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|
package luar
import (
"reflect"
"github.com/yuin/gopher-lua"
)
func chanIndex(L *lua.LState) int {
_, mt := check(L, 1)
key := L.CheckString(2)
if fn := mt.method(key); fn != nil {
L.Push(fn)
return 1
}
return 0
}
func chanLen(L *lua.LState) int {
ref, _ := check(L, 1)
L.Push(lua.LNumber(ref.Len()))
return 1
}
func chanEq(L *lua.LState) int {
ref1, _ := check(L, 1)
ref2, _ := check(L, 2)
L.Push(lua.LBool(ref1.Pointer() == ref2.Pointer()))
return 1
}
func chanCall(L *lua.LState) int {
ref, _ := check(L, 1)
switch L.GetTop() {
// Receive
case 1:
if ref.Type().ChanDir()&reflect.RecvDir == 0 {
L.ArgError(1, "receive from send-only type "+ref.Type().String())
}
value, ok := ref.Recv()
if ok {
L.Push(New(L, value.Interface()))
L.Push(lua.LTrue)
} else {
L.Push(lua.LNil)
L.Push(lua.LFalse)
}
return 2
// Send
case 2:
if ref.Type().ChanDir()&reflect.SendDir == 0 {
L.ArgError(1, "send to receive-only type "+ref.Type().String())
}
value := L.CheckAny(2)
hint := ref.Type().Elem()
convertedValue, err := lValueToReflect(L, value, hint, nil)
if err != nil {
L.ArgError(2, err.Error())
}
ref.Send(convertedValue)
return 0
default:
L.RaiseError("expecting 1 or 2 arguments, got %d", L.GetTop())
panic("never reaches")
}
}
func chanUnm(L *lua.LState) int {
ref, _ := check(L, 1)
ref.Close()
return 0
}
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