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Refactoring of errors and fixes for various ICEs.

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This commit is contained in:
Daniel Kirchner 2020-04-14 19:03:46 +02:00
parent df1809f8da
commit b744a56801
16 changed files with 127 additions and 38 deletions
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19
libsolidity/analysis/TypeChecker.cpp
View File

@ -518,19 +518,14 @@ bool TypeChecker::visit(VariableDeclaration const& _variable)
m_errorReporter.typeError(_variable.location(), "Internal or recursive type is not allowed for public state variables.");
}
switch (varType->category())
if (auto referenceType = dynamic_cast<ReferenceType const*>(varType))
{
case Type::Category::Array:
if (auto arrayType = dynamic_cast<ArrayType const*>(varType))
if (
((arrayType->location() == DataLocation::Memory) ||
(arrayType->location() == DataLocation::CallData)) &&
!arrayType->validForCalldata()
)
m_errorReporter.typeError(_variable.location(), "Array is too large to be encoded.");
break;
default:
break;
auto result = referenceType->validForLocation(referenceType->location());
if (!result)
{
solAssert(!result.message().empty(), "Expected detailed error message");
m_errorReporter.typeError(_variable.location(), result.message());
}
}
return false;

20
libsolidity/ast/AST.cpp
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@ -617,12 +617,20 @@ set<VariableDeclaration::Location> VariableDeclaration::allowedDataLocations() c
else if (isLocalVariable())
{
solAssert(typeName(), "");
solAssert(typeName()->annotation().type, "Can only be called after reference resolution");
if (typeName()->annotation().type->category() == Type::Category::Mapping)
return set<Location>{ Location::Storage };
else
// TODO: add Location::Calldata once implemented for local variables.
return set<Location>{ Location::Memory, Location::Storage };
auto getDataLocations = [](TypePointer _type, auto&& _recursion) -> set<Location> {
solAssert(_type, "Can only be called after reference resolution");
switch (_type->category())
{
case Type::Category::Array:
return _recursion(dynamic_cast<ArrayType const*>(_type)->baseType(), _recursion);
case Type::Category::Mapping:
return set<Location>{ Location::Storage };
default:
// TODO: add Location::Calldata once implemented for local variables.
return set<Location>{ Location::Memory, Location::Storage };
}
};
return getDataLocations(typeName()->annotation().type, getDataLocations);
}
else
// Struct members etc.

43
libsolidity/ast/Types.cpp
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@ -1649,12 +1649,35 @@ bool ArrayType::operator==(Type const& _other) const
return isDynamicallySized() || length() == other.length();
}
bool ArrayType::validForCalldata() const
BoolResult ArrayType::validForLocation(DataLocation _loc) const
{
if (auto arrayBaseType = dynamic_cast<ArrayType const*>(baseType()))
if (!arrayBaseType->validForCalldata())
return false;
return isDynamicallySized() || unlimitedStaticCalldataSize(true) <= numeric_limits<unsigned>::max();
{
BoolResult result = arrayBaseType->validForLocation(_loc);
if (!result)
return result;
}
if (isDynamicallySized())
return true;
switch (_loc)
{
case DataLocation::Memory:
{
bigint size = bigint(length()) * m_baseType->memoryHeadSize();
if (size >= numeric_limits<unsigned>::max())
return BoolResult::err("Type too large for memory.");
break;
}
case DataLocation::CallData:
{
if (unlimitedStaticCalldataSize(true) >= numeric_limits<unsigned>::max())
return BoolResult::err("Type too large for calldata.");
break;
}
case DataLocation::Storage:
break;
}
return true;
}
bigint ArrayType::unlimitedStaticCalldataSize(bool _padded) const
@ -2272,6 +2295,18 @@ TypeResult StructType::interfaceType(bool _inLibrary) const
return *m_interfaceType_library;
}
BoolResult StructType::validForLocation(DataLocation _loc) const
{
for (auto const& member: m_struct.members())
if (auto referenceType = dynamic_cast<ReferenceType const*>(member->annotation().type))
{
BoolResult result = referenceType->validForLocation(_loc);
if (!result)
return result;
}
return true;
}
bool StructType::recursive() const
{
solAssert(m_struct.annotation().recursive.has_value(), "Called StructType::recursive() before DeclarationTypeChecker.");

11
libsolidity/ast/Types.h
View File

@ -706,6 +706,9 @@ public:
/// never change the contents of the original value.
bool isPointer() const;
/// @returns true if this is valid to be stored in data location _loc
virtual BoolResult validForLocation(DataLocation _loc) const = 0;
bool operator==(ReferenceType const& _other) const
{
return location() == _other.location() && isPointer() == _other.isPointer();
@ -772,8 +775,7 @@ public:
TypePointer decodingType() const override;
TypeResult interfaceType(bool _inLibrary) const override;
/// @returns true if this is valid to be stored in calldata
bool validForCalldata() const;
BoolResult validForLocation(DataLocation _loc) const override;
/// @returns true if this is a byte array or a string
bool isByteArray() const { return m_arrayKind != ArrayKind::Ordinary; }
@ -827,8 +829,7 @@ public:
bool canLiveOutsideStorage() const override { return m_arrayType.canLiveOutsideStorage(); }
std::string toString(bool _short) const override;
/// @returns true if this is valid to be stored in calldata
bool validForCalldata() const { return m_arrayType.validForCalldata(); }
BoolResult validForLocation(DataLocation _loc) const override { return m_arrayType.validForLocation(_loc); }
ArrayType const& arrayType() const { return m_arrayType; }
u256 memoryDataSize() const override { solAssert(false, ""); }
@ -934,6 +935,8 @@ public:
Type const* encodingType() const override;
TypeResult interfaceType(bool _inLibrary) const override;
BoolResult validForLocation(DataLocation _loc) const override;
bool recursive() const;
std::unique_ptr<ReferenceType> copyForLocation(DataLocation _location, bool _isPointer) const override;

1
test/libsolidity/syntaxTests/array/length/not_too_large.sol
View File

@ -7,3 +7,4 @@ contract C {
}
}
// ----
// TypeError: (226-234): Type too large for memory.

2
test/libsolidity/syntaxTests/array/length/parameter_too_large.sol
View File

@ -2,4 +2,4 @@ contract C {
function f(bytes32[1263941234127518272] memory) public pure {}
}
// ----
// TypeError: (26-61): Array is too large to be encoded.
// TypeError: (26-61): Type too large for memory.

8
test/libsolidity/syntaxTests/array/length/parameter_too_large_multidim.sol
View File

@ -2,10 +2,8 @@ contract C {
function f(bytes32[1263941234127518272][500] memory) public pure {}
function f(uint[2**30][] memory) public pure {}
function f(uint[2**30][2**30][] memory) public pure {}
function f(uint[2**16][2**16][] memory) public pure {}
}
// ----
// TypeError: (26-66): Array is too large to be encoded.
// TypeError: (96-116): Array is too large to be encoded.
// TypeError: (146-173): Array is too large to be encoded.
// TypeError: (203-230): Array is too large to be encoded.
// TypeError: (26-66): Type too large for memory.
// TypeError: (96-116): Type too large for memory.
// TypeError: (146-173): Type too large for memory.

4
test/libsolidity/syntaxTests/array/length/parameter_too_large_multidim_ABIv2.sol
View File

@ -5,5 +5,5 @@ contract C {
function f(uint[2**30][2**30][][] memory) public pure {}
}
// ----
// TypeError: (61-101): Array is too large to be encoded.
// TypeError: (131-160): Array is too large to be encoded.
// TypeError: (61-101): Type too large for memory.
// TypeError: (131-160): Type too large for memory.

17
test/libsolidity/syntaxTests/iceRegressionTests/large_array_in_memory_struct.sol Normal file
View File

@ -0,0 +1,17 @@
contract C {
struct X { bytes31 [ 3 ] x1 ;
uint x2 ;
}
struct S { uint256 [ ] [ 0.425781 ether ] s1 ;
uint [ 2 ** 0xFF ] [ 2 ** 0x42 ] s2 ;
X s3 ;
mapping ( uint => address payable ) c ;
uint [ 9 hours ** 16 ] d ;
string s ;
}
function f ( ) public { function ( function ( bytes9 , uint ) external pure returns ( uint ) , uint ) external pure returns ( uint ) [ 3 ] memory s2 ;
S memory s ;
}
}
// ----
// TypeError: (530-540): Type too large for memory.

12
test/libsolidity/syntaxTests/iceRegressionTests/large_array_in_memory_struct_2.sol Normal file
View File

@ -0,0 +1,12 @@
contract C {
struct R { uint[10][10] y; }
struct S { uint a; uint b; R d; uint[20][20][2999999999999999999999999990] c; }
function f() public pure {
C.S memory y;
C.S[10] memory z;
y.a < 2;
z; y;
}
}
// ----
// TypeError: (169-181): Type too large for memory.

7
test/libsolidity/syntaxTests/iceRegressionTests/memory_mapping_array.sol Normal file
View File

@ -0,0 +1,7 @@
contract C {
function h ( bool flag ) public returns ( bool c ) {
mapping ( string => uint24 ) [ 1 ] memory val ;
}
}
// ----
// TypeError: (91-136): Data location must be "storage" for variable, but "memory" was given.

13
test/libsolidity/syntaxTests/iceRegressionTests/recursive_struct_memory.sol Normal file
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@ -0,0 +1,13 @@
contract Test {
struct RecursiveStruct {
address payable d ;
mapping ( uint => address payable ) c ;
mapping ( uint => address payable [ ] ) d ;
}
function func ( ) private pure {
RecursiveStruct [ 1 ] memory val ;
val ;
}
}
// ----
// DeclarationError: (157-198): Identifier already declared.

2
test/libsolidity/syntaxTests/nameAndTypeResolution/207_no_mappings_in_memory_array.sol
View File

@ -4,4 +4,4 @@ contract C {
}
}
// ----
// TypeError: (47-77): Type mapping(uint256 => uint256)[] memory is only valid in storage.
// TypeError: (47-77): Data location must be "storage" for variable, but "memory" was given.

2
test/libsolidity/syntaxTests/nameAndTypeResolution/476_too_large_arrays_for_calldata_external.sol
View File

@ -3,4 +3,4 @@ contract C {
}
}
// ----
// TypeError: (28-56): Array is too large to be encoded.
// TypeError: (28-56): Type too large for calldata.

2
test/libsolidity/syntaxTests/nameAndTypeResolution/477_too_large_arrays_for_calldata_internal.sol
View File

@ -3,4 +3,4 @@ contract C {
}
}
// ----
// TypeError: (28-54): Array is too large to be encoded.
// TypeError: (28-54): Type too large for memory.

2
test/libsolidity/syntaxTests/nameAndTypeResolution/478_too_large_arrays_for_calldata_public.sol
View File

@ -3,4 +3,4 @@ contract C {
}
}
// ----
// TypeError: (28-54): Array is too large to be encoded.
// TypeError: (28-54): Type too large for memory.