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authorchriseth <chris@ethereum.org>2018-03-06 16:26:14 +0800
committerGitHub <noreply@github.com>2018-03-06 16:26:14 +0800
commitf6c0daec14a047d753c2e501c500995bc7e6dc54 (patch)
treefa9b30b3c5d4f5a318f29d4ad382e57db82c897a /libsolidity/analysis/StaticAnalyzer.cpp
parenta9e02accb96fb1eb39942fa3a68f1904df7ae41d (diff)
parent91b13b734d34e6bb5a76fb53624588d035946237 (diff)
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Merge pull request #3652 from ethereum/gasleft_v2
Use StaticAnalyzer to deprecate msg.gas instead of conditionally remo…
Diffstat (limited to 'libsolidity/analysis/StaticAnalyzer.cpp')
-rw-r--r--libsolidity/analysis/StaticAnalyzer.cpp19
1 files changed, 18 insertions, 1 deletions
diff --git a/libsolidity/analysis/StaticAnalyzer.cpp b/libsolidity/analysis/StaticAnalyzer.cpp
index bd8ee597..d4de219a 100644
--- a/libsolidity/analysis/StaticAnalyzer.cpp
+++ b/libsolidity/analysis/StaticAnalyzer.cpp
@@ -139,6 +139,23 @@ bool StaticAnalyzer::visit(ExpressionStatement const& _statement)
bool StaticAnalyzer::visit(MemberAccess const& _memberAccess)
{
+ bool const v050 = m_currentContract->sourceUnit().annotation().experimentalFeatures.count(ExperimentalFeature::V050);
+
+ if (MagicType const* type = dynamic_cast<MagicType const*>(_memberAccess.expression().annotation().type.get()))
+ if (type->kind() == MagicType::Kind::Message && _memberAccess.memberName() == "gas")
+ {
+ if (v050)
+ m_errorReporter.typeError(
+ _memberAccess.location(),
+ "\"msg.gas\" has been deprecated in favor of \"gasleft()\""
+ );
+ else
+ m_errorReporter.warning(
+ _memberAccess.location(),
+ "\"msg.gas\" has been deprecated in favor of \"gasleft()\""
+ );
+ }
+
if (m_nonPayablePublic && !m_library)
if (MagicType const* type = dynamic_cast<MagicType const*>(_memberAccess.expression().annotation().type.get()))
if (type->kind() == MagicType::Kind::Message && _memberAccess.memberName() == "value")
@@ -151,7 +168,7 @@ bool StaticAnalyzer::visit(MemberAccess const& _memberAccess)
if (auto const* type = dynamic_cast<FunctionType const*>(_memberAccess.annotation().type.get()))
if (type->kind() == FunctionType::Kind::BareCallCode)
{
- if (m_currentContract->sourceUnit().annotation().experimentalFeatures.count(ExperimentalFeature::V050))
+ if (v050)
m_errorReporter.typeError(
_memberAccess.location(),
"\"callcode\" has been deprecated in favour of \"delegatecall\"."