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Author SHA1 Message Date
Brian Templeton
c6920dc8ba lexical function binding for elisp
* module/language/elisp/compile-tree-il.scm (access-variable)
  (reference-variable, set-variable!): Handle globally-bound non-special
  variables.

  (bind-lexically?): Create lexical bindings for flet and flet*.

* module/language/elisp/runtime.scm (reference-variable, set-variable!):
  Handle globally-bound non-special variables.

  (built-in-func): Set the variable directly instead of storing the
  function in a fluid.

* module/language/elisp/runtime/subrs.scm (funcall): Call apply
  directly.

* test-suite/tests/elisp-compiler.test ("Function Definitions")["flet
  and flet*"]:

Signed-off-by: Andy Wingo <wingo@pobox.com>
2010-12-07 13:21:03 +01:00
Brian Templeton
3f70b2dc5c use unbound fluids instead of `void' sentinel value
* module/language/elisp/compile-tree-il.scm (reference-with-check)
  (compile-without-void-checks, want-void-check?): Remove.

  (compile-function, compile-pair): Use `reference-variable' instead of
  `reference-with-check'.

  (compile-defvar): Only set `sym' if `sym' is not bound to a bound
  fluid, rather than requiring that its value be `void'.

  (process-options!): Remove `#:disable-void-check' option handling.

* module/language/elisp/runtime.scm (void)
  (reference-variable-with-check): Remove.

  (ensure-fluid!): Use an undefined fluid as the initial value for
  global variables.

* module/language/elisp/runtime/function-slot.scm (without-void-checks):
  Don't import or re-export.

* module/language/elisp/runtime/macros.scm (prog1, cond, or, dolist):
  Don't use `without-void-checks'.

* module/language/elisp/runtime/subrs.scm (symbol-value)
  (symbol-function, apply): Use `reference-variable' instead of
  `reference-variable-with-check'.

  (makunbound, fmakunbound, boundp, fboundp): Unset the variable's fluid
  (or the variable itself, if it isn't bound to a fluid).

* test-suite/tests/elisp-compiler.test ("Variable
  Setting/Referencing")["disabled void check (all)", "disabled void
  check (symbol list)", "without-void-checks"]: Remove.

Signed-off-by: Andy Wingo <wingo@pobox.com>
2010-12-07 13:21:03 +01:00
Brian Templeton
b41a673d26 allow (setcar nil nil)' and (setcdr nil nil)'
* module/language/elisp/runtime/subrs.scm (setcar, setcdr): Allow
  setting the car or cdr of `nil' to `nil'.

Signed-off-by: Andy Wingo <wingo@pobox.com>
2010-12-07 13:21:03 +01:00
Brian Templeton
9efe5b230d new `load' subr
* module/language/elisp/runtime/subrs.scm: Define new subr `load'.
* module/language/elisp/runtime/function-slot.scm: Re-export `load'.
2010-12-07 13:21:02 +01:00
Brian Templeton
8295b7c4e5 store macro definitions in the function slot
Guile Emacs Lisp previously kept macros in a separate macro slot; now
macros are stored as macro objects in the function slot for
compatibility with other implementations.

* module/language/elisp/compile-tree-il.scm (macro-slot): Remove.
  (is-macro?): Check that the argument is a symbol. Now-unnecessary
  check removed in `compile-tree-il'.
  (macro?, define-macro!, get-macro): Store macro definitions in the
  function slot, not in a separate macro slot.
* module/language/elisp/runtime.scm (built-in-macro): Wrap the macro
  function in a macro object (i.e., cons the symbol `macro' onto it).
* module/language/elisp/runtime/function-slot.scm: Move contents to
  "subrs.scm". Re-export function and macro definitions instead of
  defining functions directly in this module.
* module/language/elisp/runtime/macro-slot.scm: Move contents to
  "macros.scm" and remove.
* module/language/elisp/runtime/macros.scm: New file containing macro
  definitions from "macro-slot.scm".
* module/language/elisp/runtime/subrs.scm: New file containing function
  definitions from "function-slot.scm".

Signed-off-by: Andy Wingo <wingo@pobox.com>
2010-12-07 13:21:02 +01:00