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reorganized tests and fixed mobile types and implicit conversions of rationals and fixed point types

Browse Source 
one final tweak

check for null types
This commit is contained in:
VoR0220 2016-05-05 17:47:08 -05:00
parent bfc238c8d1
commit a6fc3c8f30
3 changed files with 377 additions and 295 deletions
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72
libsolidity/analysis/TypeChecker.cpp
View File

@ -774,8 +774,7 @@ bool TypeChecker::visit(VariableDeclarationStatement const& _statement)
solAssert(!var.typeName(), "");
if (
valueComponentType->category() == Type::Category::RationalNumber &&
!dynamic_pointer_cast<RationalNumberType const>(valueComponentType)->integerType() &&
!dynamic_pointer_cast<RationalNumberType const>(valueComponentType)->fixedPointType()
!dynamic_pointer_cast<RationalNumberType const>(valueComponentType)->mobileType()
)
fatalTypeError(_statement.initialValue()->location(), "Invalid rational " + valueComponentType->toString() + ".");
var.annotation().type = valueComponentType->mobileType();
@ -785,14 +784,32 @@ bool TypeChecker::visit(VariableDeclarationStatement const& _statement)
{
var.accept(*this);
if (!valueComponentType->isImplicitlyConvertibleTo(*var.annotation().type))
typeError(
_statement.location(),
"Type " +
valueComponentType->toString() +
" is not implicitly convertible to expected type " +
var.annotation().type->toString() +
"."
);
{
if (
valueComponentType->category() == Type::Category::RationalNumber &&
dynamic_pointer_cast<RationalNumberType const>(valueComponentType)->denominator() != 1 &&
!!valueComponentType->mobileType()
)
typeError(
_statement.location(),
"Type " +
valueComponentType->toString() +
" is not implicitly convertible to expected type " +
var.annotation().type->toString() +
". Try converting to type " +
valueComponentType->mobileType()->toString() +
" or use an explicit conversion."
);
else
typeError(
_statement.location(),
"Type " +
valueComponentType->toString() +
" is not implicitly convertible to expected type " +
var.annotation().type->toString() +
"."
);
}
}
}
return false;
@ -1499,16 +1516,33 @@ Declaration const& TypeChecker::dereference(UserDefinedTypeName const& _typeName
void TypeChecker::expectType(Expression const& _expression, Type const& _expectedType)
{
_expression.accept(*this);
if (!type(_expression)->isImplicitlyConvertibleTo(_expectedType))
typeError(
_expression.location(),
"Type " +
type(_expression)->toString() +
" is not implicitly convertible to expected type " +
_expectedType.toString() +
"."
);
{
if (
type(_expression)->category() == Type::Category::RationalNumber &&
dynamic_pointer_cast<RationalNumberType const>(type(_expression))->denominator() != 1 &&
!!type(_expression)->mobileType()
)
typeError(
_expression.location(),
"Type " +
type(_expression)->toString() +
" is not implicitly convertible to expected type " +
_expectedType.toString() +
". Try converting to type " +
type(_expression)->mobileType()->toString() +
" or using an explicit conversion."
);
else
typeError(
_expression.location(),
"Type " +
type(_expression)->toString() +
" is not implicitly convertible to expected type " +
_expectedType.toString() +
"."
);
}
}
void TypeChecker::requireLValue(Expression const& _expression)

165
libsolidity/ast/Types.cpp
View File

@ -387,18 +387,8 @@ bool FixedPointType::isImplicitlyConvertibleTo(Type const& _convertTo) const
else
return !convertTo.isSigned() || (convertTo.m_integerBits > m_integerBits);
}
else if (_convertTo.category() == Category::Integer)
{
IntegerType const& convertTo = dynamic_cast<IntegerType const&>(_convertTo);
if (convertTo.numBits() < m_integerBits)
return false;
else if (isSigned())
return convertTo.isSigned();
else
return !convertTo.isSigned() || convertTo.numBits() > m_integerBits;
}
else
return false;
return false;
}
bool FixedPointType::isExplicitlyConvertibleTo(Type const& _convertTo) const
@ -459,6 +449,8 @@ TypePointer FixedPointType::binaryOperatorResult(Token::Value _operator, TypePoi
return commonType;
if (Token::isBitOp(_operator) || Token::isBooleanOp(_operator))
return TypePointer();
if (Token::Exp == _operator)
return TypePointer();
return commonType;
}
@ -470,13 +462,12 @@ tuple<bool, rational> RationalNumberType::isValidLiteral(Literal const& _literal
rational numerator;
rational denominator(1);
auto radixPoint = find(_literal.value().begin(), _literal.value().end(), '.');
auto radixPoint = find(_literal.value().begin(), _literal.value().end(), '.');
if (radixPoint != _literal.value().end())
{
if (
!all_of(radixPoint + 1, _literal.value().end(), ::isdigit) ||
!all_of(_literal.value().begin(), radixPoint, ::isdigit)
!all_of(_literal.value().begin(), radixPoint, ::isdigit)
)
throw;
//Only decimal notation allowed here, leading zeros would switch to octal.
@ -485,8 +476,7 @@ tuple<bool, rational> RationalNumberType::isValidLiteral(Literal const& _literal
_literal.value().end(),
[](char const& a) { return a == '0'; }
);
auto fractionalBegin = leadingZeroes != _literal.value().end() ?
leadingZeroes : radixPoint + 1;
auto fractionalBegin = leadingZeroes;
denominator = bigint(string(fractionalBegin, _literal.value().end()));
denominator /= boost::multiprecision::pow(
@ -498,43 +488,44 @@ tuple<bool, rational> RationalNumberType::isValidLiteral(Literal const& _literal
}
else
x = bigint(_literal.value());
switch (_literal.subDenomination())
{
case Literal::SubDenomination::None:
case Literal::SubDenomination::Wei:
case Literal::SubDenomination::Second:
break;
case Literal::SubDenomination::Szabo:
x *= bigint("1000000000000");
break;
case Literal::SubDenomination::Finney:
x *= bigint("1000000000000000");
break;
case Literal::SubDenomination::Ether:
x *= bigint("1000000000000000000");
break;
case Literal::SubDenomination::Minute:
x *= bigint("60");
break;
case Literal::SubDenomination::Hour:
x *= bigint("3600");
break;
case Literal::SubDenomination::Day:
x *= bigint("86400");
break;
case Literal::SubDenomination::Week:
x *= bigint("604800");
break;
case Literal::SubDenomination::Year:
x *= bigint("31536000");
break;
}
}
catch (...)
{
return make_tuple(false, rational(0));
}
switch (_literal.subDenomination())
{
case Literal::SubDenomination::None:
case Literal::SubDenomination::Wei:
case Literal::SubDenomination::Second:
break;
case Literal::SubDenomination::Szabo:
x *= bigint("1000000000000");
break;
case Literal::SubDenomination::Finney:
x *= bigint("1000000000000000");
break;
case Literal::SubDenomination::Ether:
x *= bigint("1000000000000000000");
break;
case Literal::SubDenomination::Minute:
x *= bigint("60");
break;
case Literal::SubDenomination::Hour:
x *= bigint("3600");
break;
case Literal::SubDenomination::Day:
x *= bigint("86400");
break;
case Literal::SubDenomination::Week:
x *= bigint("604800");
break;
case Literal::SubDenomination::Year:
x *= bigint("31536000");
break;
}
return make_tuple(true, x);
}
@ -559,8 +550,14 @@ bool RationalNumberType::isImplicitlyConvertibleTo(Type const& _convertTo) const
}
else if (_convertTo.category() == Category::FixedPoint)
{
if (fixedPointType() && fixedPointType()->isImplicitlyConvertibleTo(_convertTo))
return true;
//call fixed point type...call fractional bits...shift our number by the number of fractional bits...
//...see if it's a whole number. Make helper function for whether or not finitely representable.
if (auto fixed = fixedPointType())
{
rational value = m_value * boost::multiprecision::pow(bigint(2), fixed->fractionalBits());
if (value.denominator() == 1 && fixed->isImplicitlyConvertibleTo(_convertTo))
return true;
}
return false;
}
else if (_convertTo.category() == Category::FixedBytes)
@ -744,7 +741,17 @@ string RationalNumberType::toString(bool) const
u256 RationalNumberType::literalValue(Literal const*) const
{
u256 value;
bigint shiftedValue = integerPart();
bigint shiftedValue;
if (m_value.denominator() != 1)
{
rational temporaryValue = m_value;
auto fixed = fixedPointType();
temporaryValue *= boost::multiprecision::pow(bigint(2), fixed->fractionalBits());
shiftedValue = temporaryValue.numerator() / temporaryValue.denominator();
}
else
shiftedValue = integerPart();
// we ignore the literal and hope that the type was correctly determined
solAssert(shiftedValue <= u256(-1), "Integer constant too large.");
solAssert(shiftedValue >= -(bigint(1) << 255), "Number constant too small.");
@ -772,6 +779,7 @@ TypePointer RationalNumberType::mobileType() const
//TODO: combine integerType() and fixedPointType() into one function
shared_ptr<IntegerType const> RationalNumberType::integerType() const
{
solAssert(m_value.denominator() == 1, "Non integer type found.");
bigint value = integerPart();
bool negative = (value < 0);
if (negative) // convert to positive number of same bit requirements
@ -788,46 +796,43 @@ shared_ptr<IntegerType const> RationalNumberType::integerType() const
shared_ptr<FixedPointType const> RationalNumberType::fixedPointType() const
{
bool negative = (m_value < 0);
bigint fillRationalBits = bigint(1) << 256; //use this because rationals don't have bit ops
unsigned fractionalBits = 0;
unsigned integerBits = 0;
rational value = m_value;
bigint transitionValue = bigint(1) << 256;
rational maxValue = rational(transitionValue);
rational value = abs(m_value); //convert to absolute value of same type for byte requirements
rational maxValue = negative ?
rational(fillRationalBits) / 2:
rational(fillRationalBits) - 1;
if (!negative)
while (value * 0x100 <= maxValue && value.denominator() != 1 && fractionalBits < 256)
{
maxValue -= 1;
integerBits = bytesRequired(integerPart()) * 8;
}
else
{
value = abs(value);
if (integerPart() > 0)
transitionValue = ((0 - integerPart()) - 1) << 1;
else
transitionValue = 0;
integerBits = bytesRequired(transitionValue) * 8;
}
while (value * 0x100 <= maxValue && value.denominator() != 1 && fractionalBits < 256 - integerBits)
{
value *= 0x100;
fractionalBits += 8;
}
if (value > maxValue)
return shared_ptr<FixedPointType const>();
bigint v = value.denominator() / value.numerator();
if (negative)
v = -v;
// u256(v) is the actual value that will be put on the stack
// From here on, very similar to integerType()
//if (negative) // convert to positive number of same bit requirements
// value = ((0 - value) - 1) << 1;
if (value > u256(-1))
bigint v = value.numerator() / value.denominator();
if (negative) //convert back to negative number and then shift into a positive number of equal size
v = (v - 1) << 1;
if (v > u256(-1))
return shared_ptr<FixedPointType const>();
//solAssert(integerBits >= fractionalBits, "Invalid bit requirement calculation.");
//@todo special handling for integerBits == 0 && fractionalBits == 0?
if (0 == integerPart())
integerBits = 0;
else
integerBits = (bytesRequired(v) * 8) - fractionalBits;
if (integerBits > 256 || fractionalBits > 256 || fractionalBits + integerBits > 256)
return shared_ptr<FixedPointType const>();
if (integerBits + fractionalBits == 0)
{
integerBits = 0;
fractionalBits = 8;
}
return make_shared<FixedPointType>(
integerBits, fractionalBits,
negative ? FixedPointType::Modifier::Signed : FixedPointType::Modifier::Unsigned

435
test/libsolidity/SolidityNameAndTypeResolution.cpp
View File

@ -3278,23 +3278,6 @@ BOOST_AUTO_TEST_CASE(invalid_fixed_type_long)
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(valid_fixed_types_casting)
{
char const* text = R"(
contract test {
function f(){
ufixed8x8 a = ufixed8x8(8765.1234);
ufixed16x16 b = a**2;
ufixed24x24 c = b**3;
ufixed32x32 d = b**2;
ufixed40x40 e = a**5;
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(fixed_type_int_conversion)
{
char const* text = R"(
@ -3310,7 +3293,7 @@ BOOST_AUTO_TEST_CASE(fixed_type_int_conversion)
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(fixed_type_rational_conversion)
BOOST_AUTO_TEST_CASE(fixed_type_rational_int_conversion)
{
char const* text = R"(
contract test {
@ -3323,7 +3306,7 @@ BOOST_AUTO_TEST_CASE(fixed_type_rational_conversion)
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(fixed_type_literal)
BOOST_AUTO_TEST_CASE(fixed_type_rational_fraction_conversion)
{
char const* text = R"(
contract test {
@ -3336,17 +3319,214 @@ BOOST_AUTO_TEST_CASE(fixed_type_literal)
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(fixed_type_literal_expression)
BOOST_AUTO_TEST_CASE(invalid_int_implicit_conversion_from_fixed)
{
char const* text = R"(
contract test {
function f() {
ufixed8x248 a = 3.14 * 3;
ufixed8x248 b = 4 - 2.555555;
ufixed0x256 c = 1.0 / 3.0;
ufixed16x240 d = 599 + .5367;
ufixed8x248 e = 35.245 % 12.9;
ufixed8x248 f = 1.2 % 2;
fixed a = 4.5;
int b = a;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(rational_unary_operation)
{
char const* text = R"(
contract test {
function f() {
ufixed8x16 a = +3.25;
fixed8x16 b = -3.25;
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(leading_zero_rationals_convert)
{
char const* text = R"(
contract A {
function f() {
ufixed0x8 a = 0.5;
ufixed0x56 b = 0.0000000000000006661338147750939242541790008544921875;
fixed0x8 c = -0.5;
fixed0x56 d = -0.0000000000000006661338147750939242541790008544921875;
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(size_capabilities_of_fixed_point_types)
{
char const* text = R"(
contract test {
function f() {
ufixed248x8 a = 123456781234567979695948382928485849359686494864095409282048094275023098123.5;
ufixed0x256 b = 0.920890746623327805482905058466021565416131529487595827354393978494366605267637829135688384325135165352082715782143655824815685807141335814463015972119819459298455224338812271036061391763384038070334798471324635050876128428143374549108557403087615966796875;
ufixed0x256 c = 0.0000000000015198847363997979984922685411315294875958273543939784943666052676464653042434787697605517039455161817147718251801220885263595179331845639229818863564267318422845592626219390573301877339317935702714669975697814319204326238832436501979827880859375;
fixed248x8 d = -123456781234567979695948382928485849359686494864095409282048094275023098123.5;
fixed0x256 e = -0.93322335481643744342575580035176794825198893968114429702091846411734101080123092162893656820177312738451291806995868682861328125;
fixed0x256 g = -0.00011788606643744342575580035176794825198893968114429702091846411734101080123092162893656820177312738451291806995868682861328125;
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(fixed_type_invalid_implicit_conversion_size)
{
char const* text = R"(
contract test {
function f() {
ufixed a = 11/4;
ufixed248x8 b = a;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(fixed_type_invalid_implicit_conversion_lost_data)
{
char const* text = R"(
contract test {
function f() {
ufixed0x256 a = 1/3;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(fixed_type_valid_explicit_conversions)
{
char const* text = R"(
contract test {
function f() {
ufixed0x256 a = ufixed0x256(1/3);
ufixed0x248 b = ufixed0x248(1/3);
ufixed0x8 c = ufixed0x8(1/3);
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(invalid_array_declaration_with_rational)
{
char const* text = R"(
contract test {
function f() {
uint[3.5] a;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(invalid_array_declaration_with_fixed_type)
{
char const* text = R"(
contract test {
function f() {
uint[fixed(3.5)] a;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(rational_to_bytes_implicit_conversion)
{
char const* text = R"(
contract test {
function f() {
bytes32 c = 3.2;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(fixed_to_bytes_implicit_conversion)
{
char const* text = R"(
contract test {
function f() {
fixed a = 3.2;
bytes32 c = a;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(mapping_with_fixed_literal)
{
char const* text = R"(
contract test {
mapping(ufixed8x248 => string) fixedString;
function f() {
fixedString[0.5] = "Half";
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(fixed_points_inside_structs)
{
char const* text = R"(
contract test {
struct myStruct {
ufixed a;
int b;
}
myStruct a = myStruct(3.125, 3);
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(inline_array_fixed_types)
{
char const* text = R"(
contract test {
function f() {
fixed[3] memory a = [fixed(3.5), fixed(-4.25), fixed(967.125)];
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(inline_array_rationals)
{
char const* text = R"(
contract test {
function f() {
ufixed8x8[4] memory a = [3.5, 4.125, 2.5, 4.0];
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(rational_to_fixed_literal_expression)
{
char const* text = R"(
contract test {
function f() {
ufixed8x8 a = 3.5 * 3;
ufixed8x8 b = 4 - 2.5;
ufixed8x8 c = 11 / 4;
ufixed16x240 d = 599 + 0.21875;
ufixed8x248 e = ufixed8x248(35.245 % 12.9);
ufixed8x248 f = ufixed8x248(1.2 % 2);
fixed g = 2 ** -2;
}
}
@ -3360,147 +3540,9 @@ BOOST_AUTO_TEST_CASE(rational_as_exponent_value)
contract test {
function f() {
fixed g = 2 ** -2.2;
fixed b = 3 ** 2.56;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(fixed_type_invalid_size_conversion)
{
char const* text = R"(
contract test {
function f() {
fixed a = 1/3;
ufixed248x8 b = a + 2.5;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(fixed_type_valid_size_conversion)
{
char const* text = R"(
contract test {
function f() {
fixed a = 1/3;
ufixed248x8 b = ufixed248x8(a) + 2.5;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(uint_array_declaration_with_fixed_type)
{
char const* text = R"(
contract test {
function f() {
uint[fixed(3.56)] a;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(array_declaration_with_fixed_literal)
{
char const* text = R"(
contract test {
function f() {
uint[3.56] a;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(mapping_with_fixed_literal)
{
char const* text = R"(
contract test {
mapping(ufixed8x248 => string) fixedString;
function f() {
fixedString[3.14] = "Pi";
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(inline_array_fixed_type)
{
char const* text = R"(
contract test {
function f() {
fixed[3] memory a = [fixed(3.5), fixed(4.1234), fixed(967.32)];
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(inline_array_fixed_rationals)
{
char const* text = R"(
contract test {
function f() {
ufixed8x248[4] memory a = [3.5, 4.1234, 2.5, 4.0];
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(zero_and_eight_variant_fixed)
{
char const* text = R"(
contract A {
ufixed0x8 half = 0.5;
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(size_capabilities_of_fixed_point_types)
{
char const* text = R"(
contract test {
function f() {
ufixed0x256 a = 0.12345678;
ufixed24x8 b = 12345678.5;
ufixed0x256 c = 0.00000009;
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(var_capable_of_holding_constant_rationals)
{
char const* text = R"(
contract test {
function f() {
var a = 0.12345678;
var b = 12345678.0;
var c = 0.00000009;
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(invalid_rational_exponent_usage)
{
char const* text = R"(
contract test {
function f() {
fixed8x8 a = 3 ** 1.5;
fixed24x24 b = 2 ** (1/2);
ufixed b = 3 ** 2.5;
ufixed24x24 b = 2 ** (1/2);
fixed40x40 c = 42 ** (-1/4);
fixed48x48 d = 16 ** -0.33;
}
}
)";
@ -3512,54 +3554,42 @@ BOOST_AUTO_TEST_CASE(fixed_point_casting_exponents)
char const* text = R"(
contract test {
function f() {
fixed a = 3 ** fixed(1.5);
fixed b = 2 ** fixed(1/2);
ufixed a = 3 ** ufixed(1.5);
ufixed b = 2 ** ufixed(1/2);
fixed c = 42 ** fixed(-1/4);
fixed d = 16 ** fixed(-0.33);
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(rational_to_bytes_implicit_conversion)
{
char const* text = R"(
contract test {
function f() {
bytes32 c = 3.183;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(fixed_to_bytes_implicit_conversion)
BOOST_AUTO_TEST_CASE(var_capable_of_holding_constant_rationals)
{
char const* text = R"(
contract test {
function f() {
fixed a = 3.183;
bytes32 c = a;
}
}
)";
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(rational_unary_operation)
{
char const* text = R"(
contract test {
function f() {
ufixed8x248 a = +3.5134;
fixed8x248 b = -3.5134;
var a = 0.12345678;
var b = 12345678.352;
var c = 0.00000009;
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(var_handle_divided_integers)
{
char const* text = R"(
contract test {
function f() {
var x = 1/3;
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_CASE(rational_bitnot_unary_operation)
{
char const* text = R"(
@ -3608,6 +3638,19 @@ BOOST_AUTO_TEST_CASE(rational_bitand_binary_operation)
BOOST_CHECK(!success(text));
}
BOOST_AUTO_TEST_CASE(zero_handling)
{
char const* text = R"(
contract test {
function f() {
fixed8x8 a = 0;
ufixed8x8 b = 0;
}
}
)";
BOOST_CHECK(success(text));
}
BOOST_AUTO_TEST_SUITE_END()
}