Enum Error 

pub enum Error {
    UnexpectedToken {
        token: Box<Token>,
        expected: Vec<Symbol>,
        trace: Vec<Token>,
    },
    UnexpectedEOF {
        token: Box<Token>,
    },
    ExpectedIdent {
        token: Box<Token>,
        trace: Vec<Token>,
    },
    UnknownDirective {
        directive: Box<Token>,
        trace: Vec<Token>,
    },
    DefineMultiTokenArgument {
        token: Box<Token>,
        trace: Vec<Token>,
    },
    ChangeBuiltin {
        token: Box<Token>,
        trace: Vec<Token>,
    },
    IfUnitOrFunction {
        token: Box<Token>,
        trace: Vec<Token>,
    },
    IfUndefined {
        token: Box<Token>,
        trace: Vec<Token>,
    },
    FunctionCallArgumentCount {
        token: Box<Token>,
        expected: usize,
        got: usize,
        trace: Vec<Token>,
        defines: Defines,
    },
    ExpectedFunctionOrValue {
        token: Box<Token>,
        trace: Vec<Token>,
        skipped: Vec<Token>,
    },
    ResolveWithNoResolver {
        token: Box<Token>,
        trace: Vec<Token>,
    },
    IncludeNotFound {
        target: Vec<Token>,
        trace: Vec<Token>,
    },
    Io(Box<Error>),
    Pest(Box<Error<Rule>>),
}

Errors that can occur during preprocessing

Variants

UnexpectedToken

Expected a token, found something else

Fields

token: Box<Token>

The Token that was found

expected: Vec<Symbol>

The valid Symbols that were expected

trace: Vec<Token>

The Token stack trace

UnexpectedEOF

Unexpected end of file

Fields

token: Box<Token>

The token that was found

ExpectedIdent

Expected an identifier, found something else

Fields

token: Box<Token>

The Token that was found

trace: Vec<Token>

The Token stack trace

UnknownDirective

Unknown directive

Fields

directive: Box<Token>

The Token that was found

trace: Vec<Token>

The Token stack trace

DefineMultiTokenArgument

Tried to create a FunctionDefinition that has multi-token arguments

#define FUNC(my arg) ...

Fields

token: Box<Token>

The Token that was found

trace: Vec<Token>

The Token stack trace

ChangeBuiltin

Tried to change a built-in macro

Fields

token: Box<Token>

The Token that was found

trace: Vec<Token>

The Token stack trace

IfUnitOrFunction

Tried to use #if on a Unit or FunctionDefinition

Fields

token: Box<Token>

The Token that was found

trace: Vec<Token>

The Token stack trace

IfUndefined

Tried to use #if on an undefined macro

Fields

token: Box<Token>

The Token that was found

trace: Vec<Token>

The Token stack trace

FunctionCallArgumentCount

Tried to call a FunctionDefinition with the wrong number of arguments

Fields

token: Box<Token>

The Token that was found

expected: usize

The number of arguments that were expected

got: usize

The number of arguments that were found

trace: Vec<Token>

The Token stack trace

defines: Defines

The defines at the point of the error

ExpectedFunctionOrValue

Tried to use a Unit as a function or value

Fields

token: Box<Token>

The Token that was found

trace: Vec<Token>

The Token stack trace

skipped: Vec<Token>

Skipped tokens of Unit

ResolveWithNoResolver

Tried to use #include with NoResolver

Fields

token: Box<Token>

The Token stack trace

trace: Vec<Token>

The Token stack trace

IncludeNotFound

The Resolver could not find the target

Fields

target: Vec<Token>

The target that was not found

trace: Vec<Token>

The Token stack trace

Io(Box<Error>)

std::io::Error

Pest(Box<Error<Rule>>)

pest::error::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)>

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<Rule>> for Error

fn from(e: Error<Rule>) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(e: Error) -> Self

Converts to this type from the input type.

impl PrettyError for Error

fn brief(&self) -> String

fn details(&self) -> Option<String>

fn help(&self) -> Option<String>

fn source(&self) -> Option<Box<Source>>

fn trace(&self) -> Vec<Source>