org.quark.jasmine.Expression Class Reference

Inheritance diagram for org.quark.jasmine.Expression:

Public Member Functions
abstract Expression	eval (double...vars)
Public Member Functions inherited from org.quark.jasmine.AbstractExpression
	AbstractExpression ()
Answer	answer ()
long	getBuildTime ()
long	getEvalTime ()
String	infix ()
String	ast ()
String	bytecode ()

Additional Inherited Members
Protected Member Functions inherited from org.quark.jasmine.AbstractExpression
String	makeInfix (List< Exp > infix)
String	makeAST (Exp ast)
String	makeAST (Deque< Exp > ast)
void	mmakeASTimpl (Exp exp, String tab, StringBuilder sb)
String	makeByteCode (byte[] b)
Protected Attributes inherited from org.quark.jasmine.AbstractExpression
long	__buildTime
long	__evalTime
Answer	__answer
String	infix
String	ast
String	bytecode

Detailed Description

Abstract class for all Expressions.

Author

Peter Lager

Member Function Documentation

abstract Expression org.quark.jasmine.Expression.eval ( double...  vars )

pure virtual

This method is overridden in the generated class.

This method accepts zero or more values to be used in the expression. They are matched, in order, to the variables found in the expression. For example if the expression is

"4 + h * a / sin(a * b)"

then evaluating the method with

expression.eval(2.1, 6.2, -7.2);

will initialise the variables as

h = 2.1;  a = 6.2;  b = -7.2;

This method returns 'this' so for example you can chain like this:

expression.eval(2.1, 6.2, -7.2).answer().toDouble(); 

to get the answer as a float.

Parameters

vars	the initial values for variables

Returns

this Expression

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

• /Users/peter/git/jasmine-repos/Jasmine/src/org/quark/jasmine/Expression.java