# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1529858823 -7200
# Node ID ed201ad4d8e1cf534ccb45e959fff38da99b7f07
# Parent  cab08f354ecb8b2501074a90da3a8c4724d8c274
Moved next method retrieval outside "for" loop bodies. Due to alias-related
improvements, the temporary name providing access to the method should yield
reference information and cause the method to be efficiently invoked.

diff -r cab08f354ecb -r ed201ad4d8e1 common.py
--- a/common.py	Sun Jun 24 18:43:57 2018 +0200
+++ b/common.py	Sun Jun 24 18:47:03 2018 +0200
@@ -552,6 +552,8 @@
         self.next_temporary()
         t1 = self.get_temporary_name()
         self.next_temporary()
+        t2 = self.get_temporary_name()
+        self.next_temporary()
 
         node = compiler.ast.Stmt([
 
@@ -568,13 +570,18 @@
                     compiler.ast.Getattr(compiler.ast.Name(t0), "__iter__"),
                     [])),
 
+            # <t2> = <t1>.next
             # try:
             #     while True:
-            #         <var>... = <t1>.next()
+            #         <var>... = <t2>()
             #         ...
             # except StopIteration:
             #     pass
 
+            compiler.ast.Assign(
+                [compiler.ast.AssName(t2, "OP_ASSIGN")],
+                compiler.ast.Getattr(compiler.ast.Name(t1), "next")),
+
             compiler.ast.TryExcept(
                 compiler.ast.While(
                     compiler.ast.Name("True"),
@@ -582,7 +589,7 @@
                         compiler.ast.Assign(
                             [n.assign],
                             compiler.ast.CallFunc(
-                                compiler.ast.Getattr(compiler.ast.Name(t1), "next"),
+                                compiler.ast.Name(t2),
                                 []
                                 )),
                         n.body]),