Enum GraphvizError 

pub enum GraphvizError {
    SyntaxError {
        line: i32,
        col: usize,
        message: String,
        file: Option<String>,
    },
    UnsupportedEngine(String),
    UnsupportedFormat(String),
    LayoutError {
        stage: &'static str,
        message: String,
    },
    AttributeError {
        attr: String,
        message: String,
    },
    RenderError(String),
}

Unified error type for graphviz-pure replacing C Graphviz’s graphviz_exit() and agerr().

Variants

SyntaxError

A DOT syntax error. message is worded as cgraph’s aagerror (lib/cgraph/scan.l), e.g. syntax error in line 3 near ';', and line is the line it reports (cgraph’s int line_num).

Fields

line: i32

col: usize

message: String

file: Option<String>

The file name set by a # N "file" line directive, which C reports instead of the input’s name.

UnsupportedEngine(String)

UnsupportedFormat(String)

LayoutError

Fields

stage: &'static str

message: String

AttributeError

Fields

attr: String

message: String

RenderError(String)

Trait Implementations

impl Clone for GraphvizError

fn clone(&self) -> GraphvizError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GraphvizError

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

Formats the value using the given formatter.

impl Display for GraphvizError

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

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 PartialEq for GraphvizError

fn eq(&self, other: &GraphvizError) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for GraphvizError