Squashed 'third_party/flatbuffers/' changes from d6a8dbd26..338393f85

338393f85 Documentation updates for Optional Scalars (#6014) (#6270)
c27bc2d76 [C++] Add ParseJson(), Parser(Parser&&), update fuzzers (#6284)
bc518a512 Fixed FlexBufferBuilder asserting on duplicate keys
100c59054 Added a few more paths for auto labeler (#6281)
e58c18244 Add --require-explicit-ids to require explicit ids (#6277)
69a8b2a57 idl_gen_json_schema.cpp: Changed generation of array element types (#6253)
25eba6f35 fix typo (#6280)
e1f0f75ba Updated Ms build Action to fix build issue (#6279)
faeb04fbe Add type annotation to unspecified array (#6264)
537212afe [Swift] Adds a format file and reformats the swift project (#6250)
6764f25d9 Adds a fix for enum generation (#6263)

Change-Id: I716bd4d2521fb0a673e50a699cef761e042052b2
git-subtree-dir: third_party/flatbuffers
git-subtree-split: 338393f854eb5ba24761a22cd9316ff5cee4eab0
diff --git a/tests/FlatBuffers.Test.Swift/Tests/FlatBuffers.Test.SwiftTests/FlatBuffersTests.swift b/tests/FlatBuffers.Test.Swift/Tests/FlatBuffers.Test.SwiftTests/FlatBuffersTests.swift
index cac1740..a605600 100644
--- a/tests/FlatBuffers.Test.Swift/Tests/FlatBuffers.Test.SwiftTests/FlatBuffersTests.swift
+++ b/tests/FlatBuffers.Test.Swift/Tests/FlatBuffers.Test.SwiftTests/FlatBuffersTests.swift
@@ -1,141 +1,176 @@
+/*
+ * Copyright 2020 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.
+ */
+
 import XCTest
 @testable import FlatBuffers
 
 final class FlatBuffersTests: XCTestCase {
-    
-    let country = "Norway"
-    
-    func testEndian() { XCTAssertEqual(isLitteEndian, true) }
-    
-    func testOffset() {
-        let o = Offset<Int>()
-        let b = Offset<Int>(offset: 1)
-        XCTAssertEqual(o.isEmpty, true)
-        XCTAssertEqual(b.isEmpty, false)
-    }
-    
-    func testCreateString() {
-        let helloWorld = "Hello, world!"
-        var b = FlatBufferBuilder(initialSize: 16)
-        XCTAssertEqual(b.create(string: country).o, 12)
-        XCTAssertEqual(b.create(string: helloWorld).o, 32)
-        b.clear()
-        XCTAssertEqual(b.create(string: helloWorld).o, 20)
-        XCTAssertEqual(b.create(string: country).o, 32)
-        b.clear()
-        XCTAssertEqual(b.create(string: String(repeating: "a", count: 257)).o, 264)
-    }
-    
-    func testStartTable() {
-        var b = FlatBufferBuilder(initialSize: 16)
-        XCTAssertNoThrow(b.startTable(with: 0))
-        b.clear()
-        XCTAssertEqual(b.create(string: country).o, 12)
-        XCTAssertEqual(b.startTable(with: 0), 12)
-    }
-    
-    func testCreateFinish() {
-        var b = FlatBufferBuilder(initialSize: 16)
-        let countryOff = Country.createCountry(builder: &b, name: country, log: 200, lan: 100)
-        b.finish(offset: countryOff)
-        let v: [UInt8] = [16, 0, 0, 0, 0, 0, 10, 0, 16, 0, 4, 0, 8, 0, 12, 0, 10, 0, 0, 0, 12, 0, 0, 0, 100, 0, 0, 0, 200, 0, 0, 0, 6, 0, 0, 0, 78, 111, 114, 119, 97, 121, 0, 0]
-        XCTAssertEqual(b.sizedByteArray, v)
-    }
-    
-    func testCreateFinishWithPrefix() {
-        var b = FlatBufferBuilder(initialSize: 16)
-        let countryOff = Country.createCountry(builder: &b, name: country, log: 200, lan: 100)
-        b.finish(offset: countryOff, addPrefix: true)
-        let v: [UInt8] = [44, 0, 0, 0, 16, 0, 0, 0, 0, 0, 10, 0, 16, 0, 4, 0, 8, 0, 12, 0, 10, 0, 0, 0, 12, 0, 0, 0, 100, 0, 0, 0, 200, 0, 0, 0, 6, 0, 0, 0, 78, 111, 114, 119, 97, 121, 0, 0]
-        XCTAssertEqual(b.sizedByteArray, v)
-    }
-    
-    func testReadCountry() {
-        let v: [UInt8] = [16, 0, 0, 0, 0, 0, 10, 0, 16, 0, 4, 0, 8, 0, 12, 0, 10, 0, 0, 0, 12, 0, 0, 0, 100, 0, 0, 0, 200, 0, 0, 0, 6, 0, 0, 0, 78, 111, 114, 119, 97, 121, 0, 0]
-        let buffer = ByteBuffer(bytes: v)
-        let c = Country.getRootAsCountry(buffer)
-        XCTAssertEqual(c.lan, 100)
-        XCTAssertEqual(c.log, 200)
-        XCTAssertEqual(c.nameVector, [78, 111, 114, 119, 97, 121])
-        XCTAssertEqual(c.name, country)
-    }
-    
-    func testWriteNullableStrings() {
-        var b = FlatBufferBuilder()
-        XCTAssertTrue(b.create(string: nil).isEmpty)
-        XCTAssertTrue(b.createShared(string: nil).isEmpty)
-    }
-    
-    func testWriteOptionalValues() {
-        var b = FlatBufferBuilder()
-        let root = optional_scalars_ScalarStuff.createScalarStuff(&b,
-                                                                  justI8: 80,
-                                                                  maybeI8: nil,
-                                                                  justU8: 100,
-                                                                  maybeU8: 10,
-                                                                  maybeBool: true,
-                                                                  justEnum: .one,
-                                                                  maybeEnum: nil)
-        b.finish(offset: root)
-        let scalarTable = optional_scalars_ScalarStuff.getRootAsScalarStuff(bb: b.sizedBuffer)
-        XCTAssertEqual(scalarTable.justI8, 80)
-        XCTAssertNil(scalarTable.maybeI8)
-        XCTAssertEqual(scalarTable.maybeBool, true)
-        XCTAssertEqual(scalarTable.defaultI8, 42)
-        XCTAssertEqual(scalarTable.justU8, 100)
-        XCTAssertEqual(scalarTable.maybeU8, 10)
-        XCTAssertEqual(scalarTable.justEnum, .one)
-        XCTAssertNil(scalarTable.maybeEnum)
-    }
+
+  let country = "Norway"
+
+  func testEndian() { XCTAssertEqual(isLitteEndian, true) }
+
+  func testOffset() {
+    let o = Offset<Int>()
+    let b = Offset<Int>(offset: 1)
+    XCTAssertEqual(o.isEmpty, true)
+    XCTAssertEqual(b.isEmpty, false)
+  }
+
+  func testCreateString() {
+    let helloWorld = "Hello, world!"
+    var b = FlatBufferBuilder(initialSize: 16)
+    XCTAssertEqual(b.create(string: country).o, 12)
+    XCTAssertEqual(b.create(string: helloWorld).o, 32)
+    b.clear()
+    XCTAssertEqual(b.create(string: helloWorld).o, 20)
+    XCTAssertEqual(b.create(string: country).o, 32)
+    b.clear()
+    XCTAssertEqual(b.create(string: String(repeating: "a", count: 257)).o, 264)
+  }
+
+  func testStartTable() {
+    var b = FlatBufferBuilder(initialSize: 16)
+    XCTAssertNoThrow(b.startTable(with: 0))
+    b.clear()
+    XCTAssertEqual(b.create(string: country).o, 12)
+    XCTAssertEqual(b.startTable(with: 0), 12)
+  }
+
+  func testCreateFinish() {
+    var b = FlatBufferBuilder(initialSize: 16)
+    let countryOff = Country.createCountry(builder: &b, name: country, log: 200, lan: 100)
+    b.finish(offset: countryOff)
+    let v: [UInt8] = [16, 0, 0, 0, 0, 0, 10, 0, 16, 0, 4, 0, 8, 0, 12, 0, 10, 0, 0, 0, 12, 0, 0, 0, 100, 0, 0, 0, 200, 0, 0, 0, 6, 0, 0, 0, 78, 111, 114, 119, 97, 121, 0, 0]
+    XCTAssertEqual(b.sizedByteArray, v)
+  }
+
+  func testCreateFinishWithPrefix() {
+    var b = FlatBufferBuilder(initialSize: 16)
+    let countryOff = Country.createCountry(builder: &b, name: country, log: 200, lan: 100)
+    b.finish(offset: countryOff, addPrefix: true)
+    let v: [UInt8] = [44, 0, 0, 0, 16, 0, 0, 0, 0, 0, 10, 0, 16, 0, 4, 0, 8, 0, 12, 0, 10, 0, 0, 0, 12, 0, 0, 0, 100, 0, 0, 0, 200, 0, 0, 0, 6, 0, 0, 0, 78, 111, 114, 119, 97, 121, 0, 0]
+    XCTAssertEqual(b.sizedByteArray, v)
+  }
+
+  func testReadCountry() {
+    let v: [UInt8] = [16, 0, 0, 0, 0, 0, 10, 0, 16, 0, 4, 0, 8, 0, 12, 0, 10, 0, 0, 0, 12, 0, 0, 0, 100, 0, 0, 0, 200, 0, 0, 0, 6, 0, 0, 0, 78, 111, 114, 119, 97, 121, 0, 0]
+    let buffer = ByteBuffer(bytes: v)
+    let c = Country.getRootAsCountry(buffer)
+    XCTAssertEqual(c.lan, 100)
+    XCTAssertEqual(c.log, 200)
+    XCTAssertEqual(c.nameVector, [78, 111, 114, 119, 97, 121])
+    XCTAssertEqual(c.name, country)
+  }
+
+  func testWriteNullableStrings() {
+    var b = FlatBufferBuilder()
+    XCTAssertTrue(b.create(string: nil).isEmpty)
+    XCTAssertTrue(b.createShared(string: nil).isEmpty)
+  }
+
+  func testWriteOptionalValues() {
+    var b = FlatBufferBuilder()
+    let root = optional_scalars_ScalarStuff.createScalarStuff(
+      &b,
+      justI8: 80,
+      maybeI8: nil,
+      justU8: 100,
+      maybeU8: 10,
+      maybeBool: true,
+      justEnum: .one,
+      maybeEnum: nil)
+    b.finish(offset: root)
+    let scalarTable = optional_scalars_ScalarStuff.getRootAsScalarStuff(bb: b.sizedBuffer)
+    XCTAssertEqual(scalarTable.justI8, 80)
+    XCTAssertNil(scalarTable.maybeI8)
+    XCTAssertEqual(scalarTable.maybeBool, true)
+    XCTAssertEqual(scalarTable.defaultI8, 42)
+    XCTAssertEqual(scalarTable.justU8, 100)
+    XCTAssertEqual(scalarTable.maybeU8, 10)
+    XCTAssertEqual(scalarTable.justEnum, .one)
+    XCTAssertNil(scalarTable.maybeEnum)
+  }
 }
 
 class Country {
-    
-    static let offsets: (name: VOffset, lan: VOffset, lng: VOffset) = (4, 6, 8)
-    private var __t: Table
-    
-    private init(_ t: Table) {
-        __t = t
-    }
-    
-    var lan: Int32 { let o = __t.offset(6); return o == 0 ? 0 : __t.readBuffer(of: Int32.self, at: o) }
-    var log: Int32 { let o = __t.offset(8); return o == 0 ? 0 : __t.readBuffer(of: Int32.self, at: o) }
-    var nameVector: [UInt8]? { return __t.getVector(at: 4) }
-    var name: String? { let o = __t.offset(4); return o == 0 ? nil : __t.string(at: o) }
-    
-    @inlinable static func getRootAsCountry(_ bb: ByteBuffer) -> Country {
-        return Country(Table(bb: bb, position: Int32(bb.read(def: UOffset.self, position: 0))))
-    }
-    
-    @inlinable static func createCountry(builder: inout FlatBufferBuilder, name: String, log: Int32, lan: Int32) -> Offset<Country> {
-        return createCountry(builder: &builder, offset: builder.create(string: name), log: log, lan: lan)
-    }
-    
-    @inlinable static func createCountry(builder: inout FlatBufferBuilder, offset: Offset<String>, log: Int32, lan: Int32) -> Offset<Country> {
-        let _start = builder.startTable(with: 3)
-        Country.add(builder: &builder, lng: log)
-        Country.add(builder: &builder, lan: lan)
-        Country.add(builder: &builder, name: offset)
-        return Country.end(builder: &builder, startOffset: _start)
-    }
-    
-    @inlinable static func end(builder: inout FlatBufferBuilder, startOffset: UOffset) -> Offset<Country> {
-        return Offset(offset: builder.endTable(at: startOffset))
-    }
-    
-    @inlinable static func add(builder: inout FlatBufferBuilder, name: String) {
-        add(builder: &builder, name: builder.create(string: name))
-    }
-    
-    @inlinable static func add(builder: inout FlatBufferBuilder, name: Offset<String>) {
-        builder.add(offset: name, at: Country.offsets.name)
-    }
-    
-    @inlinable static func add(builder: inout FlatBufferBuilder, lan: Int32) {
-        builder.add(element: lan, def: 0, at: Country.offsets.lan)
-    }
-    
-    @inlinable static func add(builder: inout FlatBufferBuilder, lng: Int32) {
-        builder.add(element: lng, def: 0, at: Country.offsets.lng)
-    }
+
+  static let offsets: (name: VOffset, lan: VOffset, lng: VOffset) = (4, 6, 8)
+  private var __t: Table
+
+  private init(_ t: Table) {
+    __t = t
+  }
+
+  var lan: Int32 { let o = __t.offset(6); return o == 0 ? 0 : __t.readBuffer(of: Int32.self, at: o) }
+  var log: Int32 { let o = __t.offset(8); return o == 0 ? 0 : __t.readBuffer(of: Int32.self, at: o) }
+  var nameVector: [UInt8]? { __t.getVector(at: 4) }
+  var name: String? { let o = __t.offset(4); return o == 0 ? nil : __t.string(at: o) }
+
+  @inlinable
+  static func getRootAsCountry(_ bb: ByteBuffer) -> Country {
+    Country(Table(bb: bb, position: Int32(bb.read(def: UOffset.self, position: 0))))
+  }
+
+  @inlinable
+  static func createCountry(
+    builder: inout FlatBufferBuilder,
+    name: String,
+    log: Int32,
+    lan: Int32) -> Offset<Country>
+  {
+    createCountry(builder: &builder, offset: builder.create(string: name), log: log, lan: lan)
+  }
+
+  @inlinable
+  static func createCountry(
+    builder: inout FlatBufferBuilder,
+    offset: Offset<String>,
+    log: Int32,
+    lan: Int32) -> Offset<Country>
+  {
+    let _start = builder.startTable(with: 3)
+    Country.add(builder: &builder, lng: log)
+    Country.add(builder: &builder, lan: lan)
+    Country.add(builder: &builder, name: offset)
+    return Country.end(builder: &builder, startOffset: _start)
+  }
+
+  @inlinable
+  static func end(builder: inout FlatBufferBuilder, startOffset: UOffset) -> Offset<Country> {
+    Offset(offset: builder.endTable(at: startOffset))
+  }
+
+  @inlinable
+  static func add(builder: inout FlatBufferBuilder, name: String) {
+    add(builder: &builder, name: builder.create(string: name))
+  }
+
+  @inlinable
+  static func add(builder: inout FlatBufferBuilder, name: Offset<String>) {
+    builder.add(offset: name, at: Country.offsets.name)
+  }
+
+  @inlinable
+  static func add(builder: inout FlatBufferBuilder, lan: Int32) {
+    builder.add(element: lan, def: 0, at: Country.offsets.lan)
+  }
+
+  @inlinable
+  static func add(builder: inout FlatBufferBuilder, lng: Int32) {
+    builder.add(element: lng, def: 0, at: Country.offsets.lng)
+  }
 }