Class JavaScriptDebugger

  • All Implemented Interfaces:

    public class JavaScriptDebugger
    extends Object
    implements org.htmlunit.corejs.javascript.debug.Debugger
    Monitors the execution of the JavaScript inside HtmlUnit, and provides debug information such as call stacks, variables, arguments, etc.


    When you set a break point in Java code that are directly/indirectly invoked through JavaScript, use toString() to see the JavaScript stack trace (and variables at each stack frame.) This helps you see where the problem is.

    TODO: add programmatic break point API, selective method invocation tracing, and allow arbitrary script evaluation in arbitrary stack frame.

    Kohsuke Kawaguchi
    See Also:
    • Constructor Detail

      • JavaScriptDebugger

        public JavaScriptDebugger()
    • Method Detail

      • handleCompilationDone

        public void handleCompilationDone​(org.htmlunit.corejs.javascript.Context cx,
                                          org.htmlunit.corejs.javascript.debug.DebuggableScript fnOrScript,
                                          String source)
        Specified by:
        handleCompilationDone in interface org.htmlunit.corejs.javascript.debug.Debugger
      • getFrame

        public org.htmlunit.corejs.javascript.debug.DebugFrame getFrame​(org.htmlunit.corejs.javascript.Context cx,
                                                                        org.htmlunit.corejs.javascript.debug.DebuggableScript fnOrScript)
        Specified by:
        getFrame in interface org.htmlunit.corejs.javascript.debug.Debugger
      • toString

        public String toString()
        Formats the current call stack into a human readable string.
        toString in class Object