com.vaadin.sass.internal.parser.function
Class AbstractSingleParameterFunctionGenerator

java.lang.Object
  com.vaadin.sass.internal.parser.function.AbstractFunctionGenerator
      com.vaadin.sass.internal.parser.function.AbstractSingleParameterFunctionGenerator

All Implemented Interfaces:

SCSSFunctionGenerator

Direct Known Subclasses:

AbsFunctionGenerator, CeilFunctionGenerator, FloorFunctionGenerator, PercentageFunctionGenerator, RoundFunctionGenerator

public abstract class AbstractSingleParameterFunctionGenerator
extends AbstractFunctionGenerator

AbstractSingleParameterFunctionGenerator is used as a base class for implementing Sass functions that take exactly one single value parameter. A single value parameter is of type LexicalUnitImpl.

Author:

Vaadin

Constructor Summary

AbstractSingleParameterFunctionGenerator(String... functionNames)

Method Summary

SassListItem	compute(LexicalUnitImpl function) Computes the value of the function.
protected abstract LexicalUnitImpl	computeForParam(String functionName, LexicalUnitImpl firstParam) Compute the value of the function.

Methods inherited from class com.vaadin.sass.internal.parser.function.AbstractFunctionGenerator

getFunctionNames

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractSingleParameterFunctionGenerator

public AbstractSingleParameterFunctionGenerator(String... functionNames)

Method Detail

compute

public SassListItem compute(LexicalUnitImpl function)

Description copied from interface: SCSSFunctionGenerator

Computes the value of the function. The parameters should be evaluated before this method is called. Both the input and the output of the method should be separate from any chain of lexical units.

Parameters:

function - Function lexical unit to print its state

Returns:

SassListItem the value of the function

computeForParam

protected abstract LexicalUnitImpl computeForParam(String functionName,
                                                   LexicalUnitImpl firstParam)

Compute the value of the function. This method must not modify firstParam. If necessary, the implementation should copy the parameter before making modifications.

Parameters:

functionName - The name of the function whose value is to be computed.

firstParam - The only parameter of the function.

Returns: