use super::ExprNode;
impl<'a> ExprNode<'a> {
pub fn nested(self) -> Self {
nested(self)
}
}
pub fn nested<'a, T: Into<ExprNode<'a>>>(expr: T) -> ExprNode<'a> {
ExprNode::Nested(Box::new(expr.into()))
}
#[cfg(test)]
mod tests {
use crate::ast_builder::{col, nested, test_expr};
#[test]
fn test_nested() {
let actual = col("val1").add(col("val2")).nested();
let expected = "(val1 + val2)";
test_expr(actual, expected);
let actual = nested(col("val1").add(col("val2")));
let expected = "(val1 + val2)";
test_expr(actual, expected);
}
}