Rename private Context to ErrorContext (Azure#1780)

To avoid confusion with our HTTP client `Context`, even if private so it
doesn't show up in symbol searches. Resolves Azure#1778

sdk/typespec/src/error/mod.rs

@@ -37,7 +37,7 @@ impl ErrorKind {
  /// Consumes the `ErrorKind` and converts to an [`Error`].
  pub fn into_error(self) -> Error {
  Error {
- context: Context::Simple(self),
+ context: ErrorContext::Simple(self),
  }
  }
 
@@ -71,7 +71,7 @@ impl Display for ErrorKind {
 /// An error encountered when communicating with the service.
 #[derive(Debug)]
 pub struct Error {
- context: Context,
+ context: ErrorContext,
 }
 
 impl Error {
@@ -81,7 +81,7 @@ impl Error {
  E: Into<Box<dyn std::error::Error + Send + Sync>>,
  {
  Self {
- context: Context::Custom(Custom {
+ context: ErrorContext::Custom(Custom {
  kind,
  error: error.into(),
  }),
@@ -97,7 +97,7 @@ impl Error {
  C: Into<Cow<'static, str>>,
  {
  Self {
- context: Context::Full(
+ context: ErrorContext::Full(
  Custom {
  kind,
  error: error.into(),
@@ -114,7 +114,7 @@ impl Error {
  C: Into<Cow<'static, str>>,
  {
  Self {
- context: Context::Message {
+ context: ErrorContext::Message {
  kind,
  message: message.into(),
  },
@@ -130,7 +130,7 @@ impl Error {
  C: Into<Cow<'static, str>>,
  {
  Self {
- context: Context::Message {
+ context: ErrorContext::Message {
  kind,
  message: message().into(),
  },
@@ -159,19 +159,18 @@ impl Error {
  /// Get the [`ErrorKind`] of this `Error`.
  pub fn kind(&self) -> &ErrorKind {
  match &self.context {
- Context::Simple(kind)
- | Context::Message { kind, .. }
- | Context::Custom(Custom { kind, .. })
- | Context::Full(Custom { kind, .. }, _) => kind,
+ ErrorContext::Simple(kind)
+ | ErrorContext::Message { kind, .. }
+ | ErrorContext::Custom(Custom { kind, .. })
+ | ErrorContext::Full(Custom { kind, .. }, _) => kind,
  }
  }
 
  /// Consumes the `Error`, returning its inner error, if any.
  pub fn into_inner(self) -> std::result::Result<Box<dyn std::error::Error + Send + Sync>, Self> {
  match self.context {
- Context::Custom(Custom { error, .. }) | Context::Full(Custom { error, .. }, _) => {
- Ok(error)
- }
+ ErrorContext::Custom(Custom { error, .. })
+ | ErrorContext::Full(Custom { error, .. }, _) => Ok(error),
  _ => Err(self),
  }
  }
@@ -193,9 +192,8 @@ impl Error {
  /// Returns a reference to the inner error wrapped by this error, if any.
  pub fn get_ref(&self) -> Option<&(dyn std::error::Error + Send + Sync + 'static)> {
  match &self.context {
- Context::Custom(Custom { error, .. }) | Context::Full(Custom { error, .. }, _) => {
- Some(error.as_ref())
- }
+ ErrorContext::Custom(Custom { error, .. })
+ | ErrorContext::Full(Custom { error, .. }, _) => Some(error.as_ref()),
  _ => None,
  }
  }
@@ -208,9 +206,8 @@ impl Error {
  /// Returns a mutable reference to the inner error wrapped by this error, if any.
  pub fn get_mut(&mut self) -> Option<&mut (dyn std::error::Error + Send + Sync + 'static)> {
  match &mut self.context {
- Context::Custom(Custom { error, .. }) | Context::Full(Custom { error, .. }, _) => {
- Some(error.as_mut())
- }
+ ErrorContext::Custom(Custom { error, .. })
+ | ErrorContext::Full(Custom { error, .. }, _) => Some(error.as_mut()),
  _ => None,
  }
  }
@@ -224,9 +221,8 @@ impl Error {
 impl std::error::Error for Error {
  fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
  match &self.context {
- Context::Custom(Custom { error, .. }) | Context::Full(Custom { error, .. }, _) => {
- Some(&**error)
- }
+ ErrorContext::Custom(Custom { error, .. })
+ | ErrorContext::Full(Custom { error, .. }, _) => Some(&**error),
  _ => None,
  }
  }
@@ -235,7 +231,7 @@ impl std::error::Error for Error {
 impl From<ErrorKind> for Error {
  fn from(kind: ErrorKind) -> Self {
  Self {
- context: Context::Simple(kind),
+ context: ErrorContext::Simple(kind),
  }
  }
 }
@@ -280,10 +276,10 @@ impl From<url::ParseError> for Error {
 impl Display for Error {
  fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
  match &self.context {
- Context::Simple(kind) => write!(f, "{kind}"),
- Context::Message { message, .. } => write!(f, "{message}"),
- Context::Custom(Custom { error, .. }) => write!(f, "{error}"),
- Context::Full(_, message) => {
+ ErrorContext::Simple(kind) => write!(f, "{kind}"),
+ ErrorContext::Message { message, .. } => write!(f, "{message}"),
+ ErrorContext::Custom(Custom { error, .. }) => write!(f, "{error}"),
+ ErrorContext::Full(_, message) => {
  write!(f, "{message}")
  }
  }
@@ -336,7 +332,7 @@ where
  C: Into<Cow<'static, str>>,
  {
  self.map_err(|e| Error {
- context: Context::Full(
+ context: ErrorContext::Full(
  Custom {
  error: Box::new(e),
  kind,
@@ -357,7 +353,7 @@ where
 }
 
 #[derive(Debug)]
-enum Context {
+enum ErrorContext {
  Simple(ErrorKind),
  Message {
  kind: ErrorKind,