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templater: add helper that maps FunctionCallNode to error

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This commit is contained in:
Yuya Nishihara 2024-05-21 12:39:22 +09:00
parent da005444e1
commit e5fca8fadd
1 changed files with 11 additions and 11 deletions
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22
cli/src/template_parser.rs
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@ -691,9 +691,10 @@ impl<'i> FunctionCallNode<'i> {
pub fn expect_exact_arguments<const N: usize>(
&self,
) -> TemplateParseResult<&[ExpressionNode<'i>; N]> {
self.args.as_slice().try_into().map_err(|_| {
TemplateParseError::invalid_arguments(self, format!("Expected {N} arguments"))
})
self.args
.as_slice()
.try_into()
.map_err(|_| self.invalid_arguments(format!("Expected {N} arguments")))
}
/// Extracts N required arguments and remainders.
@ -704,10 +705,7 @@ impl<'i> FunctionCallNode<'i> {
let (required, rest) = self.args.split_at(N);
Ok((required.try_into().unwrap(), rest))
} else {
Err(TemplateParseError::invalid_arguments(
self,
format!("Expected at least {N} arguments"),
))
Err(self.invalid_arguments(format!("Expected at least {N} arguments")))
}
}
@ -722,12 +720,14 @@ impl<'i> FunctionCallNode<'i> {
optional.resize(M, None);
Ok((required.try_into().unwrap(), optional.try_into().unwrap()))
} else {
Err(TemplateParseError::invalid_arguments(
self,
format!("Expected {min} to {max} arguments", min = N, max = N + M),
))
let (min, max) = count_range.into_inner();
Err(self.invalid_arguments(format!("Expected {min} to {max} arguments")))
}
}
fn invalid_arguments(&self, message: String) -> TemplateParseError {
TemplateParseError::invalid_arguments(self, message)
}
}
/// Applies the given function if the `node` is a string literal.