Merge pull request #12186 from ethereum/fix-userdefined-ice

Moved storage size assert to TypeChecker from DeclarationTypeChecker
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chriseth 2021-10-27 16:12:16 +02:00 committed by GitHub
commit 9be882c90d
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19 changed files with 59 additions and 23 deletions

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@ -23,6 +23,8 @@ Bugfixes:
* Commandline Interface: When linking only accept exact matches for library names passed to the ``--libraries`` option. Library names not prefixed with a file name used to match any library with that name.
* SMTChecker: Fix internal error in magic type access (``block``, ``msg``, ``tx``).
* TypeChecker: Fix internal error when using user defined value types in public library functions.
* TypeChecker: Fix internal error when using arrays and structs with user defined value types before declaration.
* TypeChecker: Improved error message for constant variables with (nested) mapping types.
* Yul Assembler: Fix internal error when function names are not unique.
* Yul IR Generator: Do not output empty switches/if-bodies for empty contracts.

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@ -100,7 +100,6 @@ bool DeclarationTypeChecker::visit(StructDefinition const& _struct)
m_recursiveStructSeen = false;
member->accept(*this);
solAssert(member->annotation().type, "");
solAssert(member->annotation().type->canBeStored(), "Type cannot be used in struct.");
if (m_recursiveStructSeen)
hasRecursiveChild = true;
}
@ -289,7 +288,6 @@ void DeclarationTypeChecker::endVisit(ArrayTypeName const& _typeName)
return;
}
solAssert(baseType->storageBytes() != 0, "Illegal base type of storage size zero for array.");
if (Expression const* length = _typeName.length())
{
optional<rational> lengthValue;
@ -439,14 +437,16 @@ void DeclarationTypeChecker::endVisit(VariableDeclaration const& _variable)
type = TypeProvider::withLocation(ref, typeLoc, isPointer);
}
if (_variable.isConstant() && !type->isValueType())
{
bool allowed = false;
if (auto arrayType = dynamic_cast<ArrayType const*>(type))
allowed = arrayType->isByteArray();
if (!allowed)
m_errorReporter.fatalDeclarationError(9259_error, _variable.location(), "Constants of non-value type not yet implemented.");
}
if (
_variable.isConstant() &&
!dynamic_cast<UserDefinedValueType const*>(type) &&
type->containsNestedMapping()
)
m_errorReporter.fatalDeclarationError(
3530_error,
_variable.location(),
"The type contains a (nested) mapping and therefore cannot be a constant."
);
_variable.annotation().type = type;
}

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@ -530,6 +530,15 @@ bool TypeChecker::visit(VariableDeclaration const& _variable)
}
if (_variable.isConstant())
{
if (!varType->isValueType())
{
bool allowed = false;
if (auto arrayType = dynamic_cast<ArrayType const*>(varType))
allowed = arrayType->isByteArray();
if (!allowed)
m_errorReporter.fatalTypeError(9259_error, _variable.location(), "Constants of non-value type not yet implemented.");
}
if (!_variable.value())
m_errorReporter.typeError(4266_error, _variable.location(), "Uninitialized \"constant\" variable.");
else if (!*_variable.value()->annotation().isPure)
@ -621,6 +630,16 @@ bool TypeChecker::visit(VariableDeclaration const& _variable)
return false;
}
void TypeChecker::endVisit(StructDefinition const& _struct)
{
for (auto const& member: _struct.members())
solAssert(
member->annotation().type &&
member->annotation().type->canBeStored(),
"Type cannot be used in struct."
);
}
void TypeChecker::visitManually(
ModifierInvocation const& _modifier,
vector<ContractDefinition const*> const& _bases
@ -1220,6 +1239,14 @@ void TypeChecker::endVisit(RevertStatement const& _revert)
m_errorReporter.typeError(1885_error, errorCall.expression().location(), "Expression has to be an error.");
}
void TypeChecker::endVisit(ArrayTypeName const& _typeName)
{
solAssert(
_typeName.baseType().annotation().type &&
_typeName.baseType().annotation().type->storageBytes() != 0,
"Illegal base type of storage size zero for array."
);
}
bool TypeChecker::visit(VariableDeclarationStatement const& _statement)
{

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@ -119,7 +119,9 @@ private:
void endVisit(InheritanceSpecifier const& _inheritance) override;
void endVisit(ModifierDefinition const& _modifier) override;
bool visit(FunctionDefinition const& _function) override;
void endVisit(ArrayTypeName const& _typeName) override;
bool visit(VariableDeclaration const& _variable) override;
void endVisit(StructDefinition const& _struct) override;
/// We need to do this manually because we want to pass the bases of the current contract in
/// case this is a base constructor call.
void visitManually(ModifierInvocation const& _modifier, std::vector<ContractDefinition const*> const& _bases);

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@ -1124,6 +1124,8 @@ public:
bool containsNestedMapping() const override
{
solAssert(nameable(), "Called for a non nameable type.");
// DeclarationTypeChecker::endVisit(VariableDeclaration const&)
// assumes that this will never be true.
solAssert(!underlyingType().containsNestedMapping(), "");
return false;
}

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@ -1,4 +1,3 @@
int[L] constant L = 6;
// ----
// TypeError 5462: (4-5): Invalid array length, expected integer literal or constant expression.
// DeclarationError 9259: (0-21): Constants of non-value type not yet implemented.

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@ -3,4 +3,3 @@ contract C {
}
// ----
// TypeError 5462: (21-22): Invalid array length, expected integer literal or constant expression.
// DeclarationError 9259: (17-38): Constants of non-value type not yet implemented.

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@ -1,3 +1,3 @@
mapping(uint => uint) constant b = b;
// ----
// DeclarationError 9259: (0-36): Constants of non-value type not yet implemented.
// DeclarationError 3530: (0-36): The type contains a (nested) mapping and therefore cannot be a constant.

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@ -1,4 +1,4 @@
struct S { uint x; }
S constant s;
// ----
// DeclarationError 9259: (21-33): Constants of non-value type not yet implemented.
// TypeError 9259: (21-33): Constants of non-value type not yet implemented.

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@ -5,4 +5,4 @@ contract C {
S public constant e = 0x1212121212121212121212121212121212121212;
}
// ----
// DeclarationError 9259: (71-135): Constants of non-value type not yet implemented.
// DeclarationError 3530: (71-135): The type contains a (nested) mapping and therefore cannot be a constant.

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@ -3,4 +3,3 @@ contract test {
}
// ----
// DeclarationError 1788: (31-55): The "constant" keyword can only be used for state variables or variables at file level.
// DeclarationError 9259: (31-55): Constants of non-value type not yet implemented.

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@ -2,4 +2,4 @@ contract C {
uint[3] constant x = [uint(1), 2, 3];
}
// ----
// DeclarationError 9259: (17-53): Constants of non-value type not yet implemented.
// TypeError 9259: (17-53): Constants of non-value type not yet implemented.

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@ -3,4 +3,4 @@ contract C {
S constant x = S(5, new uint[](4));
}
// ----
// DeclarationError 9259: (52-86): Constants of non-value type not yet implemented.
// TypeError 9259: (52-86): Constants of non-value type not yet implemented.

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@ -1,7 +1,5 @@
contract C {
// This should probably have a better error message at some point.
// Constant mappings should not be possible in general.
mapping(uint => uint) constant x;
}
// ----
// DeclarationError 9259: (148-180): Constants of non-value type not yet implemented.
// DeclarationError 3530: (17-49): The type contains a (nested) mapping and therefore cannot be a constant.

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@ -5,4 +5,4 @@ contract C {
S public constant c;
}
// ----
// DeclarationError 9259: (71-90): Constants of non-value type not yet implemented.
// DeclarationError 3530: (71-90): The type contains a (nested) mapping and therefore cannot be a constant.

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@ -3,4 +3,3 @@ contract Foo {
}
// ----
// DeclarationError 1788: (30-55): The "constant" keyword can only be used for state variables or variables at file level.
// DeclarationError 9259: (30-55): Constants of non-value type not yet implemented.

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@ -0,0 +1,4 @@
contract C {
Left[] pu1;
}
type Left is bytes2;

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@ -0,0 +1,2 @@
MyInt constant x = MyInt.wrap(20);
type MyInt is int;

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@ -0,0 +1,3 @@
struct S { U u; }
contract C { S s; }
type U is address;