Fix function-calc-no-unspaced-operator performance (#7505)

How to measure: ```shell npm run -s benchmark-rule -- function-calc-no-unspaced-operator true ``` Before: ``` Warnings: 0 Mean: 125.72145828571429 ms Deviation: 14.960783775263804 ms ``` After: ``` Warnings: 0 Mean: 110.21394642857142 ms Deviation: 10.1318139617483 ms ```
stylelint · Jan 30, 2024 · 5e2eff7 · 5e2eff7
1 parent 398d3a8
commit 5e2eff7
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diff --git a/.changeset/heavy-toys-wave.md b/.changeset/heavy-toys-wave.md
@@ -0,0 +1,5 @@
+---
+"stylelint": patch
+---
+
+Fixed: `function-calc-no-unspaced-operator` performance
diff --git a/lib/rules/function-calc-no-unspaced-operator/index.cjs b/lib/rules/function-calc-no-unspaced-operator/index.cjs
@@ -28,6 +28,7 @@ const meta = {
 const OPERATORS = new Set(['+', '-']);
 const OPERATOR_REGEX = /[+-]/;
 const ALL_OPERATORS = new Set([...OPERATORS, '*', '/']);
+const CALC_FUNC_REGEX = /calc\(/i;
 
 /** @type {import('stylelint').Rule} */
 const rule = (primary, _secondaryOptions, context) => {
@@ -53,6 +54,8 @@ const rule = (primary, _secondaryOptions, context) => {
 
 			if (!OPERATOR_REGEX.test(value)) return;
 
+			if (!CALC_FUNC_REGEX.test(value)) return;
+
 			let needsFix = false;
 			const valueIndex = declarationValueIndex(decl);
 			const parsedValue = valueParser(value);

diff --git a/lib/rules/function-calc-no-unspaced-operator/index.mjs b/lib/rules/function-calc-no-unspaced-operator/index.mjs
@@ -25,6 +25,7 @@ const meta = {
 const OPERATORS = new Set(['+', '-']);
 const OPERATOR_REGEX = /[+-]/;
 const ALL_OPERATORS = new Set([...OPERATORS, '*', '/']);
+const CALC_FUNC_REGEX = /calc\(/i;
 
 /** @type {import('stylelint').Rule} */
 const rule = (primary, _secondaryOptions, context) => {
@@ -50,6 +51,8 @@ const rule = (primary, _secondaryOptions, context) => {
 
 			if (!OPERATOR_REGEX.test(value)) return;
 
+			if (!CALC_FUNC_REGEX.test(value)) return;
+
 			let needsFix = false;
 			const valueIndex = declarationValueIndex(decl);
 			const parsedValue = valueParser(value);