carbon-lang/toolchain/check/testdata/interface/incomplete.carbon

// 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
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/none.carbon
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interface/incomplete.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/incomplete.carbon

// --- fail_incomplete_type.carbon
library "[[@TEST_NAME]]";

class C;

interface I {
  // CHECK:STDERR: fail_incomplete_type.carbon:[[@LINE+7]]:11: error: associated constant has incomplete type `C` [IncompleteTypeInAssociatedConstantDecl]
  // CHECK:STDERR:   let T:! C;
  // CHECK:STDERR:           ^
  // CHECK:STDERR: fail_incomplete_type.carbon:[[@LINE-6]]:1: note: class was forward declared here [ClassForwardDeclaredHere]
  // CHECK:STDERR: class C;
  // CHECK:STDERR: ^~~~~~~~
  // CHECK:STDERR:
  let T:! C;
}

// --- fail_incomplete_extend_constraint.carbon
library "[[@TEST_NAME]]";

constraint A;

interface B {
  // CHECK:STDERR: fail_incomplete_extend_constraint.carbon:[[@LINE+7]]:24: error: facet type `A` cannot be identified in `require` declaration [RequireImplsUnidentifiedFacetType]
  // CHECK:STDERR:   extend require impls A;
  // CHECK:STDERR:                        ^
  // CHECK:STDERR: fail_incomplete_extend_constraint.carbon:[[@LINE-6]]:1: note: constraint was forward declared here [NamedConstraintForwardDeclaredHere]
  // CHECK:STDERR: constraint A;
  // CHECK:STDERR: ^~~~~~~~~~~~~
  // CHECK:STDERR:
  extend require impls A;
}

// --- fail_extend_require_enclosing.carbon
library "[[@TEST_NAME]]";

interface A {
  // CHECK:STDERR: fail_extend_require_enclosing.carbon:[[@LINE+7]]:24: error: `extend require` of incomplete facet type `A` [RequireImplsIncompleteFacetType]
  // CHECK:STDERR:   extend require impls A;
  // CHECK:STDERR:                        ^
  // CHECK:STDERR: fail_extend_require_enclosing.carbon:[[@LINE-4]]:1: note: interface is currently being defined [InterfaceIncompleteWithinDefinition]
  // CHECK:STDERR: interface A {
  // CHECK:STDERR: ^~~~~~~~~~~~~
  // CHECK:STDERR:
  extend require impls A;
}

// --- fail_extend_require_enclosing_generic.carbon
library "[[@TEST_NAME]]";

interface A(T:! type) {
  // CHECK:STDERR: fail_extend_require_enclosing_generic.carbon:[[@LINE+7]]:24: error: `extend require` of incomplete facet type `A({})` [RequireImplsIncompleteFacetType]
  // CHECK:STDERR:   extend require impls A({});
  // CHECK:STDERR:                        ^~~~~
  // CHECK:STDERR: fail_extend_require_enclosing_generic.carbon:[[@LINE-4]]:1: note: interface is currently being defined [InterfaceIncompleteWithinDefinition]
  // CHECK:STDERR: interface A(T:! type) {
  // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  extend require impls A({});
}

// CHECK:STDOUT: --- fail_incomplete_type.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %C: type = class_type @C [concrete]
// CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
// CHECK:STDOUT:   %Self: %I.type = symbolic_binding Self, 0 [symbolic]
// CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
// CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .C = %C.decl
// CHECK:STDOUT:     .I = %I.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @I {
// CHECK:STDOUT:   %Self: %I.type = symbolic_binding Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT:   %T: <error> = assoc_const_decl @T [concrete] {
// CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete = constants.%assoc0]
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = %Self
// CHECK:STDOUT:   .C = <poisoned>
// CHECK:STDOUT:   .T = @T.%assoc0
// CHECK:STDOUT:   witness = (%T)
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic assoc_const @T(@I.%Self: %I.type) {
// CHECK:STDOUT:   assoc_const T:! <error>;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C;
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T(constants.%Self) {}
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_incomplete_extend_constraint.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %A.type: type = facet_type <@A> [concrete]
// CHECK:STDOUT:   %B.type: type = facet_type <@B> [concrete]
// CHECK:STDOUT:   %Self: %B.type = symbolic_binding Self, 0 [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .A = %A.decl
// CHECK:STDOUT:     .B = %B.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %A.decl: type = constraint_decl @A [concrete = constants.%A.type] {} {}
// CHECK:STDOUT:   %B.decl: type = interface_decl @B [concrete = constants.%B.type] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @B {
// CHECK:STDOUT:   %Self: %B.type = symbolic_binding Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = %Self
// CHECK:STDOUT:   .A = <poisoned>
// CHECK:STDOUT:   has_error
// CHECK:STDOUT:   witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: constraint @A;
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extend_require_enclosing.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %A.type: type = facet_type <@A> [concrete]
// CHECK:STDOUT:   %Self: %A.type = symbolic_binding Self, 0 [symbolic]
// CHECK:STDOUT:   %Self.binding.as_type: type = symbolic_binding_type Self, 0, %Self [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .A = %A.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %A.decl: type = interface_decl @A [concrete = constants.%A.type] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @A {
// CHECK:STDOUT:   %Self: %A.type = symbolic_binding Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT:   %A.Self.binding.as_type.impls.A.type.require.decl = require_decl @A.Self.binding.as_type.impls.A.type.require [concrete] {
// CHECK:STDOUT:     require %Self.as_type impls %A.ref
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %Self.as_type: type = facet_access_type @A.%Self [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type)]
// CHECK:STDOUT:     %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = %Self
// CHECK:STDOUT:   .A = <poisoned>
// CHECK:STDOUT:   witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic require @A.Self.binding.as_type.impls.A.type.require(@A.%Self: %A.type) {
// CHECK:STDOUT:   %Self: %A.type = symbolic_binding Self, 0 [symbolic = %Self (constants.%Self)]
// CHECK:STDOUT:   %Self.binding.as_type: type = symbolic_binding_type Self, 0, %Self [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type)]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @A.Self.binding.as_type.impls.A.type.require(constants.%Self) {
// CHECK:STDOUT:   %Self => constants.%Self
// CHECK:STDOUT:   %Self.binding.as_type => constants.%Self.binding.as_type
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extend_require_enclosing_generic.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %type: type = facet_type <type> [concrete]
// CHECK:STDOUT:   %.Self: %type = symbolic_binding .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type: type = pattern_type type [concrete]
// CHECK:STDOUT:   %A.type.464: type = generic_interface_type @A [concrete]
// CHECK:STDOUT:   %A.generic: %A.type.464 = struct_value () [concrete]
// CHECK:STDOUT:   %A.type.ade: type = facet_type <@A, @A(%T)> [symbolic]
// CHECK:STDOUT:   %Self: %A.type.ade = symbolic_binding Self, 1 [symbolic]
// CHECK:STDOUT:   %Self.binding.as_type: type = symbolic_binding_type Self, 1, %Self [symbolic]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
// CHECK:STDOUT:   %A.type.69e: type = facet_type <@A, @A(%empty_struct_type)> [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .A = %A.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %A.decl: %A.type.464 = interface_decl @A [concrete = constants.%A.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: %type = symbolic_binding .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc3_13.2: type = symbolic_binding T, 0 [symbolic = %T.loc3_13.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @A(%T.loc3_13.2: type) {
// CHECK:STDOUT:   %T.loc3_13.1: type = symbolic_binding T, 0 [symbolic = %T.loc3_13.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%T.loc3_13.1)> [symbolic = %A.type (constants.%A.type.ade)]
// CHECK:STDOUT:   %Self.loc3_23.2: @A.%A.type (%A.type.ade) = symbolic_binding Self, 1 [symbolic = %Self.loc3_23.2 (constants.%Self)]
// CHECK:STDOUT:
// CHECK:STDOUT:   interface {
// CHECK:STDOUT:     %Self.loc3_23.1: @A.%A.type (%A.type.ade) = symbolic_binding Self, 1 [symbolic = %Self.loc3_23.2 (constants.%Self)]
// CHECK:STDOUT:     %A.Self.binding.as_type.impls.A.type.require.decl = require_decl @A.Self.binding.as_type.impls.A.type.require [concrete] {
// CHECK:STDOUT:       require %Self.as_type impls %A.type.loc11_28
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %Self.as_type: type = facet_access_type @A.%Self.loc3_23.1 [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type)]
// CHECK:STDOUT:       %A.ref: %A.type.464 = name_ref A, file.%A.decl [concrete = constants.%A.generic]
// CHECK:STDOUT:       %.loc11_27: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
// CHECK:STDOUT:       %.loc11_28: type = converted %.loc11_27, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
// CHECK:STDOUT:       %A.type.loc11_28: type = facet_type <@A, @A(constants.%empty_struct_type)> [concrete = constants.%A.type.69e]
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = %Self.loc3_23.1
// CHECK:STDOUT:     .A = <poisoned>
// CHECK:STDOUT:     witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT:   !requires:
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic require @A.Self.binding.as_type.impls.A.type.require(@A.%T.loc3_13.2: type, @A.%Self.loc3_23.1: @A.%A.type (%A.type.ade)) {
// CHECK:STDOUT:   %T: type = symbolic_binding T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %A.type.loc11_18: type = facet_type <@A, @A(%T)> [symbolic = %A.type.loc11_18 (constants.%A.type.ade)]
// CHECK:STDOUT:   %Self: @A.Self.binding.as_type.impls.A.type.require.%A.type.loc11_18 (%A.type.ade) = symbolic_binding Self, 1 [symbolic = %Self (constants.%Self)]
// CHECK:STDOUT:   %Self.binding.as_type: type = symbolic_binding_type Self, 1, %Self [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type)]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @A(constants.%T) {
// CHECK:STDOUT:   %T.loc3_13.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @A(constants.%empty_struct_type) {
// CHECK:STDOUT:   %T.loc3_13.1 => constants.%empty_struct_type
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @A.Self.binding.as_type.impls.A.type.require(constants.%T, constants.%Self) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %A.type.loc11_18 => constants.%A.type.ade
// CHECK:STDOUT:   %Self => constants.%Self
// CHECK:STDOUT:   %Self.binding.as_type => constants.%Self.binding.as_type
// CHECK:STDOUT: }
// CHECK:STDOUT: