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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/gdb/mozilla/PropertyKey.py | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/gdb/mozilla/PropertyKey.py')
-rw-r--r-- | js/src/gdb/mozilla/PropertyKey.py | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/js/src/gdb/mozilla/PropertyKey.py b/js/src/gdb/mozilla/PropertyKey.py new file mode 100644 index 0000000000..517976a6da --- /dev/null +++ b/js/src/gdb/mozilla/PropertyKey.py @@ -0,0 +1,62 @@ +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this file, +# You can obtain one at http://mozilla.org/MPL/2.0/. + +# Pretty-printers for JSID values. + +import mozilla.prettyprinters +import mozilla.Root +from mozilla.prettyprinters import pretty_printer + +# Forget any printers from previous loads of this module. +mozilla.prettyprinters.clear_module_printers(__name__) + + +@pretty_printer("JS::PropertyKey") +class PropertyKey(object): + # Since people don't always build with macro debugging info, I can't + # think of any way to avoid copying these values here, short of using + # inferior calls for every operation (which, I hear, is broken from + # pretty-printers in some recent GDBs). + StringTypeTag = 0x0 + IntTagBit = 0x1 + VoidTypeTag = 0x2 + SymbolTypeTag = 0x4 + TypeMask = 0x7 + + def __init__(self, value, cache): + self.value = value + self.cache = cache + self.concrete_type = self.value.type.strip_typedefs() + + def to_string(self): + bits = self.value["asBits_"] + tag = bits & PropertyKey.TypeMask + if tag == PropertyKey.StringTypeTag: + body = bits.cast(self.cache.JSString_ptr_t) + elif tag & PropertyKey.IntTagBit: + body = bits >> 1 + elif tag == PropertyKey.VoidTypeTag: + return "JS::VoidPropertyKey" + elif tag == PropertyKey.SymbolTypeTag: + body = (bits & ~PropertyKey.TypeMask).cast(self.cache.JSSymbol_ptr_t) + else: + body = "<unrecognized>" + return "$jsid(%s)" % (body,) + + +@pretty_printer("JS::Rooted<long>") +def RootedPropertyKey(value, cache): + # Hard-code the referent type pretty-printer for PropertyKey roots and + # handles. See the comment for mozilla.Root.Common.__init__. + return mozilla.Root.Rooted(value, cache, PropertyKey) + + +@pretty_printer("JS::Handle<long>") +def HandlePropertyKey(value, cache): + return mozilla.Root.Handle(value, cache, PropertyKey) + + +@pretty_printer("JS::MutableHandle<long>") +def MutableHandlePropertyKey(value, cache): + return mozilla.Root.MutableHandle(value, cache, PropertyKey) |