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enhanced compile_if_expression() not to eliminate blocks containing one or more labels

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This commit is contained in:
hyunghwan.chung 2019-08-07 05:33:35 +00:00
parent b2ac09072b
commit 3e1aded8a8
14 changed files with 143 additions and 107 deletions
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2
moo/bin/main.c
View File

@ -94,7 +94,7 @@ int main (int argc, char* argv[])
{ ":input-charset", '\0' }, { ":input-charset", '\0' },
{ ":log-charset", '\0' }, { ":log-charset", '\0' },
#if defined(MOO_BUILD_DEBUG) #if defined(MOO_BUILD_DEBUG)
{ ":debug", '\0' }, /* NOTE: there is no short option for --debug */ { ":debug", '\0' }, /* [NOTE] there is no short option for --debug */
#endif #endif
{ MOO_NULL, '\0' } { MOO_NULL, '\0' }
}; };

2
moo/kernel/Except.moo
View File

@ -250,7 +250,7 @@ extend MethodContext
if (self isExceptionContext) if (self isExceptionContext)
{ {
/* NOTE: the following loop scans all parameters to the on:do: method. /* [NOTE] the following loop scans all parameters to the on:do: method.
* if the on:do: method contains local temporary variables, * if the on:do: method contains local temporary variables,
* you must change this function to skip scanning local variables. * you must change this function to skip scanning local variables.
* the current on:do: method has 1 local variable declared. * the current on:do: method has 1 local variable declared.

4
moo/kernel/generr.moo
View File

@ -109,8 +109,8 @@ class MyObject(Object)
'too many arguments' 'too many arguments'
'too many block temporaries' 'too many block temporaries'
'too many block arguments' 'too many block arguments'
'too large block' 'array expression too large'
'too large array expression' 'instruction data too large'
'wrong primitive function number' 'wrong primitive function number'
'wrong primitive function identifier' 'wrong primitive function identifier'
'wrong primitive function argument definition' 'wrong primitive function argument definition'

162
moo/lib/comp.c
View File

@ -908,7 +908,7 @@ static void fini_oow_pool (moo_t* moo, moo_oow_pool_t* pool)
* to reuse it */ * to reuse it */
} }
static int add_to_oow_pool (moo_t* moo, moo_oow_pool_t* pool, moo_oow_t v) static int add_to_oow_pool (moo_t* moo, moo_oow_pool_t* pool, moo_oow_t v, const moo_ioloc_t* loc)
{ {
moo_oow_t idx; moo_oow_t idx;
@ -925,7 +925,8 @@ static int add_to_oow_pool (moo_t* moo, moo_oow_pool_t* pool, moo_oow_t v)
pool->tail = chunk; pool->tail = chunk;
} }
pool->tail->buf[idx] = v; pool->tail->buf[idx].v = v;
pool->tail->buf[idx].loc = *loc;
pool->count++; pool->count++;
return 0; return 0;
@ -2703,7 +2704,7 @@ static MOO_INLINE int emit_backward_jump_instruction (moo_t* moo, int cmd, moo_o
return emit_single_param_instruction(moo, cmd, offset + adj, srcloc); return emit_single_param_instruction(moo, cmd, offset + adj, srcloc);
} }
static int patch_forward_jump_instruction (moo_t* moo, moo_oow_t jip, moo_oow_t jt, moo_ioloc_t* errloc) static int patch_forward_jump_instruction (moo_t* moo, moo_oow_t jip, moo_oow_t jt)
{ {
moo_cunit_class_t* cc = (moo_cunit_class_t*)moo->c->cunit; moo_cunit_class_t* cc = (moo_cunit_class_t*)moo->c->cunit;
moo_oow_t code_size; moo_oow_t code_size;
@ -2739,8 +2740,7 @@ static int patch_forward_jump_instruction (moo_t* moo, moo_oow_t jip, moo_oow_t
if (code_size > MAX_CODE_JUMP * 2) if (code_size > MAX_CODE_JUMP * 2)
{ {
/* TODO: change error code or get it as a parameter */ moo_seterrnum (moo, MOO_ERANGE);
moo_setsynerr (moo, MOO_SYNERR_BLKFLOOD, errloc, MOO_NULL);
return -1; return -1;
} }
@ -2796,8 +2796,12 @@ static int update_loop_jumps (moo_t* moo, moo_oow_pool_t* pool, moo_oow_t jt)
{ {
for (j = 0; j < MOO_COUNTOF(pool->static_chunk.buf) && i < pool->count; j++) for (j = 0; j < MOO_COUNTOF(pool->static_chunk.buf) && i < pool->count; j++)
{ {
if (chunk->buf[j] != INVALID_IP && if (chunk->buf[j].v != INVALID_IP &&
patch_forward_jump_instruction(moo, chunk->buf[j], jt, MOO_NULL) <= -1) return -1; patch_forward_jump_instruction(moo, chunk->buf[j].v, jt) <= -1)
{
moo_setsynerrbfmt (moo, MOO_SYNERR_INSTFLOOD, &chunk->buf[j].loc, MOO_NULL, "unable to patch conditional loop jump");
return -1;
}
i++; i++;
} }
} }
@ -2815,17 +2819,17 @@ static void adjust_loop_jumps_for_elimination (moo_t* moo, moo_oow_pool_t* pool,
{ {
for (j = 0; j < MOO_COUNTOF(pool->static_chunk.buf) && i < pool->count; j++) for (j = 0; j < MOO_COUNTOF(pool->static_chunk.buf) && i < pool->count; j++)
{ {
if (chunk->buf[j] != INVALID_IP) if (chunk->buf[j].v != INVALID_IP)
{ {
if (chunk->buf[j] >= start && chunk->buf[j] <= end) if (chunk->buf[j].v >= start && chunk->buf[j].v <= end)
{ {
/* invalidate the instruction position */ /* invalidate the instruction position */
chunk->buf[j] = INVALID_IP; chunk->buf[j].v = INVALID_IP;
} }
else if (chunk->buf[j] > end && chunk->buf[j] < ((moo_cunit_class_t*)moo->c->cunit)->mth.code.len) else if (chunk->buf[j].v > end && chunk->buf[j].v < ((moo_cunit_class_t*)moo->c->cunit)->mth.code.len)
{ {
/* decrement the instruction position */ /* decrement the instruction position */
chunk->buf[j] -= end - start + 1; chunk->buf[j].v -= end - start + 1;
} }
} }
i++; i++;
@ -2930,7 +2934,7 @@ static MOO_INLINE void pop_loop (moo_t* moo)
static MOO_INLINE int inject_break_to_loop (moo_t* moo, const moo_ioloc_t* srcloc) static MOO_INLINE int inject_break_to_loop (moo_t* moo, const moo_ioloc_t* srcloc)
{ {
moo_cunit_class_t* cc = (moo_cunit_class_t*)moo->c->cunit; moo_cunit_class_t* cc = (moo_cunit_class_t*)moo->c->cunit;
if (add_to_oow_pool(moo, &cc->mth.loop->break_ip_pool, cc->mth.code.len) <= -1 || if (add_to_oow_pool(moo, &cc->mth.loop->break_ip_pool, cc->mth.code.len, srcloc) <= -1 ||
emit_single_param_instruction(moo, BCODE_JUMP_FORWARD, MAX_CODE_JUMP, srcloc) <= -1) return -1; emit_single_param_instruction(moo, BCODE_JUMP_FORWARD, MAX_CODE_JUMP, srcloc) <= -1) return -1;
return 0; return 0;
} }
@ -2940,7 +2944,7 @@ static MOO_INLINE int inject_continue_to_loop (moo_t* moo, const moo_ioloc_t* sr
moo_cunit_class_t* cc = (moo_cunit_class_t*)moo->c->cunit; moo_cunit_class_t* cc = (moo_cunit_class_t*)moo->c->cunit;
/* used for a do-while loop. jump forward because the conditional /* used for a do-while loop. jump forward because the conditional
* is at the end of the do-while loop */ * is at the end of the do-while loop */
if (add_to_oow_pool(moo, &cc->mth.loop->continue_ip_pool, cc->mth.code.len) <= -1 || if (add_to_oow_pool(moo, &cc->mth.loop->continue_ip_pool, cc->mth.code.len, srcloc) <= -1 ||
emit_single_param_instruction(moo, BCODE_JUMP_FORWARD, MAX_CODE_JUMP, srcloc) <= -1) return -1; emit_single_param_instruction(moo, BCODE_JUMP_FORWARD, MAX_CODE_JUMP, srcloc) <= -1) return -1;
return 0; return 0;
} }
@ -5017,7 +5021,11 @@ static int compile_block_expression (moo_t* moo)
if (emit_byte_instruction(moo, BCODE_RETURN_FROM_BLOCK, TOKEN_LOC(moo)) <= -1) return -1; if (emit_byte_instruction(moo, BCODE_RETURN_FROM_BLOCK, TOKEN_LOC(moo)) <= -1) return -1;
if (patch_forward_jump_instruction(moo, jump_inst_pos, cc->mth.code.len, &block_loc) <= -1) return -1; if (patch_forward_jump_instruction(moo, jump_inst_pos, cc->mth.code.len) <= -1)
{
moo_setsynerrbfmt (moo, MOO_SYNERR_INSTFLOOD, &block_loc, MOO_NULL, "unable to patch block jump");
return -1;
}
/* restore the temporary count */ /* restore the temporary count */
cc->mth.tmprs.len = saved_tmprs_len; cc->mth.tmprs.len = saved_tmprs_len;
@ -5712,7 +5720,7 @@ static int compile_unary_message (moo_t* moo, int to_super)
GET_TOKEN(moo); GET_TOKEN(moo);
/* NOTE: since the actual method may not be known at the compile time, /* [NOTE] since the actual method may not be known at the compile time,
* i can't check if nargs will match the number of arguments * i can't check if nargs will match the number of arguments
* expected by the method */ * expected by the method */
} }
@ -5987,7 +5995,7 @@ start_over:
int bcode; int bcode;
bcode = (TOKEN_TYPE(moo) == MOO_IOTOK_AND)? BCODE_JUMP_FORWARD_IF_FALSE: BCODE_JUMP_FORWARD_IF_TRUE; bcode = (TOKEN_TYPE(moo) == MOO_IOTOK_AND)? BCODE_JUMP_FORWARD_IF_FALSE: BCODE_JUMP_FORWARD_IF_TRUE;
/* TODO: optimization if the expression is a known constant that can be determined to be boolean */ /* TODO: optimization if the expression is a known constant that can be determined to be boolean */
if (add_to_oow_pool(moo, &jumptoend, cc->mth.code.len) <= -1 || if (add_to_oow_pool(moo, &jumptoend, cc->mth.code.len, TOKEN_LOC(moo)) <= -1 ||
emit_single_param_instruction(moo, bcode, MAX_CODE_JUMP, TOKEN_LOC(moo)) <= -1 || emit_single_param_instruction(moo, bcode, MAX_CODE_JUMP, TOKEN_LOC(moo)) <= -1 ||
emit_byte_instruction(moo, BCODE_POP_STACKTOP, TOKEN_LOC(moo)) <= -1) goto oops; emit_byte_instruction(moo, BCODE_POP_STACKTOP, TOKEN_LOC(moo)) <= -1) goto oops;
GET_TOKEN (moo); GET_TOKEN (moo);
@ -6011,15 +6019,17 @@ start_over:
goto start_over; goto start_over;
} }
/* patch instructions that jumps to the end of if expression */ /* patch instructions that jumps to the end of logical expression for short-circuited evaluation */
for (jumptoend_chunk = jumptoend.head, i = 0; jumptoend_chunk; jumptoend_chunk = jumptoend_chunk->next) for (jumptoend_chunk = jumptoend.head, i = 0; jumptoend_chunk; jumptoend_chunk = jumptoend_chunk->next)
{ {
/* pass expr_loc to every call to patch_forward_jump_instruction().
* it's harmless because if the first call doesn't flood, the subseqent
* call will never flood either. */
for (j = 0; j < MOO_COUNTOF(jumptoend.static_chunk.buf) && i < jumptoend.count; j++) for (j = 0; j < MOO_COUNTOF(jumptoend.static_chunk.buf) && i < jumptoend.count; j++)
{ {
if (patch_forward_jump_instruction (moo, jumptoend_chunk->buf[j], cc->mth.code.len, &expr_loc) <= -1) goto oops; if (patch_forward_jump_instruction (moo, jumptoend_chunk->buf[j].v, cc->mth.code.len) <= -1)
{
/* the logical expression is too large to patch the jump instruction */
moo_setsynerrbfmt (moo, MOO_SYNERR_INSTFLOOD, &expr_loc, MOO_NULL, "unable to patch logical operator jump");
goto oops;
}
i++; i++;
} }
} }
@ -6274,6 +6284,7 @@ static int compile_if_expression (moo_t* moo)
moo_oow_t jumptonext, precondpos, postcondpos, endoftrueblock; moo_oow_t jumptonext, precondpos, postcondpos, endoftrueblock;
moo_ioloc_t if_loc, brace_loc; moo_ioloc_t if_loc, brace_loc;
int jmpop_inst, push_true_inst, push_false_inst; int jmpop_inst, push_true_inst, push_false_inst;
moo_label_t* la, * lb;
MOO_ASSERT (moo, TOKEN_TYPE(moo) == MOO_IOTOK_IF || TOKEN_TYPE(moo) == MOO_IOTOK_IFNOT); MOO_ASSERT (moo, TOKEN_TYPE(moo) == MOO_IOTOK_IF || TOKEN_TYPE(moo) == MOO_IOTOK_IFNOT);
if_loc = *TOKEN_LOC(moo); if_loc = *TOKEN_LOC(moo);
@ -6299,46 +6310,48 @@ static int compile_if_expression (moo_t* moo)
do do
{ {
enum { COND_NORMAL, COND_TRUE, COND_FALSE } cond_type = COND_NORMAL; /* normal condition */
GET_TOKEN (moo); /* get ( */ GET_TOKEN (moo); /* get ( */
precondpos = cc->mth.code.len; precondpos = cc->mth.code.len;
if (jumptonext != INVALID_IP && if (jumptonext != INVALID_IP &&
patch_forward_jump_instruction(moo, jumptonext, precondpos, &brace_loc) <= -1) goto oops; patch_forward_jump_instruction(moo, jumptonext, precondpos) <= -1)
{
moo_setsynerrbfmt (moo, MOO_SYNERR_INSTFLOOD, &brace_loc, MOO_NULL, "unable to patch conditional branching jump");
goto oops;
}
if (compile_conditional(moo) <= -1) goto oops; if (compile_conditional(moo) <= -1) goto oops;
postcondpos = cc->mth.code.len; postcondpos = cc->mth.code.len;
if (precondpos + 1 == postcondpos && cc->mth.code.ptr[precondpos] == push_true_inst)
{
/* got 'if (true)' or 'ifnot (false)' */
jumptonext = INVALID_IP; /* indicate that the jump has not been emitted */
cond_type = COND_TRUE;
}
else if (precondpos + 1 == postcondpos && cc->mth.code.ptr[precondpos] == push_false_inst)
{
/* got 'if (false)' or 'ifnot (true)' */
jumptonext = INVALID_IP; /* indicate that the jump has not been emitted */
cond_type = COND_FALSE; /* mark that the conditional is false. instructions will get eliminated below */
}
else
{
/* remember position of the jmpop_forward_if_false instruction to be generated */ /* remember position of the jmpop_forward_if_false instruction to be generated */
jumptonext = cc->mth.code.len; jumptonext = cc->mth.code.len;
/* BCODE_JMPOP_FORWARD_IF_FALSE is always a long jump instruction. /* BCODE_JMPOP_FORWARD_IF_FALSE is always a long jump instruction.
* just specify MAX_CODE_JUMP for consistency with short jump variants */ * just specify MAX_CODE_JUMP for consistency with short jump variants */
if (emit_single_param_instruction(moo, jmpop_inst, MAX_CODE_JUMP, &if_loc) <= -1) goto oops; if (emit_single_param_instruction(moo, jmpop_inst, MAX_CODE_JUMP, &if_loc) <= -1) goto oops;
}
GET_TOKEN (moo); /* get { */ GET_TOKEN (moo); /* get { */
brace_loc = *TOKEN_LOC(moo); brace_loc = *TOKEN_LOC(moo);
if (compile_braced_block(moo) <= -1) goto oops;
switch (cond_type) la = cc->mth._label;
if (compile_braced_block(moo) <= -1) goto oops;
lb = cc->mth._label;
/* [NOTE]
* it checks by comparing 'la' and 'b' if there has been a label found inside a braced block.
* the code below doesn't eliminate instructions emitted of a braced block containing one or
* more labels.
*
* the check is suboptimal and primitive. an optimizing compiler needs to check if the actual
* jump is to be made made into the blcok. TODO: optimize it further
*/
if (la == lb && precondpos + 1 == postcondpos)
{ {
case COND_TRUE: if (cc->mth.code.ptr[precondpos] == push_true_inst)
MOO_ASSERT (moo, jumptonext == INVALID_IP); {
/* got 'if (true)' or 'ifnot (false)' */
eliminate_instructions (moo, jumptonext, jumptonext + MOO_BCODE_LONG_PARAM_SIZE);
jumptonext = INVALID_IP;
/* eliminate PUSH_TRUE */ /* eliminate PUSH_TRUE */
eliminate_instructions (moo, precondpos, precondpos); eliminate_instructions (moo, precondpos, precondpos);
@ -6349,23 +6362,28 @@ static int compile_if_expression (moo_t* moo)
/* update the end position of the first true block */ /* update the end position of the first true block */
endoftrueblock = cc->mth.code.len; endoftrueblock = cc->mth.code.len;
} }
break; }
else if (cc->mth.code.ptr[precondpos] == push_false_inst)
{
/* got 'if (false)' or 'ifnot (true)' */
case COND_FALSE: eliminate_instructions (moo, jumptonext, jumptonext + MOO_BCODE_LONG_PARAM_SIZE);
MOO_ASSERT (moo, jumptonext == INVALID_IP); jumptonext = INVALID_IP;
/* the conditional was false. eliminate instructions emitted /* the conditional was false. eliminate instructions emitted
* for the block attached to the conditional */ * for the block attached to the conditional */
eliminate_instructions (moo, precondpos, cc->mth.code.len - 1); eliminate_instructions (moo, precondpos, cc->mth.code.len - 1);
postcondpos = precondpos; postcondpos = precondpos;
break; }
else goto normal_cond;
case COND_NORMAL: }
MOO_ASSERT (moo, jumptonext != INVALID_IP); else
{
normal_cond:
if (endoftrueblock == INVALID_IP) if (endoftrueblock == INVALID_IP)
{ {
/* emit an instruction to jump to the end */ /* emit an instruction to jump to the end */
if (add_to_oow_pool(moo, &jumptoend, cc->mth.code.len) <= -1 || if (add_to_oow_pool(moo, &jumptoend, cc->mth.code.len, TOKEN_LOC(moo)) <= -1 ||
emit_single_param_instruction(moo, BCODE_JUMP_FORWARD, MAX_CODE_JUMP, TOKEN_LOC(moo)) <= -1) goto oops; emit_single_param_instruction(moo, BCODE_JUMP_FORWARD, MAX_CODE_JUMP, TOKEN_LOC(moo)) <= -1) goto oops;
} }
} }
@ -6390,8 +6408,13 @@ static int compile_if_expression (moo_t* moo)
while (1); while (1);
if (jumptonext != INVALID_IP && if (jumptonext != INVALID_IP &&
patch_forward_jump_instruction(moo, jumptonext, cc->mth.code.len, &brace_loc) <= -1) goto oops; patch_forward_jump_instruction(moo, jumptonext, cc->mth.code.len) <= -1)
{
moo_setsynerrbfmt (moo, MOO_SYNERR_INSTFLOOD, &brace_loc, MOO_NULL, "unable to patch conditional branching jump");
goto oops;
}
la = cc->mth._label;
if (TOKEN_TYPE(moo) == MOO_IOTOK_ELSE) if (TOKEN_TYPE(moo) == MOO_IOTOK_ELSE)
{ {
GET_TOKEN (moo); /* get { */ GET_TOKEN (moo); /* get { */
@ -6403,8 +6426,9 @@ static int compile_if_expression (moo_t* moo)
/* emit an instruction to push nil if no 'else' part exists */ /* emit an instruction to push nil if no 'else' part exists */
if (emit_byte_instruction(moo, BCODE_PUSH_NIL, TOKEN_LOC(moo)) <= -1) goto oops; if (emit_byte_instruction(moo, BCODE_PUSH_NIL, TOKEN_LOC(moo)) <= -1) goto oops;
} }
lb = cc->mth._label;
if (endoftrueblock != INVALID_IP) if (la == lb && endoftrueblock != INVALID_IP)
{ {
/* eliminate all instructions after the end of the first true block found */ /* eliminate all instructions after the end of the first true block found */
eliminate_instructions (moo, endoftrueblock, cc->mth.code.len - 1); eliminate_instructions (moo, endoftrueblock, cc->mth.code.len - 1);
@ -6413,12 +6437,13 @@ static int compile_if_expression (moo_t* moo)
/* patch instructions that jumps to the end of if expression */ /* patch instructions that jumps to the end of if expression */
for (jumptoend_chunk = jumptoend.head, i = 0; jumptoend_chunk; jumptoend_chunk = jumptoend_chunk->next) for (jumptoend_chunk = jumptoend.head, i = 0; jumptoend_chunk; jumptoend_chunk = jumptoend_chunk->next)
{ {
/* pass if_loc to every call to patch_forward_jump_instruction().
* it's harmless because if the first call doesn't flood, the subseqent
* call will never flood either. */
for (j = 0; j < MOO_COUNTOF(jumptoend.static_chunk.buf) && i < jumptoend.count; j++) for (j = 0; j < MOO_COUNTOF(jumptoend.static_chunk.buf) && i < jumptoend.count; j++)
{ {
if (patch_forward_jump_instruction (moo, jumptoend_chunk->buf[j], cc->mth.code.len, &if_loc) <= -1) goto oops; if (patch_forward_jump_instruction(moo, jumptoend_chunk->buf[j].v, cc->mth.code.len) <= -1)
{
moo_setsynerrbfmt (moo, MOO_SYNERR_INSTFLOOD, &jumptoend_chunk->buf[j].loc, MOO_NULL, "unable to patch conditional branching jump");
goto oops;
}
i++; i++;
} }
} }
@ -6521,15 +6546,18 @@ static int compile_while_expression (moo_t* moo) /* or compile_until_expression
{ {
/* the jump offset is out of the representable range by the offset /* the jump offset is out of the representable range by the offset
* portion of the jump instruction */ * portion of the jump instruction */
moo_setsynerr (moo, MOO_SYNERR_BLKFLOOD, &while_loc, MOO_NULL); moo_setsynerr (moo, MOO_SYNERR_INSTFLOOD, &while_loc, MOO_NULL);
} }
goto oops; goto oops;
} }
if (cond_style != 1) if (cond_style != 1)
{ {
/* patch the jump instruction */ if (patch_forward_jump_instruction(moo, postcondpos, cc->mth.code.len) <= -1)
if (patch_forward_jump_instruction(moo, postcondpos, cc->mth.code.len, &brace_loc) <= -1) goto oops; {
moo_setsynerrbfmt (moo, MOO_SYNERR_INSTFLOOD, &brace_loc, MOO_NULL, "unable to patch conditional loop jump");
goto oops;
}
} }
if (cond_style == -1) if (cond_style == -1)
@ -6642,7 +6670,7 @@ static int compile_do_while_expression (moo_t* moo)
{ {
/* the jump offset is out of the representable range by the offset /* the jump offset is out of the representable range by the offset
* portion of the jump instruction */ * portion of the jump instruction */
moo_setsynerr (moo, MOO_SYNERR_BLKFLOOD, &do_loc, MOO_NULL); moo_setsynerr (moo, MOO_SYNERR_INSTFLOOD, &do_loc, MOO_NULL);
} }
goto oops; goto oops;
} }
@ -6841,7 +6869,11 @@ static MOO_INLINE int resolve_goto_label (moo_t* moo, moo_goto_t* _goto)
MOO_ASSERT (moo, _goto->ip != INVALID_IP); MOO_ASSERT (moo, _goto->ip != INVALID_IP);
MOO_ASSERT (moo, _goto->ip != _label->ip); MOO_ASSERT (moo, _goto->ip != _label->ip);
if (patch_forward_jump_instruction(moo, _goto->ip, _label->ip, &_goto->loc) <= -1) return -1; if (patch_forward_jump_instruction(moo, _goto->ip, _label->ip) <= -1)
{
moo_setsynerrbfmt (moo, MOO_SYNERR_INSTFLOOD, &_goto->loc, MOO_NULL, "unable to patch unconditional jump");
return -1;
}
return 0; return 0;
} }
_label = _label->next; _label = _label->next;
@ -8712,7 +8744,7 @@ static int __compile_class_definition (moo_t* moo, int class_type)
* method-modifier := "(" (#class | #instance)? ")" * method-modifier := "(" (#class | #instance)? ")"
* method-actual-definition := method-name "{" method-tempraries? method-pragma? method-statements* "}" * method-actual-definition := method-name "{" method-tempraries? method-pragma? method-statements* "}"
* *
* NOTE: when extending a class, class-module-import and variable-definition are not allowed. * [NOTE] when extending a class, class-module-import and variable-definition are not allowed.
*/ */
moo_cunit_class_t* cc = (moo_cunit_class_t*)moo->c->cunit; moo_cunit_class_t* cc = (moo_cunit_class_t*)moo->c->cunit;
moo_oop_association_t ass; moo_oop_association_t ass;
@ -8878,7 +8910,7 @@ static int __compile_class_definition (moo_t* moo, int class_type)
return -1; return -1;
} }
/* NOTE: I don't mandate that the parent and the child be of the same type. /* [NOTE] I don't mandate that the parent and the child be of the same type.
* Say, for a parent class(#byte(4)), a child can be defined to be * Say, for a parent class(#byte(4)), a child can be defined to be
* class(#word(4)). */ * class(#word(4)). */

4
moo/lib/err.c
View File

@ -134,8 +134,8 @@ static moo_ooch_t synerrstr_58[] = {'t','o','o',' ','m','a','n','y',' ','t','e',
static moo_ooch_t synerrstr_59[] = {'t','o','o',' ','m','a','n','y',' ','a','r','g','u','m','e','n','t','s','\0'}; static moo_ooch_t synerrstr_59[] = {'t','o','o',' ','m','a','n','y',' ','a','r','g','u','m','e','n','t','s','\0'};
static moo_ooch_t synerrstr_60[] = {'t','o','o',' ','m','a','n','y',' ','b','l','o','c','k',' ','t','e','m','p','o','r','a','r','i','e','s','\0'}; static moo_ooch_t synerrstr_60[] = {'t','o','o',' ','m','a','n','y',' ','b','l','o','c','k',' ','t','e','m','p','o','r','a','r','i','e','s','\0'};
static moo_ooch_t synerrstr_61[] = {'t','o','o',' ','m','a','n','y',' ','b','l','o','c','k',' ','a','r','g','u','m','e','n','t','s','\0'}; static moo_ooch_t synerrstr_61[] = {'t','o','o',' ','m','a','n','y',' ','b','l','o','c','k',' ','a','r','g','u','m','e','n','t','s','\0'};
static moo_ooch_t synerrstr_62[] = {'t','o','o',' ','l','a','r','g','e',' ','b','l','o','c','k','\0'}; static moo_ooch_t synerrstr_62[] = {'a','r','r','a','y',' ','e','x','p','r','e','s','s','i','o','n',' ','t','o','o',' ','l','a','r','g','e','\0'};
static moo_ooch_t synerrstr_63[] = {'t','o','o',' ','l','a','r','g','e',' ','a','r','r','a','y',' ','e','x','p','r','e','s','s','i','o','n','\0'}; static moo_ooch_t synerrstr_63[] = {'i','n','s','t','r','u','c','t','i','o','n',' ','d','a','t','a',' ','t','o','o',' ','l','a','r','g','e','\0'};
static moo_ooch_t synerrstr_64[] = {'w','r','o','n','g',' ','p','r','i','m','i','t','i','v','e',' ','f','u','n','c','t','i','o','n',' ','n','u','m','b','e','r','\0'}; static moo_ooch_t synerrstr_64[] = {'w','r','o','n','g',' ','p','r','i','m','i','t','i','v','e',' ','f','u','n','c','t','i','o','n',' ','n','u','m','b','e','r','\0'};
static moo_ooch_t synerrstr_65[] = {'w','r','o','n','g',' ','p','r','i','m','i','t','i','v','e',' ','f','u','n','c','t','i','o','n',' ','i','d','e','n','t','i','f','i','e','r','\0'}; static moo_ooch_t synerrstr_65[] = {'w','r','o','n','g',' ','p','r','i','m','i','t','i','v','e',' ','f','u','n','c','t','i','o','n',' ','i','d','e','n','t','i','f','i','e','r','\0'};
static moo_ooch_t synerrstr_66[] = {'w','r','o','n','g',' ','p','r','i','m','i','t','i','v','e',' ','f','u','n','c','t','i','o','n',' ','a','r','g','u','m','e','n','t',' ','d','e','f','i','n','i','t','i','o','n','\0'}; static moo_ooch_t synerrstr_66[] = {'w','r','o','n','g',' ','p','r','i','m','i','t','i','v','e',' ','f','u','n','c','t','i','o','n',' ','a','r','g','u','m','e','n','t',' ','d','e','f','i','n','i','t','i','o','n','\0'};

12
moo/lib/exec.c
View File

@ -1321,7 +1321,7 @@ static int delete_sem_from_sem_io_tuple (moo_t* moo, moo_oop_semaphore_t sem, in
MOO_LOG3 (moo, MOO_LOG_WARN, "Failed to delete an IO semaphored handle %zd at index %zd for %hs\n", io_handle, index, io_type_str[io_type]); MOO_LOG3 (moo, MOO_LOG_WARN, "Failed to delete an IO semaphored handle %zd at index %zd for %hs\n", io_handle, index, io_type_str[io_type]);
if (!force) return -1; if (!force) return -1;
/* NOTE: /* [NOTE]
* this means there could be some issue handling the file handles. * this means there could be some issue handling the file handles.
* the file handle might have been closed before reaching here. * the file handle might have been closed before reaching here.
* assuming the callback works correctly, it's not likely that the * assuming the callback works correctly, it's not likely that the
@ -1649,7 +1649,7 @@ static MOO_INLINE moo_oop_method_t find_method_in_class (moo_t* moo, moo_oop_cla
return (moo_oop_method_t)ass->value; return (moo_oop_method_t)ass->value;
} }
/* NOTE: moo_seterrXXX() is not called here */ /* [NOTE] moo_seterrXXX() is not called here */
return MOO_NULL; return MOO_NULL;
} }
@ -1665,7 +1665,7 @@ static MOO_INLINE moo_oop_method_t find_method_in_class_chain (moo_t* moo, moo_o
} }
while ((moo_oop_t)_class != moo->_nil); while ((moo_oop_t)_class != moo->_nil);
/* NOTE: moo_seterrXXX() is not called here */ /* [NOTE] moo_seterrXXX() is not called here */
return MOO_NULL; return MOO_NULL;
} }
@ -2192,7 +2192,7 @@ static moo_pfrc_t pf_context_find_exception_handler (moo_t* moo, moo_mod_t* mod,
size = MOO_OBJ_GET_SIZE(rcv); size = MOO_OBJ_GET_SIZE(rcv);
for (i = MOO_CONTEXT_NAMED_INSTVARS; i < size; i += 2) for (i = MOO_CONTEXT_NAMED_INSTVARS; i < size; i += 2)
{ {
/* NOTE: the following loop scans all parameters to the on:do: method. /* [NOTE] the following loop scans all parameters to the on:do: method.
* if the on:do: method contains local temporary variables, * if the on:do: method contains local temporary variables,
* you must change this function to skip scanning local variables. * you must change this function to skip scanning local variables.
* the current on:do: method has 1 local variable declared. * the current on:do: method has 1 local variable declared.
@ -4758,7 +4758,7 @@ static MOO_INLINE int switch_process_if_needed (moo_t* moo)
* there are other normal processes to run. check IO activities * there are other normal processes to run. check IO activities
* before proceeding to handle normal process scheduling */ * before proceeding to handle normal process scheduling */
/* NOTE: the check with the multiplexer may happen too frequently /* [NOTE] the check with the multiplexer may happen too frequently
* because this is called everytime process switching is requested. * because this is called everytime process switching is requested.
* the actual callback implementation should try to avoid invoking * the actual callback implementation should try to avoid invoking
* actual system calls too frequently for less overhead. */ * actual system calls too frequently for less overhead. */
@ -5071,7 +5071,7 @@ static MOO_INLINE int do_return (moo_t* moo, moo_oob_t bcode, moo_oop_t return_v
MOO_ASSERT (moo, moo->active_context->origin == moo->processor->active->initial_context->origin); MOO_ASSERT (moo, moo->active_context->origin == moo->processor->active->initial_context->origin);
MOO_ASSERT (moo, moo->active_context->origin == moo->active_context); MOO_ASSERT (moo, moo->active_context->origin == moo->active_context);
/* NOTE: this condition is true for the processified block context also. /* [NOTE] this condition is true for the processified block context also.
* moo->active_context->origin == moo->processor->active->initial_context->origin * moo->active_context->origin == moo->processor->active->initial_context->origin
* however, the check here is done after context switching and the * however, the check here is done after context switching and the
* processified block check has been done against the context before switching */ * processified block check has been done against the context before switching */

2
moo/lib/gc.c
View File

@ -670,7 +670,7 @@ static void compact_symbol_table (moo_t* moo, moo_oop_t _nil)
if (tally <= 0) return; if (tally <= 0) return;
bucket = moo->symtab->bucket; bucket = moo->symtab->bucket;
/* NOTE: in theory, the bucket size can be greater than MOO_SMOOI_MAX /* [NOTE] in theory, the bucket size can be greater than MOO_SMOOI_MAX
* as it is an internal header field and is of an unsigned type */ * as it is an internal header field and is of an unsigned type */
bucket_size = MOO_OBJ_GET_SIZE(bucket); bucket_size = MOO_OBJ_GET_SIZE(bucket);

2
moo/lib/moo-cmn.h
View File

@ -378,7 +378,7 @@ typedef moo_int32_t moo_uci_t;
typedef moo_uint8_t moo_oob_t; typedef moo_uint8_t moo_oob_t;
/* NOTE: sizeof(moo_oop_t) must be equal to sizeof(moo_oow_t) */ /* [NOTE] sizeof(moo_oop_t) must be equal to sizeof(moo_oow_t) */
typedef moo_uintptr_t moo_oow_t; typedef moo_uintptr_t moo_oow_t;
typedef moo_intptr_t moo_ooi_t; typedef moo_intptr_t moo_ooi_t;
#define MOO_SIZEOF_OOW_T MOO_SIZEOF_UINTPTR_T #define MOO_SIZEOF_OOW_T MOO_SIZEOF_UINTPTR_T

6
moo/lib/moo-prv.h
View File

@ -369,7 +369,11 @@ struct moo_code_t
typedef struct moo_oow_pool_chunk_t moo_oow_pool_chunk_t; typedef struct moo_oow_pool_chunk_t moo_oow_pool_chunk_t;
struct moo_oow_pool_chunk_t struct moo_oow_pool_chunk_t
{ {
moo_oow_t buf[16]; struct
{
moo_oow_t v;
moo_ioloc_t loc;
} buf[16];
moo_oow_pool_chunk_t* next; moo_oow_pool_chunk_t* next;
}; };

2
moo/lib/moo.c
View File

@ -795,7 +795,7 @@ moo_pfbase_t* moo_querymod (moo_t* moo, const moo_ooch_t* pfid, moo_oow_t pfidle
/* add a new primitive method */ /* add a new primitive method */
int moo_genpfmethod (moo_t* moo, moo_mod_t* mod, moo_oop_class_t _class, moo_method_type_t type, const moo_ooch_t* mthname, int variadic, const moo_ooch_t* pfname) int moo_genpfmethod (moo_t* moo, moo_mod_t* mod, moo_oop_class_t _class, moo_method_type_t type, const moo_ooch_t* mthname, int variadic, const moo_ooch_t* pfname)
{ {
/* NOTE: this function is a subset of add_compiled_method() in comp.c */ /* [NOTE] this function is a subset of add_compiled_method() in comp.c */
moo_oop_char_t mnsym, pfidsym; moo_oop_char_t mnsym, pfidsym;
moo_oop_method_t mth; moo_oop_method_t mth;

8
moo/lib/moo.h
View File

@ -221,7 +221,7 @@ enum moo_obj_type_t
MOO_OBJ_TYPE_UINT32, MOO_OBJ_TYPE_UINT32,
*/ */
/* NOTE: you can have MOO_OBJ_SHORT, MOO_OBJ_INT /* [NOTE] you can have MOO_OBJ_SHORT, MOO_OBJ_INT
* MOO_OBJ_LONG, MOO_OBJ_FLOAT, MOO_OBJ_DOUBLE, etc * MOO_OBJ_LONG, MOO_OBJ_FLOAT, MOO_OBJ_DOUBLE, etc
* type type field being 6 bits long, you can have up to 64 different types. * type type field being 6 bits long, you can have up to 64 different types.
@ -429,7 +429,7 @@ struct moo_obj_word_t
#define MOO_OBJ_GET_WORD_VAL(oop,idx) ((((moo_oop_word_t)(oop))->slot)[idx]) #define MOO_OBJ_GET_WORD_VAL(oop,idx) ((((moo_oop_word_t)(oop))->slot)[idx])
#define MOO_OBJ_GET_LIWORD_VAL(oop,idx) ((((moo_oop_liword_t)(oop))->slot)[idx]) #define MOO_OBJ_GET_LIWORD_VAL(oop,idx) ((((moo_oop_liword_t)(oop))->slot)[idx])
#define MOO_OBJ_SET_OOP_VAL(oop,idx,val) ((((moo_oop_oop_t)(oop))->slot)[idx] = (val)) /* NOTE: MOO_STORE_OOP() */ #define MOO_OBJ_SET_OOP_VAL(oop,idx,val) ((((moo_oop_oop_t)(oop))->slot)[idx] = (val)) /* [NOTE] MOO_STORE_OOP() */
#define MOO_OBJ_SET_CHAR_VAL(oop,idx,val) ((((moo_oop_char_t)(oop))->slot)[idx] = (val)) #define MOO_OBJ_SET_CHAR_VAL(oop,idx,val) ((((moo_oop_char_t)(oop))->slot)[idx] = (val))
#define MOO_OBJ_SET_BYTE_VAL(oop,idx,val) ((((moo_oop_byte_t)(oop))->slot)[idx] = (val)) #define MOO_OBJ_SET_BYTE_VAL(oop,idx,val) ((((moo_oop_byte_t)(oop))->slot)[idx] = (val))
#define MOO_OBJ_SET_HALFWORD_VAL(oop,idx,val) ((((moo_oop_halfword_t)(oop))->slot)[idx] = (val)) #define MOO_OBJ_SET_HALFWORD_VAL(oop,idx,val) ((((moo_oop_halfword_t)(oop))->slot)[idx] = (val))
@ -665,7 +665,7 @@ struct moo_method_t
#define MOO_METHOD_PREAMBLE_FLAG_DUAL (1 << 2) #define MOO_METHOD_PREAMBLE_FLAG_DUAL (1 << 2)
#define MOO_METHOD_PREAMBLE_FLAG_LENIENT (1 << 3) /* lenient primitive method - no exception upon failure. return an error instead */ #define MOO_METHOD_PREAMBLE_FLAG_LENIENT (1 << 3) /* lenient primitive method - no exception upon failure. return an error instead */
/* NOTE: if you change the number of instance variables for moo_context_t, /* [NOTE] if you change the number of instance variables for moo_context_t,
* you need to change the defintion of BlockContext and MethodContext. * you need to change the defintion of BlockContext and MethodContext.
* plus, you need to update various exception handling code in MethodContext */ * plus, you need to update various exception handling code in MethodContext */
#define MOO_CONTEXT_NAMED_INSTVARS 8 #define MOO_CONTEXT_NAMED_INSTVARS 8
@ -1879,8 +1879,8 @@ enum moo_synerrnum_t
MOO_SYNERR_ARGFLOOD, /* too many arguments */ MOO_SYNERR_ARGFLOOD, /* too many arguments */
MOO_SYNERR_BLKTMPRFLOOD, /* too many block temporaries */ MOO_SYNERR_BLKTMPRFLOOD, /* too many block temporaries */
MOO_SYNERR_BLKARGFLOOD, /* too many block arguments */ MOO_SYNERR_BLKARGFLOOD, /* too many block arguments */
MOO_SYNERR_BLKFLOOD, /* too large block */
MOO_SYNERR_ARREXPFLOOD, /* too large array expression */ MOO_SYNERR_ARREXPFLOOD, /* too large array expression */
MOO_SYNERR_INSTFLOOD, /* instruction too large */
MOO_SYNERR_PFNUMINVAL, /* wrong primitive function number */ MOO_SYNERR_PFNUMINVAL, /* wrong primitive function number */
MOO_SYNERR_PFIDINVAL, /* wrong primitive function identifier */ MOO_SYNERR_PFIDINVAL, /* wrong primitive function identifier */
MOO_SYNERR_PFARGDEFINVAL, /* wrong primitive function argument definition */ MOO_SYNERR_PFARGDEFINVAL, /* wrong primitive function argument definition */

2
moo/lib/pf-basic.c
View File

@ -139,7 +139,7 @@ static int _equal_objects (moo_t* moo, moo_oop_t rcv, moo_oop_t arg)
int n; int n;
/* TODO: remove recursion */ /* TODO: remove recursion */
/* NOTE: even if the object implements the equality method, /* [NOTE] even if the object implements the equality method,
* this primitive method doesn't honor it. */ * this primitive method doesn't honor it. */
n = _equal_objects(moo, MOO_OBJ_GET_OOP_VAL(rcv, i), MOO_OBJ_GET_OOP_VAL(arg, i)); n = _equal_objects(moo, MOO_OBJ_GET_OOP_VAL(rcv, i), MOO_OBJ_GET_OOP_VAL(arg, i));
if (n <= 0) return n; if (n <= 0) return n;

4
moo/lib/utl.c
View File

@ -91,7 +91,7 @@ int moo_equal_uchars (const moo_uch_t* str1, const moo_uch_t* str2, moo_oow_t le
{ {
moo_oow_t i; moo_oow_t i;
/* NOTE: you should call this function after having ensured that /* [NOTE] you should call this function after having ensured that
* str1 and str2 are in the same length */ * str1 and str2 are in the same length */
for (i = 0; i < len; i++) for (i = 0; i < len; i++)
@ -106,7 +106,7 @@ int moo_equal_bchars (const moo_bch_t* str1, const moo_bch_t* str2, moo_oow_t le
{ {
moo_oow_t i; moo_oow_t i;
/* NOTE: you should call this function after having ensured that /* [NOTE] you should call this function after having ensured that
* str1 and str2 are in the same length */ * str1 and str2 are in the same length */
for (i = 0; i < len; i++) for (i = 0; i < len; i++)

4
moo/mod/sck.c
View File

@ -488,7 +488,7 @@ static moo_pfrc_t pf_read_socket (moo_t* moo, moo_mod_t* mod, moo_ooi_t nargs)
return MOO_PF_FAILURE; return MOO_PF_FAILURE;
} }
/* NOTE: on EWOULDBLOCK or EGAIN, -1 is returned */ /* [NOTE] on EWOULDBLOCK or EGAIN, -1 is returned */
MOO_ASSERT (moo, MOO_IN_SMOOI_RANGE(n)); MOO_ASSERT (moo, MOO_IN_SMOOI_RANGE(n));
@ -561,7 +561,7 @@ static moo_pfrc_t pf_write_socket (moo_t* moo, moo_mod_t* mod, moo_ooi_t nargs)
return MOO_PF_FAILURE; return MOO_PF_FAILURE;
} }
/* NOTE: on EWOULDBLOCK or EGAIN, -1 is returned */ /* [NOTE] on EWOULDBLOCK or EGAIN, -1 is returned */
MOO_ASSERT (moo, MOO_IN_SMOOI_RANGE(n)); MOO_ASSERT (moo, MOO_IN_SMOOI_RANGE(n));
MOO_STACK_SETRET (moo, nargs, MOO_SMOOI_TO_OOP(n)); MOO_STACK_SETRET (moo, nargs, MOO_SMOOI_TO_OOP(n));