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Fix a memory leak introduced in #6418 #6778

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merged 2 commits into from
Oct 19, 2020
Merged

Fix a memory leak introduced in #6418 #6778

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var-const Oct 19, 2020
1390572
changelog
var-const Oct 19, 2020
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2 changes: 2 additions & 0 deletions Firestore/CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@
setting. Timestamp fields that read from a `FIRDocumentSnapshot` now always
return `FIRTimestamp` objects. Use `FIRTimestamp.dateValue` to convert to
`NSDate` if required.
- [fixed] Fixed a memory leak introduced in 1.18.0 that may manifest when
serializing queries containing equality or non-equality comparisons.

# v1.19.0
- [changed] Internal improvements for future C++ and Unity support. Includes a
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24 changes: 14 additions & 10 deletions Firestore/core/src/remote/serializer.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -1102,30 +1102,34 @@ google_firestore_v1_StructuredQuery_Filter Serializer::EncodeSingularFilter(
const FieldFilter& filter) const {
google_firestore_v1_StructuredQuery_Filter result{};

if (filter.op() == Filter::Operator::Equal ||
filter.op() == Filter::Operator::NotEqual) {
bool is_unary = (filter.op() == Filter::Operator::Equal ||
filter.op() == Filter::Operator::NotEqual) &&
(filter.value().is_nan() || filter.value().is_null());
if (is_unary) {
result.which_filter_type =
google_firestore_v1_StructuredQuery_Filter_unary_filter_tag;
result.unary_filter.which_operand_type =
google_firestore_v1_StructuredQuery_UnaryFilter_field_tag;
result.unary_filter.field.field_path = EncodeFieldPath(filter.field());

bool is_equality = filter.op() == Filter::Operator::Equal;
if (filter.value().is_nan()) {
auto op =
filter.op() == Filter::Operator::Equal
result.unary_filter.op =
is_equality
? google_firestore_v1_StructuredQuery_UnaryFilter_Operator_IS_NAN
: google_firestore_v1_StructuredQuery_UnaryFilter_Operator_IS_NOT_NAN; // NOLINT
result.unary_filter.op = op;
return result;

} else if (filter.value().is_null()) {
auto op =
filter.op() == Filter::Operator::Equal
result.unary_filter.op =
is_equality
? google_firestore_v1_StructuredQuery_UnaryFilter_Operator_IS_NULL
: google_firestore_v1_StructuredQuery_UnaryFilter_Operator_IS_NOT_NULL; // NOLINT
result.unary_filter.op = op;
return result;

} else {
HARD_FAIL("Expected a unary filter");
}

return result;
}

result.which_filter_type =
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