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Temporary values in the stack were not being properly cleared when the
return value of calls were discarded, which can cause memory issues
especially for reference types like PackedByteArray.
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This prevents that the NIL address is filled with another value, which
causes problems for some instructions that read from NIL.
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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".
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* Removed instruction argument count and instruction prefetching. This is now done on the fly. Reduces jumps.
* OPCODE_DISPATCH now goes directly to the next instruction, like in Godot 3.x.
I have nothing I can use to test performance, so if anyone wants to lend a hand and compare with master (both on debug and release), it would be very welcome.
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- RPC configurations are now dictionaries.
- Script.get_rpc_methods renamed to Script.get_rpc_config.
- Node.rpc[_id] and Callable.rpc now return an Error.
- Refactor MultiplayerAPI to allow extension.
- New MultiplayerAPI.rpc method with Array argument (for scripts).
- Move the default MultiplayerAPI implementation to a module.
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Implement built-in classes Vector4, Vector4i and Projection.
* Two versions of Vector4 (float and integer).
* A Projection class, which is a 4x4 matrix specialized in projection types.
These types have been requested for a long time, but given they were very corner case they were not added before.
Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity.
**Q**: Why Projection and not Matrix4?
**A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
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Fixes #59485 and #60218
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When a type is shared (i.e. passed by reference) it doesn't need to be
called in a setter chain (e.g. `a.b.c = 0`) since it will be updated in
place.
This commit adds an instruction that jumps when the value is shared so
it can be used to skip those cases and avoid redundant calls of setters.
It also solves issues when assigning to sub-properties of read-only
properties.
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Adds a new, cleaned up, HashMap implementation.
* Uses Robin Hood Hashing (https://en.wikipedia.org/wiki/Hash_table#Robin_Hood_hashing).
* Keeps elements in a double linked list for simpler, ordered, iteration.
* Allows keeping iterators for later use in removal (Unlike Map<>, it does not do much
for performance vs keeping the key, but helps replace old code).
* Uses a more modern C++ iterator API, deprecates the old one.
* Supports custom allocator (in case there is a wish to use a paged one).
This class aims to unify all the associative template usage and replace it by this one:
* Map<> (whereas key order does not matter, which is 99% of cases)
* HashMap<>
* OrderedHashMap<>
* OAHashMap<>
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Fix nested ternary-if codegen
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Happy new year to the wonderful Godot community!
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Instructions are now only emitted if input type matches expected type.
Otherwise usual setter fallback.
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Fix loading of interdependent autoloads
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Move multiplayer classes to "core/multiplayer" subdir.
Move the RPCConfig and enums (TransferMode, RPCMode) to a separate
file (multiplayer.h), and bind them to the global namespace.
Move the RPC handling code to its own class (RPCManager).
Renames "get_rpc_sender_id" to "get_remote_sender_id".
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Move the autoload resolution to runtime by loading it into the stack
with an extra instruction. This allows an autoload to use another
autoload singleton independent of load order.
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- Move the "sync" property for RPCs to RPCConfig.
- Unify GDScript annotations into a single one:
- `@rpc(master)` # default
- `@rpc(puppet)`
- `@rpc(any)` # former `@remote`
- Implement three additional `@rpc` options:
- The second parameter is the "sync" option (which also calls the
function locally when RPCing). One of "sync", "nosync".
- The third parameter is the transfer mode (reliable, unreliable,
ordered).
- The third parameter is the channel (unused for now).
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Also write type adjust when needed for binary operators.
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Also _transform to _transform3d
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Since there might be tricky cases in the analyzer (in the case of unsafe
lines) which would need to be properly checked again. Instead, this
splits the code generator in two functions and use information set by
the analyzer to tell which function to use, without a need to re-check.
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GDScript: Fix crash caused by uninitialized temp stack slots
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This adds initialization to every typed temporary stack slot at the
beginning of the function call instead of emitting instructions, since
those might be in a conditional branch and not be called.
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GDScript: Use special stack space for temporaries to reduce type changes
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So the stack slots perform less type changes, which is useful for
future optimizations.
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There's now only 3 addressing modes: stack, constant, and member.
Self, class, and nil are now present respectively in the first 3 stack
slots. Global and class constants are moved to local constants when
compiling. Named globals is only present on editor to use on tool
singletons, so its use now emits a new instruction to copy the global to
the stack.
This allow us to further optimize the VM later by embedding the
addressing modes in the instructions themselves, which is better done
with less permutations.
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GDScript: Properly validate return type
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When the type cannot be validated at compile time, the runtime must do a
check to ensure type safety is kept, as the code might be assuming the
return type is correct in another place, leading to crashes if the
contract is broken.
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Rename Array.invert() to Array.reverse()
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- Use `Array[type]` for type-hints. e.g.:
`var array: Array[int] = [1, 2, 3]`
- Array literals are typed if their storage is typed (variable
asssignment of as argument in function all). Otherwise they are
untyped.
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Does the same internally for List and Vector<>, which includes all
PackedArray types.
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Fix error when calling coroutine with await in _ready
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Happy new year to the wonderful Godot community!
2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.
We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)
Here's to a great year 2021 for all Godot users 🎆
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The code paths for calling async functions seemed to be missing in some
cases, causing a debug break and false positive error.
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GDScript: Refactor builtin functions
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