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Add experimental feature flag for Implement 'some'

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This commit is contained in:
Angela Laar
2022-08-09 14:35:31 -07:00
parent 1b71154869
commit c3ef34b080
4 changed files with 15 additions and 1 deletions
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3
include/swift/Basic/Features.def
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@@ -138,6 +138,9 @@ EXPERIMENTAL_FEATURE(ParserValidation)
/// Swift Swift parser. /// Swift Swift parser.
EXPERIMENTAL_FEATURE(ParserSequenceFolding) EXPERIMENTAL_FEATURE(ParserSequenceFolding)
/// Enables implicit some while also enabling existential `any`
EXPERIMENTAL_FEATURE(ImplicitSome)
#undef EXPERIMENTAL_FEATURE #undef EXPERIMENTAL_FEATURE
#undef UPCOMING_FEATURE #undef UPCOMING_FEATURE
#undef SUPPRESSIBLE_LANGUAGE_FEATURE #undef SUPPRESSIBLE_LANGUAGE_FEATURE

4
include/swift/Option/FrontendOptions.td
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@@ -579,6 +579,10 @@ def enable_experimental_associated_type_inference :
Flag<["-"], "enable-experimental-associated-type-inference">, Flag<["-"], "enable-experimental-associated-type-inference">,
HelpText<"Enable experimental associated type inference via type witness systems">; HelpText<"Enable experimental associated type inference via type witness systems">;
def enable_experimental_implicit_some :
Flag<["-"], "enable-experimental-implicit-some">,
HelpText<"Enable experimental implicit some">;
def disable_availability_checking : Flag<["-"], def disable_availability_checking : Flag<["-"],
"disable-availability-checking">, "disable-availability-checking">,
HelpText<"Disable checking for potentially unavailable APIs">; HelpText<"Disable checking for potentially unavailable APIs">;

4
lib/AST/ASTPrinter.cpp
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@@ -3045,6 +3045,10 @@ static bool usesFeatureExistentialAny(Decl *decl) {
return false; return false;
} }
static bool usesFeatureImplicitSome(Decl *decl) {
return false;
}
static bool usesFeatureForwardTrailingClosures(Decl *decl) { static bool usesFeatureForwardTrailingClosures(Decl *decl) {
return false; return false;
} }

5
lib/Frontend/CompilerInvocation.cpp
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@@ -684,9 +684,12 @@ static bool ParseLangArgs(LangOptions &Opts, ArgList &Args,
Opts.Features.insert(Feature::ForwardModeDifferentiation); Opts.Features.insert(Feature::ForwardModeDifferentiation);
if (Args.hasArg(OPT_enable_experimental_additive_arithmetic_derivation)) if (Args.hasArg(OPT_enable_experimental_additive_arithmetic_derivation))
Opts.Features.insert(Feature::AdditiveArithmeticDerivedConformances); Opts.Features.insert(Feature::AdditiveArithmeticDerivedConformances);
if (Args.hasArg(OPT_enable_experimental_opaque_type_erasure)) if (Args.hasArg(OPT_enable_experimental_opaque_type_erasure))
Opts.Features.insert(Feature::OpaqueTypeErasure); Opts.Features.insert(Feature::OpaqueTypeErasure);
if (Args.hasArg(OPT_enable_experimental_variadic_generics)){
Opts.Features.insert(Feature::ImplicitSome);
Opts.Features.insert(Feature::ExistentialAny);
}
Opts.EnableAppExtensionRestrictions |= Args.hasArg(OPT_enable_app_extension); Opts.EnableAppExtensionRestrictions |= Args.hasArg(OPT_enable_app_extension);