From 557e89f1a22a99f26dfc93abc4e16a2832858037 Mon Sep 17 00:00:00 2001
From: Andrew Noyes <andrew@weaselab.dev>
Date: Tue, 13 May 2025 11:58:31 -0400
Subject: [PATCH] Remove PRESERVE_NONE

---
 src/test.cpp | 30 ++++++++++++------------------
 1 file changed, 12 insertions(+), 18 deletions(-)

diff --git a/src/test.cpp b/src/test.cpp
index aee4016..2df37f5 100644
--- a/src/test.cpp
+++ b/src/test.cpp
@@ -416,12 +416,6 @@ private:
 #define MUSTTAIL
 #endif
 
-#if __has_attribute(preserve_none)
-#define PRESERVE_NONE __attribute__((preserve_none))
-#else
-#define PRESERVE_NONE
-#endif
-
 struct Parser2 {
   Parser2(char *buf, int len, const Callbacks *callbacks, void *data)
       : buf(buf), len(len), callbacks(callbacks), data(data) {}
@@ -498,7 +492,7 @@ private:
     return true;
   }
 
-  typedef PRESERVE_NONE bool (*continuation)(Parser2 *);
+  typedef bool (*continuation)(Parser2 *);
 
   [[maybe_unused]] void debugPrint(Symbol token) {
     printf("token: %s\n", symbolNames[token]);
@@ -508,12 +502,12 @@ private:
     printf("\n");
   }
 
-  PRESERVE_NONE static bool tokenMatch(Parser2 *self) {
+  static bool tokenMatch(Parser2 *self) {
     self->pop();
     MUSTTAIL return keepGoing(self);
   }
 
-  PRESERVE_NONE static bool keepGoing(Parser2 *self) {
+  static bool keepGoing(Parser2 *self) {
     if (self->empty()) {
       return true;
     }
@@ -522,11 +516,11 @@ private:
     MUSTTAIL return table[*(self->stackPtr - 1)][token](self);
   }
 
-  PRESERVE_NONE static bool reject(Parser2 *self) {
+  static bool reject(Parser2 *self) {
     self->pop();
     return false;
   }
-  PRESERVE_NONE static bool object(Parser2 *self) {
+  static bool object(Parser2 *self) {
     self->pop();
     self->callbacks->on_begin_object(self->data);
     if (!self->push({T_STRING, T_COLON, N_VALUE, N_OBJECT_MAYBE_CONTINUE})) {
@@ -534,7 +528,7 @@ private:
     }
     MUSTTAIL return keepGoing(self);
   }
-  PRESERVE_NONE static bool atom(Parser2 *self) {
+  static bool atom(Parser2 *self) {
     self->pop();
     if (*self->bufBefore == 't') {
       self->callbacks->on_true_literal(self->data);
@@ -550,11 +544,11 @@ private:
     }
     MUSTTAIL return keepGoing(self);
   }
-  PRESERVE_NONE static bool string(Parser2 *self) {
+  static bool string(Parser2 *self) {
     self->pop();
     MUSTTAIL return keepGoing(self);
   }
-  PRESERVE_NONE static bool array(Parser2 *self) {
+  static bool array(Parser2 *self) {
     self->pop();
     self->callbacks->on_begin_array(self->data);
     if (!self->push({N_VALUE, N_ARRAY_MAYBE_CONTINUE})) {
@@ -562,26 +556,26 @@ private:
     }
     MUSTTAIL return keepGoing(self);
   }
-  PRESERVE_NONE static bool continueArray(Parser2 *self) {
+  static bool continueArray(Parser2 *self) {
     self->pop();
     if (!self->push({N_VALUE, N_ARRAY_MAYBE_CONTINUE})) {
       return false;
     }
     MUSTTAIL return keepGoing(self);
   }
-  PRESERVE_NONE static bool continueObject(Parser2 *self) {
+  static bool continueObject(Parser2 *self) {
     self->pop();
     if (!self->push({T_STRING, T_COLON, N_VALUE, N_OBJECT_MAYBE_CONTINUE})) {
       return false;
     }
     MUSTTAIL return keepGoing(self);
   }
-  PRESERVE_NONE static bool finishArray(Parser2 *self) {
+  static bool finishArray(Parser2 *self) {
     self->pop();
     self->callbacks->on_end_array(self->data);
     MUSTTAIL return keepGoing(self);
   }
-  PRESERVE_NONE static bool finishObject(Parser2 *self) {
+  static bool finishObject(Parser2 *self) {
     self->pop();
     self->callbacks->on_end_object(self->data);
     MUSTTAIL return keepGoing(self);