Elixir Operator Info

elixir_operator_info.exs

# See https://github.com/elixir-lang/elixir/blob/master/lib/elixir/src/elixir_parser.yrl#L52
# for the list of operators with associativity, etc.


# The operators in this list are grouped by precedence, low to high.
# The comments indicate the operator's normal function, as well as its ability to be defined/overridden.

->    # CompileError 'unhandled operator'. only allowed in anonymous function syntax.

&     # CompileError, only allowed in short anonymous function syntax.

<-    # Free to implement, but used in `for` comprehensions.
\\    # Free to implement, but used as 'default parameter' syntax.

when  # unable to define, as used to separate guard clauses.

::    # used for Typespecs. Cannot override as it conflicts with Elixir special forms.

|     # Free to implement, but used as 'cons' inside lists/maps.

=>    # Only allowed in maps. Cannot override as it conflicts with Elixir special forms.

=     # Match operator. Cannot override as it conflicts with Elixir special forms.

||    # Part of stdlib: short-cirtuiting truthyish OR
|||   # Part of Bitwise: bitwise OR
or    # Guard-safe short-circuiting boolean OR

&&    # Part of stdlib: short-cirtuiting truthyish AND
&&&   # Part of Bitwise: bitwise AND
and   # Guard-safe short-circuiting boolean AND

==    # Part of stdlib: Equality
!=    # Part of stdlib: Inequality
=~    # Part of stdlib: String-to-Regexp matching
===   # Part of stdlib: Strict Equality (difference floats vs ints)
!==   # Part of stdlib: Strict Inequality (difference floats vs ints)

<     # Part of stdlib: Less than
>     # Part of stdlib: Greater than
<=    # Part of stdlib: Less than or equal to
>=    # Part of stdlib: Greater than or equal to

|>    # Part of stdlib: Pipe operator. (pass lhs as first argument into rhs)
>>>   # Part of Bitwise: Right Bitshift
<<<   # Part of Bitwise: Left Bitshift
~>>   # Free and definable!
<<~   # Free and definable!
~>    # Free and definable!
<~    # Free and definable!
<~>   # Free and definable!
<|>   # Free and definable!

in    # Part of stdlib: check if lhs is a member of rhs. Guard-safe when rhs is range or list

^^^   # Part of Bitwise: Binary XOR

++    # Part of stdlib: List append
--    # Part of stdlib: List difference (removes at most one occurence)
..    # Part of stdlib: inline syntax for ranges.
<>    # Part of stdlib: Binary concatenation.

+     # Part of stdlib: Arithmetic addition
-     # Part of stdlib: Arithmetic subtraction

*     # Part of stdlib: Arithmetic multiplication
/     # Part of stdlib: Arithmetic division

# All operators below are unary operators.

+     # Part of stdlib: Arithmetic unary plus
-     # Part of stdlib: Arithmetic unary negation
!     # Part of stdlib: truthyish NOT
^     # Part of stdlib: 'pin' operator that prevents rebinding.
not   # Part of stdlib: guard-safe boolean NOT
~~~   # Part of Bitwise: binary NOT

.     # Cannot override, as compiler attempts to interpret `.` during function definition.

@     # Part of stdlib: Read/write module attributes.