fix: support for options with repeated_value: [ "foo", "bar" ] (protobufjs#1574)

Co-authored-by: Alexander Fenster <fenster@google.com>

Author: doochik

src/parse.js

@@ -602,7 +602,23 @@ function parse(source, root, options) {
                     skip(":");
                     if (peek() === "{")
                         value = parseOptionValue(parent, name + "." + token);
-                    else {
+                    else if (peek() === "[") {
+                        // option (my_option) = {
+                        //     repeated_value: [ "foo", "bar" ]
+                        // };
+                        value = [];
+                        var lastValue;
+                        if (skip("[", true)) {
+                            do {
+                                lastValue = readValue(true);
+                                value.push(lastValue);
+                            } while (skip(",", true));
+                            skip("]");
+                            if (typeof lastValue !== "undefined") {
+                                setOption(parent, name + "." + token, lastValue);
+                            }
+                        }
+                    } else {
                         value = readValue(true);
                         setOption(parent, name + "." + token, value);
                     }

tests/comp_options-parse.js

@@ -37,13 +37,14 @@ tape.test("Options", function (test) {
 
     test.test(test.name + " - message options (Message)", function (test) {
         var TestMessageOptionsMsg = root.lookup("TestMessageOptionsMsg");
-        test.equal(TestMessageOptionsMsg.options["(mo_rep_msg).value"], 4, "should take second repeated message option");
-        test.equal(TestMessageOptionsMsg.options["(mo_rep_msg).rep_value"], 6, "should take second repeated int in second repeated option");
+        test.equal(TestMessageOptionsMsg.options["(mo_rep_msg).value"], 5, "should take last repeated message option");
+        test.equal(TestMessageOptionsMsg.options["(mo_rep_msg).rep_value"], 8, "should take last repeated int in last repeated option");
         test.equal(TestMessageOptionsMsg.options["(mo_single_msg).value"], 7, "should correctly parse single msg option");
         test.equal(TestMessageOptionsMsg.options["(mo_single_msg).rep_value"], 9, "should take second repeated int in single msg option");
         test.same(TestMessageOptionsMsg.parsedOptions, [
             {"(mo_rep_msg)": {value: 1, rep_value: [2, 3]}},
             {"(mo_rep_msg)": {value: 4, rep_value: [5, 6]}},
+            {"(mo_rep_msg)": {value: 5, rep_value: [7, 8]}},
             {"(mo_single_msg)": {value: 7, rep_value: [8, 9]}},
         ], "should take all message options");
         test.end();

tests/data/options_test.proto

@@ -74,6 +74,10 @@ message TestMessageOptionsMsg {
         rep_value: 5
         rep_value: 6
     };
+    option (mo_rep_msg) = {
+        value: 5
+        rep_value: [ 7, 8 ]
+    };
     option (mo_single_msg).value = 7;
     option (mo_single_msg).rep_value = 8;
     option (mo_single_msg).rep_value = 9;