From 6c299aae67e2e0f13a470b855298bc1efb43387a Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Mon, 7 Nov 2016 00:44:08 +0900
Subject: fixed wrong stack adjustment for ensure clauses; fix #3175

---
 src/vm.c            | 3 +++
 test/t/exception.rb | 5 ++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/vm.c b/src/vm.c
index fcc69a1f9..a7418e6e7 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1513,6 +1513,7 @@ RETRY_TRY_BLOCK:
       /* A B     return R(A) (B=normal,in-block return/break) */
       if (mrb->exc) {
         mrb_callinfo *ci;
+        mrb_value *stk;
         int eidx;
 
       L_RAISE:
@@ -1524,6 +1525,7 @@ RETRY_TRY_BLOCK:
           if (ci->ridx == 0) goto L_STOP;
           goto L_RESCUE;
         }
+        stk = mrb->c->stack;
         while (ci[0].ridx == ci[-1].ridx) {
           cipop(mrb);
           ci = mrb->c->ci;
@@ -1533,6 +1535,7 @@ RETRY_TRY_BLOCK:
             MRB_THROW(prev_jmp);
           }
           if (ci == mrb->c->cibase) {
+            mrb->c->stack = stk;
             while (eidx > 0) {
               ecall(mrb, --eidx);
             }
diff --git a/test/t/exception.rb b/test/t/exception.rb
index 839250ea8..2dc8f5487 100644
--- a/test/t/exception.rb
+++ b/test/t/exception.rb
@@ -338,10 +338,13 @@ assert('Exception 19') do
       begin
         1 * "b"
       ensure
-        @e = self.z
+        @e = self.zz
       end
     end
 
+    def zz
+      true
+    end
     def z
       true
     end
-- 
cgit v1.2.3


From 1142cf20370362ab2b974b235e7606246245ce23 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Tue, 8 Nov 2016 22:18:41 +0900
Subject: fixed a bug with [] in RHS of multiple assignments; fix #3236

---
 mrbgems/mruby-compiler/core/codegen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c
index efdd77888..c898acddc 100644
--- a/mrbgems/mruby-compiler/core/codegen.c
+++ b/mrbgems/mruby-compiler/core/codegen.c
@@ -1645,7 +1645,7 @@ codegen(codegen_scope *s, node *tree, int val)
       node *t = tree->cdr, *p;
       int rhs = cursp();
 
-      if ((intptr_t)t->car == NODE_ARRAY && nosplat(t->cdr)) {
+      if ((intptr_t)t->car == NODE_ARRAY && t->cdr && nosplat(t->cdr)) {
         /* fixed rhs */
         t = t->cdr;
         while (t) {
-- 
cgit v1.2.3


From 872517dff372ee6fde92c71861abf6ab9fbab958 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Tue, 8 Nov 2016 23:51:15 +0900
Subject: class variables in higher order have a priority; fix #3235

---
 src/variable.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/variable.c b/src/variable.c
index 3b5674923..29f43e69d 100644
--- a/src/variable.c
+++ b/src/variable.c
@@ -760,13 +760,15 @@ mrb_mod_cv_get(mrb_state *mrb, struct RClass * c, mrb_sym sym)
 {
   struct RClass * cls = c;
   mrb_value v;
+  int given = FALSE;
 
   while (c) {
     if (c->iv && iv_get(mrb, c->iv, sym, &v)) {
-      return v;
+      given = TRUE;
     }
     c = c->super;
   }
+  if (given) return v;
   if (cls && cls->tt == MRB_TT_SCLASS) {
     mrb_value klass;
 
@@ -774,12 +776,14 @@ mrb_mod_cv_get(mrb_state *mrb, struct RClass * c, mrb_sym sym)
                            mrb_intern_lit(mrb, "__attached__"));
     c = mrb_class_ptr(klass);
     if (c->tt == MRB_TT_CLASS || c->tt == MRB_TT_MODULE) {
+      given = FALSE;
       while (c) {
         if (c->iv && iv_get(mrb, c->iv, sym, &v)) {
-          return v;
+          given = TRUE;
         }
         c = c->super;
       }
+      if (given) return v;
     }
   }
   mrb_name_error(mrb, sym, "uninitialized class variable %S in %S",
-- 
cgit v1.2.3


From 3f002b6993df9ea4843e2479d706e7426d57bb5a Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Fri, 11 Nov 2016 04:37:42 +0900
Subject: fixed a bug when number of LHS and RHS differs; fix #3239

---
 mrbgems/mruby-compiler/core/codegen.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c
index c898acddc..9b064b867 100644
--- a/mrbgems/mruby-compiler/core/codegen.c
+++ b/mrbgems/mruby-compiler/core/codegen.c
@@ -1655,11 +1655,21 @@ codegen(codegen_scope *s, node *tree, int val)
         }
         tree = tree->car;
         if (tree->car) {                /* pre */
+          int first = TRUE;
           t = tree->car;
           n = 0;
           while (t) {
-            gen_assignment(s, t->car, rhs+n, NOVAL);
-            n++;
+            if (n < len) {
+              gen_assignment(s, t->car, rhs+n, NOVAL);
+              n++;
+            }
+            else {
+              if (first) {
+                genop(s, MKOP_A(OP_LOADNIL, rhs+n));
+                first = FALSE;
+              }
+              gen_assignment(s, t->car, rhs+n, NOVAL);
+            }
             t = t->cdr;
           }
         }
-- 
cgit v1.2.3