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#include "LuaBigInt.h"
using namespace Balau;
enum BigInt_functions_t {
BIGINT_CONSTRUCTOR,
};
enum BigInt_methods_t {
BIGINT_SET,
BIGINT_TOSTRING,
BIGINT_ADD,
BIGINT_SUB,
BIGINT_MUL,
BIGINT_DIV,
BIGINT_MOD,
};
struct lua_functypes_t BigInt_functions[] = {
{ BIGINT_CONSTRUCTOR, NULL, 0, 2, { BLUA_STRING | BLUA_NUMBER, BLUA_NUMBER } },
{ -1, 0, 0, 0, 0 },
};
struct lua_functypes_t BigInt_methods[] = {
{ BIGINT_SET, "set", 1, 2, { BLUA_STRING | BLUA_NUMBER, BLUA_NUMBER } },
{ BIGINT_TOSTRING, "tostring", 0, 1, { BLUA_NUMBER } },
{ BIGINT_ADD, "add", 1, 1, { BLUA_OBJECT } },
{ BIGINT_SUB, "sub", 1, 1, { BLUA_OBJECT } },
{ BIGINT_MUL, "mul", 1, 1, { BLUA_OBJECT } },
{ BIGINT_DIV, "div", 1, 1, { BLUA_OBJECT } },
{ BIGINT_MOD, "mod", 1, 1, { BLUA_OBJECT } },
{ -1, 0, 0, 0, 0 },
};
struct sLua_BigInt {
static int BigInt_proceed_static(Lua & L, int n, int caller);
static int BigInt_proceed(Lua & L, int n, BigInt * obj, int caller);
};
int sLua_BigInt::BigInt_proceed_static(Lua & L, int n, int caller) {
int r = 0;
String s;
int radix = 10;
switch (caller) {
case BIGINT_CONSTRUCTOR:
{
BigInt * a = new BigInt();
if (L.type() == LUA_TSTRING) {
s = L.tostring(1);
if (n == 2)
radix = L.tonumber(-1);
a->set(s, radix);
} else {
lua_Number f = L.tonumber();
a->set(f);
}
LuaBigIntFactory o(a);
o.pushDestruct(L);
r = 1;
break;
}
}
return r;
}
int sLua_BigInt::BigInt_proceed(Lua & L, int n, BigInt * a, int caller) {
int r = 0;
BigInt * b, * c, * m;
String s;
int radix = 10;
switch (caller) {
case BIGINT_SET:
if (L.type() == LUA_TSTRING) {
s = L.tostring(2);
if (n == 3)
radix = L.tonumber(-1);
a->set(s, radix);
} else {
lua_Number f = L.tonumber();
a->set(f);
}
r = 0;
break;
case BIGINT_TOSTRING:
if (n == 3)
radix = L.tonumber(-1);
L.push(a->toString(radix));
r = 1;
break;
case BIGINT_ADD:
b = L.recast<BigInt>();
{
LuaBigIntFactory cf(c = new BigInt());
cf.pushDestruct(L);
}
*c = *a + *b;
r = 1;
break;
case BIGINT_SUB:
b = L.recast<BigInt>();
{
LuaBigIntFactory cf(c = new BigInt());
cf.pushDestruct(L);
}
*c = *a - *b;
r = 1;
break;
case BIGINT_MUL:
b = L.recast<BigInt>();
{
LuaBigIntFactory cf(c = new BigInt());
cf.pushDestruct(L);
}
*c = *a * *b;
r = 1;
break;
case BIGINT_DIV:
b = L.recast<BigInt>();
{
LuaBigIntFactory cf(c = new BigInt());
cf.pushDestruct(L);
}
*c = *a / *b;
r = 1;
break;
case BIGINT_MOD:
b = L.recast<BigInt>();
{
LuaBigIntFactory cf(c = new BigInt());
cf.pushDestruct(L);
}
*c = *a % *b;
r = 1;
break;
}
return r;
}
#define METAMETHOD_WRAPPER(op) \
L.push("__" #op); \
L.load("" \
"return function(bigint) return function(a) \n" \
" return a:" #op "() \n" \
"end end\n" \
""); \
L.copy(-5); \
L.pcall(1); \
L.settable() \
#define METAMETHOD_WRAPPER2(op) \
L.push("__" #op); \
L.load("" \
"return function(bigint) return function(a, b) \n" \
" if type(a) ~= 'table' or a.__type ~= bigint then \n" \
" a = bigint.new(a) \n" \
" end \n" \
" if type(b) ~= 'table' or b.__type ~= bigint then \n" \
" b = bigint.new(b) \n" \
" end \n" \
" return a:" #op "(b) \n" \
"end end\n" \
""); \
L.copy(-5); \
L.pcall(1); \
L.settable() \
void LuaBigIntFactory::pushStatics(Lua & L) {
CHECK_FUNCTIONS(BigInt);
CHECK_METHODS(BigInt);
PUSH_CLASS(BigInt);
PUSH_CONSTRUCTOR(BigInt, BIGINT_CONSTRUCTOR);
L.push("BIGINT_METAS");
L.newtable();
METAMETHOD_WRAPPER2(add);
METAMETHOD_WRAPPER2(sub);
METAMETHOD_WRAPPER2(div);
METAMETHOD_WRAPPER2(mul);
METAMETHOD_WRAPPER2(mod);
METAMETHOD_WRAPPER(tostring);
L.settable(LUA_REGISTRYINDEX);
PUSH_CLASS_DONE();
}
void LuaBigIntFactory::pushObjectAndMembers(Lua & L) {
pushObj(L, m_obj, "BigInt");
L.push("BIGINT_METAS");
L.gettable(LUA_REGISTRYINDEX);
L.setmetatable();
PUSH_METHOD(BigInt, BIGINT_SET);
PUSH_METHOD(BigInt, BIGINT_TOSTRING);
PUSH_METHOD(BigInt, BIGINT_ADD);
PUSH_METHOD(BigInt, BIGINT_SUB);
PUSH_METHOD(BigInt, BIGINT_MUL);
PUSH_METHOD(BigInt, BIGINT_DIV);
PUSH_METHOD(BigInt, BIGINT_MOD);
}
void Balau::registerLuaBigInt(Lua & L) {
LuaBigIntFactory::pushStatics(L);
}
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