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#[macro_export]
macro_rules! pdf_enum {
(
$(#[$attr:meta])*
$vis:vis enum $name:ident {
$(
$(#[$doc:meta])*
$variant:ident = $val:literal
),*,
}
) => {
$(#[$attr])*
$vis enum $name {
$(
$(#[$doc])*
$variant
),*,
}
impl $name {
pub fn from_str(s: &str) -> crate::PdfResult<Self> {
Ok(match s {
$($val => Self::$variant),*,
_ => return Err(crate::ParseError::UnrecognizedVariant {
ty: stringify!($name),
found: s.to_owned(),
})
})
}
}
};
(
int
$(#[$attr:meta])*
$vis:vis enum $name:ident {
$(
$(#[$doc:meta])*
$variant:ident = $val:literal
),*,
}
) => {
$(#[$attr])*
$vis enum $name {
$(
$(#[$doc])*
$variant = $val
),*,
}
impl $name {
pub fn from_integer(s: i32) -> crate::PdfResult<Self> {
Ok(match s {
$($val => Self::$variant),*,
_ => return Err(crate::ParseError::UnrecognizedVariant {
ty: stringify!($name),
found: s.to_string(),
})
})
}
}
};
}