Summary: Add support for the xor operator by reducing `(X xor Y)` to `(X and not Y) or (not X and Y)`. Alternatively, `(X != Y)` could have been used but that might not be safe since SIL models Booleans with integers.
Reviewed By: skcho
Differential Revision: D29816793
fbshipit-source-id: 2496b718b
Summary: Add support for short circuit counterparts (andalso, orelse) of the logic operators (and, or).
Reviewed By: skcho
Differential Revision: D29815177
fbshipit-source-id: 98d28deed
Summary: Previously we just reported NONEXHAUSTIVE_PATTERN_MATCH, which was (1) not correct because not only patterns can cause nonexhaustive behavior, but also guards, and (2) the Erlang runtime reports errors more precisely, indicating whether the nonexhaustive behavior occurs with `if`, `case`, functions or match expressions.
Reviewed By: rgrig
Differential Revision: D29681637
fbshipit-source-id: 74a25b371
Summary: Add support for *unary minus* and *logical not* in the Erlang translation, both as expression (e.g., `X = -Y`) and pattern (e.g., `case X of -3 -> ...`).
Reviewed By: rgrig
Differential Revision: D29582176
fbshipit-source-id: 17ef89496
Summary: Add some tests for binary expressions. The idea is that tests come in pairs: in both cases we do the same calculations, one is asserting the good result and one is not, where only the latter should trigger a warning.
Reviewed By: rgrig
Differential Revision: D29556364
fbshipit-source-id: 5b601d141
Akos Hajdu