thanos / ExZarr / 1b1522f4b77ba2ca32069d693118f841b0af8c10-PR-147

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Pull #147

github

closed #146 - implemented 5 new data types for ExZarr v0.9.0:

  1. Boolean Type (:bool)

  - 1 byte per element (stored as 0 or 1)
  - Supports boolean array operations and indexing
  - Full v2 (|b1) and v3 (bool) format support

  2. Complex Number Types

  - :complex64: 8 bytes (2× float32 for real and imaginary parts)
  - :complex128: 16 bytes (2× float64 for real and imaginary parts)
  - Binary layout: [real, imag, real, imag, ...]
  - Full NumPy compatibility (<c8, <c16)

  3. Temporal Types

  - :datetime64: 8 bytes (signed int64 microseconds since Unix epoch)
  - :timedelta64: 8 bytes (signed int64 microseconds duration)
  - ISO 8601 datetime parsing support
  - Conversion to/from Elixir DateTime and NaiveDateTime

  Files Modified

  1. lib/ex_zarr/data_type.ex: Added type definitions, pack/unpack functions, type predicates, and datetime helper functions
  2. lib/ex_zarr/storage.ex: Updated dtype string conversions for v2 format
  3. lib/ex_zarr/array.ex: Added dtype_size and encode_fill_value support

  Tests Created

  - test/ex_zarr/data_type_bool_test.exs: 30+ tests for boolean operations
  - test/ex_zarr/data_type_complex_test.exs: 40+ tests for complex number operations
  - test/ex_zarr/data_type_datetime_test.exs: 44+ tests for temporal operations

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