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2011-03-11  Stefan Monnier  <monnier@iro.umontreal.ca>

	* eval.c (Fprog1, Fprog2): Simplify and use XCDR/XCAR.
	(Fdefvar): Remove redundant SYMBOLP check.
	(Ffunctionp): Don't signal an error for undefined aliases.

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2011-03-06  Stefan Monnier  <monnier@iro.umontreal.ca>

	* bytecode.c (exec_byte_code): Remove old lexical binding slot handling
	and replace it with the a integer args-desc handling.
	* eval.c (funcall_lambda): Adjust arglist test accordingly.

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2011-03-01  Stefan Monnier  <monnier@iro.umontreal.ca>

	* callint.c (quotify_arg): Simplify the logic.
	(Fcall_interactively): Use lexical binding when evaluating the
	interactive spec of a lexically bound function.

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2011-02-25  Stefan Monnier  <monnier@iro.umontreal.ca>

	* eval.c (Qcurry): Remove.
	(funcall_funvec): Remove.
	(funcall_lambda): Move new byte-code handling to reduce impact.
	Treat all args as lexical in the case of lexbind.
	(Fcurry): Remove.
	* data.c (Qfunction_vector): Remove.
	(Ffunvecp): Remove.
	* lread.c (read1): Revert to calling make_byte_code here.
	(read_vector): Don't call make_byte_code any more.
	* lisp.h (enum pvec_type): Rename back to PVEC_COMPILED.
	(XSETCOMPILED): Rename back from XSETFUNVEC.
	(FUNVEC_SIZE): Remove.
	(FUNVEC_COMPILED_TAG_P, FUNVEC_COMPILED_P): Remove.
	(COMPILEDP): Rename back from FUNVECP.
	* fns.c (Felt): Remove unexplained FUNVEC check.
	* doc.c (Fdocumentation): Don't handle funvec.
	* alloc.c (make_funvec, Ffunvec): Remove.

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2011-02-21  Stefan Monnier  <monnier@iro.umontreal.ca>

	* bytecode.c (exec_byte_code): Change stack_ref and stack_set to use
	offsets relative to top rather than to bottom.

	* alloc.c (Fgarbage_collect): Don't mark the byte-stack redundantly.

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2011-02-19  Stefan Monnier  <monnier@iro.umontreal.ca>

	* window.c (Fsave_window_excursion): Remove.  Moved to Lisp.
	(syms_of_window): Don't defsubr it.
	* window.h (Fsave_window_excursion): Don't declare it.
	* bytecode.c (exec_byte_code): Inline Fsave_window_excursion.

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2011-02-17  Stefan Monnier  <monnier@iro.umontreal.ca>

	* eval.c (Vinternal_interpreter_environment): Remove.
	(syms_of_eval): Do declare Vinternal_interpreter_environment as
	a global lisp var, but unintern it to hide it.
	(Fcommandp):
	* data.c (Finteractive_form): Understand `closure's.

	* bytecode.c (exec_byte_code): Fix handling of &rest.

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2011-02-12  Stefan Monnier  <monnier@iro.umontreal.ca>

	* bytecode.c (Bvec_ref, Bvec_set): Remove.
	(exec_byte_code): Don't handle them.

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2010-12-27  Stefan Monnier  <monnier@iro.umontreal.ca>

	* eval.c (Fdefvar): Record specialness before computing initial value.

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2010-12-15  Stefan Monnier  <monnier@iro.umontreal.ca>

	* eval.c (Feval): Add `lexical' argument.  Adjust callers.
	(Ffuncall, eval_sub): Avoid goto.

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2010-12-14  Stefan Monnier  <monnier@iro.umontreal.ca>

	Try and be more careful about propagation of lexical environment.
	* eval.c (apply_lambda, funcall_lambda): Remove lexenv arg.
	(Feval): Always eval in the empty environment.
	(eval_sub): New function.  Use it for all calls to Feval that should
	evaluate in the lexical environment of the caller.
	Pass `closure's as is to apply_lambda.
	(Ffuncall): Pass `closure's as is to funcall_lambda.
	(funcall_lambda): Extract lexenv for `closure's, when applicable.
	Also use lexical scoping for the &rest argument, if applicable.
	* lisp.h (eval_sub): Declare.
	* lread.c (readevalloop): Remove `evalfun' argument.
	* print.c (Fwith_output_to_temp_buffer):
	* data.c (Fsetq_default): Use eval_sub.

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2010-12-13  Stefan Monnier  <monnier@iro.umontreal.ca>

	Make the effect of (defvar foo) local.
	* eval.c (apply_lambda): Make static.  Remove eval_flag arg.
	(Fsetq): Don't check declared_special.
	(Fdefun, Fdefmacro): Use Ffunction.
	(Fdefvar): Don't set declared_special for (defvar foo).
	(FletX): Check locally-special vars.  Only do specbind once.
	(Flet): Check locally-special vars.
	(Feval): Don't check declared_special.
	(funcall_lambda): Check locally-special vars.
	* lisp.h (apply_lambda): Remove extern declaration.
	* lread.c (readevalloop): CSE.

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2010-07-23  Andreas Schwab  <schwab@linux-m68k.org>

	* eval.c (funcall_funvec): Replace bcopy by memcpy.

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2010-06-18  Stefan Monnier  <monnier@iro.umontreal.ca>

	* eval.c (Fspecial_variable_p): Rename from `specialp'.

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2010-06-15  Stefan Monnier  <monnier@iro.umontreal.ca>

	* bytecode.c (exec_byte_code):
	* eval.c (Ffunctionp): Fix up int/Lisp_Object confusions.

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2008-04-23  Miles Bader  <miles@gnu.org>
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	* eval.c (Ffunctionp): Return nil for special forms.
	(Qunevalled): New variable.
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	(syms_of_eval): Initialize it.

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2007-10-18  Miles Bader  <miles@gnu.org>
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	* eval.c (FletX): Test the type of VARLIST rather than just !NILP.
	(Flet): Use XCAR instead of Fcar.
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2007-10-16  Miles Bader  <miles@gnu.org>
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	* alloc.c (make_funvec, Fpurecopy): Set the pseudo-vector type.
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2006-02-10  Miles Bader  <miles@gnu.org>
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	* eval.c (Ffunctionp): Supply new 2nd arg to Findirect_function.
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2005-03-04  Miles Bader  <miles@gnu.org>
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	* eval.c (FletX): Update Vinterpreter_lexical_environment for each
	variable we bind, instead of all at once like `let'.
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2004-08-09  Miles Bader  <miles@gnu.org>
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	Changes from merging the funvec patch:
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	* eval.c (Feval, Ffuncall): Don't special-case vectors.
	(funcall_lambda): Use FUNVEC_SIZE.
	(Fcurry): Remove function.
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	Merge funvec patch.
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2004-05-20  Miles Bader  <miles@gnu.org>

	* lisp.h: Declare make_funvec and Ffunvec.
	(enum pvec_type): Rename `PVEC_COMPILED' to `PVEC_FUNVEC'.
	(XSETFUNVEC): Rename from `XSETCOMPILED'.
	(FUNVEC_SIZE, FUNVEC_COMPILED_TAG_P, FUNVEC_COMPILED_P): New macros.
	(COMPILEDP): Define in terms of funvec macros.
	(FUNVECP, GC_FUNVECP): Rename from `COMPILEDP' & `GC_COMPILEDP'.
	(FUNCTIONP): Use FUNVECP instead of COMPILEDP.
	* alloc.c (make_funvec, funvec): New functions.
	(Fmake_byte_code): Make sure the first element is a list.

	* eval.c (Qcurry): New variable.
	(funcall_funvec, Fcurry): New functions.
	(syms_of_eval): Initialize them.
	(funcall_lambda): Handle non-bytecode funvec objects by calling
	funcall_funvec.
	(Ffuncall, Feval): Use FUNVECP insetad of COMPILEDP.
	* lread.c (read1): Return result of read_vector for `#[' syntax
	directly; read_vector now does any extra work required.
	(read_vector): Handle both funvec and byte-code objects, converting the
	type as necessary.  `bytecodeflag' argument is now called
	`read_funvec'.
	* data.c (Ffunvecp): New function.
	* doc.c (Fdocumentation): Return nil for unknown funvecs.
	* fns.c (mapcar1, Felt, concat): Allow funvecs.

	* eval.c (Ffunctionp): Use `funvec' operators instead of `compiled'
	operators.
	* alloc.c (Fmake_byte_code, Fpurecopy, mark_object): Likewise.
	* keyboard.c (Fcommand_execute): Likewise.
	* image.c (parse_image_spec): Likewise.
	* fns.c (Flength, concat, internal_equal): Likewise.
	* data.c (Faref, Ftype_of): Likewise.
	* print.c (print_preprocess, print_object): Likewise.

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2004-04-10  Miles Bader  <miles@gnu.org>
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	* eval.c (Fspecialp): New function.
	(syms_of_eval): Initialize it.
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2004-04-03  Miles Bader  <miles@gnu.org>
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	* eval.c (Feval): If a variable isn't bound lexically, fall back
	to looking it up dynamically even if it isn't declared special.
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2002-08-26  Miles Bader  <miles@gnu.org>
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	* bytecode.c (Fbyte_code): Fsub1 can GC, so protect it.
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2002-06-12  Miles Bader  <miles@gnu.org>
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	Lexical binding changes to the byte-code interpreter:
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	* bytecode.c (Bstack_ref, Bstack_set, Bstack_set2, Bvec_ref, Bvec_set)
	(BdiscardN): New constants.
	(exec_byte_code): Rename from `Fbyte_code'.
	Implement above new bytecodes.
	Add ARGS-TEMPLATE, NARGS and ARGS parameters, and optionally use
	them push initial args on the stack.
	(Fbyte_code): New function, just call `exec_byte_code'.
	Add additional optional arguments for `exec_byte_code'.
	(Qand_optional, Qand_rest): New extern declarations.
	* eval.c (Fcurry, Ffunctionp): New functions.
	(syms_of_eval): Initialize them.
	(funcall_lambda): Call `exec_byte_code' instead of Fbyte_code.
	If a compiled-function object has a `push-args' slot, call the
	byte-code interpreter without binding any arguments.
	(Ffuncall): Add support for curried functions.
	* lisp.h (Fbyte_code): Declare max-args as MANY.
	(exec_byte_code): New declaration.
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	Lexical binding changes to the lisp interpreter:
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	* lisp.h (struct Lisp_Symbol): Add `declared_special' field.
	(apply_lambda): Add new 3rd arg to decl.
	* alloc.c (Fmake_symbol): Initialize `declared_special' field.
	* eval.c (Vinterpreter_lexical_environment): New variable.
	(syms_of_eval): Initialize it.
	(Fsetq): Modify SYM's lexical binding if appropriate.
	(Ffunction): Return a closure if within a lexical environment.
	(Flet, FletX): Lexically bind non-defvar'd variables if inside a
	lexical environment.
	(Feval): Return lexical binding of variables, if they have one.
	Pass current lexical environment to embedded lambdas.  Handle closures.
	(Ffuncall): Pass nil lexical environment to lambdas.  Handle closures.
	(funcall_lambda): Add new LEXENV argument, and lexically bind
	arguments if it's non-nil.  Bind `interpreter-lexenv' if it changed.
	(apply_lambda): Add new LEXENV argument and pass it to funcall_lambda.
	(Fdefvaralias, Fdefvar, Fdefconst): Mark the variable as special.
	(Qinternal_interpreter_environment, Qclosure): New constants.
	(syms_of_eval): Initialize them.
	(Fdefun, Fdefmacro): Use a closure if lexical binding is active.
	* lread.c (defvar_bool, defvar_lisp_nopro, defvar_per_buffer)
	(defvar_kboard, defvar_int): Mark the variable as special.
	(Vlexical_binding, Qlexical_binding): New variables.
	(syms_of_lread): Initialize them.
	(Fload): Bind `lexically-bound' to nil unless specified otherwise
	in the file header.
	(lisp_file_lexically_bound_p): New function.
	(Qinternal_interpreter_environment): New variable.
	* doc.c (Qclosure): New extern declaration.
	(Fdocumentation, store_function_docstring): Handle interpreted
	closures.

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