Jesse D. McDonald
4ab23f6877
Thread context register (%ctx) through %apply and %call/cc forms.
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Also remove top-level forms without side-effects during CPS transformation.
2012-07-14 13:44:46 -05:00
Jesse D. McDonald
35059dfebf
Implement register allocation.
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All that remains is to convert the result to bytecode & format as rosella source code.
2012-07-14 13:44:43 -05:00
Jesse D. McDonald
c3e46525db
Implement conversion of shared variables to boxes.
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Also, narrow bindings to their minimal necessary scope. This reduces
the number of variables which must be considered 'shared'.
2012-07-14 13:44:39 -05:00
Jesse D. McDonald
b899f0c3b0
Implement support for (call/cc), and shorthand form (let/cc).
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Adds support for non-local returns, among other control-flow structures.
2012-07-14 13:44:35 -05:00
Jesse D. McDonald
14b2a1570a
Add support for (quote) literal forms in compiler.ss.
2012-07-14 13:44:33 -05:00
Jesse D. McDonald
0b0b352dd6
Clean up handling of (let) and (%bind), plus misc. cleanup.
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With this change, any (%bind) returned from (simplify-let) or (simplify-form)
can be assumed to be flat, with unique bound symbols. Before, this was only
true of (%lambda) forms and the output of (compile).
2012-07-14 13:44:30 -05:00
Jesse D. McDonald
6b51229c48
Raise an error if (set! ...) is applied to a form without a value.
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Exception is (%tail-call ...) form, which is permitted simply because
(%tail-call ...) transfers control unidirectionally; the enclosing
(%set! ...) form wouldn't be run anyway.
2012-07-14 13:44:17 -05:00
Jesse D. McDonald
8e147f7989
Don't create extra lambdas when both results of (if ...) are trivial.
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Also map () directly to %nil, and allow (%if ...) to provide a value to a set! form.
2012-07-14 13:44:05 -05:00
Jesse D. McDonald
46b18c07d6
Implement conversion to tail-call form (CPS).
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Also add some basic optimizations concerning binding and setting
variables which will never be used.
2012-07-14 13:43:58 -05:00
Jesse D. McDonald
988d4264b2
Improve representation of tail-calls, and normalize primitive operations.
2012-07-14 13:43:45 -05:00
Jesse D. McDonald