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authorAlex Beregszaszi <alex@rtfs.hu>2018-02-15 20:05:21 +0800
committerGitHub <noreply@github.com>2018-02-15 20:05:21 +0800
commit5746e2d7d867440780ced524dd7e7c29149cf3e2 (patch)
tree02f328d8b013970fde8860f68725cc19eb4820e5
parent834dac79895811cde1e41d8b4de5d4ef6d758303 (diff)
parente08a20607049175e241654efec90371d2693931c (diff)
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Merge pull request #3521 from ethereum/uninitializedStoragePointers
Disallow uninitialized storage pointers as experimental 0.5.0 feature.
-rw-r--r--Changelog.md1
-rw-r--r--libsolidity/analysis/TypeChecker.cpp6
-rw-r--r--test/libsolidity/SolidityNameAndTypeResolution.cpp32
3 files changed, 38 insertions, 1 deletions
diff --git a/Changelog.md b/Changelog.md
index ade9ac86..58604ca2 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,6 +1,7 @@
### 0.4.21 (unreleased)
Features:
+ * Type Checker: Disallow uninitialized storage pointers as experimental 0.5.0 feature.
Bugfixes:
diff --git a/libsolidity/analysis/TypeChecker.cpp b/libsolidity/analysis/TypeChecker.cpp
index d67142e4..f62ddeb9 100644
--- a/libsolidity/analysis/TypeChecker.cpp
+++ b/libsolidity/analysis/TypeChecker.cpp
@@ -972,7 +972,11 @@ bool TypeChecker::visit(VariableDeclarationStatement const& _statement)
string errorText{"Uninitialized storage pointer."};
if (varDecl.referenceLocation() == VariableDeclaration::Location::Default)
errorText += " Did you mean '<type> memory " + varDecl.name() + "'?";
- m_errorReporter.warning(varDecl.location(), errorText);
+ solAssert(m_scope, "");
+ if (m_scope->sourceUnit().annotation().experimentalFeatures.count(ExperimentalFeature::V050))
+ m_errorReporter.declarationError(varDecl.location(), errorText);
+ else
+ m_errorReporter.warning(varDecl.location(), errorText);
}
}
else if (dynamic_cast<MappingType const*>(type(varDecl).get()))
diff --git a/test/libsolidity/SolidityNameAndTypeResolution.cpp b/test/libsolidity/SolidityNameAndTypeResolution.cpp
index 315c7c5f..2b102312 100644
--- a/test/libsolidity/SolidityNameAndTypeResolution.cpp
+++ b/test/libsolidity/SolidityNameAndTypeResolution.cpp
@@ -3021,6 +3021,20 @@ BOOST_AUTO_TEST_CASE(uninitialized_mapping_array_variable)
CHECK_WARNING(sourceCode, "Uninitialized storage pointer");
}
+BOOST_AUTO_TEST_CASE(uninitialized_mapping_array_variable_050)
+{
+ char const* sourceCode = R"(
+ pragma experimental "v0.5.0";
+ contract C {
+ function f() pure public {
+ mapping(uint => uint)[] storage x;
+ x;
+ }
+ }
+ )";
+ CHECK_ERROR(sourceCode, DeclarationError, "Uninitialized storage pointer");
+}
+
BOOST_AUTO_TEST_CASE(no_delete_on_storage_pointers)
{
char const* sourceCode = R"(
@@ -3320,6 +3334,24 @@ BOOST_AUTO_TEST_CASE(non_initialized_references)
CHECK_WARNING(text, "Uninitialized storage pointer");
}
+BOOST_AUTO_TEST_CASE(non_initialized_references_050)
+{
+ char const* text = R"(
+ pragma experimental "v0.5.0";
+ contract c
+ {
+ struct s {
+ uint a;
+ }
+ function f() public {
+ s storage x;
+ }
+ }
+ )";
+
+ CHECK_ERROR(text, DeclarationError, "Uninitialized storage pointer");
+}
+
BOOST_AUTO_TEST_CASE(keccak256_with_large_integer_constant)
{
char const* text = R"(