Class MathExpression.Token

java.lang.Object

com.github.gbenroscience.parser.MathExpression.Token

All Implemented Interfaces:

Savable, Serializable

Enclosing class:

MathExpression

public static final class MathExpression.Token
extends Object
implements Savable

Author:

GBENRO

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
int	arity
String	assignToName
static final char	CBRT_DEF
static final int	COMMA
int	frameIndex	The slot in the execution frame where this token's value lives.
static final int	FUNCTION
static final int	FUNCTION_HANDLE
static final int	FUNCTION_HANDLE_UNDEFINED
int	id
static final char	INVERSE_DEF
boolean	isAssignmentTarget
boolean	isPostfix
boolean	isRightAssoc
int	kind
static final int	LPAREN
Matrix	m
static final int	MATRIX
static final int	METHOD
String	name
static final int	NUMBER
char	opChar
static final int	OPERATOR
int	precedence
static final int	RPAREN
Variable	v
double	value
static final int	VARIABLE

Constructor Summary

Constructors

Constructor	Description
Token(char opChar, int precedence, boolean isRightAssoc, boolean isPostfix)
Token(double value)
Token(int kind)
Token(int kind, String name, int arity, int id, ErrorLog log)
Token(int kind, String name, int arity, int id, String assignToName, ErrorLog log)
Token(Matrix m)
Token(Variable v)	Constructor for Variables
Token(String fn, boolean defined)	Constructor for Function Handles.

Method Summary

Modifier and Type	Method	Description
MathExpression.Token	clone()
static String	getKind(int kind)
static int	getPrec(char op)
String[]	getRawArgs()
static boolean	isRightAssociative(char op)
boolean	isVariable()
String	toJsonString()
String	toString()

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.github.gbenroscience.interfaces.Savable

serialize

Field Details

CBRT_DEF

public static final char CBRT_DEF

See Also:

• Constant Field Values

INVERSE_DEF

public static final char INVERSE_DEF

See Also:

• Constant Field Values

NUMBER

public static final int NUMBER

See Also:

• Constant Field Values

OPERATOR

public static final int OPERATOR

See Also:

• Constant Field Values

FUNCTION

public static final int FUNCTION

See Also:

• Constant Field Values

METHOD

public static final int METHOD

See Also:

• Constant Field Values

LPAREN

public static final int LPAREN

See Also:

• Constant Field Values

RPAREN

public static final int RPAREN

See Also:

• Constant Field Values

COMMA

public static final int COMMA

See Also:

• Constant Field Values

MATRIX

public static final int MATRIX

See Also:

• Constant Field Values

VARIABLE

public static final int VARIABLE

See Also:

• Constant Field Values

FUNCTION_HANDLE

public static final int FUNCTION_HANDLE

See Also:

• Constant Field Values

FUNCTION_HANDLE_UNDEFINED

public static final int FUNCTION_HANDLE_UNDEFINED

See Also:

• Constant Field Values

kind

public int kind

value

public double value

name

public String name

frameIndex

public int frameIndex

The slot in the execution frame where this token's value lives. Used only when kind == NUMBER or VARIABLE and it represents a variable.

v

public Variable v

m

public Matrix m

id

public int id

opChar

public char opChar

precedence

public int precedence

isRightAssoc

public boolean isRightAssoc

isPostfix

public boolean isPostfix

arity

public int arity

assignToName

public String assignToName

isAssignmentTarget

public boolean isAssignmentTarget

Constructor Details

Token

public Token(double value)

Token

public Token(Variable v)

Constructor for Variables

Parameters:

v - The scalar variable..e.g a=2

Token

public Token(String fn,
 boolean defined)

Constructor for Function Handles. Used to pass references of functions as arguments to higher-order functions. e.g., in f(x)=x^3*sin(x); diff(f,1,1), 'f' is the function handle. In certain contexts, a function handle is passed to a method but it has not being defined anywhere. This method after it runs will create the function from the passed undefined handle and automatically store it. A good example is the diff method.

Parameters:

fn - The name of the function being referenced.

Token

public Token(Matrix m)

Token

public Token(char opChar,
 int precedence,
 boolean isRightAssoc,
 boolean isPostfix)

Token

public Token(int kind,
 String name,
 int arity,
 int id,
 ErrorLog log)

Token

public Token(int kind)

Token

public Token(int kind,
 String name,
 int arity,
 int id,
 String assignToName,
 ErrorLog log)

Method Details

clone

public MathExpression.Token clone()

Overrides:

clone in class Object

getRawArgs

public String[] getRawArgs()

isVariable

public boolean isVariable()

getPrec

public static int getPrec(char op)

getKind

public static String getKind(int kind)

isRightAssociative

public static boolean isRightAssociative(char op)

toJsonString

public String toJsonString()

toString

public String toString()

Overrides:

toString in class Object