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Improve documentation and warning about accessing contract members inherited from address.

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This commit is contained in:
Daniel Kirchner 2018-04-13 17:28:08 +02:00
parent 2001cc6bdc
commit 05c5ab19fb
3 changed files with 5 additions and 3 deletions
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1
Changelog.md
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@ -17,6 +17,7 @@ Features:
* Syntax Checker: Issue warning for empty structs (or error as experimental 0.5.0 feature). * Syntax Checker: Issue warning for empty structs (or error as experimental 0.5.0 feature).
* Syntax Checker: Warn about modifiers on functions without implementation (this will turn into an error with version 0.5.0). * Syntax Checker: Warn about modifiers on functions without implementation (this will turn into an error with version 0.5.0).
* Syntax Tests: Add source locations to syntax test expectations. * Syntax Tests: Add source locations to syntax test expectations.
* Type Checker: Improve documentation and warnings for accessing contract members inherited from ``address``.
* General: Introduce new constructor syntax using the ``constructor`` keyword as experimental 0.5.0 feature. * General: Introduce new constructor syntax using the ``constructor`` keyword as experimental 0.5.0 feature.
* Inheritance: Error when using empty parentheses for base class constructors that require arguments as experimental 0.5.0 feature. * Inheritance: Error when using empty parentheses for base class constructors that require arguments as experimental 0.5.0 feature.
* Inheritance: Error when using no parentheses in modifier-style constructor calls as experimental 0.5.0 feature. * Inheritance: Error when using no parentheses in modifier-style constructor calls as experimental 0.5.0 feature.

4
docs/types.rst
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@ -179,8 +179,8 @@ All three functions ``call``, ``delegatecall`` and ``callcode`` are very low-lev
The ``.gas()`` option is available on all three methods, while the ``.value()`` option is not supported for ``delegatecall``. The ``.gas()`` option is available on all three methods, while the ``.value()`` option is not supported for ``delegatecall``.
.. note:: .. note::
All contracts inherit the members of address, so it is possible to query the balance of the All contracts can be converted to ``address`` type, so it is possible to query the balance of the
current contract using ``this.balance``. current contract using ``address(this).balance``.
.. note:: .. note::
The use of ``callcode`` is discouraged and will be removed in the future. The use of ``callcode`` is discouraged and will be removed in the future.

3
libsolidity/analysis/TypeChecker.cpp
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@ -1988,7 +1988,8 @@ bool TypeChecker::visit(MemberAccess const& _memberAccess)
m_errorReporter.warning( m_errorReporter.warning(
_memberAccess.location(), _memberAccess.location(),
"Using contract member \"" + memberName +"\" inherited from the address type is deprecated." + "Using contract member \"" + memberName +"\" inherited from the address type is deprecated." +
" Convert the contract to \"address\" type to access the member." " Convert the contract to \"address\" type to access the member,"
" for example use \"address(contract)." + memberName + "\" instead."
); );
} }