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carbon-lang/toolchain/check/testdata/class/fail_generic_method.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/fail_generic_method.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/fail_generic_method.carbon
class Class(T:! type) {
var a: T;
fn F[self: Self](n: T);
}
// TODO: The follow-on errors here aren't great. Investigate whether we can
// enter the scope anyway if the parameters don't match.
// CHECK:STDERR: fail_generic_method.carbon:[[@LINE+14]]:10: ERROR: Redeclaration differs at parameter 1.
// CHECK:STDERR: fn Class(N:! i32).F[self: Self](n: T) {}
// CHECK:STDERR: ^
// CHECK:STDERR: fail_generic_method.carbon:[[@LINE-10]]:13: Previous declaration's corresponding parameter here.
// CHECK:STDERR: class Class(T:! type) {
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_generic_method.carbon:[[@LINE+7]]:27: ERROR: Name `Self` not found.
// CHECK:STDERR: fn Class(N:! i32).F[self: Self](n: T) {}
// CHECK:STDERR: ^~~~
// CHECK:STDERR:
// CHECK:STDERR: fail_generic_method.carbon:[[@LINE+3]]:36: ERROR: Name `T` not found.
// CHECK:STDERR: fn Class(N:! i32).F[self: Self](n: T) {}
// CHECK:STDERR: ^
fn Class(N:! i32).F[self: Self](n: T) {}
// CHECK:STDOUT: --- fail_generic_method.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %T: type = bind_symbolic_name T 0 [symbolic]
// CHECK:STDOUT: %Class.type: type = generic_class_type @Class [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %Class.1: %Class.type = struct_value () [template]
// CHECK:STDOUT: %Class.2: type = class_type @Class, @Class(%T) [symbolic]
// CHECK:STDOUT: %.2: type = unbound_element_type %Class.2, %T [symbolic]
// CHECK:STDOUT: %F.type: type = fn_type @F [template]
// CHECK:STDOUT: %F: %F.type = struct_value () [template]
// CHECK:STDOUT: %.3: type = struct_type {.a: %T} [symbolic]
// CHECK:STDOUT: %Int32.type: type = fn_type @Int32 [template]
// CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
// CHECK:STDOUT: %N: i32 = bind_symbolic_name N 0 [symbolic]
// CHECK:STDOUT: %.type: type = fn_type @.1 [template]
// CHECK:STDOUT: %.4: %.type = struct_value () [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int32 = %import_ref
// 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: %import_ref: %Int32.type = import_ref Core//prelude/types, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Class = %Class.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Class.decl: %Class.type = class_decl @Class [template = constants.%Class.1] {
// CHECK:STDOUT: %T.loc11_13.1: type = param T
// CHECK:STDOUT: %T.loc11_13.2: type = bind_symbolic_name T 0, %T.loc11_13.1 [symbolic = @Class.%T (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.decl: %.type = fn_decl @.1 [template = constants.%.4] {
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc32_14.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc32_14.2: type = converted %int.make_type_32, %.loc32_14.1 [template = i32]
// CHECK:STDOUT: %N.loc32_10.1: i32 = param N
// CHECK:STDOUT: %N.loc32_10.2: i32 = bind_symbolic_name N 0, %N.loc32_10.1 [symbolic = @.1.%N (constants.%N)]
// CHECK:STDOUT: %Self.ref: <error> = name_ref Self, <error> [template = <error>]
// CHECK:STDOUT: %self.loc32_21.1: <error> = param self
// CHECK:STDOUT: @.1.%self: <error> = bind_name self, %self.loc32_21.1
// CHECK:STDOUT: %T.ref: <error> = name_ref T, <error> [template = <error>]
// CHECK:STDOUT: %n.loc32_33.1: <error> = param n
// CHECK:STDOUT: @.1.%n: <error> = bind_name n, %n.loc32_33.1
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Class(file.%T.loc11_13.2: type) {
// CHECK:STDOUT: %T: type = bind_symbolic_name T 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Class: type = class_type @Class, @Class(%T) [symbolic = %Class (constants.%Class.2)]
// CHECK:STDOUT: %.1: type = unbound_element_type @Class.%Class (%Class.2), @Class.%T (%T) [symbolic = %.1 (constants.%.2)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: %T.ref.loc12: type = name_ref T, file.%T.loc11_13.2 [symbolic = %T (constants.%T)]
// CHECK:STDOUT: %.loc12: @Class.%.1 (%.2) = field_decl a, element0 [template]
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [template = constants.%F] {
// CHECK:STDOUT: %.loc13: type = specific_constant constants.%Class.2, @Class(constants.%T) [symbolic = @F.%Class (constants.%Class.2)]
// CHECK:STDOUT: %Self.ref: type = name_ref Self, %.loc13 [symbolic = @F.%Class (constants.%Class.2)]
// CHECK:STDOUT: %self.loc13_8.1: @F.%Class (%Class.2) = param self
// CHECK:STDOUT: %self.loc13_8.2: @F.%Class (%Class.2) = bind_name self, %self.loc13_8.1
// CHECK:STDOUT: %T.ref.loc13: type = name_ref T, file.%T.loc11_13.2 [symbolic = @F.%T (constants.%T)]
// CHECK:STDOUT: %n.loc13_20.1: @F.%T (%T) = param n
// CHECK:STDOUT: %n.loc13_20.2: @F.%T (%T) = bind_name n, %n.loc13_20.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Class.2
// CHECK:STDOUT: .a = %.loc12
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @F(file.%T.loc11_13.2: type) {
// CHECK:STDOUT: %T: type = bind_symbolic_name T 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT: %Class: type = class_type @Class, @Class(%T) [symbolic = %Class (constants.%Class.2)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn[@Class.%self.loc13_8.2: @F.%Class (%Class.2)](@Class.%n.loc13_20.2: @F.%T (%T));
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @.1(file.%N.loc32_10.2: i32) {
// CHECK:STDOUT: %N: i32 = bind_symbolic_name N 0 [symbolic = %N (constants.%N)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT: fn[%self: <error>](%n: <error>) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Class(constants.%T) {
// CHECK:STDOUT: %T => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Class(@F.%T) {
// CHECK:STDOUT: %T => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @F(constants.%T) {
// CHECK:STDOUT: %T => constants.%T
// CHECK:STDOUT: %Class => constants.%Class.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Class(@Class.%T) {
// CHECK:STDOUT: %T => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @.1(constants.%N) {
// CHECK:STDOUT: %N => constants.%N
// CHECK:STDOUT: }
// CHECK:STDOUT:
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