Bump flatbuffers to v24.3.25 version (#6968)

third_party/flatbuffers/reflection/BUILD.bazel

@@ -0,0 +1,14 @@
+filegroup(
+    name = "distribution",
+    srcs = [
+        "BUILD.bazel",
+        "reflection.fbs",
+    ],
+    visibility = ["//visibility:public"],
+)
+
+filegroup(
+    name = "reflection_fbs_schema",
+    srcs = ["reflection.fbs"],
+    visibility = ["//visibility:public"],
+)

third_party/flatbuffers/reflection/generate_code.bat

@@ -1,18 +0,0 @@
-:: Copyright 2015 Google Inc. All rights reserved.
-::
-:: Licensed under the Apache License, Version 2.0 (the "License");
-:: you may not use this file except in compliance with the License.
-:: You may obtain a copy of the License at
-::
-::     http://www.apache.org/licenses/LICENSE-2.0
-::
-:: Unless required by applicable law or agreed to in writing, software
-:: distributed under the License is distributed on an "AS IS" BASIS,
-:: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-:: See the License for the specific language governing permissions and
-:: limitations under the License.
-
-set buildtype=Release
-if "%1"=="-b" set buildtype=%2
-
-..\%buildtype%\flatc.exe --cpp --no-prefix -o ../include/flatbuffers reflection.fbs || exit /b 1

third_party/flatbuffers/reflection/generate_code.sh

@@ -1,18 +0,0 @@
-#!/bin/bash
-#
-# Copyright 2016 Google Inc. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-set -e
-
-../flatc -c --no-prefix -o ../include/flatbuffers reflection.fbs

third_party/flatbuffers/reflection/reflection.fbs

@@ -24,17 +24,26 @@ enum BaseType : byte {
     Vector,
     Obj,     // Used for tables & structs.
     Union,
-    Array
+    Array,
+    Vector64,
+
+    // Add any new type above this value.
+    MaxBaseType
 }
 
 table Type {
     base_type:BaseType;
-    element:BaseType = None;  // Only if base_type == Vector 
+    element:BaseType = None;  // Only if base_type == Vector
                               // or base_type == Array.
     index:int = -1;  // If base_type == Object, index into "objects" below.
                      // If base_type == Union, UnionType, or integral derived
                      // from an enum, index into "enums" below.
+                     // If base_type == Vector && element == Union or UnionType.
     fixed_length:uint16 = 0;  // Only if base_type == Array.
+    /// The size (octets) of the `base_type` field.
+    base_size:uint = 4; // 4 Is a common size due to offsets being that size.
+    /// The size (octets) of the `element` field, if present.
+    element_size:uint = 0;
 }
 
 table KeyValue {
@@ -45,9 +54,10 @@ table KeyValue {
 table EnumVal {
     name:string (required);
     value:long (key);
-    object:Object;  // Will be deprecated in favor of union_type in the future.
+    object:Object (deprecated);
     union_type:Type;
     documentation:[string];
+    attributes:[KeyValue];
 }
 
 table Enum {
@@ -57,6 +67,8 @@ table Enum {
     underlying_type:Type (required);
     attributes:[KeyValue];
     documentation:[string];
+    /// File that this Enum is declared in.
+    declaration_file: string;
 }
 
 table Field {
@@ -71,6 +83,11 @@ table Field {
     key:bool = false;
     attributes:[KeyValue];
     documentation:[string];
+    optional:bool = false;
+    /// Number of padding octets to always add after this field. Structs only.
+    padding:uint16 = 0; 
+    /// If the field uses 64-bit offsets.
+    offset64:bool = false;
 }
 
 table Object {  // Used for both tables and structs.
@@ -81,6 +98,8 @@ table Object {  // Used for both tables and structs.
     bytesize:int;  // For structs.
     attributes:[KeyValue];
     documentation:[string];
+    /// File that this Object is declared in.
+    declaration_file: string;
 }
 
 table RPCCall {
@@ -96,6 +115,26 @@ table Service {
     calls:[RPCCall];
     attributes:[KeyValue];
     documentation:[string];
+    /// File that this Service is declared in.
+    declaration_file: string;
+}
+
+/// New schema language features that are not supported by old code generators.
+enum AdvancedFeatures : ulong (bit_flags) {
+    AdvancedArrayFeatures,
+    AdvancedUnionFeatures,
+    OptionalScalars,
+    DefaultVectorsAndStrings,
+}
+
+/// File specific information.
+/// Symbols declared within a file may be recovered by iterating over all
+/// symbols and examining the `declaration_file` field.
+table SchemaFile {
+  /// Filename, relative to project root.
+  filename:string (required, key);
+  /// Names of included files, relative to project root.
+  included_filenames:[string];
 }
 
 table Schema {
@@ -105,6 +144,10 @@ table Schema {
     file_ext:string;
     root_table:Object;
     services:[Service];             // Sorted.
+    advanced_features:AdvancedFeatures;
+    /// All the files used in this compilation. Files are relative to where
+    /// flatc was invoked.
+    fbs_files:[SchemaFile];         // Sorted.
 }
 
 root_type Schema;

third_party/flatbuffers/reflection/ts/BUILD.bazel

@@ -0,0 +1,15 @@
+load("//:typescript.bzl", "flatbuffer_ts_library")
+
+genrule(
+    name = "copy_schema_to_folder",
+    srcs = ["//reflection:reflection_fbs_schema"],
+    outs = ["reflection.fbs"],
+    cmd = "cp $< $@",
+)
+
+flatbuffer_ts_library(
+    name = "reflection_ts_fbs",
+    srcs = [":reflection.fbs"],
+    gen_reflections = True,
+    visibility = ["//visibility:public"],
+)