blob: 39ebf3a7461835b14bcdc9c8fc89ddf0da75437f [file] [log] [blame]
// Copyright 2010 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
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// Flags: --expose-debug-as debug
// Get the Debug object exposed from the debug context global object.
Debug = debug.Debug
eval("function ChooseAnimal(p) {\n " +
" if (p == 7) {\n" + // Use p
" return;\n" +
" }\n" +
" return function Chooser() {\n" +
" return 'Cat';\n" +
" };\n" +
"}\n");
var old_closure = ChooseAnimal(19);
assertEquals("Cat", old_closure());
var script = Debug.findScript(ChooseAnimal);
var orig_animal = "'Cat'";
var patch_pos = script.source.indexOf(orig_animal);
var new_animal_patch = "'Capybara' + p";
// We patch innermost function "Chooser".
// However, this does not actually patch existing "Chooser" instances,
// because old value of parameter "p" was not saved.
// Instead it patches ChooseAnimal.
var change_log = new Array();
Debug.LiveEdit.TestApi.ApplySingleChunkPatch(script, patch_pos, orig_animal.length, new_animal_patch, change_log);
print("Change log: " + JSON.stringify(change_log) + "\n");
var new_closure = ChooseAnimal(19);
// New instance of closure is patched.
assertEquals("Capybara19", new_closure());
// Old instance of closure is not patched.
assertEquals("Cat", old_closure());