reifydb_routine/function/math/
pi.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use std::f64::consts::PI;
5
6use reifydb_core::value::column::{Column, columns::Columns, data::ColumnData};
7use reifydb_type::value::r#type::Type;
8
9use crate::function::{Function, FunctionCapability, FunctionContext, FunctionInfo, error::FunctionError};
10
11pub struct Pi {
12	info: FunctionInfo,
13}
14
15impl Default for Pi {
16	fn default() -> Self {
17		Self::new()
18	}
19}
20
21impl Pi {
22	pub fn new() -> Self {
23		Self {
24			info: FunctionInfo::new("math::pi"),
25		}
26	}
27}
28
29impl Function for Pi {
30	fn info(&self) -> &FunctionInfo {
31		&self.info
32	}
33
34	fn capabilities(&self) -> &[FunctionCapability] {
35		&[FunctionCapability::Scalar]
36	}
37
38	fn return_type(&self, _input_types: &[Type]) -> Type {
39		Type::Float8
40	}
41
42	fn execute(&self, ctx: &FunctionContext, args: &Columns) -> Result<Columns, FunctionError> {
43		if !args.is_empty() {
44			return Err(FunctionError::ArityMismatch {
45				function: ctx.fragment.clone(),
46				expected: 0,
47				actual: args.len(),
48			});
49		}
50
51		Ok(Columns::new(vec![Column::new(ctx.fragment.clone(), ColumnData::float8(vec![PI]))]))
52	}
53}
reifydb_routine/function/math/pi.rs

reifydb_routine/function/math/
pi.rs
