Package com.google.common.css.compiler.passes

Class BooleanExpressionEvaluator

java.lang.Object

com.google.common.css.compiler.passes.BooleanExpressionEvaluator

public class BooleanExpressionEvaluator
extends Object

An evaluator for boolean expressions. The evaluation returns a new boolean expression node corresponding to true, false, or to the condition if that was not recognized.

Constructor Summary

Constructors

Constructor	Description
BooleanExpressionEvaluator(CssBooleanExpressionNode expression, Set<String> trueConditions)	Evaluates a boolean expression given a set of true conditions.
BooleanExpressionEvaluator(CssBooleanExpressionNode expression, Set<String> trueConditions, Set<String> falseConditions)	Evaluates a boolean expression given a set of true conditions and a set of false conditions.

Method Summary

Modifier and Type	Method	Description
CssBooleanExpressionNode	evaluate()	Evaluates the boolean expression associated with this evaluator.

Methods inherited from class java.lang.Object

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

Constructor Details

BooleanExpressionEvaluator

public BooleanExpressionEvaluator(CssBooleanExpressionNode expression,
 Set<String> trueConditions)

Evaluates a boolean expression given a set of true conditions. Conditions that are not in the set are assumed to be false.

BooleanExpressionEvaluator

public BooleanExpressionEvaluator(CssBooleanExpressionNode expression,
 Set<String> trueConditions,
 Set<String> falseConditions)

Evaluates a boolean expression given a set of true conditions and a set of false conditions. Conditions that are not in any of the sets are assumed to be unknown and are left in the resulting boolean expression.

Method Details

evaluate

public CssBooleanExpressionNode evaluate()

Evaluates the boolean expression associated with this evaluator.