feat: Add useOptionals=all to enable non-field members to be optional. (

#402)

* feat: Add useOptionals=all.

* Update codegen.

Co-authored-by: Stephen Haberman <stephen.haberman@gmail.com>

integration/use-optionals-all/optionals-test.ts

@@ -0,0 +1,101 @@
+import { OptionalsTest, StateEnum } from './test'
+
+describe('useOptionals=all', () => {
+  it('has all optional members', () => {
+    const test: OptionalsTest = {};
+    const data = OptionalsTest.encode(test).finish();
+    const test2 = OptionalsTest.decode(data);
+    expect(test2).toEqual({
+      id: 0,
+      child: undefined,
+      state: StateEnum.UNKNOWN,
+      long: 0,
+      truth: false,
+      description: "",
+      data: new Uint8Array(0),
+
+      repId: [],
+      repChild: [],
+      repState: [],
+      repLong: [],
+      repTruth: [],
+      repDescription: [],
+      repData: [],
+
+      optChild: undefined,
+      optId: undefined,
+      optState: undefined,
+      optLong: undefined,
+      optTruth: undefined,
+      optDescription: undefined,
+      optData: undefined,
+
+      translations: {},
+    });
+  });
+
+  it('allows setting all members, too', () => {
+    const test: OptionalsTest = {
+      id: 1,
+      child: {},
+      state: StateEnum.ON,
+      long: 10,
+      truth: true,
+      description: "hello world",
+      data: Buffer.alloc(2).fill(0x32),
+
+      repId: [1, 2],
+      repChild: [{}, {}],
+      repState: [StateEnum.ON, StateEnum.OFF],
+      repLong: [11, 12],
+      repTruth: [true, false],
+      repDescription: ["hello", "world"],
+      repData: [Buffer.alloc(3).fill(0x33), Buffer.alloc(4).fill(0x34), Buffer.alloc(5).fill(0x35)],
+
+      optChild: {},
+      optId: 2,
+      optState: StateEnum.OFF,
+      optLong: 13,
+      optTruth: true,
+      optDescription: "mumble",
+      optData: Buffer.alloc(6).fill(0x36),
+
+      translations: {
+        "hello": "hallo",
+        "world": "wereld",
+      },
+    };
+    const data = OptionalsTest.encode(test).finish();
+    const test2 = OptionalsTest.decode(data);
+    expect(test2).toEqual({
+      id: 1,
+      child: {},
+      state: StateEnum.ON,
+      long: 10,
+      truth: true,
+      description: "hello world",
+      data: Buffer.alloc(2).fill(0x32),
+
+      repId: [1, 2],
+      repChild: [{}, {}],
+      repState: [StateEnum.ON, StateEnum.OFF],
+      repLong: [11, 12],
+      repTruth: [true, false],
+      repDescription: ["hello", "world"],
+      repData: [Buffer.alloc(3).fill(0x33), Buffer.alloc(4).fill(0x34), Buffer.alloc(5).fill(0x35)],
+
+      optChild: {},
+      optId: 2,
+      optState: StateEnum.OFF,
+      optLong: 13,
+      optTruth: true,
+      optDescription: "mumble",
+      optData: Buffer.alloc(6).fill(0x36),
+
+      translations: {
+        "hello": "hallo",
+        "world": "wereld",
+      },
+    });
+  });
+})

integration/use-optionals-all/parameters.txt

@@ -0,0 +1 @@
+useOptionals=all

integration/use-optionals-all/test.proto

@@ -0,0 +1,39 @@
+syntax = "proto3";
+package optionalstest;
+
+message OptionalsTest {
+  int32 id = 1;
+  Child child = 2;
+  StateEnum state = 3;
+  int64 long = 4;
+  bool truth = 5;
+  string description = 6;
+  bytes data = 7;
+
+  repeated int32 rep_id = 11;
+  repeated Child rep_child = 12;
+  repeated StateEnum rep_state = 13;
+  repeated int64 rep_long = 14;
+  repeated bool rep_truth = 15;
+  repeated string rep_description = 16;
+  repeated bytes rep_data = 17;
+
+  optional int32 opt_id = 21;
+  optional Child opt_child = 22;
+  optional StateEnum opt_state = 23;
+  optional int64 opt_long = 24;
+  optional bool opt_truth = 25;
+  optional string opt_description = 26;
+  optional bytes opt_data = 27;
+
+  map<string, string> translations = 30;
+}
+
+enum StateEnum {
+  UNKNOWN = 0;
+  ON = 2;
+  OFF = 3;
+}
+
+message Child {
+}