From: David Landrith <dlandrith@...>
Date: 2003-01-01T02:51:31+09:00
Subject: 

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I'm having two problems extending the array class.

First, I am getting instances where super == nil.  It seems to me that 
this should be impossible.  The code that results in super == nil is as 
follows:

	def TypedArray.initWithArray(parent, content)

		ta = TypedArray.new(parent)
		content.each() { |val| ta << val }
		return ta
	end

When I take this returned object and run methods that access super, 
super will equal nil.  For example:

	def [](colNum)

		puts ("******************super == nil") if super == nil;
		return super[@parent.colsIdx[colNum]]
	end

The above method will print the "super == nil" string and throw the 
exception saying [] is not defined for nil.

Second, I am redefining the [] and []= methods, so within those, I have 
to access super[]= and super[] (or else I'll have an infinite regress). 
For example:

	def []=(colNum, val)
		super[@parent.colsIdx[colNum]] = val
	end

I am getting very odd results.  For example, a[0] = "yet another test 
col 0" actually sets a[0] to "yet anothyet another test col 0r test col 
0".  Moreover, if I insert the following line:

puts(super.type)

I get "String" every time.

These results strike me as anomalous and are too bizarre for me to 
explain, especially give the fact that my source code is rather 
rudimentary.

I am using ruby 1.6.7 on MacOS X 10.2.3.  I am using the version that 
came with the developer tools, and ruby --version gives me the 
following:

ruby 1.6.7 (2002-03-01) [powerpc-darwin6.0]

Thanks,

Dave

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