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Merge pull request #8431 from mijovic/sol2YulSelectorAddress

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Adding sol->yul for f.selector and f.address
This commit is contained in:
Daniel Kirchner 2020-03-06 22:48:38 +01:00 committed by GitHub
commit e58a1de57f
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4 changed files with 44 additions and 3 deletions
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5
libsolidity/ast/Types.cpp
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@ -2924,7 +2924,10 @@ vector<tuple<string, TypePointer>> FunctionType::makeStackItems() const
{
case Kind::External:
case Kind::DelegateCall:
slots = {make_tuple("address", TypeProvider::address()), make_tuple("functionIdentifier", TypeProvider::fixedBytes(4))};
slots = {
make_tuple("address", TypeProvider::address()),
make_tuple("functionIdentifier", TypeProvider::uint(32))
};
break;
case Kind::BareCall:
case Kind::BareCallCode:

12
libsolidity/codegen/ir/IRGeneratorForStatements.cpp
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@ -800,11 +800,19 @@ void IRGeneratorForStatements::endVisit(MemberAccess const& _memberAccess)
case Type::Category::Function:
if (member == "selector")
{
solUnimplementedAssert(false, "");
solUnimplementedAssert(
dynamic_cast<FunctionType const&>(*_memberAccess.expression().annotation().type).kind() ==
FunctionType::Kind::External, ""
);
define(IRVariable{_memberAccess}, IRVariable(_memberAccess.expression()).part("functionIdentifier"));
}
else if (member == "address")
{
solUnimplementedAssert(false, "");
solUnimplementedAssert(
dynamic_cast<FunctionType const&>(*_memberAccess.expression().annotation().type).kind() ==
FunctionType::Kind::External, ""
);
define(IRVariable{_memberAccess}, IRVariable(_memberAccess.expression()).part("address"));
}
else
solAssert(

17
test/libsolidity/semanticTests/viaYul/function_address.sol Normal file
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@ -0,0 +1,17 @@
contract C {
function f() external returns (address) {
return this.f.address;
}
function g() external returns (bool) {
return this.f.address == address(this);
}
function h(function() external a) public returns (address) {
return a.address;
}
}
// ====
// compileViaYul: also
// ----
// f() -> 0x0fdd67305928fcac8d213d1e47bfa6165cd0b87b
// g() -> true
// h(function): left(0x1122334400112233445566778899AABBCCDDEEFF42424242) -> 0x1122334400112233445566778899AABBCCDDEEFF

13
test/libsolidity/semanticTests/viaYul/function_selector.sol Normal file
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@ -0,0 +1,13 @@
contract C {
function f() external returns (bytes4) {
return this.f.selector;
}
function h(function() external a) public returns (bytes4) {
return a.selector;
}
}
// ====
// compileViaYul: also
// ----
// f() -> left(0x26121ff0)
// h(function): left(0x1122334400112233445566778899AABBCCDDEEFF42424242) -> left(0x42424242)