test/mjsunit/debug-set-script-source.js

// Copyright 2012 the V8 project authors. All rights reserved.
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// Flags: --expose-debug-as debug
// Get the Debug object exposed from the debug context global object.
Debug = debug.Debug

var script_number = 0;
var script_names = [];
var exception = null;

function listener(event, exec_state, event_data, data) {
  if (event == Debug.DebugEvent.BeforeCompile) {
    event_data.script().setSource(event_data.script().source() +
        " //# sourceURL=proper_location_" + (++script_number));
  } else if (event == Debug.DebugEvent.AfterCompile) {
    try {
      event_data.script().setSource("a=1 //# sourceURL=wrong_location");
    } catch(e) {
      exception = e;
    }
    script_names.push(event_data.script().name());
  }
};


// Add the debug event listener.
Debug.setListener(listener);

// Compile different sources.
eval('a=1');
eval('(function(){})');

assertEquals(2, script_names.length);
assertEquals("proper_location_1", script_names[0]);
assertEquals("proper_location_2", script_names[1]);

assertEquals("illegal access", exception);

Debug.setListener(null);