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cwObject.h/cpp,cwObjectTemplate.h : Initial implementation of newObject(). Added flags to find().

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This commit is contained in:
kevin.larke 2020-03-31 12:51:17 -04:00
parent 98c9150809
commit 10b2a36970
3 changed files with 135 additions and 35 deletions
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66
cwObject.cpp
View File

@ -89,7 +89,14 @@ namespace cw
{ return cwLogError(kInvalidArgRC, "There is no conversion from '%s' to '%s'.", _objTypeIdToLabel(tid), o->type->label); }
rc_t _objTypeValueFromString( const object_t* o, unsigned tid, void* dst )
{ return _objTypeValueFromNonValue(o,tid,dst); }
{
if( tid == kStringTId )
{
*(char**)dst = o->u.str;
return kOkRC;
}
return _objTypeValueFromNonValue(o,tid,dst);
}
rc_t _objTypeValueFromVect( const object_t* o, unsigned tid, void* dst )
{ return _objTypeValueFromNonValue(o,tid,dst); }
@ -349,6 +356,8 @@ namespace cw
if( newNode == nullptr )
return nullptr;
if( parent != nullptr )
{
object_t* child = parent->u.children;
if( parent->u.children == nullptr )
@ -360,6 +369,7 @@ namespace cw
child->sibling = newNode;
}
}
newNode->parent = parent;
return newNode;
@ -450,6 +460,7 @@ cw::rc_t cw::object_t::value( uint64_t& v ) const { return type->value(this,kUIn
cw::rc_t cw::object_t::value( float& v ) const { return type->value(this,kFloatTId,&v); }
cw::rc_t cw::object_t::value( double& v ) const { return type->value(this,kDoubleTId,&v); }
cw::rc_t cw::object_t::value( char*& v ) const { return type->value(this,kStringTId,&v); }
cw::rc_t cw::object_t::value( const char*& v ) const { return type->value(this,kStringTId,&v); }
const char* cw::object_t::pair_label() const
{
@ -476,7 +487,7 @@ struct cw::object_str* cw::object_t::pair_value()
}
const struct cw::object_str* cw::object_t::find( const char* label, bool recurseFl ) const
const struct cw::object_str* cw::object_t::find( const char* label, unsigned flags ) const
{
if( is_container() )
{
@ -486,7 +497,7 @@ const struct cw::object_str* cw::object_t::find( const char* label, bool recurse
return o->pair_value();
const object_t* ch;
if( recurseFl )
if( cwIsNotFlag(flags,kNoRecurseFl) )
if((ch = o->find(label)) != nullptr )
return ch;
}
@ -494,9 +505,9 @@ const struct cw::object_str* cw::object_t::find( const char* label, bool recurse
return nullptr;
}
struct cw::object_str* cw::object_t::find( const char* label, bool recurseFl )
struct cw::object_str* cw::object_t::find( const char* label, unsigned flags )
{
return const_cast<struct object_str*>(((const object_t*)this)->find(label,recurseFl));
return const_cast<struct object_str*>(((const object_t*)this)->find(label,flags));
}
const struct cw::object_str* cw::object_t::list_ele( unsigned idx ) const
@ -530,7 +541,41 @@ void cw::object_t::print(const print_ctx_t* c) const
type->print(this,ctx);
}
cw::object_t* cw::newObject( std::uint8_t v, object_t* parent)
{ return _objCreateValueNode<uint8_t>( parent, v ); }
cw::object_t* cw::newObject( std::int8_t v, object_t* parent)
{ return _objCreateValueNode<int8_t>( parent, v ); }
cw::object_t* cw::newObject( std::uint16_t v, object_t* parent)
{ return _objCreateValueNode<uint16_t>( parent, v ); }
cw::object_t* cw::newObject( std::int16_t v, object_t* parent)
{ return _objCreateValueNode<int16_t>( parent, v ); }
cw::object_t* cw::newObject( std::uint32_t v, object_t* parent)
{ return _objCreateValueNode<uint32_t>( parent, v ); }
cw::object_t* cw::newObject( std::int32_t v, object_t* parent)
{ return _objCreateValueNode<int32_t>( parent, v ); }
cw::object_t* cw::newObject( std::uint64_t v, object_t* parent)
{ return _objCreateValueNode<uint64_t>( parent, v ); }
cw::object_t* cw::newObject( std::int64_t v, object_t* parent)
{ return _objCreateValueNode<uint64_t>( parent, v ); }
cw::object_t* cw::newObject( bool v, object_t* parent)
{ return _objCreateValueNode<bool>( parent, v ); }
cw::object_t* cw::newObject( float v, object_t* parent)
{ return _objCreateValueNode<float>( parent, v ); }
cw::object_t* cw::newObject( double v, object_t* parent)
{ return _objCreateValueNode<double>( parent, v ); }
cw::object_t* cw::newObject( const char* v, object_t* parent)
{ return _objCreateValueNode<const char*>( parent, v ); }
cw::rc_t cw::objectFromString( const char* s, object_t*& objRef )
{
@ -558,8 +603,6 @@ cw::rc_t cw::objectFromString( const char* s, object_t*& objRef )
while((lexId = lex::getNextToken(lexH)) != lex::kErrorLexTId && (lexId != lex::kEofLexTId) && (rc == kOkRC))
{
//printf("Lex:%s\n",lexIdToLabel(lexH,lexId));
switch( lexId )
{
case kLCurlyLexTId:
@ -650,6 +693,15 @@ cw::rc_t cw::objectFromString( const char* s, object_t*& objRef )
}
// if the root has only one child then make the child the root
if( root != nullptr && root->child_count() == 1 )
{
cnp = root->u.children;
cnp->unlink();
root->free();
root = cnp;
}
objRef = root;
errLabel:

41
cwObject.h
View File

@ -39,7 +39,13 @@ namespace cw
enum
{
kValueContainerFl = 0x01, // root,pair, or list are the only legal value containers
kContainerFl = 0x02
kContainerFl = 0x02,
};
enum
{
kNoRecurseFl = 0x01,
kOptionalFl = 0x02
};
struct object_str;
@ -120,6 +126,7 @@ namespace cw
rc_t value( float& v ) const;
rc_t value( double& v ) const;
rc_t value( char*& v ) const;
rc_t value( const char*& v ) const;
const char* pair_label() const;
@ -127,18 +134,28 @@ namespace cw
struct object_str* pair_value();
// Search for the pair label 'label'.
const struct object_str* find( const char* label, bool recurseFl=true ) const;
struct object_str* find( const char* label, bool recurseFl=true );
// Return a pointer to the pair value associated with a given pair label.
// Set flags to kNoRecurseFl to not recurse into the object in search of the label.
const struct object_str* find( const char* label, unsigned flags=0 ) const;
struct object_str* find( const char* label, unsigned flags=0 );
const struct object_str* list_ele( unsigned idx ) const;
struct object_str* list_ele( unsigned idx );
// Set flag 'kNoRecurseFl' to no recurse into the object in search of the value.
// Set flag 'kOptional' if the label is optional and may not exist.
template< typename T >
rc_t get( const char* label, T& v ) const
rc_t get( const char* label, T& v, unsigned flags=0 ) const
{
const struct object_str* o;
if((o = find(label)) == NULL )
if((o = find(label, flags)) == nullptr )
{
if( cwIsNotFlag(flags, kOptionalFl) )
return cwLogError(kInvalidIdRC,"The pair label '%s' could not be found.",cwStringNullGuard(label));
return kLabelNotFoundRC;
}
return o->value(v);
}
@ -159,8 +176,18 @@ namespace cw
} object_t;
object_t* newObject( std::uint8_t v, object_t* parent=nullptr);
object_t* newObject( std::int8_t v, object_t* parent=nullptr);
object_t* newObject( std::int16_t v, object_t* parent=nullptr);
object_t* newObject( std::uint16_t v, object_t* parent=nullptr);
object_t* newObject( std::int32_t v, object_t* parent=nullptr);
object_t* newObject( std::uint32_t v, object_t* parent=nullptr);
object_t* newObject( std::int64_t v, object_t* parent=nullptr);
object_t* newObject( std::uint64_t v, object_t* parent=nullptr);
object_t* newObject( bool v, object_t* parent=nullptr);
object_t* newObject( float v, object_t* parent=nullptr);
object_t* newObject( double v, object_t* parent=nullptr);
object_t* newObject( const char* v, object_t* parent=nullptr);
rc_t objectFromString( const char* s, object_t*& objRef );
rc_t objectFromFile( const char* fn, object_t*& objRef );

23
cwObjectTemplate.h
View File

@ -66,17 +66,38 @@ namespace cw
}
template< typename T >
object_t*_objCreateValueNode( object_t* obj, T value, const char* msg, unsigned flags=0 )
object_t*_objCreateValueNode( object_t* obj, T value, const char* msg=nullptr, unsigned flags=0 )
{
return NULL;
}
template<> object_t* _objCreateValueNode<uint8_t>( object_t* parent, uint8_t value, const char* msg, unsigned flags )
{ return _objAppendLeftMostNode( parent, _objSetLeafValue( _objAllocate(), value ) ); }
template<> object_t* _objCreateValueNode<int8_t>( object_t* parent, int8_t value, const char* msg, unsigned flags )
{ return _objAppendLeftMostNode( parent, _objSetLeafValue( _objAllocate(), value ) ); }
template<> object_t* _objCreateValueNode<uint16_t>( object_t* parent, uint16_t value, const char* msg, unsigned flags )
{ return _objAppendLeftMostNode( parent, _objSetLeafValue( _objAllocate(), value ) ); }
template<> object_t* _objCreateValueNode<int16_t>( object_t* parent, int16_t value, const char* msg, unsigned flags )
{ return _objAppendLeftMostNode( parent, _objSetLeafValue( _objAllocate(), value ) ); }
template<> object_t* _objCreateValueNode<uint32_t>( object_t* parent, uint32_t value, const char* msg, unsigned flags )
{ return _objAppendLeftMostNode( parent, _objSetLeafValue( _objAllocate(), value ) ); }
template<> object_t* _objCreateValueNode<int32_t>( object_t* parent, int32_t value, const char* msg, unsigned flags )
{ return _objAppendLeftMostNode( parent, _objSetLeafValue( _objAllocate(), value ) ); }
template<> object_t* _objCreateValueNode<uint64_t>( object_t* parent, uint64_t value, const char* msg, unsigned flags )
{ return _objAppendLeftMostNode( parent, _objSetLeafValue( _objAllocate(), value ) ); }
template<> object_t* _objCreateValueNode<int64_t>( object_t* parent, int64_t value, const char* msg, unsigned flags )
{ return _objAppendLeftMostNode( parent, _objSetLeafValue( _objAllocate(), value ) ); }
template<> object_t* _objCreateValueNode<float>( object_t* parent, float value, const char* msg, unsigned flags )
{ return _objAppendLeftMostNode( parent, _objSetLeafValue( _objAllocate(), value ) ); }
template<> object_t* _objCreateValueNode<double>( object_t* parent, double value, const char* msg, unsigned flags )
{ return _objAppendLeftMostNode( parent, _objSetLeafValue( _objAllocate(), value ) ); }