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Author SHA1 Message Date
Jesse D. McDonald 960d7917c9 Enforce that all structures have types derived from 'structure'. 
Take advantage of this invariant to simplify struct type checks elsewhere.
Group (meta)structure definition with basic types.
 2012-07-14 13:47:03 -05:00
Jesse D. McDonald e1662ca4b8 Convert tail-call parameters to a byte-string. 
Add special variables for keyword arguments & values.
Add support for keyword arguments to (simplify-apply).
Implement full string parsing in src/reader.rls.
TODO: Support keywords in (simplify-lambda) and writer.
 2012-07-14 13:46:42 -05:00
Jesse D. McDonald bc3df6dd17 Swap continuation & context in the lambda and template structures. 
This is to separate the three 'call' parameters (target, argv, ctx) from
the 'return to' parameter (k). The old order made it look as if the dynamic
context was in some way related to the continuation, which is not the case.
 2012-07-14 13:43:26 -05:00
Jesse D. McDonald bc10f59c6e Allocate space for max. number of frame variables up front. 
Allows us to avoid reallocating a new vector after every tail-call.
 2012-07-14 13:40:47 -05:00
Jesse D. McDonald 10fbc269c5 Implement the remaining bytecodes. Adjust some of the numbering. 
Also, use #<undefined> for "not yet initialized" and #f for "no value".
 2012-07-14 13:38:40 -05:00
Jesse D. McDonald 0a2f13b523 Added built-in structure types and interpreter core (w/o bytecode). 
Improved timing resolution by using clock_gettime() instead of clock().
Also gave project a name: Rosella. Play on 'Parrot' (Perl 6 VM).
 2012-07-14 13:38:02 -05:00