98 lines
1.8 KiB
Go
98 lines
1.8 KiB
Go
package luar
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import (
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"reflect"
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"github.com/yuin/gopher-lua"
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)
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func structIndex(L *lua.LState) int {
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ref, mt := check(L, 1)
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key := L.CheckString(2)
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if fn := mt.method(key); fn != nil {
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L.Push(fn)
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return 1
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}
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ref = reflect.Indirect(ref)
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index := mt.fieldIndex(key)
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if index == nil {
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return 0
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}
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field := ref.FieldByIndex(index)
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if !field.CanInterface() {
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L.RaiseError("cannot interface field " + key)
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}
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if (field.Kind() == reflect.Struct || field.Kind() == reflect.Array) && field.CanAddr() {
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field = field.Addr()
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}
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L.Push(New(L, field.Interface()))
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return 1
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}
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func structPtrIndex(L *lua.LState) int {
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ref, mt := check(L, 1)
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key := L.CheckString(2)
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if fn := mt.method(key); fn != nil {
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L.Push(fn)
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return 1
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}
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ref = ref.Elem()
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mt = MT(L, ref.Interface())
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if fn := mt.method(key); fn != nil {
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L.Push(fn)
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return 1
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}
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index := mt.fieldIndex(key)
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if index == nil {
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return 0
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}
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field := ref.FieldByIndex(index)
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if !field.CanInterface() {
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L.RaiseError("cannot interface field " + key)
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}
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if (field.Kind() == reflect.Struct || field.Kind() == reflect.Array) && field.CanAddr() {
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field = field.Addr()
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}
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L.Push(New(L, field.Interface()))
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return 1
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}
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func structPtrNewIndex(L *lua.LState) int {
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ref, mt := check(L, 1)
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key := L.CheckString(2)
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value := L.CheckAny(3)
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ref = ref.Elem()
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mt = MT(L, ref.Interface())
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index := mt.fieldIndex(key)
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if index == nil {
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L.RaiseError("unknown field " + key)
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}
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field := ref.FieldByIndex(index)
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if !field.CanSet() {
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L.RaiseError("cannot set field " + key)
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}
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val, err := lValueToReflect(L, value, field.Type(), nil)
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if err != nil {
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L.ArgError(2, err.Error())
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}
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field.Set(val)
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return 0
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}
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func structEq(L *lua.LState) int {
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ref1, _ := check(L, 1)
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ref2, _ := check(L, 2)
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L.Push(lua.LBool(ref1.Interface() == ref2.Interface()))
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return 1
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}
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