From 81d5dbbb7e9050742a8aa35ecfaea61ad9a624be Mon Sep 17 00:00:00 2001
From: Connor Skees <connor1skees@gmail.com>
Date: Sun, 4 Jul 2021 16:19:38 -0400
Subject: [PATCH] implement math.div

---
 src/builtin/functions/math.rs | 17 +++++++++++++++++
 src/builtin/modules/math.rs   |  3 ++-
 tests/math-module.rs          | 10 ++++++++++
 3 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/builtin/functions/math.rs b/src/builtin/functions/math.rs
index 2c19c08..126d87a 100644
--- a/src/builtin/functions/math.rs
+++ b/src/builtin/functions/math.rs
@@ -7,6 +7,7 @@ use rand::Rng;
 
 use crate::{
     args::CallArgs,
+    common::Op,
     error::SassResult,
     parse::{HigherIntermediateValue, Parser, ValueVisitor},
     unit::Unit,
@@ -270,6 +271,22 @@ pub(crate) fn max(args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value>
     Ok(Value::Dimension(Some(max.0), max.1, true))
 }
 
+pub(crate) fn divide(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+    args.max_args(2)?;
+
+    let number1 = args.get_err(0, "number1")?;
+    let number2 = args.get_err(1, "number2")?;
+
+    ValueVisitor::new(parser, args.span()).eval(
+        HigherIntermediateValue::BinaryOp(
+            Box::new(HigherIntermediateValue::Literal(number1)),
+            Op::Div,
+            Box::new(HigherIntermediateValue::Literal(number2)),
+        ),
+        true,
+    )
+}
+
 pub(crate) fn declare(f: &mut GlobalFunctionMap) {
     f.insert("percentage", Builtin::new(percentage));
     f.insert("round", Builtin::new(round));
diff --git a/src/builtin/modules/math.rs b/src/builtin/modules/math.rs
index ecc553b..aa886e3 100644
--- a/src/builtin/modules/math.rs
+++ b/src/builtin/modules/math.rs
@@ -5,7 +5,7 @@ use num_traits::{One, Signed, Zero};
 use crate::{
     args::CallArgs,
     builtin::{
-        math::{abs, ceil, comparable, floor, max, min, percentage, round},
+        math::{abs, ceil, comparable, divide, floor, max, min, percentage, round},
         meta::{unit, unitless},
         modules::Module,
     },
@@ -607,6 +607,7 @@ pub(crate) fn declare(f: &mut Module) {
     f.insert_builtin("log", log);
     f.insert_builtin("pow", pow);
     f.insert_builtin("hypot", hypot);
+    f.insert_builtin("div", divide);
     f.insert_builtin("atan2", atan2);
     #[cfg(feature = "random")]
     f.insert_builtin("random", random);
diff --git a/tests/math-module.rs b/tests/math-module.rs
index 4076df6..6f3f27a 100644
--- a/tests/math-module.rs
+++ b/tests/math-module.rs
@@ -588,3 +588,13 @@ test!(
     "@use 'sass:math';\na {\n  color: math.atan2(math.acos(2), 3deg);\n}\n",
     "a {\n  color: NaNdeg;\n}\n"
 );
+test!(
+    div_two_integers,
+    "@use 'sass:math';\na {\n  color: math.div(1, 2);\n}\n",
+    "a {\n  color: 0.5;\n}\n"
+);
+test!(
+    div_two_strings,
+    "@use 'sass:math';\na {\n  color: math.div(\"1\",\"2\");\n}\n",
+    "a {\n  color: \"1\"/\"2\";\n}\n"
+);