Module macros

Implementation of Ruby macros.

Since macros are rely on the C preprocessor, or defined as inline C functions, they are not available when linking libruby. In order to use the libruby macros from Rust, rb-sys implements them using the following strategies:

1. For stable versions of Ruby, the macros are implemented as Rust functions
2. For ruby-head, the macros are implemented as C functions that are linked into the crate.

Functions

• FIXNUM_P
  Checks if the given object is a so-called Fixnum.
• FLONUM_P
  Checks if the given object is a so-called Flonum.
• IMMEDIATE_P
  Checks if the given object is an immediate i.e. an object which has no corresponding storage inside of the object space.
• NIL_P
  Checks if the given object is nil.
• RARRAY_CONST_PTR^⚠
  Get the backend storage of a Ruby array.
• RARRAY_LEN^⚠
  Get the length of a Ruby array.
• RB_BUILTIN_TYPE^⚠
  Queries the type of the object.
• RB_DYNAMIC_SYM_P^⚠
  Queries if the object is a dynamic symbol.
• RB_FLOAT_TYPE_P^⚠
  Queries if the object is an instance of ::rb_cFloat.
• RB_INTEGER_TYPE_P^⚠
  Queries if the object is an instance of ::rb_cInteger.
• RB_SYMBOL_P^⚠
  Queries if the object is an instance of ::rb_cSymbol.
• RB_TYPE^⚠
  Identical to RB_BUILTIN_TYPE(), except it can also accept special constants.
• RB_TYPE_P^⚠
  Queries if the given object is of given type.
• RSTRING_LEN^⚠
  Get the length of a Ruby string.
• RSTRING_PTR^⚠
  Get the backend storage of a Ruby string.
• SPECIAL_CONST_P
  Checks if the given object is of enum ::ruby_special_consts.
• STATIC_SYM_P
  Checks if the given object is a static symbol.
• TEST
  Emulates Ruby’s “if” statement.