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https://github.com/carbon-language/carbon-lang.git
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Dana Jansens
a46f4863db
Push a scope_stack entry for match_first blocks, and handle impls being inside those scope entries. An impl should not use the `match_first` block as its "enclosing scope" for the purpose of deciding if the impl is a redecl of another impl. We should look through it to the class or namespace the impl (and match_first) are located inside. We don't yet store the relationship between the impl and its match_first block, nor then can we use it in impl lookup for prioritization.
115 lines
2.1 KiB
Plaintext
115 lines
2.1 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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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/none.carbon
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// ^ARGS: -v compile %s
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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/match_first/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/check/testdata/match_first/basic.carbon
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// --- empty.carbon
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library "[[@TEST_NAME]]";
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match_first {}
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// --- todo_fail_class_inside.carbon
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library "[[@TEST_NAME]]";
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match_first {
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// TODO: Only impls are allowed inside match_first.
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class C;
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}
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// --- todo_fail_interface_inside.carbon
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library "[[@TEST_NAME]]";
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match_first {
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// TODO: Only impls are allowed inside match_first.
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interface Z;
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}
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// --- todo_fail_constraint_inside.carbon
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library "[[@TEST_NAME]]";
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match_first {
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// TODO: Only impls are allowed inside match_first.
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constraint N;
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}
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// --- todo_fail_function_inside.carbon
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library "[[@TEST_NAME]]";
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match_first {
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// TODO: Only impls are allowed inside match_first.
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fn F();
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}
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// --- todo_fail_final_inside.carbon
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library "[[@TEST_NAME]]";
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interface Z {}
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match_first {
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// TODO: Can't write `final` inside the match first.
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final impl () as Z {}
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}
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// --- decl.carbon
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library "[[@TEST_NAME]]";
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interface Z {}
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match_first {
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impl () as Z;
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}
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impl () as Z {}
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// --- definition.carbon
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library "[[@TEST_NAME]]";
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interface Z {}
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match_first {
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impl () as Z {}
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}
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// --- redecl.carbon
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library "[[@TEST_NAME]]";
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interface Z {}
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impl () as Z;
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match_first {
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impl () as Z {}
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}
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// --- inside_class.carbon
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library "[[@TEST_NAME]]";
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interface Z {}
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class C {
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match_first {
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impl Self as Z {}
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}
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}
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// --- todo_fail_inside_match_first.carbon
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library "[[@TEST_NAME]]";
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interface Z {}
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match_first {
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// TODO: Can't write match_first in another match_first, that puts the same
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// impl in two match_first blocks.
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match_first {
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impl () as Z {}
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}
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}
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