yast2-core
Public Member Functions | Private Member Functions | Private Attributes | List of all members
YSExpression Class Reference

#include <YStatement.h>

Inheritance diagram for YSExpression:
YStatement YCode Rep

Public Member Functions

 YSExpression (YCodePtr expr, int line=0)
 
 YSExpression (bytecodeistream &str)
 
 ~YSExpression ()
 
virtual ykind kind () const
 
string toString () const
 
std::ostream & toStream (std::ostream &str) const
 
std::ostream & toXml (std::ostream &str, int indent) const
 
YCPValue evaluate (bool cse=false)
 
constTypePtr type () const
 
- Public Member Functions inherited from YStatement
 YStatement (int line=0)
 
 YStatement (bytecodeistream &str)
 
 ~YStatement ()
 
virtual bool isStatement () const
 
int line () const
 
- Public Member Functions inherited from YCode
 YCode ()
 
virtual ~YCode ()
 
std::string commentToXml () const
 
std::ostream & commentToXml (std::ostream &str) const
 
virtual bool isConstant () const
 
bool isError () const
 
virtual bool isBlock () const
 
virtual bool isReferenceable () const
 
void setCommentBefore (const char *comment)
 
void setCommentAfter (const char *comment)
 
- Public Member Functions inherited from Rep
 Rep ()
 
 Rep (const Rep &)
 
Repoperator= (const Rep &)
 
virtual ~Rep ()
 
void ref () const
 
void unref () const
 
unsigned refCount () const
 
virtual const char * repName () const
 
virtual std::ostream & dumpOn (std::ostream &str) const
 

Private Member Functions

 REP_BODY (YSExpression)
 

Private Attributes

YCodePtr m_expr
 

Additional Inherited Members

- Public Types inherited from YCode
enum  ykind {
  yxError = 0, ycVoid, ycBoolean, ycInteger,
  ycFloat, ycString, ycByteblock, ycPath,
  ycSymbol, ycList, ycMap, ycTerm,
  ycEntry, ycConstant, ycLocale, ycFunction,
  yePropagate, yeUnary, yeBinary, yeTriple,
  yeCompare, yeLocale, yeList, yeMap,
  yeTerm, yeIs, yeBracket, yeBlock,
  yeReturn, yeVariable, yeBuiltin, yeFunction,
  yeReference, yeFunctionPointer, yeExpression, ysTypedef,
  ysVariable, ysFunction, ysAssign, ysBracket,
  ysIf, ysWhile, ysDo, ysRepeat,
  ysExpression, ysReturn, ysBreak, ysContinue,
  ysTextdomain, ysInclude, ysFilename, ysImport,
  ysBlock, ysSwitch, ysStatement, yiBreakpoint
}
 
- Static Public Member Functions inherited from YCode
static string toString (ykind kind)
 
- Static Public Member Functions inherited from Rep
static void ref (const Rep *obj_r)
 
static void unref (const Rep *obj_r)
 
- Protected Member Functions inherited from Rep
virtual void ref_to (unsigned) const
 
virtual void unref_to (unsigned) const
 
- Protected Attributes inherited from YCode
const char * comment_before
 
const char * comment_after
 

Detailed Description

an expression, i.e. a function call

Constructor & Destructor Documentation

YSExpression::YSExpression ( YCodePtr  expr,
int  line = 0 
)
YSExpression::YSExpression ( bytecodeistream str)

References m_expr, and Bytecode::readCode().

YSExpression::~YSExpression ( )

Member Function Documentation

YCPValue YSExpression::evaluate ( bool  cse = false)
virtual

Execute YCP code to get the resulting YCPValue. Every inherited class of YCode should reimplement this method.

Returns
YCPValue after executing the code
Parameters
cseshould the evaluation be done for parse time evaluation (i.e. constant subexpression elimination)

Reimplemented from YStatement.

References YStatement::line(), m_expr, toString(), and y2debug.

virtual ykind YSExpression::kind ( ) const
inlinevirtual

Kind of this YCode. This method must be reimplemented in the inherited classes.

Returns
the YCode kind

Implements YCode.

References YStatement::evaluate(), str, YStatement::toStream(), YStatement::toString(), YStatement::toXml(), and YCode::ysExpression.

YSExpression::REP_BODY ( YSExpression  )
private
std::ostream & YSExpression::toStream ( std::ostream &  str) const
virtual

Write YCP code to a byte stream (bytecode implementation). Every class inheriting from YCode must reimplement this method.

Parameters
strbyte stream to store into
Returns
byte stream for chaining writing bytecode (str)

Reimplemented from YStatement.

References m_expr, and YStatement::toStream().

string YSExpression::toString ( void  ) const
virtual

Return ASCII represtation of this YCP code.

Returns
ASCII string representation

Reimplemented from YStatement.

References m_expr.

Referenced by evaluate().

std::ostream & YSExpression::toXml ( std::ostream &  str,
int  indent 
) const
virtual

Write YCP code as XML representation. Every class inheriting from YCode must reimplement this method.

Parameters
strstring stream to store into
indendindentation level for pretty print
Returns
string stream for chaining writing XML (str)

Reimplemented from YStatement.

References YCode::comment_after, YCode::comment_before, m_expr, str, YCode::yeFunction, and YCode::yeFunctionPointer.

constTypePtr YSExpression::type ( ) const
inlinevirtual

Return type of this YCP code (interesting mostly for function calls).

Returns
type of the value to be returned after calling evaluate

Reimplemented from YStatement.

References Type::Void.

Member Data Documentation

YCodePtr YSExpression::m_expr
private

The documentation for this class was generated from the following files:

Generated on a sunny day for yast2-core by doxygen 1.8.11