Zero-offset branches are backward branches; fix "br" backward branches
[bpt/guile.git] / libguile / expand.c
index cae5520..7d6a6ed 100644 (file)
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2012
+/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013
  * Free Software Foundation, Inc.
  * 
  * This library is free software; you can redistribute it and/or
@@ -56,8 +56,8 @@ static const char** exp_field_names[SCM_NUM_EXPANDED_TYPES];
   SCM_MAKE_EXPANDED_VOID(src)
 #define CONST_(src, exp) \
   SCM_MAKE_EXPANDED_CONST(src, exp)
-#define PRIMITIVE_REF_TYPE(src, name) \
-  SCM_MAKE_EXPANDED_PRIMITIVE_REF_TYPE(src, name)
+#define PRIMITIVE_REF(src, name) \
+  SCM_MAKE_EXPANDED_PRIMITIVE_REF(src, name)
 #define LEXICAL_REF(src, name, gensym) \
   SCM_MAKE_EXPANDED_LEXICAL_REF(src, name, gensym)
 #define LEXICAL_SET(src, name, gensym, exp) \
@@ -74,10 +74,12 @@ static const char** exp_field_names[SCM_NUM_EXPANDED_TYPES];
   SCM_MAKE_EXPANDED_TOPLEVEL_DEFINE(src, name, exp)
 #define CONDITIONAL(src, test, consequent, alternate) \
   SCM_MAKE_EXPANDED_CONDITIONAL(src, test, consequent, alternate)
-#define APPLICATION(src, proc, exps) \
-  SCM_MAKE_EXPANDED_APPLICATION(src, proc, exps)
-#define SEQUENCE(src, exps) \
-  SCM_MAKE_EXPANDED_SEQUENCE(src, exps)
+#define PRIMCALL(src, name, exps) \
+  SCM_MAKE_EXPANDED_PRIMCALL(src, name, exps)
+#define CALL(src, proc, exps) \
+  SCM_MAKE_EXPANDED_CALL(src, proc, exps)
+#define SEQ(src, head, tail) \
+  SCM_MAKE_EXPANDED_SEQ(src, head, tail)
 #define LAMBDA(src, meta, body) \
   SCM_MAKE_EXPANDED_LAMBDA(src, meta, body)
 #define LAMBDA_CASE(src, req, opt, rest, kw, inits, gensyms, body, alternate) \
@@ -86,8 +88,6 @@ static const char** exp_field_names[SCM_NUM_EXPANDED_TYPES];
   SCM_MAKE_EXPANDED_LET(src, names, gensyms, vals, body)
 #define LETREC(src, in_order_p, names, gensyms, vals, body) \
   SCM_MAKE_EXPANDED_LETREC(src, in_order_p, names, gensyms, vals, body)
-#define DYNLET(src, fluids, vals, body) \
-  SCM_MAKE_EXPANDED_DYNLET(src, fluids, vals, body)
 
 #define CAR(x)   SCM_CAR(x)
 #define CDR(x)   SCM_CDR(x)
@@ -153,7 +153,6 @@ SCM_SYNTAX ("@", expand_at);
 SCM_SYNTAX ("@@", expand_atat);
 SCM_SYNTAX ("begin", expand_begin);
 SCM_SYNTAX ("define", expand_define);
-SCM_SYNTAX ("with-fluids", expand_with_fluids);
 SCM_SYNTAX ("eval-when", expand_eval_when);
 SCM_SYNTAX ("if", expand_if);
 SCM_SYNTAX ("lambda", expand_lambda);
@@ -174,19 +173,13 @@ SCM_SYNTAX ("case-lambda", expand_case_lambda);
 SCM_SYNTAX ("case-lambda*", expand_case_lambda_star);
 
 
-SCM_GLOBAL_SYMBOL (scm_sym_apply, "apply");
 SCM_GLOBAL_SYMBOL (scm_sym_arrow, "=>");
 SCM_GLOBAL_SYMBOL (scm_sym_at, "@");
 SCM_GLOBAL_SYMBOL (scm_sym_atat, "@@");
-SCM_GLOBAL_SYMBOL (scm_sym_at_call_with_values, "@call-with-values");
-SCM_GLOBAL_SYMBOL (scm_sym_atapply, "@apply");
-SCM_GLOBAL_SYMBOL (scm_sym_atcall_cc, "@call-with-current-continuation");
 SCM_GLOBAL_SYMBOL (scm_sym_begin, "begin");
 SCM_GLOBAL_SYMBOL (scm_sym_case, "case");
 SCM_GLOBAL_SYMBOL (scm_sym_cond, "cond");
 SCM_GLOBAL_SYMBOL (scm_sym_define, "define");
-SCM_GLOBAL_SYMBOL (scm_sym_at_dynamic_wind, "@dynamic-wind");
-SCM_GLOBAL_SYMBOL (scm_sym_with_fluids, "with-fluids");
 SCM_GLOBAL_SYMBOL (scm_sym_else, "else");
 SCM_GLOBAL_SYMBOL (scm_sym_eval_when, "eval-when");
 SCM_GLOBAL_SYMBOL (scm_sym_if, "if");
@@ -195,12 +188,13 @@ SCM_GLOBAL_SYMBOL (scm_sym_let, "let");
 SCM_GLOBAL_SYMBOL (scm_sym_letrec, "letrec");
 SCM_GLOBAL_SYMBOL (scm_sym_letstar, "let*");
 SCM_GLOBAL_SYMBOL (scm_sym_or, "or");
-SCM_GLOBAL_SYMBOL (scm_sym_at_prompt, "@prompt");
+SCM_SYMBOL (sym_call_with_prompt, "call-with-prompt");
 SCM_GLOBAL_SYMBOL (scm_sym_quote, "quote");
 SCM_GLOBAL_SYMBOL (scm_sym_set_x, "set!");
 SCM_SYMBOL (sym_lambda_star, "lambda*");
 SCM_SYMBOL (sym_eval, "eval");
 SCM_SYMBOL (sym_load, "load");
+SCM_SYMBOL (sym_primitive, "primitive");
 
 SCM_GLOBAL_SYMBOL (scm_sym_unquote, "unquote");
 SCM_GLOBAL_SYMBOL (scm_sym_quasiquote, "quasiquote");
@@ -356,17 +350,22 @@ expand (SCM exp, SCM env)
         {
           SCM arg_exps = SCM_EOL;
           SCM args = SCM_EOL;
-          SCM proc = CAR (exp);
+          SCM proc = expand (CAR (exp), env);
           
           for (arg_exps = CDR (exp); scm_is_pair (arg_exps);
                arg_exps = CDR (arg_exps))
             args = scm_cons (expand (CAR (arg_exps), env), args);
-          if (scm_is_null (arg_exps))
-            return APPLICATION (scm_source_properties (exp),
-                                expand (proc, env),
-                                scm_reverse_x (args, SCM_UNDEFINED));
-          else
+          args = scm_reverse_x (args, SCM_UNDEFINED);
+
+          if (!scm_is_null (arg_exps))
             syntax_error ("expected a proper list", exp, SCM_UNDEFINED);
+
+          if (SCM_EXPANDED_TYPE (proc) == SCM_EXPANDED_PRIMITIVE_REF)
+            return PRIMCALL (scm_source_properties (exp),
+                             SCM_EXPANDED_REF (proc, PRIMITIVE_REF, NAME),
+                             args);
+          else
+            return CALL (scm_source_properties (exp), proc, args);
         }
     }
   else if (scm_is_symbol (exp))
@@ -399,7 +398,9 @@ expand_sequence (const SCM forms, const SCM env)
   if (scm_is_null (CDR (forms)))
     return expand (CAR (forms), env);
   else
-    return SEQUENCE (SCM_BOOL_F, expand_exprs (forms, env));
+    return SEQ (scm_source_properties (forms),
+                expand (CAR (forms), env),
+                expand_sequence (CDR (forms), env));
 }
 
 
@@ -421,9 +422,12 @@ static SCM
 expand_atat (SCM expr, SCM env SCM_UNUSED)
 {
   ASSERT_SYNTAX (scm_ilength (expr) == 3, s_bad_expression, expr);
-  ASSERT_SYNTAX (scm_ilength (CADR (expr)) > 0, s_bad_expression, expr);
   ASSERT_SYNTAX (scm_is_symbol (CADDR (expr)), s_bad_expression, expr);
 
+  if (scm_is_eq (CADR (expr), sym_primitive))
+    return PRIMITIVE_REF (scm_source_properties (expr), CADDR (expr));
+
+  ASSERT_SYNTAX (scm_ilength (CADR (expr)) > 0, s_bad_expression, expr);
   return MODULE_REF (scm_source_properties (expr),
                      CADR (expr), CADDR (expr), SCM_BOOL_F);
 }
@@ -490,10 +494,10 @@ expand_cond_clauses (SCM clause, SCM rest, int elp, int alp, SCM env)
                   scm_list_1 (expand (test, env)),
                   CONDITIONAL (SCM_BOOL_F,
                                LEXICAL_REF (SCM_BOOL_F, tmp, tmp),
-                               APPLICATION (SCM_BOOL_F,
-                                            expand (CADDR (clause), new_env),
-                                            scm_list_1 (LEXICAL_REF (SCM_BOOL_F,
-                                                                     tmp, tmp))),
+                               CALL (SCM_BOOL_F,
+                                     expand (CADDR (clause), new_env),
+                                     scm_list_1 (LEXICAL_REF (SCM_BOOL_F,
+                                                              tmp, tmp))),
                                rest));
     }
   /* FIXME length == 1 case */
@@ -555,30 +559,6 @@ expand_define (SCM expr, SCM env)
                           expand (CAR (body), env));
 }
 
-static SCM
-expand_with_fluids (SCM expr, SCM env)
-{
-  SCM binds, fluids, vals;
-  ASSERT_SYNTAX (scm_ilength (expr) >= 3, s_bad_expression, expr);
-  binds = CADR (expr);
-  ASSERT_SYNTAX_2 (scm_ilength (binds) >= 0, s_bad_bindings, binds, expr);
-  for (fluids = SCM_EOL, vals = SCM_EOL;
-       scm_is_pair (binds);
-       binds = CDR (binds))
-    {
-      SCM binding = CAR (binds);
-      ASSERT_SYNTAX_2 (scm_ilength (CAR (binds)) == 2, s_bad_binding,
-                       binding, expr);
-      fluids = scm_cons (expand (CAR (binding), env), fluids);
-      vals = scm_cons (expand (CADR (binding), env), vals);
-    }
-
-  return DYNLET (scm_source_properties (expr),
-                 scm_reverse_x (fluids, SCM_UNDEFINED),
-                 scm_reverse_x (vals, SCM_UNDEFINED),
-                 expand_sequence (CDDR (expr), env));
-}
-
 static SCM
 expand_eval_when (SCM expr, SCM env)
 {
@@ -996,9 +976,9 @@ expand_named_let (const SCM expr, SCM env)
                                       SCM_BOOL_F, SCM_BOOL_F, var_syms,
                                       expand_sequence (CDDDR (expr), inner_env),
                                       SCM_BOOL_F))),
-     APPLICATION (SCM_BOOL_F,
-                  LEXICAL_REF (SCM_BOOL_F, name, name_sym),
-                  expand_exprs (inits, env)));
+     CALL (SCM_BOOL_F,
+           LEXICAL_REF (SCM_BOOL_F, name, name_sym),
+           expand_exprs (inits, env)));
 }
 
 static SCM
@@ -1215,13 +1195,13 @@ make_exp_vtable (size_t n)
     (scm_string_append (scm_make_list (scm_from_size_t (exp_nfields[n]),
                                        scm_from_locale_string ("pw"))));
   printer = SCM_BOOL_F;
-  name = scm_from_locale_symbol (exp_names[n]);
+  name = scm_from_utf8_symbol (exp_names[n]);
   code = scm_from_size_t (n);
   fields = SCM_EOL;
   {
     size_t m = exp_nfields[n];
     while (m--)
-      fields = scm_cons (scm_from_locale_symbol (exp_field_names[n][m]), fields);
+      fields = scm_cons (scm_from_utf8_symbol (exp_field_names[n][m]), fields);
   }
 
   return scm_c_make_struct (scm_exp_vtable_vtable, 0, 5,
@@ -1246,13 +1226,13 @@ scm_init_expand ()
   DEFINE_NAMES (TOPLEVEL_SET);
   DEFINE_NAMES (TOPLEVEL_DEFINE);
   DEFINE_NAMES (CONDITIONAL);
-  DEFINE_NAMES (APPLICATION);
-  DEFINE_NAMES (SEQUENCE);
+  DEFINE_NAMES (CALL);
+  DEFINE_NAMES (PRIMCALL);
+  DEFINE_NAMES (SEQ);
   DEFINE_NAMES (LAMBDA);
   DEFINE_NAMES (LAMBDA_CASE);
   DEFINE_NAMES (LET);
   DEFINE_NAMES (LETREC);
-  DEFINE_NAMES (DYNLET);
 
   scm_exp_vtable_vtable =
     scm_make_vtable (scm_from_locale_string (SCM_VTABLE_BASE_LAYOUT "pwuwpw"),