WP_REST_Abilities_V1_List_Controller::strip_internal_schema_keywords( $schema ): array<string,

Source

private function strip_internal_schema_keywords( array $schema ): array {
	$schema = array_diff_key( $schema, self::INTERNAL_SCHEMA_KEYWORDS );

	// Sub-schema maps: keys are user-defined, values are sub-schemas.
	// Note: 'dependencies' values can also be property-dependency arrays
	// (numeric arrays of strings) which are skipped via wp_is_numeric_array().
	foreach ( array( 'properties', 'patternProperties', 'definitions', 'dependencies' ) as $keyword ) {
		if ( isset( $schema[ $keyword ] ) && is_array( $schema[ $keyword ] ) ) {
			foreach ( $schema[ $keyword ] as $key => $child_schema ) {
				if ( is_array( $child_schema ) && ! wp_is_numeric_array( $child_schema ) ) {
					$schema[ $keyword ][ $key ] = $this->strip_internal_schema_keywords( $child_schema );
				}
			}
		}
	}

	// Single sub-schema keywords.
	foreach ( array( 'not', 'additionalProperties', 'additionalItems' ) as $keyword ) {
		if ( isset( $schema[ $keyword ] ) && is_array( $schema[ $keyword ] ) ) {
			$schema[ $keyword ] = $this->strip_internal_schema_keywords( $schema[ $keyword ] );
		}
	}

	// Items: single schema or tuple array of schemas.
	if ( isset( $schema['items'] ) ) {
		if ( wp_is_numeric_array( $schema['items'] ) ) {
			foreach ( $schema['items'] as $index => $item_schema ) {
				if ( is_array( $item_schema ) ) {
					$schema['items'][ $index ] = $this->strip_internal_schema_keywords( $item_schema );
				}
			}
		} elseif ( is_array( $schema['items'] ) ) {
			$schema['items'] = $this->strip_internal_schema_keywords( $schema['items'] );
		}
	}

	// Array-of-schemas keywords.
	foreach ( array( 'anyOf', 'oneOf', 'allOf' ) as $keyword ) {
		if ( isset( $schema[ $keyword ] ) && is_array( $schema[ $keyword ] ) ) {
			foreach ( $schema[ $keyword ] as $index => $sub_schema ) {
				if ( is_array( $sub_schema ) ) {
					$schema[ $keyword ][ $index ] = $this->strip_internal_schema_keywords( $sub_schema );
				}
			}
		}
	}

	return $schema;
}

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