Package com._1c.g5.v8.dt.ql

Class QlCheckerExpression

java.lang.Object

com._1c.g5.v8.dt.ql.QlCheckerExpression

All Implemented Interfaces:

IExpectedTypesComputer, IExpressionTypeChecker

public class QlCheckerExpression
extends Object
implements IExpressionTypeChecker, IExpectedTypesComputer

class validate expression in ql language

See Also:

ICheckerExpressionType

Nested Class Summary

Nested classes/interfaces inherited from interface com._1c.g5.v8.dt.ql.typesystem.IExpressionTypeChecker

IExpressionTypeChecker.CheckResult

Constructor Summary

Constructors

Constructor	Description
QlCheckerExpression()

Method Summary

Modifier and Type	Method	Description
IExpressionTypeChecker.CheckResult	checkType(org.eclipse.emf.ecore.EObject expression)	expression can't be null
IExpressionTypeChecker.CheckResult	checkType(org.eclipse.emf.ecore.EObject expression, boolean needValidate)	Check and compute expression type
TypeDescriptionSource	getExpectedType(org.eclipse.emf.ecore.EObject expression, org.eclipse.emf.ecore.EStructuralFeature feature, int featureIndex)	Gets expected type for feature of expression

Methods inherited from class java.lang.Object

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

Constructor Detail

QlCheckerExpression

public QlCheckerExpression()

Method Detail

checkType

public IExpressionTypeChecker.CheckResult checkType(org.eclipse.emf.ecore.EObject expression)

expression can't be null

Specified by:

checkType in interface IExpressionTypeChecker

Parameters:

expression - checking expression, can't be null

Returns:

result of checking, never null

See Also:

ITypeSystem

checkType

public IExpressionTypeChecker.CheckResult checkType(org.eclipse.emf.ecore.EObject expression,
                                                    boolean needValidate)

Description copied from interface: IExpressionTypeChecker

Check and compute expression type

Specified by:

checkType in interface IExpressionTypeChecker

Parameters:

expression - checking expression, can't be null

needValidate - true if validation needed, false otherwise

Returns:

result of checking, never null

See Also:

ITypeSystem

getExpectedType

public TypeDescriptionSource getExpectedType(org.eclipse.emf.ecore.EObject expression,
                                             org.eclipse.emf.ecore.EStructuralFeature feature,
                                             int featureIndex)

Description copied from interface: IExpectedTypesComputer

Gets expected type for feature of expression

Specified by:

getExpectedType in interface IExpectedTypesComputer

Parameters:

expression - expression, can't be null

feature - feature of the expression, can be null

featureIndex - index of feature

Returns:

expected type for feature of expression, empty TypeDescription corresponding to anything type

See Also:

ITypeSystem