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Copy pathparser.h
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68 lines (60 loc) · 2.49 KB
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/*
* Copyright (c) 2015 PLUMgrid, Inc.
*
* Licensed 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.
*/
#pragma once
#include <fstream> // NOLINT
#include "node.h"
#include "lexer.h"
#include "scope.h"
namespace ebpf {
namespace cc {
using std::pair;
using std::string;
using std::vector;
class Parser {
public:
explicit Parser(const string& infile)
: root_node_(NULL), scopes_(new Scopes), in_(infile), lexer(&in_), parser(lexer, *this) {
// parser.set_debug_level(1);
}
~Parser() { delete root_node_; }
int parse() {
return parser.parse();
}
VariableDeclStmtNode * variable_add(vector<int> *types, VariableDeclStmtNode *decl);
VariableDeclStmtNode * variable_add(vector<int> *types, VariableDeclStmtNode *decl, ExprNode *init_expr);
StructVariableDeclStmtNode * variable_add(StructVariableDeclStmtNode *decl, ExprNodeList *args, bool is_kv);
StmtNode * state_add(Scopes::StateScope *scope, IdentExprNode *id1, BlockStmtNode *body);
StmtNode * state_add(Scopes::StateScope *scope, IdentExprNode *id1, IdentExprNode *id2, BlockStmtNode *body);
StmtNode * func_add(std::vector<int> *types, Scopes::StateScope *scope,
IdentExprNode *id, FormalList *formals, BlockStmtNode *body);
StmtNode * table_add(IdentExprNode *type, IdentExprNodeList *templates, IdentExprNode *id, string *size);
StmtNode * struct_add(IdentExprNode *type, FormalList *formals);
StmtNode * result_add(int token, IdentExprNode *id, FormalList *formals, BlockStmtNode *body);
bool variable_exists(VariableDeclStmtNode *decl) const;
bool table_exists(TableDeclStmtNode *decl, bool search_local = true);
void add_pragma(const std::string& pr, const std::string& v) { pragmas_[pr] = v; }
void set_loc(Node *n, const BisonParser::location_type &loc) const;
std::string pragma(const std::string &name) const;
Node *root_node_;
Scopes::Ptr scopes_;
std::map<std::string, std::string> pragmas_;
private:
std::ifstream in_;
Lexer lexer;
BisonParser parser;
};
} // namespace cc
} // namespace ebpf