mirror of
https://github.com/carbon-language/carbon-lang.git
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Dana Jansens
22580a47d3
Type check named constraint decls and definitions. We don't correctly error if you put a `fn` inside them. There is no support for `require` or `alias` yet, so there's nothing useful you can do with them yet. We have attempted to share code between `interface` and `constraint` as they are quite similar. First by splitting out some of handle_interface.cpp to a separate file. Second by sharing some code paths when you want a facet type from either one, as they both turn into a facet type.
51 lines
2.2 KiB
Plaintext
51 lines
2.2 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/parse/testdata/generics/named_constraint/basic.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/parse/testdata/generics/named_constraint/basic.carbon
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// --- empty.carbon
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constraint Empty {}
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// --- with_require.carbon
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constraint WithRequire {
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// TODO: Add a require statement.
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}
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// --- forward_decl.carbon
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constraint ForwardDeclared;
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// CHECK:STDOUT: - filename: empty.carbon
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// CHECK:STDOUT: parse_tree: [
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// CHECK:STDOUT: {kind: 'FileStart', text: ''},
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// CHECK:STDOUT: {kind: 'NamedConstraintIntroducer', text: 'constraint'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'Empty'},
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// CHECK:STDOUT: {kind: 'NamedConstraintDefinitionStart', text: '{', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'NamedConstraintDefinition', text: '}', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: - filename: with_require.carbon
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// CHECK:STDOUT: parse_tree: [
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// CHECK:STDOUT: {kind: 'FileStart', text: ''},
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// CHECK:STDOUT: {kind: 'NamedConstraintIntroducer', text: 'constraint'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'WithRequire'},
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// CHECK:STDOUT: {kind: 'NamedConstraintDefinitionStart', text: '{', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'NamedConstraintDefinition', text: '}', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: - filename: forward_decl.carbon
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// CHECK:STDOUT: parse_tree: [
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// CHECK:STDOUT: {kind: 'FileStart', text: ''},
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// CHECK:STDOUT: {kind: 'NamedConstraintIntroducer', text: 'constraint'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'ForwardDeclared'},
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// CHECK:STDOUT: {kind: 'NamedConstraintDecl', text: ';', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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