Class IntSymbol

java.lang.Object
  AbstractSymbol
      IntSymbol

class IntSymbol

extends AbstractSymbol

String table entry for integer constants

See Also:

AbstractSymbol

Field Summary

protected int	index The index of this entry in the string table
protected java.lang.String	str The stored string

Constructor Summary

IntSymbol(java.lang.String str, int len, int index)

Method Summary

java.lang.Object	clone() Returns a copy of this symbol
void	codeDef(int intclasstag, java.io.PrintStream s) Generates code for the integer constant definition.
void	codeRef(java.io.PrintStream s) Emits a reference to this integer constant.
boolean	equals(java.lang.Object another) Tests if two symbols are equal.
boolean	equalsIndex(int index) Tests if the index argument is equal to the index of this symbol.
boolean	equalString(java.lang.String str, int len) Tests if the string argument is equal to the string in this symbol.
java.lang.String	getString() Returns the string representation of this symbol.
java.lang.String	toString() Returns a printable representation of this symbol.

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

str

protected java.lang.String str

The stored string

index

protected int index

The index of this entry in the string table

Constructor Detail

IntSymbol

public IntSymbol(java.lang.String str,
                 int len,
                 int index)

Method Detail

codeDef

public void codeDef(int intclasstag,
                    java.io.PrintStream s)

Generates code for the integer constant definition. This method is incomplete; you get to finish it up in programming assignment 5.

Parameters:

intclasstag - the class tag for string object

s - the output stream

codeRef

public void codeRef(java.io.PrintStream s)

Emits a reference to this integer constant.

Parameters:

s - the output stream

clone

public java.lang.Object clone()

Returns a copy of this symbol

Specified by:

clone in class AbstractSymbol

equalString

public boolean equalString(java.lang.String str,
                           int len)

Tests if the string argument is equal to the string in this symbol.

Parameters:

str - the string to compare

Returns:

true if the strings are equal

equalsIndex

public boolean equalsIndex(int index)

Tests if the index argument is equal to the index of this symbol. It is only meaningful to compare indecies of symbols from the same string table.

Parameters:

index - the index to compare

Returns:

true if the indecies are equal

equals

public boolean equals(java.lang.Object another)

Tests if two symbols are equal. Symbol equality is equivalent to equality of their indecies, so it is only meaningful to compare symbols that came from the same string table.

Parameters:

another - the other symbol

Returns:

true if the symbols are equal

getString

public java.lang.String getString()

Returns the string representation of this symbol.

toString

public java.lang.String toString()

Returns a printable representation of this symbol.