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Diffstat (limited to 'vendor/github.com/chenzhuoyu/iasm/x86_64/eface.go')
-rw-r--r--vendor/github.com/chenzhuoyu/iasm/x86_64/eface.go63
1 files changed, 63 insertions, 0 deletions
diff --git a/vendor/github.com/chenzhuoyu/iasm/x86_64/eface.go b/vendor/github.com/chenzhuoyu/iasm/x86_64/eface.go
new file mode 100644
index 000000000..b5607e8f9
--- /dev/null
+++ b/vendor/github.com/chenzhuoyu/iasm/x86_64/eface.go
@@ -0,0 +1,63 @@
+package x86_64
+
+import (
+ `reflect`
+ `unsafe`
+)
+
+type _GoType struct {
+ size uintptr
+ pdata uintptr
+ hash uint32
+ flags uint8
+ align uint8
+ falign uint8
+ kflags uint8
+ traits unsafe.Pointer
+ gcdata *byte
+ str int32
+ ptrx int32
+}
+
+const (
+ _KindMask = (1 << 5) - 1
+)
+
+func (self *_GoType) kind() reflect.Kind {
+ return reflect.Kind(self.kflags & _KindMask)
+}
+
+type _GoSlice struct {
+ ptr unsafe.Pointer
+ len int
+ cap int
+}
+
+type _GoEface struct {
+ vt *_GoType
+ ptr unsafe.Pointer
+}
+
+func (self *_GoEface) kind() reflect.Kind {
+ if self.vt != nil {
+ return self.vt.kind()
+ } else {
+ return reflect.Invalid
+ }
+}
+
+func (self *_GoEface) toInt64() int64 {
+ if self.vt.size == 8 {
+ return *(*int64)(self.ptr)
+ } else if self.vt.size == 4 {
+ return int64(*(*int32)(self.ptr))
+ } else if self.vt.size == 2 {
+ return int64(*(*int16)(self.ptr))
+ } else {
+ return int64(*(*int8)(self.ptr))
+ }
+}
+
+func efaceOf(v interface{}) _GoEface {
+ return *(*_GoEface)(unsafe.Pointer(&v))
+}