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bit64.go
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bit64.go
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// Copyright 2023 Deflinhec
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package auxlib
import (
lua "github.com/yuin/gopher-lua"
)
var (
Bit64LibName = "bit64"
)
var bit64Funcs = map[string]lua.LGFunction{
"brshift": bit64brshift,
"blshift": bit64blshift,
"band": bit64band,
"bnot": bit64bnot,
"bxor": bit64bxor,
"bor": bit64bor,
}
func OpenBit64(l *lua.LState) int {
mod := l.RegisterModule(Bit64LibName, bit64Funcs)
l.Push(mod)
return 1
}
func bit64brshift(l *lua.LState) int {
lhs, rhs := l.CheckInt64(1), l.CheckInt64(2)
l.Push(lua.LNumber(uint64(lhs) >> uint64(rhs)))
return 1
}
func bit64blshift(l *lua.LState) int {
lhs, rhs := l.CheckInt64(1), l.CheckInt64(2)
l.Push(lua.LNumber(uint64(lhs) << uint64(rhs)))
return 1
}
func bit64band(l *lua.LState) int {
lhs, rhs := l.CheckInt64(1), l.CheckInt64(2)
l.Push(lua.LNumber(uint64(lhs) & uint64(rhs)))
return 1
}
func bit64bor(l *lua.LState) int {
lhs, rhs := l.CheckInt64(1), l.CheckNumber(2)
l.Push(lua.LNumber(uint64(lhs) | uint64(rhs)))
return 1
}
func bit64bxor(l *lua.LState) int {
lhs, rhs := l.CheckInt64(1), l.CheckInt64(2)
l.Push(lua.LNumber(uint64(lhs) ^ uint64(rhs)))
return 1
}
func bit64bnot(l *lua.LState) int {
l.Push(lua.LNumber(^uint64(l.CheckInt64(1))))
return 1
}