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Ignore unimplemented functions for storage returns.

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This commit is contained in:
Daniel Kirchner 2018-11-13 12:12:08 +01:00
parent 4eaed37b96
commit b5e9d849ef
4 changed files with 14 additions and 2 deletions
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1
Changelog.md
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@ -111,6 +111,7 @@ Bugfixes:
* Code Generator: Properly handle negative number literals in ABIEncoderV2.
* Code Generator: Do not crash on using a length of zero for multidimensional fixed-size arrays.
* Commandline Interface: Correctly handle paths with backslashes on windows.
* Control Flow Analyzer: Ignore unimplemented functions when detecting uninitialized storage pointer returns.
* Fix NatSpec json output for `@notice` and `@dev` tags on contract definitions.
* Optimizer: Correctly estimate gas costs of constants for special cases.
* Optimizer: Fix simplification rule initialization bug that appeared on some emscripten platforms.

3
libsolidity/analysis/ControlFlowAnalyzer.cpp
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@ -27,9 +27,12 @@ bool ControlFlowAnalyzer::analyze(ASTNode const& _astRoot)
}
bool ControlFlowAnalyzer::visit(FunctionDefinition const& _function)
{
if (_function.isImplemented())
{
auto const& functionFlow = m_cfg.functionFlow(_function);
checkUnassignedStorageReturnValues(_function, functionFlow.entry, functionFlow.exit);
}
return false;
}

4
test/libsolidity/syntaxTests/controlFlow/storageReturn/unimplemented_internal.sol Normal file
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@ -0,0 +1,4 @@
contract C {
function f() internal returns(uint[] storage);
function g() internal returns(uint[] storage s);
}

4
test/libsolidity/syntaxTests/controlFlow/storageReturn/unimplemented_library.sol Normal file
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@ -0,0 +1,4 @@
library L {
function f() public returns(uint[] storage);
function g() public returns(uint[] storage s);
}