Merge pull request #5753 from ethereum/docs-split-interfaces

[DOCS] Split interfaces into new file

2 files changed, 37 insertions, 37 deletions

diff --git a/docs/contracts.rst b/docs/contracts.rst
index f72707cb..8d6e2fe4 100644
--- a/docs/contracts.rst
+++ b/docs/contracts.rst
@@ -534,43 +534,7 @@ converted to ``uint8``.
 .. include:: contracts/inheritance.rst
 
 .. include:: contracts/abstract-contracts.rst
-
-.. index:: ! contract;interface, ! interface contract
-
-.. _interfaces:
-
-**********
-Interfaces
-**********
-
-Interfaces are similar to abstract contracts, but they cannot have any functions implemented. There are further restrictions:
-
-- They cannot inherit other contracts or interfaces.
-- All declared functions must be external.
-- They cannot declare a constructor.
-- They cannot declare state variables.
-
-Some of these restrictions might be lifted in the future.
-
-Interfaces are basically limited to what the Contract ABI can represent, and the conversion between the ABI and
-an interface should be possible without any information loss.
-
-Interfaces are denoted by their own keyword:
-
-::
-
-    pragma solidity ^0.5.0;
-
-    interface Token {
-        enum TokenType { Fungible, NonFungible }
-        struct Coin { string obverse; string reverse; }
-        function transfer(address recipient, uint amount) external;
-    }
-
-Contracts can inherit interfaces as they would inherit other contracts.
-
-Types defined inside interfaces and other contract-like structures
-can be accessed from other contracts: ``Token.TokenType`` or ``Token.Coin``.
+.. include:: contracts/interfaces.rst
 
 .. index:: ! library, callcode, delegatecall
 
diff --git a/docs/contracts/interfaces.rst b/docs/contracts/interfaces.rst
new file mode 100644
index 00000000..b551b518
--- /dev/null
+++ b/docs/contracts/interfaces.rst
@@ -0,0 +1,36 @@
+.. index:: ! contract;interface, ! interface contract
+
+.. _interfaces:
+
+**********
+Interfaces
+**********
+
+Interfaces are similar to abstract contracts, but they cannot have any functions implemented. There are further restrictions:
+
+- They cannot inherit other contracts or interfaces.
+- All declared functions must be external.
+- They cannot declare a constructor.
+- They cannot declare state variables.
+
+Some of these restrictions might be lifted in the future.
+
+Interfaces are basically limited to what the Contract ABI can represent, and the conversion between the ABI and
+an interface should be possible without any information loss.
+
+Interfaces are denoted by their own keyword:
+
+::
+
+    pragma solidity ^0.5.0;
+
+    interface Token {
+        enum TokenType { Fungible, NonFungible }
+        struct Coin { string obverse; string reverse; }
+        function transfer(address recipient, uint amount) external;
+    }
+
+Contracts can inherit interfaces as they would inherit other contracts.
+
+Types defined inside interfaces and other contract-like structures
+can be accessed from other contracts: ``Token.TokenType`` or ``Token.Coin``.