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use rustpython_parser::error::{ParseError, ParseErrorType};
use rustpython_parser::lexer::Location;
use std::error::Error;
use std::fmt;
#[derive(Debug)]
pub struct CompileError {
pub error: CompileErrorType,
pub location: Location,
}
impl From<ParseError> for CompileError {
fn from(error: ParseError) -> Self {
CompileError {
error: CompileErrorType::Parse(error.error),
location: error.location,
}
}
}
#[derive(Debug)]
pub enum CompileErrorType {
Assign(&'static str),
Delete(&'static str),
ExpectExpr,
Parse(ParseErrorType),
SyntaxError(String),
StarArgs,
InvalidBreak,
InvalidContinue,
InvalidReturn,
InvalidYield,
}
impl fmt::Display for CompileError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match &self.error {
CompileErrorType::Assign(target) => write!(f, "can't assign to {}", target),
CompileErrorType::Delete(target) => write!(f, "can't delete {}", target),
CompileErrorType::ExpectExpr => write!(f, "Expecting expression, got statement"),
CompileErrorType::Parse(err) => write!(f, "{}", err),
CompileErrorType::SyntaxError(err) => write!(f, "{}", err),
CompileErrorType::StarArgs => write!(f, "Two starred expressions in assignment"),
CompileErrorType::InvalidBreak => write!(f, "'break' outside loop"),
CompileErrorType::InvalidContinue => write!(f, "'continue' outside loop"),
CompileErrorType::InvalidReturn => write!(f, "'return' outside function"),
CompileErrorType::InvalidYield => write!(f, "'yield' outside function"),
}?;
write!(f, " at {}", self.location)
}
}
impl Error for CompileError {
fn source(&self) -> Option<&(dyn Error + 'static)> {
None
}
}