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Implementation Compatibility

This appendix reports measured programs; it does not define language semantics. The reference remains normative even where a compiler does not yet implement a rule.

Reference associations · native release only; each row covers the named section
SectionCoverageRelated test IDs
Arrays And Containerspartial29_generic_stack (design pass · native-release)
surface/container_members (pass · native-release)
Bindings And Scopepartial01_word_count (design pass · native-release)
Compatibilitydesign onlyNo executable claim
Compile Timepartial62_reflection_fields (design pass · native-release)
63_compiletime_tables (design pass · native-release)
Control Flow And Iterationpartial32_bytecode_vm (design pass · native-release)
Debuggingnot measuredtests/test_core_editor.py::test_vscode_core_debug (not measured)
Design Statusdesign onlyNo executable claim
Errors And Forwardingpartial28_error_pipeline (design pass · native-release)
61_module_error_flow (design pass · native-release)
Executionnot measuredtests/test_core_testing.py::test_core_native_tests_imports (not measured)
Expressions And Operatorsdesign onlyNo executable claim
Functions And Callspartial30_closure_callbacks (design pass · native-release)
60_function_combinators (design pass · native-release)
handle/values (pass · native-release)
Indexdesign onlyNo executable claim
Interoperabilitydesign onlyNo executable claim
Lexical Structurepartial14_tokenizer (design pass · native-release)
Literalspartial19_bit_packet (design pass · native-release)
Modules And Importspartial61_module_error_flow (design pass · native-release)
tests/test_core_editor.py::test_references_follow_bindings_and_unsaved_imports (not measured)
Numeric Typespartial19_bit_packet (design pass · native-release)
20_fnv_hash (design pass · native-release)
Objectspartial37_record_query (design pass · native-release)
Operators And Precedencedesign onlyNo executable claim
Physical Quantitiespartial11_units_physics (design pass · native-release)
44_units_flight (design pass · native-release)
tests/test_core_units.py::test_quantity_kernel_erasure (not measured)
Ranges And Iterationpartial31_custom_iterator (design pass · native-release)
Refinements And Effectsdesign onlyNo executable claim
Stringspartial53_unicode_wrap (design pass · native-release)
grapheme/length (pass · native-release)
Testingdesign onlyNo executable claim
Types And Conversionsdesign onlyNo executable claim
Valuespartial27_game_simulation (design pass · native-release)

See the full status page for source revision, compiler identity, target and individual failures. A native release result is not WebAssembly coverage or an all-platform guarantee. Related pytest IDs are links to tests, not results, unless this build explicitly ran them.

Historical implementation

The Python/µDewy compiler and its releases are archived. Historical results do not count as coverage of the current compiler.