Files
clang-p2996/lldb/source/Core/ValueObjectCast.cpp
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

95 lines
3.3 KiB
C++

//===-- ValueObjectCast.cpp -------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Core/ValueObjectCast.h"
#include "lldb/Core/Value.h"
#include "lldb/Core/ValueObject.h"
#include "lldb/Symbol/CompilerType.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Utility/Scalar.h"
#include "lldb/Utility/Status.h"
namespace lldb_private {
class ConstString;
}
using namespace lldb_private;
lldb::ValueObjectSP ValueObjectCast::Create(ValueObject &parent,
const ConstString &name,
const CompilerType &cast_type) {
ValueObjectCast *cast_valobj_ptr =
new ValueObjectCast(parent, name, cast_type);
return cast_valobj_ptr->GetSP();
}
ValueObjectCast::ValueObjectCast(ValueObject &parent, const ConstString &name,
const CompilerType &cast_type)
: ValueObject(parent), m_cast_type(cast_type) {
SetName(name);
// m_value.SetContext (Value::eContextTypeClangType,
// cast_type.GetOpaqueQualType());
m_value.SetCompilerType(cast_type);
}
ValueObjectCast::~ValueObjectCast() {}
CompilerType ValueObjectCast::GetCompilerTypeImpl() { return m_cast_type; }
size_t ValueObjectCast::CalculateNumChildren(uint32_t max) {
ExecutionContext exe_ctx(GetExecutionContextRef());
auto children_count = GetCompilerType().GetNumChildren(
true, &exe_ctx);
return children_count <= max ? children_count : max;
}
uint64_t ValueObjectCast::GetByteSize() {
ExecutionContext exe_ctx(GetExecutionContextRef());
return m_value.GetValueByteSize(nullptr, &exe_ctx);
}
lldb::ValueType ValueObjectCast::GetValueType() const {
// Let our parent answer global, local, argument, etc...
return m_parent->GetValueType();
}
bool ValueObjectCast::UpdateValue() {
SetValueIsValid(false);
m_error.Clear();
if (m_parent->UpdateValueIfNeeded(false)) {
Value old_value(m_value);
m_update_point.SetUpdated();
m_value = m_parent->GetValue();
CompilerType compiler_type(GetCompilerType());
// m_value.SetContext (Value::eContextTypeClangType, compiler_type);
m_value.SetCompilerType(compiler_type);
SetAddressTypeOfChildren(m_parent->GetAddressTypeOfChildren());
if (!CanProvideValue()) {
// this value object represents an aggregate type whose children have
// values, but this object does not. So we say we are changed if our
// location has changed.
SetValueDidChange(m_value.GetValueType() != old_value.GetValueType() ||
m_value.GetScalar() != old_value.GetScalar());
}
ExecutionContext exe_ctx(GetExecutionContextRef());
m_error = m_value.GetValueAsData(&exe_ctx, m_data, 0, GetModule().get());
SetValueDidChange(m_parent->GetValueDidChange());
return true;
}
// The dynamic value failed to get an error, pass the error along
if (m_error.Success() && m_parent->GetError().Fail())
m_error = m_parent->GetError();
SetValueIsValid(false);
return false;
}
bool ValueObjectCast::IsInScope() { return m_parent->IsInScope(); }