org.trimou.handlebars

Class HelperValidator

java.lang.Object

org.trimou.handlebars.HelperValidator

public final class HelperValidator
extends Object

Since:

1.5

Author:

Martin Kouba

Method Summary

Modifier and Type	Method and Description
static int	getFirstDeterminingEqualsCharPosition(String part)
static void	checkHash(Class<? extends Helper> helperClazz, HelperDefinition definition, int hashSize)
static void	checkHash(HelperDefinition definition, BasicHelper helper)
static void	checkParams(Class<? extends Helper> helperClazz, HelperDefinition definition, int paramSize)
static void	checkType(Class<? extends Helper> helperClazz, HelperDefinition definition, MustacheTagType... allowedTypes)
static MustacheException	newValidationException(String msg, Class<? extends Helper> helperClazz, HelperDefinition definition)
static Iterator<String>	splitHelperName(String name, Segment segment) Extracts parts from an input string.

Methods inherited from class java.lang.Object

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

Method Detail

checkParams

public static void checkParams(Class<? extends Helper> helperClazz,
                               HelperDefinition definition,
                               int paramSize)

Parameters:

helperClazz -

definition -

paramSize -

Throws:

MustacheException - If the helper expects more params

checkType

public static void checkType(Class<? extends Helper> helperClazz,
                             HelperDefinition definition,
                             MustacheTagType... allowedTypes)

Parameters:

helperClazz -

definition -

allowedTypes -

Throws:

MustacheException - If the helper tag type does not match any one of the specified types

checkHash

public static void checkHash(Class<? extends Helper> helperClazz,
                             HelperDefinition definition,
                             int hashSize)

Parameters:

helperClazz -

definition -

hashSize -

Throws:

MustacheException - If the helper expects more hash entries

checkHash

public static void checkHash(HelperDefinition definition,
                             BasicHelper helper)

Parameters:

definition -

hashSize -

See Also:

checkHash(Class, HelperDefinition, int)

splitHelperName

@Internal
public static Iterator<String> splitHelperName(String name,
                                                         Segment segment)

Extracts parts from an input string. This implementation is quite naive and should be possibly rewritten. Note that we can't use a simple splitter because of string literals may contain whitespace chars.

Parameters:

name -

segment -

Returns:

the parts of the helper name

Throws:

MustacheException - If a compilation problem occurs

getFirstDeterminingEqualsCharPosition

public static int getFirstDeterminingEqualsCharPosition(String part)

Parameters:

part -

Returns:

the index of an equals char outside of any string literal, -1 if no such char is found

newValidationException

public static MustacheException newValidationException(String msg,
                                                       Class<? extends Helper> helperClazz,
                                                       HelperDefinition definition)