From cb9d3e4829cab4f43bb179f77111488e20b2b9ef Mon Sep 17 00:00:00 2001
From: Ayush Kumar Mishra <ayushmishra2005@gmail.com>
Date: Thu, 21 Jan 2021 15:52:10 +0530
Subject: [PATCH] #13 Exposed safe blst_scalar_constructor

---
 bindings/rust/src/bindings.rs | 56 ++++++++++++++++++++++++-----------
 1 file changed, 39 insertions(+), 17 deletions(-)

diff --git a/bindings/rust/src/bindings.rs b/bindings/rust/src/bindings.rs
index 981062a9..53f143f7 100644
--- a/bindings/rust/src/bindings.rs
+++ b/bindings/rust/src/bindings.rs
@@ -182,33 +182,58 @@ fn bindgen_test_layout_blst_fp12() {
         )
     );
 }
-extern "C" {
-    pub fn blst_scalar_from_uint32(out: *mut blst_scalar, a: *const u32);
+mod sys{
+    use super::{blst_scalar, blst_fr, byte};
+    extern "C" {
+        pub fn blst_scalar_from_uint32(out: *mut blst_scalar, a: *const u32);
+    }
+    extern "C" {
+        pub fn blst_scalar_from_uint64(out: *mut blst_scalar, a: *const u64);
+    }
+    extern "C" {
+        pub fn blst_scalar_from_bendian(out: *mut blst_scalar, a: *const byte);
+    }
+    extern "C" {
+        pub fn blst_scalar_from_lendian(out: *mut blst_scalar, a: *const byte);
+    }
+    extern "C" {
+        pub fn blst_scalar_fr_check(a: *const blst_scalar) -> bool;
+    }
+    extern "C" {
+        pub fn blst_scalar_from_fr(ret: *mut blst_scalar, a: *const blst_fr);
+    }
+}
+pub fn blst_scalar_from_uint32(out: *mut blst_scalar, a: *const u32) {
+    unsafe { sys::blst_scalar_from_uint32(out, a) }
+}
+pub fn blst_scalar_from_uint64(out: *mut blst_scalar, a: *const u64) {
+    unsafe { sys::blst_scalar_from_uint64(out, a) }
+}
+pub fn blst_scalar_from_bendian(out: *mut blst_scalar, a: *const byte) {
+    unsafe { sys::blst_scalar_from_bendian(out, a) }
+}
+pub fn blst_scalar_from_lendian(out: *mut blst_scalar, a: *const byte) {
+    unsafe { sys::blst_scalar_from_lendian(out, a) }
+}
+pub fn blst_scalar_fr_check(a: *const blst_scalar) -> bool {
+    unsafe { sys::blst_scalar_fr_check(a) }
+}
+pub fn blst_scalar_from_fr(ret: *mut blst_scalar, a: *const blst_fr) {
+    unsafe { sys::blst_scalar_from_fr(ret, a)}
 }
+
 extern "C" {
     pub fn blst_uint32_from_scalar(out: *mut u32, a: *const blst_scalar);
 }
-extern "C" {
-    pub fn blst_scalar_from_uint64(out: *mut blst_scalar, a: *const u64);
-}
 extern "C" {
     pub fn blst_uint64_from_scalar(out: *mut u64, a: *const blst_scalar);
 }
-extern "C" {
-    pub fn blst_scalar_from_bendian(out: *mut blst_scalar, a: *const byte);
-}
 extern "C" {
     pub fn blst_bendian_from_scalar(out: *mut byte, a: *const blst_scalar);
 }
-extern "C" {
-    pub fn blst_scalar_from_lendian(out: *mut blst_scalar, a: *const byte);
-}
 extern "C" {
     pub fn blst_lendian_from_scalar(out: *mut byte, a: *const blst_scalar);
 }
-extern "C" {
-    pub fn blst_scalar_fr_check(a: *const blst_scalar) -> bool;
-}
 extern "C" {
     pub fn blst_sk_check(a: *const blst_scalar) -> bool;
 }
@@ -248,9 +273,6 @@ extern "C" {
 extern "C" {
     pub fn blst_fr_from_scalar(ret: *mut blst_fr, a: *const blst_scalar);
 }
-extern "C" {
-    pub fn blst_scalar_from_fr(ret: *mut blst_scalar, a: *const blst_fr);
-}
 extern "C" {
     pub fn blst_fp_add(ret: *mut blst_fp, a: *const blst_fp, b: *const blst_fp);
 }