39 files declare their use of CommentInterface

BigPipeRegressionTest.php in core/modules/big_pipe/tests/src/FunctionalJavascript/BigPipeRegressionTest.php
comment.api.php in core/modules/comment/comment.api.php
Hooks provided by the Comment module.
comment.module in core/modules/comment/comment.module
Enables users to comment on published content.
Comment.php in core/modules/comment/src/Entity/Comment.php
CommentAdminOverview.php in core/modules/comment/src/Form/CommentAdminOverview.php
CommentAnonymousTest.php in core/modules/comment/tests/src/Functional/CommentAnonymousTest.php
CommentAttributesTest.php in core/modules/rdf/tests/src/Functional/CommentAttributesTest.php
CommentBaseFieldTest.php in core/modules/comment/tests/src/Kernel/CommentBaseFieldTest.php
CommentBookTest.php in core/modules/comment/tests/src/Functional/CommentBookTest.php
CommentCacheTagsTest.php in core/modules/comment/tests/src/Functional/CommentCacheTagsTest.php
CommentController.php in core/modules/comment/src/Controller/CommentController.php
CommentCSSTest.php in core/modules/comment/tests/src/Functional/CommentCSSTest.php
CommentDefaultFormatterCacheTagsTest.php in core/modules/comment/tests/src/Kernel/CommentDefaultFormatterCacheTagsTest.php
CommentEntityTest.php in core/modules/comment/tests/src/Functional/CommentEntityTest.php
CommentFieldAccessTest.php in core/modules/comment/tests/src/Kernel/CommentFieldAccessTest.php
CommentItem.php in core/modules/comment/src/Plugin/Field/FieldType/CommentItem.php
CommentLegacyTest.php in core/modules/comment/tests/src/Kernel/CommentLegacyTest.php
CommentLinksTest.php in core/modules/comment/tests/src/Functional/CommentLinksTest.php
CommentNameConstraintValidator.php in core/modules/comment/src/Plugin/Validation/Constraint/CommentNameConstraintValidator.php
CommentNewIndicatorTest.php in core/modules/comment/tests/src/Functional/CommentNewIndicatorTest.php
CommentNonNodeTest.php in core/modules/comment/tests/src/Functional/CommentNonNodeTest.php
CommentSelection.php in core/modules/comment/src/Plugin/EntityReferenceSelection/CommentSelection.php
CommentTestBase.php in core/modules/comment/src/Tests/CommentTestBase.php
CommentTestBase.php in core/modules/comment/tests/src/Functional/CommentTestBase.php
CommentTestController.php in core/modules/comment/tests/modules/comment_test/src/Controller/CommentTestController.php
CommentValidationTest.php in core/modules/comment/tests/src/Kernel/CommentValidationTest.php
comment_test.module in core/modules/comment/tests/modules/comment_test/comment_test.module
Dummy module implementing comment related hooks to test API interaction with the Comment module.
DefaultViewRecentCommentsTest.php in core/modules/comment/tests/src/Functional/Views/DefaultViewRecentCommentsTest.php
DefaultViewsTest.php in core/modules/views/tests/src/Functional/DefaultViewsTest.php
EntityFilteringThemeTest.php in core/modules/system/tests/src/Functional/Theme/EntityFilteringThemeTest.php
EntityReferenceSelectionAccessTest.php in core/modules/system/tests/src/Functional/Entity/EntityReferenceSelection/EntityReferenceSelectionAccessTest.php
forum.module in core/modules/forum/forum.module
Provides discussion forums.
ForumIndexStorage.php in core/modules/forum/src/ForumIndexStorage.php
ForumUninstallTest.php in core/modules/forum/tests/src/Functional/ForumUninstallTest.php
NodeAccessPagerTest.php in core/modules/node/tests/src/Functional/NodeAccessPagerTest.php
NodeNewComments.php in core/modules/comment/src/Plugin/views/field/NodeNewComments.php
tracker.module in core/modules/tracker/tracker.module
Tracks recent content posted by a user or users.
TrackerTest.php in core/modules/tracker/tests/src/Functional/TrackerTest.php
UserCancelTest.php in core/modules/user/tests/src/Functional/UserCancelTest.php

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