perf(http): replace HttpStatusCode enum with constant object for better tree-shaking

The HttpStatusCode enum has been replaced with a constant object using
`as const` to enable better tree-shaking and reduce bundle size. Type
compatibility is maintained through a type alias, ensuring no breaking
changes for existing code.

Fixes angular#64767

Author: MeAkib

goldens/public-api/common/http/index.api.md

@@ -3130,134 +3130,70 @@ export interface HttpSentEvent {
 }
 
 // @public
-export enum HttpStatusCode {
-    // (undocumented)
-    Accepted = 202,
-    // (undocumented)
-    AlreadyReported = 208,
-    // (undocumented)
-    BadGateway = 502,
-    // (undocumented)
-    BadRequest = 400,
-    // (undocumented)
-    Conflict = 409,
-    // (undocumented)
-    Continue = 100,
-    // (undocumented)
-    Created = 201,
-    // (undocumented)
-    EarlyHints = 103,
-    // (undocumented)
-    ExpectationFailed = 417,
-    // (undocumented)
-    FailedDependency = 424,
-    // (undocumented)
-    Forbidden = 403,
-    // (undocumented)
-    Found = 302,
-    // (undocumented)
-    GatewayTimeout = 504,
-    // (undocumented)
-    Gone = 410,
-    // (undocumented)
-    HttpVersionNotSupported = 505,
-    // (undocumented)
-    ImATeapot = 418,
-    // (undocumented)
-    ImUsed = 226,
-    // (undocumented)
-    InsufficientStorage = 507,
-    // (undocumented)
-    InternalServerError = 500,
-    // (undocumented)
-    LengthRequired = 411,
-    // (undocumented)
-    Locked = 423,
-    // (undocumented)
-    LoopDetected = 508,
-    // (undocumented)
-    MethodNotAllowed = 405,
-    // (undocumented)
-    MisdirectedRequest = 421,
-    // (undocumented)
-    MovedPermanently = 301,
-    // (undocumented)
-    MultipleChoices = 300,
-    // (undocumented)
-    MultiStatus = 207,
-    // (undocumented)
-    NetworkAuthenticationRequired = 511,
-    // (undocumented)
-    NoContent = 204,
-    // (undocumented)
-    NonAuthoritativeInformation = 203,
-    // (undocumented)
-    NotAcceptable = 406,
-    // (undocumented)
-    NotExtended = 510,
-    // (undocumented)
-    NotFound = 404,
-    // (undocumented)
-    NotImplemented = 501,
-    // (undocumented)
-    NotModified = 304,
-    // (undocumented)
-    Ok = 200,
-    // (undocumented)
-    PartialContent = 206,
-    // (undocumented)
-    PayloadTooLarge = 413,
-    // (undocumented)
-    PaymentRequired = 402,
-    // (undocumented)
-    PermanentRedirect = 308,
-    // (undocumented)
-    PreconditionFailed = 412,
-    // (undocumented)
-    PreconditionRequired = 428,
-    // (undocumented)
-    Processing = 102,
-    // (undocumented)
-    ProxyAuthenticationRequired = 407,
-    // (undocumented)
-    RangeNotSatisfiable = 416,
-    // (undocumented)
-    RequestHeaderFieldsTooLarge = 431,
-    // (undocumented)
-    RequestTimeout = 408,
-    // (undocumented)
-    ResetContent = 205,
-    // (undocumented)
-    SeeOther = 303,
-    // (undocumented)
-    ServiceUnavailable = 503,
-    // (undocumented)
-    SwitchingProtocols = 101,
-    // (undocumented)
-    TemporaryRedirect = 307,
-    // (undocumented)
-    TooEarly = 425,
-    // (undocumented)
-    TooManyRequests = 429,
-    // (undocumented)
-    Unauthorized = 401,
-    // (undocumented)
-    UnavailableForLegalReasons = 451,
-    // (undocumented)
-    UnprocessableEntity = 422,
-    // (undocumented)
-    UnsupportedMediaType = 415,
-    // (undocumented)
-    Unused = 306,
-    // (undocumented)
-    UpgradeRequired = 426,
-    // (undocumented)
-    UriTooLong = 414,
-    // (undocumented)
-    UseProxy = 305,
-    // (undocumented)
-    VariantAlsoNegotiates = 506
-}
+export const HttpStatusCode: {
+    readonly Continue: 100;
+    readonly SwitchingProtocols: 101;
+    readonly Processing: 102;
+    readonly EarlyHints: 103;
+    readonly Ok: 200;
+    readonly Created: 201;
+    readonly Accepted: 202;
+    readonly NonAuthoritativeInformation: 203;
+    readonly NoContent: 204;
+    readonly ResetContent: 205;
+    readonly PartialContent: 206;
+    readonly MultiStatus: 207;
+    readonly AlreadyReported: 208;
+    readonly ImUsed: 226;
+    readonly MultipleChoices: 300;
+    readonly MovedPermanently: 301;
+    readonly Found: 302;
+    readonly SeeOther: 303;
+    readonly NotModified: 304;
+    readonly UseProxy: 305;
+    readonly TemporaryRedirect: 307;
+    readonly PermanentRedirect: 308;
+    readonly BadRequest: 400;
+    readonly Unauthorized: 401;
+    readonly PaymentRequired: 402;
+    readonly Forbidden: 403;
+    readonly NotFound: 404;
+    readonly MethodNotAllowed: 405;
+    readonly NotAcceptable: 406;
+    readonly ProxyAuthenticationRequired: 407;
+    readonly RequestTimeout: 408;
+    readonly Conflict: 409;
+    readonly Gone: 410;
+    readonly LengthRequired: 411;
+    readonly PreconditionFailed: 412;
+    readonly PayloadTooLarge: 413;
+    readonly UriTooLong: 414;
+    readonly UnsupportedMediaType: 415;
+    readonly RangeNotSatisfiable: 416;
+    readonly ExpectationFailed: 417;
+    readonly ImATeapot: 418;
+    readonly MisdirectedRequest: 421;
+    readonly UnprocessableEntity: 422;
+    readonly Locked: 423;
+    readonly FailedDependency: 424;
+    readonly TooEarly: 425;
+    readonly UpgradeRequired: 426;
+    readonly PreconditionRequired: 428;
+    readonly TooManyRequests: 429;
+    readonly RequestHeaderFieldsTooLarge: 431;
+    readonly UnavailableForLegalReasons: 451;
+    readonly InternalServerError: 500;
+    readonly NotImplemented: 501;
+    readonly BadGateway: 502;
+    readonly ServiceUnavailable: 503;
+    readonly GatewayTimeout: 504;
+    readonly HttpVersionNotSupported: 505;
+    readonly VariantAlsoNegotiates: 506;
+    readonly InsufficientStorage: 507;
+    readonly LoopDetected: 508;
+    readonly NotExtended: 510;
+    readonly NetworkAuthenticationRequired: 511;
+};
 
 // @public
 export type HttpTransferCacheOptions = {

packages/common/http/src/response.ts

@@ -446,73 +446,71 @@ export const HTTP_STATUS_CODE_NO_CONTENT = 204;
  * Http status codes.
  * As per https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
  * @publicApi
+ * @object-literal-as-enum
  */
-export enum HttpStatusCode {
-  Continue = 100,
-  SwitchingProtocols = 101,
-  Processing = 102,
-  EarlyHints = 103,
-
-  Ok = HTTP_STATUS_CODE_OK,
-  Created = 201,
-  Accepted = 202,
-  NonAuthoritativeInformation = 203,
-  NoContent = HTTP_STATUS_CODE_NO_CONTENT,
-  ResetContent = 205,
-  PartialContent = 206,
-  MultiStatus = 207,
-  AlreadyReported = 208,
-  ImUsed = 226,
-
-  MultipleChoices = 300,
-  MovedPermanently = 301,
-  Found = 302,
-  SeeOther = 303,
-  NotModified = 304,
-  UseProxy = 305,
-  Unused = 306,
-  TemporaryRedirect = 307,
-  PermanentRedirect = 308,
-
-  BadRequest = 400,
-  Unauthorized = 401,
-  PaymentRequired = 402,
-  Forbidden = 403,
-  NotFound = 404,
-  MethodNotAllowed = 405,
-  NotAcceptable = 406,
-  ProxyAuthenticationRequired = 407,
-  RequestTimeout = 408,
-  Conflict = 409,
-  Gone = 410,
-  LengthRequired = 411,
-  PreconditionFailed = 412,
-  PayloadTooLarge = 413,
-  UriTooLong = 414,
-  UnsupportedMediaType = 415,
-  RangeNotSatisfiable = 416,
-  ExpectationFailed = 417,
-  ImATeapot = 418,
-  MisdirectedRequest = 421,
-  UnprocessableEntity = 422,
-  Locked = 423,
-  FailedDependency = 424,
-  TooEarly = 425,
-  UpgradeRequired = 426,
-  PreconditionRequired = 428,
-  TooManyRequests = 429,
-  RequestHeaderFieldsTooLarge = 431,
-  UnavailableForLegalReasons = 451,
-
-  InternalServerError = 500,
-  NotImplemented = 501,
-  BadGateway = 502,
-  ServiceUnavailable = 503,
-  GatewayTimeout = 504,
-  HttpVersionNotSupported = 505,
-  VariantAlsoNegotiates = 506,
-  InsufficientStorage = 507,
-  LoopDetected = 508,
-  NotExtended = 510,
-  NetworkAuthenticationRequired = 511,
-}
+export const HttpStatusCode = {
+  Continue: 100,
+  SwitchingProtocols: 101,
+  Processing: 102,
+  EarlyHints: 103,
+  Ok: HTTP_STATUS_CODE_OK,
+  Created: 201,
+  Accepted: 202,
+  NonAuthoritativeInformation: 203,
+  NoContent: HTTP_STATUS_CODE_NO_CONTENT,
+  ResetContent: 205,
+  PartialContent: 206,
+  MultiStatus: 207,
+  AlreadyReported: 208,
+  ImUsed: 226,
+  MultipleChoices: 300,
+  MovedPermanently: 301,
+  Found: 302,
+  SeeOther: 303,
+  NotModified: 304,
+  UseProxy: 305,
+  TemporaryRedirect: 307,
+  PermanentRedirect: 308,
+  BadRequest: 400,
+  Unauthorized: 401,
+  PaymentRequired: 402,
+  Forbidden: 403,
+  NotFound: 404,
+  MethodNotAllowed: 405,
+  NotAcceptable: 406,
+  ProxyAuthenticationRequired: 407,
+  RequestTimeout: 408,
+  Conflict: 409,
+  Gone: 410,
+  LengthRequired: 411,
+  PreconditionFailed: 412,
+  PayloadTooLarge: 413,
+  UriTooLong: 414,
+  UnsupportedMediaType: 415,
+  RangeNotSatisfiable: 416,
+  ExpectationFailed: 417,
+  ImATeapot: 418,
+  MisdirectedRequest: 421,
+  UnprocessableEntity: 422,
+  Locked: 423,
+  FailedDependency: 424,
+  TooEarly: 425,
+  UpgradeRequired: 426,
+  PreconditionRequired: 428,
+  TooManyRequests: 429,
+  RequestHeaderFieldsTooLarge: 431,
+  UnavailableForLegalReasons: 451,
+  InternalServerError: 500,
+  NotImplemented: 501,
+  BadGateway: 502,
+  ServiceUnavailable: 503,
+  GatewayTimeout: 504,
+  HttpVersionNotSupported: 505,
+  VariantAlsoNegotiates: 506,
+  InsufficientStorage: 507,
+  LoopDetected: 508,
+  NotExtended: 510,
+  NetworkAuthenticationRequired: 511,
+} as const;
+
+export type HttpStatusCodeType = (typeof HttpStatusCode)[keyof typeof HttpStatusCode];