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internal/lib/reflect: Value.InterfaceData

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visualfc
2024-11-14 10:40:42 +08:00
parent 5fb8503fd2
commit 1851bce497
1 changed files with 11 additions and 12 deletions
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23
internal/lib/reflect/value.go
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@@ -791,18 +791,15 @@ func valueInterface(v Value, safe bool) any {
// Deprecated: The memory representation of interface values is not // Deprecated: The memory representation of interface values is not
// compatible with InterfaceData. // compatible with InterfaceData.
func (v Value) InterfaceData() [2]uintptr { func (v Value) InterfaceData() [2]uintptr {
/* v.mustBe(Interface)
v.mustBe(Interface) // The compiler loses track as it converts to uintptr. Force escape.
// The compiler loses track as it converts to uintptr. Force escape. escapes(v.ptr)
escapes(v.ptr) // We treat this as a read operation, so we allow
// We treat this as a read operation, so we allow // it even for unexported data, because the caller
// it even for unexported data, because the caller // has to import "unsafe" to turn it into something
// has to import "unsafe" to turn it into something // that can be abused.
// that can be abused. // Interface value is always bigger than a word; assume flagIndir.
// Interface value is always bigger than a word; assume flagIndir. return *(*[2]uintptr)(v.ptr)
return *(*[2]uintptr)(v.ptr)
*/
panic("todo: reflect.Value.InterfaceData")
} }
// IsNil reports whether its argument v is nil. The argument must be // IsNil reports whether its argument v is nil. The argument must be
@@ -1035,6 +1032,8 @@ func (v Value) Pointer() uintptr {
// so their Pointers are equal. The function used here must // so their Pointers are equal. The function used here must
// match the one used in makeMethodValue. // match the one used in makeMethodValue.
// return methodValueCallCodePtr() // return methodValueCallCodePtr()
_, _, fn := methodReceiver("unsafePointer", v, int(v.flag)>>flagMethodShift)
return uintptr(fn)
} }
p := v.pointer() p := v.pointer()
// Non-nil func value points at data block. // Non-nil func value points at data block.