Issue 2368: LiveEdit crashes when new object/array literal is added

test/mjsunit/debug-liveedit-literals.js

+// Copyright 2010 the V8 project authors. All rights reserved.
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+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --expose-debug-as debug
+// Get the Debug object exposed from the debug context global object.
+
+Debug = debug.Debug
+
+function Test(old_expression, new_expression) {
+    // Generate several instances of function to test that we correctly fix
+    // all functions in memory.
+    var function_instance_number = 11;
+    eval("var t1 =1;\n" +
+         "ChooseAnimalArray = [];\n" +
+         "for (var i = 0; i < function_instance_number; i++) {\n" +
+         "    ChooseAnimalArray.push(\n" +
+         "        function ChooseAnimal() {\n" +
+         "            return " + old_expression + ";\n" +
+         "        });\n" +
+         "}\n" +
+         "var t2 =1;\n");
+
+    for (var i = 0; i < ChooseAnimalArray.length; i++) {
+        assertEquals("Cat", ChooseAnimalArray[i]());
+    }
+
+    var script = Debug.findScript(ChooseAnimalArray[0]);
+
+    var patch_pos = script.source.indexOf(old_expression);
+    var new_animal_patch = new_expression;
+
+    var change_log = new Array();
+    Debug.LiveEdit.TestApi.ApplySingleChunkPatch(script, patch_pos,
+        old_expression.length, new_expression, change_log);
+
+    for (var i = 0; i < ChooseAnimalArray.length; i++) {
+        assertEquals("Capybara", ChooseAnimalArray[i]());
+    }
+}
+
+// Check that old literal boilerplate was reset.
+Test("['Cat'][0]", "['Capybara'][0]");
+Test("['Cat'][0]", "{a:'Capybara'}.a");
+
+// No literals -> 1 literal.
+Test("'Cat'", "['Capybara'][0]");
+
+// No literals -> 2 literals.
+Test("'Cat'", "['Capy'][0] + {a:'bara'}.a");
+
+// 1 literal -> no literals.
+Test("['Cat'][0]", "'Capybara'");
+
+// 2 literals -> no literals.
+Test("['Ca'][0] + {a:'t'}.a", "'Capybara'");
+
+// No literals -> regexp.
+Test("'Cat'", "(/.A.Y.A.A/i).exec('Capybara')[0]");
+
+// Array literal -> regexp.
+Test("['Cat'][0]", "(/.A.Y.A.A/i).exec('Capybara')[0]");
+
+// Regexp -> object literal.
+Test("(/.A./i).exec('Cat')[0]", "{c:'Capybara'}.c");
+
+// No literals -> regexp.
+Test("'Cat'", "(/.A.Y.A.A/i).exec('Capybara')[0]");
+
+// Regexp -> no literals.
+Test("(/.A./i).exec('Cat')[0]", "'Capybara'");