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MathExpression Class Reference
Common_util

The base expression class. More...

#include <mathscript.h>

Classes

struct  PropertyRef
 

Public Member Functions

virtual double Evaluate (MathEnvironment *env) const
 
size_t GetOpcode () const
 
void SetOpcode (size_t newOpcode)
 
virtual ~MathExpression ()
 

Static Public Member Functions

static MathExpression * Create (const char *expression, const char *name="")
 Empty destructor. More...
 

Protected Types

enum  {
  MATH_NONE = 0, MATH_COND = 1, MATH_EXP = 2, MATH_LOOP = 4,
  MATH_ASSIGN = 8, MATH_BREAK = 16, MATH_WHILE = MATH_COND | MATH_EXP | MATH_LOOP, MATH_IF = MATH_COND | MATH_EXP,
  MATH_ELSE = MATH_COND, MATH_DO = MATH_EXP | MATH_LOOP
}
 

Protected Member Functions

 MathExpression ()
 
bool Parse (const char *expression)
 

Protected Attributes

FunctionParser fp
 
const char * name
 
size_t opcode
 
csSet< PropertyRef > propertyRefs
 properties that have to be resolved prior to evaluation More...
 
csSet< csString > requiredObjs
 a subset of requiredVars which are known to be objects; for type checking More...
 
csSet< csString > requiredVars
 variables required to execute this expression More...
 

Detailed Description

The base expression class.

It is able to perform basic operations (e.g. "atan(a,b)") and also holds additional information about the type of the operator this expression represents. All other possible statements must derive from this.

Definition at line 330 of file mathscript.h.

Member Enumeration Documentation

anonymous enum
protected
Enumerator
MATH_NONE 
MATH_COND 
MATH_EXP 
MATH_LOOP 
MATH_ASSIGN 
MATH_BREAK 
MATH_WHILE 
MATH_IF 
MATH_ELSE 
MATH_DO 

Definition at line 333 of file mathscript.h.

Constructor & Destructor Documentation

MathExpression::MathExpression ( )
protected
virtual MathExpression::~MathExpression ( )
inlinevirtual

Definition at line 380 of file mathscript.h.

Member Function Documentation

static MathExpression* MathExpression::Create ( const char *  expression,
const char *  name = "" 
)
static

Empty destructor.

virtual double MathExpression::Evaluate ( MathEnvironment *  env) const
virtual

Reimplemented in MathScript, EmptyMathStatement, and MathStatement.

size_t MathExpression::GetOpcode ( ) const
inline

Definition at line 385 of file mathscript.h.

bool MathExpression::Parse ( const char *  expression)
protected
void MathExpression::SetOpcode ( size_t  newOpcode)
inline

Definition at line 390 of file mathscript.h.

Member Data Documentation

FunctionParser MathExpression::fp
mutableprotected

Definition at line 375 of file mathscript.h.

const char* MathExpression::name
protected

Definition at line 377 of file mathscript.h.

size_t MathExpression::opcode
protected

Definition at line 348 of file mathscript.h.

csSet<PropertyRef> MathExpression::propertyRefs
protected

properties that have to be resolved prior to evaluation

Definition at line 374 of file mathscript.h.

csSet<csString> MathExpression::requiredObjs
protected

a subset of requiredVars which are known to be objects; for type checking

Definition at line 373 of file mathscript.h.

csSet<csString> MathExpression::requiredVars
protected

variables required to execute this expression

Definition at line 372 of file mathscript.h.

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