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# -*- ruby -*-
require 'dl'
module DL
class Types
TYPES = [
# FORMAT:
# ["alias name", "type name",
# encoding_method, decoding_method, for function prototypes
# encoding_method, decoding_method] for structures (not implemented)
# for Windows
["DWORD", "unsigned long", nil, nil, nil, nil],
["PDWORD", "unsigned long *", nil, nil, nil, nil],
["WORD", "unsigned short", nil, nil, nil, nil],
["PWORD", "unsigned int *", nil, nil, nil, nil],
["BOOL", "ibool", nil, nil, nil, nil],
["ATOM", "int", nil, nil, nil, nil],
["BYTE", "unsigned char", nil, nil, nil, nil],
["PBYTE", "unsigned char *", nil, nil, nil, nil],
["UINT", "unsigned int", nil, nil, nil, nil],
["ULONG", "unsigned long", nil, nil, nil, nil],
["UCHAR", "unsigned char", nil, nil, nil, nil],
["HANDLE", "unsigned long", nil, nil, nil, nil],
["PHANDLE","void*", nil, nil, nil, nil],
["PVOID", "void*", nil, nil, nil, nil],
["LPCSTR", "char*", nil, nil, nil, nil],
["HDC", "unsigned int", nil, nil, nil, nil],
["HWND", "unsigned int", nil, nil, nil, nil],
# Others
["uint", "unsigned int", nil, nil, nil, nil],
["u_int", "unsigned int", nil, nil, nil, nil],
["ulong", "unsigned long", nil, nil, nil, nil],
["u_long", "unsigned long", nil, nil, nil, nil],
# DL::Importable primitive types
["ibool", "I",
proc{|v| v ? 1 : 0},
proc{|v| (v != 0) ? true : false},
nil, nil],
["cbool", "C",
proc{|v| v ? 1 : 0},
proc{|v| (v != 0) ? true : false},
nil, nil],
["lbool", "L",
proc{|v| v ? 1 : 0},
proc{|v| (v != 0) ? true : false},
nil, nil],
["unsigned char", "I",
proc{|v| [v].pack("C").unpack("c")[0]},
proc{|v| [v].pack("c").unpack("C")[0]},
nil, nil],
["unsigned short", "H",
proc{|v| [v].pack("S").unpack("s")[0]},
proc{|v| [v].pack("s").unpack("S")[0]},
nil, nil],
["unsigned int", "I",
proc{|v| [v].pack("I").unpack("i")[0]},
proc{|v| [v].pack("i").unpack("I")[0]},
nil, nil],
["unsigned long", "L",
proc{|v| [v].pack("L").unpack("l")[0]},
proc{|v| [v].pack("l").unpack("L")[0]},
nil, nil],
["unsigned char ref", "i",
proc{|v| [v].pack("C").unpack("c")[0]},
proc{|v| [v].pack("c").unpack("C")[0]},
nil, nil],
["unsigned int ref", "i",
proc{|v| [v].pack("I").unpack("i")[0]},
proc{|v| [v].pack("i").unpack("I")[0]},
nil, nil],
["unsigned long ref", "l",
proc{|v| [v].pack("L").unpack("l")[0]},
proc{|v| [v].pack("l").unpack("L")[0]},
nil, nil],
["char ref", "c", nil, nil, nil, nil],
["short ref", "h", nil, nil, nil, nil],
["int ref", "i", nil, nil, nil, nil],
["long ref", "l", nil, nil, nil, nil],
["float ref", "f", nil, nil, nil, nil],
["double ref","d", nil, nil, nil, nil],
["char", "C", nil, nil, nil, nil],
["short", "H", nil, nil, nil, nil],
["int", "I", nil, nil, nil, nil],
["long", "L", nil, nil, nil, nil],
["float", "F", nil, nil, nil, nil],
["double", "D", nil, nil, nil, nil],
[/.+\*/, "P", nil, nil, nil, nil],
[/.+\[\]/, "a", nil, nil, nil, nil],
["void", "0", nil, nil, nil, nil],
]
def initialize
init_types()
end
def typealias(ty1, ty2, enc=nil, dec=nil, senc=nil, sdec=nil)
@TYDEFS.unshift([ty1,ty2, enc,dec, senc, sdec])
end
def init_types
@TYDEFS = TYPES.dup
end
def encode_type(ty)
orig_ty = ty
enc = nil
dec = nil
senc = nil
sdec = nil
@TYDEFS.each{|t1,t2,c1,c2,c3,c4|
if( t1.is_a?(String) )
t1 = Regexp.new("^" + t1 + "$")
end
if( ty =~ t1 )
ty = ty.gsub(t1,t2)
if( enc )
if( c1 )
conv1 = enc
enc = proc{|v| c1.call(conv1.call(v))}
end
else
if( c1 )
enc = c1
end
end
if( dec )
if( c2 )
conv2 = dec
dec = proc{|v| c2.call(conv2.call(v))}
end
else
if( c2 )
dec = c2
end
end
if( senc )
if( c3 )
conv3 = senc
senc = proc{|v| c3.call(conv3.call(v))}
end
else
if( c3 )
senc = c3
end
end
if( sdec )
if( c4 )
conv4 = sdec
sdec = proc{|v| c4.call(conv4.call(v))}
end
else
if( c4 )
sdec = c4
end
end
end
}
ty = ty.strip
if( ty.length != 1 )
raise(TypeError, "unknown type: #{orig_ty}.")
end
return [ty,enc,dec,senc,sdec]
end
end # end of Types
end
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