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6f20f49b21
PropertyKey used to be called PropertyName, but got renamed. Let's update all the variables of this type as well.
115 lines
4.3 KiB
C++
115 lines
4.3 KiB
C++
/*
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* Copyright (c) 2021, Hunter Salyer <thefalsehonesty@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "DebuggerGlobalJSObject.h"
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#include "Debugger.h"
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#include "DebuggerVariableJSObject.h"
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibJS/Runtime/ProxyObject.h>
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namespace HackStudio {
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DebuggerGlobalJSObject::DebuggerGlobalJSObject()
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{
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auto regs = Debugger::the().session()->get_registers();
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auto lib = Debugger::the().session()->library_at(regs.ip());
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if (!lib)
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return;
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m_variables = lib->debug_info->get_variables_in_current_scope(regs);
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}
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JS::ThrowCompletionOr<JS::Value> DebuggerGlobalJSObject::internal_get(JS::PropertyKey const& property_key, JS::Value receiver) const
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{
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if (m_variables.is_empty() || !property_key.is_string())
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return Base::internal_get(property_key, receiver);
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auto it = m_variables.find_if([&](auto& variable) {
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return variable->name == property_key.as_string();
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});
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if (it.is_end())
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return Base::internal_get(property_key, receiver);
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auto& target_variable = **it;
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auto js_value = debugger_to_js(target_variable);
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if (js_value.has_value())
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return js_value.value();
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auto error_string = String::formatted("Variable {} of type {} is not convertible to a JS Value", property_key.as_string(), target_variable.type_name);
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return vm().throw_completion<JS::TypeError>(const_cast<DebuggerGlobalJSObject&>(*this), move(error_string));
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}
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JS::ThrowCompletionOr<bool> DebuggerGlobalJSObject::internal_set(JS::PropertyKey const& property_key, JS::Value value, JS::Value receiver)
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{
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if (m_variables.is_empty() || !property_key.is_string())
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return Base::internal_set(property_key, value, receiver);
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auto it = m_variables.find_if([&](auto& variable) {
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return variable->name == property_key.as_string();
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});
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if (it.is_end())
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return Base::internal_set(property_key, value, receiver);
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auto& target_variable = **it;
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auto debugger_value = js_to_debugger(value, target_variable);
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if (debugger_value.has_value())
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return Debugger::the().session()->poke(target_variable.location_data.address, debugger_value.value());
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auto error_string = String::formatted("Cannot convert JS value {} to variable {} of type {}", value.to_string_without_side_effects(), property_key.as_string(), target_variable.type_name);
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return vm().throw_completion<JS::TypeError>(const_cast<DebuggerGlobalJSObject&>(*this), move(error_string));
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}
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Optional<JS::Value> DebuggerGlobalJSObject::debugger_to_js(const Debug::DebugInfo::VariableInfo& variable) const
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{
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if (variable.location_type != Debug::DebugInfo::VariableInfo::LocationType::Address)
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return {};
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auto variable_address = variable.location_data.address;
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if (variable.is_enum_type() || variable.type_name == "int") {
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auto value = Debugger::the().session()->peek(variable_address);
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VERIFY(value.has_value());
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return JS::Value((i32)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(variable_address);
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VERIFY(value.has_value());
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return JS::Value((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(variable_address);
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VERIFY(value.has_value());
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return JS::Value(value.value() != 0);
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}
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auto* object = DebuggerVariableJSObject::create(const_cast<DebuggerGlobalJSObject&>(*this), variable);
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for (auto& member : variable.members) {
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auto member_value = debugger_to_js(member);
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if (!member_value.has_value())
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continue;
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object->define_direct_property(member.name, member_value.value(), JS::default_attributes);
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}
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return JS::Value(object);
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}
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Optional<u32> DebuggerGlobalJSObject::js_to_debugger(JS::Value value, const Debug::DebugInfo::VariableInfo& variable) const
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{
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if (value.is_string() && variable.type_name == "char") {
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auto string = value.as_string().string();
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if (string.length() != 1)
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return {};
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return string[0];
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}
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if (value.is_number() && (variable.is_enum_type() || variable.type_name == "int"))
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return value.as_u32();
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if (value.is_boolean() && variable.type_name == "bool")
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return value.as_bool();
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return {};
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}
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}
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