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New version of Clara that fixes operator= issue with ref member (#265)

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This commit is contained in:
Phil Nash
2014-03-24 18:15:04 +00:00
parent 472dc2a61f
commit af8cd98f20
4 changed files with 103 additions and 77 deletions
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85
include/external/clara.h vendored
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@@ -278,6 +278,10 @@ namespace Clara {
functionObj->setFlag( config );
}
bool takesArg() const { return functionObj->takesArg(); }
bool isSet() const {
return functionObj != NULL;
}
private:
IArgFunction<ConfigT>* functionObj;
};
@@ -426,11 +430,16 @@ namespace Clara {
Detail::BoundArgFunction<ConfigT> boundField;
std::string description;
std::string detail;
std::string placeholder; // Only value if boundField takes an arg
bool takesArg() const {
return !placeholder.empty();
}
void validate() const {
if( !boundField.isSet() )
throw std::logic_error( "option not bound" );
}
};
struct OptionArgProperties {
std::vector<std::string> shortNames;
@@ -442,7 +451,6 @@ namespace Clara {
bool hasLongName( std::string const& _longName ) const {
return _longName == longName;
}
};
struct PositionalArgProperties {
PositionalArgProperties() : position( -1 ) {}
@@ -462,9 +470,6 @@ namespace Clara {
using CommonArgProperties<ConfigT>::placeholder; // !TBD
bool isAnyPositional() const {
return position == -1 && shortNames.empty() && longName.empty();
}
std::string dbgName() const {
if( !longName.empty() )
return "--" + longName;
@@ -526,73 +531,72 @@ namespace Clara {
class ArgBuilder {
public:
ArgBuilder( Arg& arg ) : m_arg( arg ) {}
ArgBuilder( Arg* arg ) : m_arg( arg ) {}
// Bind a non-boolean data member (requires placeholder string)
template<typename C, typename M>
void bind( M C::* field, std::string const& placeholder ) {
m_arg.boundField = new Detail::BoundDataMember<C,M>( field );
m_arg.placeholder = placeholder;
m_arg->boundField = new Detail::BoundDataMember<C,M>( field );
m_arg->placeholder = placeholder;
}
// Bind a boolean data member (no placeholder required)
template<typename C>
void bind( bool C::* field ) {
m_arg.boundField = new Detail::BoundDataMember<C,bool>( field );
m_arg->boundField = new Detail::BoundDataMember<C,bool>( field );
}
// Bind a method taking a single, non-boolean argument (requires a placeholder string)
template<typename C, typename M>
void bind( void (C::*_unaryMethod)( M ), std::string const& placeholder ) {
m_arg.boundField = new Detail::BoundUnaryMethod<C,M>( _unaryMethod );
m_arg.placeholder = placeholder;
void bind( void (C::* unaryMethod)( M ), std::string const& placeholder ) {
m_arg->boundField = new Detail::BoundUnaryMethod<C,M>( unaryMethod );
m_arg->placeholder = placeholder;
}
// Bind a method taking a single, boolean argument (no placeholder string required)
template<typename C>
void bind( void (C::*_unaryMethod)( bool ) ) {
m_arg.boundField = new Detail::BoundUnaryMethod<C,bool>( _unaryMethod );
void bind( void (C::* unaryMethod)( bool ) ) {
m_arg->boundField = new Detail::BoundUnaryMethod<C,bool>( unaryMethod );
}
// Bind a method that takes no arguments (will be called if opt is present)
template<typename C>
void bind( void (C::*_nullaryMethod)() ) {
m_arg.boundField = new Detail::BoundNullaryMethod<C>( _nullaryMethod );
void bind( void (C::* nullaryMethod)() ) {
m_arg->boundField = new Detail::BoundNullaryMethod<C>( nullaryMethod );
}
// Bind a free function taking a single argument - the object to operate on (no placeholder string required)
template<typename C>
void bind( void (*_unaryFunction)( C& ) ) {
m_arg.boundField = new Detail::BoundUnaryFunction<C>( _unaryFunction );
void bind( void (* unaryFunction)( C& ) ) {
m_arg->boundField = new Detail::BoundUnaryFunction<C>( unaryFunction );
}
// Bind a free function taking a single argument - the object to operate on (requires a placeholder string)
template<typename C, typename T>
void bind( void (*_binaryFunction)( C&, T ), std::string const& placeholder ) {
m_arg.boundField = new Detail::BoundBinaryFunction<C, T>( _binaryFunction );
m_arg.placeholder = placeholder;
void bind( void (* binaryFunction)( C&, T ), std::string const& placeholder ) {
m_arg->boundField = new Detail::BoundBinaryFunction<C, T>( binaryFunction );
m_arg->placeholder = placeholder;
}
ArgBuilder& describe( std::string const& description ) {
m_arg.description = description;
m_arg->description = description;
return *this;
}
ArgBuilder& detail( std::string const& ) {
// m_arg.description = description;
// !TBD
ArgBuilder& detail( std::string const& detail ) {
m_arg->detail = detail;
return *this;
}
protected:
Arg& m_arg;
Arg* m_arg;
};
class OptBuilder : public ArgBuilder {
public:
OptBuilder( Arg& arg ) : ArgBuilder( arg ) {}
OptBuilder( Arg* arg ) : ArgBuilder( arg ) {}
OptBuilder( OptBuilder& other ) : ArgBuilder( other ) {}
OptBuilder& operator[]( std::string const& optName ) {
addOptName( ArgBuilder::m_arg, optName );
addOptName( *ArgBuilder::m_arg, optName );
return *this;
}
};
@@ -624,7 +628,7 @@ namespace Clara {
OptBuilder operator[]( std::string const& optName ) {
m_options.push_back( Arg() );
addOptName( m_options.back(), optName );
OptBuilder builder( m_options.back() );
OptBuilder builder( &m_options.back() );
return builder;
}
@@ -633,7 +637,7 @@ namespace Clara {
if( position > m_highestSpecifiedArgPosition )
m_highestSpecifiedArgPosition = position;
setPositionalArg( m_positionalArgs[position], position );
ArgBuilder builder( m_positionalArgs[position] );
ArgBuilder builder( &m_positionalArgs[position] );
return builder;
}
@@ -642,7 +646,7 @@ namespace Clara {
if( m_floatingArg.get() )
throw std::logic_error( "Only one unpositional argument can be added" );
m_floatingArg = ArgAutoPtr( new Arg() );
ArgBuilder builder( *m_floatingArg );
ArgBuilder builder( m_floatingArg.get() );
return builder;
}
@@ -665,9 +669,8 @@ namespace Clara {
Detail::Text usage( it->commands(), Detail::TextAttributes()
.setWidth( maxWidth+indent )
.setIndent( indent ) );
// !TBD handle longer usage strings
Detail::Text desc( it->description, Detail::TextAttributes()
.setWidth( width - maxWidth -3 ) );
.setWidth( width - maxWidth - 3 ) );
for( std::size_t i = 0; i < (std::max)( usage.size(), desc.size() ); ++i ) {
std::string usageCol = i < usage.size() ? usage[i] : "";
@@ -712,6 +715,7 @@ namespace Clara {
}
void usage( std::ostream& os, std::string const& procName ) const {
validate();
os << "usage:\n " << procName << " ";
argSynopsis( os );
if( !m_options.empty() ) {
@@ -726,7 +730,7 @@ namespace Clara {
return oss.str();
}
ConfigT parseInto( int argc, char const * const * argv ) const {
ConfigT parse( int argc, char const * const * argv ) const {
ConfigT config;
parseInto( argc, argv, config );
return config;
@@ -745,9 +749,7 @@ namespace Clara {
}
std::vector<Parser::Token> populate( std::vector<Parser::Token> const& tokens, ConfigT& config ) const {
if( m_options.empty() && m_positionalArgs.empty() )
throw std::logic_error( "No options or arguments specified" );
validate();
std::vector<Parser::Token> unusedTokens = populateOptions( tokens, config );
unusedTokens = populateFixedArgs( unusedTokens, config );
unusedTokens = populateFloatingArgs( unusedTokens, config );
@@ -831,6 +833,17 @@ namespace Clara {
return unusedTokens;
}
void validate() const
{
if( m_options.empty() && m_positionalArgs.empty() && !m_floatingArg.get() )
throw std::logic_error( "No options or arguments specified" );
for( typename std::vector<Arg>::const_iterator it = m_options.begin(),
itEnd = m_options.end();
it != itEnd; ++it )
it->validate();
}
private:
Detail::BoundArgFunction<ConfigT> m_boundProcessName;
std::vector<Arg> m_options;