/
callcontext.pmc
1679 lines (1239 loc) · 46.4 KB
/
callcontext.pmc
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/*
Copyright (C) 2008-2011, Parrot Foundation.
=head1 NAME
src/pmc/callcontext.pmc - CallContext PMC
=head1 DESCRIPTION
The CallContext PMC is used to store the argument list and argument meta
information for a multiple dispatch call.
=head2 Functions
=over 4
=cut
*/
typedef struct Pcc_cell
{
union u {
PMC *p;
STRING *s;
INTVAL i;
FLOATVAL n;
} u;
INTVAL type;
} Pcc_cell;
#define NOCELL 0
#define INTCELL 1
#define FLOATCELL 2
#define STRINGCELL 3
#define PMCCELL 4
#define ALLOC_CELL(i) \
(Pcc_cell *)Parrot_gc_allocate_fixed_size_storage((i), sizeof (Pcc_cell))
#define FREE_CELL(i, c) \
Parrot_gc_free_fixed_size_storage((i), sizeof (Pcc_cell), (c))
#define CLONE_CELL(i, c, c_new) do { \
(c_new) = ALLOC_CELL(i); \
*(c_new) = *(c); \
} while (0)
#define CELL_TYPE_MASK(c) (c)->type
#define CELL_INT(c) (c)->u.i
#define CELL_FLOAT(c) (c)->u.n
#define CELL_STRING(c) (c)->u.s
#define CELL_PMC(c) (c)->u.p
#define HLL_TYPE(i) Parrot_hll_get_ctx_HLL_type(interp, (i))
/* HEADERIZER HFILE: none */
/* HEADERIZER BEGIN: static */
/* Don't modify between HEADERIZER BEGIN / HEADERIZER END. Your changes will be lost. */
static FLOATVAL autobox_floatval(PARROT_INTERP, ARGIN(const Pcc_cell *cell))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
static INTVAL autobox_intval(PARROT_INTERP, ARGIN(const Pcc_cell *cell))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
PARROT_CANNOT_RETURN_NULL
static PMC * autobox_pmc(PARROT_INTERP, ARGIN(Pcc_cell *cell), INTVAL type)
__attribute__nonnull__(1)
__attribute__nonnull__(2);
PARROT_CANNOT_RETURN_NULL
static STRING * autobox_string(PARROT_INTERP, ARGIN(const Pcc_cell *cell))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
static void ensure_positionals_storage(PARROT_INTERP,
ARGIN(PMC *self),
INTVAL size)
__attribute__nonnull__(1)
__attribute__nonnull__(2);
static void ensure_positionals_storage_ap(PARROT_INTERP,
ARGIN(PMC *self),
INTVAL size,
INTVAL allocated_positionals)
__attribute__nonnull__(1)
__attribute__nonnull__(2);
PARROT_CANNOT_RETURN_NULL
static Pcc_cell* get_cell_at(PARROT_INTERP, ARGIN(PMC *self), INTVAL key)
__attribute__nonnull__(1)
__attribute__nonnull__(2);
PARROT_CANNOT_RETURN_NULL
static Hash * get_hash(PARROT_INTERP, ARGIN(PMC *SELF))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
PARROT_CAN_RETURN_NULL
static PMC * get_named_names(PARROT_INTERP, ARGIN(PMC *SELF))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
static void mark_cell(PARROT_INTERP, ARGIN(Pcc_cell *c))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
static void mark_hash(PARROT_INTERP, ARGIN(Hash *h))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
static void mark_positionals(PARROT_INTERP, ARGIN(PMC *self))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
#define ASSERT_ARGS_autobox_floatval __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(cell))
#define ASSERT_ARGS_autobox_intval __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(cell))
#define ASSERT_ARGS_autobox_pmc __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(cell))
#define ASSERT_ARGS_autobox_string __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(cell))
#define ASSERT_ARGS_ensure_positionals_storage __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(self))
#define ASSERT_ARGS_ensure_positionals_storage_ap __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(self))
#define ASSERT_ARGS_get_cell_at __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(self))
#define ASSERT_ARGS_get_hash __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(SELF))
#define ASSERT_ARGS_get_named_names __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(SELF))
#define ASSERT_ARGS_mark_cell __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(c))
#define ASSERT_ARGS_mark_hash __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(h))
#define ASSERT_ARGS_mark_positionals __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(self))
/* Don't modify between HEADERIZER BEGIN / HEADERIZER END. Your changes will be lost. */
/* HEADERIZER END: static */
/*
=item C<static void ensure_positionals_storage(PARROT_INTERP, PMC *self, INTVAL
size)>
Ensure that C<self> has enough storage space for C<size> positionals.
=cut
*/
static void
ensure_positionals_storage(PARROT_INTERP, ARGIN(PMC *self), INTVAL size)
{
ASSERT_ARGS(ensure_positionals_storage)
INTVAL allocated_positionals;
GETATTR_CallContext_allocated_positionals(interp, self, allocated_positionals);
if (size <= allocated_positionals)
return;
ensure_positionals_storage_ap(interp, self, size, allocated_positionals);
}
/*
=item C<static void ensure_positionals_storage_ap(PARROT_INTERP, PMC *self,
INTVAL size, INTVAL allocated_positionals)>
Allocate a new chunk of memory that can contain C<allocated_positionals>
entries, either from the fixed size allocator or from system memory, and free
the the old chunk (if needed).
=cut
*/
static void
ensure_positionals_storage_ap(PARROT_INTERP,
ARGIN(PMC *self), INTVAL size, INTVAL allocated_positionals)
{
ASSERT_ARGS(ensure_positionals_storage_ap)
INTVAL num_positionals;
Pcc_cell *array, *new_array;
if (size < 8)
size = 8;
if (size > 8)
new_array = (Pcc_cell *)Parrot_gc_allocate_memory_chunk(interp,
size * sizeof (Pcc_cell));
else
new_array = (Pcc_cell *)Parrot_gc_allocate_fixed_size_storage(interp,
size * sizeof (Pcc_cell));
GETATTR_CallContext_positionals(interp, self, array);
if (array) {
GETATTR_CallContext_num_positionals(interp, self, num_positionals);
memcpy(new_array, array, num_positionals * sizeof (Pcc_cell));
if (allocated_positionals > 8)
Parrot_gc_free_memory_chunk(interp, array);
else
Parrot_gc_free_fixed_size_storage(interp,
allocated_positionals * sizeof (Pcc_cell), array);
}
SETATTR_CallContext_allocated_positionals(interp, self, size);
SETATTR_CallContext_positionals(interp, self, new_array);
}
/*
=item C<static Pcc_cell* get_cell_at(PARROT_INTERP, PMC *self, INTVAL key)>
Return the cell indexed by C<key>.
=cut
*/
PARROT_CANNOT_RETURN_NULL
static Pcc_cell*
get_cell_at(PARROT_INTERP, ARGIN(PMC *self), INTVAL key)
{
ASSERT_ARGS(get_cell_at)
Pcc_cell *cells;
ensure_positionals_storage(interp, self, key + 1);
GETATTR_CallContext_positionals(interp, self, cells);
return &cells[key];
}
/*
=item C<static INTVAL autobox_intval(PARROT_INTERP, const Pcc_cell *cell)>
Return C<cell> as an INTVAL.
=cut
*/
static INTVAL
autobox_intval(PARROT_INTERP, ARGIN(const Pcc_cell *cell))
{
ASSERT_ARGS(autobox_intval)
switch (CELL_TYPE_MASK(cell)) {
case INTCELL:
return CELL_INT(cell);
case FLOATCELL:
return (INTVAL)CELL_FLOAT(cell);
case STRINGCELL:
return CELL_STRING(cell) ? Parrot_str_to_int(interp, CELL_STRING(cell)) : 0;
case PMCCELL:
return VTABLE_get_integer(interp, CELL_PMC(cell));
default:
break;
}
/* exception */
return 0;
}
/*
=item C<static FLOATVAL autobox_floatval(PARROT_INTERP, const Pcc_cell *cell)>
Return C<cell> as an FLOATVAL.
=cut
*/
static FLOATVAL
autobox_floatval(PARROT_INTERP, ARGIN(const Pcc_cell *cell))
{
ASSERT_ARGS(autobox_floatval)
switch (CELL_TYPE_MASK(cell)) {
case INTCELL:
return (FLOATVAL)CELL_INT(cell);
case FLOATCELL:
return CELL_FLOAT(cell);
case STRINGCELL:
return CELL_STRING(cell) ? Parrot_str_to_num(interp, CELL_STRING(cell)) : 0.0;
case PMCCELL:
return VTABLE_get_number(interp, CELL_PMC(cell));
default:
break;
}
/* exception */
return 0.0;
}
/*
=item C<static STRING * autobox_string(PARROT_INTERP, const Pcc_cell *cell)>
Return C<cell> as an STRING.
=cut
*/
PARROT_CANNOT_RETURN_NULL
static STRING *
autobox_string(PARROT_INTERP, ARGIN(const Pcc_cell *cell))
{
ASSERT_ARGS(autobox_string)
switch (CELL_TYPE_MASK(cell)) {
case INTCELL:
return Parrot_str_from_int(interp, CELL_INT(cell));
case FLOATCELL:
return Parrot_str_from_num(interp, CELL_FLOAT(cell));
case STRINGCELL:
return CELL_STRING(cell);
case PMCCELL:
return VTABLE_get_string(interp, CELL_PMC(cell));
default:
break;
}
/* exception */
return STRINGNULL;
}
/*
=item C<static PMC * autobox_pmc(PARROT_INTERP, Pcc_cell *cell, INTVAL type)>
Return C<cell> as a PMC.
=cut
*/
PARROT_CANNOT_RETURN_NULL
static PMC *
autobox_pmc(PARROT_INTERP, ARGIN(Pcc_cell *cell), INTVAL type)
{
ASSERT_ARGS(autobox_pmc)
PMC *result = PMCNULL;
switch (type) {
case INTCELL:
result = Parrot_pmc_new(interp, HLL_TYPE(enum_class_Integer));
VTABLE_set_integer_native(interp, result, CELL_INT(cell));
break;
case FLOATCELL:
result = Parrot_pmc_new(interp, HLL_TYPE(enum_class_Float));
VTABLE_set_number_native(interp, result, CELL_FLOAT(cell));
break;
case STRINGCELL:
result = Parrot_pmc_box_string(interp, CELL_STRING(cell));
break;
case PMCCELL:
result = CELL_PMC(cell);
default:
/* exception */
break;
}
return result;
}
/*
=item C<static Hash * get_hash(PARROT_INTERP, PMC *SELF)>
Return the hash for this CallContext, creating a hash if necessary.
=cut
*/
PARROT_CANNOT_RETURN_NULL
static Hash *
get_hash(PARROT_INTERP, ARGIN(PMC *SELF))
{
ASSERT_ARGS(get_hash)
Hash *hash;
GETATTR_CallContext_hash(interp, SELF, hash);
if (!hash) {
hash = Parrot_hash_create(interp,
enum_type_ptr,
Hash_key_type_STRING);
SETATTR_CallContext_hash(interp, SELF, hash);
}
return hash;
}
/*
=item C<static void mark_cell(PARROT_INTERP, Pcc_cell *c)>
Mark this cell's GCable, if needed.
=cut
*/
static void
mark_cell(PARROT_INTERP, ARGIN(Pcc_cell *c))
{
ASSERT_ARGS(mark_cell)
switch (CELL_TYPE_MASK(c)) {
case STRINGCELL:
if (CELL_STRING(c))
Parrot_gc_mark_STRING_alive(interp, CELL_STRING(c));
break;
case PMCCELL:
if (!PMC_IS_NULL(CELL_PMC(c)))
Parrot_gc_mark_PMC_alive(interp, CELL_PMC(c));
break;
case INTCELL:
case FLOATCELL:
default:
break;
}
}
/*
=item C<static void mark_positionals(PARROT_INTERP, PMC *self)>
Mark this positional's GCables, if needed.
=cut
*/
static void
mark_positionals(PARROT_INTERP, ARGIN(PMC *self))
{
ASSERT_ARGS(mark_positionals)
INTVAL size;
GETATTR_CallContext_num_positionals(interp, self, size);
if (size) {
Pcc_cell *cells;
INTVAL i;
GETATTR_CallContext_positionals(interp, self, cells);
for (i = 0; i < size; ++i)
mark_cell(interp, &cells[i]);
}
}
/*
=item C<static void mark_hash(PARROT_INTERP, Hash *h)>
Mark this hash's GCables, if needed.
=cut
*/
/* don't look now, but here goes encapsulation.... */
static void
mark_hash(PARROT_INTERP, ARGIN(Hash *h))
{
ASSERT_ARGS(mark_hash)
parrot_hash_iterate(h,
Parrot_gc_mark_STRING_alive(interp, (STRING *)_bucket->key);
mark_cell(interp, (Pcc_cell *)_bucket->value););
}
/*
=item C<static PMC * get_named_names(PARROT_INTERP, PMC *SELF)>
Return all named arguments in a FixedStringArray.
=cut
*/
PARROT_CAN_RETURN_NULL
static PMC *
get_named_names(PARROT_INTERP, ARGIN(PMC *SELF))
{
ASSERT_ARGS(get_named_names)
Hash *hash;
GETATTR_CallContext_hash(interp, SELF, hash);
/* yes, this *looks* risky, but it's a Parrot STRING hash internally */
if (hash && hash->entries) {
UINTVAL j = 0;
PMC * const result =
Parrot_pmc_new_init_int(interp, enum_class_FixedStringArray, hash->entries);
parrot_hash_iterate(hash,
VTABLE_set_string_keyed_int(interp, result, j++, (STRING *)_bucket->key););
return result;
}
return PMCNULL;
}
#include "parrot/packfile.h"
#include "pmc/pmc_sub.h"
pmclass CallContext provides array provides hash auto_attrs {
/* Context attributes */
ATTR PMC *caller_ctx; /* caller context */
ATTR void *registers; /* pointer to allocated registers */
ATTR Regs_ni bp; /* pointers to FLOATVAL & INTVAL */
ATTR Regs_ps bp_ps; /* pointers to PMC & STR */
ATTR UINTVAL n_regs_used[4]; /* INSP in PBC points to Sub */
ATTR PMC *lex_pad; /* LexPad PMC */
ATTR PMC *outer_ctx; /* outer context, if a closure */
/* new call scheme and introspective variables */
ATTR PMC *current_sub; /* the Sub we are executing */
/* for now use a return continuation PMC */
ATTR PMC *handlers; /* local handlers for the context */
ATTR PMC *current_cont; /* the return continuation PMC */
ATTR PMC *current_namespace; /* The namespace we're currently in */
ATTR opcode_t *current_pc; /* program counter of Sub invocation */
ATTR PMC *current_sig; /* temporary CallContext PMC for active call */
/* deref the constants - we need them all the time */
ATTR FLOATVAL *num_constants;
ATTR STRING **str_constants;
ATTR PMC **pmc_constants;
ATTR INTVAL current_HLL; /* see also src/hll.c */
ATTR UINTVAL warns; /* Keeps track of activated warnings */
ATTR UINTVAL errors; /* fatals that can be turned off */
ATTR UINTVAL trace_flags;
ATTR UINTVAL recursion_depth; /* Sub call recursion depth */
/* Storage for arguments */
ATTR struct Pcc_cell *positionals; /* array of positionals */
ATTR INTVAL num_positionals; /* count of used positionals */
ATTR INTVAL allocated_positionals;/* count of allocated positionals */
ATTR PMC *type_tuple; /* Cached argument types for MDD */
ATTR STRING *short_sig; /* Simple string sig args & returns */
ATTR PMC *arg_flags; /* Integer array of argument flags */
ATTR PMC *return_flags; /* Integer array of return flags */
ATTR Hash *hash; /* Hash of named arguments */
ATTR PMC *continuation; /* Reusable continuation */
/*
=item C<void init()>
Initializes a newly created CallContext object.
=cut
*/
VTABLE void init() {
SET_ATTR_type_tuple(INTERP, SELF, PMCNULL);
SET_ATTR_positionals(INTERP, SELF, NULL);
SET_ATTR_num_positionals(INTERP, SELF, 0);
PObj_custom_mark_destroy_SETALL(SELF);
}
/*
=item C<void mark()>
Mark any referenced strings and PMCs.
=cut
*/
VTABLE void mark() {
Hash *hash;
PMC *tmp;
STRING *short_sig;
UINTVAL *n_regs_used;
if (!PMC_data(SELF))
return;
GET_ATTR_short_sig(INTERP, SELF, short_sig);
Parrot_gc_mark_STRING_alive(INTERP, short_sig);
mark_positionals(INTERP, SELF);
GET_ATTR_hash(INTERP, SELF, hash);
if (hash)
mark_hash(INTERP, hash);
GET_ATTR_arg_flags(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
GET_ATTR_return_flags(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
GET_ATTR_type_tuple(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
GET_ATTR_caller_ctx(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
GET_ATTR_lex_pad(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
GET_ATTR_outer_ctx(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
GET_ATTR_current_sub(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
GET_ATTR_handlers(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
GET_ATTR_current_cont(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
GET_ATTR_current_namespace(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
GET_ATTR_current_sig(INTERP, SELF, tmp);
Parrot_gc_mark_PMC_alive(INTERP, tmp);
/* We don't keep reusable continuation alive. It will keep too many
other things alive as well. Just NULL it */
SET_ATTR_continuation(INTERP, SELF, PMCNULL);
GET_ATTR_n_regs_used(INTERP, SELF, n_regs_used);
if (n_regs_used) {
Regs_ps bp_ps;
const UINTVAL regs_p = n_regs_used[REGNO_PMC];
const UINTVAL regs_s = n_regs_used[REGNO_STR];
UINTVAL i;
GET_ATTR_bp_ps(INTERP, SELF, bp_ps);
for (i = 0; i < regs_p; ++i) {
PMC * const p = bp_ps.regs_p[-1L-(i)];
/* Original code from CTX_REG_PMC */
if (p)
Parrot_gc_mark_PMC_alive(INTERP, p);
}
for (i = 0; i < regs_s; ++i) {
STRING * const s = bp_ps.regs_s[i];
if (s)
Parrot_gc_mark_STRING_alive(INTERP, s);
}
}
}
/*
=item C<void morph(PMC *type)>
Morph the call signature into a return signature. (Currently ignores
the type passed in, and resets the named and positional arguments
stored.)
=cut
*/
VTABLE void morph(PMC *type) {
Hash *hash;
if (!PMC_data(SELF))
return;
SET_ATTR_short_sig(INTERP, SELF, NULL);
SET_ATTR_arg_flags(INTERP, SELF, PMCNULL);
SET_ATTR_return_flags(INTERP, SELF, PMCNULL);
SET_ATTR_type_tuple(INTERP, SELF, PMCNULL);
/* Don't free positionals. Just reuse them */
SET_ATTR_num_positionals(INTERP, SELF, 0);
GET_ATTR_hash(INTERP, SELF, hash);
if (hash) {
parrot_hash_iterate(hash,
FREE_CELL(INTERP, (Pcc_cell *)_bucket->value););
Parrot_hash_destroy(INTERP, hash);
SET_ATTR_hash(INTERP, SELF, NULL);
}
}
VTABLE void destroy() {
INTVAL allocated_positionals;
Hash *hash;
if (!PMC_data(SELF))
return;
GET_ATTR_hash(INTERP, SELF, hash);
GET_ATTR_allocated_positionals(INTERP, SELF, allocated_positionals);
if (allocated_positionals) {
Pcc_cell *c;
GET_ATTR_positionals(INTERP, SELF, c);
if (allocated_positionals > 8)
Parrot_gc_free_memory_chunk(INTERP, c);
else
Parrot_gc_free_fixed_size_storage(INTERP,
allocated_positionals * sizeof (Pcc_cell), c);
}
if (hash) {
parrot_hash_iterate(hash,
FREE_CELL(INTERP, (Pcc_cell *)_bucket->value););
Parrot_hash_destroy(INTERP, hash);
}
Parrot_pcc_free_registers(INTERP, SELF);
}
/*
=item C<void set_string_native(STRING *value)>
Sets the short signature for the CallContext.
=cut
*/
VTABLE void set_string_native(STRING *value) {
SET_ATTR_short_sig(INTERP, SELF, value);
}
/*
=item C<STRING *get_string()>
Returns the short signature for the CallContext.
=cut
*/
VTABLE STRING *get_string() {
STRING *res;
Pcc_cell *c;
INTVAL num_positionals, i;
GET_ATTR_short_sig(INTERP, SELF, res);
if (res)
return res;
GET_ATTR_positionals(INTERP, SELF, c);
GET_ATTR_num_positionals(INTERP, SELF, num_positionals);
res = Parrot_str_new(INTERP, NULL, num_positionals);
for (i = 0; i < num_positionals; ++i) {
switch (c[i].type) {
case INTCELL:
res = Parrot_str_concat(INTERP, res, CONST_STRING(INTERP, "I"));
break;
case FLOATCELL:
res = Parrot_str_concat(INTERP, res, CONST_STRING(INTERP, "N"));
break;
case STRINGCELL:
res = Parrot_str_concat(INTERP, res, CONST_STRING(INTERP, "S"));
break;
case PMCCELL:
res = Parrot_str_concat(INTERP, res, CONST_STRING(INTERP, "P"));
break;
default:
PARROT_FAILURE("Impossible flag");
break;
}
}
/* TODO Add named args to signature */
/* After fixind build_MMD_type_tuple to use raw arguments instead of signature */
SET_ATTR_short_sig(INTERP, SELF, res);
return res;
}
/*
=item C<void set_pmc(PMC *value)>
Sets a fixed-size array of integer types (a type tuple) for the CallContext.
=cut
*/
VTABLE void set_pmc(PMC *value) {
SET_ATTR_type_tuple(INTERP, SELF, value);
}
/*
=item C<PMC *get_pmc()>
Returns a fixed-size array of integer types (a type tuple) for the
CallContext.
=cut
*/
VTABLE PMC *get_pmc() {
PMC *type_tuple;
GET_ATTR_type_tuple(INTERP, SELF, type_tuple);
if (PMC_IS_NULL(type_tuple)) {
Pcc_cell *c;
INTVAL num_positionals;
INTVAL i = 0;
GET_ATTR_positionals(INTERP, SELF, c);
GET_ATTR_num_positionals(INTERP, SELF, num_positionals);
type_tuple = Parrot_pmc_new_init_int(INTERP,
enum_class_FixedIntegerArray, num_positionals);
for (i = 0; i < num_positionals; ++i) {
INTVAL type;
switch (c[i].type) {
case INTCELL: type = -enum_type_INTVAL; break;
case FLOATCELL: type = -enum_type_FLOATVAL; break;
case STRINGCELL: type = -enum_type_STRING; break;
case PMCCELL:
type = PMC_IS_NULL(c[i].u.p)
? (INTVAL)-enum_type_PMC
: VTABLE_type(INTERP, c[i].u.p);
break;
default:
Parrot_ex_throw_from_c_args(INTERP, NULL,
EXCEPTION_INVALID_OPERATION,
"Multiple Dispatch: invalid argument type!");
}
VTABLE_set_integer_keyed_int(INTERP, type_tuple, i, type);
}
SET_ATTR_type_tuple(INTERP, SELF, type_tuple);
}
return type_tuple;
}
/*
=item C<void set_attr_str(STRING *key, PMC *value)>
Set a PMC value for an attribute by string name.
=over
=item results
Stores the return signature, an array of PMCs.
=item arg_flags
Stores a set of flags for the call signature arguments, an array of
integers.
=item return_flags
Stores a set of flags for the call signature return arguments, an array
of integers.
=back
=cut
*/
VTABLE void set_attr_str(STRING *key, PMC *value) {
if (STRING_equal(INTERP, key, CONST_STRING(INTERP, "arg_flags"))) {
SET_ATTR_arg_flags(INTERP, SELF, value);
}
else if (STRING_equal(INTERP, key, CONST_STRING(INTERP, "return_flags"))) {
SET_ATTR_return_flags(INTERP, SELF, value);
}
else
Parrot_ex_throw_from_c_args(INTERP, NULL,
EXCEPTION_ATTRIB_NOT_FOUND, "No such attribute '%S'", key);
}
/*
=item C<PMC *get_attr_str(STRING *key)>
Get a PMC value for an attribute by string name.
=over
=item results
Retrieves the return signature, an array of PMCs.
=item arg_flags
Retrieves the flags for the call signature arguments, an array of
integers.
=item return_flags
Retrieves the flags for the call signature return arguments, an array of
integers.
=item named
Retrieves the hash of named arguments.
=item caller_ctx
return Caller Context
=item lex_pad
return LexPad
=item outer_ctx
return Outer Context
=item current_sub
return current Sub
=item handlers
return list of ExceptioHandlers
=item current_cont
return current Continuation
=item current_namespace
return current Namespace
=back
=cut
*/
VTABLE PMC *get_attr_str(STRING *key) {
PMC *value = PMCNULL;
INTVAL hll;
if (STRING_equal(INTERP, key, CONST_STRING(INTERP, "named")))
value = get_named_names(INTERP, SELF);
else if (STRING_equal(INTERP, key, CONST_STRING(INTERP, "arg_flags")))
GET_ATTR_arg_flags(INTERP, SELF, value);
else if (STRING_equal(INTERP, key, CONST_STRING(INTERP, "return_flags")))
GET_ATTR_return_flags(INTERP, SELF, value);
else if (STRING_equal(INTERP, key, CONST_STRING(INTERP, "caller_ctx")))
GET_ATTR_caller_ctx(INTERP, SELF, value);
else if (STRING_equal(INTERP, key, CONST_STRING(INTERP, "lex_pad")))
GET_ATTR_lex_pad(INTERP, SELF, value);
else if (STRING_equal(INTERP, key, CONST_STRING(INTERP, "outer_ctx")))
GET_ATTR_outer_ctx(INTERP, SELF, value);