbb913f4b
Adds the `override` keyword to the `compiler-cli` sources to ensure compatibility with `noImplicitOverride`. PR Close #42512
76 lines
3.0 KiB
TypeScript
76 lines
3.0 KiB
TypeScript
/**
|
|
* @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
|
|
*/
|
|
import {Statement} from '@angular/compiler';
|
|
import MagicString from 'magic-string';
|
|
import * as ts from 'typescript';
|
|
|
|
import {ImportManager, translateStatement} from '../../../src/ngtsc/translator';
|
|
import {CompiledClass} from '../analysis/types';
|
|
import {getContainingStatement} from '../host/esm2015_host';
|
|
|
|
import {EsmRenderingFormatter} from './esm_rendering_formatter';
|
|
|
|
/**
|
|
* A RenderingFormatter that works with files that use ECMAScript Module `import` and `export`
|
|
* statements, but instead of `class` declarations it uses ES5 `function` wrappers for classes.
|
|
*/
|
|
export class Esm5RenderingFormatter extends EsmRenderingFormatter {
|
|
/**
|
|
* Add the definitions, directly before the return statement, inside the IIFE of each decorated
|
|
* class.
|
|
*/
|
|
override addDefinitions(output: MagicString, compiledClass: CompiledClass, definitions: string):
|
|
void {
|
|
const classSymbol = this.host.getClassSymbol(compiledClass.declaration);
|
|
if (!classSymbol) {
|
|
throw new Error(
|
|
`Compiled class "${compiledClass.name}" in "${
|
|
compiledClass.declaration.getSourceFile()
|
|
.fileName}" does not have a valid syntax.\n` +
|
|
`Expected an ES5 IIFE wrapped function. But got:\n` +
|
|
compiledClass.declaration.getText());
|
|
}
|
|
const declarationStatement =
|
|
getContainingStatement(classSymbol.implementation.valueDeclaration);
|
|
|
|
const iifeBody = declarationStatement.parent;
|
|
if (!iifeBody || !ts.isBlock(iifeBody)) {
|
|
throw new Error(`Compiled class declaration is not inside an IIFE: ${compiledClass.name} in ${
|
|
compiledClass.declaration.getSourceFile().fileName}`);
|
|
}
|
|
|
|
const returnStatement = iifeBody.statements.find(ts.isReturnStatement);
|
|
if (!returnStatement) {
|
|
throw new Error(`Compiled class wrapper IIFE does not have a return statement: ${
|
|
compiledClass.name} in ${compiledClass.declaration.getSourceFile().fileName}`);
|
|
}
|
|
|
|
const insertionPoint = returnStatement.getFullStart();
|
|
output.appendLeft(insertionPoint, '\n' + definitions);
|
|
}
|
|
|
|
/**
|
|
* Convert a `Statement` to JavaScript code in a format suitable for rendering by this formatter.
|
|
*
|
|
* @param stmt The `Statement` to print.
|
|
* @param sourceFile A `ts.SourceFile` that provides context for the statement. See
|
|
* `ts.Printer#printNode()` for more info.
|
|
* @param importManager The `ImportManager` to use for managing imports.
|
|
*
|
|
* @return The JavaScript code corresponding to `stmt` (in the appropriate format).
|
|
*/
|
|
override printStatement(stmt: Statement, sourceFile: ts.SourceFile, importManager: ImportManager):
|
|
string {
|
|
const node = translateStatement(
|
|
stmt, importManager, {downlevelTaggedTemplates: true, downlevelVariableDeclarations: true});
|
|
const code = this.printer.printNode(ts.EmitHint.Unspecified, node, sourceFile);
|
|
|
|
return code;
|
|
}
|
|
}
|