com.adamcornett.cminus.tree
Class VarTree

java.lang.Object
  org.antlr.runtime.tree.BaseTree
      org.antlr.runtime.tree.CommonTree
          com.adamcornett.cminus.tree.CMTree
              com.adamcornett.cminus.tree.ExprNode
                  com.adamcornett.cminus.tree.VarTree

All Implemented Interfaces:

ScopeNode, SymbolNode, TypeNode, org.antlr.runtime.tree.Tree

Direct Known Subclasses:

ParamTree

public class VarTree
extends ExprNode
implements ScopeNode, SymbolNode

A node that represents a variable (symbol)

Author:

Adam Cornett

Field Summary

protected CMTree	IDNode The identifier node
protected Scope	scope The scope which the symbol is defined in.
private Symbol	sym The associated symbol from the SymbolTable

Fields inherited from class com.adamcornett.cminus.tree.CMTree

log

Fields inherited from class org.antlr.runtime.tree.CommonTree

childIndex, parent, startIndex, stopIndex, token

Fields inherited from class org.antlr.runtime.tree.BaseTree

children

Fields inherited from interface org.antlr.runtime.tree.Tree

INVALID_NODE

Constructor Summary

VarTree(org.antlr.runtime.Token payload)

Method Summary

void	emitCode(ClassGenerator classGenerator)
int	getRequiredStack()
Type	getReturnType()
Scope	getScope()
int	getScopeNumber()
Symbol	getSymbol()
protected void	initSymbol()
boolean	isArray()
void	pushIndex(ClassGenerator cg)
void	setReturnType(Type t)
void	setScope(Scope s)
void	setSymbol(Symbol s)

Methods inherited from class com.adamcornett.cminus.tree.ExprNode

getOperandType

Methods inherited from class com.adamcornett.cminus.tree.CMTree

emitLineInfo, getMaxTreeDepth, getNextLabelNumber

Methods inherited from class org.antlr.runtime.tree.CommonTree

dupNode, getCharPositionInLine, getChildIndex, getLine, getParent, getText, getToken, getTokenStartIndex, getTokenStopIndex, getType, isNil, setChildIndex, setParent, setTokenStartIndex, setTokenStopIndex, setUnknownTokenBoundaries, toString

Methods inherited from class org.antlr.runtime.tree.BaseTree

addChild, addChildren, createChildrenList, deleteChild, freshenParentAndChildIndexes, freshenParentAndChildIndexes, getAncestor, getAncestors, getChild, getChildCount, getChildren, getFirstChildWithType, hasAncestor, replaceChildren, sanityCheckParentAndChildIndexes, sanityCheckParentAndChildIndexes, setChild, toStringTree

Methods inherited from class java.lang.Object

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

Field Detail

sym

private Symbol sym

The associated symbol from the SymbolTable

IDNode

protected CMTree IDNode

The identifier node

scope

protected final Scope scope

The scope which the symbol is defined in.

Constructor Detail

VarTree

public VarTree(org.antlr.runtime.Token payload)

Method Detail

emitCode

public void emitCode(ClassGenerator classGenerator)

Overrides:

emitCode in class CMTree

getRequiredStack

public int getRequiredStack()

Overrides:

getRequiredStack in class CMTree

getReturnType

public Type getReturnType()

Specified by:

getReturnType in interface TypeNode

getScope

public Scope getScope()

Specified by:

getScope in interface ScopeNode

getScopeNumber

public int getScopeNumber()

Specified by:

getScopeNumber in interface ScopeNode

getSymbol

public Symbol getSymbol()

Specified by:

getSymbol in interface SymbolNode

isArray

public boolean isArray()

pushIndex

public void pushIndex(ClassGenerator cg)

setReturnType

public void setReturnType(Type t)

Specified by:

setReturnType in interface TypeNode

setScope

public void setScope(Scope s)

Specified by:

setScope in interface ScopeNode

setSymbol

public void setSymbol(Symbol s)

Specified by:

setSymbol in interface SymbolNode

initSymbol

protected void initSymbol()