1) Added a vector for storing the variables.
[phpeclipse.git] / net.sourceforge.phpeclipse.debug.core / src / net / sourceforge / phpdt / internal / debug / core / model / PHPStackFrame.java
index 2e1d71f..a819140 100644 (file)
@@ -11,6 +11,10 @@ Contributors:
 **********************************************************************/
 package net.sourceforge.phpdt.internal.debug.core.model;
 
+import java.util.Vector;
+
+import net.sourceforge.phpdt.internal.debug.core.PHPDBGProxy;
+
 import org.eclipse.debug.core.DebugEvent;
 import org.eclipse.debug.core.DebugException;
 import org.eclipse.debug.core.DebugPlugin;
@@ -20,83 +24,168 @@ import org.eclipse.debug.core.model.IRegisterGroup;
 import org.eclipse.debug.core.model.IStackFrame;
 import org.eclipse.debug.core.model.IThread;
 import org.eclipse.debug.core.model.IVariable;
-import net.sourceforge.phpdt.internal.debug.core.PHPDBGProxy;
-import net.sourceforge.phpdt.internal.debug.core.model.PHPDebugTarget;
 
-public class PHPStackFrame implements IStackFrame {
+/**
+ *
+ * TODO Remove the variables array and use only the varList vector
+ *      Have also to change hasVariables
+ */
+public class PHPStackFrame extends PHPDebugElement implements IStackFrame, Comparable{
 
-       private PHPThread thread;
-       private String file;
-       private int lineNumber;
-       private int index;
-       private int modno;
-       private PHPVariable[] variables;
-       private String description;
+       private PHPThread               thread;                         // The thread to which this stackframe belongs
+       private String                  file;               // The file name???
+       private int                     lineNumber;         //
+       private int                     index;              //
+       private int                     modno;              //
+       private PHPVariable[]   variables;          // The array of variables TODO: better introduce a vector?
+       private Vector          varList  = new Vector ();
+       private String                  description;        //
 
-       public PHPStackFrame(PHPThread thread, String file, int line, int index, String desc, int modno) {
-               this.lineNumber = line;
-               this.index = index;
-               this.file = file;
-               this.thread = thread;
+       /**
+        *
+        * @param thread
+        * @param file
+        * @param line
+        * @param index
+        * @param desc
+        * @param modno
+        */
+       public PHPStackFrame (PHPThread thread, String file, int line, int index, String desc, int modno) {
+               super (null);
+
+               this.lineNumber  = line;
+               this.index           = index;
+               this.file            = file;
+               this.thread      = thread;
                this.description = desc;
-               this.modno = modno;
-       } 
-       
-       public PHPStackFrame(PHPThread thread, String file, int line, int index) {
+               this.modno               = modno;
+       }
+
+       /**
+        *
+        * @param thread
+        * @param file
+        * @param line
+        * @param index
+        */
+       public PHPStackFrame (PHPThread thread, String file, int line, int index) {
+               super (null);
+
                this.lineNumber = line;
-               this.index = index;
-               this.file = file;
-               this.thread = thread;
-       } 
-       
-       public IThread getThread() {
+               this.index              = index;
+               this.file               = file;
+               this.thread     = thread;
+       }
+
+       /**
+        *
+        */
+       public IThread getThread () {
                return thread;
        }
-       
-       public void setThread(PHPThread thread) {
+
+       /**
+        * @param thread
+        */
+       public void setThread (PHPThread thread) {
                this.thread = thread;
        }
-       
+
+       /**
+        *
+        * This function returns the array of PHPVariables for this stackframe
+        * The PHPVariables should not change (newly build up) between two steps
+        * (or breaks).
+        * A PHPVariable with the same name but with different object ID is
+        * handled as a new variable.
+        *
+        * TODO Remove the intermediate storage array
+        *
+        * @return The array of PHPVariables for this stackframe.
+        */
        public IVariable[] getVariables() throws DebugException {
-               if (variables == null) {
-                       variables = this.getPHPDBGProxy().readVariables(this);
-               }
-               return variables;
-       }
-       
-       public IVariable findVariable(String s) throws DebugException {
-               if (this.hasVariables()) {
-                       String name="$"+s;
-                       for(int i= 0; i < variables.length; i++) {
-                               String n= variables[i].getName();
-                               if((variables[i].getName()).equals(name))
-                                       return variables[i];
+               //PHPVariable[] variablesNew;                                 // The intermediate storage of the variable array we get from DBG proxy
+
+               //variablesNew = this.getPHPDBGProxy ().readVariables (this); // Get the variable array from DBG proxy
+               //variables    = variablesNew;                                // Store the array the stackframes member variable
+               varList   = this.getPHPDBGProxy ().readVariables (this);
+
+               variables = (PHPVariable[]) varList.toArray (new PHPVariable[varList.size ()]);
+
+               return variables;                                           // Give the array back to user interface
+       }
+
+       /**
+        *
+        */
+       private PHPVariable findVariable (Vector varList, String varname) {
+               PHPVariable     variable;
+               PHPValue        value;
+               int                     i;
+
+               for (i = 0; i < varList.size (); i++) {                                         // For all variables
+                       variable = (PHPVariable) varList.get (i);                               // Get the variable
+                       value    = (PHPValue) variable.getValue ();                             // Get the value of the variable
+
+                       try {
+                               if (value.hasVariables ()) {                                            // Does the variable/value have children
+                                       variable = findVariable (value.getChildVariables (), varname);
+
+                                       if (variable != null) {
+                                               return variable;
+                                       }
+                               }
+                               else if ((variable.getName ()).equals (varname)) {      //
+                                       return variable;                                                                //
+                               }
                        }
-               }       
+                       catch (DebugException e) {                                                              // That's, because of the hasVariables method
+                       }
+               }
+
                return null;
        }
-       
-       public boolean hasVariables() throws DebugException {
-               if (variables == null) {
-                       return false;
+
+       /**
+        * This method is called from the UI (e.g. from PHPDebugHover
+        * to find the variable the mouse is pointing to)
+        *
+        * @param s The variable name we are looking for.
+        * @return
+        */
+       public IVariable findVariable (String s) throws DebugException {
+               return (findVariable (varList, s));                                                     // Prefix the variable name with $
+       }
+
+       /**
+        *
+        */
+       public boolean hasVariables () throws DebugException {
+               if (variables == null) {                                                                        // Do we have a variables array?
+                       return false;                                                                                   // No
                }
-               return variables.length > 0;
+
+               return variables.length > 0;                                // Is there something within the array?
        }
-       
+
        public int getLineNumber() {
                return lineNumber;
        }
-       
+
+       public void setLineNumber(int line) {
+               lineNumber = line;
+       }
+
        public int getCharStart() throws DebugException {
                // not supported
                return -1;
        }
-       
+
        public int getCharEnd() throws DebugException {
                // not supported
                return -1;
        }
-       
+
        public String getName() {
                if(!this.getDescription().equals(""))
                        return this.getDescription() + " [line: " + this.getLineNumber() + "]";
@@ -107,7 +196,7 @@ public class PHPStackFrame implements IStackFrame {
        public String getFileName() {
                return file;
        }
-       
+
        public void setDescription(String desc) {
                this.description= desc;
        }
@@ -115,118 +204,158 @@ public class PHPStackFrame implements IStackFrame {
        public String getDescription() {
                return this.description;
        }
-       
+
        public IRegisterGroup[] getRegisterGroups() throws DebugException {
                return null;
        }
-       
+
        public boolean hasRegisterGroups() throws DebugException {
                return false;
        }
-       
+
        public String getModelIdentifier() {
                return this.getThread().getModelIdentifier();
        }
-       
+
        public IDebugTarget getDebugTarget() {
                return this.getThread().getDebugTarget();
        }
-       
+
        public ILaunch getLaunch() {
                return this.getDebugTarget().getLaunch();
        }
-       
+
        public boolean canStepInto() {
                return canResume();
        }
-       
+
        public boolean canStepOver() {
                return canResume();
        }
-       
+
        public boolean canStepReturn() {
                return canResume();
        }
-       
+
        public boolean isStepping() {
                return false;
        }
-       
-       public void stepInto() throws DebugException {
-               thread.prepareForResume() ;
-               this.getPHPDBGProxy().readStepIntoEnd(PHPStackFrame.this) ;             
-               DebugEvent ev = new DebugEvent(this.getThread(), DebugEvent.RESUME, DebugEvent.STEP_INTO);
-               DebugPlugin.getDefault().fireDebugEventSet(new DebugEvent[] { ev });
+
+       /**
+        *
+        */
+       public void stepInto () throws DebugException {
+               DebugEvent      ev;
+
+        thread.prepareForResume (DebugEvent.STEP_INTO);             // Don't know why, but this is necessary
+               this.getPHPDBGProxy ().readStepIntoEnd (PHPStackFrame.this);
+
+               ev = new DebugEvent (this.getThread (), DebugEvent.RESUME, DebugEvent.STEP_INTO);
+               DebugPlugin.getDefault().fireDebugEventSet (new DebugEvent[] { ev });
        }
-       
-       public void stepOver() throws DebugException {
-               thread.prepareForResume() ;
-               this.getPHPDBGProxy().readStepOverEnd(PHPStackFrame.this) ;
-               DebugEvent ev = new DebugEvent(this.getThread(), DebugEvent.RESUME, DebugEvent.STEP_OVER);
-               DebugPlugin.getDefault().fireDebugEventSet(new DebugEvent[] { ev });
+
+       /**
+        *
+        */
+       public void stepOver () throws DebugException {
+               DebugEvent      ev;
+
+        thread.prepareForResume (DebugEvent.STEP_OVER);
+               this.getPHPDBGProxy ().readStepOverEnd (PHPStackFrame.this) ;
+
+               ev = new DebugEvent (this.getThread (), DebugEvent.RESUME, DebugEvent.STEP_OVER);
+               DebugPlugin.getDefault ().fireDebugEventSet (new DebugEvent[] { ev });
        }
 
-       public void stepReturn() throws DebugException {
-               thread.prepareForResume() ;
-               this.getPHPDBGProxy().readStepReturnEnd(PHPStackFrame.this) ;                           
-               DebugEvent ev = new DebugEvent(this.getThread(), DebugEvent.RESUME, DebugEvent.STEP_RETURN);
-               DebugPlugin.getDefault().fireDebugEventSet(new DebugEvent[] { ev });            
+       /**
+        *
+        */
+       public void stepReturn () throws DebugException {
+               DebugEvent      ev;
+
+        thread.prepareForResume (DebugEvent.STEP_RETURN);
+               this.getPHPDBGProxy ().readStepReturnEnd (PHPStackFrame.this) ;
+
+               ev = new DebugEvent (this.getThread (), DebugEvent.RESUME, DebugEvent.STEP_RETURN);
+               DebugPlugin.getDefault ().fireDebugEventSet (new DebugEvent[] { ev });
        }
 
-       
+
        public boolean canResume() {
                return this.getThread().canResume();
        }
-       
+
        public boolean canSuspend() {
                return this.getThread().canSuspend();
        }
-       
+
        public boolean isSuspended() {
                return this.getThread().isSuspended();
-       } 
-       
+       }
+
        public void resume() throws DebugException {
                this.getThread().resume();
        }
-       
+
        public void suspend() throws DebugException {
        }
-       
+
        public boolean canTerminate() {
                return this.getThread().canTerminate();
        }
-       
+
        public boolean isTerminated() {
                return this.getThread().isTerminated();
-       } 
-       
+       }
+
        public void terminate() throws DebugException {
                getPHPDBGProxy().stop();
-       } 
-       
-       public Object getAdapter(Class arg0) {
-               if (arg0==PHPStackFrame.class)
-                       return this;
-               else
-                       return null;
        }
 
        public int getIndex() {
                return index;
        }
 
+       public void setIndex (int index) {
+               this.index = index;
+       }
+
        public PHPDBGProxy getPHPDBGProxy() {
                PHPDebugTarget DebugTarget;
-               DebugTarget= (PHPDebugTarget)thread.getDebugTarget();
-               return DebugTarget.getPHPDBGProxy();
+
+               DebugTarget = (PHPDebugTarget) thread.getDebugTarget ();
+
+               return DebugTarget.getPHPDBGProxy ();
        }
 
        public void setFile(String file) {
                this.file = file;
        }
-       
+
        public int getModNo() {
                return modno;
        }
+
+       /**
+        * This function is needed when sorting the stackframes by their index numbers.
+        *
+        * @param obj The stackframe which this one is compared to.
+        * @return
+        * <ul>
+        * <li> -1 if the index of this stackframe is less.
+        * <li> 0 if the index of both stackfream is equal (should no happen).
+        * <li> 1 if the index of this stackfram is greater.
+        * </ul>
+        */
+       public int compareTo (Object obj)
+       {
+               if (index < ((PHPStackFrame) obj).getIndex ()) {
+                       return -1;
+               }
+               else if (index > ((PHPStackFrame) obj).getIndex ()) {
+                       return 1;
+               }
+
+               return 0;
+       }
 }