eu.cqse.check.framework.util.tokens

Class TokenStreamTransformationPattern

java.lang.Object

eu.cqse.check.framework.util.tokens.TokenStreamTransformationPattern

public class TokenStreamTransformationPattern
extends java.lang.Object

Transforms a token stream according to a search and a replace pattern. Both patterns can contain variables in the form of $name.

Example

• Language: Java
• Search Pattern: assertNotNull($a)
• Replacement Pattern: $a != null
• Input: assertNotNull(foo)
• Output: foo != null

Additionally, variables can be postfixed with a number, e.g. $a1 to signal that the code matched to $a1 should only be exactly 1 token in length.

Field Summary

Fields

Modifier and Type	Field and Description
static int	NO_MATCH Returned if the matcher did not match.

Constructor Summary

Constructors

Constructor and Description
TokenStreamTransformationPattern(java.lang.String searchPatternString, java.lang.String replacementPatternString, ELanguage language) Constructor.

Method Summary

Modifier and Type	Method and Description
static java.util.List<IToken>	applyPatterns(java.util.List<IToken> tokens, java.util.List<TokenStreamTransformationPattern> patterns) Applies the given patterns on the token stream and replaces all matches with the transformed tokens.
int	containsMoreVariables(int offset, java.util.List<IToken> tokens) Checks if the given tokens after the given offset contain more variables that should be replaced.
ELanguage	getLanguage()

Methods inherited from class java.lang.Object

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

Field Detail

NO_MATCH

public static final int NO_MATCH

Returned if the matcher did not match.

See Also:

Constant Field Values

Constructor Detail

TokenStreamTransformationPattern

public TokenStreamTransformationPattern(java.lang.String searchPatternString,
                                        java.lang.String replacementPatternString,
                                        ELanguage language)
                                 throws CheckException

Constructor.

Throws:

CheckException - if the search pattern has invalid syntax.

Method Detail

containsMoreVariables

public int containsMoreVariables(int offset,
                                 java.util.List<IToken> tokens)

Checks if the given tokens after the given offset contain more variables that should be replaced.

applyPatterns

public static java.util.List<IToken> applyPatterns(java.util.List<IToken> tokens,
                                                   java.util.List<TokenStreamTransformationPattern> patterns)

Applies the given patterns on the token stream and replaces all matches with the transformed tokens.

getLanguage

public ELanguage getLanguage()