187 lines
7 KiB
C++
187 lines
7 KiB
C++
/*
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "VariablesModel.h"
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#include <LibGUI/Application.h>
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#include <LibGUI/MessageBox.h>
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GUI::ModelIndex VariablesModel::index(int row, int column, const GUI::ModelIndex& parent_index) const
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{
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if (!parent_index.is_valid())
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return create_index(row, column, &m_variables[row]);
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auto* parent = static_cast<const DebugInfo::VariableInfo*>(parent_index.internal_data());
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auto* child = &parent->members[row];
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return create_index(row, column, child);
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}
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GUI::ModelIndex VariablesModel::parent_index(const GUI::ModelIndex& index) const
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{
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if (!index.is_valid())
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return {};
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auto* child = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
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auto* parent = child->parent;
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if (parent == nullptr)
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return {};
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if (parent->parent == nullptr) {
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for (size_t row = 0; row < m_variables.size(); row++)
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if (m_variables.ptr_at(row).ptr() == parent)
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return create_index(row, 0, parent);
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ASSERT_NOT_REACHED();
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}
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for (size_t row = 0; row < parent->parent->members.size(); row++) {
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DebugInfo::VariableInfo* child_at_row = parent->parent->members.ptr_at(row).ptr();
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if (child_at_row == parent)
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return create_index(row, 0, parent);
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}
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ASSERT_NOT_REACHED();
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}
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int VariablesModel::row_count(const GUI::ModelIndex& index) const
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{
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if (!index.is_valid())
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return m_variables.size();
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auto* node = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
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return node->members.size();
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}
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String variable_value_as_string(const DebugInfo::VariableInfo& variable)
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{
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if (variable.location_type != DebugInfo::VariableInfo::LocationType::Address)
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return "N/A";
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auto variable_address = variable.location_data.address;
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if (variable.is_enum_type()) {
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auto value = Debugger::the().session()->peek((u32*)variable_address);
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ASSERT(value.has_value());
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auto it = variable.type->members.find([enumerator_value = value.value()](auto& enumerator) {
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return enumerator->constant_data.as_u32 == enumerator_value;
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});
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ASSERT(!it.is_end());
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return String::format("%s::%s", variable.type_name.characters(), (*it)->name.characters());
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}
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if (variable.type_name == "int") {
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auto value = Debugger::the().session()->peek((u32*)variable_address);
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ASSERT(value.has_value());
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return String::format("%d", static_cast<int>(value.value()));
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}
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if (variable.type_name == "char") {
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auto value = Debugger::the().session()->peek((u32*)variable_address);
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ASSERT(value.has_value());
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return String::format("'%c' (%d)", static_cast<char>(value.value()), static_cast<char>(value.value()));
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}
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if (variable.type_name == "bool") {
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auto value = Debugger::the().session()->peek((u32*)variable_address);
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ASSERT(value.has_value());
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return (value.value() & 1) ? "true" : "false";
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}
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return String::format("type: %s @ %08x, ", variable.type_name.characters(), variable_address);
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}
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static Optional<u32> string_to_variable_value(const StringView& string_value, const DebugInfo::VariableInfo& variable)
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{
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if (variable.is_enum_type()) {
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auto prefix_string = String::format("%s::", variable.type_name.characters());
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auto string_to_use = string_value;
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if (string_value.starts_with(prefix_string))
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string_to_use = string_value.substring_view(prefix_string.length(), string_value.length() - prefix_string.length());
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auto it = variable.type->members.find([string_to_use](auto& enumerator) {
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return enumerator->name == string_to_use;
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});
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if (it.is_end())
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return {};
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return (*it)->constant_data.as_u32;
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}
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if (variable.type_name == "int") {
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bool success = false;
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auto value = string_value.to_int(success);
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return success ? value : Optional<u32>();
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}
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if (variable.type_name == "bool") {
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if (string_value == "true")
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return true;
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if (string_value == "false")
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return false;
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return {};
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}
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return {};
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}
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void VariablesModel::set_variable_value(const GUI::ModelIndex& index, const StringView& string_value, GUI::Window* parent_window)
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{
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auto variable = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
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auto value = string_to_variable_value(string_value, *variable);
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if (value.has_value()) {
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auto success = Debugger::the().session()->poke((u32*)variable->location_data.address, value.value());
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ASSERT(success);
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return;
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}
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GUI::MessageBox::show(
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String::format("String value \"%s\" could not be converted to a value of type %s.", string_value.to_string().characters(), variable->type_name.characters()),
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"Set value failed",
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GUI::MessageBox::Type::Error,
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GUI::MessageBox::InputType::OK,
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parent_window);
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}
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GUI::Variant VariablesModel::data(const GUI::ModelIndex& index, Role role) const
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{
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auto* variable = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
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switch (role) {
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case Role::Display: {
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auto value_as_string = variable_value_as_string(*variable);
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return String::format("%s: %s", variable->name.characters(), value_as_string.characters());
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}
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case Role::Icon:
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return m_variable_icon;
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default:
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return {};
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}
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}
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void VariablesModel::update()
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{
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did_update();
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}
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RefPtr<VariablesModel> VariablesModel::create(const PtraceRegisters& regs)
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{
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auto variables = Debugger::the().session()->debug_info().get_variables_in_current_scope(regs);
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return adopt(*new VariablesModel(move(variables), regs));
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}
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