author David Parks <dparks@mozilla.com>
Mon, 22 May 2017 02:39:11 -0700
changeset 359982 d2c50b0bab73
parent 287116 070e28f591b6
permissions -rw-r--r--
Bug 1330484 - Part 2: Remove invalid assert that checked that removed a11y child documents have no children. r=jimm

Here is a scenario under which the assert is invalid:

RecvHideEvent is received on a DocAccessibleParent DAP1 that has a child document DAP2... that in turn has a child document DAP3. DAP1::RecvHideEvent calls Shutdown on its root ProxyAccessible. This recursively calls Shutdown on child ProxyAccessibles until it reaches the one that is the parent of the child document DAP2. ProxyAccessibleBase::Shutdown then attempts to Unbind DAP2, which calls DAP1::RemoveChildDoc, which trips the assert because DAP2 has child document DAP3.
# .lldbinit file for debugging Mozilla

# -----------------------------------------------------------------------------
# For documentation on all of the commands and type summaries defined here
# and in the accompanying Python scripts, see python/lldbutils/README.txt.
# -----------------------------------------------------------------------------

# Import the module that defines complex Gecko debugging commands.  This assumes
# you are either running lldb from the top level source directory, the objdir,
# or the dist/bin directory.  (.lldbinit files in the objdir and dist/bin set
# topsrcdir appropriately.)
script topsrcdir = topsrcdir if locals().has_key("topsrcdir") else os.getcwd(); sys.path.append(os.path.join(topsrcdir, "python/lldbutils")); import lldbutils; lldbutils.init()

# Mozilla's use of UNIFIED_SOURCES to include multiple source files into a
# single compiled file breaks lldb breakpoint setting. This works around that.
# See http://lldb.llvm.org/troubleshooting.html for more info.
settings set target.inline-breakpoint-strategy always

# Show the dynamic type of an object when using "expr".  This, for example,
# will show a variable declared as "nsIFrame *" that points to an nsBlockFrame
# object as being of type "nsBlockFrame *" rather than "nsIFrame *".
settings set target.prefer-dynamic-value run-target

# Show the string value in atoms.
type summary add nsIAtom --summary-string "${var.mString}"

# Show the value of text nodes.
type summary add nsTextNode --summary-string "${var.mText}"

# Dump the current JS stack.
command alias js expr DumpJSStack()