Expression Statement

expression-statement ::= (block-expression |
                          if-expression |
                          condition-expression |
                          match-expression |
                          receive-expression |
                          while-expression |
                          for-expression |
                          try-expression) ';'? | expression ';'

Evaluates expression (the value). If the expression statement is the final statement of the enclosing block expression, the value becomes the result of the block expression.