static void Append_Obj(REBSER *obj, REBVAL *arg)
{
REBCNT i;
REBCNT len = 0;
REBVAL *val;
REBVAL *start = arg;
// Can be a word:
if (ANY_WORD(arg)) {
if (!Find_Word_Index(obj, VAL_WORD_SYM(arg), TRUE)) {
if (VAL_WORD_CANON(arg) == SYM_SELF) Trap0(RE_SELF_PROTECTED);
Expand_Frame(obj, 1, 1); // copy word table also
Append_Frame(obj, 0, VAL_WORD_SYM(arg));
// val is UNSET
}
return;
}
if (!IS_BLOCK(arg)) Trap_Arg(arg);
// Verify word/value argument block:
for (arg = VAL_BLK_DATA(arg); NOT_END(arg); arg += 2) {
if (!IS_WORD(arg) && !IS_SET_WORD(arg)) Trap_Arg(arg);
if (NZ(i = Find_Word_Index(obj, VAL_WORD_SYM(arg), TRUE))) {
// Just change the value, do not append it.
val = FRM_VALUE(obj, i);
if (GET_FLAGS(VAL_OPTS(FRM_WORD(obj, i)), OPTS_HIDE, OPTS_LOCK)) {
// Back out... reset any prior flags:
for (; arg != VAL_BLK_DATA(start); arg -= 2) VAL_CLR_OPT(arg, OPTS_TEMP);
if (VAL_PROTECTED(FRM_WORD(obj, i))) Trap1(RE_LOCKED_WORD, FRM_WORD(obj, i));
Trap0(RE_HIDDEN);
}
// Problem above: what about prior OPTS_FLAGS? Ok to leave them as is?
if (IS_END(arg+1)) SET_NONE(val);
else *val = arg[1];
VAL_SET_OPT(arg, OPTS_TEMP);
} else {
if (VAL_WORD_CANON(arg) == SYM_SELF) Trap0(RE_SELF_PROTECTED);
len++;
// was: Trap1(RE_DUP_VARS, arg);
}
if (IS_END(arg+1)) break; // fix bug#708
}
// Append new values to end of frame (if necessary):
if (len > 0) {
Expand_Frame(obj, len, 1); // copy word table also
for (arg = VAL_BLK_DATA(start); NOT_END(arg); arg += 2) {
if (VAL_GET_OPT(arg, OPTS_TEMP)) VAL_CLR_OPT(arg, OPTS_TEMP);
else {
val = Append_Frame(obj, 0, VAL_WORD_SYM(arg));
if (IS_END(arg+1)) {
SET_NONE(val);
break;
}
else *val = arg[1];
}
}
}
}
static void Append_Obj(REBSER *obj, REBVAL *arg)
{
REBCNT i, len;
REBVAL *word, *val;
REBINT *binds; // for binding table
// Can be a word:
if (ANY_WORD(arg)) {
if (!Find_Word_Index(obj, VAL_WORD_SYM(arg), TRUE)) {
// bug fix, 'self is protected only in selfish frames
if ((VAL_WORD_CANON(arg) == SYM_SELF) && !IS_SELFLESS(obj))
Trap0(RE_SELF_PROTECTED);
Expand_Frame(obj, 1, 1); // copy word table also
Append_Frame(obj, 0, VAL_WORD_SYM(arg));
// val is UNSET
}
return;
}
if (!IS_BLOCK(arg)) Trap_Arg(arg);
// Process word/value argument block:
arg = VAL_BLK_DATA(arg);
// Use binding table
binds = WORDS_HEAD(Bind_Table);
// Handle selfless
Collect_Start(IS_SELFLESS(obj) ? BIND_NO_SELF | BIND_ALL : BIND_ALL);
// Setup binding table with obj words:
Collect_Object(obj);
// Examine word/value argument block
for (word = arg; NOT_END(word); word += 2) {
if (!IS_WORD(word) && !IS_SET_WORD(word)) {
// release binding table
BLK_TERM(BUF_WORDS);
Collect_End(obj);
Trap_Arg(word);
}
if (NZ(i = binds[VAL_WORD_CANON(word)])) {
// bug fix, 'self is protected only in selfish frames:
if ((VAL_WORD_CANON(word) == SYM_SELF) && !IS_SELFLESS(obj)) {
// release binding table
BLK_TERM(BUF_WORDS);
Collect_End(obj);
Trap0(RE_SELF_PROTECTED);
}
} else {
// collect the word
binds[VAL_WORD_CANON(word)] = SERIES_TAIL(BUF_WORDS);
EXPAND_SERIES_TAIL(BUF_WORDS, 1);
val = BLK_LAST(BUF_WORDS);
*val = *word;
}
if (IS_END(word + 1)) break; // fix bug#708
}
BLK_TERM(BUF_WORDS);
// Append new words to obj
len = SERIES_TAIL(obj);
Expand_Frame(obj, SERIES_TAIL(BUF_WORDS) - len, 1);
for (word = BLK_SKIP(BUF_WORDS, len); NOT_END(word); word++)
Append_Frame(obj, 0, VAL_WORD_SYM(word));
// Set new values to obj words
for (word = arg; NOT_END(word); word += 2) {
i = binds[VAL_WORD_CANON(word)];
val = FRM_VALUE(obj, i);
if (GET_FLAGS(VAL_OPTS(FRM_WORD(obj, i)), OPTS_HIDE, OPTS_LOCK)) {
// release binding table
Collect_End(obj);
if (VAL_PROTECTED(FRM_WORD(obj, i)))
Trap1(RE_LOCKED_WORD, FRM_WORD(obj, i));
Trap0(RE_HIDDEN);
}
if (IS_END(word + 1)) SET_NONE(val);
else *val = word[1];
if (IS_END(word + 1)) break; // fix bug#708
}
// release binding table
Collect_End(obj);
}
