Allow at-rules in @keyframes blocks (#2236)

See sass/sass#3859
See sass/sass#3861
See sass/sass-spec#1987

Author: nex3

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.77.0
+
+* *Don't* throw errors for at-rules in keyframe blocks.
+
 ## 1.76.0
 
 * Throw errors for misplaced statements in keyframe blocks.

lib/src/visitor/async_evaluate.dart

@@ -1324,9 +1324,6 @@ final class _EvaluateVisitor
     if (_declarationName != null) {
       throw _exception(
           "At-rules may not be used within nested declarations.", node.span);
-    } else if (_inKeyframes && _parent is CssKeyframeBlock) {
-      throw _exception(
-          "At-rules may not be used within keyframe blocks.", node.span);
     }
 
     var name = await _interpolationToValue(node.name);
@@ -1898,9 +1895,6 @@ final class _EvaluateVisitor
     if (_declarationName != null) {
       throw _exception(
           "Media rules may not be used within nested declarations.", node.span);
-    } else if (_inKeyframes && _parent is CssKeyframeBlock) {
-      throw _exception(
-          "At-rules may not be used within keyframe blocks.", node.span);
     }
 
     var queries = await _visitMediaQueries(node.query);
@@ -2121,9 +2115,6 @@ final class _EvaluateVisitor
       throw _exception(
           "Supports rules may not be used within nested declarations.",
           node.span);
-    } else if (_inKeyframes && _parent is CssKeyframeBlock) {
-      throw _exception(
-          "At-rules may not be used within keyframe blocks.", node.span);
     }
 
     var condition = CssValue(
@@ -3282,9 +3273,6 @@ final class _EvaluateVisitor
     if (_declarationName != null) {
       throw _exception(
           "At-rules may not be used within nested declarations.", node.span);
-    } else if (_inKeyframes && _parent is CssKeyframeBlock) {
-      throw _exception(
-          "At-rules may not be used within keyframe blocks.", node.span);
     }
 
     if (node.isChildless) {
@@ -3368,9 +3356,6 @@ final class _EvaluateVisitor
     if (_declarationName != null) {
       throw _exception(
           "Media rules may not be used within nested declarations.", node.span);
-    } else if (_inKeyframes && _parent is CssKeyframeBlock) {
-      throw _exception(
-          "At-rules may not be used within keyframe blocks.", node.span);
     }
 
     var mergedQueries = _mediaQueries.andThen(

lib/src/visitor/evaluate.dart

@@ -5,7 +5,7 @@
 // DO NOT EDIT. This file was generated from async_evaluate.dart.
 // See tool/grind/synchronize.dart for details.
 //
-// Checksum: 135bf44f65efcbebb4a55b38ada86c754fcdb86b
+// Checksum: 7788c21fd8c721992490ac01d0ef4783dddf3f1f
 //
 // ignore_for_file: unused_import
 
@@ -1321,9 +1321,6 @@ final class _EvaluateVisitor
     if (_declarationName != null) {
       throw _exception(
           "At-rules may not be used within nested declarations.", node.span);
-    } else if (_inKeyframes && _parent is CssKeyframeBlock) {
-      throw _exception(
-          "At-rules may not be used within keyframe blocks.", node.span);
     }
 
     var name = _interpolationToValue(node.name);
@@ -1890,9 +1887,6 @@ final class _EvaluateVisitor
     if (_declarationName != null) {
       throw _exception(
           "Media rules may not be used within nested declarations.", node.span);
-    } else if (_inKeyframes && _parent is CssKeyframeBlock) {
-      throw _exception(
-          "At-rules may not be used within keyframe blocks.", node.span);
     }
 
     var queries = _visitMediaQueries(node.query);
@@ -2111,9 +2105,6 @@ final class _EvaluateVisitor
       throw _exception(
           "Supports rules may not be used within nested declarations.",
           node.span);
-    } else if (_inKeyframes && _parent is CssKeyframeBlock) {
-      throw _exception(
-          "At-rules may not be used within keyframe blocks.", node.span);
     }
 
     var condition =
@@ -3252,9 +3243,6 @@ final class _EvaluateVisitor
     if (_declarationName != null) {
       throw _exception(
           "At-rules may not be used within nested declarations.", node.span);
-    } else if (_inKeyframes && _parent is CssKeyframeBlock) {
-      throw _exception(
-          "At-rules may not be used within keyframe blocks.", node.span);
     }
 
     if (node.isChildless) {
@@ -3338,9 +3326,6 @@ final class _EvaluateVisitor
     if (_declarationName != null) {
       throw _exception(
           "Media rules may not be used within nested declarations.", node.span);
-    } else if (_inKeyframes && _parent is CssKeyframeBlock) {
-      throw _exception(
-          "At-rules may not be used within keyframe blocks.", node.span);
     }
 
     var mergedQueries = _mediaQueries.andThen(

pkg/sass_api/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 10.4.0
+
+* No user-visible changes.
+
 ## 10.3.0
 
 * No user-visible changes.

pkg/sass_api/pubspec.yaml

@@ -2,15 +2,15 @@ name: sass_api
 # Note: Every time we add a new Sass AST node, we need to bump the *major*
 # version because it's a breaking change for anyone who's implementing the
 # visitor interface(s).
-version: 10.3.0
+version: 10.4.0
 description: Additional APIs for Dart Sass.
 homepage: https://github.com/sass/dart-sass
 
 environment:
   sdk: ">=3.0.0 <4.0.0"
 
 dependencies:
-  sass: 1.76.0
+  sass: 1.77.0
 
 dev_dependencies:
   dartdoc: ^6.0.0

pubspec.yaml

@@ -1,5 +1,5 @@
 name: sass
-version: 1.76.0
+version: 1.77.0
 description: A Sass implementation in Dart.
 homepage: https://github.com/sass/dart-sass