Debugger: Adapt expression eval users to async interface.

Factor out message constant for expression evaluation completion,
as multiple places will be using that.

ExpressionEvaluationWindow:
- Check for expression match immediately in listener hook, and
  don't bother dispatching to the message loop in such a case.
  Simplifies some of the other code.

InspectorWindow / WatchPromptWindow:
- Rather than attempting to evaluate an expression directly,
  we now defer to the async interface. Clean up and adjust accordingly.

TeamWindow:
- Adjust window creation calls due to parameter changes.

This leaves only the CLI dump memory command to be adapted.

src/apps/debugger/MessageCodes.h

@@ -69,6 +69,7 @@ enum {
 	MSG_EXPRESSION_WINDOW_CLOSED				= 'ewwc',
 	MSG_INSPECT_ADDRESS							= 'isad',
 	MSG_EVALUATE_EXPRESSION						= 'evex',
+	MSG_EXPRESSION_EVALUATED					= 'exev',
 	MSG_SHOW_TYPECAST_NODE_PROMPT				= 'stnp',
 	MSG_TYPECAST_TO_ARRAY						= 'stta',
 	MSG_TYPECAST_NODE							= 'tyno',

src/apps/debugger/user_interface/gui/inspector_window/InspectorWindow.cpp

@@ -17,19 +17,20 @@
 #include <TextControl.h>
 
 #include "Architecture.h"
-#include "CLanguageExpressionEvaluator.h"
+#include "CppLanguage.h"
 #include "GuiTeamUiSettings.h"
 #include "MemoryView.h"
 #include "MessageCodes.h"
 #include "Number.h"
 #include "Team.h"
 #include "UserInterface.h"
+#include "Value.h"
 
 
 enum {
 	MSG_NAVIGATE_PREVIOUS_BLOCK 		= 'npbl',
 	MSG_NAVIGATE_NEXT_BLOCK				= 'npnl',
-	MSG_MEMORY_BLOCK_RETRIEVED			= 'mbre',
+	MSG_MEMORY_BLOCK_RETRIEVED			= 'mbre'
 };
 
 
@@ -46,8 +47,11 @@ InspectorWindow::InspectorWindow(::Team* team, UserInterfaceListener* listener,
 	fCurrentBlock(NULL),
 	fCurrentAddress(0LL),
 	fTeam(team),
+	fLanguage(NULL),
 	fTarget(target)
 {
+	AutoLocker< ::Team> teamLocker(fTeam);
+	fTeam->AddListener(this);
 }
 
 
@@ -57,6 +61,12 @@ InspectorWindow::~InspectorWindow()
 		fCurrentBlock->RemoveListener(this);
 		fCurrentBlock->ReleaseReference();
 	}
+
+	AutoLocker< ::Team> teamLocker(fTeam);
+	fTeam->RemoveListener(this);
+
+	if (fLanguage != NULL)
+		fLanguage->ReleaseReference();
 }
 
 
@@ -80,6 +90,8 @@ InspectorWindow::Create(::Team* team, UserInterfaceListener* listener,
 void
 InspectorWindow::_Init()
 {
+	fLanguage = new CppLanguage();
+
 	BScrollView* scrollView;
 
 	BMenu* hexMenu = new BMenu("Hex Mode");
@@ -197,45 +209,44 @@ InspectorWindow::MessageReceived(BMessage* message)
 		case MSG_INSPECT_ADDRESS:
 		{
 			target_addr_t address = 0;
-			bool addressValid = false;
 			if (message->FindUInt64("address", &address) != B_OK) {
-				CLanguageExpressionEvaluator evaluator;
-				const char* addressExpression = fAddressInput->Text();
-				BString errorMessage;
-				try {
-					Number value;
-					value = evaluator.Evaluate(addressExpression,
-						B_INT64_TYPE);
-					address = value.GetValue().ToUInt64();
-				} catch(ParseException parseError) {
-					errorMessage.SetToFormat("Failed to parse address: %s",
-						parseError.message.String());
-				} catch(...) {
-					errorMessage.SetToFormat(
-						"Unknown error while parsing address");
-				}
-
-				if (errorMessage.Length() > 0) {
-					BAlert* alert = new(std::nothrow) BAlert("Inspect Address",
-						errorMessage.String(), "Close");
-					if (alert != NULL)
-						alert->Go();
-				} else
-					addressValid = true;
-			} else {
-				addressValid = true;
-			}
-
-			if (addressValid) {
-				fCurrentAddress = address;
-				if (fCurrentBlock == NULL
-					|| !fCurrentBlock->Contains(address)) {
-					fListener->InspectRequested(address, this);
-				} else
-					fMemoryView->SetTargetAddress(fCurrentBlock, address);
-			}
+				fListener->ExpressionEvaluationRequested(
+					fLanguage,
+					fAddressInput->Text(),
+					B_UINT64_TYPE);
+			} else
+				_SetToAddress(address);
 			break;
 		}
+
+		case MSG_EXPRESSION_EVALUATED:
+		{
+			BString errorMessage;
+			BReference<Value> reference;
+			Value* value = NULL;
+			if (message->FindPointer("value",
+					reinterpret_cast<void**>(&value)) == B_OK) {
+				reference.SetTo(value, true);
+				BVariant variant;
+				value->ToVariant(variant);
+				if (variant.Type() == B_UINT64_TYPE) {
+					_SetToAddress(variant.ToUInt64());
+					break;
+				} else
+					value->ToString(errorMessage);
+			} else {
+				status_t result = message->FindInt32("result");
+				errorMessage.SetToFormat("Failed to evaluate expression: %s",
+					strerror(result));
+			}
+
+			BAlert* alert = new(std::nothrow) BAlert("Inspect Address",
+				errorMessage.String(), "Close");
+			if (alert != NULL)
+				alert->Go();
+			break;
+		}
+
 		case MSG_NAVIGATE_PREVIOUS_BLOCK:
 		case MSG_NAVIGATE_NEXT_BLOCK:
 		{
@@ -344,6 +355,32 @@ InspectorWindow::TargetAddressChanged(target_addr_t address)
 }
 
 
+void
+InspectorWindow::ExpressionEvaluated(
+	const Team::ExpressionEvaluationEvent& event)
+{
+	BMessage message(MSG_EXPRESSION_EVALUATED);
+	AutoLocker<BLooper> lock(this);
+	if (!lock.IsLocked())
+		return;
+
+	if (event.GetExpression() != fAddressInput->Text())
+		return;
+
+	lock.Unlock();
+	message.AddInt32("result", event.GetResult());
+	Value* value = event.GetValue();
+	BReference<Value> reference;
+	if (value != NULL) {
+		reference.SetTo(value);
+		message.AddPointer("value", value);
+	}
+
+	if (PostMessage(&message) == B_OK)
+		reference.Detach();
+}
+
+
 status_t
 InspectorWindow::LoadSettings(const GuiTeamUiSettings& settings)
 {
@@ -432,3 +469,15 @@ InspectorWindow::_SaveMenuFieldMode(BMenuField* field, const char* name,
 
 	return B_OK;
 }
+
+
+void
+InspectorWindow::_SetToAddress(target_addr_t address)
+{
+	fCurrentAddress = address;
+	if (fCurrentBlock == NULL
+		|| !fCurrentBlock->Contains(address)) {
+		fListener->InspectRequested(address, this);
+	} else
+		fMemoryView->SetTargetAddress(fCurrentBlock, address);
+}

src/apps/debugger/user_interface/gui/inspector_window/InspectorWindow.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013, Rene Gollent, [email protected]. All rights reserved.
+ * Copyright 2011-2014, Rene Gollent, [email protected]. All rights reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef INSPECTOR_WINDOW_H
@@ -9,6 +9,7 @@
 #include <Window.h>
 
 #include "MemoryView.h"
+#include "Team.h"
 #include "TeamMemoryBlock.h"
 #include "Types.h"
 
@@ -18,13 +19,14 @@ class BMenuField;
 class BMessenger;
 class BTextControl;
 class GuiTeamUiSettings;
-class Team;
+class SourceLanguage;
 class UserInterfaceListener;
 
 
 class InspectorWindow : public BWindow,
 	public TeamMemoryBlock::Listener,
-	public MemoryView::Listener {
+	public MemoryView::Listener,
+	private Team::Listener {
 public:
 								InspectorWindow(::Team* team,
 									UserInterfaceListener* listener,
@@ -47,10 +49,16 @@ public:
 	// MemoryView::Listener
 	virtual	void				TargetAddressChanged(target_addr_t address);
 
+	// Team::Listener
+	virtual	void				ExpressionEvaluated(
+									const Team::ExpressionEvaluationEvent&
+										event);
+
 			status_t			LoadSettings(
 									const GuiTeamUiSettings& settings);
 			status_t			SaveSettings(
 									BMessage& settings);
+
 private:
 	void						_Init();
 
@@ -61,6 +69,8 @@ private:
 									const char* name,
 									BMessage& settings);
 
+	void						_SetToAddress(target_addr_t address);
+
 private:
 	UserInterfaceListener*		fListener;
 	BTextControl*				fAddressInput;
@@ -73,6 +83,7 @@ private:
 	TeamMemoryBlock*			fCurrentBlock;
 	target_addr_t				fCurrentAddress;
 	::Team*						fTeam;
+	SourceLanguage*				fLanguage;
 	BHandler*					fTarget;
 };
 

src/apps/debugger/user_interface/gui/team_window/ExpressionEvaluationWindow.cpp

@@ -21,8 +21,7 @@
 
 
 enum {
-	MSG_CHANGE_EVALUATION_TYPE = 'chet',
-	MSG_EXPRESSION_EVALUATED = 'exev'
+	MSG_CHANGE_EVALUATION_TYPE = 'chet'
 };
 
 
@@ -164,9 +163,16 @@ ExpressionEvaluationWindow::ExpressionEvaluated(
 	const Team::ExpressionEvaluationEvent& event)
 {
 	BMessage message(MSG_EXPRESSION_EVALUATED);
-	message.AddString("expression", event.GetExpression());
-	message.AddInt32("result", event.GetResult());
 
+	AutoLocker<BLooper> lock(this);
+	if (!lock.IsLocked())
+		return;
+
+	if (event.GetExpression() != fExpressionInput->Text())
+		return;
+
+	lock.Unlock();
+	message.AddInt32("result", event.GetResult());
 	BReference<Value> reference;
 	Value* value = event.GetValue();
 	if (value != NULL) {
@@ -207,7 +213,7 @@ ExpressionEvaluationWindow::MessageReceived(BMessage* message)
 				break;
 
 			fListener->ExpressionEvaluationRequested(fLanguage,
-				fExpressionInput->TextView()->Text(), fCurrentEvaluationType);
+				fExpressionInput->Text(), fCurrentEvaluationType);
 			break;
 		}
 
@@ -219,13 +225,6 @@ ExpressionEvaluationWindow::MessageReceived(BMessage* message)
 
 		case MSG_EXPRESSION_EVALUATED:
 		{
-			BString expression;
-			if (message->FindString("expression", &expression) != B_OK)
-				break;
-
-			if (expression != fExpressionInput->TextView()->Text())
-				break;
-
 			Value* value = NULL;
 			BReference<Value> reference;
 			if (message->FindPointer("value",

src/apps/debugger/user_interface/gui/team_window/TeamWindow.cpp

@@ -408,7 +408,7 @@ TeamWindow::MessageReceived(BMessage* message)
 
 			try {
 				WatchPromptWindow* window = WatchPromptWindow::Create(
-					fTeam->GetArchitecture(), address, type, length,
+					fTeam, address, type, length,
 					fListener);
 				window->Show();
 			} catch (...) {

src/apps/debugger/user_interface/gui/team_window/WatchPromptWindow.cpp

@@ -13,45 +13,58 @@
 #include <String.h>
 #include <TextControl.h>
 
+#include "AutoLocker.h"
+
 #include "Architecture.h"
-#include "CLanguageExpressionEvaluator.h"
+#include "CppLanguage.h"
 #include "MessageCodes.h"
 #include "Number.h"
 #include "UserInterface.h"
+#include "Value.h"
 #include "Watchpoint.h"
 
 
-WatchPromptWindow::WatchPromptWindow(Architecture* architecture,
-	target_addr_t address, uint32 type, int32 length,
-	UserInterfaceListener* listener)
+WatchPromptWindow::WatchPromptWindow(::Team* team, target_addr_t address,
+	uint32 type, int32 length, UserInterfaceListener* listener)
 	:
 	BWindow(BRect(), "Edit Watchpoint", B_FLOATING_WINDOW,
 		B_AUTO_UPDATE_SIZE_LIMITS | B_CLOSE_ON_ESCAPE),
 	fInitialAddress(address),
 	fInitialType(type),
 	fInitialLength(length),
-	fArchitecture(architecture),
+	fTeam(team),
+	fRequestedAddress(0),
+	fRequestedLength(0),
 	fAddressInput(NULL),
 	fLengthInput(NULL),
 	fTypeField(NULL),
-	fListener(listener)
+	fListener(listener),
+	fLanguage(NULL)
 {
-	fArchitecture->AcquireReference();
+	AutoLocker< ::Team> teamLocker(fTeam);
+	fTeam->AddListener(this);
+	fTeam->GetArchitecture()->AcquireReference();
 }
 
 
 WatchPromptWindow::~WatchPromptWindow()
 {
-	fArchitecture->ReleaseReference();
+	fTeam->GetArchitecture()->ReleaseReference();
+
+	AutoLocker< ::Team> teamLocker(fTeam);
+	fTeam->RemoveListener(this);
+
+	if (fLanguage != NULL)
+		fLanguage->ReleaseReference();
 }
 
 
 WatchPromptWindow*
-WatchPromptWindow::Create(Architecture* architecture, target_addr_t address,
-	uint32 type, int32 length, UserInterfaceListener* listener)
+WatchPromptWindow::Create(::Team* team, target_addr_t address, uint32 type,
+	int32 length, UserInterfaceListener* listener)
 {
-	WatchPromptWindow* self = new WatchPromptWindow(architecture, address,
-		type, length, listener);
+	WatchPromptWindow* self = new WatchPromptWindow(team, address, type,
+		length, listener);
 
 	try {
 		self->_Init();
@@ -68,6 +81,8 @@ WatchPromptWindow::Create(Architecture* architecture, target_addr_t address,
 void
 WatchPromptWindow::_Init()
 {
+	fLanguage = new CppLanguage();
+
 	BString text;
 	text.SetToFormat("0x%" B_PRIx64, fInitialAddress);
 	fAddressInput = new BTextControl("Address:", text, NULL);
@@ -78,7 +93,7 @@ WatchPromptWindow::_Init()
 	int32 maxDebugRegisters = 0;
 	int32 maxBytesPerRegister = 0;
 	uint8 debugCapabilityFlags = 0;
-	fArchitecture->GetWatchpointDebugCapabilities(maxDebugRegisters,
+	fTeam->GetArchitecture()->GetWatchpointDebugCapabilities(maxDebugRegisters,
 		maxBytesPerRegister, debugCapabilityFlags);
 
 	BMenu* typeMenu = new BMenu("Watch type");
@@ -135,31 +150,65 @@ WatchPromptWindow::Show()
 }
 
 
+void
+WatchPromptWindow::ExpressionEvaluated(
+	const Team::ExpressionEvaluationEvent& event)
+{
+	BMessage message(MSG_EXPRESSION_EVALUATED);
+	AutoLocker<BLooper> lock(this);
+	if (!lock.IsLocked())
+		return;
+
+	BString expression = event.GetExpression();
+	if (expression != fAddressInput->Text()
+		&& expression != fLengthInput->Text()) {
+		return;
+	}
+
+	lock.Unlock();
+	message.AddInt32("result", event.GetResult());
+	Value* value = event.GetValue();
+	BReference<Value> reference;
+	if (value != NULL) {
+		reference.SetTo(value);
+		message.AddPointer("value", value);
+	}
+
+	if (PostMessage(&message) == B_OK)
+		reference.Detach();
+}
+
+
 void
 WatchPromptWindow::MessageReceived(BMessage* message)
 {
 	switch (message->what) {
-		case MSG_SET_WATCHPOINT:
+		case MSG_EXPRESSION_EVALUATED:
 		{
-			target_addr_t address = 0;
-			int32 length = 0;
-			CLanguageExpressionEvaluator evaluator;
 			BString errorMessage;
-			try {
-				Number value = evaluator.Evaluate(fAddressInput->Text(),
-					B_UINT64_TYPE);
-				address = value.GetValue().ToUInt64();
-				value = evaluator.Evaluate(fLengthInput->Text(),
-					B_INT32_TYPE);
-				length = value.GetValue().ToInt32();
-			} catch(ParseException parseError) {
-				errorMessage.SetToFormat("Failed to parse data: %s",
-					parseError.message.String());
-			} catch(...) {
-				errorMessage.SetToFormat(
-					"Unknown error while parsing address");
+			BReference<Value> reference;
+			Value* value = NULL;
+			if (message->FindPointer("value",
+					reinterpret_cast<void**>(&value)) == B_OK) {
+				reference.SetTo(value, true);
+				BVariant variant;
+				value->ToVariant(variant);
+				if (variant.Type() == B_UINT64_TYPE) {
+					fRequestedAddress = variant.ToUInt64();
+					break;
+				} else if (variant.Type() == B_INT32_TYPE)
+					fRequestedLength = variant.ToInt32();
+				else
+					value->ToString(errorMessage);
+			} else {
+				status_t result = message->FindInt32("result");
+				errorMessage.SetToFormat("Failed to evaluate expression: %s",
+					strerror(result));
 			}
 
+			if (fRequestedLength <= 0)
+				errorMessage = "Watchpoint length must be at least 1 byte.";
+
 			if (!errorMessage.IsEmpty()) {
 				BAlert* alert = new(std::nothrow) BAlert("Edit Watchpoint",
 					errorMessage.String(), "Close");
@@ -169,13 +218,27 @@ WatchPromptWindow::MessageReceived(BMessage* message)
 			}
 
 			fListener->ClearWatchpointRequested(fInitialAddress);
-			fListener->SetWatchpointRequested(address, fTypeField->Menu()
-					->IndexOf(fTypeField->Menu()->FindMarked()), length, true);
+			fListener->SetWatchpointRequested(fRequestedAddress,
+				fTypeField->Menu()->IndexOf(fTypeField->Menu()->FindMarked()),
+				fRequestedLength, true);
 
 			PostMessage(B_QUIT_REQUESTED);
-
 			break;
 		}
+
+		case MSG_SET_WATCHPOINT:
+		{
+			fRequestedAddress = 0;
+			fRequestedLength = 0;
+
+			fListener->ExpressionEvaluationRequested(fLanguage,
+				fAddressInput->Text(), B_UINT64_TYPE);
+
+			fListener->ExpressionEvaluationRequested(fLanguage,
+				fLengthInput->Text(), B_INT32_TYPE);
+			break;
+		}
+
 		default:
 			BWindow::MessageReceived(message);
 			break;

src/apps/debugger/user_interface/gui/team_window/WatchPromptWindow.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012, Rene Gollent, rene@gollent.com.
+ * Copyright 2012-2014, Rene Gollent, rene@gollent.com.
  * Distributed under the terms of the MIT License.
  */
 #ifndef WATCH_PROMPT_WINDOW_H
@@ -8,27 +8,28 @@
 
 #include <Window.h>
 
+#include "Team.h"
 #include "types/Types.h"
 
 
-class Architecture;
-class BTextControl;
-class Watchpoint;
 class BMenuField;
+class BTextControl;
+class SourceLanguage;
+class Watchpoint;
 class UserInterfaceListener;
 
 
-class WatchPromptWindow : public BWindow
+class WatchPromptWindow : public BWindow, private Team::Listener
 {
 public:
-								WatchPromptWindow(Architecture* architecture,
+								WatchPromptWindow(::Team* team,
 									target_addr_t address, uint32 type,
 									int32 length,
 									UserInterfaceListener* listener);
 
 								~WatchPromptWindow();
 
-	static	WatchPromptWindow*	Create(Architecture* architecture,
+	static	WatchPromptWindow*	Create(::Team* team,
 									target_addr_t address, uint32 type,
 									int32 length,
 									UserInterfaceListener* listener);
@@ -39,6 +40,11 @@ public:
 
 	virtual	void				Show();
 
+	// Team::Listener
+	virtual	void				ExpressionEvaluated(
+									const Team::ExpressionEvaluationEvent&
+										event);
+
 private:
 			void	 			_Init();
 
@@ -47,13 +53,16 @@ private:
 			target_addr_t		fInitialAddress;
 			uint32				fInitialType;
 			int32				fInitialLength;
-			Architecture*		fArchitecture;
+			::Team*				fTeam;
+			target_addr_t		fRequestedAddress;
+			int32				fRequestedLength;
 			BTextControl*		fAddressInput;
 			BTextControl*		fLengthInput;
 			BMenuField*			fTypeField;
 			UserInterfaceListener* fListener;
 			BButton*			fWatchButton;
 			BButton*			fCancelButton;
+			SourceLanguage*		fLanguage;
 };
 
 #endif // WATCH_PROMPT_WINDOW_H