From a5b2c195113870d322d405c64b1111a58b06657a Mon Sep 17 00:00:00 2001
From: Yaroslav Bolyukin <iam@lach.pw>
Date: Thu, 30 Nov 2023 21:45:36 +0100
Subject: [PATCH] feat: add std.atan2

Fixes: https://github.com/CertainLach/jrsonnet/issues/141
Fixes: https://github.com/google/jsonnet/issues/1118
---
 crates/jrsonnet-stdlib/src/lib.rs  | 1 +
 crates/jrsonnet-stdlib/src/math.rs | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/crates/jrsonnet-stdlib/src/lib.rs b/crates/jrsonnet-stdlib/src/lib.rs
index c5dcea12..6f1f9413 100644
--- a/crates/jrsonnet-stdlib/src/lib.rs
+++ b/crates/jrsonnet-stdlib/src/lib.rs
@@ -104,6 +104,7 @@ pub fn stdlib_uncached(settings: Rc<RefCell<Settings>>) -> ObjValue {
 		("asin", builtin_asin::INST),
 		("acos", builtin_acos::INST),
 		("atan", builtin_atan::INST),
+		("atan2", builtin_atan2::INST),
 		("exp", builtin_exp::INST),
 		("mantissa", builtin_mantissa::INST),
 		("exponent", builtin_exponent::INST),
diff --git a/crates/jrsonnet-stdlib/src/math.rs b/crates/jrsonnet-stdlib/src/math.rs
index c1a0d54a..d124cd3c 100644
--- a/crates/jrsonnet-stdlib/src/math.rs
+++ b/crates/jrsonnet-stdlib/src/math.rs
@@ -89,6 +89,11 @@ pub fn builtin_atan(x: f64) -> f64 {
 	x.atan()
 }
 
+#[builtin]
+pub fn builtin_atan2(y: f64, x: f64) -> f64 {
+	y.atan2(x)
+}
+
 #[builtin]
 pub fn builtin_exp(x: f64) -> f64 {
 	x.exp()