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https://github.com/carbon-language/carbon-lang.git
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Richard SmithandChandler Carruth
6cbf280a68
Add a textual IR format to the toolchain. The exact details of the format are somewhat arbitrary right now, and I expect them to change as we refine the semantics IR model, but at the moment they're somewhat directly following the current structure of the IR. Semantics tests currently test both the "raw" format, which shows the details of the representation, and the textual format, which is somewhat higher level. We may want to revisit that decision once the textual format is a bit more stable, and test only the textual format in most of these tests, but for now it seems prudent to keep both sets of tests. --------- Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
76 lines
3.0 KiB
C++
76 lines
3.0 KiB
C++
// 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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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include <string>
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/VirtualFileSystem.h"
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#include "llvm/Support/raw_ostream.h"
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#include "testing/util/test_raw_ostream.h"
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#include "toolchain/common/yaml_test_helpers.h"
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#include "toolchain/driver/driver.h"
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namespace Carbon::Testing {
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namespace {
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using ::testing::_;
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using ::testing::AllOf;
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using ::testing::Contains;
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using ::testing::Each;
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using ::testing::ElementsAre;
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using ::testing::IsEmpty;
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using ::testing::MatchesRegex;
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using ::testing::Pair;
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TEST(SemanticsIRTest, YAML) {
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llvm::vfs::InMemoryFileSystem fs;
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CARBON_CHECK(fs.addFile("test.carbon", /*ModificationTime=*/0,
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llvm::MemoryBuffer::getMemBuffer("var x: i32 = 0;")));
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TestRawOstream print_stream;
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Driver d(fs, print_stream, llvm::errs());
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d.RunFullCommand({"dump", "raw-semantics-ir", "test.carbon"});
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// Matches the ID of a node. The numbers may change because of builtin
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// cross-references, so this code is only doing loose structural checks.
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auto node_id = Yaml::Scalar(MatchesRegex(R"(node\+\d+)"));
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auto node_builtin = Yaml::Scalar(MatchesRegex(R"(node\w+)"));
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auto type_id = Yaml::Scalar(MatchesRegex(R"(type\d+)"));
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EXPECT_THAT(
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Yaml::Value::FromText(print_stream.TakeStr()),
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ElementsAre(Yaml::Mapping(ElementsAre(
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Pair("cross_reference_irs_size", "1"),
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Pair("functions", Yaml::Sequence(IsEmpty())),
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Pair("integer_literals", Yaml::Sequence(ElementsAre("0"))),
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Pair("real_literals", Yaml::Sequence(IsEmpty())),
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Pair("strings", Yaml::Sequence(ElementsAre("x"))),
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Pair("types", Yaml::Sequence(ElementsAre(node_builtin))),
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Pair("type_blocks", Yaml::Sequence(IsEmpty())),
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Pair("nodes",
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Yaml::Sequence(AllOf(
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// kind is required, other parts are optional.
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Each(Yaml::Mapping(Contains(Pair("kind", _)))),
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// A 0-arg node.
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Contains(Yaml::Mapping(ElementsAre(
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Pair("kind", "VarStorage"), Pair("type", type_id)))),
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// A 1-arg node.
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Contains(Yaml::Mapping(ElementsAre(
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Pair("kind", "IntegerLiteral"), Pair("arg0", "int0"),
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Pair("type", type_id)))),
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// A 2-arg node.
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Contains(Yaml::Mapping(ElementsAre(
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Pair("kind", "BindName"), Pair("arg0", "str0"),
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Pair("arg1", node_id), Pair("type", type_id))))))),
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// This production has only one node block.
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Pair("node_blocks",
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Yaml::Sequence(ElementsAre(Yaml::Sequence(IsEmpty()),
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Yaml::Sequence(Each(node_id)))))))));
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}
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} // namespace
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} // namespace Carbon::Testing
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