From 96a0bb9e66334e2ee6de14b30d6720d3ff22357d Mon Sep 17 00:00:00 2001
From: Ms2ger <Ms2ger@gmail.com>
Date: Wed, 18 Nov 2015 15:17:31 +0100
Subject: [PATCH 1/2] Rename CallArgs::{get, get_mut} to {index, index_mut}.

CallArgs::get exists in C++ with different semantics. It is confusing to have
it exist in this form.
---
 src/rust.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/rust.rs b/src/rust.rs
index cab62e63d..950b25383 100644
--- a/src/rust.rs
+++ b/src/rust.rs
@@ -572,14 +572,14 @@ impl CallArgs {
         }
     }
 
-    pub fn get(&self, i: u32) -> HandleValue {
+    pub fn index(&self, i: u32) -> HandleValue {
         assert!(i < self._base.argc_);
         unsafe {
             HandleValue::from_marked_location(self._base._base.argv_.offset(i as isize))
         }
     }
 
-    pub fn get_mut(&self, i: u32) -> MutableHandleValue {
+    pub fn index_mut(&self, i: u32) -> MutableHandleValue {
         assert!(i < self._base.argc_);
         unsafe {
             MutableHandleValue::from_marked_location(self._base._base.argv_.offset(i as isize))

From 288af44d2da5eaa2d28df9af7577058eadad10e9 Mon Sep 17 00:00:00 2001
From: Ms2ger <Ms2ger@gmail.com>
Date: Wed, 18 Nov 2015 15:18:46 +0100
Subject: [PATCH 2/2] Introduce a new CallArgs::get().

This matches the semantics in C++.
---
 src/rust.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/rust.rs b/src/rust.rs
index 950b25383..ba5b0ed70 100644
--- a/src/rust.rs
+++ b/src/rust.rs
@@ -586,6 +586,16 @@ impl CallArgs {
         }
     }
 
+    pub fn get(&self, i: u32) -> HandleValue {
+        unsafe {
+            if i < self._base.argc_ {
+                HandleValue::from_marked_location(self._base._base.argv_.offset(i as isize))
+            } else {
+                UndefinedHandleValue
+            }
+        }
+    }
+
     pub fn rval(&self) -> MutableHandleValue {
         unsafe {
             MutableHandleValue::from_marked_location(self._base._base.argv_.offset(-2))