mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-11-15 15:58:10 +00:00
Geoff RomerandRichard Smith
e023f75254
The bulk of this change is changing most pattern insts to be `Always` rather than `AlwaysUnique` constants, so that they can be wrapped in `SpecificConstant`s to perform substitution. That then lets thunking rely much more on `SpecificConstant` wrappers instead of deep-copying the inst tree with modified types. This approach to thunking should scale better, particularly as things like form generics make function signatures more complex, because we can leverage the existing support for constant evaluation and substitution. Unfortunately, applying this approach to binding patterns will require more work; see the TODO near the top of `thunk.cpp` for details. --------- Co-authored-by: Richard Smith <richard@metafoo.co.uk>
77 lines
3.8 KiB
Plaintext
77 lines
3.8 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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// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
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// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
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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/pointer/fail_deref_error.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/pointer/fail_deref_error.carbon
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// CHECK:STDERR: fail_deref_error.carbon:[[@LINE+4]]:15: error: name `undeclared` not found [NameNotFound]
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// CHECK:STDERR: let n: i32 = *undeclared;
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// CHECK:STDERR: ^~~~~~~~~~
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// CHECK:STDERR:
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let n: i32 = *undeclared;
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// CHECK:STDERR: fail_deref_error.carbon:[[@LINE+4]]:15: error: name `undeclared` not found [NameNotFound]
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// CHECK:STDERR: let n2: i32 = undeclared->foo;
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// CHECK:STDERR: ^~~~~~~~~~
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// CHECK:STDERR:
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let n2: i32 = undeclared->foo;
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// CHECK:STDOUT: --- fail_deref_error.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
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// CHECK:STDOUT: %Int.type: type = generic_class_type @Int [concrete]
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// CHECK:STDOUT: %Int.generic: %Int.type = struct_value () [concrete]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
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// CHECK:STDOUT: %pattern_type.6b6: type = pattern_type %i32 [concrete]
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// CHECK:STDOUT: %n.patt: %pattern_type.6b6 = value_binding_pattern n [concrete]
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// CHECK:STDOUT: %n2.patt: %pattern_type.6b6 = value_binding_pattern n2 [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: %Core: <namespace> = namespace file.%Core.import, [concrete] {
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// CHECK:STDOUT: .Int = %Core.Int
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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: %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
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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 [concrete] {
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// CHECK:STDOUT: .Core = imports.%Core
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// CHECK:STDOUT: .n = %n
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// CHECK:STDOUT: .undeclared = <poisoned>
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// CHECK:STDOUT: .n2 = %n2
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %n.patt: %pattern_type.6b6 = value_binding_pattern n [concrete = constants.%n.patt]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %i32.loc19: type = type_literal constants.%i32 [concrete = constants.%i32]
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// CHECK:STDOUT: %n: %i32 = value_binding n, <error> [concrete = <error>]
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %n2.patt: %pattern_type.6b6 = value_binding_pattern n2 [concrete = constants.%n2.patt]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %i32.loc24: type = type_literal constants.%i32 [concrete = constants.%i32]
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// CHECK:STDOUT: %n2: %i32 = value_binding n2, <error> [concrete = <error>]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @__global_init() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %undeclared.ref.loc19: <error> = name_ref undeclared, <error> [concrete = <error>]
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// CHECK:STDOUT: %.loc19: ref <error> = deref <error> [concrete = <error>]
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// CHECK:STDOUT: %undeclared.ref.loc24: <error> = name_ref undeclared, <error> [concrete = <error>]
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// CHECK:STDOUT: %.loc24: ref <error> = deref <error> [concrete = <error>]
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// CHECK:STDOUT: %foo.ref: <error> = name_ref foo, <error> [concrete = <error>]
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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