7 calls to AttributeHelper::mergeCollections()

AttributeHelperTest::testMergeCollections in core/tests/Drupal/Tests/Core/Template/AttributeHelperTest.php
Tests merge collections.
AttributeHelperTest::testMergeCollectionsArgumentException in core/tests/Drupal/Tests/Core/Template/AttributeHelperTest.php
Tests merge collections argument exception.
FieldPreprocess::preprocessField in core/lib/Drupal/Core/Field/FieldPreprocess.php
Prepares variables for field templates.
Htmx::applyTo in core/lib/Drupal/Core/Htmx/Htmx.php
Exports data from internal storage to a render array.
template_preprocess in core/includes/theme.inc
Adds a default set of helper variables for preprocessors and templates.
ThemeManager::render in core/lib/Drupal/Core/Theme/ThemeManager.php
Generates themed output.
TwigExtension::setAttribute in core/lib/Drupal/Core/Template/TwigExtension.php
Sets an attribute on a given element.

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