klion26 commented on code in PR #8189:
URL: https://github.com/apache/arrow-rs/pull/8189#discussion_r2290135878
##########
parquet-variant/src/builder.rs:
##########
@@ -306,93 +296,80 @@ impl ValueBuilder {
self.0.len()
}
- fn new_object<'a>(
- &'a mut self,
- metadata_builder: &'a mut MetadataBuilder,
- ) -> ObjectBuilder<'a> {
- let parent_state = ParentState::variant(self, metadata_builder);
- let validate_unique_fields = false;
- ObjectBuilder::new(parent_state, validate_unique_fields)
- }
-
- fn new_list<'a>(&'a mut self, metadata_builder: &'a mut MetadataBuilder)
-> ListBuilder<'a> {
- let parent_state = ParentState::variant(self, metadata_builder);
- let validate_unique_fields = false;
- ListBuilder::new(parent_state, validate_unique_fields)
- }
-
/// Appends a variant to the builder.
///
/// # Panics
///
/// This method will panic if the variant contains duplicate field names
in objects
/// when validation is enabled. For a fallible version, use
[`ValueBuilder::try_append_variant`]
- fn append_variant<'m, 'd>(
- &mut self,
- variant: Variant<'m, 'd>,
- metadata_builder: &mut MetadataBuilder,
- ) {
+ fn append_variant(mut state: ParentState<'_>, variant: Variant<'_, '_>) {
+ let builder = state.value_builder();
match variant {
- Variant::Null => self.append_null(),
- Variant::BooleanTrue => self.append_bool(true),
- Variant::BooleanFalse => self.append_bool(false),
- Variant::Int8(v) => self.append_int8(v),
- Variant::Int16(v) => self.append_int16(v),
- Variant::Int32(v) => self.append_int32(v),
- Variant::Int64(v) => self.append_int64(v),
- Variant::Date(v) => self.append_date(v),
- Variant::TimestampMicros(v) => self.append_timestamp_micros(v),
- Variant::TimestampNtzMicros(v) =>
self.append_timestamp_ntz_micros(v),
- Variant::TimestampNanos(v) => self.append_timestamp_nanos(v),
- Variant::TimestampNtzNanos(v) =>
self.append_timestamp_ntz_nanos(v),
- Variant::Decimal4(decimal4) => self.append_decimal4(decimal4),
- Variant::Decimal8(decimal8) => self.append_decimal8(decimal8),
- Variant::Decimal16(decimal16) => self.append_decimal16(decimal16),
- Variant::Float(v) => self.append_float(v),
- Variant::Double(v) => self.append_double(v),
- Variant::Binary(v) => self.append_binary(v),
- Variant::String(s) => self.append_string(s),
- Variant::ShortString(s) => self.append_short_string(s),
- Variant::Uuid(v) => self.append_uuid(v),
- Variant::Object(obj) => self.append_object(metadata_builder, obj),
- Variant::List(list) => self.append_list(metadata_builder, list),
- Variant::Time(v) => self.append_time_micros(v),
+ Variant::Null => builder.append_null(),
+ Variant::BooleanTrue => builder.append_bool(true),
+ Variant::BooleanFalse => builder.append_bool(false),
+ Variant::Int8(v) => builder.append_int8(v),
+ Variant::Int16(v) => builder.append_int16(v),
+ Variant::Int32(v) => builder.append_int32(v),
+ Variant::Int64(v) => builder.append_int64(v),
+ Variant::Date(v) => builder.append_date(v),
+ Variant::Time(v) => builder.append_time_micros(v),
+ Variant::TimestampMicros(v) => builder.append_timestamp_micros(v),
+ Variant::TimestampNtzMicros(v) =>
builder.append_timestamp_ntz_micros(v),
+ Variant::TimestampNanos(v) => builder.append_timestamp_nanos(v),
+ Variant::TimestampNtzNanos(v) =>
builder.append_timestamp_ntz_nanos(v),
+ Variant::Decimal4(decimal4) => builder.append_decimal4(decimal4),
+ Variant::Decimal8(decimal8) => builder.append_decimal8(decimal8),
+ Variant::Decimal16(decimal16) =>
builder.append_decimal16(decimal16),
+ Variant::Float(v) => builder.append_float(v),
+ Variant::Double(v) => builder.append_double(v),
+ Variant::Binary(v) => builder.append_binary(v),
+ Variant::String(s) => builder.append_string(s),
+ Variant::ShortString(s) => builder.append_short_string(s),
+ Variant::Uuid(v) => builder.append_uuid(v),
+ Variant::Object(obj) => return Self::append_object(state, obj),
+ Variant::List(list) => return Self::append_list(state, list),
}
+ state.finish();
Review Comment:
Not sure if it's better to move this line to the caller, the `finish` now
is associated with `ParentState`, maybe creating and finishing in the same
place is better?
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