From 99c585fd8a11ff6e10e7f59632dc060fd05065a1 Mon Sep 17 00:00:00 2001
From: Alex Beregszaszi <alex@rtfs.hu>
Date: Mon, 11 Jun 2018 18:12:23 +0100
Subject: [PATCH] Remove obsolete 'std' directory

---
 Changelog.md          |  1 +
 std/StandardToken.sol | 59 -------------------------------------------
 std/Token.sol         | 13 ----------
 std/mortal.sol        | 10 --------
 std/owned.sol         | 15 -----------
 std/std.sol           |  6 -----
 test/cmdlineTests.sh  | 12 ---------
 7 files changed, 1 insertion(+), 115 deletions(-)
 delete mode 100644 std/StandardToken.sol
 delete mode 100644 std/Token.sol
 delete mode 100644 std/mortal.sol
 delete mode 100644 std/owned.sol
 delete mode 100644 std/std.sol

diff --git a/Changelog.md b/Changelog.md
index f28278b3c..7125bd302 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -11,6 +11,7 @@ Breaking Changes:
  * Type Checker: Disallow arithmetic operations for Boolean variables.
  * Disallow trailing dots that are not followed by a number.
  * Remove assembly instructions ``sha3`` and ``suicide``
+ * Remove obsolete ``std`` directory from the Solidity repository. This means accessing ``https://github.com/ethereum/soldity/blob/develop/std/*.sol`` (or ``https://github.com/ethereum/solidity/std/*.sol`` in Remix) will not be possible.
 
 Language Features:
  * General: Allow appending ``calldata`` keyword to types, to explicitly specify data location for arguments of external functions.
diff --git a/std/StandardToken.sol b/std/StandardToken.sol
deleted file mode 100644
index c2fc3a669..000000000
--- a/std/StandardToken.sol
+++ /dev/null
@@ -1,59 +0,0 @@
-pragma solidity ^0.4.22;
-
-import "./Token.sol";
-
-contract StandardToken is Token {
-	uint256 supply;
-	mapping (address => uint256) balance;
-	mapping (address =>
-		mapping (address => uint256)) m_allowance;
-
-	constructor(address _initialOwner, uint256 _supply) public {
-		supply = _supply;
-		balance[_initialOwner] = _supply;
-	}
-
-	function balanceOf(address _account) view public returns (uint) {
-		return balance[_account];
-	}
-
-	function totalSupply() view public returns (uint) {
-		return supply;
-	}
-
-	function transfer(address _to, uint256 _value) public returns (bool success) {
-		return doTransfer(msg.sender, _to, _value);
-	}
-
-	function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
-		if (m_allowance[_from][msg.sender] >= _value) {
-			if (doTransfer(_from, _to, _value)) {
-				m_allowance[_from][msg.sender] -= _value;
-			}
-			return true;
-		} else {
-			return false;
-		}
-	}
-
-	function doTransfer(address _from, address _to, uint _value) internal returns (bool success) {
-		if (balance[_from] >= _value && balance[_to] + _value >= balance[_to]) {
-			balance[_from] -= _value;
-			balance[_to] += _value;
-			emit Transfer(_from, _to, _value);
-			return true;
-		} else {
-			return false;
-		}
-	}
-
-	function approve(address _spender, uint256 _value) public returns (bool success) {
-		m_allowance[msg.sender][_spender] = _value;
-		emit Approval(msg.sender, _spender, _value);
-		return true;
-	}
-
-	function allowance(address _owner, address _spender) view public returns (uint256) {
-		return m_allowance[_owner][_spender];
-	}
-}
diff --git a/std/Token.sol b/std/Token.sol
deleted file mode 100644
index 7348a8f52..000000000
--- a/std/Token.sol
+++ /dev/null
@@ -1,13 +0,0 @@
-pragma solidity ^0.4.0;
-
-contract Token {
-	event Transfer(address indexed _from, address indexed _to, uint256 _value);
-	event Approval(address indexed _owner, address indexed _spender, uint256 _value);
-
-	function totalSupply() view public returns (uint256 supply);
-	function balanceOf(address _owner) view public returns (uint256 balance);
-	function transfer(address _to, uint256 _value) public returns (bool success);
-	function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);
-	function approve(address _spender, uint256 _value) public returns (bool success);
-	function allowance(address _owner, address _spender) view public returns (uint256 remaining);
-}
diff --git a/std/mortal.sol b/std/mortal.sol
deleted file mode 100644
index c43f1e4f7..000000000
--- a/std/mortal.sol
+++ /dev/null
@@ -1,10 +0,0 @@
-pragma solidity ^0.4.0;
-
-import "./owned.sol";
-
-contract mortal is owned {
-    function kill() public {
-        if (msg.sender == owner)
-            selfdestruct(owner);
-    }
-}
diff --git a/std/owned.sol b/std/owned.sol
deleted file mode 100644
index 75007f3ec..000000000
--- a/std/owned.sol
+++ /dev/null
@@ -1,15 +0,0 @@
-pragma solidity ^0.4.22;
-
-contract owned {
-    address owner;
-
-    modifier onlyowner() {
-        if (msg.sender == owner) {
-            _;
-        }
-    }
-
-    constructor() public {
-        owner = msg.sender;
-    }
-}
diff --git a/std/std.sol b/std/std.sol
deleted file mode 100644
index 4d65bef2a..000000000
--- a/std/std.sol
+++ /dev/null
@@ -1,6 +0,0 @@
-pragma solidity ^0.4.0;
-
-import "./owned.sol";
-import "./mortal.sol";
-import "./Token.sol";
-import "./StandardToken.sol";
diff --git a/test/cmdlineTests.sh b/test/cmdlineTests.sh
index 74b6a5a7c..e8ff69de7 100755
--- a/test/cmdlineTests.sh
+++ b/test/cmdlineTests.sh
@@ -37,10 +37,6 @@ FULLARGS="--optimize --ignore-missing --combined-json abi,asm,ast,bin,bin-runtim
 echo "Checking that the bug list is up to date..."
 "$REPO_ROOT"/scripts/update_bugs_by_version.py
 
-echo "Checking that StandardToken.sol, owned.sol and mortal.sol produce bytecode..."
-output=$("$REPO_ROOT"/build/solc/solc --bin "$REPO_ROOT"/std/*.sol 2>/dev/null | grep "ffff" | wc -l)
-test "${output//[[:blank:]]/}" = "3"
-
 function printTask() { echo "$(tput bold)$(tput setaf 2)$1$(tput sgr0)"; }
 
 function printError() { echo "$(tput setaf 1)$1$(tput sgr0)"; }
@@ -113,14 +109,6 @@ do
 done
 )
 
-printTask "Compiling all files in std and examples..."
-
-for f in "$REPO_ROOT"/std/*.sol
-do
-    echo "$f"
-    compileWithoutWarning "$f"
-done
-
 printTask "Compiling all examples from the documentation..."
 TMPDIR=$(mktemp -d)
 (