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Converter: Fix 'bytes' field decoding into an empty array, now decoded into an empty Buffer #1020

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merged 5 commits into from
Apr 30, 2018

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assaf-xm
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Should fix #1012

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@dcodeIO can you take a look on the fix?

src/converter.js Outdated
@@ -245,7 +245,7 @@ converter.toObject = function toObject(mtype) {
("}else")
("d%s=o.longs===String?%j:%i", prop, field.typeDefault.toString(), field.typeDefault.toNumber());
else if (field.bytes) gen
("d%s=o.bytes===String?%j:%s", prop, String.fromCharCode.apply(String, field.typeDefault), "[" + Array.prototype.slice.call(field.typeDefault).join(",") + "]");
("d%s=o.bytes===String?%j:o.bytes===Array?%s:%s", prop, String.fromCharCode.apply(String, field.typeDefault), "[" + Array.prototype.slice.call(field.typeDefault).join(",") + "]", "util.newBuffer([])");
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Seems the default for buffer doesn't use the default value. What do you think of making an array all the time, similar to how it was before, but wrapping it with util.newBuffer conditionally for the !== Array case?

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Pushed a fix

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Hmm, this'd still generate the same array literal two times, right?

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It looks like:
object.buf = options.bytes === String ? "" : options.bytes === Array ? [] : $util.newBuffer([]);

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Yeah, if the default value is empty. What's on my mind is something along the lines of:

if (options.bytes === String) object.buf = "...";
else {
  object.buf = [...];
  if (options.bytes !== Array) object.buf = $util.newBuffer(object.buf);
}

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OK possible as well, pushed now.
The generated code is:

    if (options.bytes === String)
        object.buf = "";
    else {
        object.buf = [];
        if (options.bytes !== Array)
            object.buf = $util.newBuffer(object.buf);
        }

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@dcodeIO , is it better now?

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@dcodeIO , the PR is ready for a second review.

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dcodeIO commented Apr 25, 2018

Thanks for the heads up! Looking good to me now, except that it has some unnecessary whitespace in the gened parts.

src/converter.js Outdated
else if (field.bytes) {
var arrayDefault = "[" + Array.prototype.slice.call(field.typeDefault).join(",") + "]";
gen
("if(o.bytes===String) d%s=%j", prop, String.fromCharCode.apply(String, field.typeDefault))
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For example, can remove whitespace at ) d

src/converter.js Outdated
var arrayDefault = "[" + Array.prototype.slice.call(field.typeDefault).join(",") + "]";
gen
("if(o.bytes===String) d%s=%j", prop, String.fromCharCode.apply(String, field.typeDefault))
("else {")
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at e {

src/converter.js Outdated
("if(o.bytes===String) d%s=%j", prop, String.fromCharCode.apply(String, field.typeDefault))
("else {")
("d%s=%s", prop, arrayDefault)
("if(o.bytes!==Array) d%s=util.newBuffer(d%s)", prop, prop)
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at ) d

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100%, whitespaces were removed

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@dcodeIO - I hope it's ready now

@dcodeIO dcodeIO merged commit a927a66 into protobufjs:master Apr 30, 2018
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dcodeIO commented Apr 30, 2018

Thank you! :)

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assaf-xm commented May 8, 2018

@dcodeIO , Hi, when the next release including this fix is expected?

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dcodeIO commented May 8, 2018

There are some build issues with node v10 currently that I haven't yet been able to investigate.

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@dcodeIO , when do you expect the next release to be issued?

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2 participants