forked from angular/angular
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathcodegen.ts
More file actions
190 lines (175 loc) · 8.05 KB
/
Copy pathcodegen.ts
File metadata and controls
190 lines (175 loc) · 8.05 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
/**
* @license
* Copyright Google Inc. 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
*/
/**
* Transform template html and css into executable code.
* Intended to be used in a build step.
*/
import * as compiler from '@angular/compiler';
import {Component, NgModule, ViewEncapsulation} from '@angular/core';
import {AngularCompilerOptions, NgcCliOptions} from '@angular/tsc-wrapped';
import * as path from 'path';
import * as ts from 'typescript';
import {PathMappedReflectorHost} from './path_mapped_reflector_host';
import {CompileMetadataResolver, DirectiveNormalizer, DomElementSchemaRegistry, HtmlParser, Lexer, NgModuleCompiler, Parser, StyleCompiler, TemplateParser, TypeScriptEmitter, ViewCompiler} from './private_import_compiler';
import {Console} from './private_import_core';
import {ReflectorHost, ReflectorHostContext} from './reflector_host';
import {StaticAndDynamicReflectionCapabilities} from './static_reflection_capabilities';
import {StaticReflector, StaticSymbol} from './static_reflector';
const nodeFs = require('fs');
const GENERATED_FILES = /\.ngfactory\.ts$|\.css\.ts$|\.css\.shim\.ts$/;
const GENERATED_OR_DTS_FILES = /\.d\.ts$|\.ngfactory\.ts$|\.css\.ts$|\.css\.shim\.ts$/;
const PREAMBLE = `/**
* This file is generated by the Angular 2 template compiler.
* Do not edit.
*/
/* tslint:disable */
`;
export class CodeGenerator {
constructor(
private options: AngularCompilerOptions, private program: ts.Program,
public host: ts.CompilerHost, private staticReflector: StaticReflector,
private compiler: compiler.OfflineCompiler, private reflectorHost: ReflectorHost) {}
private readFileMetadata(absSourcePath: string): FileMetadata {
const moduleMetadata = this.staticReflector.getModuleMetadata(absSourcePath);
const result: FileMetadata = {components: [], ngModules: [], fileUrl: absSourcePath};
if (!moduleMetadata) {
console.log(`WARNING: no metadata found for ${absSourcePath}`);
return result;
}
const metadata = moduleMetadata['metadata'];
const symbols = metadata && Object.keys(metadata);
if (!symbols || !symbols.length) {
return result;
}
for (const symbol of symbols) {
if (metadata[symbol] && metadata[symbol].__symbolic == 'error') {
// Ignore symbols that are only included to record error information.
continue;
}
const staticType = this.reflectorHost.findDeclaration(absSourcePath, symbol, absSourcePath);
const annotations = this.staticReflector.annotations(staticType);
annotations.forEach((annotation) => {
if (annotation instanceof NgModule) {
result.ngModules.push(staticType);
} else if (annotation instanceof Component) {
result.components.push(staticType);
}
});
}
return result;
}
// Write codegen in a directory structure matching the sources.
private calculateEmitPath(filePath: string): string {
let root = this.options.basePath;
for (let eachRootDir of this.options.rootDirs || []) {
if (this.options.trace) {
console.log(`Check if ${filePath} is under rootDirs element ${eachRootDir}`);
}
if (path.relative(eachRootDir, filePath).indexOf('.') !== 0) {
root = eachRootDir;
}
}
// transplant the codegen path to be inside the `genDir`
var relativePath: string = path.relative(root, filePath);
while (relativePath.startsWith('..' + path.sep)) {
// Strip out any `..` path such as: `../node_modules/@foo` as we want to put everything
// into `genDir`.
relativePath = relativePath.substr(3);
}
return path.join(this.options.genDir, relativePath);
}
codegen(): Promise<any> {
// Compare with false since the default should be true
const skipFileNames = (this.options.generateCodeForLibraries === false) ?
GENERATED_OR_DTS_FILES :
GENERATED_FILES;
let filePaths = this.program.getSourceFiles()
.filter(sf => !skipFileNames.test(sf.fileName))
.map(sf => this.reflectorHost.getCanonicalFileName(sf.fileName));
const fileMetas = filePaths.map((filePath) => this.readFileMetadata(filePath));
const ngModules = fileMetas.reduce((ngModules, fileMeta) => {
ngModules.push(...fileMeta.ngModules);
return ngModules;
}, <StaticSymbol[]>[]);
const analyzedNgModules = this.compiler.analyzeModules(ngModules);
return Promise.all(fileMetas.map(
(fileMeta) =>
this.compiler
.compile(
fileMeta.fileUrl, analyzedNgModules, fileMeta.components, fileMeta.ngModules)
.then((generatedModules) => {
generatedModules.forEach((generatedModule) => {
const sourceFile = this.program.getSourceFile(fileMeta.fileUrl);
const emitPath = this.calculateEmitPath(generatedModule.moduleUrl);
this.host.writeFile(
emitPath, PREAMBLE + generatedModule.source, false, () => {}, [sourceFile]);
});
})));
}
static create(
options: AngularCompilerOptions, cliOptions: NgcCliOptions, program: ts.Program,
compilerHost: ts.CompilerHost, reflectorHostContext?: ReflectorHostContext,
resourceLoader?: compiler.ResourceLoader): CodeGenerator {
resourceLoader = resourceLoader || {
get: (s: string) => {
if (!compilerHost.fileExists(s)) {
// TODO: We should really have a test for error cases like this!
throw new Error(`Compilation failed. Resource file not found: ${s}`);
}
return Promise.resolve(compilerHost.readFile(s));
}
};
const transFile = cliOptions.i18nFile;
const locale = cliOptions.locale;
let transContent: string = '';
if (transFile) {
if (!locale) {
throw new Error(
`The translation file (${transFile}) locale must be provided. Use the --locale option.`);
}
transContent = nodeFs.readFileSync(transFile, 'utf8');
}
const urlResolver: compiler.UrlResolver = compiler.createOfflineCompileUrlResolver();
const usePathMapping = !!options.rootDirs && options.rootDirs.length > 0;
const reflectorHost = usePathMapping ?
new PathMappedReflectorHost(program, compilerHost, options, reflectorHostContext) :
new ReflectorHost(program, compilerHost, options, reflectorHostContext);
const staticReflector = new StaticReflector(reflectorHost);
StaticAndDynamicReflectionCapabilities.install(staticReflector);
const htmlParser =
new compiler.I18NHtmlParser(new HtmlParser(), transContent, cliOptions.i18nFormat);
const config = new compiler.CompilerConfig({
genDebugInfo: options.debug === true,
defaultEncapsulation: ViewEncapsulation.Emulated,
logBindingUpdate: false,
useJit: false
});
const normalizer = new DirectiveNormalizer(resourceLoader, urlResolver, htmlParser, config);
const expressionParser = new Parser(new Lexer());
const elementSchemaRegistry = new DomElementSchemaRegistry();
const console = new Console();
const tmplParser =
new TemplateParser(expressionParser, elementSchemaRegistry, htmlParser, console, []);
const resolver = new CompileMetadataResolver(
new compiler.NgModuleResolver(staticReflector),
new compiler.DirectiveResolver(staticReflector), new compiler.PipeResolver(staticReflector),
elementSchemaRegistry, staticReflector);
// TODO(vicb): do not pass cliOptions.i18nFormat here
const offlineCompiler = new compiler.OfflineCompiler(
resolver, normalizer, tmplParser, new StyleCompiler(urlResolver), new ViewCompiler(config),
new NgModuleCompiler(), new TypeScriptEmitter(reflectorHost), cliOptions.locale,
cliOptions.i18nFormat);
return new CodeGenerator(
options, program, compilerHost, staticReflector, offlineCompiler, reflectorHost);
}
}
interface FileMetadata {
fileUrl: string;
components: StaticSymbol[];
ngModules: StaticSymbol[];
}