com.whitestein.lsps.lang.ast

Class PropertyExpression

java.lang.Object

com.whitestein.lsps.lang.ast.ASTRangeImpl

com.whitestein.lsps.lang.ast.ASTNodeImpl

com.whitestein.lsps.lang.ast.Expression

com.whitestein.lsps.lang.ast.AssignableExpression

com.whitestein.lsps.lang.ast.PropertyExpression

All Implemented Interfaces:

ASTInfo, ASTNode, ASTRange

public final class PropertyExpression
extends AssignableExpression

Expression representing record property access.

Author:

rba

Field Summary

Fields inherited from interface com.whitestein.lsps.lang.ast.ASTInfo

EMPTY

Constructor Summary

Constructors

Constructor and Description
PropertyExpression(ASTInfo info, Expression recordExpression, RecordType recordType, java.lang.String property, boolean safe) Creates new instance of PropertyExpression.
PropertyExpression(ASTInfo info, Expression recordExpression, RecordType recordType, java.lang.String property, Type propertyType, boolean safe) Creates new instance of PropertyExpression.

Method Summary

Modifier and Type	Method and Description
<T,E extends java.lang.Throwable> T	accept(ExpressionVisitor<T,E> visitor) Accepts visitor.
protected java.lang.Object	basicInterpret(Interpreter interpreter, InterpreterStackTrace stackTrace) Interpret expression.
ASTNode	getOperatorRange()
java.lang.String	getProperty() Returns the property to access.
ASTNode	getPropertyRange() Returns the range of the property identifier.
Expression	getRecordExpression() Returns the record expression.
RecordType	getRecordType() Returns the associated record type.
protected java.lang.Object	interpretCompoundAssignment(Operation operation, Expression arg, Interpreter interpreter, InterpreterStackTrace stackTrace)
boolean	isSafe() Returns the value of safe flag.
void	setValue(java.lang.Object value, Namespace namespace, InterpreterStackTrace stackTrace, ExpressionOrigin origin) Assign a value into the assignable (e.g.

Methods inherited from class com.whitestein.lsps.lang.ast.Expression

createANTLRParser, doInterpret, evalCondition, evaluateToExpressions, executeCompiled, getCompiled, getDebugLine, getIdentifierAst, getParseTimeConstant, getPrimaryRange, getPropertySelectorRange, getRange, getResultExpression, getResultExpressions, getType, interpret, interpretInCurrentNamespace, isCreatingNonModuleContextObjects, isParseTimeConstant, requiresNewNamespace, setCompiled, showInFullText, showInSurroundingText, showInText, toExpressions

Methods inherited from class com.whitestein.lsps.lang.ast.ASTNodeImpl

getFullText, getLine, getNodeText, getText, toString

Methods inherited from class com.whitestein.lsps.lang.ast.ASTRangeImpl

contains, getBeginIndex, getEndIndex, getLength

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.whitestein.lsps.lang.ast.ASTNode

getFullText, getLine, getNodeText, getText

Methods inherited from interface com.whitestein.lsps.lang.ast.ASTRange

contains, getBeginIndex, getEndIndex, getLength

Constructor Detail

PropertyExpression

public PropertyExpression(ASTInfo info,
                          Expression recordExpression,
                          RecordType recordType,
                          java.lang.String property,
                          boolean safe)

Creates new instance of PropertyExpression.

Parameters:

info -

recordExpression -

recordType -

property -

safe - when true, property expression returns null if the left side is null

Throws:

java.lang.NullPointerException - if recordExpression or property is null or recordType is null

PropertyExpression

public PropertyExpression(ASTInfo info,
                          Expression recordExpression,
                          RecordType recordType,
                          java.lang.String property,
                          Type propertyType,
                          boolean safe)

Creates new instance of PropertyExpression.

Parameters:

info -

recordExpression -

recordType -

property -

propertyType -

safe -

Method Detail

getRecordExpression

public Expression getRecordExpression()

Returns the record expression.

Returns:

the record expression

getRecordType

public RecordType getRecordType()

Returns the associated record type.

Returns:

the record type

getProperty

public java.lang.String getProperty()

Returns the property to access.

Returns:

the property to access

isSafe

public boolean isSafe()

Returns the value of safe flag.

Returns:

the value of safe flag.

accept

public <T,E extends java.lang.Throwable> T accept(ExpressionVisitor<T,E> visitor)
                                           throws E extends java.lang.Throwable

Description copied from class: Expression

Accepts visitor.

Specified by:

accept in class Expression

Returns:

the result of visit

Throws:

E

E extends java.lang.Throwable

basicInterpret

protected java.lang.Object basicInterpret(Interpreter interpreter,
                                          InterpreterStackTrace stackTrace)
                                   throws ErrorException

Description copied from class: Expression

Interpret expression.

Specified by:

basicInterpret in class Expression

Returns:

result of interpretation

Throws:

ErrorException

setValue

public void setValue(java.lang.Object value,
                     Namespace namespace,
                     InterpreterStackTrace stackTrace,
                     ExpressionOrigin origin)
              throws ErrorException

Description copied from class: AssignableExpression

Assign a value into the assignable (e.g. variable or record field).

Specified by:

setValue in class AssignableExpression

Throws:

ErrorException

interpretCompoundAssignment

protected java.lang.Object interpretCompoundAssignment(Operation operation,
                                                       Expression arg,
                                                       Interpreter interpreter,
                                                       InterpreterStackTrace stackTrace)
                                                throws ErrorException

Specified by:

interpretCompoundAssignment in class AssignableExpression

Throws:

ErrorException

getPropertyRange

public ASTNode getPropertyRange()

Returns the range of the property identifier.

Returns:

the range of the property identifier

getOperatorRange

public ASTNode getOperatorRange()

Returns:

the range of the operator