A mixin that provides methods for parsing C struct and prototype signatures.

Example

require 'fiddle/import'

include Fiddle::CParser
  #=> Object

parse_ctype('int')
  #=> Fiddle::TYPE_INT

parse_struct_signature(['int i', 'char c'])
  #=> [[Fiddle::TYPE_INT, Fiddle::TYPE_CHAR], ["i", "c"]]

parse_signature('double sum(double, double)')
  #=> ["sum", Fiddle::TYPE_DOUBLE, [Fiddle::TYPE_DOUBLE, Fiddle::TYPE_DOUBLE]]
Instance Methods
No documentation available

Given a String of C type ty, returns the corresponding Fiddle constant.

ty can also accept an Array of C type Strings, and will be returned in a corresponding Array.

If Hash tymap is provided, ty is expected to be the key, and the value will be the C type to be looked up.

Example:

include Fiddle::CParser
  #=> Object

parse_ctype('int')
  #=> Fiddle::TYPE_INT

parse_ctype('double diff')
  #=> Fiddle::TYPE_DOUBLE

parse_ctype('unsigned char byte')
  #=> -Fiddle::TYPE_CHAR

parse_ctype('const char* const argv[]')
  #=> -Fiddle::TYPE_VOIDP

Parses a C prototype signature

If Hash tymap is provided, the return value and the arguments from the signature are expected to be keys, and the value will be the C type to be looked up.

Example:

include Fiddle::CParser
  #=> Object

parse_signature('double sum(double, double)')
  #=> ["sum", Fiddle::TYPE_DOUBLE, [Fiddle::TYPE_DOUBLE, Fiddle::TYPE_DOUBLE]]

parse_signature('void update(void (*cb)(int code))')
  #=> ["update", Fiddle::TYPE_VOID, [Fiddle::TYPE_VOIDP]]

parse_signature('char (*getbuffer(void))[80]')
  #=> ["getbuffer", Fiddle::TYPE_VOIDP, []]

Parses a C struct’s members

Example:

include Fiddle::CParser
  #=> Object

parse_struct_signature(['int i', 'char c'])
  #=> [[Fiddle::TYPE_INT, Fiddle::TYPE_CHAR], ["i", "c"]]

parse_struct_signature(['char buffer[80]'])
  #=> [[[Fiddle::TYPE_CHAR, 80]], ["buffer"]]
No documentation available