mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-02 22:02:51 +01:00
Dana Jansens
fe020ee08b
The SymbolicBindingType refers to the type value that will be substituted in for the BindSymbolicName, but holds onto the EntityNameId from the BindSymbolicName instead of (or in addition to, for now) the instruction. The EntityNameId will be used to look in the ScopeStack to find the witnesses either from the BindSymbolicName instruction, or other instructions that specify `impls` constraints against the EntityName. This will allow us to have the `T` in `I(T)` resolve to a `.Self` reference in the type so that we get type equality with the binding's type: `T:! I(.Self)`.
71 lines
4.0 KiB
Plaintext
71 lines
4.0 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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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/where_expr/non_generic.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/where_expr/non_generic.carbon
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interface I { let T:! type; }
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// Ensure that we don't crash when checking this `where` in a non-generic context.
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//@dump-sem-ir-begin
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fn NotGenericF(U: I where .T == i32) {}
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//@dump-sem-ir-end
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// CHECK:STDOUT: --- non_generic.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %I.type: type = facet_type <@I> [concrete]
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// CHECK:STDOUT: %I.assoc_type: type = assoc_entity_type @I [concrete]
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// CHECK:STDOUT: %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete]
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// CHECK:STDOUT: %.Self: %I.type = bind_symbolic_name .Self [symbolic_self]
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// CHECK:STDOUT: %.Self.binding.as_type: type = symbolic_binding_type .Self, %.Self [symbolic_self]
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// CHECK:STDOUT: %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self, @I [symbolic_self]
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// CHECK:STDOUT: %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
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// CHECK:STDOUT: %I_where.type: type = facet_type <@I where TODO> [concrete]
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// CHECK:STDOUT: %pattern_type.917: type = pattern_type %I_where.type [concrete]
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// CHECK:STDOUT: %NotGenericF.type: type = fn_type @NotGenericF [concrete]
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// CHECK:STDOUT: %NotGenericF: %NotGenericF.type = struct_value () [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: imports {
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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: %NotGenericF.decl: %NotGenericF.type = fn_decl @NotGenericF [concrete = constants.%NotGenericF] {
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// CHECK:STDOUT: %U.patt: %pattern_type.917 = binding_pattern U [concrete]
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// CHECK:STDOUT: %U.param_patt: %pattern_type.917 = value_param_pattern %U.patt, call_param0 [concrete]
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// CHECK:STDOUT: } {
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// CHECK:STDOUT: %U.param: %I_where.type = value_param call_param0
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// CHECK:STDOUT: %.loc17_21.1: type = splice_block %.loc17_21.2 [concrete = constants.%I_where.type] {
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// CHECK:STDOUT: %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
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// CHECK:STDOUT: %T.ref: %I.assoc_type = name_ref T, @T.%assoc0 [concrete = constants.%assoc0]
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// CHECK:STDOUT: %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.binding.as_type]
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// CHECK:STDOUT: %.loc17_27: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.binding.as_type]
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// CHECK:STDOUT: %impl.elem0: type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: %.loc17_21.2: type = where_expr %.Self [concrete = constants.%I_where.type] {
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// CHECK:STDOUT: requirement_base_facet_type constants.%I.type
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// CHECK:STDOUT: requirement_equivalent %impl.elem0, %i32
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %U: %I_where.type = bind_name U, %U.param
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @NotGenericF(%U.param: %I_where.type) {
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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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