Add Boxed Variant interface & Boxed Ion implementation

[jpschorr]

This PR roughs in boxed variants and an implementation of ion values that uses the boxed variant interface.

There are still todos and some additional test failures that will be addressed by future PRs that add functionality.

Of note, that there are expected to be ~80 new conformance test failures that will eventually be fixed as well as passing an additional ~12 conformance tests after all features from #536 are incorporated.

To see the ultimate end-point of this integration, refer to #536 and note the test coverage and conformance test results.

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Attention: Patch coverage is 61.32931% with 256 lines in your changes missing coverage. Please review.

Project coverage is 80.49%. Comparing base (b056bcf) to head (6535718).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
extension/partiql-extension-ion/src/boxed_ion.rs	59.43%	122 Missing and 7 partials ⚠️
partiql-value/src/variant.rs	65.21%	31 Missing and 1 partial ⚠️
extension/partiql-extension-ion/src/util.rs	62.66%	24 Missing and 4 partials ⚠️
partiql-value/src/datum.rs	24.00%	19 Missing ⚠️
partiql-value/src/value.rs	60.52%	13 Missing and 2 partials ⚠️
partiql-eval/src/plan.rs	72.91%	8 Missing and 5 partials ⚠️
partiql-eval/src/eval/expr/mod.rs	0.00%	6 Missing ⚠️
partiql-value/src/boxed_variant.rs	78.94%	4 Missing ⚠️
partiql-ast-passes/src/error.rs	0.00%	3 Missing ⚠️
partiql-eval/src/eval/eval_expr_wrapper.rs	66.66%	2 Missing ⚠️
... and 4 more

❌ Your patch status has failed because the patch coverage (61.32%) is below the target coverage (85.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #540      +/-   ##
==========================================
- Coverage   81.17%   80.49%   -0.68%     
==========================================
  Files          90       95       +5     
  Lines       19727    20266     +539     
  Branches    19727    20266     +539     
==========================================
+ Hits        16014    16314     +300     
- Misses       3293     3520     +227     
- Partials      420      432      +12     

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[github-actions]

Conformance comparison report

	Base (2a3dd4b)	08a95cd	+/-
% Passing	86.97%	85.72%	-1.24%
✅ Passing	5591	5511	-80
❌ Failing	838	918	80
🔶 Ignored	0	0	0
Total Tests	6429	6429	0

Number passing in both: 5511

Number failing in both: 838

Number passing in Base (2a3dd4b) but now fail: 80

Number failing in Base (2a3dd4b) but now pass: 0

⁉️ CONFORMANCE REPORT REGRESSION DETECTED ⁉️. The following test(s) were previously passing but now fail:

Click here to see

• partiql_tests::eval::ion::query::query::order_by::edge_cases::permissive_text_types_compared_by_lexicographical_ordering_of_unicode_scalar_desc
• partiql_tests::eval::ion::primitives::primitives::functions::exists::exists::strict_exists_valid_cases_param_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_decimal_result_null_decimal
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_struct_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_clob_result_null_clob
• partiql_tests::eval::ion::query::query::order_by::edge_cases::strict_structs_should_be_ordered_by_data_types_asc_nulls_last_as_default_for_asc
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_decimal_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::functions::exists::exists::strict_exists_valid_cases_param_1_result_true
• partiql_tests::eval::ion::query::query::order_by::edge_cases::strict_lists_items_should_be_ordered_by_data_types_desc_nulls_first_as_default_for_desc
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_struct_result_null_struct
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_symbol_result_null_symbol
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_struct_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::operators::nary_operators::nary::permissive_equal_bag_different_types_with_null_missing_different_order_true
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_string_result_null_string
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_sexp_result_null_sexp
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_int_result_null_int
• partiql_tests::eval::ion::primitives::primitives::functions::exists::exists::permissive_exists_valid_cases_param_result_false
• partiql_tests::eval::ion::query::query::order_by::edge_cases::strict_lob_types_follow_their_lexicographical_ordering_by_octet_asc
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_sexp_result_null_sexp
• partiql_tests::eval::ion::query::query::order_by::edge_cases::strict_lob_types_should_ordered_desc
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_list_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_clob_is_null_result_true
• partiql_tests::eval::ion::query::query::order_by::edge_cases::permissive_structs_should_be_ordered_by_data_types_asc_nulls_last_as_default_for_asc
• partiql_tests::eval::ion::query::query::order_by::edge_cases::strict_nan_before_inf_then_numeric_values_then_inf_asc
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_string_result_null_string
• partiql_tests::eval::ion::query::query::order_by::edge_cases::permissive_inf_before_numeric_values_then_inf_then_nan_desc
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_blob_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::operators::nary_operators::nary::strict_equal_bag_different_types_with_null_missing_different_order_true
• partiql_tests::eval::ion::query::query::order_by::edge_cases::permissive_lob_types_follow_their_lexicographical_ordering_by_octet_asc
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_int_result_null_int
• partiql_tests::eval::ion::primitives::primitives::operators::nary_operators::nary::permissive_equal_bag_different_types_different_order_true
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_int_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::functions::exists::exists::permissive_exists_valid_cases_param_missing_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_bool_result_null_bool
• partiql_tests::eval::ion::query::query::order_by::edge_cases::permissive_structs_should_be_ordered_by_data_types_desc_nulls_first_as_default_for_desc
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_struct_result_null_struct
• partiql_tests::eval::ion::primitives::primitives::functions::exists::exists::permissive_exists_valid_cases_param_null_result_true
• partiql_tests::eval::ion::primitives::primitives::operators::nary_operators::nary::strict_equal_list_different_types_true
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_clob_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_bool_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_bool_result_null_bool
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_null_result_null
• partiql_tests::eval::ion::query::query::order_by::edge_cases::permissive_nan_before_inf_then_numeric_values_then_inf_asc
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_symbol_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_sexp_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_list_is_null_result_true
• partiql_tests::eval::ion::query::query::order_by::edge_cases::strict_lists_items_should_be_ordered_by_data_types_asc_nulls_last_as_default_for_asc
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_sexp_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_string_is_null_result_true
• partiql_tests::eval::ion::query::query::order_by::edge_cases::strict_text_types_compared_by_lexicographical_ordering_of_unicode_scalar_desc
• partiql_tests::eval::ion::query::query::order_by::edge_cases::permissive_lists_items_should_be_ordered_by_data_types_desc_nulls_first_as_default_for_desc
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_null_is_null_result_true
• partiql_tests::eval::ion::query::query::order_by::edge_cases::permissive_lob_types_should_ordered_desc
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_symbol_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_blob_is_null_result_true
• partiql_tests::eval::ion::query::query::order_by::edge_cases::strict_inf_before_numeric_values_then_inf_then_nan_desc
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_bool_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_blob_result_null_blob
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_blob_result_null_blob
• partiql_tests::eval::ion::primitives::primitives::functions::exists::exists::strict_exists_valid_cases_param_result_false
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_int_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_decimal_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_comparison_sql_null_null_is_null_result_true
• partiql_tests::eval::primitives::path::path::path::permissive_path_index_bag_literal
• partiql_tests::eval::ion::primitives::primitives::functions::exists::exists::strict_exists_valid_cases_param_missing_result_true
• partiql_tests::eval::ion::query::query::order_by::edge_cases::permissive_text_types_compared_by_lexicographical_ordering_of_unicode_scalar_asc
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_symbol_result_null_symbol
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_null_result_null
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_list_result_null_list
• partiql_tests::eval::ion::query::query::order_by::edge_cases::permissive_lists_items_should_be_ordered_by_data_types_asc_nulls_last_as_default_for_asc
• partiql_tests::eval::ion::query::query::order_by::edge_cases::strict_text_types_compared_by_lexicographical_ordering_of_unicode_scalar_asc
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_list_result_null_list
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_comparison_sql_null_string_is_null_result_true
• partiql_tests::eval::ion::primitives::primitives::operators::nary_operators::nary::strict_equal_bag_different_types_different_order_true
• partiql_tests::eval::ion::primitives::primitives::symbol::empty_symbol::permissive_empty_symbol_in_table
• partiql_tests::eval::ion::primitives::primitives::null::null::permissive_null_pass_through_sql_null_decimal_result_null_decimal
• partiql_tests::eval::ion::primitives::primitives::null::null::strict_null_pass_through_sql_null_clob_result_null_clob
• partiql_tests::eval::ion::primitives::primitives::functions::exists::exists::permissive_exists_valid_cases_param_1_result_true
• partiql_tests::eval::ion::query::query::order_by::edge_cases::strict_structs_should_be_ordered_by_data_types_desc_nulls_first_as_default_for_desc
• partiql_tests::eval::ion::primitives::primitives::operators::nary_operators::nary::permissive_equal_list_different_types_true

[alancai98]

One follow-up about the already lowered value. Otherwise initial boxed Ion variant impl looks good.