forked from OSchip/llvm-project
63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
//===- InputEvent.h ---------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Wasm events are features that suspend the current execution and transfer the
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// control flow to a corresponding handler. Currently the only supported event
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// kind is exceptions.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLD_WASM_INPUT_EVENT_H
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#define LLD_WASM_INPUT_EVENT_H
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#include "Config.h"
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#include "InputFiles.h"
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#include "WriterUtils.h"
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#include "lld/Common/ErrorHandler.h"
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#include "llvm/Object/Wasm.h"
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namespace lld {
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namespace wasm {
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// Represents a single Wasm Event within an input file. These are combined to
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// form the final EVENTS section.
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class InputEvent {
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public:
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InputEvent(const WasmSignature &S, const WasmEvent &E, ObjFile *F)
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: File(F), Event(E), Signature(S), Live(!Config->GcSections) {}
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StringRef getName() const { return Event.SymbolName; }
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const WasmEventType &getType() const { return Event.Type; }
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uint32_t getEventIndex() const { return EventIndex.getValue(); }
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bool hasEventIndex() const { return EventIndex.hasValue(); }
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void setEventIndex(uint32_t Index) {
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assert(!hasEventIndex());
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EventIndex = Index;
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}
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ObjFile *File;
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WasmEvent Event;
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const WasmSignature &Signature;
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bool Live = false;
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protected:
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llvm::Optional<uint32_t> EventIndex;
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};
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} // namespace wasm
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inline std::string toString(const wasm::InputEvent *E) {
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return (toString(E->File) + ":(" + E->getName() + ")").str();
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}
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} // namespace lld
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#endif // LLD_WASM_INPUT_EVENT_H
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