clojure Macros
Syntax
- The
'symbol used in the macroexpand example is just syntactic sugar for thequoteoperator. You could have written(macroexpand (quote (infix 1 + 2)))instead.
Remarks
Macros are just functions that run at compile time, i.e. during the eval step in a read-eval-print-loop.
Reader macros are another form of macro that gets expanded at read time, rather than compile time.
Best practice when defining macro.
- alpha-renaming, Since macro is expand binding name conflict could arise. Binding conflict is not very intuitive to solve when using the macro. This is why, whenever a macro adds a binding to the scope, it is mandatory to use the
#at the end of each symbol.
