com.whitestein.lsps.lang.ast

Class VariableExpression

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.VariableExpression

All Implemented Interfaces:

ASTInfo, ASTNode, ASTRange

public final class VariableExpression
extends AssignableExpression

Expression representing fully qualified variable.

Author:

rba

Field Summary

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

EMPTY

Constructor Summary

Constructors

Constructor and Description
VariableExpression(ASTInfo info, VariableInfo varInfo)

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.
java.lang.String	getName() Returns the variable name.
java.lang.String	getNamespaceName() Returns the namespace name of the variable.
VariableInfo	getVariableInfo() Returns the variable-info.
protected java.lang.Object	interpretCompoundAssignment(Operation operation, Expression arg, Interpreter interpreter, InterpreterStackTrace stackTrace)
boolean	isModule() Returns the module flag.
boolean	isReadOnly() Returns true if this is a read only variable
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

VariableExpression

public VariableExpression(ASTInfo info,
                          VariableInfo varInfo)

Parameters:

info -

varInfo -

Throws:

java.lang.NullPointerException - if the varInfo is null

Method Detail

getNamespaceName

public java.lang.String getNamespaceName()

Returns the namespace name of the variable.

Returns:

the namespace name of the variable

isModule

public boolean isModule()

Returns the module flag.

Returns:

the module flag

getName

public java.lang.String getName()

Returns the variable name.

Returns:

the variable name

isReadOnly

public boolean isReadOnly()

Returns true if this is a read only variable

Returns:

true if this is a read only variable

getVariableInfo

public VariableInfo getVariableInfo()

Returns the variable-info.

Returns:

the variable-info

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