| const one = 1i; |
| const two = 2i; |
| |
| // All assignment RHS expression should be parsed as two minus (nested) negation unary expression. |
| // E.g., two----one should be parsed as (two- -(-(-(one)))) |
| const two_minus_minus_one = two--one; |
| const two_minus_minus_minus_one = two---one; |
| const two_minus_minus_minus_minus_one = two----one; |
| const two_minus_minus_minus_minus_minus_one = two-----one; |
| const two_minus_minus_minus_minus_minus_minus_one = two------one; |
| const two_minus_minus_minus_minus_minus_minus_minus_one = two-------one; |
| const two_minus_minus_minus_minus_minus_minus_minus_minus_one = two--------one; |
| const two_minus_minus_minus_minus_minus_minus_minus_minus_minus_one = two---------one; |
| const two_minus_minus_minus_minus_minus_minus_minus_minus_minus_minus_one = two----------one; |
| |
| const_assert(two_minus_minus_one == 3i); |
| const_assert(two_minus_minus_minus_one == 1i); |
| const_assert(two_minus_minus_minus_minus_one == 3i); |
| const_assert(two_minus_minus_minus_minus_minus_one == 1i); |
| const_assert(two_minus_minus_minus_minus_minus_minus_one == 3i); |
| const_assert(two_minus_minus_minus_minus_minus_minus_minus_one == 1i); |
| const_assert(two_minus_minus_minus_minus_minus_minus_minus_minus_one == 3i); |
| const_assert(two_minus_minus_minus_minus_minus_minus_minus_minus_minus_one == 1i); |
| const_assert(two_minus_minus_minus_minus_minus_minus_minus_minus_minus_minus_one == 3i); |
| |
| // Add some random spaces into the expressions, should not change the result. |
| const two_4_minus_one_with_spaces_0 = two-- - -one; |
| const two_4_minus_one_with_spaces_1 = two - - --one; |
| const two_10_minus_one_with_spaces_0 = two -- -- -- -- -- one; |
| const two_10_minus_one_with_spaces_1 = two-- - - - - - - --one; |
| const two_10_minus_one_with_spaces_2 = two-- - -- -- - -- one; |
| const two_10_minus_one_with_spaces_3 = two - -- -- --- - - one; |
| const two_10_minus_one_with_spaces_4 = two - -- --- ---- one; |
| |
| const_assert(two_4_minus_one_with_spaces_0 == 3i); |
| const_assert(two_4_minus_one_with_spaces_1 == 3i); |
| const_assert(two_10_minus_one_with_spaces_0 == 3i); |
| const_assert(two_10_minus_one_with_spaces_1 == 3i); |
| const_assert(two_10_minus_one_with_spaces_2 == 3i); |
| const_assert(two_10_minus_one_with_spaces_3 == 3i); |
| const_assert(two_10_minus_one_with_spaces_4 == 3i); |
| |
| @fragment |
| fn main() { |
| // a should be 3 - ([negation*14] 1) = 2 |
| var a = two_minus_minus_minus_minus_minus_minus_minus_minus_minus_minus_one---------------one; |
| } |
