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authorchriseth <c@ethdev.com>2015-11-01 06:13:45 +0800
committerchriseth <c@ethdev.com>2015-11-01 06:13:45 +0800
commita5c227778d7f0145434147830bd07a16f0f72134 (patch)
treee92ab4d3ccd6bfbd7c0b89a9ffde4eb8d88f2251
parent56f5d5885090a03ea9223f2210e70b6c78a1cb75 (diff)
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Bugfix: Returning literal strings in tuples.
-rw-r--r--libsolidity/codegen/Compiler.cpp6
-rw-r--r--libsolidity/codegen/CompilerUtils.cpp2
-rw-r--r--test/libsolidity/SolidityEndToEndTest.cpp20
3 files changed, 26 insertions, 2 deletions
diff --git a/libsolidity/codegen/Compiler.cpp b/libsolidity/codegen/Compiler.cpp
index 457b1e02..5daa37de 100644
--- a/libsolidity/codegen/Compiler.cpp
+++ b/libsolidity/codegen/Compiler.cpp
@@ -606,7 +606,11 @@ bool Compiler::visit(Return const& _return)
for (auto const& retVariable: returnParameters)
types.push_back(retVariable->annotation().type);
- TypePointer expectedType = types.size() == 1 ? types.front() : make_shared<TupleType>(types);
+ TypePointer expectedType;
+ if (expression->annotation().type->category() == Type::Category::Tuple || types.size() != 1)
+ expectedType = make_shared<TupleType>(types);
+ else
+ expectedType = types.front();
compileExpression(*expression, expectedType);
for (auto const& retVariable: boost::adaptors::reverse(returnParameters))
diff --git a/libsolidity/codegen/CompilerUtils.cpp b/libsolidity/codegen/CompilerUtils.cpp
index cd84f5fc..dd38ef97 100644
--- a/libsolidity/codegen/CompilerUtils.cpp
+++ b/libsolidity/codegen/CompilerUtils.cpp
@@ -598,7 +598,7 @@ void CompilerUtils::convertType(Type const& _typeOnStack, Type const& _targetTyp
}
// Value grew
if (targetSize > sourceSize)
- moveIntoStack(depth + targetSize - sourceSize, targetSize - sourceSize);
+ moveIntoStack(depth + targetSize - sourceSize - 1, targetSize - sourceSize);
}
}
depth -= sourceSize;
diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp
index fb7c4013..460396a8 100644
--- a/test/libsolidity/SolidityEndToEndTest.cpp
+++ b/test/libsolidity/SolidityEndToEndTest.cpp
@@ -5682,6 +5682,26 @@ BOOST_AUTO_TEST_CASE(tuples)
BOOST_CHECK(callContractFunction("f()") == encodeArgs(u256(0)));
}
+BOOST_AUTO_TEST_CASE(string_tuples)
+{
+ char const* sourceCode = R"(
+ contract C {
+ function f() returns (string, uint) {
+ return ("abc", 8);
+ }
+ function g() returns (string, string) {
+ return (h(), "def");
+ }
+ function h() returns (string) {
+ return ("abc",);
+ }
+ }
+ )";
+ compileAndRun(sourceCode);
+ BOOST_CHECK(callContractFunction("f()") == encodeArgs(u256(0x40), u256(8), u256(3), string("abc")));
+ BOOST_CHECK(callContractFunction("g()") == encodeArgs(u256(0x40), u256(0x80), u256(3), string("abc"), u256(3), string("def")));
+}
+
BOOST_AUTO_TEST_CASE(destructuring_assignment)
{
char const* sourceCode = R"(