From 279c21b816777b8b25457b27fd1994a9fe359a98 Mon Sep 17 00:00:00 2001
From: dearblue <dearblue@users.noreply.github.com>
Date: Sun, 18 Aug 2019 14:45:35 +0900
Subject: Prohibit changes to iseq in principle

---
 include/mruby.h      | 10 +++++-----
 include/mruby/irep.h |  4 ++--
 2 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/include/mruby.h b/include/mruby.h
index 55505a213..b1b983f52 100644
--- a/include/mruby.h
+++ b/include/mruby.h
@@ -127,8 +127,8 @@ typedef struct {
   uint16_t ridx;
   uint16_t epos;
   struct REnv *env;
-  mrb_code *pc;                 /* return address */
-  mrb_code *err;                /* error position */
+  const mrb_code *pc;           /* return address */
+  const mrb_code *err;          /* error position */
   int argc;
   int acc;
   struct RClass *target_class;
@@ -243,8 +243,8 @@ typedef struct mrb_state {
 #endif
 
 #ifdef MRB_ENABLE_DEBUG_HOOK
-  void (*code_fetch_hook)(struct mrb_state* mrb, struct mrb_irep *irep, mrb_code *pc, mrb_value *regs);
-  void (*debug_op_hook)(struct mrb_state* mrb, struct mrb_irep *irep, mrb_code *pc, mrb_value *regs);
+  void (*code_fetch_hook)(struct mrb_state* mrb, struct mrb_irep *irep, const mrb_code *pc, mrb_value *regs);
+  void (*debug_op_hook)(struct mrb_state* mrb, struct mrb_irep *irep, const mrb_code *pc, mrb_value *regs);
 #endif
 
 #ifdef MRB_BYTECODE_DECODE_OPTION
@@ -1057,7 +1057,7 @@ MRB_API mrb_value mrb_top_self(mrb_state *);
 MRB_API mrb_value mrb_run(mrb_state*, struct RProc*, mrb_value);
 MRB_API mrb_value mrb_top_run(mrb_state*, struct RProc*, mrb_value, unsigned int);
 MRB_API mrb_value mrb_vm_run(mrb_state*, struct RProc*, mrb_value, unsigned int);
-MRB_API mrb_value mrb_vm_exec(mrb_state*, struct RProc*, mrb_code*);
+MRB_API mrb_value mrb_vm_exec(mrb_state*, struct RProc*, const mrb_code*);
 /* compatibility macros */
 #define mrb_toplevel_run_keep(m,p,k) mrb_top_run((m),(p),mrb_top_self(m),(k))
 #define mrb_toplevel_run(m,p) mrb_toplevel_run_keep((m),(p),0)
diff --git a/include/mruby/irep.h b/include/mruby/irep.h
index d42fd0fb8..2989e0647 100644
--- a/include/mruby/irep.h
+++ b/include/mruby/irep.h
@@ -32,7 +32,7 @@ typedef struct mrb_irep {
   uint16_t nregs;          /* Number of register variables */
   uint8_t flags;
 
-  mrb_code *iseq;
+  const mrb_code *iseq;
   mrb_value *pool;
   mrb_sym *syms;
   struct mrb_irep **reps;
@@ -80,7 +80,7 @@ struct mrb_insn_data {
   uint8_t c;
 };
 
-struct mrb_insn_data mrb_decode_insn(mrb_code *pc);
+struct mrb_insn_data mrb_decode_insn(const mrb_code *pc);
 
 MRB_END_DECL
 
-- 
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