mirror of
https://github.com/carbon-language/carbon-lang.git
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Richard SmithandJon Ross-Perkins
a1317e61e0
Check that functions in an `impl` are declared properly. For now, simply reuse the redeclaration checking logic. Longer-term, we need to check that the signatures match in a more approximate way, after substituting the `Self` type into the signature in the `interface`. --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
104 lines
3.9 KiB
Plaintext
104 lines
3.9 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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interface HasF {
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fn F();
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}
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class C {
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extend impl as HasF {
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fn F() {}
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}
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}
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fn G(c: C) {
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// TODO: These should do impl lookup. Because that's not implemented yet, they
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// refer to the interface members rather than to the impl members.
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// CHECK:STDERR: fail_todo_extend_impl.carbon:[[@LINE+3]]:3: ERROR: Value of type `<associated <function> in HasF>` is not callable.
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// CHECK:STDERR: C.F();
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// CHECK:STDERR: ^~~~
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C.F();
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// CHECK:STDERR: fail_todo_extend_impl.carbon:[[@LINE+3]]:3: ERROR: Value of type `<associated <function> in HasF>` is not callable.
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// CHECK:STDERR: c.F();
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// CHECK:STDERR: ^~~~
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c.F();
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}
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// CHECK:STDOUT: --- fail_todo_extend_impl.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %.1: type = interface_type @HasF [template]
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// CHECK:STDOUT: %.2: type = assoc_entity_type @HasF, <function> [template]
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// CHECK:STDOUT: %.3: <associated <function> in HasF> = assoc_entity element0, @HasF.%F [template]
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// CHECK:STDOUT: %C: type = class_type @C [template]
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// CHECK:STDOUT: %.4: <witness> = interface_witness @HasF, (@impl.%F) [template]
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// CHECK:STDOUT: %.5: type = struct_type {} [template]
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// CHECK:STDOUT: %.6: type = tuple_type () [template]
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// CHECK:STDOUT: %.7: type = ptr_type {} [template]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace [template] {
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// CHECK:STDOUT: .HasF = %HasF.decl
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// CHECK:STDOUT: .C = %C.decl
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// CHECK:STDOUT: .G = %G
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %HasF.decl: type = interface_decl @HasF [template = constants.%.1] {}
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// CHECK:STDOUT: %C.decl: type = class_decl @C [template = constants.%C] {}
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// CHECK:STDOUT: %G: <function> = fn_decl @G [template] {
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// CHECK:STDOUT: %C.ref: type = name_ref C, %C.decl [template = constants.%C]
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// CHECK:STDOUT: %c.loc17_6.1: C = param c
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// CHECK:STDOUT: @G.%c: C = bind_name c, %c.loc17_6.1
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @HasF {
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// CHECK:STDOUT: %Self: HasF = bind_symbolic_name Self [symbolic]
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// CHECK:STDOUT: %F: <function> = fn_decl @F.1 [template] {}
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// CHECK:STDOUT: %.loc8: <associated <function> in HasF> = assoc_entity element0, %F [template = constants.%.3]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = %Self
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// CHECK:STDOUT: .F = %.loc8
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// CHECK:STDOUT: witness = (%F)
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: impl @impl: C as HasF {
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// CHECK:STDOUT: %F: <function> = fn_decl @F.2 [template] {}
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// CHECK:STDOUT: %.1: <witness> = interface_witness @HasF, (%F) [template = constants.%.4]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .F = %F
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// CHECK:STDOUT: witness = %.1
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: class @C {
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// CHECK:STDOUT: impl_decl @impl {
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// CHECK:STDOUT: %HasF.ref: type = name_ref HasF, file.%HasF.decl [template = constants.%.1]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = constants.%C
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// CHECK:STDOUT: extend name_scope1
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F.1();
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F.2() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @G(%c: C) {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [template = constants.%C]
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// CHECK:STDOUT: %F.ref.loc23: <associated <function> in HasF> = name_ref F, @HasF.%.loc8 [template = constants.%.3]
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// CHECK:STDOUT: %c.ref: C = name_ref c, %c
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// CHECK:STDOUT: %F.ref.loc27: <associated <function> in HasF> = name_ref F, @HasF.%.loc8 [template = constants.%.3]
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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