reifydb_routine/function/math/
atan2.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use num_traits::ToPrimitive;
5use reifydb_core::value::column::{ColumnWithName, buffer::ColumnBuffer, columns::Columns};
6use reifydb_type::value::r#type::{Type, input_types::InputTypes};
7
8use crate::routine::{Function, FunctionKind, Routine, RoutineInfo, context::FunctionContext, error::RoutineError};
9
10pub struct Atan2 {
11	info: RoutineInfo,
12}
13
14impl Default for Atan2 {
15	fn default() -> Self {
16		Self::new()
17	}
18}
19
20impl Atan2 {
21	pub fn new() -> Self {
22		Self {
23			info: RoutineInfo::new("math::atan2"),
24		}
25	}
26}
27
28fn numeric_to_f64(data: &ColumnBuffer, i: usize) -> Option<f64> {
29	match data {
30		ColumnBuffer::Int1(c) => c.get(i).map(|&v| v as f64),
31		ColumnBuffer::Int2(c) => c.get(i).map(|&v| v as f64),
32		ColumnBuffer::Int4(c) => c.get(i).map(|&v| v as f64),
33		ColumnBuffer::Int8(c) => c.get(i).map(|&v| v as f64),
34		ColumnBuffer::Int16(c) => c.get(i).map(|&v| v as f64),
35		ColumnBuffer::Uint1(c) => c.get(i).map(|&v| v as f64),
36		ColumnBuffer::Uint2(c) => c.get(i).map(|&v| v as f64),
37		ColumnBuffer::Uint4(c) => c.get(i).map(|&v| v as f64),
38		ColumnBuffer::Uint8(c) => c.get(i).map(|&v| v as f64),
39		ColumnBuffer::Uint16(c) => c.get(i).map(|&v| v as f64),
40		ColumnBuffer::Float4(c) => c.get(i).map(|&v| v as f64),
41		ColumnBuffer::Float8(c) => c.get(i).copied(),
42		ColumnBuffer::Int {
43			container,
44			..
45		} => container.get(i).map(|v| v.0.to_f64().unwrap_or(0.0)),
46		ColumnBuffer::Uint {
47			container,
48			..
49		} => container.get(i).map(|v| v.0.to_f64().unwrap_or(0.0)),
50		ColumnBuffer::Decimal {
51			container,
52			..
53		} => container.get(i).map(|v| v.0.to_f64().unwrap_or(0.0)),
54		_ => None,
55	}
56}
57
58impl<'a> Routine<FunctionContext<'a>> for Atan2 {
59	fn info(&self) -> &RoutineInfo {
60		&self.info
61	}
62
63	fn return_type(&self, _input_types: &[Type]) -> Type {
64		Type::Float8
65	}
66
67	fn execute(&self, ctx: &mut FunctionContext<'a>, args: &Columns) -> Result<Columns, RoutineError> {
68		if args.len() != 2 {
69			return Err(RoutineError::FunctionArityMismatch {
70				function: ctx.fragment.clone(),
71				expected: 2,
72				actual: args.len(),
73			});
74		}
75
76		let y_col = &args[0];
77		let x_col = &args[1];
78
79		let (y_data, y_bitvec) = y_col.unwrap_option();
80		let (x_data, x_bitvec) = x_col.unwrap_option();
81		let row_count = y_data.len();
82
83		if !y_data.get_type().is_number() {
84			return Err(RoutineError::FunctionInvalidArgumentType {
85				function: ctx.fragment.clone(),
86				argument_index: 0,
87				expected: InputTypes::numeric().expected_at(0).to_vec(),
88				actual: y_data.get_type(),
89			});
90		}
91
92		if !x_data.get_type().is_number() {
93			return Err(RoutineError::FunctionInvalidArgumentType {
94				function: ctx.fragment.clone(),
95				argument_index: 1,
96				expected: InputTypes::numeric().expected_at(0).to_vec(),
97				actual: x_data.get_type(),
98			});
99		}
100
101		let mut result = Vec::with_capacity(row_count);
102		let mut res_bitvec = Vec::with_capacity(row_count);
103
104		for i in 0..row_count {
105			match (numeric_to_f64(y_data, i), numeric_to_f64(x_data, i)) {
106				(Some(y), Some(x)) => {
107					result.push(y.atan2(x));
108					res_bitvec.push(true);
109				}
110				_ => {
111					result.push(0.0);
112					res_bitvec.push(false);
113				}
114			}
115		}
116
117		let result_data = ColumnBuffer::float8_with_bitvec(result, res_bitvec);
118
119		// Combine bitvecs if either column has options
120		let combined_bitvec = match (y_bitvec, x_bitvec) {
121			(Some(y_bv), Some(x_bv)) => Some(y_bv.and(x_bv)),
122			(Some(y_bv), None) => Some(y_bv.clone()),
123			(None, Some(x_bv)) => Some(x_bv.clone()),
124			(None, None) => None,
125		};
126
127		let final_data = if let Some(bv) = combined_bitvec {
128			ColumnBuffer::Option {
129				inner: Box::new(result_data),
130				bitvec: bv,
131			}
132		} else {
133			result_data
134		};
135
136		Ok(Columns::new(vec![ColumnWithName::new(ctx.fragment.clone(), final_data)]))
137	}
138}
139
140impl Function for Atan2 {
141	fn kinds(&self) -> &[FunctionKind] {
142		&[FunctionKind::Scalar]
143	}
144}
reifydb_routine/function/math/atan2.rs

reifydb_routine/function/math/
atan2.rs
