Sync C# Array with Core

- Add `AddRange` method.
- Add `Fill` method.
- Add `Max` and `Min` methods.
- Add `PickRandom` method.
- Add `Reverse` method.
- Add `RecursiveEqual` method.
- Add `Sort` method.
- Add `Slice` and `GetSliceRange` methods.
- Add `IndexOf` overload that takes an index parameter.
- Add `LastIndexOf` method.
- Add `BinarySearch` method.
- Add/update documentation.

core/variant/array.cpp

@@ -612,14 +612,14 @@ void Array::shuffle() {
 	}
 }
 
-int Array::bsearch(const Variant &p_value, bool p_before) {
+int Array::bsearch(const Variant &p_value, bool p_before) const {
 	Variant value = p_value;
 	ERR_FAIL_COND_V(!_p->typed.validate(value, "binary search"), -1);
 	SearchArray<Variant, _ArrayVariantSort> avs;
 	return avs.bisect(_p->array.ptrw(), _p->array.size(), value, p_before);
 }
 
-int Array::bsearch_custom(const Variant &p_value, const Callable &p_callable, bool p_before) {
+int Array::bsearch_custom(const Variant &p_value, const Callable &p_callable, bool p_before) const {
 	Variant value = p_value;
 	ERR_FAIL_COND_V(!_p->typed.validate(value, "custom binary search"), -1);
 

core/variant/array.h

@@ -84,8 +84,8 @@ public:
 	void sort();
 	void sort_custom(const Callable &p_callable);
 	void shuffle();
-	int bsearch(const Variant &p_value, bool p_before = true);
-	int bsearch_custom(const Variant &p_value, const Callable &p_callable, bool p_before = true);
+	int bsearch(const Variant &p_value, bool p_before = true) const;
+	int bsearch_custom(const Variant &p_value, const Callable &p_callable, bool p_before = true) const;
 	void reverse();
 
 	int find(const Variant &p_value, int p_from = 0) const;

doc/classes/Array.xml

@@ -207,7 +207,7 @@
 				[b]Note:[/b] Calling this function is not the same as writing [code]array[-1][/code]. If the array is empty, accessing by index will pause project execution when running from the editor.
 			</description>
 		</method>
-		<method name="bsearch">
+		<method name="bsearch" qualifiers="const">
 			<return type="int" />
 			<param index="0" name="value" type="Variant" />
 			<param index="1" name="before" type="bool" default="true" />
@@ -216,7 +216,7 @@
 				[b]Note:[/b] Calling [method bsearch] on an unsorted array results in unexpected behavior.
 			</description>
 		</method>
-		<method name="bsearch_custom">
+		<method name="bsearch_custom" qualifiers="const">
 			<return type="int" />
 			<param index="0" name="value" type="Variant" />
 			<param index="1" name="func" type="Callable" />
@@ -269,7 +269,7 @@
 				array.fill(0) # Initialize the 10 elements to 0.
 				[/gdscript]
 				[csharp]
-				var array = new Godot.Collections.Array{};
+				var array = new Godot.Collections.Array();
 				array.Resize(10);
 				array.Fill(0); // Initialize the 10 elements to 0.
 				[/csharp]
@@ -340,7 +340,7 @@
 				print(["inside", 7].has("7")) # False
 				[/gdscript]
 				[csharp]
-				var arr = new Godot.Collections.Array{"inside", 7};
+				var arr = new Godot.Collections.Array { "inside", 7 };
 				// has is renamed to Contains
 				GD.Print(arr.Contains("inside")); // True
 				GD.Print(arr.Contains("outside")); // False
@@ -357,7 +357,7 @@
 				[/gdscript]
 				[csharp]
 				// As there is no "in" keyword in C#, you have to use Contains
-				var array = new Godot.Collections.Array{2, 4, 6, 8};
+				var array = new Godot.Collections.Array { 2, 4, 6, 8 };
 				if (array.Contains(2))
 				{
 				    GD.Print("Contains!");
@@ -440,10 +440,16 @@
 			<return type="Variant" />
 			<description>
 				Returns a random value from the target array.
-				[codeblock]
+				[codeblocks]
+				[gdscript]
 				var array: Array[int] = [1, 2, 3, 4]
 				print(array.pick_random())  # Prints either of the four numbers.
-				[/codeblock]
+				[/gdscript]
+				[csharp]
+				var array = new Godot.Collections.Array { 1, 2, 3, 4 };
+				GD.Print(array.PickRandom()); // Prints either of the four numbers.
+				[/csharp]
+				[/codeblocks]
 			</description>
 		</method>
 		<method name="pop_at">
@@ -562,7 +568,7 @@
 				Returns the slice of the [Array], from [param begin] (inclusive) to [param end] (exclusive), as a new [Array].
 				The absolute value of [param begin] and [param end] will be clamped to the array size, so the default value for [param end] makes it slice to the size of the array by default (i.e. [code]arr.slice(1)[/code] is a shorthand for [code]arr.slice(1, arr.size())[/code]).
 				If either [param begin] or [param end] are negative, they will be relative to the end of the array (i.e. [code]arr.slice(0, -2)[/code] is a shorthand for [code]arr.slice(0, arr.size() - 2)[/code]).
-				If specified, [param step] is the relative index between source elements. It can be negative, then [param begin] must be higher than [param end]. For example, [code][0, 1, 2, 3, 4, 5].slice(5, 1, -2)[/code] returns [code][5, 3][/code]).
+				If specified, [param step] is the relative index between source elements. It can be negative, then [param begin] must be higher than [param end]. For example, [code][0, 1, 2, 3, 4, 5].slice(5, 1, -2)[/code] returns [code][5, 3][/code].
 				If [param deep] is true, each element will be copied by value rather than by reference.
 			</description>
 		</method>
@@ -579,7 +585,9 @@
 				print(strings) # Prints [string1, string10, string11, string2]
 				[/gdscript]
 				[csharp]
-				// There is no sort support for Godot.Collections.Array
+				var strings = new Godot.Collections.Array { "string1", "string2", "string10", "string11" };
+				strings.Sort();
+				GD.Print(strings); // Prints [string1, string10, string11, string2]
 				[/csharp]
 				[/codeblocks]
 				To perform natural order sorting, you can use [method sort_custom] with [method String.naturalnocasecmp_to] as follows:

modules/mono/glue/GodotSharp/GodotSharp/Core/NativeInterop/NativeFuncs.cs

@@ -365,21 +365,44 @@ namespace Godot.NativeInterop
 
         public static partial int godotsharp_array_add(ref godot_array p_self, in godot_variant p_item);
 
+        public static partial int godotsharp_array_add_range(ref godot_array p_self, in godot_array p_collection);
+
+        public static partial int godotsharp_array_binary_search(ref godot_array p_self, int p_index, int p_count, in godot_variant p_value);
+
         public static partial void
             godotsharp_array_duplicate(ref godot_array p_self, godot_bool p_deep, out godot_array r_dest);
 
-        public static partial int godotsharp_array_index_of(ref godot_array p_self, in godot_variant p_item);
+        public static partial void godotsharp_array_fill(ref godot_array p_self, in godot_variant p_value);
+
+        public static partial int godotsharp_array_index_of(ref godot_array p_self, in godot_variant p_item, int p_index = 0);
 
         public static partial void godotsharp_array_insert(ref godot_array p_self, int p_index, in godot_variant p_item);
 
+        public static partial int godotsharp_array_last_index_of(ref godot_array p_self, in godot_variant p_item, int p_index);
+
+        public static partial void godotsharp_array_make_read_only(ref godot_array p_self);
+
+        public static partial void godotsharp_array_max(ref godot_array p_self, out godot_variant r_value);
+
+        public static partial void godotsharp_array_min(ref godot_array p_self, out godot_variant r_value);
+
+        public static partial void godotsharp_array_pick_random(ref godot_array p_self, out godot_variant r_value);
+
+        public static partial godot_bool godotsharp_array_recursive_equal(ref godot_array p_self, in godot_array p_other);
+
         public static partial void godotsharp_array_remove_at(ref godot_array p_self, int p_index);
 
         public static partial Error godotsharp_array_resize(ref godot_array p_self, int p_new_size);
 
-        public static partial void godotsharp_array_make_read_only(ref godot_array p_self);
+        public static partial void godotsharp_array_reverse(ref godot_array p_self);
 
         public static partial void godotsharp_array_shuffle(ref godot_array p_self);
 
+        public static partial void godotsharp_array_slice(ref godot_array p_self, int p_start, int p_end,
+            int p_step, godot_bool p_deep, out godot_array r_dest);
+
+        public static partial void godotsharp_array_sort(ref godot_array p_self);
+
         public static partial void godotsharp_array_to_string(ref godot_array p_self, out godot_string r_str);
 
         // Dictionary

modules/mono/glue/runtime_interop.cpp

@@ -992,18 +992,78 @@ int32_t godotsharp_array_add(Array *p_self, const Variant *p_item) {
 	return p_self->size();
 }
 
+int32_t godotsharp_array_add_range(Array *p_self, const Array *p_collection) {
+	p_self->append_array(*p_collection);
+	return p_self->size();
+}
+
+int32_t godotsharp_array_binary_search(const Array *p_self, int32_t p_index, int32_t p_length, const Variant *p_value) {
+	ERR_FAIL_COND_V(p_index < 0, -1);
+	ERR_FAIL_COND_V(p_length < 0, -1);
+	ERR_FAIL_COND_V(p_self->size() - p_index < p_length, -1);
+
+	const Variant &value = *p_value;
+	const Array &array = *p_self;
+
+	int lo = p_index;
+	int hi = p_index + p_length - 1;
+	while (lo <= hi) {
+		int mid = lo + ((hi - lo) >> 1);
+		const Variant &mid_item = array[mid];
+
+		if (mid_item == value) {
+			return mid;
+		}
+		if (mid_item < value) {
+			lo = mid + 1;
+		} else {
+			hi = mid - 1;
+		}
+	}
+
+	return ~lo;
+}
+
 void godotsharp_array_duplicate(const Array *p_self, bool p_deep, Array *r_dest) {
 	memnew_placement(r_dest, Array(p_self->duplicate(p_deep)));
 }
 
-int32_t godotsharp_array_index_of(const Array *p_self, const Variant *p_item) {
-	return p_self->find(*p_item);
+void godotsharp_array_fill(Array *p_self, const Variant *p_value) {
+	p_self->fill(*p_value);
+}
+
+int32_t godotsharp_array_index_of(const Array *p_self, const Variant *p_item, int32_t p_index = 0) {
+	return p_self->find(*p_item, p_index);
 }
 
 void godotsharp_array_insert(Array *p_self, int32_t p_index, const Variant *p_item) {
 	p_self->insert(p_index, *p_item);
 }
 
+int32_t godotsharp_array_last_index_of(const Array *p_self, const Variant *p_item, int32_t p_index) {
+	return p_self->rfind(*p_item, p_index);
+}
+
+void godotsharp_array_make_read_only(Array *p_self) {
+	p_self->make_read_only();
+}
+
+void godotsharp_array_max(const Array *p_self, Variant *r_value) {
+	*r_value = p_self->max();
+}
+
+void godotsharp_array_min(const Array *p_self, Variant *r_value) {
+	*r_value = p_self->min();
+}
+
+void godotsharp_array_pick_random(const Array *p_self, Variant *r_value) {
+	*r_value = p_self->pick_random();
+}
+
+bool godotsharp_array_recursive_equal(const Array *p_self, const Array *p_other) {
+	return p_self->recursive_equal(*p_other, 0);
+}
+
 void godotsharp_array_remove_at(Array *p_self, int32_t p_index) {
 	p_self->remove_at(p_index);
 }
@@ -1012,14 +1072,22 @@ int32_t godotsharp_array_resize(Array *p_self, int32_t p_new_size) {
 	return (int32_t)p_self->resize(p_new_size);
 }
 
-void godotsharp_array_make_read_only(Array *p_self) {
-	p_self->make_read_only();
+void godotsharp_array_reverse(Array *p_self) {
+	p_self->reverse();
 }
 
 void godotsharp_array_shuffle(Array *p_self) {
 	p_self->shuffle();
 }
 
+void godotsharp_array_slice(Array *p_self, int32_t p_start, int32_t p_end, int32_t p_step, bool p_deep, Array *r_dest) {
+	memnew_placement(r_dest, Array(p_self->slice(p_start, p_end, p_step, p_deep)));
+}
+
+void godotsharp_array_sort(Array *p_self) {
+	p_self->sort();
+}
+
 void godotsharp_array_to_string(const Array *p_self, String *r_str) {
 	*r_str = Variant(*p_self).operator String();
 }
@@ -1442,13 +1510,24 @@ static const void *unmanaged_callbacks[]{
 	(void *)godotsharp_array_destroy,
 	(void *)godotsharp_dictionary_destroy,
 	(void *)godotsharp_array_add,
+	(void *)godotsharp_array_add_range,
+	(void *)godotsharp_array_binary_search,
 	(void *)godotsharp_array_duplicate,
+	(void *)godotsharp_array_fill,
 	(void *)godotsharp_array_index_of,
 	(void *)godotsharp_array_insert,
+	(void *)godotsharp_array_last_index_of,
+	(void *)godotsharp_array_make_read_only,
+	(void *)godotsharp_array_max,
+	(void *)godotsharp_array_min,
+	(void *)godotsharp_array_pick_random,
+	(void *)godotsharp_array_recursive_equal,
 	(void *)godotsharp_array_remove_at,
 	(void *)godotsharp_array_resize,
-	(void *)godotsharp_array_make_read_only,
+	(void *)godotsharp_array_reverse,
 	(void *)godotsharp_array_shuffle,
+	(void *)godotsharp_array_slice,
+	(void *)godotsharp_array_sort,
 	(void *)godotsharp_array_to_string,
 	(void *)godotsharp_dictionary_try_get_value,
 	(void *)godotsharp_dictionary_set_value,