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2010-05-02fix a comment about environments and the scheme compilerAndy Wingo1-2/+1
* module/language/scheme/compile-tree-il.scm: Fix a comment about the format of environments.
2010-03-19rename sc-expand to macroexpandAndy Wingo1-2/+2
* module/ice-9/boot-9.scm (macroexpand): Rename from sc-expand. (%pre-modules-transformer): Adapt to name change. * module/ice-9/compile-psyntax.scm: Adapt to name change. * module/ice-9/psyntax-pp.scm: Regenerated. * module/ice-9/psyntax.scm: Rename sc-expand to macroexpand. * module/language/scheme/compile-tree-il.scm (compile-tree-il): Adapt to name change.
2009-10-16compilation enviroments are always modules; simplifications & refactoringsAndy Wingo1-32/+3
* module/ice-9/boot-9.scm (make-fresh-user-module): New public function, makes an anonymous beautified module. * module/language/objcode/spec.scm: We used to have some things in here that allowed lexical variable names and values to be a part of the environment, but no more. Now an environment is just a module. If you want to "inject" free variables into code, just use lambda. * module/language/scheme/compile-tree-il.scm (compile-tree-il): Same here. Also, rely on the fact that an environment *will* be a module -- because (system base compile) guarantees that for us. * module/language/scheme/spec.scm (scheme): In the reader, rely on the environment being a module. Define a #:make-default-environment handler, which returns a beautified module, augmented with a fresh definition for current-reader, so that side effects to current-reader are restricted to the compilation unit. * module/language/tree-il/analyze.scm (report-possibly-unbound-variables): * module/language/tree-il/compile-glil.scm (compile-glil): * module/language/tree-il/optimize.scm (optimize!): The environment will be a module. * module/system/base/language.scm (<language>): New field, `make-default-environment'. Defaults to `make-fresh-user-module'. (default-environment): New accessor, returns a default environment for a language. * module/system/repl/common.scm (repl-compile): Always compile relative to the current module, because a module is always acceptable as an environment. * module/system/base/compile.scm (compile-file, compile-and-load): Both of these have a new keyword argument, #:env. For `compile-file', it defaults to the default environment of the source language, and for `compile-and-load', to the current module. (read-and-compile): If there are no expressions read, pass the joiner its default environment (via `default-environment joint').
2009-06-17Change Guile license to LGPLv3+Neil Jerram1-14/+13
(Not quite finished, the following will be done tomorrow. module/srfi/*.scm module/rnrs/*.scm module/scripts/*.scm testsuite/*.scm guile-readline/* )
2009-05-20and, or, cond etc use syntax-rules, compile scheme through tree-ilAndy Wingo1-3/+3
* libguile/vm-i-system.c: * libguile/vm-engine.h (ASSERT_BOUND): New assertion, that a value is bound. Used by local-ref and external-ref in paranoid mode. * module/ice-9/boot-9.scm (and, or, cond, case, do): Since we are switching to use psyntax as the first pass of the compiler, and perhaps soon of the interpreter too, we need to make sure it expands out all forms to primitive expressions. So define expanders for these derived syntax forms, as in the R5RS report. * module/ice-9/psyntax-pp.scm: Regenerate, with core forms fully expanded. * module/ice-9/psyntax.scm (build-void): New constructor, for making undefined values. (build-primref): Add in a hack so that primitive refs in the boot module expand out to toplevel refs, not module refs. (chi-void): Use build-void. (if): Define an expander for if that calls build-conditional. * module/language/scheme/compile-tree-il.scm (compile-tree-il): Use let* so as not to depend on binding order for the result of (current-module). * module/language/scheme/spec.scm (scheme): Switch over to tree-il as the primary intermediate language. Not yet fully tested, but at least it can compile psyntax-pp.scm. * module/language/tree-il/analyze.scm (analyze-lexicals): Arguments don't count towards a function's nlocs. * module/language/tree-il/compile-glil.scm (*comp-module*, compile-glil): Define a "compilation module" fluid. (flatten-lambda): Fix a call to make-glil-argument. Fix bug in heapifying arguments. (flatten): Fix number of arguments passed to apply instruction. Add a special case for `(values ...)'. If inlining primitive-refs fails, try expanding into toplevel-refs if the comp-module's variable is the same as the root variable. * module/language/tree-il/optimize.scm (resolve-primitives!): Add missing src variable for <module-ref>. * test-suite/tests/tree-il.test ("lambda"): Fix nlocs counts. Add a closure test case.
2009-05-08more work on tree-il compilationAndy Wingo1-0/+64
* module/language/scheme/amatch.scm: Remove, this approach won't be used. * module/Makefile.am: Adjust for additions and removals. * module/language/scheme/compile-ghil.scm: Remove an vestigial debugging statement. * module/language/scheme/spec.scm: * module/language/scheme/compile-tree-il.scm: * module/language/scheme/decompile-tree-il.scm: Add tree-il compiler and decompiler. * module/language/tree-il/compile-glil.scm: Add some notes. * module/language/tree-il/spec.scm: No need to wrap expressions in lambdas -- GHIL needs somewhere to put its variables, we don't.