Add fuzzer for Inspector

BUG=tint:445

Change-Id: Ic342c7e83827bcc57bfd134dec92b03cb9708a70
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/37540
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>

fuzzers/tint_common_fuzzer.cc

@@ -23,13 +23,13 @@ namespace tint {
 namespace fuzzers {
 
 CommonFuzzer::CommonFuzzer(InputFormat input, OutputFormat output)
-    : input_(input), output_(output) {}
+    : input_(input), output_(output), inspector_enabled_(false) {}
 CommonFuzzer::~CommonFuzzer() = default;
 
 int CommonFuzzer::Run(const uint8_t* data, size_t size) {
-  std::unique_ptr<tint::reader::Reader> parser;
+  std::unique_ptr<reader::Reader> parser;
 #if TINT_BUILD_WGSL_READER
-  std::unique_ptr<tint::Source::File> file;
+  std::unique_ptr<Source::File> file;
 #endif  // TINT_BUILD_WGSL_READER
 
   switch (input_) {
@@ -38,8 +38,8 @@ int CommonFuzzer::Run(const uint8_t* data, size_t size) {
     {
       std::string str(reinterpret_cast<const char*>(data), size);
 
-      file = std::make_unique<tint::Source::File>("test.wgsl", str);
-      parser = std::make_unique<tint::reader::wgsl::Parser>(file.get());
+      file = std::make_unique<Source::File>("test.wgsl", str);
+      parser = std::make_unique<reader::wgsl::Parser>(file.get());
     }
 #endif  // TINT_BUILD_WGSL_READER
     break;
@@ -51,7 +51,7 @@ int CommonFuzzer::Run(const uint8_t* data, size_t size) {
       std::vector<uint32_t> input(u32Data, u32Data + sizeInU32);
 
       if (input.size() != 0) {
-        parser = std::make_unique<tint::reader::spirv::Parser>(input);
+        parser = std::make_unique<reader::spirv::Parser>(input);
       }
     }
 #endif  // TINT_BUILD_WGSL_READER
@@ -77,16 +77,78 @@ int CommonFuzzer::Run(const uint8_t* data, size_t size) {
     return 0;
   }
 
-  tint::TypeDeterminer td(&mod);
+  TypeDeterminer td(&mod);
   if (!td.Determine()) {
     return 0;
   }
 
-  tint::Validator v;
+  Validator v;
   if (!v.Validate(&mod)) {
     return 0;
   }
 
+  if (inspector_enabled_) {
+    inspector::Inspector inspector(mod);
+
+    auto entry_points = inspector.GetEntryPoints();
+    if (inspector.has_error()) {
+      return 0;
+    }
+
+    for (auto& ep : entry_points) {
+      auto remapped_name = inspector.GetRemappedNameForEntryPoint(ep.name);
+      if (inspector.has_error()) {
+        return 0;
+      }
+
+      auto constant_ids = inspector.GetConstantIDs();
+      if (inspector.has_error()) {
+        return 0;
+      }
+
+      auto uniform_bindings =
+          inspector.GetUniformBufferResourceBindings(ep.name);
+      if (inspector.has_error()) {
+        return 0;
+      }
+
+      auto storage_bindings =
+          inspector.GetStorageBufferResourceBindings(ep.name);
+      if (inspector.has_error()) {
+        return 0;
+      }
+
+      auto readonly_bindings =
+          inspector.GetReadOnlyStorageBufferResourceBindings(ep.name);
+      if (inspector.has_error()) {
+        return 0;
+      }
+
+      auto sampler_bindings = inspector.GetSamplerResourceBindings(ep.name);
+      if (inspector.has_error()) {
+        return 0;
+      }
+
+      auto comparison_sampler_bindings =
+          inspector.GetComparisonSamplerResourceBindings(ep.name);
+      if (inspector.has_error()) {
+        return 0;
+      }
+
+      auto sampled_texture_bindings =
+          inspector.GetSampledTextureResourceBindings(ep.name);
+      if (inspector.has_error()) {
+        return 0;
+      }
+
+      auto multisampled_texture_bindings =
+          inspector.GetMultisampledTextureResourceBindings(ep.name);
+      if (inspector.has_error()) {
+        return 0;
+      }
+    }
+  }
+
   if (transform_manager_) {
     auto out = transform_manager_->Run(&mod);
     if (out.diagnostics.contains_errors()) {
@@ -96,27 +158,27 @@ int CommonFuzzer::Run(const uint8_t* data, size_t size) {
     mod = std::move(out.module);
   }
 
-  std::unique_ptr<tint::writer::Writer> writer;
+  std::unique_ptr<writer::Writer> writer;
 
   switch (output_) {
     case OutputFormat::kWGSL:
 #if TINT_BUILD_WGSL_WRITER
-      writer = std::make_unique<tint::writer::wgsl::Generator>(std::move(mod));
+      writer = std::make_unique<writer::wgsl::Generator>(std::move(mod));
 #endif  // TINT_BUILD_WGSL_WRITER
       break;
     case OutputFormat::kSpv:
 #if TINT_BUILD_SPV_WRITER
-      writer = std::make_unique<tint::writer::spirv::Generator>(std::move(mod));
+      writer = std::make_unique<writer::spirv::Generator>(std::move(mod));
 #endif  // TINT_BUILD_SPV_WRITER
       break;
     case OutputFormat::kHLSL:
 #if TINT_BUILD_HLSL_WRITER
-      writer = std::make_unique<tint::writer::hlsl::Generator>(std::move(mod));
+      writer = std::make_unique<writer::hlsl::Generator>(std::move(mod));
 #endif  // TINT_BUILD_HLSL_WRITER
       break;
     case OutputFormat::kMSL:
 #if TINT_BUILD_MSL_WRITER
-      writer = std::make_unique<tint::writer::msl::Generator>(std::move(mod));
+      writer = std::make_unique<writer::msl::Generator>(std::move(mod));
 #endif  // TINT_BUILD_MSL_WRITER
       break;
     case OutputFormat::kNone: