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Regex fuzzer: Change the region boundaries

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Changes the interval boundaries to exclude the first delimiter
that encloses a region.

Change-Id: Ia9186e584d9038b4220cad11d418fa9881e51e8d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60346
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Alastair Donaldson <afdx@google.com>
Commit-Queue: Alastair Donaldson <afdx@google.com>
This commit is contained in:
egj
2021-08-02 20:56:39 +00:00
committed by Tint LUCI CQ
parent c0fbce65d8
commit b75e4b96a6
5 changed files with 90 additions and 63 deletions
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13
fuzzers/tint_regex_fuzzer/fuzzer.cc
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@@ -18,7 +18,7 @@
#include "fuzzers/tint_common_fuzzer.h"
#include "fuzzers/tint_regex_fuzzer/cli.h"
#include "fuzzers/tint_regex_fuzzer/util.h"
#include "fuzzers/tint_regex_fuzzer/wgsl_mutator.h"
#include "src/reader/wgsl/parser.h"
@@ -52,13 +52,12 @@ extern "C" size_t LLVMFuzzerCustomMutator(uint8_t* data,
std::string wgsl_code(data, data + size);
const std::vector<std::string> delimiters{";"};
std::mt19937 generator(seed);
std::string delimiter = delimiters[std::uniform_int_distribution<size_t>(
0, delimiters.size() - 1)(generator)];
MutationKind mutation_kind =
static_cast<MutationKind>(std::uniform_int_distribution<size_t>(
0,
static_cast<size_t>(MutationKind::kNumMutationKinds) - 1)(generator));
std::string delimiter =
delimiters[GetRandomIntFromRange(0, delimiters.size() - 1, generator)];
MutationKind mutation_kind = static_cast<MutationKind>(GetRandomIntFromRange(
0, static_cast<size_t>(MutationKind::kNumMutationKinds) - 1, generator));
switch (mutation_kind) {
case MutationKind::kSwapIntervals: