-
Notifications
You must be signed in to change notification settings - Fork 25.3k
/
compiler.ts
738 lines (670 loc) Β· 32.4 KB
/
compiler.ts
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
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
/**
* @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
*/
import {CompileDirectiveMetadata, CompileDirectiveSummary, CompileIdentifierMetadata, CompileNgModuleMetadata, CompileNgModuleSummary, CompilePipeMetadata, CompilePipeSummary, CompileProviderMetadata, CompileStylesheetMetadata, CompileSummaryKind, CompileTypeMetadata, CompileTypeSummary, componentFactoryName, flatten, identifierName, templateSourceUrl} from '../compile_metadata';
import {CompilerConfig} from '../config';
import {ViewEncapsulation} from '../core';
import {MessageBundle} from '../i18n/message_bundle';
import {Identifiers, createTokenForExternalReference} from '../identifiers';
import {CompileMetadataResolver} from '../metadata_resolver';
import {HtmlParser} from '../ml_parser/html_parser';
import {InterpolationConfig} from '../ml_parser/interpolation_config';
import {NgModuleCompiler} from '../ng_module_compiler';
import {OutputEmitter} from '../output/abstract_emitter';
import * as o from '../output/output_ast';
import {ParseError} from '../parse_util';
import {CompiledStylesheet, StyleCompiler} from '../style_compiler';
import {SummaryResolver} from '../summary_resolver';
import {TemplateAst} from '../template_parser/template_ast';
import {TemplateParser} from '../template_parser/template_parser';
import {OutputContext, ValueVisitor, syntaxError, visitValue} from '../util';
import {TypeCheckCompiler} from '../view_compiler/type_check_compiler';
import {ViewCompileResult, ViewCompiler} from '../view_compiler/view_compiler';
import {AotCompilerHost} from './compiler_host';
import {AotCompilerOptions} from './compiler_options';
import {GeneratedFile} from './generated_file';
import {StaticReflector} from './static_reflector';
import {StaticSymbol} from './static_symbol';
import {ResolvedStaticSymbol, StaticSymbolResolver} from './static_symbol_resolver';
import {createForJitStub, serializeSummaries} from './summary_serializer';
import {ngfactoryFilePath, splitTypescriptSuffix, summaryFileName, summaryForJitFileName, summaryForJitName} from './util';
enum StubEmitFlags {
Basic = 1 << 0,
TypeCheck = 1 << 1,
All = TypeCheck | Basic
}
export class AotCompiler {
private _templateAstCache =
new Map<StaticSymbol, {template: TemplateAst[], pipes: CompilePipeSummary[]}>();
private _analyzedFiles = new Map<string, NgAnalyzedFile>();
constructor(
private _config: CompilerConfig, private _options: AotCompilerOptions,
private _host: AotCompilerHost, private _reflector: StaticReflector,
private _metadataResolver: CompileMetadataResolver, private _templateParser: TemplateParser,
private _styleCompiler: StyleCompiler, private _viewCompiler: ViewCompiler,
private _typeCheckCompiler: TypeCheckCompiler, private _ngModuleCompiler: NgModuleCompiler,
private _outputEmitter: OutputEmitter,
private _summaryResolver: SummaryResolver<StaticSymbol>,
private _symbolResolver: StaticSymbolResolver) {}
clearCache() { this._metadataResolver.clearCache(); }
analyzeModulesSync(rootFiles: string[]): NgAnalyzedModules {
const analyzeResult = analyzeAndValidateNgModules(
rootFiles, this._host, this._symbolResolver, this._metadataResolver);
analyzeResult.ngModules.forEach(
ngModule => this._metadataResolver.loadNgModuleDirectiveAndPipeMetadata(
ngModule.type.reference, true));
return analyzeResult;
}
analyzeModulesAsync(rootFiles: string[]): Promise<NgAnalyzedModules> {
const analyzeResult = analyzeAndValidateNgModules(
rootFiles, this._host, this._symbolResolver, this._metadataResolver);
return Promise
.all(analyzeResult.ngModules.map(
ngModule => this._metadataResolver.loadNgModuleDirectiveAndPipeMetadata(
ngModule.type.reference, false)))
.then(() => analyzeResult);
}
private _analyzeFile(fileName: string): NgAnalyzedFile {
let analyzedFile = this._analyzedFiles.get(fileName);
if (!analyzedFile) {
analyzedFile =
analyzeFile(this._host, this._symbolResolver, this._metadataResolver, fileName);
this._analyzedFiles.set(fileName, analyzedFile);
}
return analyzedFile;
}
findGeneratedFileNames(fileName: string): string[] {
const genFileNames: string[] = [];
const file = this._analyzeFile(fileName);
// Make sure we create a .ngfactory if we have a injectable/directive/pipe/NgModule
// or a reference to a non source file.
// Note: This is overestimating the required .ngfactory files as the real calculation is harder.
// Only do this for StubEmitFlags.Basic, as adding a type check block
// does not change this file (as we generate type check blocks based on NgModules).
if (this._options.allowEmptyCodegenFiles || file.directives.length || file.pipes.length ||
file.injectables.length || file.ngModules.length || file.exportsNonSourceFiles) {
genFileNames.push(ngfactoryFilePath(file.fileName, true));
if (this._options.enableSummariesForJit) {
genFileNames.push(summaryForJitFileName(file.fileName, true));
}
}
const fileSuffix = splitTypescriptSuffix(file.fileName, true)[1];
file.directives.forEach((dirSymbol) => {
const compMeta =
this._metadataResolver.getNonNormalizedDirectiveMetadata(dirSymbol) !.metadata;
if (!compMeta.isComponent) {
return;
}
// Note: compMeta is a component and therefore template is non null.
compMeta.template !.styleUrls.forEach((styleUrl) => {
const normalizedUrl = this._host.resourceNameToFileName(styleUrl, file.fileName);
if (!normalizedUrl) {
throw syntaxError(`Couldn't resolve resource ${styleUrl} relative to ${file.fileName}`);
}
const needsShim = (compMeta.template !.encapsulation ||
this._config.defaultEncapsulation) === ViewEncapsulation.Emulated;
genFileNames.push(_stylesModuleUrl(normalizedUrl, needsShim, fileSuffix));
if (this._options.allowEmptyCodegenFiles) {
genFileNames.push(_stylesModuleUrl(normalizedUrl, !needsShim, fileSuffix));
}
});
});
return genFileNames;
}
emitBasicStub(genFileName: string, originalFileName?: string): GeneratedFile {
const outputCtx = this._createOutputContext(genFileName);
if (genFileName.endsWith('.ngfactory.ts')) {
if (!originalFileName) {
throw new Error(
`Assertion error: require the original file for .ngfactory.ts stubs. File: ${genFileName}`);
}
const originalFile = this._analyzeFile(originalFileName);
this._createNgFactoryStub(outputCtx, originalFile, StubEmitFlags.Basic);
} else if (genFileName.endsWith('.ngsummary.ts')) {
if (this._options.enableSummariesForJit) {
if (!originalFileName) {
throw new Error(
`Assertion error: require the original file for .ngsummary.ts stubs. File: ${genFileName}`);
}
const originalFile = this._analyzeFile(originalFileName);
_createEmptyStub(outputCtx);
originalFile.ngModules.forEach(ngModule => {
// create exports that user code can reference
createForJitStub(outputCtx, ngModule.type.reference);
});
}
} else if (genFileName.endsWith('.ngstyle.ts')) {
_createEmptyStub(outputCtx);
}
// Note: for the stubs, we don't need a property srcFileUrl,
// as lateron in emitAllImpls we will create the proper GeneratedFiles with the
// correct srcFileUrl.
// This is good as e.g. for .ngstyle.ts files we can't derive
// the url of components based on the genFileUrl.
return this._codegenSourceModule('unknown', outputCtx);
}
emitTypeCheckStub(genFileName: string, originalFileName: string): GeneratedFile|null {
const originalFile = this._analyzeFile(originalFileName);
const outputCtx = this._createOutputContext(genFileName);
if (genFileName.endsWith('.ngfactory.ts')) {
this._createNgFactoryStub(outputCtx, originalFile, StubEmitFlags.TypeCheck);
}
return outputCtx.statements.length > 0 ?
this._codegenSourceModule(originalFile.fileName, outputCtx) :
null;
}
loadFilesAsync(fileNames: string[]): Promise<NgAnalyzedModules> {
const files = fileNames.map(fileName => this._analyzeFile(fileName));
const loadingPromises: Promise<NgAnalyzedModules>[] = [];
files.forEach(
file => file.ngModules.forEach(
ngModule =>
loadingPromises.push(this._metadataResolver.loadNgModuleDirectiveAndPipeMetadata(
ngModule.type.reference, false))));
return Promise.all(loadingPromises).then(_ => mergeAndValidateNgFiles(files));
}
loadFilesSync(fileNames: string[]): NgAnalyzedModules {
const files = fileNames.map(fileName => this._analyzeFile(fileName));
files.forEach(
file => file.ngModules.forEach(
ngModule => this._metadataResolver.loadNgModuleDirectiveAndPipeMetadata(
ngModule.type.reference, true)));
return mergeAndValidateNgFiles(files);
}
private _createNgFactoryStub(
outputCtx: OutputContext, file: NgAnalyzedFile, emitFlags: StubEmitFlags) {
file.ngModules.forEach((ngModuleMeta, ngModuleIndex) => {
// Note: the code below needs to executed for StubEmitFlags.Basic and StubEmitFlags.TypeCheck,
// so we don't change the .ngfactory file too much when adding the typecheck block.
// create exports that user code can reference
this._ngModuleCompiler.createStub(outputCtx, ngModuleMeta.type.reference);
// add references to the symbols from the metadata.
// These can be used by the type check block for components,
// and they also cause TypeScript to include these files into the program too,
// which will make them part of the analyzedFiles.
const externalReferences: StaticSymbol[] = [
...ngModuleMeta.transitiveModule.directives.map(d => d.reference),
...ngModuleMeta.transitiveModule.pipes.map(d => d.reference),
...ngModuleMeta.importedModules.map(m => m.type.reference),
...ngModuleMeta.exportedModules.map(m => m.type.reference),
];
const externalReferenceVars = new Map<any, string>();
externalReferences.forEach((ref, typeIndex) => {
if (this._host.isSourceFile(ref.filePath)) {
externalReferenceVars.set(ref, `_decl${ngModuleIndex}_${typeIndex}`);
}
});
externalReferenceVars.forEach((varName, reference) => {
outputCtx.statements.push(
o.variable(varName)
.set(o.NULL_EXPR.cast(o.DYNAMIC_TYPE))
.toDeclStmt(o.expressionType(outputCtx.importExpr(reference))));
});
if (emitFlags & StubEmitFlags.TypeCheck) {
// add the typecheck block for all components of the NgModule
ngModuleMeta.declaredDirectives.forEach((dirId) => {
const compMeta = this._metadataResolver.getDirectiveMetadata(dirId.reference);
if (!compMeta.isComponent) {
return;
}
this._createTypeCheckBlock(
outputCtx, ngModuleMeta, this._metadataResolver.getHostComponentMetadata(compMeta),
[compMeta.type], externalReferenceVars);
this._createTypeCheckBlock(
outputCtx, ngModuleMeta, compMeta, ngModuleMeta.transitiveModule.directives,
externalReferenceVars);
});
}
});
if (outputCtx.statements.length === 0) {
_createEmptyStub(outputCtx);
}
}
private _createTypeCheckBlock(
ctx: OutputContext, moduleMeta: CompileNgModuleMetadata, compMeta: CompileDirectiveMetadata,
directives: CompileIdentifierMetadata[], externalReferenceVars: Map<any, string>) {
const {template: parsedTemplate, pipes: usedPipes} =
this._parseTemplate(compMeta, moduleMeta, directives);
ctx.statements.push(...this._typeCheckCompiler.compileComponent(
compMeta, parsedTemplate, usedPipes, externalReferenceVars));
}
emitMessageBundle(analyzeResult: NgAnalyzedModules, locale: string|null): MessageBundle {
const errors: ParseError[] = [];
const htmlParser = new HtmlParser();
// TODO(vicb): implicit tags & attributes
const messageBundle = new MessageBundle(htmlParser, [], {}, locale);
analyzeResult.files.forEach(file => {
const compMetas: CompileDirectiveMetadata[] = [];
file.directives.forEach(directiveType => {
const dirMeta = this._metadataResolver.getDirectiveMetadata(directiveType);
if (dirMeta && dirMeta.isComponent) {
compMetas.push(dirMeta);
}
});
compMetas.forEach(compMeta => {
const html = compMeta.template !.template !;
const interpolationConfig =
InterpolationConfig.fromArray(compMeta.template !.interpolation);
errors.push(
...messageBundle.updateFromTemplate(html, file.fileName, interpolationConfig) !);
});
});
if (errors.length) {
throw new Error(errors.map(e => e.toString()).join('\n'));
}
return messageBundle;
}
emitAllImpls(analyzeResult: NgAnalyzedModules): GeneratedFile[] {
const {ngModuleByPipeOrDirective, files} = analyzeResult;
const sourceModules = files.map(
file => this._compileImplFile(
file.fileName, ngModuleByPipeOrDirective, file.directives, file.pipes, file.ngModules,
file.injectables));
return flatten(sourceModules);
}
private _compileImplFile(
srcFileUrl: string, ngModuleByPipeOrDirective: Map<StaticSymbol, CompileNgModuleMetadata>,
directives: StaticSymbol[], pipes: StaticSymbol[], ngModules: CompileNgModuleMetadata[],
injectables: StaticSymbol[]): GeneratedFile[] {
const fileSuffix = splitTypescriptSuffix(srcFileUrl, true)[1];
const generatedFiles: GeneratedFile[] = [];
const outputCtx = this._createOutputContext(ngfactoryFilePath(srcFileUrl, true));
generatedFiles.push(
...this._createSummary(srcFileUrl, directives, pipes, ngModules, injectables, outputCtx));
// compile all ng modules
ngModules.forEach((ngModuleMeta) => this._compileModule(outputCtx, ngModuleMeta));
// compile components
directives.forEach((dirType) => {
const compMeta = this._metadataResolver.getDirectiveMetadata(<any>dirType);
if (!compMeta.isComponent) {
return;
}
const ngModule = ngModuleByPipeOrDirective.get(dirType);
if (!ngModule) {
throw new Error(
`Internal Error: cannot determine the module for component ${identifierName(compMeta.type)}!`);
}
// compile styles
const componentStylesheet = this._styleCompiler.compileComponent(outputCtx, compMeta);
// Note: compMeta is a component and therefore template is non null.
compMeta.template !.externalStylesheets.forEach((stylesheetMeta) => {
// Note: fill non shim and shim style files as they might
// be shared by component with and without ViewEncapsulation.
const shim = this._styleCompiler.needsStyleShim(compMeta);
generatedFiles.push(
this._codegenStyles(srcFileUrl, compMeta, stylesheetMeta, shim, fileSuffix));
if (this._options.allowEmptyCodegenFiles) {
generatedFiles.push(
this._codegenStyles(srcFileUrl, compMeta, stylesheetMeta, !shim, fileSuffix));
}
});
// compile components
const compViewVars = this._compileComponent(
outputCtx, compMeta, ngModule, ngModule.transitiveModule.directives, componentStylesheet,
fileSuffix);
this._compileComponentFactory(outputCtx, compMeta, ngModule, fileSuffix);
});
if (outputCtx.statements.length > 0 || this._options.allowEmptyCodegenFiles) {
const srcModule = this._codegenSourceModule(srcFileUrl, outputCtx);
generatedFiles.unshift(srcModule);
}
return generatedFiles;
}
private _createSummary(
srcFileName: string, directives: StaticSymbol[], pipes: StaticSymbol[],
ngModules: CompileNgModuleMetadata[], injectables: StaticSymbol[],
ngFactoryCtx: OutputContext): GeneratedFile[] {
const symbolSummaries = this._symbolResolver.getSymbolsOf(srcFileName)
.map(symbol => this._symbolResolver.resolveSymbol(symbol));
const typeData: {
summary: CompileTypeSummary,
metadata: CompileNgModuleMetadata | CompileDirectiveMetadata | CompilePipeMetadata |
CompileTypeMetadata
}[] =
[
...ngModules.map(
meta => ({
summary: this._metadataResolver.getNgModuleSummary(meta.type.reference) !,
metadata: this._metadataResolver.getNgModuleMetadata(meta.type.reference) !
})),
...directives.map(ref => ({
summary: this._metadataResolver.getDirectiveSummary(ref) !,
metadata: this._metadataResolver.getDirectiveMetadata(ref) !
})),
...pipes.map(ref => ({
summary: this._metadataResolver.getPipeSummary(ref) !,
metadata: this._metadataResolver.getPipeMetadata(ref) !
})),
...injectables.map(ref => ({
summary: this._metadataResolver.getInjectableSummary(ref) !,
metadata: this._metadataResolver.getInjectableSummary(ref) !.type
}))
];
const forJitOutputCtx = this._options.enableSummariesForJit ?
this._createOutputContext(summaryForJitFileName(srcFileName, true)) :
null;
const {json, exportAs} = serializeSummaries(
srcFileName, forJitOutputCtx, this._summaryResolver, this._symbolResolver, symbolSummaries,
typeData);
exportAs.forEach((entry) => {
ngFactoryCtx.statements.push(
o.variable(entry.exportAs).set(ngFactoryCtx.importExpr(entry.symbol)).toDeclStmt(null, [
o.StmtModifier.Exported
]));
});
const summaryJson = new GeneratedFile(srcFileName, summaryFileName(srcFileName), json);
const result = [summaryJson];
if (forJitOutputCtx) {
result.push(this._codegenSourceModule(srcFileName, forJitOutputCtx));
}
return result;
}
private _compileModule(outputCtx: OutputContext, ngModule: CompileNgModuleMetadata): void {
const providers: CompileProviderMetadata[] = [];
if (this._options.locale) {
const normalizedLocale = this._options.locale.replace(/_/g, '-');
providers.push({
token: createTokenForExternalReference(this._reflector, Identifiers.LOCALE_ID),
useValue: normalizedLocale,
});
}
if (this._options.i18nFormat) {
providers.push({
token: createTokenForExternalReference(this._reflector, Identifiers.TRANSLATIONS_FORMAT),
useValue: this._options.i18nFormat
});
}
this._ngModuleCompiler.compile(outputCtx, ngModule, providers);
}
private _compileComponentFactory(
outputCtx: OutputContext, compMeta: CompileDirectiveMetadata,
ngModule: CompileNgModuleMetadata, fileSuffix: string): void {
const hostMeta = this._metadataResolver.getHostComponentMetadata(compMeta);
const hostViewFactoryVar =
this._compileComponent(outputCtx, hostMeta, ngModule, [compMeta.type], null, fileSuffix)
.viewClassVar;
const compFactoryVar = componentFactoryName(compMeta.type.reference);
const inputsExprs: o.LiteralMapEntry[] = [];
for (let propName in compMeta.inputs) {
const templateName = compMeta.inputs[propName];
// Don't quote so that the key gets minified...
inputsExprs.push(new o.LiteralMapEntry(propName, o.literal(templateName), false));
}
const outputsExprs: o.LiteralMapEntry[] = [];
for (let propName in compMeta.outputs) {
const templateName = compMeta.outputs[propName];
// Don't quote so that the key gets minified...
outputsExprs.push(new o.LiteralMapEntry(propName, o.literal(templateName), false));
}
outputCtx.statements.push(
o.variable(compFactoryVar)
.set(o.importExpr(Identifiers.createComponentFactory).callFn([
o.literal(compMeta.selector), outputCtx.importExpr(compMeta.type.reference),
o.variable(hostViewFactoryVar), new o.LiteralMapExpr(inputsExprs),
new o.LiteralMapExpr(outputsExprs),
o.literalArr(
compMeta.template !.ngContentSelectors.map(selector => o.literal(selector)))
]))
.toDeclStmt(
o.importType(
Identifiers.ComponentFactory,
[o.expressionType(outputCtx.importExpr(compMeta.type.reference)) !],
[o.TypeModifier.Const]),
[o.StmtModifier.Final, o.StmtModifier.Exported]));
}
private _compileComponent(
outputCtx: OutputContext, compMeta: CompileDirectiveMetadata,
ngModule: CompileNgModuleMetadata, directiveIdentifiers: CompileIdentifierMetadata[],
componentStyles: CompiledStylesheet|null, fileSuffix: string): ViewCompileResult {
const {template: parsedTemplate, pipes: usedPipes} =
this._parseTemplate(compMeta, ngModule, directiveIdentifiers);
const stylesExpr = componentStyles ? o.variable(componentStyles.stylesVar) : o.literalArr([]);
const viewResult = this._viewCompiler.compileComponent(
outputCtx, compMeta, parsedTemplate, stylesExpr, usedPipes);
if (componentStyles) {
_resolveStyleStatements(
this._symbolResolver, componentStyles, this._styleCompiler.needsStyleShim(compMeta),
fileSuffix);
}
return viewResult;
}
private _parseTemplate(
compMeta: CompileDirectiveMetadata, ngModule: CompileNgModuleMetadata,
directiveIdentifiers: CompileIdentifierMetadata[]):
{template: TemplateAst[], pipes: CompilePipeSummary[]} {
if (this._templateAstCache.has(compMeta.type.reference)) {
return this._templateAstCache.get(compMeta.type.reference) !;
}
const preserveWhitespaces = compMeta !.template !.preserveWhitespaces;
const directives =
directiveIdentifiers.map(dir => this._metadataResolver.getDirectiveSummary(dir.reference));
const pipes = ngModule.transitiveModule.pipes.map(
pipe => this._metadataResolver.getPipeSummary(pipe.reference));
const result = this._templateParser.parse(
compMeta, compMeta.template !.htmlAst !, directives, pipes, ngModule.schemas,
templateSourceUrl(ngModule.type, compMeta, compMeta.template !), preserveWhitespaces);
this._templateAstCache.set(compMeta.type.reference, result);
return result;
}
private _createOutputContext(genFilePath: string): OutputContext {
const importExpr = (symbol: StaticSymbol, typeParams: o.Type[] | null = null) => {
if (!(symbol instanceof StaticSymbol)) {
throw new Error(`Internal error: unknown identifier ${JSON.stringify(symbol)}`);
}
const arity = this._symbolResolver.getTypeArity(symbol) || 0;
const {filePath, name, members} = this._symbolResolver.getImportAs(symbol) || symbol;
const importModule = this._symbolResolver.fileNameToModuleName(filePath, genFilePath);
// It should be good enough to compare filePath to genFilePath and if they are equal
// there is a self reference. However, ngfactory files generate to .ts but their
// symbols have .d.ts so a simple compare is insufficient. They should be canonical
// and is tracked by #17705.
const selfReference = this._symbolResolver.fileNameToModuleName(genFilePath, genFilePath);
const moduleName = importModule === selfReference ? null : importModule;
// If we are in a type expression that refers to a generic type then supply
// the required type parameters. If there were not enough type parameters
// supplied, supply any as the type. Outside a type expression the reference
// should not supply type parameters and be treated as a simple value reference
// to the constructor function itself.
const suppliedTypeParams = typeParams || [];
const missingTypeParamsCount = arity - suppliedTypeParams.length;
const allTypeParams =
suppliedTypeParams.concat(new Array(missingTypeParamsCount).fill(o.DYNAMIC_TYPE));
return members.reduce(
(expr, memberName) => expr.prop(memberName),
<o.Expression>o.importExpr(
new o.ExternalReference(moduleName, name, null), allTypeParams));
};
return {statements: [], genFilePath, importExpr};
}
private _codegenStyles(
srcFileUrl: string, compMeta: CompileDirectiveMetadata,
stylesheetMetadata: CompileStylesheetMetadata, isShimmed: boolean,
fileSuffix: string): GeneratedFile {
const outputCtx = this._createOutputContext(
_stylesModuleUrl(stylesheetMetadata.moduleUrl !, isShimmed, fileSuffix));
const compiledStylesheet =
this._styleCompiler.compileStyles(outputCtx, compMeta, stylesheetMetadata, isShimmed);
_resolveStyleStatements(this._symbolResolver, compiledStylesheet, isShimmed, fileSuffix);
return this._codegenSourceModule(srcFileUrl, outputCtx);
}
private _codegenSourceModule(srcFileUrl: string, ctx: OutputContext): GeneratedFile {
return new GeneratedFile(srcFileUrl, ctx.genFilePath, ctx.statements);
}
}
function _createEmptyStub(outputCtx: OutputContext) {
// Note: We need to produce at least one import statement so that
// TypeScript knows that the file is an es6 module. Otherwise our generated
// exports / imports won't be emitted properly by TypeScript.
outputCtx.statements.push(o.importExpr(Identifiers.ComponentFactory).toStmt());
}
function _resolveStyleStatements(
symbolResolver: StaticSymbolResolver, compileResult: CompiledStylesheet, needsShim: boolean,
fileSuffix: string): void {
compileResult.dependencies.forEach((dep) => {
dep.setValue(symbolResolver.getStaticSymbol(
_stylesModuleUrl(dep.moduleUrl, needsShim, fileSuffix), dep.name));
});
}
function _stylesModuleUrl(stylesheetUrl: string, shim: boolean, suffix: string): string {
return `${stylesheetUrl}${shim ? '.shim' : ''}.ngstyle${suffix}`;
}
export interface NgAnalyzedModules {
ngModules: CompileNgModuleMetadata[];
ngModuleByPipeOrDirective: Map<StaticSymbol, CompileNgModuleMetadata>;
files: NgAnalyzedFile[];
symbolsMissingModule?: StaticSymbol[];
}
export interface NgAnalyzedFile {
fileName: string;
directives: StaticSymbol[];
pipes: StaticSymbol[];
ngModules: CompileNgModuleMetadata[];
injectables: StaticSymbol[];
exportsNonSourceFiles: boolean;
}
export interface NgAnalyzeModulesHost { isSourceFile(filePath: string): boolean; }
export function analyzeNgModules(
fileNames: string[], host: NgAnalyzeModulesHost, staticSymbolResolver: StaticSymbolResolver,
metadataResolver: CompileMetadataResolver): NgAnalyzedModules {
const files = _analyzeFilesIncludingNonProgramFiles(
fileNames, host, staticSymbolResolver, metadataResolver);
return mergeAnalyzedFiles(files);
}
export function analyzeAndValidateNgModules(
fileNames: string[], host: NgAnalyzeModulesHost, staticSymbolResolver: StaticSymbolResolver,
metadataResolver: CompileMetadataResolver): NgAnalyzedModules {
return validateAnalyzedModules(
analyzeNgModules(fileNames, host, staticSymbolResolver, metadataResolver));
}
function validateAnalyzedModules(analyzedModules: NgAnalyzedModules): NgAnalyzedModules {
if (analyzedModules.symbolsMissingModule && analyzedModules.symbolsMissingModule.length) {
const messages = analyzedModules.symbolsMissingModule.map(
s =>
`Cannot determine the module for class ${s.name} in ${s.filePath}! Add ${s.name} to the NgModule to fix it.`);
throw syntaxError(messages.join('\n'));
}
return analyzedModules;
}
// Analyzes all of the program files,
// including files that are not part of the program
// but are referenced by an NgModule.
function _analyzeFilesIncludingNonProgramFiles(
fileNames: string[], host: NgAnalyzeModulesHost, staticSymbolResolver: StaticSymbolResolver,
metadataResolver: CompileMetadataResolver): NgAnalyzedFile[] {
const seenFiles = new Set<string>();
const files: NgAnalyzedFile[] = [];
const visitFile = (fileName: string) => {
if (seenFiles.has(fileName) || !host.isSourceFile(fileName)) {
return false;
}
seenFiles.add(fileName);
const analyzedFile = analyzeFile(host, staticSymbolResolver, metadataResolver, fileName);
files.push(analyzedFile);
analyzedFile.ngModules.forEach(ngModule => {
ngModule.transitiveModule.modules.forEach(modMeta => visitFile(modMeta.reference.filePath));
});
};
fileNames.forEach((fileName) => visitFile(fileName));
return files;
}
export function analyzeFile(
host: NgAnalyzeModulesHost, staticSymbolResolver: StaticSymbolResolver,
metadataResolver: CompileMetadataResolver, fileName: string): NgAnalyzedFile {
const directives: StaticSymbol[] = [];
const pipes: StaticSymbol[] = [];
const injectables: StaticSymbol[] = [];
const ngModules: CompileNgModuleMetadata[] = [];
const hasDecorators = staticSymbolResolver.hasDecorators(fileName);
let exportsNonSourceFiles = false;
// Don't analyze .d.ts files that have no decorators as a shortcut
// to speed up the analysis. This prevents us from
// resolving the references in these files.
// Note: exportsNonSourceFiles is only needed when compiling with summaries,
// which is not the case when .d.ts files are treated as input files.
if (!fileName.endsWith('.d.ts') || hasDecorators) {
staticSymbolResolver.getSymbolsOf(fileName).forEach((symbol) => {
const resolvedSymbol = staticSymbolResolver.resolveSymbol(symbol);
const symbolMeta = resolvedSymbol.metadata;
if (!symbolMeta || symbolMeta.__symbolic === 'error') {
return;
}
let isNgSymbol = false;
if (symbolMeta.__symbolic === 'class') {
if (metadataResolver.isDirective(symbol)) {
isNgSymbol = true;
directives.push(symbol);
} else if (metadataResolver.isPipe(symbol)) {
isNgSymbol = true;
pipes.push(symbol);
} else if (metadataResolver.isInjectable(symbol)) {
isNgSymbol = true;
injectables.push(symbol);
} else {
const ngModule = metadataResolver.getNgModuleMetadata(symbol, false);
if (ngModule) {
isNgSymbol = true;
ngModules.push(ngModule);
}
}
}
if (!isNgSymbol) {
exportsNonSourceFiles =
exportsNonSourceFiles || isValueExportingNonSourceFile(host, symbolMeta);
}
});
}
return {
fileName, directives, pipes, ngModules, injectables, exportsNonSourceFiles,
};
}
function isValueExportingNonSourceFile(host: NgAnalyzeModulesHost, metadata: any): boolean {
let exportsNonSourceFiles = false;
class Visitor implements ValueVisitor {
visitArray(arr: any[], context: any): any { arr.forEach(v => visitValue(v, this, context)); }
visitStringMap(map: {[key: string]: any}, context: any): any {
Object.keys(map).forEach((key) => visitValue(map[key], this, context));
}
visitPrimitive(value: any, context: any): any {}
visitOther(value: any, context: any): any {
if (value instanceof StaticSymbol && !host.isSourceFile(value.filePath)) {
exportsNonSourceFiles = true;
}
}
}
visitValue(metadata, new Visitor(), null);
return exportsNonSourceFiles;
}
export function mergeAnalyzedFiles(analyzedFiles: NgAnalyzedFile[]): NgAnalyzedModules {
const allNgModules: CompileNgModuleMetadata[] = [];
const ngModuleByPipeOrDirective = new Map<StaticSymbol, CompileNgModuleMetadata>();
const allPipesAndDirectives = new Set<StaticSymbol>();
analyzedFiles.forEach(af => {
af.ngModules.forEach(ngModule => {
allNgModules.push(ngModule);
ngModule.declaredDirectives.forEach(
d => ngModuleByPipeOrDirective.set(d.reference, ngModule));
ngModule.declaredPipes.forEach(p => ngModuleByPipeOrDirective.set(p.reference, ngModule));
});
af.directives.forEach(d => allPipesAndDirectives.add(d));
af.pipes.forEach(p => allPipesAndDirectives.add(p));
});
const symbolsMissingModule: StaticSymbol[] = [];
allPipesAndDirectives.forEach(ref => {
if (!ngModuleByPipeOrDirective.has(ref)) {
symbolsMissingModule.push(ref);
}
});
return {
ngModules: allNgModules,
ngModuleByPipeOrDirective,
symbolsMissingModule,
files: analyzedFiles
};
}
function mergeAndValidateNgFiles(files: NgAnalyzedFile[]): NgAnalyzedModules {
return validateAnalyzedModules(mergeAnalyzedFiles(files));
}