Allan Shortlidge ba46170b54 Implement type checking for the #_hasSymbol directive. The directive takes an expression which must resolve at compile time to a single concrete declaration. There are a few kinds of expressions which we intend to accept: ...

- Unapplied functions: `if #_hasSymbol(foo(_:))`
- Member references: `if #_hasSymbol(a.x)`
- `.self` expressions on static metatypes: `if #_hasSymbol(SomeEnum.self)`
- Dot syntax call expressions with unapplied functions: `if #_hasSymbol(SomeType.init(_:)`

Additionally, we diagnose when the concretely referenced declaration is not weak linked since this likely indicates that the programmer misidentified the declaration they wish to check or the build is not configured in a way such that the check will be meaningful.

Resolves rdar://99826340

2022-09-19 10:40:37 -07:00

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implementation-only-imports

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implementation-only-override

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public-private-sdk

[Sema] Consider modules imported from more paths as private

2022-04-18 14:37:48 -07:00

accessibility_multi_other_module.swift

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accessibility_multi_other.swift

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availability_enum_case_other.swift

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availability_multi_other.swift

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bad.accessnotes

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call_as_function_other_module.swift

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circularity_multifile_error_helper.swift

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composition_extension_usage.swift

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conformance_availability_overlapping_other.swift

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diag_non_ephemeral_globals.swift

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diag_non_ephemeral_module1.swift

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diag_non_ephemeral_module2.swift

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diag_ownership_incompatibility.h

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diag_values_of_module_type_foo.swift

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dynamic_replacements_init_A.swift

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enum_conformance_synthesis_other.swift

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enum_multi_file_helper.swift

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enum_raw_multi1.swift

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enum_raw_multi2.swift

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enum_raw_representable_explicit_multi_file_2.swift

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enum_with_raw_type.swift

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exhaustive_switch_testable_helper.swift

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extra.accessnotes

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fixits-derived-conformances-multifile.swift

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forbid_typecheck_2.swift

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has_symbol_helper.swift

Implement type checking for the #_hasSymbol directive. The directive takes an expression which must resolve at compile time to a single concrete declaration. There are a few kinds of expressions which we intend to accept:

2022-09-19 10:40:37 -07:00

implementation-only-import-in-decls-helper.swift

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implementation-only-import-in-decls-public-helper.swift

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implicit_initializer_multi_other.swift

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rdar32973206_a.swift

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rdar32973206_b.swift

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rdar32973206_c.swift

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struct_equatable_hashable_other.swift

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unsupported_recursive_value_type_multifile_helper.swift

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where_clause_across_module_boundaries_module.swift

[Sema] TypeCheckProtocolInference: using trailingWhereClause to get self bounds in source file.

2022-04-12 22:57:47 +08:00