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| author | Thomas Lively <tlively@google.com> | 2024-12-03 11:20:36 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-12-03 11:20:36 -0800 |
| commit | 87f9dac127b387715d8d96ac7ec8fd469d8c2dab (patch) | |
| tree | aa1aec906bf6adc3ea3d93c56616d393850e2249 /test/gtest/source-map.cpp | |
| parent | f331120e4b942a795d4a6b6d0d5a3d781c1e6a4c (diff) | |
| download | binaryen-87f9dac127b387715d8d96ac7ec8fd469d8c2dab.tar.gz binaryen-87f9dac127b387715d8d96ac7ec8fd469d8c2dab.tar.bz2 binaryen-87f9dac127b387715d8d96ac7ec8fd469d8c2dab.zip | |
[NFC] Encapsulate source map reader state (#7132)
Move all state relevant to reading source maps out of WasmBinaryReader
and into a new utility, SourceMapReader. This is a prerequisite for
parallelizing the parsing of function bodies, since the source map
reader state is different at the beginning of each function.
Also take the opportunity to simplify the way we read source maps, for
example by deferring the reading of anything but the position of a debug
location until it will be used and by using `std::optional` instead of
singleton `std::set`s to store function prologue and epilogue debug
locations.
Diffstat (limited to 'test/gtest/source-map.cpp')
| -rw-r--r-- | test/gtest/source-map.cpp | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/test/gtest/source-map.cpp b/test/gtest/source-map.cpp new file mode 100644 index 000000000..c943be172 --- /dev/null +++ b/test/gtest/source-map.cpp @@ -0,0 +1,51 @@ +/* + * Copyright 2024 WebAssembly Community Group participants + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "source-map.h" +#include "print-test.h" +#include "gtest/gtest.h" + +using namespace wasm; + +using SourceMapTest = PrintTest; + +// Check that debug location parsers can handle single-segment mappings. +TEST_F(SourceMapTest, SourceMappingSingleSegment) { + auto text = "(module)"; + Module wasm; + parseWast(wasm, text); + + // A single-segment mapping starting at offset 0. + std::string sourceMap = R"( + { + "version": 3, + "sources": [], + "names": [], + "mappings": "A" + } + )"; + std::vector<char> buffer(sourceMap.begin(), sourceMap.end()); + + SourceMapReader reader(buffer); + + // Test `readSourceMapHeader` (only check for errors, as there is no mapping + // to print). + reader.readHeader(wasm); + + // Test `readNextDebugLocation`. + // TODO: Actually check the result. + reader.readDebugLocationAt(1); +} |