Merge pull request #1106 from jakerockland/no-none

Disallow use of `None`, disallow use of `del`, implemented `clear()` built-in function.
vyperlang · Dec 13, 2018 · 17a4f43 · 17a4f43
2 parents c8bd237 + e72fae4
commit 17a4f43
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diff --git a/docs/built-in-functions.rst b/docs/built-in-functions.rst
@@ -56,6 +56,20 @@ Rounds a decimal up to the nearest integer.
 
 Converts a variable/ literal from one type to another.
 
+**clear**
+-------------------------
+::
+
+  def clear(a):
+    """
+    :param a: variable to reset to its default value
+    :type a: all types
+
+    :output c: either decimal, int128, uint256 or bytes32
+    """
+
+Clears a variable's contents to the default value of its type.
+
 **as_wei_value**
 -------------------------
 ::

diff --git a/docs/index.rst b/docs/index.rst
@@ -55,6 +55,7 @@ Following the principles and goals, Vyper **does not** provide the following fea
 Compatibility-breaking Changelog
 ********************************
 
+8 **2018.12.12**: Disallow use of `None`, disallow use of `del`, implemented `clear()` built-in function.
 * **2018.11.19**: Change mapping syntax to use map(). (`VIP1026 <https://github.com/ethereum/vyper/issues/564>`_)
 * **2018.10.02**: Change the convert style to use types instead of string. (`VIP1026 <https://github.com/ethereum/vyper/issues/1026>`_)
 * **2018.09.24**: Add support for custom constants.

diff --git a/tests/parser/features/test_map_delete.py b/tests/parser/features/test_map_delete.py