mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 20:50:13 +01:00
Jon Ross-PerkinsandChandler Carruth
352fec1885
Example stack:
```
1. node_stack_:
0. FunctionDefinitionStart
1. ReturnStatement -> node1
2. node_block_stack_:
0. block0
1. block1
```
Example trace output:
```
*** SemanticsParseTreeHandler::Build Begin ***
Push 0: FunctionIntroducer
Push 1: DeclaredName
Push 2: ParameterListEnd
Pop 2: ParameterListEnd
Push 2: ParameterList
Pop 2: ParameterList
Pop 0: FunctionIntroducer
AddNode block0: FunctionDeclaration()
AddNode block0: BindName(ident0, node0)
AddNode block0: FunctionDefinition(node0, block1)
Push 0: FunctionDefinitionStart
Push 1: Literal -> IntegerLiteral
AddNode block1: IntegerLiteral(int0): node_xref1
Push 2: StatementEnd
Pop 2: StatementEnd
Pop 1: any (Literal) -> node0
Push 1: ReturnStatement -> ReturnExpression
AddNode block1: ReturnExpression(node0)
Pop 0: FunctionDefinitionStart
Push 0: FunctionDefinition
*** SemanticsParseTreeHandler::Build End ***
cross_reference_irs.size == 2,
cross_references = {
node_xref0 = "xref(ir0, block0, node0)";
node_xref1 = "xref(ir0, block0, node1)";
},
identifiers = {
ident0 = "Foo";
},
integer_literals = {
int0 = 0;
},
node_blocks = {
block0 = {
node0 = FunctionDeclaration();
node1 = BindName(ident0, node0);
node2 = FunctionDefinition(node0, block1);
},
block1 = {
node0 = IntegerLiteral(int0): node_xref1;
node1 = ReturnExpression(node0);
},
}
```
Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
50 lines
1.1 KiB
C++
50 lines
1.1 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 "common/vlog.h"
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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namespace Carbon::Testing {
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namespace {
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using ::testing::IsEmpty;
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using ::testing::StrEq;
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// Helper class with a vlog_stream_ member for CARBON_VLOG.
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class VLogger {
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public:
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explicit VLogger(bool enable) : buffer_(buffer_str_) {
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if (enable) {
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vlog_stream_ = &buffer_;
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}
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}
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void VLog() { CARBON_VLOG() << "Test\n"; }
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auto buffer() -> llvm::StringRef { return buffer_str_; }
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private:
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std::string buffer_str_;
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llvm::raw_string_ostream buffer_;
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llvm::raw_ostream* vlog_stream_ = nullptr;
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};
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TEST(VLogTest, Enabled) {
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VLogger vlog(/*enable=*/true);
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vlog.VLog();
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EXPECT_THAT(vlog.buffer(), StrEq("Test\n"));
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}
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TEST(VLogTest, Disabled) {
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VLogger vlog(/*enable=*/false);
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vlog.VLog();
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EXPECT_THAT(vlog.buffer(), IsEmpty());
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}
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} // namespace
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} // namespace Carbon::Testing
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