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carbon-lang/toolchain/check/testdata/class/base_method_shadow.carbon
T
Jon Ross-PerkinsandRichard Smith 7ded56ef35 Improve namespace handling in imports. (#4153) 
This implements a few closely related features:

- Starts merging namespaces discovered inside imports.
- Stores results of cross-package name lookup as an entry inside the
scope.
  - Note this is particularly visible with `i32`.
- Moves more of the imported instructions to the import scope.

Note this is primarily for executing the namespace TODO in check.cpp,
which is removed here.
`testdata/namespace/merging_with_indirections.carbon` tests key
behavior.

---------

Co-authored-by: Richard Smith <richard@metafoo.co.uk>
2024-07-24 19:56:17 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/base_method_shadow.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/base_method_shadow.carbon
base class A {
fn F[addr self: Self*]();
}
base class B {
extend base: A;
fn F[addr self: Self*]();
}
class C {
extend base: B;
fn F[addr self: Self*]();
}
class D {
extend base: B;
}
fn Call(a: A*, b: B*, c: C*, d: D*) {
(*a).F();
(*b).F();
(*c).F();
(*d).F();
}
// CHECK:STDOUT: --- base_method_shadow.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %A: type = class_type @A [template]
// CHECK:STDOUT: %.1: type = ptr_type %A [template]
// CHECK:STDOUT: %F.type.1: type = fn_type @F.1 [template]
// CHECK:STDOUT: %.2: type = tuple_type () [template]
// CHECK:STDOUT: %F.1: %F.type.1 = struct_value () [template]
// CHECK:STDOUT: %.3: type = struct_type {} [template]
// CHECK:STDOUT: %B: type = class_type @B [template]
// CHECK:STDOUT: %.4: type = ptr_type %.3 [template]
// CHECK:STDOUT: %.5: type = unbound_element_type %B, %A [template]
// CHECK:STDOUT: %.6: type = ptr_type %B [template]
// CHECK:STDOUT: %F.type.2: type = fn_type @F.2 [template]
// CHECK:STDOUT: %F.2: %F.type.2 = struct_value () [template]
// CHECK:STDOUT: %.7: type = struct_type {.base: %A} [template]
// CHECK:STDOUT: %C: type = class_type @C [template]
// CHECK:STDOUT: %.8: type = struct_type {.base: %.4} [template]
// CHECK:STDOUT: %.9: type = ptr_type %.7 [template]
// CHECK:STDOUT: %.10: type = unbound_element_type %C, %B [template]
// CHECK:STDOUT: %.11: type = ptr_type %C [template]
// CHECK:STDOUT: %F.type.3: type = fn_type @F.3 [template]
// CHECK:STDOUT: %F.3: %F.type.3 = struct_value () [template]
// CHECK:STDOUT: %.12: type = struct_type {.base: %B} [template]
// CHECK:STDOUT: %D: type = class_type @D [template]
// CHECK:STDOUT: %.13: type = unbound_element_type %D, %B [template]
// CHECK:STDOUT: %.14: type = ptr_type %D [template]
// CHECK:STDOUT: %Call.type: type = fn_type @Call [template]
// CHECK:STDOUT: %Call: %Call.type = struct_value () [template]
// CHECK:STDOUT: %.15: type = struct_type {.base: %.9} [template]
// CHECK:STDOUT: %.16: type = ptr_type %.12 [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/operators
// CHECK:STDOUT: import Core//prelude/types
// CHECK:STDOUT: import Core//prelude/operators/arithmetic
// CHECK:STDOUT: import Core//prelude/operators/bitwise
// CHECK:STDOUT: import Core//prelude/operators/comparison
// CHECK:STDOUT: import Core//prelude/types/bool
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .A = %A.decl
// CHECK:STDOUT: .B = %B.decl
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: .D = %D.decl
// CHECK:STDOUT: .Call = %Call.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %A.decl: type = class_decl @A [template = constants.%A] {}
// CHECK:STDOUT: %B.decl: type = class_decl @B [template = constants.%B] {}
// CHECK:STDOUT: %C.decl: type = class_decl @C [template = constants.%C] {}
// CHECK:STDOUT: %D.decl: type = class_decl @D [template = constants.%D] {}
// CHECK:STDOUT: %Call.decl: %Call.type = fn_decl @Call [template = constants.%Call] {
// CHECK:STDOUT: %A.ref: type = name_ref A, %A.decl [template = constants.%A]
// CHECK:STDOUT: %.loc29_13: type = ptr_type %A [template = constants.%.1]
// CHECK:STDOUT: %a.loc29_9.1: %.1 = param a
// CHECK:STDOUT: @Call.%a: %.1 = bind_name a, %a.loc29_9.1
// CHECK:STDOUT: %B.ref: type = name_ref B, %B.decl [template = constants.%B]
// CHECK:STDOUT: %.loc29_20: type = ptr_type %B [template = constants.%.6]
// CHECK:STDOUT: %b.loc29_16.1: %.6 = param b
// CHECK:STDOUT: @Call.%b: %.6 = bind_name b, %b.loc29_16.1
// CHECK:STDOUT: %C.ref: type = name_ref C, %C.decl [template = constants.%C]
// CHECK:STDOUT: %.loc29_27: type = ptr_type %C [template = constants.%.11]
// CHECK:STDOUT: %c.loc29_23.1: %.11 = param c
// CHECK:STDOUT: @Call.%c: %.11 = bind_name c, %c.loc29_23.1
// CHECK:STDOUT: %D.ref: type = name_ref D, %D.decl [template = constants.%D]
// CHECK:STDOUT: %.loc29_34: type = ptr_type %D [template = constants.%.14]
// CHECK:STDOUT: %d.loc29_30.1: %.14 = param d
// CHECK:STDOUT: @Call.%d: %.14 = bind_name d, %d.loc29_30.1
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @A {
// CHECK:STDOUT: %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%A [template = constants.%A]
// CHECK:STDOUT: %.loc12_23: type = ptr_type %A [template = constants.%.1]
// CHECK:STDOUT: %self.loc12_13.1: %.1 = param self
// CHECK:STDOUT: %self.loc12_13.3: %.1 = bind_name self, %self.loc12_13.1
// CHECK:STDOUT: %.loc12_8: %.1 = addr_pattern %self.loc12_13.3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%A
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @B {
// CHECK:STDOUT: %A.ref: type = name_ref A, file.%A.decl [template = constants.%A]
// CHECK:STDOUT: %.loc16: %.5 = base_decl %A, element0 [template]
// CHECK:STDOUT: %F.decl: %F.type.2 = fn_decl @F.2 [template = constants.%F.2] {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%B [template = constants.%B]
// CHECK:STDOUT: %.loc17_23: type = ptr_type %B [template = constants.%.6]
// CHECK:STDOUT: %self.loc17_13.1: %.6 = param self
// CHECK:STDOUT: %self.loc17_13.3: %.6 = bind_name self, %self.loc17_13.1
// CHECK:STDOUT: %.loc17_8: %.6 = addr_pattern %self.loc17_13.3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%B
// CHECK:STDOUT: .base = %.loc16
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: extend name_scope2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT: %B.ref: type = name_ref B, file.%B.decl [template = constants.%B]
// CHECK:STDOUT: %.loc21: %.10 = base_decl %B, element0 [template]
// CHECK:STDOUT: %F.decl: %F.type.3 = fn_decl @F.3 [template = constants.%F.3] {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%C [template = constants.%C]
// CHECK:STDOUT: %.loc22_23: type = ptr_type %C [template = constants.%.11]
// CHECK:STDOUT: %self.loc22_13.1: %.11 = param self
// CHECK:STDOUT: %self.loc22_13.3: %.11 = bind_name self, %self.loc22_13.1
// CHECK:STDOUT: %.loc22_8: %.11 = addr_pattern %self.loc22_13.3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%C
// CHECK:STDOUT: .base = %.loc21
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: extend name_scope3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @D {
// CHECK:STDOUT: %B.ref: type = name_ref B, file.%B.decl [template = constants.%B]
// CHECK:STDOUT: %.loc26: %.13 = base_decl %B, element0 [template]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%D
// CHECK:STDOUT: .base = %.loc26
// CHECK:STDOUT: extend name_scope3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.1[addr @A.%self.loc12_13.3: %.1]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.2[addr @B.%self.loc17_13.3: %.6]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.3[addr @C.%self.loc22_13.3: %.11]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Call(%a: %.1, %b: %.6, %c: %.11, %d: %.14) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %a.ref: %.1 = name_ref a, %a
// CHECK:STDOUT: %.loc30_4.1: ref %A = deref %a.ref
// CHECK:STDOUT: %F.ref.loc30: %F.type.1 = name_ref F, @A.%F.decl [template = constants.%F.1]
// CHECK:STDOUT: %.loc30_7: <bound method> = bound_method %.loc30_4.1, %F.ref.loc30
// CHECK:STDOUT: %.loc30_4.2: %.1 = addr_of %.loc30_4.1
// CHECK:STDOUT: %F.call.loc30: init %.2 = call %.loc30_7(%.loc30_4.2)
// CHECK:STDOUT: %b.ref: %.6 = name_ref b, %b
// CHECK:STDOUT: %.loc31_4.1: ref %B = deref %b.ref
// CHECK:STDOUT: %F.ref.loc31: %F.type.2 = name_ref F, @B.%F.decl [template = constants.%F.2]
// CHECK:STDOUT: %.loc31_7: <bound method> = bound_method %.loc31_4.1, %F.ref.loc31
// CHECK:STDOUT: %.loc31_4.2: %.6 = addr_of %.loc31_4.1
// CHECK:STDOUT: %F.call.loc31: init %.2 = call %.loc31_7(%.loc31_4.2)
// CHECK:STDOUT: %c.ref: %.11 = name_ref c, %c
// CHECK:STDOUT: %.loc32_4.1: ref %C = deref %c.ref
// CHECK:STDOUT: %F.ref.loc32: %F.type.3 = name_ref F, @C.%F.decl [template = constants.%F.3]
// CHECK:STDOUT: %.loc32_7: <bound method> = bound_method %.loc32_4.1, %F.ref.loc32
// CHECK:STDOUT: %.loc32_4.2: %.11 = addr_of %.loc32_4.1
// CHECK:STDOUT: %F.call.loc32: init %.2 = call %.loc32_7(%.loc32_4.2)
// CHECK:STDOUT: %d.ref: %.14 = name_ref d, %d
// CHECK:STDOUT: %.loc33_4.1: ref %D = deref %d.ref
// CHECK:STDOUT: %F.ref.loc33: %F.type.2 = name_ref F, @B.%F.decl [template = constants.%F.2]
// CHECK:STDOUT: %.loc33_7: <bound method> = bound_method %.loc33_4.1, %F.ref.loc33
// CHECK:STDOUT: %.loc33_4.2: %.14 = addr_of %.loc33_4.1
// CHECK:STDOUT: %.loc33_9.1: ref %D = deref %.loc33_4.2
// CHECK:STDOUT: %.loc33_9.2: ref %B = class_element_access %.loc33_9.1, element0
// CHECK:STDOUT: %.loc33_9.3: %.6 = addr_of %.loc33_9.2
// CHECK:STDOUT: %.loc33_9.4: %.6 = converted %.loc33_4.2, %.loc33_9.3
// CHECK:STDOUT: %F.call.loc33: init %.2 = call %.loc33_7(%.loc33_9.4)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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