mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
9a075458ad
notation Rational implemented...trying to figure out exponential fix for token bug, also quick fix for the wei and seconds fixed problem with var...probably a conversion problem for fixed in size capabilities adding fixed type tests Removing bitshift and regrouping fixed type tests together size capabilities functioning properly for fixed types got exponents up and working with their inverse, changed a few of the tests....something is working that likely shouldn't be slight changes to how to flip the rational negative around...still trying to figure it out tests added updated tests odd differences in trying soltest from solc binary, let me know if you can replicate test not working for odd reason fixed test problem with fixed literals...still need a way to log this error broken up the tests, added some, changed some things in types and began compiler work moar tests and prepping for rebuilding much of the types.cpp file further fixing initial work for fixed types...potentially needing a constant literal type for this
1084 lines
44 KiB
C++
1084 lines
44 KiB
C++
/*
|
|
This file is part of cpp-ethereum.
|
|
|
|
cpp-ethereum is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
cpp-ethereum is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/**
|
|
* @author Christian <c@ethdev.com>
|
|
* @date 2014
|
|
* Solidity data types
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
#include <map>
|
|
#include <boost/noncopyable.hpp>
|
|
#include <boost/rational.hpp>
|
|
#include <libdevcore/Common.h>
|
|
#include <libdevcore/CommonIO.h>
|
|
#include <libsolidity/interface/Exceptions.h>
|
|
#include <libsolidity/ast/ASTForward.h>
|
|
#include <libsolidity/parsing/Token.h>
|
|
#include <libdevcore/UndefMacros.h>
|
|
|
|
namespace dev
|
|
{
|
|
namespace solidity
|
|
{
|
|
|
|
class Type; // forward
|
|
class FunctionType; // forward
|
|
using TypePointer = std::shared_ptr<Type const>;
|
|
using FunctionTypePointer = std::shared_ptr<FunctionType const>;
|
|
using TypePointers = std::vector<TypePointer>;
|
|
using rational = boost::rational<bigint>;
|
|
|
|
|
|
enum class DataLocation { Storage, CallData, Memory };
|
|
|
|
/**
|
|
* Helper class to compute storage offsets of members of structs and contracts.
|
|
*/
|
|
class StorageOffsets
|
|
{
|
|
public:
|
|
/// Resets the StorageOffsets objects and determines the position in storage for each
|
|
/// of the elements of @a _types.
|
|
void computeOffsets(TypePointers const& _types);
|
|
/// @returns the offset of the given member, might be null if the member is not part of storage.
|
|
std::pair<u256, unsigned> const* offset(size_t _index) const;
|
|
/// @returns the total number of slots occupied by all members.
|
|
u256 const& storageSize() const { return m_storageSize; }
|
|
|
|
private:
|
|
u256 m_storageSize;
|
|
std::map<size_t, std::pair<u256, unsigned>> m_offsets;
|
|
};
|
|
|
|
/**
|
|
* List of members of a type.
|
|
*/
|
|
class MemberList
|
|
{
|
|
public:
|
|
struct Member
|
|
{
|
|
Member(std::string const& _name, TypePointer const& _type, Declaration const* _declaration = nullptr):
|
|
name(_name),
|
|
type(_type),
|
|
declaration(_declaration)
|
|
{
|
|
}
|
|
|
|
std::string name;
|
|
TypePointer type;
|
|
Declaration const* declaration = nullptr;
|
|
};
|
|
|
|
using MemberMap = std::vector<Member>;
|
|
|
|
MemberList() {}
|
|
explicit MemberList(MemberMap const& _members): m_memberTypes(_members) {}
|
|
MemberList& operator=(MemberList&& _other);
|
|
void combine(MemberList const& _other);
|
|
TypePointer memberType(std::string const& _name) const
|
|
{
|
|
TypePointer type;
|
|
for (auto const& it: m_memberTypes)
|
|
if (it.name == _name)
|
|
{
|
|
solAssert(!type, "Requested member type by non-unique name.");
|
|
type = it.type;
|
|
}
|
|
return type;
|
|
}
|
|
MemberMap membersByName(std::string const& _name) const
|
|
{
|
|
MemberMap members;
|
|
for (auto const& it: m_memberTypes)
|
|
if (it.name == _name)
|
|
members.push_back(it);
|
|
return members;
|
|
}
|
|
/// @returns the offset of the given member in storage slots and bytes inside a slot or
|
|
/// a nullptr if the member is not part of storage.
|
|
std::pair<u256, unsigned> const* memberStorageOffset(std::string const& _name) const;
|
|
/// @returns the number of storage slots occupied by the members.
|
|
u256 const& storageSize() const;
|
|
|
|
MemberMap::const_iterator begin() const { return m_memberTypes.begin(); }
|
|
MemberMap::const_iterator end() const { return m_memberTypes.end(); }
|
|
|
|
private:
|
|
MemberMap m_memberTypes;
|
|
mutable std::unique_ptr<StorageOffsets> m_storageOffsets;
|
|
};
|
|
|
|
/**
|
|
* Abstract base class that forms the root of the type hierarchy.
|
|
*/
|
|
class Type: private boost::noncopyable, public std::enable_shared_from_this<Type>
|
|
{
|
|
public:
|
|
enum class Category
|
|
{
|
|
Integer, NumberConstant, StringLiteral, Bool, FixedPoint, Array,
|
|
FixedBytes, Contract, Struct, Function, Enum, Tuple,
|
|
Mapping, TypeType, Modifier, Magic, Module
|
|
};
|
|
|
|
/// @{
|
|
/// @name Factory functions
|
|
/// Factory functions that convert an AST @ref TypeName to a Type.
|
|
static TypePointer fromElementaryTypeName(ElementaryTypeNameToken const& _type);
|
|
static TypePointer fromElementaryTypeName(std::string const& _name);
|
|
/// @}
|
|
|
|
/// Auto-detect the proper type for a literal. @returns an empty pointer if the literal does
|
|
/// not fit any type.
|
|
static TypePointer forLiteral(Literal const& _literal);
|
|
/// @returns a pointer to _a or _b if the other is implicitly convertible to it or nullptr otherwise
|
|
static TypePointer commonType(TypePointer const& _a, TypePointer const& _b);
|
|
|
|
virtual Category category() const = 0;
|
|
virtual bool isImplicitlyConvertibleTo(Type const& _other) const { return *this == _other; }
|
|
virtual bool isExplicitlyConvertibleTo(Type const& _convertTo) const
|
|
{
|
|
return isImplicitlyConvertibleTo(_convertTo);
|
|
}
|
|
/// @returns the resulting type of applying the given unary operator or an empty pointer if
|
|
/// this is not possible.
|
|
/// The default implementation does not allow any unary operator.
|
|
virtual TypePointer unaryOperatorResult(Token::Value) const { return TypePointer(); }
|
|
/// @returns the resulting type of applying the given binary operator or an empty pointer if
|
|
/// this is not possible.
|
|
/// The default implementation allows comparison operators if a common type exists
|
|
virtual TypePointer binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const
|
|
{
|
|
return Token::isCompareOp(_operator) ? commonType(shared_from_this(), _other) : TypePointer();
|
|
}
|
|
|
|
virtual bool operator==(Type const& _other) const { return category() == _other.category(); }
|
|
virtual bool operator!=(Type const& _other) const { return !this->operator ==(_other); }
|
|
|
|
/// @returns number of bytes used by this type when encoded for CALL. If it is a dynamic type,
|
|
/// returns the size of the pointer (usually 32). Returns 0 if the type cannot be encoded
|
|
/// in calldata.
|
|
/// If @a _padded then it is assumed that each element is padded to a multiple of 32 bytes.
|
|
virtual unsigned calldataEncodedSize(bool _padded) const { (void)_padded; return 0; }
|
|
/// @returns the size of this data type in bytes when stored in memory. For memory-reference
|
|
/// types, this is the size of the memory pointer.
|
|
virtual unsigned memoryHeadSize() const { return calldataEncodedSize(); }
|
|
/// Convenience version of @see calldataEncodedSize(bool)
|
|
unsigned calldataEncodedSize() const { return calldataEncodedSize(true); }
|
|
/// @returns true if the type is dynamically encoded in calldata
|
|
virtual bool isDynamicallySized() const { return false; }
|
|
/// @returns the number of storage slots required to hold this value in storage.
|
|
/// For dynamically "allocated" types, it returns the size of the statically allocated head,
|
|
virtual u256 storageSize() const { return 1; }
|
|
/// Multiple small types can be packed into a single storage slot. If such a packing is possible
|
|
/// this function @returns the size in bytes smaller than 32. Data is moved to the next slot if
|
|
/// it does not fit.
|
|
/// In order to avoid computation at runtime of whether such moving is necessary, structs and
|
|
/// array data (not each element) always start a new slot.
|
|
virtual unsigned storageBytes() const { return 32; }
|
|
/// Returns true if the type can be stored in storage.
|
|
virtual bool canBeStored() const { return true; }
|
|
/// Returns false if the type cannot live outside the storage, i.e. if it includes some mapping.
|
|
virtual bool canLiveOutsideStorage() const { return true; }
|
|
/// Returns true if the type can be stored as a value (as opposed to a reference) on the stack,
|
|
/// i.e. it behaves differently in lvalue context and in value context.
|
|
virtual bool isValueType() const { return false; }
|
|
virtual unsigned sizeOnStack() const { return 1; }
|
|
/// @returns the mobile (in contrast to static) type corresponding to the given type.
|
|
/// This returns the corresponding integer type for ConstantTypes and the pointer type
|
|
/// for storage reference types.
|
|
virtual TypePointer mobileType() const { return shared_from_this(); }
|
|
/// @returns true if this is a non-value type and the data of this type is stored at the
|
|
/// given location.
|
|
virtual bool dataStoredIn(DataLocation) const { return false; }
|
|
/// @returns the type of a temporary during assignment to a variable of the given type.
|
|
/// Specifically, returns the requested itself if it can be dynamically allocated (or is a value type)
|
|
/// and the mobile type otherwise.
|
|
virtual TypePointer closestTemporaryType(TypePointer const& _targetType) const
|
|
{
|
|
return _targetType->dataStoredIn(DataLocation::Storage) ? mobileType() : _targetType;
|
|
}
|
|
|
|
/// Returns the list of all members of this type. Default implementation: no members apart from bound.
|
|
/// @param _currentScope scope in which the members are accessed.
|
|
MemberList const& members(ContractDefinition const* _currentScope) const;
|
|
/// Convenience method, returns the type of the given named member or an empty pointer if no such member exists.
|
|
TypePointer memberType(std::string const& _name, ContractDefinition const* _currentScope = nullptr) const
|
|
{
|
|
return members(_currentScope).memberType(_name);
|
|
}
|
|
|
|
virtual std::string toString(bool _short) const = 0;
|
|
std::string toString() const { return toString(false); }
|
|
/// @returns the canonical name of this type for use in function signatures.
|
|
/// @param _addDataLocation if true, includes data location for reference types if it is "storage".
|
|
virtual std::string canonicalName(bool /*_addDataLocation*/) const { return toString(true); }
|
|
virtual u256 literalValue(Literal const*) const
|
|
{
|
|
BOOST_THROW_EXCEPTION(
|
|
InternalCompilerError() <<
|
|
errinfo_comment("Literal value requested for type without literals.")
|
|
);
|
|
}
|
|
|
|
/// @returns a (simpler) type that is encoded in the same way for external function calls.
|
|
/// This for example returns address for contract types.
|
|
/// If there is no such type, returns an empty shared pointer.
|
|
virtual TypePointer encodingType() const { return TypePointer(); }
|
|
/// @returns a (simpler) type that is used when decoding this type in calldata.
|
|
virtual TypePointer decodingType() const { return encodingType(); }
|
|
/// @returns a type that will be used outside of Solidity for e.g. function signatures.
|
|
/// This for example returns address for contract types.
|
|
/// If there is no such type, returns an empty shared pointer.
|
|
/// @param _inLibrary if set, returns types as used in a library, e.g. struct and contract types
|
|
/// are returned without modification.
|
|
virtual TypePointer interfaceType(bool /*_inLibrary*/) const { return TypePointer(); }
|
|
|
|
private:
|
|
/// @returns a member list containing all members added to this type by `using for` directives.
|
|
static MemberList::MemberMap boundFunctions(Type const& _type, ContractDefinition const& _scope);
|
|
|
|
protected:
|
|
/// @returns the members native to this type depending on the given context. This function
|
|
/// is used (in conjunction with boundFunctions to fill m_members below.
|
|
virtual MemberList::MemberMap nativeMembers(ContractDefinition const* /*_currentScope*/) const
|
|
{
|
|
return MemberList::MemberMap();
|
|
}
|
|
|
|
/// List of member types (parameterised by scape), will be lazy-initialized.
|
|
mutable std::map<ContractDefinition const*, std::unique_ptr<MemberList>> m_members;
|
|
};
|
|
|
|
/**
|
|
* Any kind of integer type (signed, unsigned, address).
|
|
*/
|
|
class IntegerType: public Type
|
|
{
|
|
public:
|
|
enum class Modifier
|
|
{
|
|
Unsigned, Signed, Address
|
|
};
|
|
virtual Category category() const override { return Category::Integer; }
|
|
|
|
explicit IntegerType(int _bits, Modifier _modifier = Modifier::Unsigned);
|
|
|
|
virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual bool isExplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual TypePointer unaryOperatorResult(Token::Value _operator) const override;
|
|
virtual TypePointer binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const override;
|
|
|
|
virtual bool operator==(Type const& _other) const override;
|
|
|
|
virtual unsigned calldataEncodedSize(bool _padded = true) const override { return _padded ? 32 : m_bits / 8; }
|
|
virtual unsigned storageBytes() const override { return m_bits / 8; }
|
|
virtual bool isValueType() const override { return true; }
|
|
|
|
virtual MemberList::MemberMap nativeMembers(ContractDefinition const*) const override;
|
|
|
|
virtual std::string toString(bool _short) const override;
|
|
|
|
virtual TypePointer encodingType() const override { return shared_from_this(); }
|
|
virtual TypePointer interfaceType(bool) const override { return shared_from_this(); }
|
|
|
|
int numBits() const { return m_bits; }
|
|
bool isAddress() const { return m_modifier == Modifier::Address; }
|
|
bool isSigned() const { return m_modifier == Modifier::Signed; }
|
|
|
|
private:
|
|
int m_bits;
|
|
Modifier m_modifier;
|
|
};
|
|
|
|
/**
|
|
* A fixed point type number (signed, unsigned).
|
|
*/
|
|
class FixedPointType: public Type
|
|
{
|
|
public:
|
|
enum class Modifier
|
|
{
|
|
Unsigned, Signed
|
|
};
|
|
virtual Category category() const override { return Category::FixedPoint; }
|
|
|
|
explicit FixedPointType(int _integerBits, int _fractionalBits, Modifier _modifier = Modifier::Unsigned);
|
|
|
|
virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual bool isExplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual TypePointer unaryOperatorResult(Token::Value _operator) const override;
|
|
virtual TypePointer binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const override;
|
|
|
|
virtual bool operator==(Type const& _other) const override;
|
|
|
|
virtual unsigned calldataEncodedSize(bool _padded = true) const override { return _padded ? 32 : (m_integerBits + m_fractionalBits) / 8; }
|
|
virtual unsigned storageBytes() const override { return (m_integerBits + m_fractionalBits) / 8; }
|
|
virtual bool isValueType() const override { return true; }
|
|
|
|
virtual std::string toString(bool _short) const override;
|
|
|
|
virtual TypePointer encodingType() const override { return shared_from_this(); }
|
|
virtual TypePointer interfaceType(bool) const override { return shared_from_this(); }
|
|
|
|
int numBits() const { return m_integerBits + m_fractionalBits; }
|
|
int integerBits() const { return m_integerBits; }
|
|
int fractionalBits() const { return m_fractionalBits; }
|
|
bool isSigned() const { return m_modifier == Modifier::Signed; }
|
|
|
|
private:
|
|
int m_integerBits;
|
|
int m_fractionalBits;
|
|
Modifier m_modifier;
|
|
};
|
|
|
|
/**
|
|
* Integer and fixed point constants either literals or computed.
|
|
* Example expressions: 2, 3.14, 2+10.2, ~10.
|
|
* There is one distinct type per value.
|
|
*/
|
|
class ConstantNumberType: public Type
|
|
{
|
|
public:
|
|
|
|
virtual Category category() const override { return Category::NumberConstant; }
|
|
|
|
/// @returns true if the literal is a valid integer.
|
|
static bool isValidLiteral(Literal const& _literal);
|
|
|
|
explicit ConstantNumberType(Literal const& _literal);
|
|
explicit ConstantNumberType(rational _value):
|
|
m_value(_value)
|
|
{}
|
|
virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual bool isExplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual TypePointer unaryOperatorResult(Token::Value _operator) const override;
|
|
virtual TypePointer binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const override;
|
|
|
|
virtual bool operator==(Type const& _other) const override;
|
|
|
|
virtual bool canBeStored() const override { return false; }
|
|
virtual bool canLiveOutsideStorage() const override { return false; }
|
|
|
|
virtual std::string toString(bool _short) const override;
|
|
virtual u256 literalValue(Literal const* _literal) const override;
|
|
virtual TypePointer mobileType() const override;
|
|
|
|
/// @returns the smallest integer type that can hold the value or an empty pointer if not possible.
|
|
std::shared_ptr<IntegerType const> integerType() const;
|
|
/// @returns the smallest fixed type that can hold the value or an empty pointer
|
|
std::shared_ptr<FixedPointType const> fixedPointType() const;
|
|
bigint denominator() const { return m_value.denominator(); }
|
|
|
|
private:
|
|
rational m_value;
|
|
};
|
|
|
|
/**
|
|
* Literal string, can be converted to bytes, bytesX or string.
|
|
*/
|
|
class StringLiteralType: public Type
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::StringLiteral; }
|
|
|
|
explicit StringLiteralType(Literal const& _literal);
|
|
|
|
virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual TypePointer binaryOperatorResult(Token::Value, TypePointer const&) const override
|
|
{
|
|
return TypePointer();
|
|
}
|
|
|
|
virtual bool operator==(Type const& _other) const override;
|
|
|
|
virtual bool canBeStored() const override { return false; }
|
|
virtual bool canLiveOutsideStorage() const override { return false; }
|
|
virtual unsigned sizeOnStack() const override { return 0; }
|
|
|
|
virtual std::string toString(bool) const override { return "literal_string \"" + m_value + "\""; }
|
|
virtual TypePointer mobileType() const override;
|
|
|
|
std::string const& value() const { return m_value; }
|
|
|
|
private:
|
|
std::string m_value;
|
|
};
|
|
|
|
/**
|
|
* Bytes type with fixed length of up to 32 bytes.
|
|
*/
|
|
class FixedBytesType: public Type
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::FixedBytes; }
|
|
|
|
/// @returns the smallest bytes type for the given literal or an empty pointer
|
|
/// if no type fits.
|
|
static std::shared_ptr<FixedBytesType> smallestTypeForLiteral(std::string const& _literal);
|
|
|
|
explicit FixedBytesType(int _bytes);
|
|
|
|
virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual bool isExplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual TypePointer unaryOperatorResult(Token::Value _operator) const override;
|
|
virtual TypePointer binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const override;
|
|
|
|
virtual unsigned calldataEncodedSize(bool _padded) const override { return _padded && m_bytes > 0 ? 32 : m_bytes; }
|
|
virtual unsigned storageBytes() const override { return m_bytes; }
|
|
virtual bool isValueType() const override { return true; }
|
|
|
|
virtual std::string toString(bool) const override { return "bytes" + dev::toString(m_bytes); }
|
|
virtual MemberList::MemberMap nativeMembers(ContractDefinition const*) const override;
|
|
virtual TypePointer encodingType() const override { return shared_from_this(); }
|
|
virtual TypePointer interfaceType(bool) const override { return shared_from_this(); }
|
|
|
|
int numBytes() const { return m_bytes; }
|
|
|
|
private:
|
|
int m_bytes;
|
|
};
|
|
|
|
/**
|
|
* The boolean type.
|
|
*/
|
|
class BoolType: public Type
|
|
{
|
|
public:
|
|
BoolType() {}
|
|
virtual Category category() const override { return Category::Bool; }
|
|
virtual bool isExplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual TypePointer unaryOperatorResult(Token::Value _operator) const override;
|
|
virtual TypePointer binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const override;
|
|
|
|
virtual unsigned calldataEncodedSize(bool _padded) const override{ return _padded ? 32 : 1; }
|
|
virtual unsigned storageBytes() const override { return 1; }
|
|
virtual bool isValueType() const override { return true; }
|
|
|
|
virtual std::string toString(bool) const override { return "bool"; }
|
|
virtual u256 literalValue(Literal const* _literal) const override;
|
|
virtual TypePointer encodingType() const override { return shared_from_this(); }
|
|
virtual TypePointer interfaceType(bool) const override { return shared_from_this(); }
|
|
};
|
|
|
|
/**
|
|
* Base class used by types which are not value types and can be stored either in storage, memory
|
|
* or calldata. This is currently used by arrays and structs.
|
|
*/
|
|
class ReferenceType: public Type
|
|
{
|
|
public:
|
|
explicit ReferenceType(DataLocation _location): m_location(_location) {}
|
|
DataLocation location() const { return m_location; }
|
|
|
|
virtual TypePointer unaryOperatorResult(Token::Value _operator) const override;
|
|
virtual TypePointer binaryOperatorResult(Token::Value, TypePointer const&) const override
|
|
{
|
|
return TypePointer();
|
|
}
|
|
virtual unsigned memoryHeadSize() const override { return 32; }
|
|
|
|
/// @returns a copy of this type with location (recursively) changed to @a _location,
|
|
/// whereas isPointer is only shallowly changed - the deep copy is always a bound reference.
|
|
virtual TypePointer copyForLocation(DataLocation _location, bool _isPointer) const = 0;
|
|
|
|
virtual TypePointer mobileType() const override { return copyForLocation(m_location, true); }
|
|
virtual bool dataStoredIn(DataLocation _location) const override { return m_location == _location; }
|
|
|
|
/// Storage references can be pointers or bound references. In general, local variables are of
|
|
/// pointer type, state variables are bound references. Assignments to pointers or deleting
|
|
/// them will not modify storage (that will only change the pointer). Assignment from
|
|
/// non-storage objects to a variable of storage pointer type is not possible.
|
|
bool isPointer() const { return m_isPointer; }
|
|
|
|
bool operator==(ReferenceType const& _other) const
|
|
{
|
|
return location() == _other.location() && isPointer() == _other.isPointer();
|
|
}
|
|
|
|
/// @returns a copy of @a _type having the same location as this (and is not a pointer type)
|
|
/// if _type is a reference type and an unmodified copy of _type otherwise.
|
|
/// This function is mostly useful to modify inner types appropriately.
|
|
static TypePointer copyForLocationIfReference(DataLocation _location, TypePointer const& _type);
|
|
|
|
protected:
|
|
TypePointer copyForLocationIfReference(TypePointer const& _type) const;
|
|
/// @returns a human-readable description of the reference part of the type.
|
|
std::string stringForReferencePart() const;
|
|
|
|
DataLocation m_location = DataLocation::Storage;
|
|
bool m_isPointer = true;
|
|
};
|
|
|
|
/**
|
|
* The type of an array. The flavours are byte array (bytes), statically- (<type>[<length>])
|
|
* and dynamically-sized array (<type>[]).
|
|
* In storage, all arrays are packed tightly (as long as more than one elementary type fits in
|
|
* one slot). Dynamically sized arrays (including byte arrays) start with their size as a uint and
|
|
* thus start on their own slot.
|
|
*/
|
|
class ArrayType: public ReferenceType
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::Array; }
|
|
|
|
/// Constructor for a byte array ("bytes") and string.
|
|
explicit ArrayType(DataLocation _location, bool _isString = false):
|
|
ReferenceType(_location),
|
|
m_arrayKind(_isString ? ArrayKind::String : ArrayKind::Bytes),
|
|
m_baseType(std::make_shared<FixedBytesType>(1))
|
|
{
|
|
}
|
|
/// Constructor for a dynamically sized array type ("type[]")
|
|
ArrayType(DataLocation _location, TypePointer const& _baseType):
|
|
ReferenceType(_location),
|
|
m_baseType(copyForLocationIfReference(_baseType))
|
|
{
|
|
}
|
|
/// Constructor for a fixed-size array type ("type[20]")
|
|
ArrayType(DataLocation _location, TypePointer const& _baseType, u256 const& _length):
|
|
ReferenceType(_location),
|
|
m_baseType(copyForLocationIfReference(_baseType)),
|
|
m_hasDynamicLength(false),
|
|
m_length(_length)
|
|
{}
|
|
|
|
virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual bool isExplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual bool operator==(const Type& _other) const override;
|
|
virtual unsigned calldataEncodedSize(bool _padded) const override;
|
|
virtual bool isDynamicallySized() const override { return m_hasDynamicLength; }
|
|
virtual u256 storageSize() const override;
|
|
virtual bool canLiveOutsideStorage() const override { return m_baseType->canLiveOutsideStorage(); }
|
|
virtual unsigned sizeOnStack() const override;
|
|
virtual std::string toString(bool _short) const override;
|
|
virtual std::string canonicalName(bool _addDataLocation) const override;
|
|
virtual MemberList::MemberMap nativeMembers(ContractDefinition const* _currentScope) const override;
|
|
virtual TypePointer encodingType() const override;
|
|
virtual TypePointer decodingType() const override;
|
|
virtual TypePointer interfaceType(bool _inLibrary) const override;
|
|
|
|
/// @returns true if this is a byte array or a string
|
|
bool isByteArray() const { return m_arrayKind != ArrayKind::Ordinary; }
|
|
/// @returns true if this is a string
|
|
bool isString() const { return m_arrayKind == ArrayKind::String; }
|
|
TypePointer const& baseType() const { solAssert(!!m_baseType, ""); return m_baseType;}
|
|
u256 const& length() const { return m_length; }
|
|
u256 memorySize() const;
|
|
|
|
TypePointer copyForLocation(DataLocation _location, bool _isPointer) const override;
|
|
|
|
private:
|
|
/// String is interpreted as a subtype of Bytes.
|
|
enum class ArrayKind { Ordinary, Bytes, String };
|
|
|
|
///< Byte arrays ("bytes") and strings have different semantics from ordinary arrays.
|
|
ArrayKind m_arrayKind = ArrayKind::Ordinary;
|
|
TypePointer m_baseType;
|
|
bool m_hasDynamicLength = true;
|
|
u256 m_length;
|
|
};
|
|
|
|
/**
|
|
* The type of a contract instance or library, there is one distinct type for each contract definition.
|
|
*/
|
|
class ContractType: public Type
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::Contract; }
|
|
explicit ContractType(ContractDefinition const& _contract, bool _super = false):
|
|
m_contract(_contract), m_super(_super) {}
|
|
/// Contracts can be implicitly converted to super classes and to addresses.
|
|
virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
/// Contracts can be converted to themselves and to integers.
|
|
virtual bool isExplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual TypePointer unaryOperatorResult(Token::Value _operator) const override;
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual unsigned calldataEncodedSize(bool _padded ) const override
|
|
{
|
|
return encodingType()->calldataEncodedSize(_padded);
|
|
}
|
|
virtual unsigned storageBytes() const override { return 20; }
|
|
virtual bool canLiveOutsideStorage() const override { return true; }
|
|
virtual bool isValueType() const override { return true; }
|
|
virtual std::string toString(bool _short) const override;
|
|
virtual std::string canonicalName(bool _addDataLocation) const override;
|
|
|
|
virtual MemberList::MemberMap nativeMembers(ContractDefinition const* _currentScope) const override;
|
|
virtual TypePointer encodingType() const override
|
|
{
|
|
return std::make_shared<IntegerType>(160, IntegerType::Modifier::Address);
|
|
}
|
|
virtual TypePointer interfaceType(bool _inLibrary) const override
|
|
{
|
|
return _inLibrary ? shared_from_this() : encodingType();
|
|
}
|
|
|
|
bool isSuper() const { return m_super; }
|
|
ContractDefinition const& contractDefinition() const { return m_contract; }
|
|
|
|
/// Returns the function type of the constructor. Note that the location part of the function type
|
|
/// is not used, as this type cannot be the type of a variable or expression.
|
|
FunctionTypePointer const& constructorType() const;
|
|
|
|
/// @returns the identifier of the function with the given name or Invalid256 if such a name does
|
|
/// not exist.
|
|
u256 functionIdentifier(std::string const& _functionName) const;
|
|
|
|
/// @returns a list of all state variables (including inherited) of the contract and their
|
|
/// offsets in storage.
|
|
std::vector<std::tuple<VariableDeclaration const*, u256, unsigned>> stateVariables() const;
|
|
|
|
private:
|
|
ContractDefinition const& m_contract;
|
|
/// If true, it is the "super" type of the current contract, i.e. it contains only inherited
|
|
/// members.
|
|
bool m_super = false;
|
|
/// Type of the constructor, @see constructorType. Lazily initialized.
|
|
mutable FunctionTypePointer m_constructorType;
|
|
};
|
|
|
|
/**
|
|
* The type of a struct instance, there is one distinct type per struct definition.
|
|
*/
|
|
class StructType: public ReferenceType
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::Struct; }
|
|
explicit StructType(StructDefinition const& _struct, DataLocation _location = DataLocation::Storage):
|
|
ReferenceType(_location), m_struct(_struct) {}
|
|
virtual bool isImplicitlyConvertibleTo(const Type& _convertTo) const override;
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual unsigned calldataEncodedSize(bool _padded) const override;
|
|
u256 memorySize() const;
|
|
virtual u256 storageSize() const override;
|
|
virtual bool canLiveOutsideStorage() const override { return true; }
|
|
virtual std::string toString(bool _short) const override;
|
|
|
|
virtual MemberList::MemberMap nativeMembers(ContractDefinition const* _currentScope) const override;
|
|
virtual TypePointer encodingType() const override
|
|
{
|
|
return location() == DataLocation::Storage ? std::make_shared<IntegerType>(256) : TypePointer();
|
|
}
|
|
virtual TypePointer interfaceType(bool _inLibrary) const override;
|
|
|
|
TypePointer copyForLocation(DataLocation _location, bool _isPointer) const override;
|
|
|
|
virtual std::string canonicalName(bool _addDataLocation) const override;
|
|
|
|
/// @returns a function that peforms the type conversion between a list of struct members
|
|
/// and a memory struct of this type.
|
|
FunctionTypePointer constructorType() const;
|
|
|
|
std::pair<u256, unsigned> const& storageOffsetsOfMember(std::string const& _name) const;
|
|
u256 memoryOffsetOfMember(std::string const& _name) const;
|
|
|
|
StructDefinition const& structDefinition() const { return m_struct; }
|
|
|
|
/// @returns the set of all members that are removed in the memory version (typically mappings).
|
|
std::set<std::string> membersMissingInMemory() const;
|
|
|
|
private:
|
|
StructDefinition const& m_struct;
|
|
};
|
|
|
|
/**
|
|
* The type of an enum instance, there is one distinct type per enum definition.
|
|
*/
|
|
class EnumType: public Type
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::Enum; }
|
|
explicit EnumType(EnumDefinition const& _enum): m_enum(_enum) {}
|
|
virtual TypePointer unaryOperatorResult(Token::Value _operator) const override;
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual unsigned calldataEncodedSize(bool _padded) const override
|
|
{
|
|
return encodingType()->calldataEncodedSize(_padded);
|
|
}
|
|
virtual unsigned storageBytes() const override;
|
|
virtual bool canLiveOutsideStorage() const override { return true; }
|
|
virtual std::string toString(bool _short) const override;
|
|
virtual std::string canonicalName(bool _addDataLocation) const override;
|
|
virtual bool isValueType() const override { return true; }
|
|
|
|
virtual bool isExplicitlyConvertibleTo(Type const& _convertTo) const override;
|
|
virtual TypePointer encodingType() const override
|
|
{
|
|
return std::make_shared<IntegerType>(8 * int(storageBytes()));
|
|
}
|
|
virtual TypePointer interfaceType(bool _inLibrary) const override
|
|
{
|
|
return _inLibrary ? shared_from_this() : encodingType();
|
|
}
|
|
|
|
EnumDefinition const& enumDefinition() const { return m_enum; }
|
|
/// @returns the value that the string has in the Enum
|
|
unsigned int memberValue(ASTString const& _member) const;
|
|
|
|
private:
|
|
EnumDefinition const& m_enum;
|
|
};
|
|
|
|
/**
|
|
* Type that can hold a finite sequence of values of different types.
|
|
* In some cases, the components are empty pointers (when used as placeholders).
|
|
*/
|
|
class TupleType: public Type
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::Tuple; }
|
|
explicit TupleType(std::vector<TypePointer> const& _types = std::vector<TypePointer>()): m_components(_types) {}
|
|
virtual bool isImplicitlyConvertibleTo(Type const& _other) const override;
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual TypePointer binaryOperatorResult(Token::Value, TypePointer const&) const override { return TypePointer(); }
|
|
virtual std::string toString(bool) const override;
|
|
virtual bool canBeStored() const override { return false; }
|
|
virtual u256 storageSize() const override;
|
|
virtual bool canLiveOutsideStorage() const override { return false; }
|
|
virtual unsigned sizeOnStack() const override;
|
|
virtual TypePointer mobileType() const override;
|
|
/// Converts components to their temporary types and performs some wildcard matching.
|
|
virtual TypePointer closestTemporaryType(TypePointer const& _targetType) const override;
|
|
|
|
std::vector<TypePointer> const& components() const { return m_components; }
|
|
|
|
private:
|
|
std::vector<TypePointer> const m_components;
|
|
};
|
|
|
|
/**
|
|
* The type of a function, identified by its (return) parameter types.
|
|
* @todo the return parameters should also have names, i.e. return parameters should be a struct
|
|
* type.
|
|
*/
|
|
class FunctionType: public Type
|
|
{
|
|
public:
|
|
/// How this function is invoked on the EVM.
|
|
/// @todo This documentation is outdated, and Location should rather be named "Type"
|
|
enum class Location
|
|
{
|
|
Internal, ///< stack-call using plain JUMP
|
|
External, ///< external call using CALL
|
|
CallCode, ///< extercnal call using CALLCODE, i.e. not exchanging the storage
|
|
DelegateCall, ///< extercnal call using DELEGATECALL, i.e. not exchanging the storage
|
|
Bare, ///< CALL without function hash
|
|
BareCallCode, ///< CALLCODE without function hash
|
|
BareDelegateCall, ///< DELEGATECALL without function hash
|
|
Creation, ///< external call using CREATE
|
|
Send, ///< CALL, but without data and gas
|
|
SHA3, ///< SHA3
|
|
Selfdestruct, ///< SELFDESTRUCT
|
|
ECRecover, ///< CALL to special contract for ecrecover
|
|
SHA256, ///< CALL to special contract for sha256
|
|
RIPEMD160, ///< CALL to special contract for ripemd160
|
|
Log0,
|
|
Log1,
|
|
Log2,
|
|
Log3,
|
|
Log4,
|
|
Event, ///< syntactic sugar for LOG*
|
|
SetGas, ///< modify the default gas value for the function call
|
|
SetValue, ///< modify the default value transfer for the function call
|
|
BlockHash, ///< BLOCKHASH
|
|
AddMod, ///< ADDMOD
|
|
MulMod, ///< MULMOD
|
|
ArrayPush, ///< .push() to a dynamically sized array in storage
|
|
ByteArrayPush, ///< .push() to a dynamically sized byte array in storage
|
|
ObjectCreation ///< array creation using new
|
|
};
|
|
|
|
virtual Category category() const override { return Category::Function; }
|
|
|
|
/// Creates the type of a function.
|
|
explicit FunctionType(FunctionDefinition const& _function, bool _isInternal = true);
|
|
/// Creates the accessor function type of a state variable.
|
|
explicit FunctionType(VariableDeclaration const& _varDecl);
|
|
/// Creates the function type of an event.
|
|
explicit FunctionType(EventDefinition const& _event);
|
|
FunctionType(
|
|
strings const& _parameterTypes,
|
|
strings const& _returnParameterTypes,
|
|
Location _location = Location::Internal,
|
|
bool _arbitraryParameters = false
|
|
): FunctionType(
|
|
parseElementaryTypeVector(_parameterTypes),
|
|
parseElementaryTypeVector(_returnParameterTypes),
|
|
strings(),
|
|
strings(),
|
|
_location,
|
|
_arbitraryParameters
|
|
)
|
|
{
|
|
}
|
|
FunctionType(
|
|
TypePointers const& _parameterTypes,
|
|
TypePointers const& _returnParameterTypes,
|
|
strings _parameterNames = strings(),
|
|
strings _returnParameterNames = strings(),
|
|
Location _location = Location::Internal,
|
|
bool _arbitraryParameters = false,
|
|
Declaration const* _declaration = nullptr,
|
|
bool _gasSet = false,
|
|
bool _valueSet = false,
|
|
bool _bound = false
|
|
):
|
|
m_parameterTypes(_parameterTypes),
|
|
m_returnParameterTypes(_returnParameterTypes),
|
|
m_parameterNames(_parameterNames),
|
|
m_returnParameterNames(_returnParameterNames),
|
|
m_location(_location),
|
|
m_arbitraryParameters(_arbitraryParameters),
|
|
m_gasSet(_gasSet),
|
|
m_valueSet(_valueSet),
|
|
m_bound(_bound),
|
|
m_declaration(_declaration)
|
|
{}
|
|
|
|
TypePointers parameterTypes() const;
|
|
std::vector<std::string> parameterNames() const;
|
|
std::vector<std::string> const parameterTypeNames(bool _addDataLocation) const;
|
|
TypePointers const& returnParameterTypes() const { return m_returnParameterTypes; }
|
|
std::vector<std::string> const& returnParameterNames() const { return m_returnParameterNames; }
|
|
std::vector<std::string> const returnParameterTypeNames(bool _addDataLocation) const;
|
|
/// @returns the "self" parameter type for a bound function
|
|
TypePointer selfType() const;
|
|
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual std::string toString(bool _short) const override;
|
|
virtual bool canBeStored() const override { return false; }
|
|
virtual u256 storageSize() const override;
|
|
virtual bool canLiveOutsideStorage() const override { return false; }
|
|
virtual unsigned sizeOnStack() const override;
|
|
virtual MemberList::MemberMap nativeMembers(ContractDefinition const* _currentScope) const override;
|
|
|
|
/// @returns TypePointer of a new FunctionType object. All input/return parameters are an
|
|
/// appropriate external types (i.e. the interfaceType()s) of input/return parameters of
|
|
/// current function.
|
|
/// @returns an empty shared pointer if one of the input/return parameters does not have an
|
|
/// external type.
|
|
FunctionTypePointer interfaceFunctionType() const;
|
|
|
|
/// @returns true if this function can take the given argument types (possibly
|
|
/// after implicit conversion).
|
|
/// @param _selfType if the function is bound, this has to be supplied and is the type of the
|
|
/// expression the function is called on.
|
|
bool canTakeArguments(TypePointers const& _arguments, TypePointer const& _selfType = TypePointer()) const;
|
|
/// @returns true if the types of parameters are equal (does't check return parameter types)
|
|
bool hasEqualArgumentTypes(FunctionType const& _other) const;
|
|
|
|
/// @returns true if the ABI is used for this call (only meaningful for external calls)
|
|
bool isBareCall() const;
|
|
Location const& location() const { return m_location; }
|
|
/// @returns the external signature of this function type given the function name
|
|
std::string externalSignature() const;
|
|
/// @returns the external identifier of this function (the hash of the signature).
|
|
u256 externalIdentifier() const;
|
|
Declaration const& declaration() const
|
|
{
|
|
solAssert(m_declaration, "Requested declaration from a FunctionType that has none");
|
|
return *m_declaration;
|
|
}
|
|
bool hasDeclaration() const { return !!m_declaration; }
|
|
bool isConstant() const { return m_isConstant; }
|
|
/// @return A shared pointer of an ASTString.
|
|
/// Can contain a nullptr in which case indicates absence of documentation
|
|
ASTPointer<ASTString> documentation() const;
|
|
|
|
/// true iff arguments are to be padded to multiples of 32 bytes for external calls
|
|
bool padArguments() const { return !(m_location == Location::SHA3 || m_location == Location::SHA256 || m_location == Location::RIPEMD160); }
|
|
bool takesArbitraryParameters() const { return m_arbitraryParameters; }
|
|
bool gasSet() const { return m_gasSet; }
|
|
bool valueSet() const { return m_valueSet; }
|
|
bool bound() const { return m_bound; }
|
|
|
|
/// @returns a copy of this type, where gas or value are set manually. This will never set one
|
|
/// of the parameters to fals.
|
|
TypePointer copyAndSetGasOrValue(bool _setGas, bool _setValue) const;
|
|
|
|
/// @returns a copy of this function type where all return parameters of dynamic size are
|
|
/// removed and the location of reference types is changed from CallData to Memory.
|
|
/// This is needed if external functions are called on other contracts, as they cannot return
|
|
/// dynamic values.
|
|
/// @param _inLibrary if true, uses DelegateCall as location.
|
|
/// @param _bound if true, the argumenst are placed as `arg1.functionName(arg2, ..., argn)`.
|
|
FunctionTypePointer asMemberFunction(bool _inLibrary, bool _bound = false) const;
|
|
|
|
private:
|
|
static TypePointers parseElementaryTypeVector(strings const& _types);
|
|
|
|
TypePointers m_parameterTypes;
|
|
TypePointers m_returnParameterTypes;
|
|
std::vector<std::string> m_parameterNames;
|
|
std::vector<std::string> m_returnParameterNames;
|
|
Location const m_location;
|
|
/// true if the function takes an arbitrary number of arguments of arbitrary types
|
|
bool const m_arbitraryParameters = false;
|
|
bool const m_gasSet = false; ///< true iff the gas value to be used is on the stack
|
|
bool const m_valueSet = false; ///< true iff the value to be sent is on the stack
|
|
bool const m_bound = false; ///< true iff the function is called as arg1.fun(arg2, ..., argn)
|
|
bool m_isConstant = false;
|
|
Declaration const* m_declaration = nullptr;
|
|
};
|
|
|
|
/**
|
|
* The type of a mapping, there is one distinct type per key/value type pair.
|
|
* Mappings always occupy their own storage slot, but do not actually use it.
|
|
*/
|
|
class MappingType: public Type
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::Mapping; }
|
|
MappingType(TypePointer const& _keyType, TypePointer const& _valueType):
|
|
m_keyType(_keyType), m_valueType(_valueType) {}
|
|
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual std::string toString(bool _short) const override;
|
|
virtual std::string canonicalName(bool _addDataLocation) const override;
|
|
virtual bool canLiveOutsideStorage() const override { return false; }
|
|
virtual TypePointer encodingType() const override
|
|
{
|
|
return std::make_shared<IntegerType>(256);
|
|
}
|
|
virtual TypePointer interfaceType(bool _inLibrary) const override
|
|
{
|
|
return _inLibrary ? shared_from_this() : TypePointer();
|
|
}
|
|
|
|
TypePointer const& keyType() const { return m_keyType; }
|
|
TypePointer const& valueType() const { return m_valueType; }
|
|
|
|
private:
|
|
TypePointer m_keyType;
|
|
TypePointer m_valueType;
|
|
};
|
|
|
|
/**
|
|
* The type of a type reference. The type of "uint32" when used in "a = uint32(2)" is an example
|
|
* of a TypeType.
|
|
* For super contracts or libraries, this has members directly.
|
|
*/
|
|
class TypeType: public Type
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::TypeType; }
|
|
explicit TypeType(TypePointer const& _actualType): m_actualType(_actualType) {}
|
|
TypePointer const& actualType() const { return m_actualType; }
|
|
|
|
virtual TypePointer binaryOperatorResult(Token::Value, TypePointer const&) const override { return TypePointer(); }
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual bool canBeStored() const override { return false; }
|
|
virtual u256 storageSize() const override;
|
|
virtual bool canLiveOutsideStorage() const override { return false; }
|
|
virtual unsigned sizeOnStack() const override;
|
|
virtual std::string toString(bool _short) const override { return "type(" + m_actualType->toString(_short) + ")"; }
|
|
virtual MemberList::MemberMap nativeMembers(ContractDefinition const* _currentScope) const override;
|
|
|
|
private:
|
|
TypePointer m_actualType;
|
|
};
|
|
|
|
|
|
/**
|
|
* The type of a function modifier. Not used for anything for now.
|
|
*/
|
|
class ModifierType: public Type
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::Modifier; }
|
|
explicit ModifierType(ModifierDefinition const& _modifier);
|
|
|
|
virtual TypePointer binaryOperatorResult(Token::Value, TypePointer const&) const override { return TypePointer(); }
|
|
virtual bool canBeStored() const override { return false; }
|
|
virtual u256 storageSize() const override;
|
|
virtual bool canLiveOutsideStorage() const override { return false; }
|
|
virtual unsigned sizeOnStack() const override { return 0; }
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual std::string toString(bool _short) const override;
|
|
|
|
private:
|
|
TypePointers m_parameterTypes;
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
* Special type for imported modules. These mainly give access to their scope via members.
|
|
*/
|
|
class ModuleType: public Type
|
|
{
|
|
public:
|
|
virtual Category category() const override { return Category::Module; }
|
|
|
|
explicit ModuleType(SourceUnit const& _source): m_sourceUnit(_source) {}
|
|
|
|
virtual TypePointer binaryOperatorResult(Token::Value, TypePointer const&) const override
|
|
{
|
|
return TypePointer();
|
|
}
|
|
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual bool canBeStored() const override { return false; }
|
|
virtual bool canLiveOutsideStorage() const override { return true; }
|
|
virtual unsigned sizeOnStack() const override { return 0; }
|
|
virtual MemberList::MemberMap nativeMembers(ContractDefinition const*) const override;
|
|
|
|
virtual std::string toString(bool _short) const override;
|
|
|
|
private:
|
|
SourceUnit const& m_sourceUnit;
|
|
};
|
|
|
|
/**
|
|
* Special type for magic variables (block, msg, tx), similar to a struct but without any reference
|
|
* (it always references a global singleton by name).
|
|
*/
|
|
class MagicType: public Type
|
|
{
|
|
public:
|
|
enum class Kind { Block, Message, Transaction };
|
|
virtual Category category() const override { return Category::Magic; }
|
|
|
|
explicit MagicType(Kind _kind): m_kind(_kind) {}
|
|
|
|
virtual TypePointer binaryOperatorResult(Token::Value, TypePointer const&) const override
|
|
{
|
|
return TypePointer();
|
|
}
|
|
|
|
virtual bool operator==(Type const& _other) const override;
|
|
virtual bool canBeStored() const override { return false; }
|
|
virtual bool canLiveOutsideStorage() const override { return true; }
|
|
virtual unsigned sizeOnStack() const override { return 0; }
|
|
virtual MemberList::MemberMap nativeMembers(ContractDefinition const*) const override;
|
|
|
|
virtual std::string toString(bool _short) const override;
|
|
|
|
private:
|
|
Kind m_kind;
|
|
};
|
|
|
|
}
|
|
}
|