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debug support refactoring

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This commit is contained in:
Shu Lei
2007-10-17 00:56:08 +00:00
parent 70442348a1
commit a8422a6908
9 changed files with 510 additions and 368 deletions
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92
src/main/java/lua/debug/DebugStackState.java
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@@ -21,7 +21,10 @@
******************************************************************************/
package lua.debug;
import java.io.IOException;
import java.util.Hashtable;
import java.util.Timer;
import java.util.TimerTask;
import java.util.Vector;
import lua.CallInfo;
@@ -30,7 +33,7 @@ import lua.StackState;
import lua.addon.compile.LexState;
import lua.debug.event.DebugEvent;
import lua.debug.event.DebugEventBreakpoint;
import lua.debug.event.DebugEventListener;
import lua.debug.event.DebugEventType;
import lua.debug.request.DebugRequest;
import lua.debug.request.DebugRequestLineBreakpointToggle;
import lua.debug.request.DebugRequestListener;
@@ -40,6 +43,7 @@ import lua.debug.response.DebugResponse;
import lua.debug.response.DebugResponseCallgraph;
import lua.debug.response.DebugResponseSimple;
import lua.debug.response.DebugResponseStack;
import lua.io.Closure;
import lua.io.LocVars;
import lua.io.Proto;
import lua.value.LTable;
@@ -54,34 +58,24 @@ public class DebugStackState extends StackState implements DebugRequestListener
protected boolean suspended = false;
protected boolean stepping = false;
protected int lastline = -1;
protected Vector debugEventListeners = new Vector();
protected DebugSupport debugSupport = null;
public DebugStackState() {}
public DebugStackState() {
public void setDebugSupport(DebugSupport debugSupport) throws IOException {
if (debugSupport == null) {
throw new IllegalArgumentException("DebugSupport cannot be null");
}
this.debugSupport = debugSupport;
debugSupport.setDebugStackState(this);
debugSupport.start();
}
protected void debugAssert(boolean b) {
if ( ! b )
error( "assert failure" );
}
public void addDebugEventListener(DebugEventListener listener) {
if (!debugEventListeners.contains(listener)) {
debugEventListeners.addElement(listener);
}
}
public void removeDebugEventListener(DebugEventListener listener) {
if (debugEventListeners.contains(listener)) {
debugEventListeners.removeElement(listener);
}
}
protected void notifyDebugEventListeners(DebugEvent event) {
for (int i = 0; debugEventListeners != null && i < debugEventListeners.size(); i++) {
DebugEventListener listener = (DebugEventListener)debugEventListeners.elementAt(i);
listener.notifyDebugEvent(event);
}
}
private String getFileLine(int cindex) {
String func = "?";
@@ -157,10 +151,12 @@ public class DebugStackState extends StackState implements DebugRequestListener
Proto p = calls[cc].closure.p;
String source = DebugUtils.getSourceFileName(p.source);
if ( breakpoints.containsKey(constructBreakpointKey(source, line))){
if(DebugUtils.IS_DEBUG)
if(DebugUtils.IS_DEBUG) {
DebugUtils.println("hitting breakpoint " + constructBreakpointKey(source, line));
notifyDebugEventListeners(
new DebugEventBreakpoint(source, line));
}
if (debugSupport != null) {
debugSupport.notifyDebugEvent(new DebugEventBreakpoint(source, line));
}
suspended = true;
} else {
return;
@@ -195,16 +191,28 @@ public class DebugStackState extends StackState implements DebugRequestListener
// ------------------ commands coming from the debugger -------------------
public DebugResponse handleRequest(DebugRequest request) {
if (this.debugSupport == null) {
throw new IllegalStateException("DebugStackState is not equiped with DebugSupport.");
}
DebugUtils.println("DebugStackState is handling request: " + request.toString());
DebugRequestType requestType = request.getType();
if (DebugRequestType.suspend == requestType) {
suspend();
DebugRequestType requestType = request.getType();
if (DebugRequestType.start == requestType) {
DebugEvent event = new DebugEvent(DebugEventType.started);
debugSupport.notifyDebugEvent(event);
return DebugResponseSimple.SUCCESS;
} else if (DebugRequestType.exit == requestType) {
stop();
return DebugResponseSimple.SUCCESS;
} else if (DebugRequestType.suspend == requestType) {
suspend();
DebugEvent event = new DebugEvent(DebugEventType.suspendedByClient);
debugSupport.notifyDebugEvent(event);
return DebugResponseSimple.SUCCESS;
} else if (DebugRequestType.resume == requestType) {
resume();
return DebugResponseSimple.SUCCESS;
} else if (DebugRequestType.exit == requestType) {
exit();
resume();
DebugEvent event = new DebugEvent(DebugEventType.resumedByClient);
debugSupport.notifyDebugEvent(event);
return DebugResponseSimple.SUCCESS;
} else if (DebugRequestType.lineBreakpointSet == requestType) {
DebugRequestLineBreakpointToggle setBreakpointRequest
@@ -252,7 +260,25 @@ public class DebugStackState extends StackState implements DebugRequestListener
this.notify();
}
}
public void stop() {
if (this.debugSupport == null) {
throw new IllegalStateException("DebugStackState is not equiped with DebugSupport.");
}
DebugEvent event = new DebugEvent(DebugEventType.terminated);
debugSupport.notifyDebugEvent(event);
new Timer().schedule(new TimerTask() {
public void run () {
debugSupport.stop();
debugSupport = null;
}
}, 300);
exit();
}
/**
* terminate the execution
*/