Enum gpp::Error

pub enum Error {
    InvalidCommand {
        command_name: String,
    },
    TooManyParameters {
        command: &'static str,
    },
    UnexpectedCommand {
        command: &'static str,
    },
    ChildFailed {
        status: ExitStatus,
    },
    PipeFailed,
    IoError(Error),
    FromUtf8Error(FromUtf8Error),
    FileError {
        filename: String,
        line: usize,
        error: Box<Error>,
    },
}

Error enum for parsing errors.

This type implements std::fmt::Display, and so can easily be printed with println!.

Examples

let error = gpp::Error::TooManyParameters { command: "my_command" };
assert_eq!(format!("{}", error), "Too many parameters for #my_command");

let error = gpp::Error::FileError {
    filename: String::from("my_file"),
    line: 10,
    error: Box::new(gpp::Error::UnexpectedCommand {
        command: "this_command",
    }),
};
assert_eq!(format!("{}", error), "Error in my_file:10: Unexpected command #this_command");

Variants

InvalidCommand

An unknown command was encountered.

Fields of InvalidCommand

command_name: String

TooManyParameters

Too many parameters were given for a command (for example using #endif with parameters).

Fields of TooManyParameters

command: &'static str

UnexpectedCommand

There was an unexpected command; currently only generated for unexpected #endins.

Fields of UnexpectedCommand

command: &'static str

ChildFailed

The child process for an #exec exited with a nonzero status.

Fields of ChildFailed

status: ExitStatus

PipeFailed

A pipe was unable to be set up to the child.

IoError(Error)

An error with I/O occurred.

FromUtf8Error(FromUtf8Error)

An error occurred parsing a child's standard output as UTF-8.

FileError

An error occurred in another file.

Fields of FileError

filename: Stringline: usizeerror: Box<Error>

Trait Implementations

impl From<Error> for Error

fn from(e: Error) -> Self

Performs the conversion.

impl From<FromUtf8Error> for Error

fn from(e: FromUtf8Error) -> Self

Performs the conversion.

impl Display for Error

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

Formats the value using the given formatter.

impl Debug for Error

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

Formats the value using the given formatter.

impl Error for Error

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

The lower-level source of this error, if any.

fn description(&self) -> &str

This method is soft-deprecated.

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

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

The lower-level cause of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error ocurred.