Sha256: dc54759cd71ac25572200603a344de75581c5228ba292c1333518b80372f8ec9
Contents?: true
Size: 1.78 KB
Versions: 135
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Stored size: 1.78 KB
Contents
/*
* Copyright 2006-2007 Yu Su
* Distributed under the BSD License
*/
package com.xruby.debug.cmd;
import com.sun.jdi.StackFrame;
import com.sun.jdi.IncompatibleThreadStateException;
import com.sun.jdi.Location;
import com.sun.jdi.AbsentInformationException;
import com.xruby.debug.Instruction;
import com.xruby.debug.Result;
import com.xruby.debug.ThreadInfo;
import com.xruby.debug.SourceCodeMgr;
import static java.lang.System.err;
import static java.lang.System.out;
/**
* List the source code, only for commandline tools
*
* @author Yu Su (beanworms@gmail.com)
*/
public class ListInsn implements Instruction {
private int range;
public ListInsn(int range) {
if(range > 0) {
this.range = range;
} else {
this.range = 5;
}
}
public Result execute() {
Result result = null;
ThreadInfo threadInfo = ThreadInfo.getCurrentThreadInfo();
StackFrame frame;
try {
frame = threadInfo.getCurrentFrame();
} catch (IncompatibleThreadStateException exc) {
err.println("<location unavailable>");
return result;
}
if (frame == null) {
err.println("No frames on the current call stack");
} else {
Location loc = frame.location();
// TODO: Print out source code
try {
String sourceFile = loc.sourceName();
int lineNumber = loc.lineNumber();
out.println(SourceCodeMgr.getSourceSnippet(sourceFile, lineNumber, range));
} catch (AbsentInformationException e) {
err.println("Debug information lost");
}
}
return result;
}
}
Version data entries
135 entries across 135 versions & 2 rubygems