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carbon-lang/toolchain/check/testdata/class/fail_generic_method.carbon
T
Richard SmithandJon Ross-Perkins efea072be3 Compute specific constant values. (#4128) 
When forming a specific (previously called a generic instance), evaluate
the eval block of the generic to determine the values of any constants
used in that specific. The majority of the work here is updating
eval.cpp so that it can use the results of prior evaluations in the same
block when computing later values.

Include the computed results in the formatted SemIR output.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
2024-07-15 23:59:23 +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, file.%Class.decl(%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: %import_ref: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = %Core
// CHECK:STDOUT: .Class = %Class.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Core: <namespace> = namespace %Core.import, [template] {}
// 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 = %T.loc11_13.2 (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 = %N.loc32_10.2 (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: class @Class
// CHECK:STDOUT: generic [file.%T.loc11_13.2: type] {
// CHECK:STDOUT: %T.ref.loc12: type = name_ref T, file.%T.loc11_13.2 [symbolic = constants.%T]
// CHECK:STDOUT: %.loc12: %.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, file.%Class.decl(constants.%T) [symbolic = %.loc13 (constants.%Class.2)]
// CHECK:STDOUT: %Self.ref: type = name_ref Self, %.loc13 [symbolic = %.loc13 (constants.%Class.2)]
// CHECK:STDOUT: %self.loc13_8.1: @Class.%.loc13 (%Class.2) = param self
// CHECK:STDOUT: %self.loc13_8.2: @Class.%.loc13 (%Class.2) = bind_name self, %self.loc13_8.1
// CHECK:STDOUT: %T.ref.loc13: type = name_ref T, file.%T.loc11_13.2 [symbolic = %T.ref.loc13 (constants.%T)]
// CHECK:STDOUT: %n.loc13_20.1: @Class.%T.ref.loc13 (%T) = param n
// CHECK:STDOUT: %n.loc13_20.2: @Class.%T.ref.loc13 (%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: fn @F[@Class.%self.loc13_8.2: @Class.%.loc13 (%Class.2)](@Class.%n.loc13_20.2: @Class.%T.ref.loc13 (%T))
// CHECK:STDOUT: generic [file.%T.loc11_13.2: type];
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @.1[%self: <error>](%n: <error>)
// CHECK:STDOUT: generic [file.%N.loc32_10.2: i32] {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific file.%Class.decl(constants.%T) {
// CHECK:STDOUT: declaration:
// CHECK:STDOUT: file.%T.loc11_13.2 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Class.%F.decl(constants.%T) {
// CHECK:STDOUT: declaration:
// CHECK:STDOUT: @Class.%.loc13 => constants.%Class.2
// CHECK:STDOUT: @Class.%T.ref.loc13 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific file.%.decl(constants.%N) {
// CHECK:STDOUT: declaration:
// CHECK:STDOUT: file.%N.loc32_10.2 => constants.%N
// CHECK:STDOUT: }
// CHECK:STDOUT:
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