Enum GraphvizError

pub enum GraphvizError {
    GraphCreationFailed,
    NodeCreationFailed,
    EdgeCreationFailed,
    LayoutFailed,
    RenderFailed,
    InvalidString,
    AttributeSetFailed,
    AttributeGetFailed,
    FreeLayoutFailed,
    InvalidUtf8,
    NullPointer(&'static str),
    ContextCreationFailed,
    InvalidFormat,
    InvalidEngine,
    InitializationFailed,
    CleanupFailed,
    SystemError(i32),
    IoError(Error),
}

Enumeration of all possible errors that can occur during GraphViz operations.

Variants

GraphCreationFailed

Error creating a graph structure

NodeCreationFailed

Error creating a node structure

EdgeCreationFailed

Error creating an edge structure

LayoutFailed

Error during layout computation

RenderFailed

Error during rendering process

InvalidString

Invalid string for C FFI (contains null bytes)

AttributeSetFailed

Error setting an attribute

AttributeGetFailed

Error getting an attribute

FreeLayoutFailed

Error freeing layout resources

InvalidUtf8

String is not valid UTF-8

NullPointer(&'static str)

Null pointer encountered

ContextCreationFailed

Context creation failed

InvalidFormat

Invalid format specified

InvalidEngine

Invalid engine specified

InitializationFailed

Failed to initialize GraphViz

CleanupFailed

Failed to clean up GraphViz resources

SystemError(i32)

System error (with errno)

IoError(Error)

File I/O error

Trait Implementations

impl Debug for GraphvizError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for GraphvizError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for GraphvizError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for GraphvizError

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<NulError> for GraphvizError

fn from(_: NulError) -> Self

Converts to this type from the input type.

impl From<Utf8Error> for GraphvizError

fn from(_: Utf8Error) -> Self

Converts to this type from the input type.