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3a3959d253
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/57396 A new type SourceRef is introduced to represent a unique identifier to source text. The type holds refcount to underlying source, and supports comparators and hash functions, such that it can be used in C++ and Python maps. In later diffs we will use this to aggregate and print profiling information. Test Plan: Imported from OSS Reviewed By: nikithamalgifb Differential Revision: D28133578 fbshipit-source-id: c3d5199a8269c5006c85a145b281bcaaf3e2dc1c
44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
#pragma once
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#include <functional>
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#include <memory>
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#include <c10/macros/Export.h>
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#include <torch/csrc/jit/frontend/source_range.h>
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namespace torch {
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namespace jit {
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/**
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* SourceRef does two things:
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* 1. Owns a Source object.
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* 2. Serves as lookup key to the owned Source in associative containers, for
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* runtime data aggregation.
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* We don't want to use std::shared_ptr<Source> directly because we want to
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* support heteogeneous lookup, and also shared_ptr is an implementation detail
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* which should be encapsulated.
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*/
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class TORCH_API SourceRef {
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public:
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explicit SourceRef(std::shared_ptr<Source> source)
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: source_(std::move(source)) {}
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bool operator==(const SourceRef& other) const {
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return source_ == other.source_;
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}
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bool operator<(const Source& other) const {
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return source_.get() < &other;
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}
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friend bool operator<(const Source& other, const SourceRef& self) {
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return &other < self.source_.get();
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}
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bool operator<(const SourceRef& other) const {
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return *this < *other.source_.get();
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}
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private:
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std::shared_ptr<Source> source_;
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};
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} // namespace jit
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} // namespace torch
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