wp-includes/class-wp-block-parser.php:365Pushes the top block from the parsing stack to the output list.
$end_offsetint|nulloptionalnull public function add_block_from_stack( $end_offset = null ) { $stack_top = array_pop( $this->stack ); $prev_offset = $stack_top->prev_offset; $html = isset( $end_offset ) ? substr( $this->document, $prev_offset, $end_offset - $prev_offset ) : substr( $this->document, $prev_offset ); if ( ! empty( $html ) ) { $stack_top->block->innerHTML .= $html; $stack_top->block->innerContent[] = $html; } if ( isset( $stack_top->leading_html_start ) ) { $this->output[] = (array) $this->freeform( substr( $this->document, $stack_top->leading_html_start, $stack_top->token_start - $stack_top->leading_html_start ) ); } $this->output[] = (array) $stack_top->block; }Introduced in 5.0.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-block-parser.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.