diff options
| -rw-r--r-- | Changelog.md | 1 | ||||
| -rw-r--r-- | libsolidity/ast/Types.cpp | 19 | ||||
| -rw-r--r-- | test/libsolidity/syntaxTests/types/rational_number_exp_limit_fail.sol (renamed from test/libsolidity/syntaxTests/types/rational_number_exp_limit.sol) | 43 | ||||
| -rw-r--r-- | test/libsolidity/syntaxTests/types/rational_number_exp_limit_fine.sol | 9 |
4 files changed, 41 insertions, 31 deletions
diff --git a/Changelog.md b/Changelog.md index 4f37db1f..fbdf9206 100644 --- a/Changelog.md +++ b/Changelog.md @@ -59,6 +59,7 @@ Compiler Features: Bugfixes: * Tests: Fix chain parameters to make ipc tests work with newer versions of cpp-ethereum. * Code Generator: Fix allocation of byte arrays (zeroed out too much memory). + * Type System: Allow arbitrary exponents for literals with a mantissa of zero. ### 0.4.24 (2018-05-16) diff --git a/libsolidity/ast/Types.cpp b/libsolidity/ast/Types.cpp index 0a4f199d..dd0736e9 100644 --- a/libsolidity/ast/Types.cpp +++ b/libsolidity/ast/Types.cpp @@ -771,20 +771,23 @@ tuple<bool, rational> RationalNumberType::isValidLiteral(Literal const& _literal } else if (expPoint != _literal.value().end()) { - // Parse base and exponent. Checks numeric limit. - bigint exp = bigint(string(expPoint + 1, _literal.value().end())); + // Parse mantissa and exponent. Checks numeric limit. + tuple<bool, rational> mantissa = parseRational(string(_literal.value().begin(), expPoint)); - if (exp > numeric_limits<int32_t>::max() || exp < numeric_limits<int32_t>::min()) + if (!get<0>(mantissa)) return make_tuple(false, rational(0)); + value = get<1>(mantissa); - uint32_t expAbs = bigint(abs(exp)).convert_to<uint32_t>(); - + // 0E... is always zero. + if (value == 0) + return make_tuple(true, rational(0)); - tuple<bool, rational> base = parseRational(string(_literal.value().begin(), expPoint)); + bigint exp = bigint(string(expPoint + 1, _literal.value().end())); - if (!get<0>(base)) + if (exp > numeric_limits<int32_t>::max() || exp < numeric_limits<int32_t>::min()) return make_tuple(false, rational(0)); - value = get<1>(base); + + uint32_t expAbs = bigint(abs(exp)).convert_to<uint32_t>(); if (exp < 0) { diff --git a/test/libsolidity/syntaxTests/types/rational_number_exp_limit.sol b/test/libsolidity/syntaxTests/types/rational_number_exp_limit_fail.sol index 6785f580..058db2e9 100644 --- a/test/libsolidity/syntaxTests/types/rational_number_exp_limit.sol +++ b/test/libsolidity/syntaxTests/types/rational_number_exp_limit_fail.sol @@ -4,9 +4,6 @@ contract c { a = 4 ** 4 ** 2 ** 4 ** 4 ** 4 ** 4; a = -4 ** 4 ** 2 ** 4 ** 4 ** 4 ** 4 ** 4; a = 4 ** (-(2 ** 4 ** 4 ** 4 ** 4 ** 4)); - a = 0 ** 1E1233; // fine - a = 1 ** 1E1233; // fine - a = -1 ** 1E1233; // fine a = 2 ** 1E1233; a = -2 ** 1E1233; a = 2 ** -1E1233; @@ -28,23 +25,23 @@ contract c { // TypeError: (116-153): Operator ** not compatible with types int_const 1797...(301 digits omitted)...7216 and int_const 4 // TypeError: (116-153): Type int_const 1797...(301 digits omitted)...7216 is not implicitly convertible to expected type int256. // TypeError: (167-203): Operator ** not compatible with types int_const 4 and int_const -179...(302 digits omitted)...7216 -// TypeError: (317-328): Operator ** not compatible with types int_const 2 and int_const 1000...(1226 digits omitted)...0000 -// TypeError: (342-354): Operator ** not compatible with types int_const -2 and int_const 1000...(1226 digits omitted)...0000 -// TypeError: (368-380): Operator ** not compatible with types int_const 2 and int_const -100...(1227 digits omitted)...0000 -// TypeError: (394-407): Operator ** not compatible with types int_const -2 and int_const -100...(1227 digits omitted)...0000 -// TypeError: (421-432): Operator ** not compatible with types int_const 1000...(1226 digits omitted)...0000 and int_const 2 -// TypeError: (421-432): Type int_const 1000...(1226 digits omitted)...0000 is not implicitly convertible to expected type int256. -// TypeError: (446-458): Operator ** not compatible with types int_const -100...(1227 digits omitted)...0000 and int_const 2 -// TypeError: (446-458): Type int_const -100...(1227 digits omitted)...0000 is not implicitly convertible to expected type int256. -// TypeError: (472-484): Operator ** not compatible with types int_const 1000...(1226 digits omitted)...0000 and int_const -2 -// TypeError: (472-484): Type int_const 1000...(1226 digits omitted)...0000 is not implicitly convertible to expected type int256. -// TypeError: (498-511): Operator ** not compatible with types int_const -100...(1227 digits omitted)...0000 and int_const -2 -// TypeError: (498-511): Type int_const -100...(1227 digits omitted)...0000 is not implicitly convertible to expected type int256. -// TypeError: (525-541): Operator ** not compatible with types int_const 1000...(1226 digits omitted)...0000 and int_const 1000...(1226 digits omitted)...0000 -// TypeError: (525-541): Type int_const 1000...(1226 digits omitted)...0000 is not implicitly convertible to expected type int256. -// TypeError: (555-572): Operator ** not compatible with types int_const 1000...(1226 digits omitted)...0000 and int_const -100...(1227 digits omitted)...0000 -// TypeError: (555-572): Type int_const 1000...(1226 digits omitted)...0000 is not implicitly convertible to expected type int256. -// TypeError: (586-603): Operator ** not compatible with types int_const -100...(1227 digits omitted)...0000 and int_const 1000...(1226 digits omitted)...0000 -// TypeError: (586-603): Type int_const -100...(1227 digits omitted)...0000 is not implicitly convertible to expected type int256. -// TypeError: (617-635): Operator ** not compatible with types int_const -100...(1227 digits omitted)...0000 and int_const -100...(1227 digits omitted)...0000 -// TypeError: (617-635): Type int_const -100...(1227 digits omitted)...0000 is not implicitly convertible to expected type int256. +// TypeError: (217-228): Operator ** not compatible with types int_const 2 and int_const 1000...(1226 digits omitted)...0000 +// TypeError: (242-254): Operator ** not compatible with types int_const -2 and int_const 1000...(1226 digits omitted)...0000 +// TypeError: (268-280): Operator ** not compatible with types int_const 2 and int_const -100...(1227 digits omitted)...0000 +// TypeError: (294-307): Operator ** not compatible with types int_const -2 and int_const -100...(1227 digits omitted)...0000 +// TypeError: (321-332): Operator ** not compatible with types int_const 1000...(1226 digits omitted)...0000 and int_const 2 +// TypeError: (321-332): Type int_const 1000...(1226 digits omitted)...0000 is not implicitly convertible to expected type int256. +// TypeError: (346-358): Operator ** not compatible with types int_const -100...(1227 digits omitted)...0000 and int_const 2 +// TypeError: (346-358): Type int_const -100...(1227 digits omitted)...0000 is not implicitly convertible to expected type int256. +// TypeError: (372-384): Operator ** not compatible with types int_const 1000...(1226 digits omitted)...0000 and int_const -2 +// TypeError: (372-384): Type int_const 1000...(1226 digits omitted)...0000 is not implicitly convertible to expected type int256. +// TypeError: (398-411): Operator ** not compatible with types int_const -100...(1227 digits omitted)...0000 and int_const -2 +// TypeError: (398-411): Type int_const -100...(1227 digits omitted)...0000 is not implicitly convertible to expected type int256. +// TypeError: (425-441): Operator ** not compatible with types int_const 1000...(1226 digits omitted)...0000 and int_const 1000...(1226 digits omitted)...0000 +// TypeError: (425-441): Type int_const 1000...(1226 digits omitted)...0000 is not implicitly convertible to expected type int256. +// TypeError: (455-472): Operator ** not compatible with types int_const 1000...(1226 digits omitted)...0000 and int_const -100...(1227 digits omitted)...0000 +// TypeError: (455-472): Type int_const 1000...(1226 digits omitted)...0000 is not implicitly convertible to expected type int256. +// TypeError: (486-503): Operator ** not compatible with types int_const -100...(1227 digits omitted)...0000 and int_const 1000...(1226 digits omitted)...0000 +// TypeError: (486-503): Type int_const -100...(1227 digits omitted)...0000 is not implicitly convertible to expected type int256. +// TypeError: (517-535): Operator ** not compatible with types int_const -100...(1227 digits omitted)...0000 and int_const -100...(1227 digits omitted)...0000 +// TypeError: (517-535): Type int_const -100...(1227 digits omitted)...0000 is not implicitly convertible to expected type int256. diff --git a/test/libsolidity/syntaxTests/types/rational_number_exp_limit_fine.sol b/test/libsolidity/syntaxTests/types/rational_number_exp_limit_fine.sol new file mode 100644 index 00000000..66d02eb9 --- /dev/null +++ b/test/libsolidity/syntaxTests/types/rational_number_exp_limit_fine.sol @@ -0,0 +1,9 @@ +contract c { + function f() public pure { + int a; + a = 0 ** 1E1233; + a = 1 ** 1E1233; + a = -1 ** 1E1233; + a = 0E123456789; + } +} |