Package org.codehaus.groovy.ast.tools
Class ClosureUtils
- java.lang.Object
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- org.codehaus.groovy.ast.tools.ClosureUtils
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public class ClosureUtils extends java.lang.ObjectHandy methods when working with Closure AST data structures.
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Constructor Summary
Constructors Constructor Description ClosureUtils()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static java.lang.StringconvertClosureToSource(ReaderSource readerSource, ClosureExpression expression)Converts a ClosureExpression into the String source.static Parameter[]getParametersSafe(ClosureExpression ce)static booleanhasImplicitParameter(ClosureExpression ce)static booleanhasSingleCharacterArg(Closure c)Does the Closure have a single char-like (char or Character) argument.static booleanhasSingleStringArg(Closure c)Does the Closure have a single String argument.
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Method Detail
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convertClosureToSource
public static java.lang.String convertClosureToSource(ReaderSource readerSource, ClosureExpression expression) throws java.lang.Exception
Converts a ClosureExpression into the String source.- Parameters:
readerSource- a sourceexpression- a closure. Can't be null- Returns:
- the source the closure was created from
- Throws:
java.lang.IllegalArgumentException- when expression is nulljava.lang.Exception- when closure can't be read from source
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hasSingleCharacterArg
public static boolean hasSingleCharacterArg(Closure c)
Does the Closure have a single char-like (char or Character) argument.- Parameters:
c- a Closure- Returns:
- true if it has exactly one argument and the type is char or Character
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hasSingleStringArg
public static boolean hasSingleStringArg(Closure c)
Does the Closure have a single String argument.- Parameters:
c- a Closure- Returns:
- true if it has exactly one argument and the type is String
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hasImplicitParameter
public static boolean hasImplicitParameter(ClosureExpression ce)
- Returns:
- true if the ClosureExpression has an implicit 'it' parameter
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getParametersSafe
public static Parameter[] getParametersSafe(ClosureExpression ce)
- Returns:
- the parameters for the ClosureExpression
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