Package org.apache.groovy.contracts.util

Class ExpressionUtils

java.lang.Object

org.apache.groovy.contracts.util.ExpressionUtils

public final class ExpressionUtils
extends Object

Internal utility class for extracting a boolean expression from the given expression or statement.

See Also:

• ClosureExpression
• BooleanExpression

Method Summary

Modifier and Type	Method	Description
static BooleanExpression	getBooleanExpression(List<BooleanExpression> booleanExpressions)	Collapses the supplied boolean expressions into a single expression combined with logical AND.
static List<BooleanExpression>	getBooleanExpression(ClosureExpression closureExpression)	Returns all BooleanExpression instances found in the given ClosureExpression.
static List<BooleanExpression>	getBooleanExpressionsFromAssertionStatements(BlockStatement blockStatement)	Returns all BooleanExpression instances found in the given BlockStatement.

Methods inherited from class java.lang.Object

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

Method Details

getBooleanExpression

public static List<BooleanExpression> getBooleanExpression(ClosureExpression closureExpression)

Returns all BooleanExpression instances found in the given ClosureExpression.

getBooleanExpressionsFromAssertionStatements

public static List<BooleanExpression> getBooleanExpressionsFromAssertionStatements(BlockStatement blockStatement)

Returns all BooleanExpression instances found in the given BlockStatement.

getBooleanExpression

public static BooleanExpression getBooleanExpression(List<BooleanExpression> booleanExpressions)

Collapses the supplied boolean expressions into a single expression combined with logical AND.

Parameters:

booleanExpressions - the expressions to combine

Returns:

the combined expression, or true if the input is empty