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Merge pull request #76207 from dalexeev/clarify-rpc-docs

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Clarify `@rpc` annotation arguments docs
This commit is contained in:
Fabio Alessandrelli 2023-06-18 21:34:34 +02:00 committed by GitHub
commit 116f783db7
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2 changed files with 13 additions and 14 deletions
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8
modules/gdscript/doc_classes/@GDScript.xml
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@ -612,7 +612,7 @@
[/codeblock]
</description>
</annotation>
<annotation name="@rpc" qualifiers="vararg">
<annotation name="@rpc">
<return type="void" />
<param index="0" name="mode" type="String" default="&quot;authority&quot;" />
<param index="1" name="sync" type="String" default="&quot;call_remote&quot;" />
@ -620,7 +620,11 @@
<param index="3" name="transfer_channel" type="int" default="0" />
<description>
Mark the following method for remote procedure calls. See [url=$DOCS_URL/tutorials/networking/high_level_multiplayer.html]High-level multiplayer[/url].
The order of [param mode], [param sync] and [param transfer_mode] does not matter and all arguments can be omitted, but [param transfer_channel] always has to be the last argument. The accepted values for [param mode] are [code]"any_peer"[/code] or [code]"authority"[/code], for [param sync] are [code]"call_remote"[/code] or [code]"call_local"[/code] and for [param transfer_mode] are [code]"unreliable"[/code], [code]"unreliable_ordered"[/code] or [code]"reliable"[/code].
The accepted values:
- for [param mode] are [code]"any_peer"[/code] or [code]"authority"[/code];
- for [param sync] are [code]"call_remote"[/code] or [code]"call_local"[/code];
- and for [param transfer_mode] are [code]"unreliable"[/code], [code]"unreliable_ordered"[/code], or [code]"reliable"[/code].
The order of [param mode], [param sync] and [param transfer_mode] does not matter, but values related to the same argument must not be used more than once. [param transfer_channel] always has to be the 4th argument (you must specify 3 preceding arguments).
[codeblock]
@rpc
func fn(): pass

19
modules/gdscript/gdscript_parser.cpp
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@ -116,7 +116,7 @@ GDScriptParser::GDScriptParser() {
// Warning annotations.
register_annotation(MethodInfo("@warning_ignore", PropertyInfo(Variant::STRING, "warning")), AnnotationInfo::CLASS | AnnotationInfo::VARIABLE | AnnotationInfo::SIGNAL | AnnotationInfo::CONSTANT | AnnotationInfo::FUNCTION | AnnotationInfo::STATEMENT, &GDScriptParser::warning_annotations, varray(), true);
// Networking.
register_annotation(MethodInfo("@rpc", PropertyInfo(Variant::STRING, "mode"), PropertyInfo(Variant::STRING, "sync"), PropertyInfo(Variant::STRING, "transfer_mode"), PropertyInfo(Variant::INT, "transfer_channel")), AnnotationInfo::FUNCTION, &GDScriptParser::rpc_annotation, varray("authority", "call_remote", "unreliable", 0), true);
register_annotation(MethodInfo("@rpc", PropertyInfo(Variant::STRING, "mode"), PropertyInfo(Variant::STRING, "sync"), PropertyInfo(Variant::STRING, "transfer_mode"), PropertyInfo(Variant::INT, "transfer_channel")), AnnotationInfo::FUNCTION, &GDScriptParser::rpc_annotation, varray("authority", "call_remote", "unreliable", 0));
#ifdef DEBUG_ENABLED
is_ignoring_warnings = !(bool)GLOBAL_GET("debug/gdscript/warnings/enable");
@ -4141,21 +4141,16 @@ bool GDScriptParser::rpc_annotation(const AnnotationNode *p_annotation, Node *p_
Dictionary rpc_config;
rpc_config["rpc_mode"] = MultiplayerAPI::RPC_MODE_AUTHORITY;
if (!p_annotation->resolved_arguments.is_empty()) {
int last = p_annotation->resolved_arguments.size() - 1;
if (p_annotation->resolved_arguments[last].get_type() == Variant::INT) {
rpc_config["channel"] = p_annotation->resolved_arguments[last].operator int();
last -= 1;
}
if (last > 3) {
push_error(R"(Invalid RPC arguments. At most 4 arguments are allowed, where only the last argument can be an integer to specify the channel.')", p_annotation);
return false;
}
unsigned char locality_args = 0;
unsigned char permission_args = 0;
unsigned char transfer_mode_args = 0;
for (int i = last; i >= 0; i--) {
for (int i = 0; i < p_annotation->resolved_arguments.size(); i++) {
if (i == 3) {
rpc_config["channel"] = p_annotation->resolved_arguments[i].operator int();
continue;
}
String arg = p_annotation->resolved_arguments[i].operator String();
if (arg == "call_local") {
locality_args++;