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use super::{Field, Metadata};
#[cfg(feature = "serde_types")]
use serde_derive::{Deserialize, Serialize};
#[derive(Debug, Clone, PartialEq, Eq, Default)]
#[cfg_attr(feature = "serde_types", derive(Serialize, Deserialize))]
pub struct Schema {
pub fields: Vec<Field>,
pub metadata: Metadata,
}
impl Schema {
#[inline]
pub fn with_metadata(self, metadata: Metadata) -> Self {
Self {
fields: self.fields,
metadata,
}
}
pub fn filter<F: Fn(usize, &Field) -> bool>(self, predicate: F) -> Self {
let fields = self
.fields
.into_iter()
.enumerate()
.filter_map(|(index, f)| {
if (predicate)(index, &f) {
Some(f)
} else {
None
}
})
.collect();
Schema {
fields,
metadata: self.metadata,
}
}
}
impl From<Vec<Field>> for Schema {
fn from(fields: Vec<Field>) -> Self {
Self {
fields,
..Default::default()
}
}
}