Removed a false assertion in ScopeIterator that assumed context extension to never be a JSContextExtensionObject.
The context extension object in a 'with' context is JSContextExtensionObject iff the 'with' statement is generated from a catch block in order to extend its local scope with a variable holding exception object. This is how we differentiate 'catch' scope from 'with' scope.
Chrome bug:
http://code.google.com/p/chromium/issues/detail?id=17229
Review URL: http://codereview.chromium.org/202005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2843 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
For each frame it is now possible to request information on the scope chain. Each scope in the chain can have one of the types local, global, with and closure. For scopes of type global and with the mirror for the actual global or with object is available. For scopes of type local and closure a plain JavaScript object with the materialized content of the scope is created and its mirror is returned. Depending on the level of possible optimization the content of the materialized local and closure scopes might only contain the names which are actually used.
To iterate the scope chain an iterator ScopeIterator have been added which can provide the type of each scope for each part of the chain. This iterator creates an artificial local scope whenever that is present as the context chain does not include the local scope.
To avoid caching the mirror objects for the materialized the local and closure scopes transient mirrors have been added. They have negative handles and cannot be retrieved by subsequent lookup calls. Their content is part of a single response.
For debugging purposes an additional runtime function DebugPrintScopes is been added.
Added commands 'scopes' and 'scope' to the developer shell and fixed the dir command.
BUG=none
TEST=test/mjsunit/debug-scopes.js
Review URL: http://codereview.chromium.org/123021
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2149 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
* Identify heap numbers that contain non-Smi int32s and do bit
ops on them without calling the fp hardware or emulation.
* Identify results that are non-Smi int32s and write them into
heap numbers without calling the fp hardware or emulation.
* Do unary minus on heap numbers without going into the runtime
system.
* On add, sub and mul if we have both Smi and heapnumber inputs
to the same operation then convert the Smi to a double and do
the op without going into runtime system. This also applies
if we have two Smi inputs but the result is not Smi.
Review URL: http://codereview.chromium.org/119241
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2131 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Scripts now have a compilation type which can be host, eval or JSON. Host scripts are compiled through the API, eval scripts are compiled through call to evan and JSON scripts are compiled as a result of calling JSON.parse.
For scripts scripts compiled through eval the JavaScript function in top of the stack and the pc offset into the code is stored in the script object. This makes it possible to calculate the source position of the eval call later when requested. This information can be obtained through the script mirror object and is part of the script mirror JSON serialization for the debugger protocol.
Moved the enumeration ScripType into class Script and remamed to Type. The new compilation type enumeration is also inside the class Script.
This information is now shown when using the scripts command in he developer shell debugger.
Review URL: http://codereview.chromium.org/119108
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2119 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Each thread running V8 code is assigned an id in thread local storage the first time V8 code is run in it. The thread information returned to the debugger contains the number of threads, the id of each of these threads and which one is the current thread.
Added a threads command to the developer shell debugger for showing information on threads.
Review URL: http://codereview.chromium.org/48009
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1523 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Changed the script break points to be able to handle both break points based on script names and script ids. When break points are set through a script id the position is relative to the script itself. This is different from the script break points set through script names where the line/coulmn offset is taken into account.
This has the side effect that function break points are not converted into script break points for named scripts.
Show the script id in the D8 shell debugger when listing all scripts using the 'scripts' command.
Review URL: http://codereview.chromium.org/40317
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1468 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Formatting of both debugger events and debugger responses are now unified into one function. This is mainly in preparation for the upcomming remote debugging support where having it a one function simplify things.
Review URL: http://codereview.chromium.org/27330
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1399 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
The D8 debugger frontend now only processes JSON messages. Before the debugger events was passed as objects.
Changed the debugger events JSON generation to use the same serailizer as the responses to requests. This provides correct serialization of mirror objects in debugger events. Renamed ResponsePacket to ProtocolMessage as it is not only used for responses.
Review URL: http://codereview.chromium.org/27202
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1374 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fixed output of evaluated expressions from the debugger in the developer shell.
Use global evaluate request from developer shell if there is no JavaScript stack.
Remove use of JS2C macros in developer shell JavaScript code.
Review URL: http://codereview.chromium.org/21350
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1273 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
The debugger compile events (BeforeCompile and AfterCompile) have not been used by any V8 debuggers lately and where actually not working any more. Added the correct information to the compile event.
Added a simple 'trace compile' command to the developer shell for testing.
Added a test for compile evnets.
Review URL: http://codereview.chromium.org/21076
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1230 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Added a 'dir' command to the command line debugger to display the details of an object including the handle number for the object and the objects that it references.
Added the ability to use #XXX# to a 'print' or 'dir' request. XXX is the handle number for the object.
Review URL: http://codereview.chromium.org/18589
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1154 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
break location [condition]
clear <breakpoint #>
backtrace [from frame #] [to frame #]]
frame <frame #>
step [in | next | out| min [step count]]
print <expression>
source [from line [num lines]]
scripts
continue
help
It is enabled through the option --debugger which is on by default.
Review URL: http://codereview.chromium.org/14509
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@996 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
