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fix unexpected token error when there is 1 possible token

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This commit is contained in:
Robin Appelman 2021-08-29 21:14:56 +02:00
commit 7239611c2a
1 changed files with 17 additions and 11 deletions
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28
src/error.rs
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@ -26,10 +26,12 @@ pub enum ParseError {
UnexpectedArrayKey(ArrayKeyError),
#[error("Trailing characters after parsing")]
#[diagnostic(code(php_object_parser::trailing))]
/// Trailing characters after parsing
TrailingCharacters,
#[error("{0}")]
#[diagnostic(code(php_object_parser::other))]
Custom(String),
#[diagnostic(code(php_object_parser::serde))]
/// Error while populating serde type
Serde(String),
}
impl serde::de::Error for ParseError {
@ -37,7 +39,7 @@ impl serde::de::Error for ParseError {
where
T: Display,
{
ParseError::Custom(msg.to_string())
ParseError::Serde(msg.to_string())
}
}
@ -90,14 +92,18 @@ impl From<&[Token]> for TokenList {
impl Display for TokenList {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
if !self.0.is_empty() {
let mut tokens = self.0[0..self.0.len() - 1].iter();
write!(f, "{}", tokens.next().unwrap())?;
for token in tokens {
write!(f, ", {}", token)?;
}
if self.0.len() > 1 {
write!(f, " or {}", self.0.last().unwrap())?;
match self.0.len() {
0 => {}
1 => write!(f, "{}", self.0[0])?,
_ => {
let mut tokens = self.0[0..self.0.len() - 1].iter();
write!(f, "{}", tokens.next().unwrap())?;
for token in tokens {
write!(f, ", {}", token)?;
}
if self.0.len() > 1 {
write!(f, " or {}", self.0.last().unwrap())?;
}
}
}
Ok(())