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Disallow Yul function definitions inside for loop init blocks.

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This commit is contained in:
chriseth
2019-04-25 10:32:00 +02:00
parent 5d93c492fe
commit f26cdea6ca
5 changed files with 55 additions and 1 deletions
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test/libyul/Parser.cpp
+45
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@@ -390,6 +390,17 @@ BOOST_AUTO_TEST_CASE(for_statement_continue_fail_post)
);
}
BOOST_AUTO_TEST_CASE(for_statement_nested_continue)
{
auto dialect = EVMDialect::strictAssemblyForEVMObjects(EVMVersion::constantinople());
CHECK_ERROR_DIALECT(
"{ for {let i := 0} iszero(eq(i, 10)) {} { function f() { continue } } }",
SyntaxError,
"Keyword \"continue\" needs to be inside a for-loop body.",
dialect
);
}
BOOST_AUTO_TEST_CASE(for_statement_continue_nested_init_in_body)
{
auto dialect = EVMDialect::strictAssemblyForEVMObjects(EVMVersion::constantinople());
@@ -425,6 +436,40 @@ BOOST_AUTO_TEST_CASE(for_statement_break_nested_body_in_post)
BOOST_CHECK(successParse("{ for {} 1 {let x for {} x {} { break }} {} }", dialect));
}
BOOST_AUTO_TEST_CASE(function_defined_in_init_block)
{
auto dialect = EVMDialect::strictAssemblyForEVMObjects(EVMVersion{});
BOOST_CHECK(successParse("{ for { } 1 { function f() {} } {} }", dialect));
BOOST_CHECK(successParse("{ for { } 1 {} { function f() {} } }", dialect));
CHECK_ERROR_DIALECT(
"{ for { function f() {} } 1 {} {} }",
SyntaxError,
"Functions cannot be defined inside a for-loop init block.",
dialect
);
}
BOOST_AUTO_TEST_CASE(function_defined_in_init_nested)
{
auto dialect = EVMDialect::strictAssemblyForEVMObjects(EVMVersion{});
BOOST_CHECK(successParse(
"{ for {"
"for { } 1 { function f() {} } {}"
"} 1 {} {} }", dialect));
CHECK_ERROR_DIALECT(
"{ for { for {function foo() {}} 1 {} {} } 1 {} {} }",
SyntaxError,
"Functions cannot be defined inside a for-loop init block.",
dialect
);
CHECK_ERROR_DIALECT(
"{ for {} 1 {for {function foo() {}} 1 {} {} } {} }",
SyntaxError,
"Functions cannot be defined inside a for-loop init block.",
dialect
);
}
BOOST_AUTO_TEST_CASE(if_statement_invalid)
{
CHECK_ERROR("{ if let x:u256 {} }", ParserError, "Literal or identifier expected.");