consts.go

package gandalff

import (
	"time"
)

const (
	// The default capacity of a series.
	DEFAULT_SERIES_INITIAL_CAPACITY = 10

	// The default capacity of a hash map.
	DEFAULT_HASH_MAP_INITIAL_CAPACITY = 1024

	// The default capacity of a dense map array.
	DEFAULT_DENSE_MAP_ARRAY_INITIAL_CAPACITY = 64

	// Number of threads to use for parallel operations.
	THREADS_NUMBER = 16

	// Minimum number of elements to use parallel operations.
	MINIMUM_PARALLEL_SIZE_1 = 16_384
	MINIMUM_PARALLEL_SIZE_2 = 131_072

	HASH_MAGIC_NUMBER      = int64(0xa8f4979b77e3f93)
	HASH_MAGIC_NUMBER_NULL = int64(0x7fff4979b77e3f93)
	HASH_NULL_KEY          = int64(0x7ff8000000000001)

	INF_TEXT        = "Inf"
	NA_TEXT         = "Na"
	BOOL_TRUE_TEXT  = "true"
	BOOL_FALSE_TEXT = "false"

	CSV_READER_DEFAULT_DELIMITER           = ','
	CSV_READER_DEFAULT_HEADER              = true
	CSV_READER_DEFAULT_GUESS_DATA_TYPE_LEN = 1000

	XLSX_READER_DEFAULT_GUESS_DATA_TYPE_LEN = 1000
)

////////////////////////////////			ENUMS AND INTERFACES

type SeriesSortOrder int16

const (
	// The series is not sorted.
	SORTED_NONE SeriesSortOrder = iota
	// The series is sorted in ascending order.
	SORTED_ASC
	// The series is sorted in descending order.
	SORTED_DESC
)

type any interface{}

type MapFunc func(v any) any
type MapFuncNull func(v any, isNull bool) (any, bool)

////////////////////////////////			NULLABLE TYPES

type NullableBool struct {
	Valid bool
	Value bool
}

type NullableInt8 struct {
	Valid bool
	Value int8
}

type NullableInt16 struct {
	Valid bool
	Value int16
}

type NullableInt struct {
	Valid bool
	Value int
}

type NullableInt32 struct {
	Valid bool
	Value int32
}

type NullableInt64 struct {
	Valid bool
	Value int64
}

type NullableFloat32 struct {
	Valid bool
	Value float32
}

type NullableFloat64 struct {
	Valid bool
	Value float64
}

type NullableString struct {
	Valid bool
	Value string
}

type NullableTime struct {
	Valid bool
	Value time.Time
}

type NullableDuration struct {
	Valid bool
	Value time.Duration
}