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shared.go
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shared.go
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package lualib
import (
"bufio"
"os"
lua "github.com/yuin/gopher-lua"
"github.com/yuin/gopher-lua/parse"
)
// CompileLua reads the passed lua file from disk and compiles it.
func CompileLua(filePath string) (*lua.FunctionProto, error) {
file, err := os.Open(filePath)
defer file.Close()
if err != nil {
return nil, err
}
reader := bufio.NewReader(file)
chunk, err := parse.Parse(reader, filePath)
if err != nil {
return nil, err
}
proto, err := lua.Compile(chunk, filePath)
if err != nil {
return nil, err
}
return proto, nil
}
// DoCompiledFile takes a FunctionProto, as returned by CompileLua, and runs it in the LState. It is equivalent
// to calling DoFile on the LState with the original source file.
func DoCompiledFile(L *lua.LState, proto *lua.FunctionProto) error {
lfunc := L.NewFunctionFromProto(proto)
L.Push(lfunc)
return L.PCall(0, lua.MultRet, nil)
}
func CleanupLTable(table *lua.LTable) {
table.ForEach(func(key lua.LValue, value lua.LValue) {
table.RawSet(key, lua.LNil)
})
}