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https://github.com/rbock/sqlpp11.git
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74cafe35dd
Before this, there could be multiple classes representing multiple id columns. Now there is one class representing ALL the name "id". Very important for analyzing potential name clashes.
196 lines
8.0 KiB
Python
Executable File
196 lines
8.0 KiB
Python
Executable File
#!/usr/bin/env python
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##
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# Copyright (c) 2013-2014, Roland Bock
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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# OF THE POSSIBILITY OF SUCH DAMAGE.
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##
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from __future__ import print_function
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import sys
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import re
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import os
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from pyparsing import CaselessLiteral, SkipTo, restOfLine, oneOf, ZeroOrMore, Optional, \
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WordStart, WordEnd, Word, alphas, alphanums, nums, QuotedString, nestedExpr, MatchFirst, OneOrMore, delimitedList, Or, Group
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INCLUDE = 'sqlpp11'
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NAMESPACE = 'sqlpp'
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# HELPERS
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def get_include_guard_name(namespace, inputfile):
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val = re.sub("[^A-Za-z]+", "_", namespace + '_' + os.path.basename(inputfile))
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return val.upper()
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def repl_func(m):
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if (m.group(1) == '_'):
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return m.group(2).upper()
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else:
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return m.group(1) + m.group(2).upper()
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def toClassName(s):
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return re.sub("(^|\s|[_0-9])(\S)", repl_func, s)
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def toMemberName(s):
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return re.sub("(\s|_|[0-9])(\S)", repl_func, s)
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# PARSER
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def ddlWord(string):
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return WordStart(alphanums + "_") + CaselessLiteral(string) + WordEnd(alphanums + "_")
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ddlString = Or([QuotedString("'"), QuotedString("\"", escQuote='""'), QuotedString("`")])
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ddlNum = Word(nums + ".")
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ddlTerm = Word(alphas, alphanums + "_$")
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ddlArguments = "(" + delimitedList(Or([ddlString, ddlTerm, ddlNum])) + ")"
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ddlNotNull = Group(ddlWord("NOT") + ddlWord("NULL")).setResultsName("notNull")
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ddlDefaultValue = ddlWord("DEFAULT").setResultsName("hasDefaultValue");
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ddlAutoValue = ddlWord("AUTO_INCREMENT").setResultsName("hasAutoValue");
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ddlColumnComment = Group(ddlWord("COMMENT") + ddlString).setResultsName("comment")
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ddlConstraint = Or([
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ddlWord("CONSTRAINT"),
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ddlWord("PRIMARY"),
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ddlWord("FOREIGN"),
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ddlWord("KEY"),
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ddlWord("INDEX"),
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ddlWord("UNIQUE"),
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])
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ddlColumn = Group(Optional(ddlConstraint).setResultsName("isConstraint") + OneOrMore(MatchFirst([ddlNotNull, ddlAutoValue, ddlDefaultValue, ddlTerm, ddlNum, ddlColumnComment, ddlString, ddlArguments])))
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createTable = Group(ddlWord("CREATE") + ddlWord("TABLE") + ddlTerm.setResultsName("tableName") + "(" + Group(delimitedList(ddlColumn)).setResultsName("columns") + ")").setResultsName("create")
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ddl = ZeroOrMore(SkipTo(createTable, True))
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ddlComment = oneOf(["--", "#"]) + restOfLine
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ddl.ignore(ddlComment)
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# MAP SQL TYPES
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types = {
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'tinyint': 'tinyint',
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'smallint': 'smallint',
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'integer': 'integer',
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'int': 'integer',
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'bigint': 'bigint',
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'char': 'char_',
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'varchar': 'varchar',
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'text': 'text',
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'tinyblob': 'blob',
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'blob': 'blob',
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'mediumblob': 'blob',
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'longblob': 'blob',
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'bool': 'boolean',
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'double': 'floating_point',
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'float': 'floating_point',
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}
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# PROCESS DDL
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if (len(sys.argv) != 4):
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print('Usage: ddl2cpp <path to ddl> <path to target (without extension, e.g. /tmp/MyTable)> <namespace>')
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sys.exit(1)
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pathToDdl = sys.argv[1]
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pathToHeader = sys.argv[2] + '.h'
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namespace = sys.argv[3]
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ddlFile = open(pathToDdl, 'r')
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header = open(pathToHeader, 'w')
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print('#ifndef '+get_include_guard_name(namespace, pathToHeader), file=header)
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print('#define '+get_include_guard_name(namespace, pathToHeader), file=header)
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print('', file=header)
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print('#include <' + INCLUDE + '/table.h>', file=header)
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print('#include <' + INCLUDE + '/column_types.h>', file=header)
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print('#include <' + INCLUDE + '/char_sequence.h>', file=header)
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print('', file=header)
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print('namespace ' + namespace, file=header)
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print('{', file=header)
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tableCreations = ddl.parseFile(pathToDdl)
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for tableCreation in tableCreations:
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sqlTableName = tableCreation.create.tableName
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tableClass = toClassName(sqlTableName)
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tableMember = toMemberName(sqlTableName)
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tableNamespace = tableClass + '_'
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tableTemplateParameters = tableClass
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print(' namespace ' + tableNamespace, file=header)
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print(' {', file=header)
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for column in tableCreation.create.columns:
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if column.isConstraint:
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continue
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sqlColumnName = column[0]
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columnClass = toClassName(sqlColumnName)
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tableTemplateParameters += ',\n ' + tableNamespace + '::' + columnClass
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columnMember = toMemberName(sqlColumnName)
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sqlColumnType = column[1].lower()
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columnCanBeNull = not column.notNull
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print(' struct ' + columnClass, file=header)
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print(' {', file=header)
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print(' struct _alias_t', file=header)
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print(' {', file=header)
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print(' static constexpr const char _literal[] = "' + sqlColumnName + '";', file=header)
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print(' using _name_t = sqlpp::make_char_sequence<sizeof(_literal), _literal>;', file=header)
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print(' template<typename T>', file=header)
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print(' struct _member_t', file=header)
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print(' {', file=header)
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print(' T ' + columnMember + ';', file=header)
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print(' T& operator()() { return ' + columnMember + '; }', file=header)
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print(' const T& operator()() const { return ' + columnMember + '; }', file=header)
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print(' };', file=header)
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print(' };', file=header)
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traitslist = [NAMESPACE + '::' + types[sqlColumnType]];
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requireInsert = True
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if column.hasAutoValue:
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traitslist.append(NAMESPACE + '::tag::must_not_insert');
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traitslist.append(NAMESPACE + '::tag::must_not_update');
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requireInsert = False
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if not column.notNull:
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traitslist.append(NAMESPACE + '::tag::can_be_null');
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requireInsert = False
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if column.hasDefaultValue:
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requireInsert = False
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if requireInsert:
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traitslist.append(NAMESPACE + '::tag::require_insert');
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print(' using _traits = ' + NAMESPACE + '::make_traits<' + ', '.join(traitslist) + '>;', file=header)
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print(' };', file=header)
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print(' }', file=header)
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print('', file=header)
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print(' struct ' + tableClass + ': ' + NAMESPACE + '::table_t<' + tableTemplateParameters + '>', file=header)
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print(' {', file=header)
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print(' struct _alias_t', file=header)
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print(' {', file=header)
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print(' static constexpr const char _literal[] = "' + sqlTableName + '";', file=header)
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print(' using _name_t = sqlpp::make_char_sequence<sizeof(_literal), _literal>;', file=header)
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print(' template<typename T>', file=header)
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print(' struct _member_t', file=header)
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print(' {', file=header)
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print(' T ' + tableMember + ';', file=header)
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print(' T& operator()() { return ' + tableMember + '; }', file=header)
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print(' const T& operator()() const { return ' + tableMember + '; }', file=header)
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print(' };', file=header)
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print(' };', file=header)
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print(' };', file=header)
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print('}', file=header)
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print('#endif', file=header)
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