skip hash argument where possible

Rich-Harris · Rich-Harris · commit 2bf0a2209354 · 2025-03-05T18:17:34.000-05:00
diff --git a/packages/svelte/src/compiler/phases/3-transform/server/visitors/shared/element.js b/packages/svelte/src/compiler/phases/3-transform/server/visitors/shared/element.js
@@ -396,8 +396,6 @@ function build_attr_class(class_directives, expression, context, hash) {
 		} else {
 			css_hash = b.literal(hash);
 		}
-	} else if (directives) {
-		css_hash = b.null;
 	}
 
 	return b.call('$.attr_class', expression, css_hash, directives);
diff --git a/packages/svelte/src/internal/server/index.js b/packages/svelte/src/internal/server/index.js
@@ -286,7 +286,7 @@ function style_object_to_string(style_object) {
 
 /**
  * @param {any} value
- * @param {string | null} [hash]
+ * @param {string | undefined} [hash]
  * @param {Record<string, boolean>} [directives]
  */
 export function attr_class(value, hash, directives) {

Original file line number	Diff line number	Diff line change
`@@ -396,8 +396,6 @@ function build_attr_class(class_directives, expression, context, hash) {`
`396`	`396`	`} else {`
`397`	`397`	`css_hash = b.literal(hash);`
`398`	`398`	`}`
`399`		`- } else if (directives) {`
`400`		`- css_hash = b.null;`
`401`	`399`	`}`
`402`	`400`
`403`	`401`	`return b.call('$.attr_class', expression, css_hash, directives);`