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PiperOrigin-RevId: 293893031
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rafikamal 2020-02-07 14:16:55 -08:00 committed by Rafi Kamal
parent f0cb9cdb95
commit 46b0fd9cec
1 changed files with 27 additions and 10 deletions
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37
js/experimental/runtime/kernel/lazy_accessor.js
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@ -1482,18 +1482,35 @@ class LazyAccessor {
* @private
*/
getRepeatedMessageArray_(fieldNumber, instanceCreator, pivot) {
// This method can be shortened using getFieldWithDefault and
// getRepeatedNonPrimitive methods. But that will require creating and
// passing a reader closure every time getRepeatedMessageArray_ is called,
// which is expensive.
checkInstanceCreator(instanceCreator);
const bytesInstanceCreator = (bufferDecoder) =>
instanceCreator(LazyAccessor.fromBufferDecoder_(bufferDecoder, pivot));
const readMessageFunc = (bufferDecoder, start) =>
bytesInstanceCreator(reader.readDelimited(bufferDecoder, start));
checkFieldNumber(fieldNumber);
const readRepeatedMessageFunc = (indexArray, bufferDecoder) =>
readRepeatedNonPrimitive(indexArray, bufferDecoder, readMessageFunc);
const encoder = (writer, fieldNumber, values) =>
writeRepeatedMessage(writer, fieldNumber, values);
return this.getFieldWithDefault_(
fieldNumber, /* defaultValue= */[], readRepeatedMessageFunc, encoder);
const field = this.fields_.get(fieldNumber);
if (field === undefined) {
return [];
}
if (field.hasDecodedValue()) {
return field.getDecodedValue();
}
const indexArray = checkDefAndNotNull(field.getIndexArray());
const result = new Array(indexArray.length);
for (let i = 0; i < indexArray.length; i++) {
validateWireType(indexArray[i], WireType.DELIMITED);
const subMessageBuffer = reader.readDelimited(
checkDefAndNotNull(this.bufferDecoder_),
Field.getStartIndex(indexArray[i]));
result[i] = instanceCreator(
LazyAccessor.fromBufferDecoder_(subMessageBuffer, pivot));
}
field.setCache(result, writeRepeatedMessage);
return result;
}
/**