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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /third_party/rust/libloading/src/error.rs
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/libloading/src/error.rs')
-rw-r--r--third_party/rust/libloading/src/error.rs130
1 files changed, 130 insertions, 0 deletions
diff --git a/third_party/rust/libloading/src/error.rs b/third_party/rust/libloading/src/error.rs
new file mode 100644
index 0000000000..bd70ec39ce
--- /dev/null
+++ b/third_party/rust/libloading/src/error.rs
@@ -0,0 +1,130 @@
+use std::ffi::CString;
+
+/// A `dlerror` error.
+pub struct DlDescription(pub(crate) CString);
+
+impl std::fmt::Debug for DlDescription {
+ fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+ std::fmt::Debug::fmt(&self.0, f)
+ }
+}
+
+/// A Windows API error.
+pub struct WindowsError(pub(crate) std::io::Error);
+
+impl std::fmt::Debug for WindowsError {
+ fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+ std::fmt::Debug::fmt(&self.0, f)
+ }
+}
+
+/// Errors.
+#[derive(Debug)]
+#[non_exhaustive]
+pub enum Error {
+ /// The `dlopen` call failed.
+ DlOpen {
+ /// The source error.
+ desc: DlDescription
+ },
+ /// The `dlopen` call failed and system did not report an error.
+ DlOpenUnknown,
+ /// The `dlsym` call failed.
+ DlSym {
+ /// The source error.
+ desc: DlDescription
+ },
+ /// The `dlsym` call failed and system did not report an error.
+ DlSymUnknown,
+ /// The `dlclose` call failed.
+ DlClose {
+ /// The source error.
+ desc: DlDescription
+ },
+ /// The `dlclose` call failed and system did not report an error.
+ DlCloseUnknown,
+ /// The `LoadLibraryW` call failed.
+ LoadLibraryExW {
+ /// The source error.
+ source: WindowsError
+ },
+ /// The `LoadLibraryW` call failed and system did not report an error.
+ LoadLibraryExWUnknown,
+ /// The `GetModuleHandleExW` call failed.
+ GetModuleHandleExW {
+ /// The source error.
+ source: WindowsError
+ },
+ /// The `GetModuleHandleExW` call failed and system did not report an error.
+ GetModuleHandleExWUnknown,
+ /// The `GetProcAddress` call failed.
+ GetProcAddress {
+ /// The source error.
+ source: WindowsError
+ },
+ /// The `GetProcAddressUnknown` call failed and system did not report an error.
+ GetProcAddressUnknown,
+ /// The `FreeLibrary` call failed.
+ FreeLibrary {
+ /// The source error.
+ source: WindowsError
+ },
+ /// The `FreeLibrary` call failed and system did not report an error.
+ FreeLibraryUnknown,
+ /// The requested type cannot possibly work.
+ IncompatibleSize,
+ /// Could not create a new CString.
+ CreateCString {
+ /// The source error.
+ source: std::ffi::NulError
+ },
+ /// Could not create a new CString from bytes with trailing null.
+ CreateCStringWithTrailing {
+ /// The source error.
+ source: std::ffi::FromBytesWithNulError
+ },
+}
+
+impl std::error::Error for Error {
+ fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+ use Error::*;
+ match *self {
+ CreateCString { ref source } => Some(source),
+ CreateCStringWithTrailing { ref source } => Some(source),
+ LoadLibraryExW { ref source } => Some(&source.0),
+ GetProcAddress { ref source } => Some(&source.0),
+ FreeLibrary { ref source } => Some(&source.0),
+ _ => None,
+ }
+ }
+}
+
+impl std::fmt::Display for Error {
+ fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+ use Error::*;
+ match *self {
+ DlOpen { ref desc } => write!(f, "{}", desc.0.to_string_lossy()),
+ DlOpenUnknown => write!(f, "dlopen failed, but system did not report the error"),
+ DlSym { ref desc } => write!(f, "{}", desc.0.to_string_lossy()),
+ DlSymUnknown => write!(f, "dlsym failed, but system did not report the error"),
+ DlClose { ref desc } => write!(f, "{}", desc.0.to_string_lossy()),
+ DlCloseUnknown => write!(f, "dlclose failed, but system did not report the error"),
+ LoadLibraryExW { .. } => write!(f, "LoadLibraryExW failed"),
+ LoadLibraryExWUnknown =>
+ write!(f, "LoadLibraryExW failed, but system did not report the error"),
+ GetModuleHandleExW { .. } => write!(f, "GetModuleHandleExW failed"),
+ GetModuleHandleExWUnknown =>
+ write!(f, "GetModuleHandleExWUnknown failed, but system did not report the error"),
+ GetProcAddress { .. } => write!(f, "GetProcAddress failed"),
+ GetProcAddressUnknown =>
+ write!(f, "GetProcAddress failed, but system did not report the error"),
+ FreeLibrary { .. } => write!(f, "FreeLibrary failed"),
+ FreeLibraryUnknown =>
+ write!(f, "FreeLibrary failed, but system did not report the error"),
+ CreateCString { .. } => write!(f, "could not create a C string from bytes"),
+ CreateCStringWithTrailing { .. } =>
+ write!(f, "could not create a C string from bytes with trailing null"),
+ IncompatibleSize => write!(f, "requested type cannot possibly work"),
+ }
+ }
+}