wp-includes/customize/class-wp-customize-code-editor-control.php:49Enqueue control related scripts/styles.
public function enqueue() { $this->editor_settings = wp_enqueue_code_editor( array_merge( array( 'type' => $this->code_type, 'codemirror' => array( 'indentUnit' => 2, 'tabSize' => 2, ), ), $this->editor_settings ) ); }Introduced in 4.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/customize/class-wp-customize-code-editor-control.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.