From 58a839bd149ba5a6e0c3c74081739379c48c2af0 Mon Sep 17 00:00:00 2001
From: saifkatoutatcom <saif@atcom.ae>
Date: Wed, 31 May 2023 20:25:56 +0400
Subject: [PATCH] #891 Call functions

Fixed call functions of the #891 issue.
---
 crates/library/std/src/context.fe | 18 +++++++-----------
 crates/library/std/src/evm.fe     | 10 ++++++----
 2 files changed, 13 insertions(+), 15 deletions(-)

diff --git a/crates/library/std/src/context.fe b/crates/library/std/src/context.fe
index 3632e1f7dc..41d389b61d 100644
--- a/crates/library/std/src/context.fe
+++ b/crates/library/std/src/context.fe
@@ -81,11 +81,10 @@ pub struct Context {
             if evm::balance() < wei {
                 revert Error(code: ERROR_INSUFFICIENT_FUNDS_TO_SEND_VALUE)
             }
-
-            let success: u256 = evm::call(gas: evm::gas_remaining(), addr: to, value: wei,
-                                          input_offset: 0, input_len: 0,
-                                          output_offset: 0, output_len: 0)
-            if success == 0 {
+            let buffer: RawCallBuffer = RawCallBuffer::new(input_len: 0, output_len: 0)
+            let success: bool = evm::call(gas: evm::gas_remaining(), addr: to, value: wei,
+                                          buffer)
+            if success {
                 revert Error(code: ERROR_FAILED_SEND_VALUE)
             }
         }
@@ -96,18 +95,15 @@ pub struct Context {
         self, 
         addr: address, 
         value: u256, 
-        mut buf: RawCallBuffer 
+        buffer: RawCallBuffer 
     ) -> bool {
         unsafe {
             return evm::call(
                 gas: evm::gas_remaining(), 
                 addr, 
                 value,
-                input_offset: buf.offset(), 
-                input_len: buf.input_len(),
-                output_offset: buf.offset(), 
-                output_len: buf.output_len()
-            ) == 1
+                buffer
+            ) 
         }
     }
 
diff --git a/crates/library/std/src/evm.fe b/crates/library/std/src/evm.fe
index fb524c2e04..bced433e2d 100644
--- a/crates/library/std/src/evm.fe
+++ b/crates/library/std/src/evm.fe
@@ -1,3 +1,5 @@
+use ingot::buf
+
 // Basic context accessor functions.
 pub unsafe fn chain_id() -> u256 {
   return __chainid()
@@ -236,8 +238,8 @@ pub unsafe fn call_data_size() -> u256 {
     return __calldatasize()
 }
 
-pub unsafe fn call_data_copy(to_offset t: u256, from_offset f: u256, len: u256) {
-    __calldatacopy(t, f, len)
+pub fn call_data_copy(buffer: buf::MemoryBuffer) {
+    unsafe { __calldatacopy(buffer.offset(), buffer.offset(), buffer.len()) }
 }
 
 pub unsafe fn code_size() -> u256 {
@@ -284,8 +286,8 @@ pub unsafe fn create2(value v: u256, offset p: u256, len n: u256, salt s: u256)
 }
 
 // TODO: return bool (success)
-pub unsafe fn call(gas: u256, addr: address, value: u256, input_offset: u256, input_len: u256, output_offset: u256, output_len: u256) -> u256 {
-    return __call(gas, u256(addr), value, input_offset, input_len, output_offset, output_len)
+pub fn call(gas: u256, addr: address, value: u256, buffer: buf::RawCallBuffer) -> bool {
+  unsafe{ return __call(gas, u256(addr), value, buffer.offset(), buffer.input_len(), buffer.offset(), buffer.output_len()) == 1 }
 }
 
 pub unsafe fn call_code(gas: u256, addr: address, value: u256, input_offset: u256, input_len: u256, output_offset: u256, output_len: u256) -> u256 {