Class ClassTable

java.lang.Object
  ClassTable

class ClassTable

extends java.lang.Object

This class may be used to contain the semantic information such as the inheritance graph. You may use it or not as you like: it is only here to provide a container for the supplied methods.

Field Summary

private java.io.PrintStream	errorStream
private int	semantErrors

Constructor Summary

ClassTable(Classes cls)

Method Summary

boolean	errors() Returns true if there are any static semantic errors.
private void	installBasicClasses() Creates data structures representing basic Cool classes (Object, IO, Int, Bool, String).
static void	main(java.lang.String[] args)
java.io.PrintStream	semantError() Increments semantic error count and returns the print stream for error messages.
java.io.PrintStream	semantError(AbstractSymbol filename, TreeNode t) Prints the file name and the line number of the given tree node.
java.io.PrintStream	semantError(class_ c) Prints line number and file name of the given class.

Methods inherited from class java.lang.Object

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

Field Detail

semantErrors

private int semantErrors

errorStream

private java.io.PrintStream errorStream

Constructor Detail

ClassTable

public ClassTable(Classes cls)

Method Detail

installBasicClasses

private void installBasicClasses()

Creates data structures representing basic Cool classes (Object, IO, Int, Bool, String). Please note: as is this method does not do anything useful; you will need to edit it to make if do what you want.

semantError

public java.io.PrintStream semantError(class_ c)

Prints line number and file name of the given class. Also increments semantic error count.

Parameters:

c - the class

Returns:

a print stream to which the rest of the error message is to be printed.

semantError

public java.io.PrintStream semantError(AbstractSymbol filename,
                                       TreeNode t)

Prints the file name and the line number of the given tree node. Also increments semantic error count.

Parameters:

filename - the file name

t - the tree node

Returns:

a print stream to which the rest of the error message is to be printed.

semantError

public java.io.PrintStream semantError()

Increments semantic error count and returns the print stream for error messages.

Returns:

a print stream to which the error message is to be printed.

errors

public boolean errors()

Returns true if there are any static semantic errors.

main

public static void main(java.lang.String[] args)