From f7eb426e2ebafc5598b0e43baf37d9a50cea1648 Mon Sep 17 00:00:00 2001 From: Leonard Meagher Date: Tue, 9 Apr 2019 22:07:40 -0700 Subject: Allow overriding how scripted objects are converted to strings solves #26796 - ADD `String to_string()` method to Object which can be overriden by `String _to_string()` in scripts - ADD `String to_string(r_valid)` method to ScriptInstance to allow langauges to control how scripted objects are converted to strings - IMPLEMENT to_string for GDScriptInstance, VisualScriptInstance, and NativeScriptInstance - ADD Documentation about `Object.to_string` and `Object._to_string` - Changed `Variant::operator String` to use `obj->to_string()` --- modules/gdnative/nativescript/nativescript.cpp | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'modules/gdnative/nativescript/nativescript.cpp') diff --git a/modules/gdnative/nativescript/nativescript.cpp b/modules/gdnative/nativescript/nativescript.cpp index 5cf144d4fe..b743768783 100644 --- a/modules/gdnative/nativescript/nativescript.cpp +++ b/modules/gdnative/nativescript/nativescript.cpp @@ -32,6 +32,7 @@ #include "gdnative/gdnative.h" +#include "core/core_string_names.h" #include "core/global_constants.h" #include "core/io/file_access_encrypted.h" #include "core/os/file_access.h" @@ -771,6 +772,27 @@ void NativeScriptInstance::notification(int p_notification) { call_multilevel("_notification", args, 1); } +String NativeScriptInstance::to_string(bool *r_valid) { + if (has_method(CoreStringNames::get_singleton()->_to_string)) { + Variant::CallError ce; + Variant ret = call(CoreStringNames::get_singleton()->_to_string, NULL, 0, ce); + if (ce.error == Variant::CallError::CALL_OK) { + if (ret.get_type() != Variant::STRING) { + if (r_valid) + *r_valid = false; + ERR_EXPLAIN("Wrong type for " + CoreStringNames::get_singleton()->_to_string + ", must be a String."); + ERR_FAIL_V(String()); + } + if (r_valid) + *r_valid = true; + return ret.operator String(); + } + } + if (r_valid) + *r_valid = false; + return String(); +} + void NativeScriptInstance::refcount_incremented() { Variant::CallError err; call("_refcount_incremented", NULL, 0, err); -- cgit v1.2.3