Merge pull request #329 from 0xProject/feature/contracts/versioning

Implement stop-gap smart contract versioning

1 files changed, 35 insertions, 0 deletions

diff --git a/packages/contracts/src/current/tokens/Token/Token.sol b/packages/contracts/src/current/tokens/Token/Token.sol
new file mode 100644
index 000000000..bf4e71dcd
--- /dev/null
+++ b/packages/contracts/src/current/tokens/Token/Token.sol
@@ -0,0 +1,35 @@
+pragma solidity ^0.4.18;
+
+contract Token {
+
+    /// @notice send `_value` token to `_to` from `msg.sender`
+    /// @param _to The address of the recipient
+    /// @param _value The amount of token to be transferred
+    /// @return Whether the transfer was successful or not
+    function transfer(address _to, uint _value) public returns (bool) {}
+
+    /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
+    /// @param _from The address of the sender
+    /// @param _to The address of the recipient
+    /// @param _value The amount of token to be transferred
+    /// @return Whether the transfer was successful or not
+    function transferFrom(address _from, address _to, uint _value) public returns (bool) {}
+
+    /// @notice `msg.sender` approves `_addr` to spend `_value` tokens
+    /// @param _spender The address of the account able to transfer the tokens
+    /// @param _value The amount of wei to be approved for transfer
+    /// @return Whether the approval was successful or not
+    function approve(address _spender, uint _value) public returns (bool) {}
+
+    /// @param _owner The address from which the balance will be retrieved
+    /// @return The balance
+    function balanceOf(address _owner) public view returns (uint) {}
+
+    /// @param _owner The address of the account owning tokens
+    /// @param _spender The address of the account able to transfer the tokens
+    /// @return Amount of remaining tokens allowed to spent
+    function allowance(address _owner, address _spender) public view returns (uint) {}
+
+    event Transfer(address indexed _from, address indexed _to, uint _value);
+    event Approval(address indexed _owner, address indexed _spender, uint _value);
+}