hyung-hwan/moo
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

added experimental code to support byte trailer of a pointer object. the main purpose is to embed byte codes into the back of the compiled method object.

Browse Source 
fixed buggy code using the freed pointer when reallocation has occurred - callers of clone_keyword(), clone_assignee(), clone_binsel()
This commit is contained in:
hyunghwan.chung 2015-07-01 15:01:39 +00:00
parent d6a9ca91fa
commit 60299cda5b
8 changed files with 723 additions and 80 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

391
stix/lib/Stix.st Normal file
View File

@ -0,0 +1,391 @@
#class Stix(nil)
{
#dcl(#class) sysdic.
#method(#class) yourself
{
^self.
}
#method yourself
{
^self.
}
#method(#class) dump
{
<primitive: 0>
}
#method dump
{
<primitive: 0>
}
#method(#class) new
{
<primitive: 1>
}
#method(#class) new: anInteger
{
<primitive: 2>
}
#method basicSize
{
<primitive: 3>
^0
}
#method basicAt: anInteger
{
<primitive: 4>
## self error: 'out of range'.
}
#method basicAt: anInteger put: anObject
{
<primitive: 5>
## self error: 'out of range'.
}
#method badReturnError
{
## TODO: implement this
}
#method mustBeBoolean
{
## TODO: implement this
}
#method doesNotUnderstand: aMessageSymbol
{
## TODO: implement this
}
#method error: anErrorString
{
anErrorString dump.
}
}
#class Object(Stix)
{
}
#class NilObject(Stix)
{
}
#class(#pointer) Class(Stix)
{
#dcl spec selfspec superclass subclasses name instvars classvars classinstvars instmthdic classmthdic.
}
#class Magnitude(Object)
{
}
#class Association(Magnitude)
{
#dcl key value.
}
#class Character(Magnitude)
{
}
#class Number(Magnitude)
{
#method add: aNumber
{
<primitive: 7>
}
#method + aNumber
{
<primitive: 7>
}
#method - aNumber
{
<primitive: 8>
}
#method * aNumber
{
<primitive: 8>
}
#method = aNumber
{
<primitive: 10>
}
#method < aNumber
{
<primitive: 11>
}
#method > aNumber
{
<primitive: 12>
}
}
#class SmallInteger(Number)
{
}
#class Boolean(Object)
{
}
#class True(Boolean)
{
#method ifTrue: trueBlock ifFalse: falseBlock
{
^trueBlock value.
}
#method ifTrue: trueBlock
{
^trueBlock value.
}
#method ifFalse: falseBlock
{
^nil.
}
}
#class False(Boolean)
{
#method ifTrue: trueBlock ifFalse: falseBlock
{
^falseBlock value.
}
#method ifTrue: trueBlock
{
^nil.
}
#method ifFalse: falseBlock
{
^falseBlock value.
}
}
#class Collection(Object)
{
}
#class(#byte) ByteArray(Collection)
{
#method at: anInteger
{
^self basicAt: anInteger.
}
#method at: anInteger put: aValue
{
^self basicAt: anInteger put: aValue.
}
}
#class(#pointer) Array(Collection)
{
#method at: anInteger
{
^self basicAt: anInteger.
}
#method at: anInteger put: aValue
{
^self basicAt: anInteger put: aValue.
}
}
#class(#character) String(Array)
{
}
#class(#character) Symbol(Array)
{
}
#class Set(Collection)
{
#dcl tally bucket.
}
#class SymbolSet(Set)
{
}
#class Dictionary(Set)
{
}
#class SystemDictionary(Dictionary)
{
}
#class MethodDictionary(Dictionary)
{
}
#class(#pointer) Context(Stix)
{
}
#class(#pointer) MethodContext(Context)
{
#dcl sender ip sp ntmprs method receiver home origin.
#method pc
{
^ip
}
#method pc: anInteger
{
ip := anInteger.
"sp := sp - 1." "whould this always work??? "
}
#method sp
{
^sp.
}
#method sp: anInteger
{
sp := anInteger.
}
#method pc: aPC sp: aSP
{
ip := aPC.
sp := aSP.
##sp := sp - 1.
}
}
#class(#pointer) BlockContext(Context)
{
#dcl caller ip sp ntmprs nargs source home origin.
#method value
{
<primitive: 6>
}
#method value: a
{
<primitive: 6>
}
#method value: a value: b
{
<primitive: 6>
}
#method value: a value: b value: c
{
<primitive: 6>
}
#method whileTrue: aBlock
{
## http://stackoverflow.com/questions/2500483/is-there-a-way-in-a-message-only-language-to-define-a-whiletrue-message-without
## ----------------------------------------------------------------------------
## ^(self value) ifTrue: [aBlock value. self whileTrue: aBlock].
## ----------------------------------------------------------------------------
## less block context before whileTrue: is recursively sent.
## whileTrue: is sent in a method context.
## (self value) ifFalse: [^nil].
## aBlock value.
## self whileTrue: aBlock.
## ----------------------------------------------------------------------------
## ----------------------------------------------------------------------------
| pc sp xsp |
sp := thisContext sp.
sp := sp - 1. "decrement sp by 1 becuase thisContext pushed above affects the sp method"
pc := thisContext pc.
self value ifFalse: [ ^nil "^self" ].
aBlock value.
##thisContext pc: pc - 3 sp: sp.
##thisContext pc: pc + 2 sp: sp.
thisContext pc: pc + 1 sp: sp.
## this +2 or - 3 above is dependent on the byte code instruction size used for 'store'
## +2 to skip STORE_INTO_TEMP(pc) and POP_STACKTOP.
## TODO: make it independent of the byte code size
## ----------------------------------------------------------------------------
## #<label>:
## thisContext pc: #<label> sp: sp.
##
## | pc |
## pc := thisContext pc.
## ^self value ifTrue: [aBlock value. thisContext pc: pc]
## ----------------------------------------------------------------------------
## self value ifTrue: [ aBlock value. thisContext restart. ].
}
#method pc
{
^ip
}
#method pc: anInteger
{
ip := anInteger.
}
#method sp
{
^sp
}
#method sp: anInteger
{
sp := anInteger.
}
#method restart
{
ip := source pc.
}
}
#class(#pointer) CompiledMethod(Object)
{
#dcl owner preamble ntmprs nargs code source.
}
#################################################################
## MAIN
#################################################################

65
stix/lib/comp.c
View File

@ -1844,7 +1844,7 @@ done:
return pos; return pos;
} }
static int clone_assignee (stix_t* stix, stix_ucs_t* name) static int clone_assignee (stix_t* stix, const stix_ucs_t* name, stix_size_t* offset)
{ {
int n; int n;
stix_size_t old_len; stix_size_t old_len;
@ -1854,11 +1854,12 @@ static int clone_assignee (stix_t* stix, stix_ucs_t* name)
if (n <= -1) return -1; if (n <= -1) return -1;
/* update the pointer to of the name. its length is the same. */ /* update the pointer to of the name. its length is the same. */
name->ptr = stix->c->mth.assignees.ptr + old_len; /*name->ptr = stix->c->mth.assignees.ptr + old_len;*/
*offset = old_len;
return 0; return 0;
} }
static int clone_binary_selector (stix_t* stix, stix_ucs_t* name) static int clone_binary_selector (stix_t* stix, const stix_ucs_t* name, stix_size_t* offset)
{ {
int n; int n;
stix_size_t old_len; stix_size_t old_len;
@ -1868,11 +1869,12 @@ static int clone_binary_selector (stix_t* stix, stix_ucs_t* name)
if (n <= -1) return -1; if (n <= -1) return -1;
/* update the pointer to of the name. its length is the same. */ /* update the pointer to of the name. its length is the same. */
name->ptr = stix->c->mth.binsels.ptr + old_len; /*name->ptr = stix->c->mth.binsels.ptr + old_len;*/
*offset = old_len;
return 0; return 0;
} }
static int clone_keyword (stix_t* stix, stix_ucs_t* name) static int clone_keyword (stix_t* stix, const stix_ucs_t* name, stix_size_t* offset)
{ {
int n; int n;
stix_size_t old_len; stix_size_t old_len;
@ -1882,7 +1884,8 @@ static int clone_keyword (stix_t* stix, stix_ucs_t* name)
if (n <= -1) return -1; if (n <= -1) return -1;
/* update the pointer to of the name. its length is the same. */ /* update the pointer to of the name. its length is the same. */
name->ptr = stix->c->mth.kwsels.ptr + old_len; /*name->ptr = stix->c->mth.kwsels.ptr + old_len;*/
*offset = old_len;
return 0; return 0;
} }
@ -3052,7 +3055,7 @@ static int compile_binary_message (stix_t* stix, int to_super)
stix_size_t index; stix_size_t index;
int to_super2; int to_super2;
stix_ucs_t binsel; stix_ucs_t binsel;
stix_size_t saved_binsels_len; stix_size_t saved_binsels_len, binsel_offset;
STIX_ASSERT (stix->c->tok.type == STIX_IOTOK_BINSEL); STIX_ASSERT (stix->c->tok.type == STIX_IOTOK_BINSEL);
@ -3061,7 +3064,7 @@ static int compile_binary_message (stix_t* stix, int to_super)
binsel = stix->c->tok.name; binsel = stix->c->tok.name;
saved_binsels_len = stix->c->mth.binsels.len; saved_binsels_len = stix->c->mth.binsels.len;
if (clone_binary_selector(stix, &binsel) <= -1) goto oops; if (clone_binary_selector(stix, &binsel, &binsel_offset) <= -1) goto oops;
GET_TOKEN (stix); GET_TOKEN (stix);
@ -3069,6 +3072,10 @@ static int compile_binary_message (stix_t* stix, int to_super)
if (stix->c->tok.type == STIX_IOTOK_IDENT && compile_unary_message(stix, to_super2) <= -1) goto oops; if (stix->c->tok.type == STIX_IOTOK_IDENT && compile_unary_message(stix, to_super2) <= -1) goto oops;
/* update the pointer to the cloned selector now
* to be free from reallocation risk for the recursive call
* to compile_expression_primary(). */
binsel.ptr = &stix->c->mth.binsels.ptr[binsel_offset];
if (add_symbol_literal(stix, &binsel, &index) <= -1 || if (add_symbol_literal(stix, &binsel, &index) <= -1 ||
emit_double_param_instruction(stix, send_message_cmd[to_super], 1, index) <= -1) goto oops; emit_double_param_instruction(stix, send_message_cmd[to_super], 1, index) <= -1) goto oops;
printf ("\tsend binary message %d [", (int)index); printf ("\tsend binary message %d [", (int)index);
@ -3098,6 +3105,7 @@ static int compile_keyword_message (stix_t* stix, int to_super)
stix_ucs_t kw, kwsel; stix_ucs_t kw, kwsel;
stix_ioloc_t saved_kwsel_loc; stix_ioloc_t saved_kwsel_loc;
stix_size_t saved_kwsel_len; stix_size_t saved_kwsel_len;
stix_size_t kw_offset;
stix_size_t nargs = 0; stix_size_t nargs = 0;
saved_kwsel_loc = stix->c->tok.loc; saved_kwsel_loc = stix->c->tok.loc;
@ -3106,7 +3114,7 @@ static int compile_keyword_message (stix_t* stix, int to_super)
do do
{ {
kw = stix->c->tok.name; kw = stix->c->tok.name;
if (clone_keyword(stix, &kw) <= -1) goto oops; if (clone_keyword(stix, &kw, &kw_offset) <= -1) goto oops;
GET_TOKEN (stix); GET_TOKEN (stix);
@ -3114,6 +3122,7 @@ static int compile_keyword_message (stix_t* stix, int to_super)
if (stix->c->tok.type == STIX_IOTOK_IDENT && compile_unary_message(stix, to_super2) <= -1) goto oops; if (stix->c->tok.type == STIX_IOTOK_IDENT && compile_unary_message(stix, to_super2) <= -1) goto oops;
if (stix->c->tok.type == STIX_IOTOK_BINSEL && compile_binary_message(stix, to_super2) <= -1) goto oops; if (stix->c->tok.type == STIX_IOTOK_BINSEL && compile_binary_message(stix, to_super2) <= -1) goto oops;
kw.ptr = &stix->c->mth.kwsels.ptr[kw_offset];
if (nargs >= MAX_CODE_NARGS) if (nargs >= MAX_CODE_NARGS)
{ {
/* 'kw' points to only one segment of the full keyword message. /* 'kw' points to only one segment of the full keyword message.
@ -3297,10 +3306,13 @@ static int compile_method_expression (stix_t* stix, int pop)
if (stix->c->tok.type == STIX_IOTOK_IDENT) if (stix->c->tok.type == STIX_IOTOK_IDENT)
{ {
stix_ioloc_t assignee_loc; stix_ioloc_t assignee_loc;
stix_size_t assignee_offset;
/* store the assignee name to the internal buffer /* store the assignee name to the internal buffer
* to make it valid after the token buffer has been overwritten */ * to make it valid after the token buffer has been overwritten */
assignee = stix->c->tok.name; assignee = stix->c->tok.name;
if (clone_assignee(stix, &assignee) <= -1) return -1;
if (clone_assignee(stix, &assignee, &assignee_offset) <= -1) return -1;
assignee_loc = stix->c->tok.loc; assignee_loc = stix->c->tok.loc;
@ -3316,8 +3328,16 @@ printf ("ASSIGNIUNG TO ....");
print_ucs (&assignee); print_ucs (&assignee);
printf ("\n"); printf ("\n");
if (compile_method_expression(stix, 0) <= -1 || if (compile_method_expression(stix, 0) <= -1) goto oops;
get_variable_info(stix, &assignee, &assignee_loc, &var) <= -1) goto oops;
/* compile_method_expression() is called after clone_assignee().
* clone_assignee() may reallocate a single buffer to hold
* a series of assigness names. the pointer based operation is
* fragile as it can change. use the offset of the cloned
* assignee to update the actual pointer after the recursive
* compile_method_expression() call */
assignee.ptr = &stix->c->mth.assignees.ptr[assignee_offset];
if (get_variable_info(stix, &assignee, &assignee_loc, &var) <= -1) goto oops;
switch (var.type) switch (var.type)
{ {
@ -3383,6 +3403,7 @@ printf ("\t%s_into_object %d\n", (pop? "pop":"store"), (int)index);
} }
else else
{ {
assignee.ptr = &stix->c->mth.assignees.ptr[assignee_offset];
if (compile_basic_expression(stix, &assignee, &assignee_loc) <= -1) goto oops; if (compile_basic_expression(stix, &assignee, &assignee_loc) <= -1) goto oops;
} }
} }
@ -3453,7 +3474,6 @@ if (n == 0) printf ("\tpop_stacktop\n");
} }
} }
static int compile_method_statements (stix_t* stix) static int compile_method_statements (stix_t* stix)
{ {
/* /*
@ -3498,7 +3518,11 @@ static int add_compiled_method (stix_t* stix)
{ {
stix_oop_t name; /* selector */ stix_oop_t name; /* selector */
stix_oop_method_t mth; /* method */ stix_oop_method_t mth; /* method */
#if defined(STIX_USE_OBJECT_TRAILER)
/* nothing extra */
#else
stix_oop_byte_t code; stix_oop_byte_t code;
#endif
stix_size_t tmp_count = 0; stix_size_t tmp_count = 0;
stix_size_t i; stix_size_t i;
stix_ooi_t preamble_code, preamble_index; stix_ooi_t preamble_code, preamble_index;
@ -3508,8 +3532,13 @@ static int add_compiled_method (stix_t* stix)
stix_pushtmp (stix, &name); tmp_count++; stix_pushtmp (stix, &name); tmp_count++;
/* The variadic data part passed to stix_instantiate() is not GC-safe */ /* The variadic data part passed to stix_instantiate() is not GC-safe */
#if defined(STIX_USE_OBJECT_TRAILER)
mth = (stix_oop_method_t)stix_instantiatewithtrailer (stix, stix->_method, stix->c->mth.literal_count, stix->c->mth.code.ptr, stix->c->mth.code.len);
#else
mth = (stix_oop_method_t)stix_instantiate (stix, stix->_method, STIX_NULL, stix->c->mth.literal_count); mth = (stix_oop_method_t)stix_instantiate (stix, stix->_method, STIX_NULL, stix->c->mth.literal_count);
#endif
if (!mth) goto oops; if (!mth) goto oops;
for (i = 0; i < stix->c->mth.literal_count; i++) for (i = 0; i < stix->c->mth.literal_count; i++)
{ {
/* let's do the variadic data initialization here */ /* let's do the variadic data initialization here */
@ -3517,9 +3546,13 @@ static int add_compiled_method (stix_t* stix)
} }
stix_pushtmp (stix, (stix_oop_t*)&mth); tmp_count++; stix_pushtmp (stix, (stix_oop_t*)&mth); tmp_count++;
#if defined(STIX_USE_OBJECT_TRAILER)
/* do nothing */
#else
code = (stix_oop_byte_t)stix_instantiate (stix, stix->_byte_array, stix->c->mth.code.ptr, stix->c->mth.code.len); code = (stix_oop_byte_t)stix_instantiate (stix, stix->_byte_array, stix->c->mth.code.ptr, stix->c->mth.code.len);
if (!code) goto oops; if (!code) goto oops;
stix_pushtmp (stix, (stix_oop_t*)&code); tmp_count++; stix_pushtmp (stix, (stix_oop_t*)&code); tmp_count++;
#endif
preamble_code = STIX_METHOD_PREAMBLE_NONE; preamble_code = STIX_METHOD_PREAMBLE_NONE;
preamble_index = 0; preamble_index = 0;
@ -3564,6 +3597,7 @@ static int add_compiled_method (stix_t* stix)
} }
} }
} }
/* TODO: check more special cases like 'return true' and encode it to this preamble */
} }
} }
else else
@ -3578,7 +3612,12 @@ static int add_compiled_method (stix_t* stix)
mth->preamble = STIX_OOP_FROM_SMINT(STIX_METHOD_MAKE_PREAMBLE(preamble_code, preamble_index)); mth->preamble = STIX_OOP_FROM_SMINT(STIX_METHOD_MAKE_PREAMBLE(preamble_code, preamble_index));
mth->tmpr_count = STIX_OOP_FROM_SMINT(stix->c->mth.tmpr_count); mth->tmpr_count = STIX_OOP_FROM_SMINT(stix->c->mth.tmpr_count);
mth->tmpr_nargs = STIX_OOP_FROM_SMINT(stix->c->mth.tmpr_nargs); mth->tmpr_nargs = STIX_OOP_FROM_SMINT(stix->c->mth.tmpr_nargs);
#if defined(STIX_USE_OBJECT_TRAILER)
/* do nothing */
#else
mth->code = code; mth->code = code;
#endif
/*TODO: preserve source??? mth->text = stix->c->mth.text /*TODO: preserve source??? mth->text = stix->c->mth.text
the compiler must collect all source method string collected so far. the compiler must collect all source method string collected so far.

34
stix/lib/exec.c
View File

@ -60,7 +60,6 @@
#define ACTIVE_STACK_ISEMPTY(stix) ((stix)->sp <= -1) #define ACTIVE_STACK_ISEMPTY(stix) ((stix)->sp <= -1)
#define SWITCH_ACTIVE_CONTEXT(stix,v_ctx) \ #define SWITCH_ACTIVE_CONTEXT(stix,v_ctx) \
do \ do \
{ \ { \
@ -68,11 +67,24 @@
STORE_ACTIVE_SP (stix); \ STORE_ACTIVE_SP (stix); \
(stix)->active_context = (v_ctx); \ (stix)->active_context = (v_ctx); \
(stix)->active_method = (stix_oop_method_t)(stix)->active_context->origin->method_or_nargs; \ (stix)->active_method = (stix_oop_method_t)(stix)->active_context->origin->method_or_nargs; \
(stix)->active_code = (stix)->active_method->code; \ SET_ACTIVE_METHOD_CODE(stix); \
LOAD_ACTIVE_IP (stix); \ LOAD_ACTIVE_IP (stix); \
LOAD_ACTIVE_SP (stix); \ LOAD_ACTIVE_SP (stix); \
} while (0) \ } while (0) \
#define FETCH_BYTE_CODE(stix) ((stix)->active_code[(stix)->ip++])
#define FETCH_BYTE_CODE_TO(stix, v_ooi) (v_ooi = FETCH_BYTE_CODE(stix))
#if (STIX_BCODE_LONG_PARAM_SIZE == 2)
#define FETCH_PARAM_CODE_TO(stix, v_ooi) \
do { \
v_ooi = FETCH_BYTE_CODE(stix); \
v_ooi = (v_ooi << 8) | FETCH_BYTE_CODE(stix); \
} while (0)
#else
#define FETCH_PARAM_CODE_TO(stix, v_ooi) (v_ooi = FETCH_BYTE_CODE(stix))
#endif
static STIX_INLINE int activate_new_method (stix_t* stix, stix_oop_method_t mth) static STIX_INLINE int activate_new_method (stix_t* stix, stix_oop_method_t mth)
{ {
stix_oop_context_t ctx; stix_oop_context_t ctx;
@ -863,24 +875,6 @@ static primitive_t primitives[] =
{ 1, primitive_integer_gt } /* 12 */ { 1, primitive_integer_gt } /* 12 */
}; };
#define FETCH_BYTE_CODE_TO(stix, v_ooi) (v_ooi = (stix)->active_code->slot[(stix)->ip++])
#if (STIX_BCODE_LONG_PARAM_SIZE == 2)
#define FETCH_PARAM_CODE_TO(stix, v_ooi) \
do { \
v_ooi = (stix)->active_code->slot[(stix)->ip++]; \
v_ooi = (v_ooi << 8) | (stix)->active_code->slot[stix->ip++]; \
} while (0)
#else /* STIX_BCODE_LONG_PARAM_SIZE == 2 */
#define FETCH_PARAM_CODE_TO(stix, v_ooi) (v_ooi = (stix)->active_code->slot[(stix)->ip++])
#endif /* STIX_BCODE_LONG_PARAM_SIZE == 2 */
int stix_execute (stix_t* stix) int stix_execute (stix_t* stix)
{ {
stix_byte_t bcode; stix_byte_t bcode;

62
stix/lib/gc.c
View File

@ -51,13 +51,6 @@ static void compact_symbol_table (stix_t* stix, stix_oop_t _nil)
STIX_ASSERT (stix->symtab->bucket->slot[index] != _nil); STIX_ASSERT (stix->symtab->bucket->slot[index] != _nil);
/*
{
sym = (stix_oop_char_t)buc->slot[index];
wprintf (L">> DISPOSING %d [%S] from the symbol table\n", (int)index, sym->slot);
}
*/
for (i = 0, x = index, y = index; i < bucket_size; i++) for (i = 0, x = index, y = index; i < bucket_size; i++)
{ {
y = (y + 1) % bucket_size; y = (y + 1) % bucket_size;
@ -96,7 +89,6 @@ stix_oop_t stix_moveoop (stix_t* stix, stix_oop_t oop)
if (!oop) return oop; if (!oop) return oop;
#endif #endif
STIX_ASSERT (STIX_OOP_IS_POINTER(oop)); STIX_ASSERT (STIX_OOP_IS_POINTER(oop));
/*if (STIX_OOP_IS_POINTER(oop)) return oop;*/ /*if (STIX_OOP_IS_POINTER(oop)) return oop;*/
@ -113,8 +105,39 @@ stix_oop_t stix_moveoop (stix_t* stix, stix_oop_t oop)
stix_oow_t nbytes_aligned; stix_oow_t nbytes_aligned;
stix_oop_t tmp; stix_oop_t tmp;
#if defined(STIX_USE_OBJECT_TRAILER)
if (STIX_OBJ_GET_FLAGS_TRAILER(oop))
{
stix_oow_t nbytes;
/* only an OOP object can have the trailer.
*
* | _flags |
* | _size | <-- if it's 3
* | _class |
* | X |
* | X |
* | X |
* | Y | <-- it may exist if EXTRA is set in _flags.
* | Z | <-- if TRAILER is set, it is the number of bytes in the trailer
* | | | | |
*/
STIX_ASSERT (STIX_OBJ_GET_FLAGS_TYPE(oop) == STIX_OBJ_TYPE_OOP);
STIX_ASSERT (STIX_OBJ_GET_FLAGS_UNIT(oop) == STIX_SIZEOF(stix_oow_t));
STIX_ASSERT (STIX_OBJ_GET_FLAGS_EXTRA(oop) == 0); /* no 'extra' for an OOP object */
nbytes = STIX_OBJ_BYTESOF(oop) + STIX_SIZEOF(stix_oow_t) + \
(stix_oow_t)((stix_oop_oop_t)oop)->slot[STIX_OBJ_GET_SIZE(oop)];
nbytes_aligned = STIX_ALIGN (nbytes, STIX_SIZEOF(stix_oop_t));
}
else
{
#endif
/* calculate the payload size in bytes */ /* calculate the payload size in bytes */
nbytes_aligned = STIX_ALIGN (STIX_OBJ_BYTESOF(oop), STIX_SIZEOF(stix_oop_t)); nbytes_aligned = STIX_ALIGN (STIX_OBJ_BYTESOF(oop), STIX_SIZEOF(stix_oop_t));
#if defined(STIX_USE_OBJECT_TRAILER)
}
#endif
/* allocate space in the new heap */ /* allocate space in the new heap */
tmp = stix_allocheapmem (stix, stix->newheap, STIX_SIZEOF(stix_obj_t) + nbytes_aligned); tmp = stix_allocheapmem (stix, stix->newheap, STIX_SIZEOF(stix_obj_t) + nbytes_aligned);
@ -154,7 +177,27 @@ static stix_uint8_t* scan_new_heap (stix_t* stix, stix_uint8_t* ptr)
stix_oop_t oop; stix_oop_t oop;
oop = (stix_oop_t)ptr; oop = (stix_oop_t)ptr;
#if defined(STIX_USE_OBJECT_TRAILER)
if (STIX_OBJ_GET_FLAGS_TRAILER(oop))
{
stix_oow_t nbytes;
STIX_ASSERT (STIX_OBJ_GET_FLAGS_TYPE(oop) == STIX_OBJ_TYPE_OOP);
STIX_ASSERT (STIX_OBJ_GET_FLAGS_UNIT(oop) == STIX_SIZEOF(stix_oow_t));
STIX_ASSERT (STIX_OBJ_GET_FLAGS_EXTRA(oop) == 0); /* no 'extra' for an OOP object */
nbytes = STIX_OBJ_BYTESOF(oop) + STIX_SIZEOF(stix_oow_t) + \
(stix_oow_t)((stix_oop_oop_t)oop)->slot[STIX_OBJ_GET_SIZE(oop)];
nbytes_aligned = STIX_ALIGN (nbytes, STIX_SIZEOF(stix_oop_t));
}
else
{
#endif
nbytes_aligned = STIX_ALIGN (STIX_OBJ_BYTESOF(oop), STIX_SIZEOF(stix_oop_t)); nbytes_aligned = STIX_ALIGN (STIX_OBJ_BYTESOF(oop), STIX_SIZEOF(stix_oop_t));
#if defined(STIX_USE_OBJECT_TRAILER)
}
#endif
STIX_OBJ_SET_CLASS (oop, stix_moveoop(stix, STIX_OBJ_GET_CLASS(oop))); STIX_OBJ_SET_CLASS (oop, stix_moveoop(stix, STIX_OBJ_GET_CLASS(oop)));
if (STIX_OBJ_GET_FLAGS_TYPE(oop) == STIX_OBJ_TYPE_OOP) if (STIX_OBJ_GET_FLAGS_TYPE(oop) == STIX_OBJ_TYPE_OOP)
@ -182,7 +225,6 @@ static stix_uint8_t* scan_new_heap (stix_t* stix, stix_uint8_t* ptr)
if (STIX_OOP_IS_POINTER(xtmp->slot[i])) if (STIX_OOP_IS_POINTER(xtmp->slot[i]))
xtmp->slot[i] = stix_moveoop (stix, xtmp->slot[i]); xtmp->slot[i] = stix_moveoop (stix, xtmp->slot[i]);
} }
} }
/*ptr = ptr + STIX_SIZEOF(stix_obj_t) + nbytes_aligned;*/ /*ptr = ptr + STIX_SIZEOF(stix_obj_t) + nbytes_aligned;*/
@ -255,7 +297,6 @@ void stix_gc (stix_t* stix)
stix->active_context = (stix_oop_context_t)stix_moveoop (stix, (stix_oop_t)stix->active_context); stix->active_context = (stix_oop_context_t)stix_moveoop (stix, (stix_oop_t)stix->active_context);
stix->active_method = (stix_oop_method_t)stix_moveoop (stix, (stix_oop_t)stix->active_method); stix->active_method = (stix_oop_method_t)stix_moveoop (stix, (stix_oop_t)stix->active_method);
stix->active_code = (stix_oop_byte_t)stix_moveoop (stix, (stix_oop_t)stix->active_code);
for (cb = stix->cblist; cb; cb = cb->next) for (cb = stix->cblist; cb; cb = cb->next)
{ {
@ -309,6 +350,7 @@ for (index = 0; index < buc->size; index++)
printf ("===========================\n"); printf ("===========================\n");
} }
*/ */
if (stix->active_method) SET_ACTIVE_METHOD_CODE (stix); /* update stix->active_code */
} }

2
stix/lib/ignite.c
View File

@ -253,7 +253,7 @@ int stix_ignite (stix_t* stix)
stix->_nil = stix_allocbytes (stix, STIX_SIZEOF(stix_obj_t)); stix->_nil = stix_allocbytes (stix, STIX_SIZEOF(stix_obj_t));
if (!stix->_nil) return -1; if (!stix->_nil) return -1;
stix->_nil->_flags = STIX_OBJ_MAKE_FLAGS (STIX_OBJ_TYPE_OOP, STIX_SIZEOF(stix_oop_t), 0, 1, 0); stix->_nil->_flags = STIX_OBJ_MAKE_FLAGS (STIX_OBJ_TYPE_OOP, STIX_SIZEOF(stix_oop_t), 0, 1, 0, 0);
stix->_nil->_size = 0; stix->_nil->_size = 0;
if (ignite_1(stix) <= -1 || ignite_2(stix) <= -1 || ignite_3(stix)) return -1; if (ignite_1(stix) <= -1 || ignite_2(stix) <= -1 || ignite_3(stix)) return -1;

122
stix/lib/obj.c
View File

@ -64,7 +64,7 @@ stix_oop_t stix_allocoopobj (stix_t* stix, stix_oow_t size)
hdr = stix_allocbytes (stix, STIX_SIZEOF(stix_obj_t) + nbytes_aligned); hdr = stix_allocbytes (stix, STIX_SIZEOF(stix_obj_t) + nbytes_aligned);
if (!hdr) return STIX_NULL; if (!hdr) return STIX_NULL;
hdr->_flags = STIX_OBJ_MAKE_FLAGS(STIX_OBJ_TYPE_OOP, STIX_SIZEOF(stix_oop_t), 0, 0, 0); hdr->_flags = STIX_OBJ_MAKE_FLAGS(STIX_OBJ_TYPE_OOP, STIX_SIZEOF(stix_oop_t), 0, 0, 0, 0);
STIX_OBJ_SET_SIZE (hdr, size); STIX_OBJ_SET_SIZE (hdr, size);
STIX_OBJ_SET_CLASS (hdr, stix->_nil); STIX_OBJ_SET_CLASS (hdr, stix->_nil);
@ -73,6 +73,42 @@ stix_oop_t stix_allocoopobj (stix_t* stix, stix_oow_t size)
return (stix_oop_t)hdr; return (stix_oop_t)hdr;
} }
#if defined(STIX_USE_OBJECT_TRAILER)
stix_oop_t stix_allocoopobjwithtrailer (stix_t* stix, stix_oow_t size, const stix_byte_t* bptr, stix_oow_t blen)
{
stix_oop_oop_t hdr;
stix_oow_t nbytes, nbytes_aligned;
stix_oow_t i;
/* +1 for the trailer size of the stix_oow_t type */
nbytes = (size + 1) * STIX_SIZEOF(stix_oop_t) + blen;
nbytes_aligned = STIX_ALIGN(nbytes, STIX_SIZEOF(stix_oop_t));
hdr = stix_allocbytes (stix, STIX_SIZEOF(stix_obj_t) + nbytes_aligned);
if (!hdr) return STIX_NULL;
hdr->_flags = STIX_OBJ_MAKE_FLAGS(STIX_OBJ_TYPE_OOP, STIX_SIZEOF(stix_oop_t), 0, 0, 0, 1);
STIX_OBJ_SET_SIZE (hdr, size);
STIX_OBJ_SET_CLASS (hdr, stix->_nil);
for (i = 0; i < size; i++) hdr->slot[i] = stix->_nil;
/* [NOTE] this is not converted to a SmallInteger object */
hdr->slot[size] = (stix_oop_t)blen;
if (bptr)
{
STIX_MEMCPY (&hdr->slot[size + 1], bptr, blen);
}
else
{
STIX_MEMSET (&hdr->slot[size + 1], 0, blen);
}
return (stix_oop_t)hdr;
}
#endif
static stix_oop_t alloc_numeric_array (stix_t* stix, const void* ptr, stix_oow_t len, stix_obj_type_t type, stix_oow_t unit, int extra) static stix_oop_t alloc_numeric_array (stix_t* stix, const void* ptr, stix_oow_t len, stix_obj_type_t type, stix_oow_t unit, int extra)
{ {
/* allocate a variable object */ /* allocate a variable object */
@ -94,7 +130,7 @@ static stix_oop_t alloc_numeric_array (stix_t* stix, const void* ptr, stix_oow_t
hdr = stix_allocbytes (stix, STIX_SIZEOF(stix_obj_t) + nbytes_aligned); hdr = stix_allocbytes (stix, STIX_SIZEOF(stix_obj_t) + nbytes_aligned);
if (!hdr) return STIX_NULL; if (!hdr) return STIX_NULL;
hdr->_flags = STIX_OBJ_MAKE_FLAGS(type, unit, extra, 0, 0); hdr->_flags = STIX_OBJ_MAKE_FLAGS(type, unit, extra, 0, 0, 0);
hdr->_size = len; hdr->_size = len;
STIX_OBJ_SET_SIZE (hdr, len); STIX_OBJ_SET_SIZE (hdr, len);
STIX_OBJ_SET_CLASS (hdr, stix->_nil); STIX_OBJ_SET_CLASS (hdr, stix->_nil);
@ -119,6 +155,14 @@ stix_oop_t stix_alloccharobj (stix_t* stix, const stix_uch_t* ptr, stix_oow_t le
return alloc_numeric_array (stix, ptr, len, STIX_OBJ_TYPE_CHAR, STIX_SIZEOF(stix_uch_t), 1); return alloc_numeric_array (stix, ptr, len, STIX_OBJ_TYPE_CHAR, STIX_SIZEOF(stix_uch_t), 1);
} }
/*
TODO: extra bits must be set ...
stix_oop_t stix_allocmbcharobj (stix_t* stix, const stix_uch_t* ptr, stix_oow_t len)
{
return alloc_numeric_array (stix, ptr, len, STIX_OBJ_TYPE_MBCHAR, STIX_SIZEOF(stix_uch_t), 1);
}
*/
stix_oop_t stix_allocbyteobj (stix_t* stix, const stix_byte_t* ptr, stix_oow_t len) stix_oop_t stix_allocbyteobj (stix_t* stix, const stix_byte_t* ptr, stix_oow_t len)
{ {
return alloc_numeric_array (stix, ptr, len, STIX_OBJ_TYPE_BYTE, STIX_SIZEOF(stix_byte_t), 0); return alloc_numeric_array (stix, ptr, len, STIX_OBJ_TYPE_BYTE, STIX_SIZEOF(stix_byte_t), 0);
@ -225,3 +269,77 @@ einval:
stix->errnum = STIX_EINVAL; stix->errnum = STIX_EINVAL;
return STIX_NULL; return STIX_NULL;
} }
#if defined(STIX_USE_OBJECT_TRAILER)
stix_oop_t stix_instantiatewithtrailer (stix_t* stix, stix_oop_t _class, stix_oow_t vlen, const stix_byte_t* tptr, stix_oow_t tlen)
{
stix_oop_t oop;
stix_oow_t spec;
stix_oow_t named_instvar;
stix_obj_type_t indexed_type;
stix_oow_t tmp_count = 0;
STIX_ASSERT (stix->_nil != STIX_NULL);
STIX_ASSERT (STIX_OOP_IS_POINTER(_class));
STIX_ASSERT (STIX_CLASSOF(stix, _class) == stix->_class);
STIX_ASSERT (STIX_OOP_IS_SMINT(((stix_oop_class_t)_class)->spec));
spec = STIX_OOP_TO_SMINT(((stix_oop_class_t)_class)->spec);
named_instvar = STIX_CLASS_SPEC_NAMED_INSTVAR(spec); /* size of the named_instvar part */
if (STIX_CLASS_SPEC_IS_INDEXED(spec))
{
indexed_type = STIX_CLASS_SPEC_INDEXED_TYPE(spec);
if (indexed_type == STIX_OBJ_TYPE_OOP)
{
if (named_instvar > STIX_MAX_NAMED_INSTVARS ||
vlen > STIX_MAX_INDEXED_INSTVARS(named_instvar))
{
goto einval;
}
}
else
{
/* not a class for an OOP object */
goto einval;
}
}
else
{
/* named instance variables only. treat it as if it is an
* indexable class with no variable data */
indexed_type = STIX_OBJ_TYPE_OOP;
vlen = 0;
if (named_instvar > STIX_MAX_NAMED_INSTVARS) goto einval;
}
stix_pushtmp (stix, &_class); tmp_count++;
switch (indexed_type)
{
case STIX_OBJ_TYPE_OOP:
oop = stix_allocoopobjwithtrailer(stix, named_instvar + vlen, tptr, tlen);
break;
default:
stix->errnum = STIX_EINTERN;
oop = STIX_NULL;
break;
}
if (oop) STIX_OBJ_SET_CLASS (oop, _class);
stix_poptmps (stix, tmp_count);
return oop;
einval:
STIX_ASSERT (tmp_count <= 0);
stix->errnum = STIX_EINVAL;
return STIX_NULL;
}
#endif

34
stix/lib/stix-prv.h
View File

@ -39,6 +39,11 @@
/* define this to generate CTXTEMVAR instructions */ /* define this to generate CTXTEMVAR instructions */
#define STIX_USE_CTXTEMPVAR #define STIX_USE_CTXTEMPVAR
/* define this to allow an pointer(OOP) object to have trailing bytes
* this is used to embed bytes codes into the back of a compile method
* object instead of putting in in a separate byte array. */
#define STIX_USE_OBJECT_TRAILER
/* this is for gc debugging */ /* this is for gc debugging */
#define STIX_DEBUG_GC_001 #define STIX_DEBUG_GC_001
@ -469,6 +474,14 @@ struct stix_compiler_t
#endif #endif
#if defined(STIX_USE_OBJECT_TRAILER)
/* let it point to the trailer of the method */
# define SET_ACTIVE_METHOD_CODE(stix) ((stix)->active_code = (stix_byte_t*)&(stix)->active_method->slot[STIX_OBJ_GET_SIZE((stix)->active_method) + 1 - STIX_METHOD_NAMED_INSTVARS])
#else
/* let it point to the payload of the code byte array */
# define SET_ACTIVE_METHOD_CODE(stix) ((stix)->active_code = (stix)->active_method->code->slot)
#endif
#if defined(STIX_BCODE_LONG_PARAM_SIZE) && (STIX_BCODE_LONG_PARAM_SIZE == 1) #if defined(STIX_BCODE_LONG_PARAM_SIZE) && (STIX_BCODE_LONG_PARAM_SIZE == 1)
# define MAX_CODE_INDEX (0xFFu) # define MAX_CODE_INDEX (0xFFu)
# define MAX_CODE_NTMPRS (0xFFu) # define MAX_CODE_NTMPRS (0xFFu)
@ -660,8 +673,6 @@ enum stix_bcode_t
BCODE_JUMP_IF_FALSE_2 = 0x52, /* 82 */ BCODE_JUMP_IF_FALSE_2 = 0x52, /* 82 */
BCODE_JUMP_IF_FALSE_3 = 0x53, /* 83 */ BCODE_JUMP_IF_FALSE_3 = 0x53, /* 83 */
BCODE_STORE_INTO_CTXTEMPVAR_0 = 0x58, /* 88 */ BCODE_STORE_INTO_CTXTEMPVAR_0 = 0x58, /* 88 */
BCODE_STORE_INTO_CTXTEMPVAR_1 = 0x59, /* 89 */ BCODE_STORE_INTO_CTXTEMPVAR_1 = 0x59, /* 89 */
BCODE_STORE_INTO_CTXTEMPVAR_2 = 0x5A, /* 90 */ BCODE_STORE_INTO_CTXTEMPVAR_2 = 0x5A, /* 90 */
@ -849,6 +860,15 @@ stix_oop_t stix_allocoopobj (
stix_oow_t size stix_oow_t size
); );
#if defined(STIX_USE_OBJECT_TRAILER)
stix_oop_t stix_allocoopobjwithtrailer (
stix_t* stix,
stix_oow_t size,
const stix_byte_t* tptr,
stix_oow_t tlen
);
#endif
stix_oop_t stix_alloccharobj ( stix_oop_t stix_alloccharobj (
stix_t* stix, stix_t* stix,
const stix_uch_t* ptr, const stix_uch_t* ptr,
@ -867,6 +887,16 @@ stix_oop_t stix_allocwordobj (
stix_oow_t len stix_oow_t len
); );
#if defined(STIX_USE_OBJECT_TRAILER)
stix_oop_t stix_instantiatewithtrailer (
stix_t* stix,
stix_oop_t _class,
stix_oow_t vlen,
const stix_byte_t* tptr,
stix_oow_t tlen
);
#endif
/* ========================================================================= */ /* ========================================================================= */
/* sym.c */ /* sym.c */
/* ========================================================================= */ /* ========================================================================= */

75
stix/lib/stix.h
View File

@ -405,11 +405,15 @@ typedef enum stix_obj_type_t stix_obj_type_t;
* STIX_OBJ_TYPE_BYTE, STIX_OBJ_TYPE_WORD * STIX_OBJ_TYPE_BYTE, STIX_OBJ_TYPE_WORD
* unit: the size of a payload item in bytes. * unit: the size of a payload item in bytes.
* extra: 0 or 1. 1 indicates that the payload contains 1 more * extra: 0 or 1. 1 indicates that the payload contains 1 more
* item than the value of the size field. mostly used for a * item than the value of the size field. used for a
* terminating null in a variable-char object. * terminating null in a variable-char object. internel
* use only.
* kernel: 0 or 1. indicates that the object is a kernel object. * kernel: 0 or 1. indicates that the object is a kernel object.
* VM disallows layout changes of a kernel object. * VM disallows layout changes of a kernel object.
* moved: 0 or 1. used by GC. * internal use only.
* moved: 0 or 1. used by GC. internal use only.
* trailer: 0 or 1. indicates that there are trailing bytes
* after the object payload. internal use only.
* *
* _size: the number of payload items in an object. * _size: the number of payload items in an object.
* it doesn't include the header size. * it doesn't include the header size.
@ -418,6 +422,10 @@ typedef enum stix_obj_type_t stix_obj_type_t;
* with this fomula: * with this fomula:
* sizeof(stix_obj_t) + ALIGN((size + extra) * unit), sizeof(stix_oop_t)) * sizeof(stix_obj_t) + ALIGN((size + extra) * unit), sizeof(stix_oop_t))
* *
* If the type is known to be not STIX_OBJ_TYPE_CHAR, you can assume that
* 'extra' is 0. So you can simplify the fomula in such a context.
* sizeof(stix_obj_t) + ALIGN(size * unit), sizeof(stix_oop_t))
*
* The ALIGN() macro is used above since allocation adjusts the payload * The ALIGN() macro is used above since allocation adjusts the payload
* size to a multiple of sizeof(stix_oop_t). it assumes that sizeof(stix_obj_t) * size to a multiple of sizeof(stix_oop_t). it assumes that sizeof(stix_obj_t)
* is a multiple of sizeof(stix_oop_t). See the STIX_BYTESOF() macro. * is a multiple of sizeof(stix_oop_t). See the STIX_BYTESOF() macro.
@ -437,18 +445,21 @@ typedef enum stix_obj_type_t stix_obj_type_t;
#define STIX_OBJ_FLAGS_EXTRA_BITS 1 #define STIX_OBJ_FLAGS_EXTRA_BITS 1
#define STIX_OBJ_FLAGS_KERNEL_BITS 2 #define STIX_OBJ_FLAGS_KERNEL_BITS 2
#define STIX_OBJ_FLAGS_MOVED_BITS 1 #define STIX_OBJ_FLAGS_MOVED_BITS 1
#define STIX_OBJ_FLAGS_TRAILER_BITS 1
#define STIX_OBJ_GET_FLAGS_TYPE(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_UNIT_BITS + STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS), STIX_OBJ_FLAGS_TYPE_BITS) #define STIX_OBJ_GET_FLAGS_TYPE(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_UNIT_BITS + STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS), STIX_OBJ_FLAGS_TYPE_BITS)
#define STIX_OBJ_GET_FLAGS_UNIT(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS), STIX_OBJ_FLAGS_UNIT_BITS) #define STIX_OBJ_GET_FLAGS_UNIT(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS), STIX_OBJ_FLAGS_UNIT_BITS)
#define STIX_OBJ_GET_FLAGS_EXTRA(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS), STIX_OBJ_FLAGS_EXTRA_BITS) #define STIX_OBJ_GET_FLAGS_EXTRA(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS), STIX_OBJ_FLAGS_EXTRA_BITS)
#define STIX_OBJ_GET_FLAGS_KERNEL(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_MOVED_BITS), STIX_OBJ_FLAGS_KERNEL_BITS) #define STIX_OBJ_GET_FLAGS_KERNEL(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS), STIX_OBJ_FLAGS_KERNEL_BITS)
#define STIX_OBJ_GET_FLAGS_MOVED(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, 0, STIX_OBJ_FLAGS_MOVED_BITS) #define STIX_OBJ_GET_FLAGS_MOVED(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_TRAILER_BITS), STIX_OBJ_FLAGS_MOVED_BITS)
#define STIX_OBJ_GET_FLAGS_TRAILER(oop) STIX_GETBITS(stix_oow_t, (oop)->_flags, 0, STIX_OBJ_FLAGS_TRAILER_BITS)
#define STIX_OBJ_SET_FLAGS_TYPE(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_UNIT_BITS + STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS), STIX_OBJ_FLAGS_TYPE_BITS, v) #define STIX_OBJ_SET_FLAGS_TYPE(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_UNIT_BITS + STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS), STIX_OBJ_FLAGS_TYPE_BITS, v)
#define STIX_OBJ_SET_FLAGS_UNIT(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS), STIX_OBJ_FLAGS_UNIT_BITS, v) #define STIX_OBJ_SET_FLAGS_UNIT(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS), STIX_OBJ_FLAGS_UNIT_BITS, v)
#define STIX_OBJ_SET_FLAGS_EXTRA(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS), STIX_OBJ_FLAGS_EXTRA_BITS, v) #define STIX_OBJ_SET_FLAGS_EXTRA(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS), STIX_OBJ_FLAGS_EXTRA_BITS, v)
#define STIX_OBJ_SET_FLAGS_KERNEL(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_MOVED_BITS), STIX_OBJ_FLAGS_KERNEL_BITS, v) #define STIX_OBJ_SET_FLAGS_KERNEL(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS), STIX_OBJ_FLAGS_KERNEL_BITS, v)
#define STIX_OBJ_SET_FLAGS_MOVED(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, 0, STIX_OBJ_FLAGS_MOVED_BITS, v) #define STIX_OBJ_SET_FLAGS_MOVED(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, (STIX_OBJ_FLAGS_TRAILER_BITS), STIX_OBJ_FLAGS_MOVED_BITS, v)
#define STIX_OBJ_SET_FLAGS_TRAILER(oop,v) STIX_SETBITS(stix_oow_t, (oop)->_flags, 0, STIX_OBJ_FLAGS_TRAILER_BITS, v)
#define STIX_OBJ_GET_SIZE(oop) ((oop)->_size) #define STIX_OBJ_GET_SIZE(oop) ((oop)->_size)
#define STIX_OBJ_GET_CLASS(oop) ((oop)->_class) #define STIX_OBJ_GET_CLASS(oop) ((oop)->_class)
@ -456,17 +467,19 @@ typedef enum stix_obj_type_t stix_obj_type_t;
#define STIX_OBJ_SET_SIZE(oop,v) ((oop)->_size = (v)) #define STIX_OBJ_SET_SIZE(oop,v) ((oop)->_size = (v))
#define STIX_OBJ_SET_CLASS(oop,c) ((oop)->_class = (c)) #define STIX_OBJ_SET_CLASS(oop,c) ((oop)->_class = (c))
/* [NOTE] this macro doesn't include the size of the trailer */
#define STIX_OBJ_BYTESOF(oop) ((STIX_OBJ_GET_SIZE(oop) + STIX_OBJ_GET_FLAGS_EXTRA(oop)) * STIX_OBJ_GET_FLAGS_UNIT(oop)) #define STIX_OBJ_BYTESOF(oop) ((STIX_OBJ_GET_SIZE(oop) + STIX_OBJ_GET_FLAGS_EXTRA(oop)) * STIX_OBJ_GET_FLAGS_UNIT(oop))
/* this macro doesn't check the range of the actual value. /* [NOTE] this macro doesn't check the range of the actual value.
* make sure that the value of each bit fields given fall within the number * make sure that the value of each bit fields given falls within the
* of defined bits */ * possible range of the defined bits */
#define STIX_OBJ_MAKE_FLAGS(t,u,e,k,m) ( \ #define STIX_OBJ_MAKE_FLAGS(t,u,e,k,m,r) ( \
(((stix_oow_t)(t)) << (STIX_OBJ_FLAGS_UNIT_BITS + STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS)) | \ (((stix_oow_t)(t)) << (STIX_OBJ_FLAGS_UNIT_BITS + STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS)) | \
(((stix_oow_t)(u)) << (STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS)) | \ (((stix_oow_t)(u)) << (STIX_OBJ_FLAGS_EXTRA_BITS + STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS)) | \
(((stix_oow_t)(e)) << (STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS)) | \ (((stix_oow_t)(e)) << (STIX_OBJ_FLAGS_KERNEL_BITS + STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS)) | \
(((stix_oow_t)(k)) << (STIX_OBJ_FLAGS_MOVED_BITS)) | \ (((stix_oow_t)(k)) << (STIX_OBJ_FLAGS_MOVED_BITS + STIX_OBJ_FLAGS_TRAILER_BITS)) | \
(((stix_oow_t)(m)) << 0) \ (((stix_oow_t)(m)) << (STIX_OBJ_FLAGS_TRAILER_BITS)) | \
(((stix_oow_t)(r)) << 0) \
) )
#define STIX_OBJ_HEADER \ #define STIX_OBJ_HEADER \
@ -503,6 +516,13 @@ struct stix_obj_word_t
stix_oow_t slot[1]; stix_oow_t slot[1];
}; };
typedef struct stix_trailer_t stix_trailer_t;
struct stix_trailer_t
{
stix_oow_t size;
stix_byte_t slot[1];
};
#define STIX_SET_NAMED_INSTVARS 2 #define STIX_SET_NAMED_INSTVARS 2
typedef struct stix_set_t stix_set_t; typedef struct stix_set_t stix_set_t;
typedef struct stix_set_t* stix_oop_set_t; typedef struct stix_set_t* stix_oop_set_t;
@ -554,7 +574,11 @@ struct stix_association_t
stix_oop_t value; stix_oop_t value;
}; };
#if defined(STIX_USE_OBJECT_TRAILER)
# define STIX_METHOD_NAMED_INSTVARS 5
#else
# define STIX_METHOD_NAMED_INSTVARS 6 # define STIX_METHOD_NAMED_INSTVARS 6
#endif
typedef struct stix_method_t stix_method_t; typedef struct stix_method_t stix_method_t;
typedef struct stix_method_t* stix_oop_method_t; typedef struct stix_method_t* stix_oop_method_t;
struct stix_method_t struct stix_method_t
@ -572,7 +596,12 @@ struct stix_method_t
/* number of arguments in temporaries */ /* number of arguments in temporaries */
stix_oop_t tmpr_nargs; /* SmallInteger */ stix_oop_t tmpr_nargs; /* SmallInteger */
#if defined(STIX_USE_OBJECT_TRAILER)
/* no code field is used */
#else
stix_oop_byte_t code; /* ByteArray */ stix_oop_byte_t code; /* ByteArray */
#endif
stix_oop_t source; /* TODO: what should I put? */ stix_oop_t source; /* TODO: what should I put? */
/* == variable indexed part == */ /* == variable indexed part == */
@ -753,7 +782,7 @@ struct stix_t
/* == EXECUTION REGISTERS == */ /* == EXECUTION REGISTERS == */
stix_oop_context_t active_context; stix_oop_context_t active_context;
stix_oop_method_t active_method; stix_oop_method_t active_method;
stix_oop_byte_t active_code; stix_byte_t* active_code;
stix_ooi_t sp; stix_ooi_t sp;
stix_ooi_t ip; stix_ooi_t ip;
/* == END EXECUTION REGISTERS == */ /* == END EXECUTION REGISTERS == */