@@ -34,8 +34,9 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
3434} ;
3535Object . defineProperty ( exports , "__esModule" , { value : true } ) ;
3636const core_1 = require ( "@babel/core" ) ;
37+ const node_fs_1 = __importDefault ( require ( "node:fs" ) ) ;
38+ const node_path_1 = __importDefault ( require ( "node:path" ) ) ;
3739const piscina_1 = __importDefault ( require ( "piscina" ) ) ;
38- const application_1 = __importStar ( require ( "../../tools/babel/presets/application" ) ) ;
3940const load_esm_1 = require ( "../../utils/load-esm" ) ;
4041const textDecoder = new TextDecoder ( ) ;
4142const textEncoder = new TextEncoder ( ) ;
@@ -47,22 +48,41 @@ async function transformJavaScript(request) {
4748 return piscina_1 . default . move ( textEncoder . encode ( transformedData ) ) ;
4849}
4950exports . default = transformJavaScript ;
51+ /**
52+ * Cached instance of the compiler-cli linker's createEs2015LinkerPlugin function.
53+ */
5054let linkerPluginCreator ;
55+ /**
56+ * Cached instance of the compiler-cli linker's needsLinking function.
57+ */
58+ let needsLinking ;
5159async function transformWithBabel ( filename , data , options ) {
52- const shouldLink = ! options . skipLinker && ( await ( 0 , application_1 . requiresLinking ) ( filename , data ) ) ;
60+ const shouldLink = ! options . skipLinker && ( await requiresLinking ( filename , data ) ) ;
5361 const useInputSourcemap = options . sourcemap &&
5462 ( ! ! options . thirdPartySourcemaps || ! / [ \\ / ] n o d e _ m o d u l e s [ \\ / ] / . test ( filename ) ) ;
63+ const plugins = [ ] ;
64+ // Lazy load the linker plugin only when linking is required
65+ if ( shouldLink ) {
66+ const linkerPlugin = await createLinkerPlugin ( options ) ;
67+ plugins . push ( linkerPlugin ) ;
68+ }
69+ if ( options . advancedOptimizations ) {
70+ const sideEffectFree = options . sideEffects === false ;
71+ const safeAngularPackage = sideEffectFree && / [ \\ / ] n o d e _ m o d u l e s [ \\ / ] @ a n g u l a r [ \\ / ] / . test ( filename ) ;
72+ const { adjustStaticMembers, adjustTypeScriptEnums, elideAngularMetadata, markTopLevelPure } = await Promise . resolve ( ) . then ( ( ) => __importStar ( require ( '../babel/plugins' ) ) ) ;
73+ if ( safeAngularPackage ) {
74+ plugins . push ( markTopLevelPure ) ;
75+ }
76+ plugins . push ( elideAngularMetadata , adjustTypeScriptEnums , [
77+ adjustStaticMembers ,
78+ { wrapDecorators : sideEffectFree } ,
79+ ] ) ;
80+ }
5581 // If no additional transformations are needed, return the data directly
56- if ( ! options . advancedOptimizations && ! shouldLink ) {
82+ if ( plugins . length === 0 ) {
5783 // Strip sourcemaps if they should not be used
5884 return useInputSourcemap ? data : data . replace ( / ^ \/ \/ # s o u r c e M a p p i n g U R L = [ ^ \r \n ] * / gm, '' ) ;
5985 }
60- const sideEffectFree = options . sideEffects === false ;
61- const safeAngularPackage = sideEffectFree && / [ \\ / ] n o d e _ m o d u l e s [ \\ / ] @ a n g u l a r [ \\ / ] / . test ( filename ) ;
62- // Lazy load the linker plugin only when linking is required
63- if ( shouldLink ) {
64- linkerPluginCreator ??= ( await ( 0 , load_esm_1 . loadEsmModule ) ( '@angular/compiler-cli/linker/babel' ) ) . createEs2015LinkerPlugin ;
65- }
6686 const result = await ( 0 , core_1 . transformAsync ) ( data , {
6787 filename,
6888 inputSourceMap : ( useInputSourcemap ? undefined : false ) ,
@@ -71,23 +91,7 @@ async function transformWithBabel(filename, data, options) {
7191 configFile : false ,
7292 babelrc : false ,
7393 browserslistConfigFile : false ,
74- plugins : [ ] ,
75- presets : [
76- [
77- application_1 . default ,
78- {
79- angularLinker : linkerPluginCreator && {
80- shouldLink,
81- jitMode : options . jit ,
82- linkerPluginCreator,
83- } ,
84- optimize : options . advancedOptimizations && {
85- pureTopLevel : safeAngularPackage ,
86- wrapDecorators : sideEffectFree ,
87- } ,
88- } ,
89- ] ,
90- ] ,
94+ plugins,
9195 } ) ;
9296 const outputCode = result ?. code ?? data ;
9397 // Strip sourcemaps if they should not be used.
@@ -96,3 +100,55 @@ async function transformWithBabel(filename, data, options) {
96100 ? outputCode
97101 : outputCode . replace ( / ^ \/ \/ # s o u r c e M a p p i n g U R L = [ ^ \r \n ] * / gm, '' ) ;
98102}
103+ async function requiresLinking ( path , source ) {
104+ // @angular /core and @angular /compiler will cause false positives
105+ // Also, TypeScript files do not require linking
106+ if ( / [ \\ / ] @ a n g u l a r [ \\ / ] (?: c o m p i l e r | c o r e ) | \. t s x ? $ / . test ( path ) ) {
107+ return false ;
108+ }
109+ if ( ! needsLinking ) {
110+ // Load ESM `@angular/compiler-cli/linker` using the TypeScript dynamic import workaround.
111+ // Once TypeScript provides support for keeping the dynamic import this workaround can be
112+ // changed to a direct dynamic import.
113+ const linkerModule = await ( 0 , load_esm_1 . loadEsmModule ) ( '@angular/compiler-cli/linker' ) ;
114+ needsLinking = linkerModule . needsLinking ;
115+ }
116+ return needsLinking ( path , source ) ;
117+ }
118+ async function createLinkerPlugin ( options ) {
119+ linkerPluginCreator ??= ( await ( 0 , load_esm_1 . loadEsmModule ) ( '@angular/compiler-cli/linker/babel' ) ) . createEs2015LinkerPlugin ;
120+ const linkerPlugin = linkerPluginCreator ( {
121+ linkerJitMode : options . jit ,
122+ // This is a workaround until https://github.com/angular/angular/issues/42769 is fixed.
123+ sourceMapping : false ,
124+ logger : {
125+ level : 1 , // Info level
126+ debug ( ...args ) {
127+ // eslint-disable-next-line no-console
128+ console . debug ( args ) ;
129+ } ,
130+ info ( ...args ) {
131+ // eslint-disable-next-line no-console
132+ console . info ( args ) ;
133+ } ,
134+ warn ( ...args ) {
135+ // eslint-disable-next-line no-console
136+ console . warn ( args ) ;
137+ } ,
138+ error ( ...args ) {
139+ // eslint-disable-next-line no-console
140+ console . error ( args ) ;
141+ } ,
142+ } ,
143+ fileSystem : {
144+ resolve : node_path_1 . default . resolve ,
145+ exists : node_fs_1 . default . existsSync ,
146+ dirname : node_path_1 . default . dirname ,
147+ relative : node_path_1 . default . relative ,
148+ readFile : node_fs_1 . default . readFileSync ,
149+ // Node.JS types don't overlap the Compiler types.
150+ // eslint-disable-next-line @typescript-eslint/no-explicit-any
151+ } ,
152+ } ) ;
153+ return linkerPlugin ;
154+ }
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