LiveEdit: breakpoints updates and fixes for related problems

test/mjsunit/debug-liveedit-breakpoints.js

+// Copyright 2010 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
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+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// 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
+
+var function_z_text =
+"  function Z() {\n"
++ "    return 'Z';\n" // Breakpoint line ( #6 )
++ "  }\n";
+
+eval(
+"function F25() {\n"
++ "  return 25;\n" // Breakpoint line ( #1 )
++ "}\n"
++ "function F26 () {\n"
++ "  var x = 20;\n"
++ function_z_text // function takes exactly 3 lines
+//                 // Breakpoint line ( #6 )
+//
++ "  var y = 6;\n"
++ "  return x + y;\n"
++ "}\n"
++ "function Nested() {\n"
++ "  var a = 30;\n"
++ "  return function F27() {\n"
++ "    var b = 3;\n" // Breakpoint line ( #14 )
++ "    return a - b;\n"
++ "  }\n"
++ "}\n"
+);
+
+
+assertEquals(25, F25());
+assertEquals(26, F26());
+
+var script = Debug.findScript(F25);
+
+Debug.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptId, script.id, 1, 1, "true || false || false");
+Debug.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptId, script.id, 6, 1, "true || false || false");
+Debug.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptId, script.id, 14, 1, "true || false || false");
+
+assertEquals(3, Debug.scriptBreakPoints().length);
+
+var new_source = script.source.replace(function_z_text, "");
+print("new source: " + new_source);
+
+var change_log = new Array();
+Debug.LiveEdit.SetScriptSource(script, new_source, change_log);
+print("Change log: " + JSON.stringify(change_log) + "\n");
+
+var breaks = Debug.scriptBreakPoints();
+
+// One breakpoint gets duplicated in a old version of script.
+assertTrue(breaks.length > 3 + 1);
+
+var breakpoints_in_script = 0;
+var break_position_map = {};
+for (var i = 0; i < breaks.length; i++) {
+  if (breaks[i].script_id() == script.id) {
+    break_position_map[breaks[i].line()] = true;
+    breakpoints_in_script++;
+  }
+}
+
+assertEquals(3, breakpoints_in_script);
+
+// Check 2 breakpoints. The one in deleted function should have been moved somewhere.
+assertTrue(break_position_map[1]);
+assertTrue(break_position_map[11]);
+