package org.ibex.js;
import org.ibex.util.*;
+import java.io.*;
/** An exception which can be thrown and caught by JavaScript code */
public class JSExn extends Exception {
private Vec backtrace = new Vec();
- private Object js = null;
- public JSExn(Object js) { this.js = js; }
- public String toString() { return "JSExn: " + js; }
- public String getMessage() { return toString(); }
- public Object getObject() { return js; }
- public void addBacktrace(String sourceName, int lineNo) { backtrace.addElement(sourceName + ":" + lineNo); }
- public String backtrace() {
- StringBuffer sb = new StringBuffer(1024);
- for(int i=0;i<backtrace.size();i++)
- sb.append(" at " + (String) backtrace.elementAt(i) + "\n");
- return sb.toString();
+ private JS js = null;
+ public JSExn(String s) { this(JS.S(s)); }
+ public JSExn(JS js) {
+ this.js = js;
+ if (Interpreter.current() != null)
+ fill(Interpreter.current().stack, Interpreter.current().f, Interpreter.current().pc, Interpreter.current().scope);
}
-}
-
-/** should only be used for failed coercions */
-class JSRuntimeExn extends RuntimeException {
- private Object js = null;
- public JSRuntimeExn(Object js) { this.js = js; }
- public String toString() { return "JSRuntimeExn: " + js; }
+ public JSExn(JS js, Interpreter.Stack stack, JSFunction f, int pc, JSScope scope) { this.js = js; fill(stack, f, pc, scope); }
+ private void fill(Interpreter.Stack stack, JSFunction f, int pc, JSScope scope) {
+ addBacktrace(f.sourceName + ":" + f.line[pc]);
+ // FIXME: "trap on property"
+ /*if (scope != null && scope instanceof Trap.TrapScope)
+ addBacktrace("trap on property \"" + ((Trap.TrapScope)scope).t.name + "\"");*/
+ for(int i=stack.size()-1; i>=0; i--) {
+ JS element = stack.elementAt(i);
+ if (element instanceof Interpreter.CallMarker) {
+ Interpreter.CallMarker cm = (Interpreter.CallMarker)element;
+ if (cm.f != null)
+ addBacktrace(cm.f.sourceName + ":" + cm.f.line[cm.pc-1]);
+ /*if (cm.scope != null && cm.scope instanceof Trap.TrapScope)
+ addBacktrace("trap on property \"" + ((Trap.TrapScope)cm.scope).t.name + "\"");*/
+ }
+ }
+ }
+ public void printStackTrace() { printStackTrace(System.err); }
+ public void printStackTrace(PrintWriter pw) {
+ for(int i=0; i<backtrace.size(); i++) pw.println(" at " + (String) backtrace.elementAt(i));
+ super.printStackTrace(pw);
+ }
+ public void printStackTrace(PrintStream ps) {
+ for(int i=0; i<backtrace.size(); i++) ps.println(" at " + (String) backtrace.elementAt(i));
+ super.printStackTrace(ps);
+ }
+ public String toString() { return "JSExn: " + JS.debugToString(js); }
public String getMessage() { return toString(); }
- public Object getObject() { return js; }
-}
+ public JS getObject() { return js; }
+ public void addBacktrace(String line) { backtrace.addElement(line); }
+
+ public static class IO extends JSExn {
+ public IO(java.io.IOException ioe) {
+ super("ibex.io: " + ioe.toString());
+ JS.warn(ioe);
+ }
+ }
+}