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/*
* header & license
* Copyright (c) 2007 Martin Krauskopf
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package org.jruby.debug;
import java.util.LinkedList;
import java.util.List;
import org.jruby.RubyThread;
import org.jruby.runtime.builtin.IRubyObject;
final class DebugContext {
static final String AT_BREAKPOINT = "at_breakpoint";
static final String AT_CATCHPOINT = "at_catchpoint";
static final String AT_LINE = "at_line";
static final String AT_TRACING = "at_tracing";
static final String LIST = "list";
private static int thnumMax = 0;
enum StopReason {
NONE, STEP, BREAKPOINT, CATCHPOINT
}
private final RubyThread thread;
private IRubyObject breakpoint;
private final List<DebugFrame> frames;
private int lastLine;
private String lastFile;
private int destFrame;
private int stopFrame;
private int stopNext;
private int stopLine;
private int stackLen;
private StopReason stopReason;
private int thnum;
private boolean dead;
// flags
private boolean suspended;
private boolean wasRunning;
private boolean ignored;
private boolean skipped;
private boolean enableBreakpoint;
private boolean stepped;
private boolean tracing;
private boolean forceMove;
DebugContext(final RubyThread thread) {
thnum = ++thnumMax;
lastFile = null;
lastLine = 0;
stopNext = -1;
destFrame = -1;
stopLine = -1;
stopFrame = -1;
stopReason = StopReason.NONE;
frames = new LinkedList<DebugFrame>();
breakpoint = thread.getRuntime().getNil();
this.thread = thread;
}
void addFrame(final DebugFrame debugFrame) {
frames.add(debugFrame);
}
RubyThread getThread() {
return thread;
}
DebugFrame getTopFrame() {
return frames.get(getStackSize() - 1);
}
DebugFrame getFrame(int index) {
return frames.get(getStackSize() - index - 1);
}
DebugFrame popFrame() {
return frames.remove(getStackSize() - 1);
}
void clearFrames() {
frames.clear();
}
IRubyObject getBreakpoint() {
return breakpoint;
}
void setBreakpoint(IRubyObject breakpoint) {
this.breakpoint = breakpoint;
}
int getDestFrame() {
return destFrame;
}
void setDestFrame(int destFrame) {
this.destFrame = destFrame;
}
boolean isEnableBreakpoint() {
return enableBreakpoint;
}
void setEnableBreakpoint(boolean enableBreakpoint) {
this.enableBreakpoint = enableBreakpoint;
}
boolean isForceMove() {
return forceMove;
}
void setForceMove(boolean forceMove) {
this.forceMove = forceMove;
}
boolean isIgnored() {
return ignored;
}
void setIgnored(boolean ignored) {
this.ignored = ignored;
}
String getLastFile() {
return lastFile;
}
void setLastFile(String lastFile) {
this.lastFile = lastFile;
}
int getLastLine() {
return lastLine;
}
void setLastLine(int lastLine) {
this.lastLine = lastLine;
}
boolean isSkipped() {
return skipped;
}
void setSkipped(boolean skipped) {
this.skipped = skipped;
}
int getStackLen() {
return stackLen;
}
void setStackLen(int stackLen) {
this.stackLen = stackLen;
}
int getStackSize() {
return frames.size();
}
boolean isStepped() {
return stepped;
}
void setStepped(boolean stepped) {
this.stepped = stepped;
}
int getStopFrame() {
return stopFrame;
}
void setStopFrame(int stopFrame) {
this.stopFrame = stopFrame;
}
int getStopLine() {
return stopLine;
}
void setStopLine(int stopLine) {
this.stopLine = stopLine;
}
int getStopNext() {
return stopNext;
}
void setStopNext(int stopNext) {
this.stopNext = stopNext;
}
StopReason getStopReason() {
return stopReason;
}
void setStopReason(StopReason stopReason) {
this.stopReason = stopReason;
}
boolean isSuspended() {
return suspended;
}
void setSuspended(boolean suspended) {
this.suspended = suspended;
}
int getThnum() {
return thnum;
}
void setThnum(int thnum) {
this.thnum = thnum;
}
boolean isTracing() {
return tracing;
}
void setTracing(boolean tracing) {
this.tracing = tracing;
}
boolean isWasRunning() {
return wasRunning;
}
void setWasRunning(boolean wasRunning) {
this.wasRunning = wasRunning;
}
boolean isDead() {
return dead;
}
void setDead(boolean dead) {
this.dead = dead;
}
/* "Step", "Next" and "Finish" do their work by saving information
about where to stop next. resetSteppingStopPoints removes/resets this
information. */
void resetSteppingStopPoints() {
this.destFrame = -1;
this.stopLine = -1;
this.stopNext = -1;
}
}