This fixes UBSAN errors reported by running our testsuite, importing the
TPS demo, and running the TPS demo. I have tried, wherever possible, to
fix issues related to reported issues but not directly reported by UBSAN
because thse code paths just happened to not have been exercised in
these cases.
These fixes apply only to errors reported, and caused by, core/
The following things have been changed:
* Make sure there are no implicit sign changing casts in core.
* Explicitly type enums that are part of a public API such that users of
the API cannot pass in wrongly-sized values leading to potential stack
corruption.
* Ensure that memcpy is never called with invalid or null pointers as
this is undefined behavior, and when the engine is built with
optimizations turned on leads to memory corruption and hard to debug
crashes.
* Replace enum values only used as static values with constexpr static
const values instead. This has no runtime overhead. This makes it so
that the size of the enums is explicit.
* Make sure that nan and inf is handled consistently in String.
* Implement a _to_int template to ensure that all of the paths use the
same algorhithm, and correct the negative integer case.
* Changed the way the json serializer precision work, and added tests to
verify the new behavior. The behavior doesn't quite match master in
particulary for negative doubles as the original code tried to cast -inf
to an int. This then led to negative doubles losing all but one of
their decimal points when serializing. Behavior in GDScript remains
unchanged.
• `modernize-use-default-member-init` and `readability-redundant-member-init`
• Minor adjustments to `.clang-tidy` to improve syntax & remove redundancies
This reverts commit 150b50cfcd.
As discussed with the GDScript team, this has some implications which aren't
fully consensual yet, and which we want to revisit.
For now we revert to the 4.2 behavior for the 4.3 release, to avoid breaking
user expectations.
Also shuffles some method definitions and declarations to be more consistent with the way the Variant types are ordered across the codebase.
And removes an unnecessary JSON assign (`JSON::stringify` can now be accessed statically)
Hash comparison for Variant continues to perform semantic/logical comparison with NaN's considered equal by default (to prevent #16114, #7354, #6947, #8081), but now optionally allows for numeric comparison that does not consider NaN's equal to support proper value comparison (for #72222)
This is so everything is consistent, as a freed object is not equivalent
to `null` in general. The booleanization of a freed object still returns
`false` to work as an easy check for validity of objects. Similarly, the
negation of a freed object returns `true`.
Also makes freed objects different from each other (if they are not the
same reference).
- Consider PackedArrays non-shared since they are copied on C++/script
boundaries.
- Add error messages in the analyzer when assigning to read-only
properties.
- Add specific error message at runtime when assignment fails because
the property is read-only.
* Fix potential crash when using bind in `Variant::get_callable_error_text()`
* Properly compute bound arguments so they can be properly shown.
* Add a function to obtain the actual bound arguments.
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.
It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).
We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).
Also fixed "cf." Frenchism - it's meant as "refer to / see".
Tweaks comments around the touched-up parts. Also tweaks spacing
Also adds some spacing in all cases of Variant::`reference()`. This is a special for consistency, because it ends up making the cases more readable.
