[Interleaved Declarations] Mark as accepted

See #3846

js-api-doc/deprecations.d.ts

@@ -6,7 +6,7 @@
  */
 export interface Deprecations {
   // START AUTOGENERATED LIST
-  // Checksum: 22d9bdbe92eb39b3c0d6d64ebe1879a431c0037e
+  // Checksum: 6e5aeefc72f4e9b4ffa0672feea75a5ad09b0282
 
   /**
    * Deprecation for passing a string directly to meta.call().
@@ -113,6 +113,13 @@ export interface Deprecations {
    */
   'css-function-mixin': Deprecation<'css-function-mixin'>;
 
+  /**
+   * Deprecation for declarations after or between nested rules.
+   *
+   * This deprecation became active in Dart Sass 1.77.7.
+   */
+  'interleaved-decls': Deprecation<'interleaved-decls'>;
+
   /**
    * Deprecation for @import rules.
    *

spec/at-rules/unknown.md

@@ -43,6 +43,9 @@ To execute an unknown at-rule `rule`:
     * If `rule`'s name is "font-face", or if its [unprefixed] name is
       "keyframes", append `css` to [the current module]'s CSS.
 
+    * Otherwise, if `rule`'s name is case-insensitively equal to "nest", append
+      `css` to `parent`.
+
     * Otherwise:
 
       * Append `css` to `parent`'s parent.

spec/declarations.md

@@ -76,4 +76,15 @@ To execute a declaration `declaration`:
 
   * Append `css` to `parent`.
   
+  * If `parent` isn't the last statement in its parent:
+
+    * Let `copy` by a copy of `parent` without any children.
+
+    * Append `copy` to `parent`'s parent.
+
+    * Set the [current style rule], [keyframe block], or at-rule (according to
+      `copy`'s type) to `copy`, for the remaining duration of its previous value.
+
+    * Set `parent` to `copy`.
+
 * Evaluate each child in `declaration`'s `Statements` if it exists.

spec/deprecations.yaml

@@ -106,6 +106,12 @@ css-function-mixin:
     status: active
     deprecated: 1.76.0
 
+interleaved-decls:
+  description: Declarations after or between nested rules.
+  dart-sass:
+    status: active
+    deprecated: 1.77.7
+
 import:
   description: "@import rules."
   dart-sass:

spec/js-api/deprecations.d.ts.md

@@ -29,7 +29,7 @@
 ### `Deprecations`
 
 <!-- START AUTOGENERATED LIST -->
-<!-- Checksum: 22d9bdbe92eb39b3c0d6d64ebe1879a431c0037e -->
+<!-- Checksum: 6e5aeefc72f4e9b4ffa0672feea75a5ad09b0282 -->
 ```ts
 export interface Deprecations {
   'call-string': Deprecation<'call-string'>;
@@ -47,6 +47,7 @@ export interface Deprecations {
   'abs-percent': Deprecation<'abs-percent'>;
   'fs-importer-cwd': Deprecation<'fs-importer-cwd'>;
   'css-function-mixin': Deprecation<'css-function-mixin'>;
+  'interleaved-decls': Deprecation<'interleaved-decls'>;
   import: Deprecation<'import'>;
   'user-authored': Deprecation<'user-authored', 'user'>;
 }

spec/style-rules.md

@@ -13,12 +13,15 @@
 
 The *current style rule* is the CSS style rule that was created by the innermost
 [execution of a style rule](#semantics), `@media` rule, `@supports` rule, or
-unknown at-rule.
+unknown at-rule. This may be overridden by the [execution of a declaration].
+
+[execution of a declaration]: declarations.md#semantics
 
 ### Current Keyframe Block
 
 The *current keyframe block* is the CSS keyframe block that was created by the
-innermost [execution of a style rule](#semantics).
+innermost [execution of a style rule](#semantics). This may be overridden by the
+[execution of a declaration].
 
 ## Semantics