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Crash fix, parseTypeName can return null.

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This commit is contained in:
chriseth 2017-08-28 14:50:18 +02:00
parent d15cde2aa8
commit 122e65f8f4
3 changed files with 18 additions and 1 deletions
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2
Changelog.md
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@ -5,6 +5,8 @@ Features:
* Type Checker: Warn on using literals as tight packing parameters in ``keccak256``, ``sha3``, ``sha256`` and ``ripemd160``. * Type Checker: Warn on using literals as tight packing parameters in ``keccak256``, ``sha3``, ``sha256`` and ``ripemd160``.
Bugfixes: Bugfixes:
* Parser: Crash fix related to parseTypeName.
### 0.4.16 (2017-08-24) ### 0.4.16 (2017-08-24)

5
libsolidity/parsing/Parser.cpp
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@ -1244,7 +1244,10 @@ ASTPointer<Expression> Parser::parseLeftHandSideExpression(
{ {
expectToken(Token::New); expectToken(Token::New);
ASTPointer<TypeName> typeName(parseTypeName(false)); ASTPointer<TypeName> typeName(parseTypeName(false));
nodeFactory.setEndPositionFromNode(typeName); if (typeName)
nodeFactory.setEndPositionFromNode(typeName);
else
nodeFactory.markEndPosition();
expression = nodeFactory.createNode<NewExpression>(typeName); expression = nodeFactory.createNode<NewExpression>(typeName);
} }
else else

12
test/libsolidity/SolidityParser.cpp
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@ -1602,6 +1602,18 @@ BOOST_AUTO_TEST_CASE(interface)
BOOST_CHECK(successParse(text)); BOOST_CHECK(successParse(text));
} }
BOOST_AUTO_TEST_CASE(newInvalidTypeName)
{
char const* text = R"(
contract C {
function f() {
new var;
}
}
)";
CHECK_PARSE_ERROR(text, "Expected explicit type name");
}
BOOST_AUTO_TEST_SUITE_END() BOOST_AUTO_TEST_SUITE_END()
} }