mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-30 22:02:41 +01:00
Dana JansensandJon Ross-Perkins
4b0e2b03b6
We add a virtual node (`CompileTimeBindingPatternStart`) as the first child of `CompileTimeBindingPattern` which holds the identifier underneath it, so that it is checked just before the type expression of the `CompileTimeBindingPattern`. When we reach this virtual node during check, we add `.Self` as a name in the current scope, and when we reach `CompileTimeBindingPattern` we remove it from scope, which ensures it's present during only the checking of the type expression for the compile time pattern. At the moment the `.Self` has a different type (it's a `TypeType`) than other `.Self` in the facet type (which are a single `FacetType`), but the intention is to immediately substitute it out of the facet type entirely, replacing it with a reference to the compile time binding (a `BindSymbolicName`) itself. A TODO has been added for this. --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
52 lines
2.6 KiB
Plaintext
52 lines
2.6 KiB
Plaintext
// 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
|
|
//
|
|
// AUTOUPDATE
|
|
// TIP: To test this file alone, run:
|
|
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/parse/testdata/let/fail_missing_name.carbon
|
|
// TIP: To dump output, run:
|
|
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/parse/testdata/let/fail_missing_name.carbon
|
|
|
|
// --- fail_runtime_binding.carbon
|
|
|
|
// CHECK:STDERR: fail_runtime_binding.carbon:[[@LINE+4]]:5: error: expected name in binding pattern [ExpectedBindingPattern]
|
|
// CHECK:STDERR: let : i32 = 4;
|
|
// CHECK:STDERR: ^
|
|
// CHECK:STDERR:
|
|
let : i32 = 4;
|
|
|
|
// --- fail_complietime_binding.carbon
|
|
|
|
// CHECK:STDERR: fail_complietime_binding.carbon:[[@LINE+4]]:5: error: expected name in binding pattern [ExpectedBindingPattern]
|
|
// CHECK:STDERR: let :! bool = true;
|
|
// CHECK:STDERR: ^~
|
|
// CHECK:STDERR:
|
|
let :! bool = true;
|
|
|
|
// CHECK:STDOUT: - filename: fail_runtime_binding.carbon
|
|
// CHECK:STDOUT: parse_tree: [
|
|
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
|
|
// CHECK:STDOUT: {kind: 'LetIntroducer', text: 'let'},
|
|
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: ':', has_error: yes},
|
|
// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
|
|
// CHECK:STDOUT: {kind: 'LetBindingPattern', text: ':', has_error: yes, subtree_size: 3},
|
|
// CHECK:STDOUT: {kind: 'LetInitializer', text: '='},
|
|
// CHECK:STDOUT: {kind: 'IntLiteral', text: '4'},
|
|
// CHECK:STDOUT: {kind: 'LetDecl', text: ';', subtree_size: 7},
|
|
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
|
|
// CHECK:STDOUT: ]
|
|
// CHECK:STDOUT: - filename: fail_complietime_binding.carbon
|
|
// CHECK:STDOUT: parse_tree: [
|
|
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
|
|
// CHECK:STDOUT: {kind: 'LetIntroducer', text: 'let'},
|
|
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: ':!', has_error: yes},
|
|
// CHECK:STDOUT: {kind: 'CompileTimeBindingPatternStart', text: ':!', has_error: yes, subtree_size: 2},
|
|
// CHECK:STDOUT: {kind: 'BoolTypeLiteral', text: 'bool'},
|
|
// CHECK:STDOUT: {kind: 'CompileTimeBindingPattern', text: ':!', has_error: yes, subtree_size: 4},
|
|
// CHECK:STDOUT: {kind: 'LetInitializer', text: '='},
|
|
// CHECK:STDOUT: {kind: 'BoolLiteralTrue', text: 'true'},
|
|
// CHECK:STDOUT: {kind: 'LetDecl', text: ';', subtree_size: 8},
|
|
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
|
|
// CHECK:STDOUT: ]
|