surrealdb_expr/expr/statements/
foreach.rs

1use common::range::IntegerRangeIter;
2
3use crate::expr::{Block, Expr, Param, Value};
4
5#[derive(Clone, Debug, Eq, PartialEq, Hash)]
6pub struct ForeachStatement {
7	pub param: Param,
8	pub range: Expr,
9	pub block: Block,
10}
11
12pub enum ForeachIter {
13	Array(std::vec::IntoIter<Value>),
14	Range(std::iter::Map<IntegerRangeIter, fn(i64) -> Value>),
15}
16
17impl Iterator for ForeachIter {
18	type Item = Value;
19
20	fn next(&mut self) -> Option<Self::Item> {
21		match self {
22			ForeachIter::Array(iter) => iter.next(),
23			ForeachIter::Range(iter) => iter.next(),
24		}
25	}
26}
27
28impl ForeachStatement {
29	/// Check if we require a writeable transaction
30	pub fn read_only(&self) -> bool {
31		self.range.read_only() && self.block.read_only()
32	}
33}

surrealdb_expr/expr/statements/foreach.rs

surrealdb_expr/expr/statements/
foreach.rs