jroesch commented on a change in pull request #5932: URL: https://github.com/apache/incubator-tvm/pull/5932#discussion_r448220277
########## File path: src/parser/op_table.h ########## @@ -0,0 +1,93 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +/*! + * \file token.h + * \brief A operator table for parsing. + * + * Provides symbolic token sequences to map to TVM operators, with a given associativity and arity. + */ + +#ifndef TVM_PARSER_OP_TABLE_H_ +#define TVM_PARSER_OP_TABLE_H_ + +#include <fstream> +#include <tvm/runtime/object.h> +#include <tvm/runtime/container.h> +#include <tvm/ir/op.h> +#include "./tokenizer.h" + +namespace tvm { +namespace parser { + + +struct Rule { + std::vector<TokenType> tokens; + int precedence; + int arity; + tvm::Op op; + bool left_assoc; + + Rule() : tokens(), precedence(0), arity(0 ), op(tvm::Op()), left_assoc(false) {} + + Rule(std::vector<TokenType> tokens, tvm::Op op, int precedence, int arity = 2, bool left_assoc = false) + : tokens(tokens), precedence(precedence), arity(arity), op(op), left_assoc(false) {} + + Rule(const Rule& rule) { + this->tokens = rule.tokens; + this->op = rule.op; + this->precedence = rule.precedence; + this->arity = rule.arity; + this->left_assoc = rule.left_assoc; + } +}; + +struct OperatorTable { + std::vector<Rule> rules; + std::unordered_map<std::string, Rule> this_is_a_hack; Review comment: This was to codify that I need a better solution here, ideally I need some kind of `std::trie` but I don't really want to implement a prefix tree for this relatively simple use case. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
