Enum filecheck::Error

pub enum Error {
    Syntax(String),
    UndefVariable(String),
    Backref(String),
    DuplicateDef(String),
    Regex(Error),
}

A filecheck error.

Variants

Syntax(String)

A syntax error in a check line.

UndefVariable(String)

A check refers to an undefined variable.

The pattern contains $foo where the foo variable has not yet been defined. Use $$ to match a literal dollar sign.

Backref(String)

A pattern contains a back-reference to a variable that was defined in the same pattern.

For example, check: Hello $(world=.*) $world. Backreferences are not supported. Often the desired effect can be achieved with the sameln check:

check: Hello $(world=[^ ]*)
sameln: $world

DuplicateDef(String)

A pattern contains multiple definitions of the same variable.

Regex(Error)

An error in a regular expression.

Use cause() to get the underlying Regex library error.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, __formatter: &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 backtrace(&self) -> Option<&Backtrace>

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

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

fn description(&self) -> &str

Deprecated since 1.42.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

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

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Error> for Error

fn from(source: Error) -> Self

Performs the conversion.