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User-defined literal suffixes: Code generation

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chriseth
2023-04-12 12:07:46 +02:00
committed by Kamil Śliwak
parent 3cbbfc890f
commit 9e708a98fd
2 changed files with 99 additions and 10 deletions
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libsolidity/codegen/ir/IRGeneratorForStatements.cpp
+59 -7
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@@ -997,16 +997,64 @@ void IRGeneratorForStatements::endVisit(FunctionCall const& _functionCall)
break;
case FunctionType::Kind::Internal:
{
FunctionDefinition const* functionDef = ASTNode::resolveFunctionCall(_functionCall, &m_context.mostDerivedContract());
solAssert(functionType);
solAssert(!functionType->takesArbitraryParameters());
vector<string> args;
if (functionType->hasBoundFirstArgument())
args += IRVariable(_functionCall.expression()).part("self").stackSlots();
FunctionDefinition const* functionDef = nullptr;
for (size_t i = 0; i < arguments.size(); ++i)
args += convert(*arguments[i], *parameterTypes[i]).stackSlots();
if (!_functionCall.isSuffixCall())
{
functionDef = ASTNode::resolveFunctionCall(_functionCall, &m_context.mostDerivedContract());
if (functionType->hasBoundFirstArgument())
args += IRVariable(_functionCall.expression()).part("self").stackSlots();
for (size_t i = 0; i < arguments.size(); ++i)
args += convert(*arguments[i], *parameterTypes[i]).stackSlots();
}
else
{
functionDef = dynamic_cast<FunctionDefinition const*>(&functionType->declaration());
solAssert(functionDef);
solAssert(!functionDef->virtualSemantics());
solAssert(!functionType->hasBoundFirstArgument());
solAssert(arguments.size() == 1);
solAssert(arguments[0]);
auto const* literal = dynamic_cast<Literal const*>(arguments[0].get());
Type const& literalType = *literal->annotation().type;
solAssert(literal);
solAssert(literal->annotation().type);
if (parameterTypes.size() == 2)
{
auto const* literalRationalType = dynamic_cast<RationalNumberType const*>(&literalType);
solAssert(literalRationalType);
auto&& [mantissa, exponent] = literalRationalType->fractionalDecomposition();
solAssert(mantissa && exponent);
IRVariable mantissaVar(m_context.newYulVariable(), *mantissa);
define(mantissaVar) << toCompactHexWithPrefix(mantissa->literalValue(literal)) << "\n";
args += convert(mantissaVar, *parameterTypes[0]).stackSlots();
IRVariable exponentVar(m_context.newYulVariable(), *exponent);
define(exponentVar) << toCompactHexWithPrefix(exponent->literalValue(literal)) << "\n";
args += convert(exponentVar, *parameterTypes[1]).stackSlots();
}
else
{
solAssert(parameterTypes.size() == 1);
IRVariable value(m_context.newYulVariable(), literalType);
if (literalType.category() != Type::Category::StringLiteral)
// NOTE: For string literals we do not need to define the variable. The variable
// value will be embedded inside the conversion function.
define(value) << toCompactHexWithPrefix(literalType.literalValue(literal)) << "\n";
args += convert(value, *parameterTypes[0]).stackSlots();
}
}
if (functionDef)
{
@@ -2500,10 +2548,14 @@ bool IRGeneratorForStatements::visit(Literal const& _literal)
define(_literal) << toCompactHexWithPrefix(literalType.literalValue(&_literal)) << "\n";
break;
case Type::Category::StringLiteral:
break; // will be done during conversion
// A string literal cannot be simply assigned to a Yul variable so we don't create one here.
// Instead any expression that uses it has to generate custom conversion code that
// depends on where the string ultimately ends up (storage, memory, ABI encoded data, etc.).
break;
default:
solUnimplemented("Only integer, boolean and string literals implemented for now.");
}
return false;
}