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java.lang.Objectast.ASTNode
ast.Expr
ast.VarExpr
public class VarExpr
The VarExpr class represents variable expressions. It contains the name of the variable. Note: these may actually be 'this', 'super', or 'null'. Also, these may or may not include a reference object name (if the variable is a field). Because fields are 'protected' in Bantam Java, the reference object name must always be either 'this' or 'super'.
ASTNode
,
Expr
Field Summary | |
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protected java.lang.String |
name
The name of the variable (possibly 'this', 'super', or 'null') |
protected Expr |
ref
The optional reference object expression (must be 'this' or 'super' for non-arrays) |
Fields inherited from class ast.ASTNode |
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charNum, lineNum, lineStr |
Constructor Summary | |
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VarExpr(int lineNum,
Expr ref,
java.lang.String name)
VarExpr constructor |
Method Summary | |
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java.lang.Object |
accept(visitor.Visitor v,
java.lang.Object o)
Visitor method |
java.lang.String |
getName()
Get the name of the variable |
Expr |
getRef()
Get the reference object expression Only applicable if variable is a field (otherwise this returns null) |
Methods inherited from class ast.Expr |
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getExprType, setExprType |
Methods inherited from class ast.ASTNode |
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getLineNum |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected Expr ref
protected java.lang.String name
Constructor Detail |
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public VarExpr(int lineNum, Expr ref, java.lang.String name)
lineNum
- source line number corresponding to this AST noderef
- the optional reference object expression
(must be 'this' or 'super' for non-arrays)name
- the name of the variableMethod Detail |
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public Expr getRef()
public java.lang.String getName()
public java.lang.Object accept(visitor.Visitor v, java.lang.Object o)
accept
in class Expr
v
- visitor objecto
- object to pass down
Visitor
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