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[ewasm] Add support for hera debugging module.

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This commit is contained in:
Alexander Arlt
2021-01-18 20:06:12 -05:00
parent 957e9995a0
commit 321e971eb3
4 changed files with 75 additions and 54 deletions
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libyul/backends/wasm/WasmCodeTransform.cpp
+25 -18
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@@ -118,28 +118,35 @@ wasm::Expression WasmCodeTransform::operator()(yul::ExpressionStatement const& _
return visitReturnByValue(_statement.expression);
}
void WasmCodeTransform::importBuiltinFunction(BuiltinFunction const* _builtin, string const& _module, string const& _externalName, string const& _internalName)
{
yulAssert(_builtin, "");
yulAssert(_builtin->returns.size() <= 1, "");
// Imported function, use regular call, but mark for import.
YulString internalName(_internalName);
if (!m_functionsToImport.count(internalName))
{
wasm::FunctionImport imp{
_module,
_externalName,
_internalName,
{},
_builtin->returns.empty() ? nullopt : make_optional<wasm::Type>(translatedType(_builtin->returns.front()))
};
for (auto const& param: _builtin->parameters)
imp.paramTypes.emplace_back(translatedType(param));
m_functionsToImport[internalName] = move(imp);
}
}
wasm::Expression WasmCodeTransform::operator()(yul::FunctionCall const& _call)
{
if (BuiltinFunction const* builtin = m_dialect.builtin(_call.functionName.name))
{
if (_call.functionName.name.str().substr(0, 4) == "eth.")
{
yulAssert(builtin->returns.size() <= 1, "");
// Imported function, use regular call, but mark for import.
if (!m_functionsToImport.count(builtin->name))
{
wasm::FunctionImport imp{
"ethereum",
builtin->name.str().substr(4),
builtin->name.str(),
{},
builtin->returns.empty() ? nullopt : make_optional<wasm::Type>(translatedType(builtin->returns.front()))
};
for (auto const& param: builtin->parameters)
imp.paramTypes.emplace_back(translatedType(param));
m_functionsToImport[builtin->name] = std::move(imp);
}
}
if (_call.functionName.name.str().substr(0, 6) == "debug.")
importBuiltinFunction(builtin, "debug", builtin->name.str().substr(6), builtin->name.str());
else if (_call.functionName.name.str().substr(0, 4) == "eth.")
importBuiltinFunction(builtin, "ethereum", builtin->name.str().substr(4), builtin->name.str());
else
{
vector<wasm::Expression> arguments;