Package gw.internal.gosu.parser.expressions

Class ArrayAccess

java.lang.Object

gw.internal.gosu.parser.ParsedElement

gw.internal.gosu.parser.Expression

gw.internal.gosu.parser.expressions.ArrayAccess

All Implemented Interfaces:

IArrayAccessExpression, IExpression, IHasType, IParsedElement

public final class ArrayAccess
extends Expression
implements IArrayAccessExpression

Represents a member access expression in the Gosu grammar:

 array-access
   <array-reference> [ <member> ]
 

 array-reference
   <expression>
 

 member
   <array-access>
   <expression>
 

See Also:

• IGosuParser

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	_bNullSafe
private Expression	_memberExpression	An expression for accessing a bean member/property dynamically
private Expression	_rootExpression	The array expression

Fields inherited from class gw.internal.gosu.parser.Expression

_type

Fields inherited from class gw.internal.gosu.parser.ParsedElement

_tokens, UNDEF_FILE, UNDEF_FUNCTION, UNDEF_MODULE

Fields inherited from interface gw.lang.parser.IExpression

EMPTY_ARRAY

Constructor Summary

Constructors

Constructor	Description
ArrayAccess()

Method Summary

Modifier and Type	Method	Description
Object	evaluate()	Evaluates the expression.
static Object	getArrayElement(Object obj, int iIndex, boolean bNullSafe)
IType	getComponentType()
static Object	getElementFromIterator(Iterator iter, int iIndex)
Expression	getMemberExpression()
Expression	getRootExpression()
static IType	getTypeToAutoInsert(IExpression rootExpression)
boolean	isNullSafe()
static boolean	needsAutoinsert(ArrayAccess arrayAccess)
void	setMemberExpression(Expression memberExpression)
void	setNullSafe(boolean bNullSafe)
void	setRootExpression(Expression rootExpression)
private void	setTypeInternal(IType rootType)
static boolean	supportsArrayAccess(IType type)
String	toString()	Subclasses should return a String representing the parsed expression.

Methods inherited from class gw.internal.gosu.parser.Expression

evaluate, getContextType, getReturnType, getType, getTypeImpl, isUnchecked, setType

Methods inherited from class gw.internal.gosu.parser.ParsedElement

addExceptionsFrom, addParseException, addParseException, addParseException, addParseExceptions, addParseIssues, addParseWarning, addParseWarning, addParseWarnings, addToken, adjustColumn, adjustLineNum, assignTokens, clearParseExceptions, clearParseTreeInformation, clearParseWarnings, compactParseTree, findAncestorParsedElementByType, findDeclaringStatement, findLineNumberOfDeclaration, findRootParsedElement, getAnnotations, getColumn, getContainedParsedElementsByType, getContainedParsedElementsByTypes, getContainedParsedElementsByTypesWithIgnoreSet, getEnclosingFeatureInfo, getFunctionName, getGosuClass, getGosuProgram, getImmediateParseIssue, getImmediateParseIssues, getLineNum, getLocation, getModule, getParent, getParseExceptions, getParseIssues, getParseWarnings, getQualifyingEnclosingTypeInfo, getTokens, hasImmediateParseIssue, hasImmediateParseWarning, hasImmediateParseWarnings, hasParseException, hasParseExceptions, hasParseIssue, hasParseIssues, hasParseWarning, hasParseWarnings, initEmptyParseTree, initLocation, isCompileTimeConstant, isSuppressed, isSuppressed, isSynthetic, makeDoubleValue, makeFloatValue, makeInteger, makeLong, removeParseException, removeParseWarning, removeParseWarningRecursively, setGosuProgram, setLineNum, setLocation, setParent, setSynthetic, shouldClearParseInfo, visit

Methods inherited from class java.lang.Object

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

Methods inherited from interface gw.lang.parser.IExpression

evaluate, getContextType, isUnchecked

Methods inherited from interface gw.lang.parser.IHasType

getType

Methods inherited from interface gw.lang.parser.IParsedElement

addExceptionsFrom, addParseException, addParseException, addParseWarning, addParseWarning, clearParseExceptions, clearParseTreeInformation, clearParseWarnings, findAncestorParsedElementByType, findDeclaringStatement, findRootParsedElement, getColumn, getContainedParsedElementsByType, getContainedParsedElementsByTypes, getContainedParsedElementsByTypesWithIgnoreSet, getFunctionName, getGosuClass, getGosuProgram, getImmediateParseIssue, getImmediateParseIssues, getLineNum, getLocation, getModule, getParent, getParseExceptions, getParseIssues, getParseWarnings, getReturnType, getTokens, hasImmediateParseIssue, hasImmediateParseWarnings, hasParseException, hasParseExceptions, hasParseIssue, hasParseIssues, hasParseWarning, hasParseWarnings, isCompileTimeConstant, isSuppressed, isSynthetic, setLocation, setParent, visit

Field Details

_rootExpression

private Expression _rootExpression

The array expression

_memberExpression

private Expression _memberExpression

An expression for accessing a bean member/property dynamically

_bNullSafe

private boolean _bNullSafe

Constructor Details

ArrayAccess

public ArrayAccess()

Method Details

getRootExpression

public Expression getRootExpression()

Specified by:

getRootExpression in interface IArrayAccessExpression

setRootExpression

public void setRootExpression(Expression rootExpression)

getMemberExpression

public Expression getMemberExpression()

Specified by:

getMemberExpression in interface IArrayAccessExpression

setMemberExpression

public void setMemberExpression(Expression memberExpression)

isNullSafe

public boolean isNullSafe()

Specified by:

isNullSafe in interface IExpression

Overrides:

isNullSafe in class Expression

setNullSafe

public void setNullSafe(boolean bNullSafe)

evaluate

public Object evaluate()

Evaluates the expression.

Specified by:

evaluate in interface IExpression

Overrides:

evaluate in class Expression

getTypeToAutoInsert

public static IType getTypeToAutoInsert(IExpression rootExpression)

needsAutoinsert

public static boolean needsAutoinsert(ArrayAccess arrayAccess)

getComponentType

public IType getComponentType()

Specified by:

getComponentType in interface IArrayAccessExpression

toString

public String toString()

Description copied from class: Expression

Subclasses should return a String representing the parsed expression.

Specified by:

toString in class Expression

getArrayElement

public static Object getArrayElement(Object obj,
 int iIndex,
 boolean bNullSafe)

setTypeInternal

private void setTypeInternal(IType rootType)

supportsArrayAccess

public static boolean supportsArrayAccess(IType type)

getElementFromIterator

public static Object getElementFromIterator(Iterator iter,
 int iIndex)