CallReferenceNode.h
/* -*- mode: c++; indent-tabs-mode: nil -*- */
/*
CallReferenceNode.h
Qore Programming Language
Copyright (C) 2003 - 2015 David Nichols
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
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and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
Note that the Qore library is released under a choice of three open-source
licenses: MIT (as above), LGPL 2+, or GPL 2+; see README-LICENSE for more
information.
*/
#ifndef _QORE_FUNCTIONREFERENCENODE_H
#define _QORE_FUNCTIONREFERENCENODE_H
class AbstractCallReferenceNode : public AbstractQoreNode {
private:
DLLLOCAL virtual AbstractQoreNode* realCopy() const;
DLLLOCAL virtual bool is_equal_soft(const AbstractQoreNode* v, ExceptionSink* xsink) const;
DLLLOCAL virtual bool is_equal_hard(const AbstractQoreNode* v, ExceptionSink* xsink) const;
protected:
DLLLOCAL virtual AbstractQoreNode* evalImpl(ExceptionSink* xsink) const;
DLLLOCAL virtual AbstractQoreNode* evalImpl(bool& needs_deref, ExceptionSink* xsink) const;
DLLLOCAL virtual int64 bigIntEvalImpl(ExceptionSink* xsink) const;
DLLLOCAL virtual int integerEvalImpl(ExceptionSink* xsink) const;
DLLLOCAL virtual bool boolEvalImpl(ExceptionSink* xsink) const;
DLLLOCAL virtual double floatEvalImpl(ExceptionSink* xsink) const;
DLLLOCAL AbstractCallReferenceNode(bool n_needs_eval, bool n_there_can_be_only_one, qore_type_t n_type = NT_FUNCREF);
public:
DLLLOCAL AbstractCallReferenceNode(bool n_needs_eval = false, qore_type_t n_type = NT_FUNCREF);
DLLLOCAL virtual ~AbstractCallReferenceNode();
DLLEXPORT virtual bool getAsBoolImpl() const;
DLLLOCAL virtual int getAsString(QoreString& str, int foff, ExceptionSink* xsink) const;
DLLLOCAL virtual QoreString* getAsString(bool& del, int foff, ExceptionSink* xsink) const;
DLLLOCAL virtual const char* getTypeName() const;
DLLLOCAL static const char* getStaticTypeName() {
return "call reference";
}
};
class QoreFunction;
class ResolvedCallReferenceNode : public AbstractCallReferenceNode {
public:
DLLLOCAL ResolvedCallReferenceNode(bool n_needs_eval = false, qore_type_t n_type = NT_FUNCREF);
DLLLOCAL virtual QoreValue execValue(const QoreListNode* args, ExceptionSink* xsink) const = 0;
DLLLOCAL virtual QoreProgram* getProgram() const;
DLLLOCAL virtual QoreFunction* getFunction() = 0;
DLLLOCAL ResolvedCallReferenceNode* refRefSelf() const {
ref();
return const_cast<ResolvedCallReferenceNode*>(this);
}
};
#endif
ResolvedCallReferenceNode::getProgram
virtual DLLLOCAL QoreProgram * getProgram() const
returns a pointer to the QoreProgram object associated with this reference (can be 0) ...
AbstractCallReferenceNode::getAsString
virtual DLLLOCAL int getAsString(QoreString &str, int foff, ExceptionSink *xsink) const
concatenate the verbose string representation of the value to an existing QoreString ...
AbstractCallReferenceNode::getTypeName
virtual DLLLOCAL const char * getTypeName() const
returns the type name as a c string
AbstractCallReferenceNode::evalImpl
virtual DLLLOCAL AbstractQoreNode * evalImpl(ExceptionSink *xsink) const
this function should never be called for function references; this function should never be called di...
AbstractQoreNode
The base class for all value and parse types in Qore expression trees.
Definition: AbstractQoreNode.h:55
AbstractCallReferenceNode::AbstractCallReferenceNode
DLLLOCAL AbstractCallReferenceNode(bool n_needs_eval, bool n_there_can_be_only_one, qore_type_t n_type=NT_FUNCREF)
protected constructor for subclasses that are not reference-counted
NT_FUNCREF
const qore_type_t NT_FUNCREF
type value for AbstractCallReferenceNode
Definition: node_types.h:71
AbstractCallReferenceNode::getAsBoolImpl
virtual DLLEXPORT bool getAsBoolImpl() const
returns false unless perl-boolean-evaluation is enabled, in which case it returns true ...
AbstractCallReferenceNode
base class for call references, reference-counted, dynamically allocated only
Definition: CallReferenceNode.h:39
AbstractCallReferenceNode::integerEvalImpl
virtual DLLLOCAL int integerEvalImpl(ExceptionSink *xsink) const
this function should never be called for function references; this function should never be called di...
QoreString
Qore's string type supported by the QoreEncoding class.
Definition: QoreString.h:82
QoreListNode
This is the list container type in Qore, dynamically allocated only, reference counted.
Definition: QoreListNode.h:52
ResolvedCallReferenceNode::ResolvedCallReferenceNode
DLLLOCAL ResolvedCallReferenceNode(bool n_needs_eval=false, qore_type_t n_type=NT_FUNCREF)
constructor is not exported outside the library
QoreProgram
supports parsing and executing Qore-language code, reference counted, dynamically-allocated only ...
Definition: QoreProgram.h:103
AbstractQoreNode::ref
DLLEXPORT void ref() const
increments the reference count
AbstractCallReferenceNode::floatEvalImpl
virtual DLLLOCAL double floatEvalImpl(ExceptionSink *xsink) const
this function should never be called for function references; this function should never be called di...
ExceptionSink
container for holding Qore-language exception information and also for registering a "thread_exit" ca...
Definition: ExceptionSink.h:43
int64
long long int64
64bit integer type, cannot use int64_t here since it breaks the API on some 64-bit systems due to equ...
Definition: common.h:228
ResolvedCallReferenceNode
base class for resolved call references
Definition: CallReferenceNode.h:130
AbstractCallReferenceNode::boolEvalImpl
virtual DLLLOCAL bool boolEvalImpl(ExceptionSink *xsink) const
this function should never be called for function references; this function should never be called di...
qore_type_t
int16_t qore_type_t
used to identify unique Qore data and parse types (descendents of AbstractQoreNode) ...
Definition: common.h:68
AbstractCallReferenceNode::bigIntEvalImpl
virtual DLLLOCAL int64 bigIntEvalImpl(ExceptionSink *xsink) const
this function should never be called for function references; this function should never be called di...
ResolvedCallReferenceNode::execValue
virtual DLLLOCAL QoreValue execValue(const QoreListNode *args, ExceptionSink *xsink) const =0
pure virtual function for executing the function reference