- Check for pending exceptions after function calls and script
executions.
- Call LOGERROR instead of JS_ReportError when there is a conversion
error in FromJSVal, since that can only be called from C++ (where JS
errors don't really make sense). Instead, C++ callers of FromJSVal
should handle the failure and, themselves, either report an error or
simply do something else.
- Wrap JS_ReportError since that makes updating it later easier.
This isn't a systematical fix since ToJSVal also ought return a boolean
for failures, and we probably should trigger errors instead of warnings
on 'implicit' conversions, rather a preparation diff.
Part of the SM52 migration, stage: SM45 compatible (actually SM52
incompatible, too).
Based on a patch by: Itms
Comments by: Vladislavbelov, Stan`
Refs #742, #4893
Differential Revision: https://code.wildfiregames.com/D3093
This was SVN commit r24187.
JSAutoRequest is required before calling into most JSAPI methods, for GC
reasons.
Calling it is required and fragile as one must not forget.
Further, SM52 and later make manipulating JSContext* dangerous as that
can cross Compartment(Realm in SM68) barriers (and ScriptInterface now
matches a Compartment).
The solution to both problems is to avoid using JSContext* in 0 A.D.
itself. To achieve this, a Request class is introduced, and must be used
to access a JSContext* from a scriptInterface. Further, Request is
passed to other ScriptInterface functions isntead of JSContext*, making
it obvious that the caller has already called it, reducing errors and
redundant JSAutoRequest calls.
Only JSNative functions now get a naked JSContext* without protection,
but the likelihood of forgetting a request is lower since many
ScriptInterface functions now expect it.
JSContext* is directly passed to JSAPI functions only.
Part of the SM52 migration, stage: SM45 compatible
Based on a patch by: Itms
Tested By: Freagarach
Refs #4893
Differential Revision: https://code.wildfiregames.com/D3088
This was SVN commit r24176.
DefPersistentRooted is essentially a wrapper around unique_ptr and has
no real reason to exist.
Part of SM52 migration, stage: SM45 compatible.
Patch by: Itms
Tested by: Freagarach
Refs #4893
Differential Revision: https://code.wildfiregames.com/D3086
This was SVN commit r24170.
When serialising JS objects, we keep track of any encountered object,
and serialize it only once. Any further serialisation instead stores an
ID referring to the original object (essentially an opaque pointer).
The trouble of course is to have a unique, persistent identifier for
such an object.
svn uses an ObjectIDCache, essentially a "JS Object -> ID" map (which
internally is essentially a "JS heap pointer -> ID" map).
JS, since ES15, includes a "Symbol" primitive type, which is a unique,
immutable identifier. They are also not iterable by for..in or
GetOwnPropertyName or related.
This means they can be used to store the tag directly on the object
(since it's impossible overwrite a user property).
Thanks to this, we can forgo ObjectIDCache in the serializers, and since
following D2897 it becomes unused, we can delete it, along with the
Finalization code it used.
Part of SM52 migration, stage: SM45-compatible changes.
Patch by: Itms
Tested By: Freagarach
Refs #4893
Differential Revision: https://code.wildfiregames.com/D3085
This was SVN commit r24167.
The script interface has code to serialize/deserialize JS objects with a
user-defined prototype. That code is usable in the AI, but currently
unused (and there are no plans to use it in the long run).
Removing it allows removing more code down the line, which helps with
the SM45-52 migration.
Collaboration with itms.
Refs #4893
Differential Revision: https://code.wildfiregames.com/D2897
This was SVN commit r24157.
Range manager has several `std::vector` for fixed-size arrays and 2D
grids. By using proper data structures, the code readability is
improved.
This also moves around the LosVisibility enum.
Comments by: Stan`, nani
Differential Revision: https://code.wildfiregames.com/D2770
This was SVN commit r23769.
Replace boost::hash_combine with a lib/hash.h hash_combine performing
the same statement.
Replace inconspicuous global boost hash_value specializations with
std::hash specializations.
No performance difference was observed in three simple MeshManager
measurements.
Remove unused TAG_MASK and h_tag in h_mgr.cpp following 0748c5a75e.
Replace typedef with using keyword and sort header includes.
Differential Revision: https://code.wildfiregames.com/D2441
Tested on: clang 9.0.0, gcc 9.2.0, Jenkins/vs2015, Jenkins/gcc6
This was SVN commit r23191.
Remove unused SGUIBaseSettings and GUI comment.
Fix indentation of a macro, refs D794.
Differential Revision: https://code.wildfiregames.com/D838
Review by: leper.
Itms came up with the same patch for the SpiderMonkey 45 update
independently.
This was SVN commit r20062.
This avoids vswprintf failures when printing non-ASCII char* strings
from CLogger into the console.
Also convert ScriptInterface::ToString to return UTF-8, to avoid some
utf8_from_wstring calls.
Also remove some unused and redundant CConsole functions.
This was SVN commit r16333.
