mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-27 22:02:33 +01:00
Geoff RomerandRichard Smith
a112cbde5c
This is a precondition for enabling the new pattern-matching subsystem to support binding patterns that have `if` expressions in the type position. --------- Co-authored-by: Richard Smith <richard@metafoo.co.uk>
78 lines
4.1 KiB
Plaintext
78 lines
4.1 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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// 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/array/generic_empty.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/array/generic_empty.carbon
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fn G(T:! type) {
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// We can initialize this without knowing T.
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var arr: [T; 0] = ();
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}
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// CHECK:STDOUT: --- generic_empty.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %T: type = bind_symbolic_name T, 0 [symbolic]
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// CHECK:STDOUT: %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
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// CHECK:STDOUT: %G.type: type = fn_type @G [template]
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// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [template]
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// CHECK:STDOUT: %G: %G.type = struct_value () [template]
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// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [template]
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// CHECK:STDOUT: %array_type: type = array_type %int_0, %T [symbolic]
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// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %array_type [symbolic]
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// CHECK:STDOUT: %array: %array_type = tuple_value () [symbolic]
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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: %Core: <namespace> = namespace file.%Core.import, [template] {
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// CHECK:STDOUT: import Core//prelude
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// CHECK:STDOUT: import Core//prelude/...
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// CHECK:STDOUT: }
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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: .Core = imports.%Core
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// CHECK:STDOUT: .G = %G.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [template = constants.%G] {
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// CHECK:STDOUT: %T.patt.loc11_6.1: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc11_6.2 (constants.%T.patt)]
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// CHECK:STDOUT: %T.param_patt: type = value_param_pattern %T.patt.loc11_6.1, runtime_param<invalid> [symbolic = %T.patt.loc11_6.2 (constants.%T.patt)]
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// CHECK:STDOUT: } {
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// CHECK:STDOUT: %T.param: type = value_param runtime_param<invalid>
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// CHECK:STDOUT: %T.loc11_6.1: type = bind_symbolic_name T, 0, %T.param [symbolic = %T.loc11_6.2 (constants.%T)]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: generic fn @G(%T.loc11_6.1: type) {
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// CHECK:STDOUT: %T.loc11_6.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc11_6.2 (constants.%T)]
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// CHECK:STDOUT: %T.patt.loc11_6.2: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc11_6.2 (constants.%T.patt)]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !definition:
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// CHECK:STDOUT: %array_type: type = array_type constants.%int_0, @G.%T.loc11_6.2 (%T) [symbolic = %array_type (constants.%array_type)]
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// CHECK:STDOUT: %require_complete: <witness> = require_complete_type @G.%array_type (%array_type) [symbolic = %require_complete (constants.%require_complete)]
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// CHECK:STDOUT: %array: @G.%array_type (%array_type) = tuple_value () [symbolic = %array (constants.%array)]
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn(%T.param_patt: type) {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %arr.var: ref @G.%array_type (%array_type) = var arr
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// CHECK:STDOUT: %arr: ref @G.%array_type (%array_type) = bind_name arr, %arr.var
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// CHECK:STDOUT: %.loc13_22.1: %empty_tuple.type = tuple_literal ()
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// CHECK:STDOUT: %.loc13_22.2: init @G.%array_type (%array_type) = array_init () to %arr.var [symbolic = %array (constants.%array)]
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// CHECK:STDOUT: %.loc13_23: init @G.%array_type (%array_type) = converted %.loc13_22.1, %.loc13_22.2 [symbolic = %array (constants.%array)]
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// CHECK:STDOUT: assign %arr.var, %.loc13_23
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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:
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// CHECK:STDOUT: specific @G(constants.%T) {
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// CHECK:STDOUT: %T.loc11_6.2 => constants.%T
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// CHECK:STDOUT: %T.patt.loc11_6.2 => constants.%T
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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