From fcd9fc30d2fa41b2267a6539e5806735bae8931d Mon Sep 17 00:00:00 2001
From: iximeow <me@iximeow.net>
Date: Sun, 21 Mar 2021 14:30:17 -0700
Subject: make Opcode, Operand, and DecodeError non_exhaustive

in the future these can and will change (new operands, new instructions) and i would prefer they not be major breaking changes. applications can ignore them and probably do undesired variants anyway.

if you want to write a 1120-variant match, are you me? why would you do this
---
 src/long_mode/mod.rs      | 3 +++
 src/protected_mode/mod.rs | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/src/long_mode/mod.rs b/src/long_mode/mod.rs
index 5ca6542..2935385 100644
--- a/src/long_mode/mod.rs
+++ b/src/long_mode/mod.rs
@@ -429,6 +429,7 @@ enum SizeCode {
 }
 
 #[derive(Clone, Debug, PartialEq)]
+#[non_exhaustive]
 pub enum Operand {
     ImmediateI8(i8),
     ImmediateU8(u8),
@@ -883,6 +884,7 @@ const XSAVE: [Opcode; 10] = [
 
 #[allow(non_camel_case_types)]
 #[derive(Copy, Clone, Debug, Eq, PartialEq)]
+#[non_exhaustive]
 pub enum Opcode {
     Invalid,
     ADD,
@@ -1997,6 +1999,7 @@ impl yaxpeax_arch::Instruction for Instruction {
 }
 
 #[derive(Debug, PartialEq)]
+#[non_exhaustive]
 pub enum DecodeError {
     ExhaustedInput,
     InvalidOpcode,
diff --git a/src/protected_mode/mod.rs b/src/protected_mode/mod.rs
index 6394de0..a089fc2 100644
--- a/src/protected_mode/mod.rs
+++ b/src/protected_mode/mod.rs
@@ -366,6 +366,7 @@ enum SizeCode {
 }
 
 #[derive(Clone, Debug, PartialEq)]
+#[non_exhaustive]
 pub enum Operand {
     ImmediateI8(i8),
     ImmediateU8(u8),
@@ -782,6 +783,7 @@ const XSAVE: [Opcode; 10] = [
 // UMWAIT
 #[allow(non_camel_case_types)]
 #[derive(Copy, Clone, Debug, Eq, PartialEq)]
+#[non_exhaustive]
 pub enum Opcode {
     Invalid,
     ADD,
@@ -1800,6 +1802,7 @@ impl yaxpeax_arch::Instruction for Instruction {
 }
 
 #[derive(Debug, PartialEq)]
+#[non_exhaustive]
 pub enum DecodeError {
     ExhaustedInput,
     InvalidOpcode,
-- 
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