473 lines
17 KiB
Plaintext
473 lines
17 KiB
Plaintext
// (C) Copyright Gennadiy Rozental 2001.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/test for the library home page.
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//
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// File : $RCSfile$
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//
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// Version : $Revision$
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//
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// Description : formal parameter definition
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// ***************************************************************************
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#ifndef BOOST_TEST_UTILS_RUNTIME_PARAMETER_HPP
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#define BOOST_TEST_UTILS_RUNTIME_PARAMETER_HPP
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// Boost.Test Runtime parameters
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#include <boost/test/utils/runtime/fwd.hpp>
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#include <boost/test/utils/runtime/modifier.hpp>
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#include <boost/test/utils/runtime/argument.hpp>
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#include <boost/test/utils/runtime/argument_factory.hpp>
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// Boost.Test
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#include <boost/test/utils/class_properties.hpp>
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#include <boost/test/utils/foreach.hpp>
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// Boost
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#include <boost/function/function2.hpp>
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#include <boost/algorithm/cxx11/all_of.hpp>
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// STL
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#include <algorithm>
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#include <boost/test/detail/suppress_warnings.hpp>
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namespace boost {
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namespace runtime {
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// ************************************************************************** //
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// ************** runtime::parameter_cla_id ************** //
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// ************************************************************************** //
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// set of attributes identifying the parameter in the command line
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struct parameter_cla_id {
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parameter_cla_id( cstring prefix, cstring tag, cstring value_separator, bool negatable )
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: m_prefix( prefix.begin(), prefix.size() )
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, m_tag( tag.begin(), tag.size() )
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, m_value_separator( value_separator.begin(), value_separator.size() )
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, m_negatable( negatable )
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{
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BOOST_TEST_I_ASSRT( algorithm::all_of( m_prefix.begin(), m_prefix.end(), valid_prefix_char ),
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invalid_cla_id() << "Parameter " << m_tag
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<< " has invalid characters in prefix." );
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BOOST_TEST_I_ASSRT( algorithm::all_of( m_tag.begin(), m_tag.end(), valid_name_char ),
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invalid_cla_id() << "Parameter " << m_tag
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<< " has invalid characters in name." );
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BOOST_TEST_I_ASSRT( algorithm::all_of( m_value_separator.begin(), m_value_separator.end(), valid_separator_char ),
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invalid_cla_id() << "Parameter " << m_tag
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<< " has invalid characters in value separator." );
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}
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static bool valid_prefix_char( char c )
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{
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return c == '-' || c == '/' ;
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}
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static bool valid_separator_char( char c )
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{
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return c == '=' || c == ':' || c == ' ' || c == '\0';
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}
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static bool valid_name_char( char c )
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{
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return std::isalnum( c ) || c == '+' || c == '_' || c == '?';
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}
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std::string m_prefix;
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std::string m_tag;
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std::string m_value_separator;
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bool m_negatable;
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};
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typedef std::vector<parameter_cla_id> param_cla_ids;
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// ************************************************************************** //
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// ************** runtime::basic_param ************** //
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// ************************************************************************** //
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cstring const help_prefix("////");
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class basic_param {
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typedef function<void (cstring)> callback_type;
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typedef unit_test::readwrite_property<bool> bool_property;
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protected:
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/// Constructor with modifiers
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template<typename Modifiers>
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basic_param( cstring name, bool is_optional, bool is_repeatable, Modifiers const& m )
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: p_name( name.begin(), name.end() )
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, p_description( nfp::opt_get( m, description, std::string() ) )
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, p_help( nfp::opt_get( m, runtime::help, std::string() ) )
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, p_env_var( nfp::opt_get( m, env_var, std::string() ) )
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, p_value_hint( nfp::opt_get( m, value_hint, std::string() ) )
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, p_optional( is_optional )
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, p_repeatable( is_repeatable )
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, p_has_optional_value( m.has( optional_value ) )
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, p_has_default_value( m.has( default_value ) || is_repeatable )
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, p_callback( nfp::opt_get( m, callback, callback_type() ) )
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{
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add_cla_id( help_prefix, name, ":" );
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}
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public:
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virtual ~basic_param() {}
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// Pubic properties
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std::string const p_name;
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std::string const p_description;
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std::string const p_help;
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std::string const p_env_var;
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std::string const p_value_hint;
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bool const p_optional;
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bool const p_repeatable;
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bool_property p_has_optional_value;
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bool_property p_has_default_value;
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callback_type const p_callback;
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/// interface for cloning typed parameters
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virtual basic_param_ptr clone() const = 0;
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/// Access methods
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param_cla_ids const& cla_ids() const { return m_cla_ids; }
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void add_cla_id( cstring prefix, cstring tag, cstring value_separator )
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{
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add_cla_id_impl( prefix, tag, value_separator, false, true );
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}
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/// interface for producing argument values for this parameter
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virtual void produce_argument( cstring token, bool negative_form, arguments_store& store ) const = 0;
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virtual void produce_default( arguments_store& store ) const = 0;
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/// interfaces for help message reporting
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virtual void usage( std::ostream& ostr, cstring negation_prefix_ )
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{
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ostr << "Parameter: " << p_name << '\n';
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if( !p_description.empty() )
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ostr << ' ' << p_description << '\n';
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ostr << " Command line formats:\n";
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BOOST_TEST_FOREACH( parameter_cla_id const&, id, cla_ids() ) {
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if( id.m_prefix == help_prefix )
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continue;
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ostr << " " << id.m_prefix;
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if( id.m_negatable )
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cla_name_help( ostr, id.m_tag, negation_prefix_ );
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else
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cla_name_help( ostr, id.m_tag, "" );
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bool optional_value_ = false;
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if( p_has_optional_value ) {
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optional_value_ = true;
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ostr << '[';
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}
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if( id.m_value_separator.empty() )
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ostr << ' ';
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else {
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ostr << id.m_value_separator;
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}
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value_help( ostr );
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if( optional_value_ )
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ostr << ']';
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ostr << '\n';
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}
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if( !p_env_var.empty() )
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ostr << " Environment variable: " << p_env_var << '\n';
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}
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virtual void help( std::ostream& ostr, cstring negation_prefix_ )
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{
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usage( ostr, negation_prefix_ );
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if( !p_help.empty() )
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ostr << '\n' << p_help << '\n';
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}
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protected:
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void add_cla_id_impl( cstring prefix,
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cstring tag,
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cstring value_separator,
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bool negatable,
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bool validate_value_separator )
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{
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BOOST_TEST_I_ASSRT( !tag.is_empty(),
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invalid_cla_id() << "Parameter can't have an empty name." );
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BOOST_TEST_I_ASSRT( !prefix.is_empty(),
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invalid_cla_id() << "Parameter " << tag
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<< " can't have an empty prefix." );
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BOOST_TEST_I_ASSRT( !value_separator.is_empty(),
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invalid_cla_id() << "Parameter " << tag
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<< " can't have an empty value separator." );
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// We trim value separator from all the spaces, so token end will indicate separator
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value_separator.trim();
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BOOST_TEST_I_ASSRT( !validate_value_separator || !value_separator.is_empty() || !p_has_optional_value,
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invalid_cla_id() << "Parameter " << tag
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<< " with optional value attribute can't use space as value separator." );
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m_cla_ids.push_back( parameter_cla_id( prefix, tag, value_separator, negatable ) );
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}
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private:
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/// interface for usage/help customization
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virtual void cla_name_help( std::ostream& ostr, cstring cla_tag, cstring /* negation_prefix_ */) const
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{
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ostr << cla_tag;
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}
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virtual void value_help( std::ostream& ostr ) const
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{
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if( p_value_hint.empty() )
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ostr << "<value>";
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else
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ostr << p_value_hint;
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}
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// Data members
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param_cla_ids m_cla_ids;
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};
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// ************************************************************************** //
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// ************** runtime::parameter ************** //
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// ************************************************************************** //
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enum args_amount {
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OPTIONAL_PARAM, // 0-1
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REQUIRED_PARAM, // exactly 1
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REPEATABLE_PARAM // 0-N
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};
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//____________________________________________________________________________//
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template<typename ValueType, args_amount a = runtime::OPTIONAL_PARAM, bool is_enum = false>
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class parameter : public basic_param {
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public:
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/// Constructor with modifiers
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#ifndef BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
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template<typename Modifiers=nfp::no_params_type>
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parameter( cstring name, Modifiers const& m = nfp::no_params )
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#else
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template<typename Modifiers>
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parameter( cstring name, Modifiers const& m )
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#endif
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: basic_param( name, a != runtime::REQUIRED_PARAM, a == runtime::REPEATABLE_PARAM, m )
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, m_arg_factory( m )
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{
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BOOST_TEST_I_ASSRT( !m.has( default_value ) || a == runtime::OPTIONAL_PARAM,
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invalid_param_spec() << "Parameter " << name
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<< " is not optional and can't have default_value." );
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BOOST_TEST_I_ASSRT( !m.has( optional_value ) || !this->p_repeatable,
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invalid_param_spec() << "Parameter " << name
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<< " is repeatable and can't have optional_value." );
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}
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private:
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virtual basic_param_ptr clone() const
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{
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return basic_param_ptr( new parameter( *this ) );
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}
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virtual void produce_argument( cstring token, bool , arguments_store& store ) const
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{
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m_arg_factory.produce_argument( token, this->p_name, store );
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}
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virtual void produce_default( arguments_store& store ) const
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{
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if( !this->p_has_default_value )
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return;
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m_arg_factory.produce_default( this->p_name, store );
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}
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// Data members
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typedef argument_factory<ValueType, is_enum, a == runtime::REPEATABLE_PARAM> factory_t;
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factory_t m_arg_factory;
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};
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//____________________________________________________________________________//
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class option : public basic_param {
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public:
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/// Constructor with modifiers
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#ifndef BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
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template<typename Modifiers=nfp::no_params_type>
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option( cstring name, Modifiers const& m = nfp::no_params )
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#else
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template<typename Modifiers>
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option( cstring name, Modifiers const& m )
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#endif
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: basic_param( name, true, false, nfp::opt_append( nfp::opt_append( m, optional_value = true), default_value = false) )
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, m_arg_factory( nfp::opt_append( nfp::opt_append( m, optional_value = true), default_value = false) )
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{
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}
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void add_cla_id( cstring prefix, cstring tag, cstring value_separator, bool negatable = false )
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{
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add_cla_id_impl( prefix, tag, value_separator, negatable, false );
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}
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private:
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virtual basic_param_ptr clone() const
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{
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return basic_param_ptr( new option( *this ) );
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}
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virtual void produce_argument( cstring token, bool negative_form, arguments_store& store ) const
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{
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if( token.empty() )
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store.set( p_name, !negative_form );
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else {
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BOOST_TEST_I_ASSRT( !negative_form,
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format_error( p_name ) << "Can't set value to negative form of the argument." );
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m_arg_factory.produce_argument( token, p_name, store );
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}
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}
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virtual void produce_default( arguments_store& store ) const
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{
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m_arg_factory.produce_default( p_name, store );
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}
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virtual void cla_name_help( std::ostream& ostr, cstring cla_tag, cstring negation_prefix_ ) const
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{
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if( negation_prefix_.is_empty() )
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ostr << cla_tag;
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else
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ostr << '[' << negation_prefix_ << ']' << cla_tag;
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}
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virtual void value_help( std::ostream& ostr ) const
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{
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if( p_value_hint.empty() )
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ostr << "<boolean value>";
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else
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ostr << p_value_hint;
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}
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// Data members
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typedef argument_factory<bool, false, false> factory_t;
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factory_t m_arg_factory;
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};
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//____________________________________________________________________________//
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template<typename EnumType, args_amount a = runtime::OPTIONAL_PARAM>
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class enum_parameter : public parameter<EnumType, a, true> {
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typedef parameter<EnumType, a, true> base;
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public:
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/// Constructor with modifiers
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#ifndef BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
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template<typename Modifiers=nfp::no_params_type>
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enum_parameter( cstring name, Modifiers const& m = nfp::no_params )
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#else
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template<typename Modifiers>
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enum_parameter( cstring name, Modifiers const& m )
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#endif
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: base( name, m )
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{
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#ifdef BOOST_TEST_CLA_NEW_API
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auto const& values = m[enum_values<EnumType>::value];
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auto it = values.begin();
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#else
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std::vector<std::pair<cstring, EnumType> > const& values = m[enum_values<EnumType>::value];
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typename std::vector<std::pair<cstring, EnumType> >::const_iterator it = values.begin();
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#endif
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while( it != values.end() ) {
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m_valid_names.push_back( it->first );
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++it;
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}
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}
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private:
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virtual basic_param_ptr clone() const
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{
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return basic_param_ptr( new enum_parameter( *this ) );
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}
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virtual void value_help( std::ostream& ostr ) const
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{
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if( this->p_value_hint.empty() ) {
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ostr << "<";
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bool first = true;
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BOOST_TEST_FOREACH( cstring, name, m_valid_names ) {
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if( first )
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first = false;
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else
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ostr << '|';
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ostr << name;
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}
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ostr << ">";
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}
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else
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ostr << this->p_value_hint;
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}
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// Data members
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std::vector<cstring> m_valid_names;
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};
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// ************************************************************************** //
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// ************** runtime::parameters_store ************** //
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// ************************************************************************** //
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class parameters_store {
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struct lg_compare {
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bool operator()( cstring lh, cstring rh ) const
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{
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return std::lexicographical_compare(lh.begin(), lh.end(),
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rh.begin(), rh.end());
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}
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};
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public:
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typedef std::map<cstring, basic_param_ptr, lg_compare> storage_type;
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/// Adds parameter into the persistent store
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void add( basic_param const& in )
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{
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basic_param_ptr p = in.clone();
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BOOST_TEST_I_ASSRT( m_parameters.insert( std::make_pair( cstring(p->p_name), p ) ).second,
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duplicate_param() << "Parameter " << p->p_name << " is duplicate." );
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}
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/// Returns true if there is no parameters registered
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bool is_empty() const { return m_parameters.empty(); }
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/// Returns map of all the registered parameter
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storage_type const& all() const { return m_parameters; }
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/// Returns true if parameter with psecified name is registered
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bool has( cstring name ) const
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{
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return m_parameters.find( name ) != m_parameters.end();
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}
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/// Returns map of all the registered parameter
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basic_param_ptr get( cstring name ) const
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{
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storage_type::const_iterator const& found = m_parameters.find( name );
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BOOST_TEST_I_ASSRT( found != m_parameters.end(),
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unknown_param() << "Parameter " << name << " is unknown." );
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return found->second;
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}
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private:
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// Data members
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storage_type m_parameters;
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};
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} // namespace runtime
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} // namespace boost
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#include <boost/test/detail/enable_warnings.hpp>
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#endif // BOOST_TEST_UTILS_RUNTIME_PARAMETER_HPP
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