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Added ScriptRuntime.getCatchObject() for extracting JS object to pass as the argument to JS catch statement.

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This commit is contained in:
igor%mir2.org 2003-06-30 19:21:41 +00:00
parent 6d1229405a
commit 387b707f61
1 changed files with 29 additions and 0 deletions
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29
js/rhino/src/org/mozilla/javascript/ScriptRuntime.java
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@ -718,6 +718,35 @@ public class ScriptRuntime {
throw we;
}
/**
* Converts Java exceptions that JS can catch into an object the script
* will see as the catch argument.
*/
public static Object getCatchObject(Context cx, Scriptable scope,
Throwable exception)
{
Object catchObj;
for (;;) {
if (exception instanceof JavaScriptException) {
catchObj = ScriptRuntime.unwrapJavaScriptException(
(JavaScriptException)exception);
} else if (exception instanceof EcmaError) {
// an offical ECMA error object,
catchObj = ((EcmaError)exception).getErrorObject();
} else if (exception instanceof WrappedException) {
WrappedException wex = (WrappedException)exception;
exception = wex.getWrappedException();
continue;
} else {
// catch can not be called with any other exceptions
Context.codeBug();
catchObj = null;
}
break;
}
return catchObj;
}
public static Object getProp(Object obj, String id, Scriptable scope) {
if (obj == null || obj == Undefined.instance) {
throw NativeGlobal.undefReadError(obj, id, scope);