Fix indirect import handling for functions. (#4258)

The particular test this focused on is indirect_two_file in
toolchain/check/testdata/function/definition/no_prelude/extern_library.carbon.

This removes `parent_scope_id_for_new_inst` because I think it's
returning unhelpful results. The use was at the root of incorrect
results for the indirect import chain. `name_id_for_new_inst` is
actually wrapping a union, so it's more important.

The merging of `is_extern` and `first_owning_decl_id` in
`handle_function.cpp` feels like it's less correct with the changes
that've been made to `extern`. This ripples in tests, because the error
recovery shifts.

---------

Co-authored-by: Richard Smith <richard@metafoo.co.uk>
This commit is contained in:
Jon Ross-Perkins
2024-08-27 20:26:23 +00:00
committed by GitHub
co-authored by Richard Smith
parent 2a7c2c5df2
commit bed5fdcbbe
16 changed files with 139 additions and 79 deletions
@@ -724,17 +724,17 @@ import library "extern_api";
// CHECK:STDOUT: %e: ref %.1 = bind_name e, %e.var
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @A();
// CHECK:STDOUT: fn @A();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @B(%b: i32) -> i32;
// CHECK:STDOUT: fn @B(%b: i32) -> i32;
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @C(%c: %.3) -> %.4;
// CHECK:STDOUT: fn @C(%c: %.3) -> %.4;
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @D();
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @E();
// CHECK:STDOUT: fn @E();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
@@ -143,13 +143,13 @@ class C {
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .F = %F.decl.loc12
// CHECK:STDOUT: .F = %F.decl.loc4
// CHECK:STDOUT: }
// CHECK:STDOUT: %F.decl.loc4: %F.type = fn_decl @F [template = constants.%F] {}
// CHECK:STDOUT: %F.decl.loc12: %F.type = fn_decl @F [template = constants.%F] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F();
// CHECK:STDOUT: extern fn @F();
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_member_extern.carbon
// CHECK:STDOUT:
@@ -234,7 +234,7 @@ extern library "extern_of_import" fn F();
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [template = constants.%F] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F();
// CHECK:STDOUT: extern fn @F();
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extern_library_redecl.carbon
// CHECK:STDOUT:
@@ -377,5 +377,5 @@ extern library "extern_of_import" fn F();
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [template = constants.%F] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @F();
// CHECK:STDOUT: fn @F();
// CHECK:STDOUT:
@@ -148,7 +148,7 @@ extern fn A();
// CHECK:STDOUT: %A.decl: %A.type = fn_decl @A [template = constants.%A] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @A();
// CHECK:STDOUT: extern fn @A();
// CHECK:STDOUT:
// CHECK:STDOUT: --- extern_impl.carbon
// CHECK:STDOUT:
@@ -188,5 +188,5 @@ extern fn A();
// CHECK:STDOUT: %A.decl: %A.type = fn_decl @A [template = constants.%A] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @A();
// CHECK:STDOUT: fn @A();
// CHECK:STDOUT: