/*
Implement storage and manipulation of grob properties.
- */
+*/
-#include <string.h>
-#include <math.h>
+#include <cstring>
#include "main.hh"
#include "input-smob.hh"
-#include "group-interface.hh"
+#include "pointer-group-interface.hh"
#include "misc.hh"
#include "paper-score.hh"
-#include "paper-def.hh"
-#include "grob.hh"
+#include "output-def.hh"
#include "spanner.hh"
#include "item.hh"
#include "misc.hh"
#include "item.hh"
-
+#include "program-option.hh"
+#include "profile.hh"
+#include "simple-closure.hh"
SCM
Grob::get_property_alist_chain (SCM def) const
{
- return scm_list_n (mutable_property_alist_,
- immutable_property_alist_,
- def,
- SCM_UNDEFINED);
+ return scm_list_n (mutable_property_alist_,
+ immutable_property_alist_,
+ def,
+ SCM_UNDEFINED);
}
+extern void check_interfaces_for_property (Grob const *me, SCM sym);
-/*
- This special add_thing routine is slightly more efficient than
-
- set_prop (name,cons (thing, get_prop (name)))
-
- since it can reuse the handle returned by scm_assq().
-*/
void
-Grob::add_to_list_property (SCM sym, SCM thing)
+Grob::internal_set_property (SCM sym, SCM v)
{
- SCM handle
- = scm_sloppy_assq (sym, mutable_property_alist_)
- ;
-
- if (handle != SCM_BOOL_F)
- {
- gh_set_cdr_x (handle, gh_cons (thing, gh_cdr (handle)));
- }
- else
+#ifndef NDEBUG
+ SCM grob_p = ly_lily_module_constant ("ly:grob?");
+ SCM grob_list_p = ly_lily_module_constant ("grob-list?");
+ SCM type = scm_object_property (sym, ly_symbol2scm ("backend-type?"));
+
+ if (type == grob_p
+ || type == grob_list_p
+ || (unsmob_grob (v) && ly_symbol2scm ("cause") != sym))
{
- /*
- There is no mutable prop yet, so create an entry, and put it in front of the
- mutable prop list.
- */
- handle = scm_sloppy_assq (sym, immutable_property_alist_);
- SCM tail = (handle != SCM_BOOL_F) ? gh_cdr(handle) : SCM_EOL;
- SCM val = gh_cons (thing, tail);
-
- mutable_property_alist_ = gh_cons (gh_cons (sym, val),
- mutable_property_alist_);
+ scm_display (scm_list_2 (sym, type), scm_current_output_port ());
+ assert (0);
}
-}
-
-
-extern void check_interfaces_for_property (Grob const *me, SCM sym);
+#endif
-void
-Grob::internal_set_grob_property (SCM s, SCM v)
-{
/* Perhaps we simply do the assq_set, but what the heck. */
- if (!live ())
+ if (!is_live ())
return;
- if (internal_type_checking_global_b)
+ if (do_internal_type_checking_global)
{
- if (!type_check_assignment (s, v, ly_symbol2scm ("backend-type?")))
+ if (!ly_is_procedure (v)
+ && !is_simple_closure (v)
+ && v != ly_symbol2scm ("calculation-in-progress")
+ && !type_check_assignment (sym, v, ly_symbol2scm ("backend-type?")))
abort ();
- check_interfaces_for_property (this, s);
+ check_interfaces_for_property (this, sym);
}
- mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, s, v);
+ mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, sym, v);
}
-
+//#define PROFILE_PROPERTY_ACCESSES
SCM
-Grob::internal_get_grob_property (SCM sym) const
+Grob::get_property_data (SCM sym) const
{
- SCM s = scm_sloppy_assq (sym, mutable_property_alist_);
- if (s != SCM_BOOL_F)
- return ly_cdr (s);
-
- s = scm_sloppy_assq (sym, immutable_property_alist_);
+#ifndef NDEBUG
+ if (profile_property_accesses)
+ note_property_access (&grob_property_lookup_table, sym);
+#endif
- if (internal_type_checking_global_b && gh_pair_p (s))
+ SCM handle = scm_sloppy_assq (sym, mutable_property_alist_);
+ if (handle != SCM_BOOL_F)
+ return scm_cdr (handle);
+
+ handle = scm_sloppy_assq (sym, immutable_property_alist_);
+
+ if (do_internal_type_checking_global && scm_is_pair (handle))
{
- if (!type_check_assignment (sym, gh_cdr (s),
+ SCM val = scm_cdr (handle);
+ if (!ly_is_procedure (val)
+ && !is_simple_closure (val)
+ && !type_check_assignment (sym, val,
ly_symbol2scm ("backend-type?")))
abort ();
+
check_interfaces_for_property (this, sym);
}
+
+ return (handle == SCM_BOOL_F) ? SCM_EOL : scm_cdr (handle);
+}
- return (s == SCM_BOOL_F) ? SCM_EOL : ly_cdr (s);
+SCM
+Grob::internal_get_property (SCM sym) const
+{
+ SCM val = get_property_data (sym);
+ if (ly_is_procedure (val)
+ || is_simple_closure (val))
+ {
+ val = ((Grob*)this)->try_callback (sym, val);
+ }
+
+ return val;
+}
+
+#ifndef NDEBUG
+#include "protected-scm.hh"
+
+Protected_scm grob_property_callback_stack = SCM_EOL;
+bool debug_property_callbacks = 0;
+#endif
+
+SCM
+Grob::try_callback (SCM sym, SCM proc)
+{
+ SCM marker = ly_symbol2scm ("calculation-in-progress");
+ /*
+ need to put a value in SYM to ensure that we don't get a
+ cyclic call chain.
+ */
+ mutable_property_alist_
+ = scm_assq_set_x (mutable_property_alist_, sym, marker);
+
+#ifndef NDEBUG
+ if (debug_property_callbacks)
+ grob_property_callback_stack = scm_acons (sym, proc, grob_property_callback_stack);
+#endif
+
+ SCM value = SCM_EOL;
+ if (ly_is_procedure (proc))
+ value = scm_call_1 (proc, self_scm ());
+ else if (is_simple_closure (proc))
+ {
+ value = evaluate_with_simple_closure (self_scm (),
+ simple_closure_expression (proc));
+ }
+#ifndef NDEBUG
+ if (debug_property_callbacks)
+ grob_property_callback_stack = scm_cdr (grob_property_callback_stack);
+#endif
+
+ /*
+ If the function returns SCM_UNSPECIFIED, we assume the
+ property has been set with an explicit set_property()
+ call.
+ */
+ if (value == SCM_UNSPECIFIED)
+ {
+ value = internal_get_property (sym);
+ if (value == marker)
+ mutable_property_alist_ = scm_assq_remove_x (mutable_property_alist_, marker);
+ }
+ else
+ internal_set_property (sym, value);
+
+ return value;
}
void
-Grob::substitute_mutable_properties (SCM crit, SCM orig)
+Grob::internal_set_object (SCM s, SCM v)
{
- set_break_subsititution(crit);
- mutable_property_alist_ = substitute_mutable_property_alist (orig);
+ /* Perhaps we simply do the assq_set, but what the heck. */
+ if (!is_live ())
+ return;
+
+ object_alist_ = scm_assq_set_x (object_alist_, s, v);
}
+void
+Grob::del_property (SCM sym)
+{
+ mutable_property_alist_ = scm_assq_remove_x (mutable_property_alist_, sym);
+}
+
+SCM
+Grob::internal_get_object (SCM sym) const
+{
+#ifdef PROFILE_PROPERTY_ACCESSES
+ note_property_access (&grob_property_lookup_table, sym);
+#endif
+
+ SCM s = scm_sloppy_assq (sym, object_alist_);
+
+ return (s == SCM_BOOL_F) ? SCM_EOL : scm_cdr (s);
+}
bool
-Grob::live () const
+Grob::is_live () const
{
return immutable_property_alist_ != SCM_EOL;
}
+
+
+bool
+Grob::internal_has_interface (SCM k)
+{
+ return scm_c_memq (k, interfaces_) != SCM_BOOL_F;
+}
projects / lilypond.git / blobdiff