899cb34868
Exceptions were detected by checking for a pending exception on the
isolate, but {CallWasmFunctionForTesting} was clearing any pending
exception before returning.
This CL fixes that by explicitly passing back a boolean which is set if
an exception occurred during execution.
R=ahaas@chromium.org
Bug: chromium:1115280
Change-Id: Ife71ceef0751d18e0870335b9520c2bf77e351cc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2352787
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69404}
115 lines
4.2 KiB
C++
115 lines
4.2 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_WASM_MODULE_RUNNER_H_
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#define V8_WASM_MODULE_RUNNER_H_
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#include "src/execution/isolate.h"
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#include "src/objects/objects.h"
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#include "src/wasm/wasm-module.h"
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#include "src/wasm/wasm-objects.h"
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#include "src/wasm/wasm-result.h"
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#include "src/zone/zone.h"
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namespace v8 {
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namespace internal {
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template <typename T>
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class Handle;
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template <typename T>
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class MaybeHandle;
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namespace wasm {
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namespace testing {
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// Returns a MaybeHandle to the JsToWasm wrapper of the wasm function exported
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// with the given name by the provided instance.
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MaybeHandle<WasmExportedFunction> GetExportedFunction(
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Isolate* isolate, Handle<WasmInstanceObject> instance, const char* name);
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// Call an exported wasm function by name. Returns -1 if the export does not
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// exist or throws an error. Errors are cleared from the isolate before
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// returning. {exception} is set to to true if an exception happened during
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// execution of the wasm function.
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int32_t CallWasmFunctionForTesting(Isolate* isolate,
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Handle<WasmInstanceObject> instance,
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const char* name, int argc,
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Handle<Object> argv[],
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bool* exception = nullptr);
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// Decode, verify, and run the function labeled "main" in the
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// given encoded module. The module should have no imports.
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int32_t CompileAndRunWasmModule(Isolate* isolate, const byte* module_start,
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const byte* module_end);
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// Decode and compile the given module with no imports.
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MaybeHandle<WasmModuleObject> CompileForTesting(Isolate* isolate,
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ErrorThrower* thrower,
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const ModuleWireBytes& bytes);
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// Decode, compile, and instantiate the given module with no imports.
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MaybeHandle<WasmInstanceObject> CompileAndInstantiateForTesting(
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Isolate* isolate, ErrorThrower* thrower, const ModuleWireBytes& bytes);
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class WasmInterpretationResult {
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public:
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static WasmInterpretationResult Failed() { return {kFailed, 0, false}; }
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static WasmInterpretationResult Trapped(bool possible_nondeterminism) {
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return {kTrapped, 0, possible_nondeterminism};
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}
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static WasmInterpretationResult Finished(int32_t result,
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bool possible_nondeterminism) {
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return {kFinished, result, possible_nondeterminism};
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}
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// {failed()} captures different reasons: The module was invalid, no function
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// to call was found in the module, the function did not termine within a
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// limited number of steps, or a stack overflow happened.
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bool failed() const { return status_ == kFailed; }
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bool trapped() const { return status_ == kTrapped; }
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bool finished() const { return status_ == kFinished; }
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int32_t result() const {
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DCHECK_EQ(status_, kFinished);
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return result_;
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}
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bool possible_nondeterminism() const { return possible_nondeterminism_; }
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private:
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enum Status { kFinished, kTrapped, kFailed };
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const Status status_;
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const int32_t result_;
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const bool possible_nondeterminism_;
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WasmInterpretationResult(Status status, int32_t result,
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bool possible_nondeterminism)
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: status_(status),
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result_(result),
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possible_nondeterminism_(possible_nondeterminism) {}
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};
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// Interprets the given module, starting at the function specified by
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// {function_index}. The return type of the function has to be int32. The module
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// should not have any imports or exports
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WasmInterpretationResult InterpretWasmModule(
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Isolate* isolate, Handle<WasmInstanceObject> instance,
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int32_t function_index, WasmValue* args);
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// Generate an array of default arguments for the given signature.
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std::unique_ptr<WasmValue[]> MakeDefaultArguments(Isolate* isolate,
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const FunctionSig* sig);
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// Install function map, module symbol for testing
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void SetupIsolateForWasmModule(Isolate* isolate);
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} // namespace testing
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} // namespace wasm
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} // namespace internal
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} // namespace v8
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#endif // V8_WASM_MODULE_RUNNER_H_
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