From 1e440a0d2cbc0942a6738598bb281836d9862846 Mon Sep 17 00:00:00 2001
From: Roland Fredenhagen <dev@modprog.de>
Date: Wed, 1 Feb 2023 00:57:10 +0100
Subject: [PATCH] fix calc whitespace (#71)

---
 crates/compiler/src/serializer.rs | 5 +++--
 crates/lib/tests/compressed.rs    | 6 ++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/crates/compiler/src/serializer.rs b/crates/compiler/src/serializer.rs
index 1ad1183..0552678 100644
--- a/crates/compiler/src/serializer.rs
+++ b/crates/compiler/src/serializer.rs
@@ -5,7 +5,7 @@ use codemap::{CodeMap, Span};
 use crate::{
     ast::{CssStmt, MediaQuery, Style, SupportsRule},
     color::{Color, ColorFormat, NAMED_COLORS},
-    common::{Brackets, ListSeparator, QuoteKind},
+    common::{BinaryOp, Brackets, ListSeparator, QuoteKind},
     error::SassResult,
     selector::{
         Combinator, ComplexSelector, ComplexSelectorComponent, CompoundSelector, Namespace, Pseudo,
@@ -358,7 +358,8 @@ impl<'a> Serializer<'a> {
                     self.buffer.push(b')');
                 }
 
-                let operator_whitespace = !self.options.is_compressed() || op.precedence() == 1;
+                let operator_whitespace =
+                    !self.options.is_compressed() || matches!(op, BinaryOp::Plus | BinaryOp::Minus);
 
                 if operator_whitespace {
                     self.buffer.push(b' ');
diff --git a/crates/lib/tests/compressed.rs b/crates/lib/tests/compressed.rs
index 975e95d..a5a2549 100644
--- a/crates/lib/tests/compressed.rs
+++ b/crates/lib/tests/compressed.rs
@@ -146,3 +146,9 @@ test!(
     "a{color:a/b/c}",
     grass::Options::default().style(grass::OutputStyle::Compressed)
 );
+test!(
+    calc,
+    "a {\n  width: calc(100% + 32px);\n}\n",
+    "a{width:calc(100% + 32px)}",
+    grass::Options::default().style(grass::OutputStyle::Compressed)
+);