com.whitestein.lsps.lang.ast

Class PropertyLiteralExpression

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.PropertyLiteralExpression

All Implemented Interfaces:

ASTInfo, ASTNode, ASTRange

public final class PropertyLiteralExpression
extends Expression

Author:

mvo

Field Summary

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

EMPTY

Constructor Summary

Constructors

Constructor and Description
PropertyLiteralExpression(ASTInfo info, RecordType recordType, List<String> properties)
PropertyLiteralExpression(ASTInfo info, RecordType recordType, String property)

Method Summary

Modifier and Type	Method and Description
<T,E extends Throwable> T	accept(ExpressionVisitor<T,E> visitor) Accepts visitor.
protected Object	basicInterpret(Interpreter interpreter, InterpreterStackTrace stackTrace) Interpret expression.
Object	getParseTimeConstant() Returns the value of the expression determined in parse time.
List<String>	getProperties()
ASTRange	getPropertyRange(int index) Returns the range of the property identifier at the given index.
RecordProperty	getRecordProperty(int index) Returns the record property corresponding to the path segment at the given index.
RecordType	getRecordType()
int	getSegmentCount()
ASTNode	getTypeRange() Returns the range of the record type.
PropertyPath	getValue() Returns the property path value, or null if the expression is not valid.
boolean	isParseTimeConstant() Returns true if the value of the expression is known in parse time.

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

createANTLRParser, doInterpret, evalCondition, evaluateToExpressions, executeCompiled, getCompiled, getDebugLine, getIdentifierAst, getPrimaryRange, getPropertySelectorRange, getRange, getResultExpression, getResultExpressions, getType, interpret, interpretInCurrentNamespace, isCreatingNonModuleContextObjects, 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

PropertyLiteralExpression

public PropertyLiteralExpression(ASTInfo info,
                                 RecordType recordType,
                                 String property)

Parameters:

info -

recordType -

property -

PropertyLiteralExpression

public PropertyLiteralExpression(ASTInfo info,
                                 RecordType recordType,
                                 List<String> properties)

Parameters:

info -

recordType -

properties -

Method Detail

getValue

public PropertyPath getValue()

Returns the property path value, or null if the expression is not valid.

Returns:

the property path value

isParseTimeConstant

public boolean isParseTimeConstant()

Description copied from class: Expression

Returns true if the value of the expression is known in parse time. E.g. constant literals, enumerations, types (without free types).

Overrides:

isParseTimeConstant in class Expression

Returns:

true if the expression value is known during parsing

See Also:

Expression.getParseTimeConstant()

getParseTimeConstant

public Object getParseTimeConstant()

Description copied from class: Expression

Returns the value of the expression determined in parse time. The default implementation throws UnsupportedOperationException. Subclasses, which return true when Expression.isParseTimeConstant() is called, should override this method.

Overrides:

getParseTimeConstant in class Expression

Returns:

the value determined in parse time

See Also:

Expression.isParseTimeConstant()

getRecordType

public RecordType getRecordType()

Returns:

the record type

getProperties

public List<String> getProperties()

Returns:

the properties

getSegmentCount

public int getSegmentCount()

Returns:

the number of property path segments

accept

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

Description copied from class: Expression

Accepts visitor.

Specified by:

accept in class Expression

Returns:

the result of visit

Throws:

E

E extends Throwable

basicInterpret

protected Object basicInterpret(Interpreter interpreter,
                                InterpreterStackTrace stackTrace)

Description copied from class: Expression

Interpret expression.

Specified by:

basicInterpret in class Expression

Returns:

result of interpretation

getRecordProperty

public RecordProperty getRecordProperty(int index)

Returns the record property corresponding to the path segment at the given index. May return null if the expression is not valid.

Parameters:

index -

Returns:

the record property

getTypeRange

public ASTNode getTypeRange()

Returns the range of the record type.

Returns:

the range of the record type

getPropertyRange

public ASTRange getPropertyRange(int index)

Returns the range of the property identifier at the given index.

Parameters:

index -

Returns:

the range of the property identifier at the given index