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Change clearStorageLoop to TypePointer.

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This commit is contained in:
chriseth 2017-01-24 12:06:11 +01:00
parent 1b87e08e04
commit 23eca813f5
2 changed files with 18 additions and 16 deletions
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29
libsolidity/codegen/ArrayUtils.cpp
View File

@ -276,7 +276,7 @@ void ArrayUtils::copyArrayToStorage(ArrayType const& _targetType, ArrayType cons
// stack: target_ref target_data_end source_data_pos target_data_pos_updated source_data_end
_context << Instruction::POP << Instruction::SWAP1 << Instruction::POP;
// stack: target_ref target_data_end target_data_pos_updated
utils.clearStorageLoop(*targetBaseType);
utils.clearStorageLoop(targetBaseType);
_context << Instruction::POP;
}
);
@ -572,9 +572,9 @@ void ArrayUtils::clearArray(ArrayType const& _typeIn) const
ArrayUtils(_context).convertLengthToSize(_type);
_context << Instruction::ADD << Instruction::SWAP1;
if (_type.baseType()->storageBytes() < 32)
ArrayUtils(_context).clearStorageLoop(*make_shared<IntegerType>(256));
ArrayUtils(_context).clearStorageLoop(make_shared<IntegerType>(256));
else
ArrayUtils(_context).clearStorageLoop(*_type.baseType());
ArrayUtils(_context).clearStorageLoop(_type.baseType());
_context << Instruction::POP;
}
solAssert(_context.stackHeight() == stackHeightStart - 2, "");
@ -613,9 +613,9 @@ void ArrayUtils::clearDynamicArray(ArrayType const& _type) const
<< Instruction::SWAP1;
// stack: data_pos_end data_pos
if (_type.isByteArray() || _type.baseType()->storageBytes() < 32)
clearStorageLoop(*make_shared<IntegerType>(256));
clearStorageLoop(make_shared<IntegerType>(256));
else
clearStorageLoop(*_type.baseType());
clearStorageLoop(_type.baseType());
// cleanup
m_context << endTag;
m_context << Instruction::POP;
@ -720,7 +720,7 @@ void ArrayUtils::resizeDynamicArray(ArrayType const& _typeIn) const
ArrayUtils(_context).convertLengthToSize(_type);
_context << Instruction::DUP2 << Instruction::ADD << Instruction::SWAP1;
// stack: ref new_length current_length first_word data_location_end data_location
ArrayUtils(_context).clearStorageLoop(*make_shared<IntegerType>(256));
ArrayUtils(_context).clearStorageLoop(make_shared<IntegerType>(256));
_context << Instruction::POP;
// stack: ref new_length current_length first_word
solAssert(_context.stackHeight() - stackHeightStart == 4 - 2, "3");
@ -759,9 +759,9 @@ void ArrayUtils::resizeDynamicArray(ArrayType const& _typeIn) const
_context << Instruction::SWAP2 << Instruction::ADD;
// stack: ref new_length delete_end delete_start
if (_type.isByteArray() || _type.baseType()->storageBytes() < 32)
ArrayUtils(_context).clearStorageLoop(*make_shared<IntegerType>(256));
ArrayUtils(_context).clearStorageLoop(make_shared<IntegerType>(256));
else
ArrayUtils(_context).clearStorageLoop(*_type.baseType());
ArrayUtils(_context).clearStorageLoop(_type.baseType());
_context << resizeEnd;
// cleanup
@ -771,17 +771,16 @@ void ArrayUtils::resizeDynamicArray(ArrayType const& _typeIn) const
);
}
void ArrayUtils::clearStorageLoop(Type const& _type) const
void ArrayUtils::clearStorageLoop(TypePointer const& _type) const
{
TypePointer type = _type.shared_from_this();
m_context.callLowLevelFunction(
"$clearStorageLoop_" + _type.identifier(),
"$clearStorageLoop_" + _type->identifier(),
2,
1,
[type](CompilerContext& _context)
[_type](CompilerContext& _context)
{
unsigned stackHeightStart = _context.stackHeight();
if (type->category() == Type::Category::Mapping)
if (_type->category() == Type::Category::Mapping)
{
_context << Instruction::POP;
return;
@ -802,10 +801,10 @@ void ArrayUtils::clearStorageLoop(Type const& _type) const
_context.appendConditionalJumpTo(zeroLoopEnd);
// delete
_context << u256(0);
StorageItem(_context, *type).setToZero(SourceLocation(), false);
StorageItem(_context, *_type).setToZero(SourceLocation(), false);
_context << Instruction::POP;
// increment
_context << type->storageSize() << Instruction::ADD;
_context << _type->storageSize() << Instruction::ADD;
_context.appendJumpTo(loopStart);
// cleanup
_context << zeroLoopEnd;

5
libsolidity/codegen/ArrayUtils.h
View File

@ -22,6 +22,8 @@
#pragma once
#include <memory>
namespace dev
{
namespace solidity
@ -30,6 +32,7 @@ namespace solidity
class CompilerContext;
class Type;
class ArrayType;
using TypePointer = std::shared_ptr<Type const>;
/**
* Class that provides code generation for handling arrays.
@ -67,7 +70,7 @@ public:
/// Appends a loop that clears a sequence of storage slots of the given type (excluding end).
/// Stack pre: end_ref start_ref
/// Stack post: end_ref
void clearStorageLoop(Type const& _type) const;
void clearStorageLoop(TypePointer const& _type) const;
/// Converts length to size (number of storage slots or calldata/memory bytes).
/// if @a _pad then add padding to multiples of 32 bytes for calldata/memory.
/// Stack pre: length