36 lines
801 B
Rust
36 lines
801 B
Rust
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//! Raw input relations with positional columns.
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//!
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//! Tables are the input to atom scans. They carry no column names: positions
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//! are matched against an [`AtomPattern`](crate::atom::AtomPattern).
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use crate::value::Value;
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#[derive(Debug, Clone)]
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pub struct Table {
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pub arity: usize,
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pub rows: Vec<Vec<Value>>,
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}
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impl Table {
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#[must_use]
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pub fn new(arity: usize) -> Self {
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Self {
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arity,
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rows: Vec::new(),
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}
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}
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/// # Panics
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/// Panics if `row.len() != self.arity`.
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pub fn push(&mut self, row: Vec<Value>) {
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assert_eq!(
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row.len(),
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self.arity,
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"row arity mismatch: expected {}, got {}",
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self.arity,
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row.len(),
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);
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self.rows.push(row);
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}
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}
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