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Implement word size transform for if.

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This commit is contained in:
chriseth
2019-05-09 16:55:39 +02:00
parent c3a1c168d0
commit eaee4412da
4 changed files with 26 additions and 11 deletions
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libyul/backends/wasm/WordSizeTransform.cpp
+16 -8
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@@ -44,9 +44,14 @@ void WordSizeTransform::operator()(FunctionCall& _fc)
rewriteFunctionCallArguments(_fc.arguments);
}
void WordSizeTransform::operator()(If&)
void WordSizeTransform::operator()(If& _if)
{
yulAssert(false, "If statement not implemented.");
_if.condition = make_unique<Expression>(FunctionCall{
locationOf(*_if.condition),
Identifier{locationOf(*_if.condition), "or_bool"_yulstring}, // TODO make sure this is not used
expandValueToVector(*_if.condition)
});
(*this)(_if.body);
}
void WordSizeTransform::operator()(Switch&)
@@ -181,12 +186,7 @@ void WordSizeTransform::rewriteFunctionCallArguments(vector<Expression>& _args)
_args,
[&](Expression& _e) -> boost::optional<vector<Expression>>
{
// ExpressionSplitter guarantees arguments to be Identifier or Literal
yulAssert(_e.type() == typeid(Identifier) || _e.type() == typeid(Literal), "");
vector<Expression> ret;
for (auto& v: expandValue(_e))
ret.push_back(*v);
return ret;
return expandValueToVector(_e);
}
);
}
@@ -236,3 +236,11 @@ array<unique_ptr<Expression>, 4> WordSizeTransform::expandValue(Expression const
return ret;
}
vector<Expression> WordSizeTransform::expandValueToVector(Expression const& _e)
{
vector<Expression> ret;
for (unique_ptr<Expression>& val: expandValue(_e))
ret.emplace_back(std::move(*val));
return ret;
}