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b71f384455
bool ValueObject::GetIsConstant() const;
void ValueObject::SetIsConstant();
This will stop anything from being re-evaluated within the value object so
that constant result value objects can maintain their frozen values without
anything being updated or changed within the value object.
Made it so the ValueObjectConstResult can be constructed with an
lldb_private::Error object to allow for expression results to have errors.
Since ValueObject objects contain error objects, I changed the expression
evaluation in ClangUserExpression from
static Error
ClangUserExpression::Evaluate (ExecutionContext &exe_ctx,
const char *expr_cstr,
lldb::ValueObjectSP &result_valobj_sp);
to:
static lldb::ValueObjectSP
Evaluate (ExecutionContext &exe_ctx, const char *expr_cstr);
Even though expression parsing is borked right now (pending fixes coming from
Sean Callanan), I filled in the implementation for:
SBValue SBFrame::EvaluateExpression (const char *expr);
Modified all expression code to deal with the above changes.
llvm-svn: 115589
120 lines
2.8 KiB
C++
120 lines
2.8 KiB
C++
//===-- ValueObjectConstResult.cpp ------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Core/ValueObjectConstResult.h"
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#include "lldb/Core/DataExtractor.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/ValueObjectList.h"
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#include "lldb/Symbol/ClangASTType.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Symbol/SymbolContext.h"
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#include "lldb/Symbol/Type.h"
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#include "lldb/Symbol/Variable.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/Target.h"
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using namespace lldb;
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using namespace lldb_private;
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ValueObjectConstResult::ValueObjectConstResult
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(
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clang::ASTContext *clang_ast,
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void *clang_type,
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const ConstString &name,
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const lldb::DataBufferSP &data_sp,
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lldb::ByteOrder data_byte_order,
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uint8_t data_addr_size
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) :
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ValueObject (),
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m_clang_ast (clang_ast),
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m_type_name ()
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{
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m_data.SetByteOrder(data_byte_order);
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m_data.SetAddressByteSize(data_addr_size);
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m_data.SetData(data_sp);
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m_value.GetScalar() = (uintptr_t)data_sp->GetBytes();
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m_value.SetValueType(Value::eValueTypeHostAddress);
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m_value.SetContext(Value::eContextTypeOpaqueClangQualType, clang_type);
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m_name = name;
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SetIsConstant ();
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}
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ValueObjectConstResult::ValueObjectConstResult (const Error& error) :
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ValueObject (),
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m_clang_ast (NULL),
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m_type_name ()
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{
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m_error = error;
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SetIsConstant ();
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}
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ValueObjectConstResult::~ValueObjectConstResult()
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{
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}
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void *
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ValueObjectConstResult::GetClangType()
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{
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return m_value.GetClangType();
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}
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lldb::ValueType
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ValueObjectConstResult::GetValueType() const
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{
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return eValueTypeConstResult;
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}
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size_t
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ValueObjectConstResult::GetByteSize()
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{
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// We stored all the data for this const object in our data
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return m_data.GetByteSize();
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}
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uint32_t
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ValueObjectConstResult::CalculateNumChildren()
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{
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return ClangASTContext::GetNumChildren (GetClangType(), true);
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}
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clang::ASTContext *
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ValueObjectConstResult::GetClangAST ()
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{
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return m_clang_ast;
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}
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ConstString
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ValueObjectConstResult::GetTypeName()
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{
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if (m_type_name.IsEmpty())
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m_type_name = ClangASTType::GetClangTypeName (GetClangType());
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return m_type_name;
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}
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void
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ValueObjectConstResult::UpdateValue (ExecutionContextScope *exe_scope)
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{
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m_error.Clear();
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// Const value is always valid
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SetValueIsValid (true);
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}
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bool
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ValueObjectConstResult::IsInScope (StackFrame *frame)
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{
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// A const result value is always in scope since it serializes all
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// information needed to contain the constant value.
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return true;
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}
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