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local argtypes = {}
local function interpretdefaultvalue(arg)
local default = arg.default
if type(default) == 'boolean' then
if default then
return '1'
else
return '0'
end
elseif type(default) == 'number' then
return tostring(default)
elseif type(default) == 'string' then
return default
elseif type(default) == 'function' then
default = default(arg)
assert(type(default) == 'string', 'a default function must return a string')
return default
elseif type(default) == 'nil' then
return nil
else
error('unknown default type value')
end
end
argtypes.index = {
helpname = function(arg)
return "index"
end,
declare = function(arg)
-- if it is a number we initialize here
local default = tonumber(interpretdefaultvalue(arg)) or 1
return string.format("long arg%d = %d;", arg.i, tonumber(default)-1)
end,
check = function(arg, idx)
return string.format("lua_isnumber(L, %d)", idx)
end,
read = function(arg, idx)
return string.format("arg%d = (long)lua_tonumber(L, %d)-1;", arg.i, idx)
end,
init = function(arg)
-- otherwise do it here
if arg.default then
local default = interpretdefaultvalue(arg)
if not tonumber(default) then
return string.format("arg%d = %s-1;", arg.i, default)
end
end
end,
carg = function(arg)
return string.format('arg%d', arg.i)
end,
creturn = function(arg)
return string.format('arg%d', arg.i)
end,
precall = function(arg)
if arg.returned then
return string.format('lua_pushnumber(L, (lua_Number)arg%d+1);', arg.i)
end
end,
postcall = function(arg)
if arg.creturned then
return string.format('lua_pushnumber(L, (lua_Number)arg%d+1);', arg.i)
end
end
}
for _,typename in ipairs({"real", "unsigned char", "char", "short", "int", "long", "float", "double"}) do
argtypes[typename] = {
helpname = function(arg)
return typename
end,
declare = function(arg)
-- if it is a number we initialize here
local default = tonumber(interpretdefaultvalue(arg)) or 0
return string.format("%s arg%d = %g;", typename, arg.i, default)
end,
check = function(arg, idx)
return string.format("lua_isnumber(L, %d)", idx)
end,
read = function(arg, idx)
return string.format("arg%d = (%s)lua_tonumber(L, %d);", arg.i, typename, idx)
end,
init = function(arg)
-- otherwise do it here
if arg.default then
local default = interpretdefaultvalue(arg)
if not tonumber(default) then
return string.format("arg%d = %s;", arg.i, default)
end
end
end,
carg = function(arg)
return string.format('arg%d', arg.i)
end,
creturn = function(arg)
return string.format('arg%d', arg.i)
end,
precall = function(arg)
if arg.returned then
return string.format('lua_pushnumber(L, (lua_Number)arg%d);', arg.i)
end
end,
postcall = function(arg)
if arg.creturned then
return string.format('lua_pushnumber(L, (lua_Number)arg%d);', arg.i)
end
end
}
end
argtypes.byte = argtypes['unsigned char']
argtypes.boolean = {
helpname = function(arg)
return "boolean"
end,
declare = function(arg)
-- if it is a number we initialize here
local default = tonumber(interpretdefaultvalue(arg)) or 0
return string.format("int arg%d = %d;", arg.i, tonumber(default))
end,
check = function(arg, idx)
return string.format("lua_isboolean(L, %d)", idx)
end,
read = function(arg, idx)
return string.format("arg%d = lua_toboolean(L, %d);", arg.i, idx)
end,
init = function(arg)
-- otherwise do it here
if arg.default then
local default = interpretdefaultvalue(arg)
if not tonumber(default) then
return string.format("arg%d = %s;", arg.i, default)
end
end
end,
carg = function(arg)
return string.format('arg%d', arg.i)
end,
creturn = function(arg)
return string.format('arg%d', arg.i)
end,
precall = function(arg)
if arg.returned then
return string.format('lua_pushboolean(L, arg%d);', arg.i)
end
end,
postcall = function(arg)
if arg.creturned then
return string.format('lua_pushboolean(L, arg%d);', arg.i)
end
end
}
return argtypes
|
