summaryrefslogtreecommitdiff
path: root/libguile/vm-i-system.c
diff options
context:
space:
mode:
authorAndy Wingo <wingo@pobox.com>2009-10-14 00:08:35 +0200
committerAndy Wingo <wingo@pobox.com>2009-10-23 15:10:25 +0200
commit8a4ca0ea3bd3e378fc63ef719ce828b7252b3985 (patch)
treeff71f102d96cc8f10f67618cf136aa35fc55a47f /libguile/vm-i-system.c
parentc783b0827c5e5485209879b6cd329a7f095ecf9c (diff)
downloadguile-8a4ca0ea3bd3e378fc63ef719ce828b7252b3985.tar.gz
tree-il support for case-lambda
* module/language/tree-il.scm (<lambda>, <lambda-case>): Split lambda into the lambda itself, denoting the procedure, and lambda-case, denoting a particular arity case. Lambda-case is fairly featureful, and has not yet been fully tested. (<let-values>): Use a <lambda-case> as the binding expression. Seems to suit the purpose well. Adapt parsers, unparsers, traversal operators, etc. Sometimes in this first version we assume there are no optional args, rest args, or a predicate. * module/language/tree-il/analyze.scm (analyze-lexicals): Adapt for the new case-lambda regime. Fairly well commented. It actually simplifies things. (report-unused-variables): Update for new tree-il. * module/language/tree-il/compile-glil.scm: Adapt for the new tree-il. There are some first stabs here at proper case-lambda compilation, but they are untested as of yet. * module/language/tree-il/inline.scm (inline!): Rework so we can recurse on a single node; though these transformations are strictly reductive, so they should complete in bounded time. Simplify accordingly, and adapt to case-lambda. Oh, and we handle lambda->let in not just the nullary case. * module/ice-9/psyntax.scm (build-simple-lambda, build-case-lambda) (build-lambda-case): New constructors. The idea is that after syntax expansion, we shouldn't have to deal with improper lists any more. Build-simple-lambda is a shortcut for the common case. The others are not fully exercised yet. Adapt callers. (syntax): Add some debugging in the lambda case. I don't fully understand this, but in practice we don't seem to see rest args here. (lambda): Inline chi-lambda-clause, and adapt for build-simple-lambda. * module/ice-9/psyntax-pp.scm: Regenerated. * test-suite/tests/tree-il.test: Update tests for new tree-il lambda format, and to expect post-prelude labels for all glil programs.
Diffstat (limited to 'libguile/vm-i-system.c')
0 files changed, 0 insertions, 0 deletions