*/ void Post_Mold(REBVAL *value, REB_MOLD *mold)
/*
** For series that has an index, add the index for mold/all.
** Add closing block.
**
***********************************************************************/
{
if (VAL_INDEX(value)) {
Append_Byte(mold->series, ' ');
Append_Int(mold->series, VAL_INDEX(value)+1);
}
if (GET_MOPT(mold, MOPT_MOLD_ALL)) Append_Byte(mold->series, ']');
}
*/ static void Scan_Error(REBCNT errnum, SCAN_STATE *ss, REBCNT tkn, REBYTE *arg, REBCNT size, REBVAL *relax)
/*
** Scanner error handler
**
***********************************************************************/
{
ERROR_OBJ *error;
REBSER *errs;
REBYTE *name;
REBYTE *cp;
REBYTE *bp;
REBSER *ser;
REBCNT len = 0;
ss->errors++;
if (PG_Boot_Strs)
name = BOOT_STR(RS_SCAN,tkn);
else
name = (REBYTE*)"boot";
cp = ss->head_line;
while (IS_LEX_SPACE(*cp)) cp++; // skip indentation
bp = cp;
while (NOT_NEWLINE(*cp)) cp++, len++;
//DISABLE_GC;
errs = Make_Error(errnum, 0, 0, 0);
error = (ERROR_OBJ *)FRM_VALUES(errs);
ser = Make_Binary(len + 16);
Append_Bytes(ser, "(line ");
Append_Int(ser, ss->line_count);
Append_Bytes(ser, ") ");
Append_Series(ser, (REBYTE*)bp, len);
Set_String(&error->nearest, ser);
Set_String(&error->arg1, Copy_Bytes(name, -1));
Set_String(&error->arg2, Copy_Bytes(arg, size));
if (relax) {
SET_ERROR(relax, errnum, errs);
//ENABLE_GC;
return;
}
Throw_Error(errs); // ENABLE_GC implied
}
STOID Mold_Error(REBVAL *value, REB_MOLD *mold, REBFLG molded)
{
ERROR_OBJ *err;
REBVAL *msg; // Error message block
// Protect against recursion. !!!!
if (molded) {
if (VAL_OBJ_FRAME(value) && VAL_ERR_NUM(value) >= RE_NOTE && VAL_ERR_OBJECT(value))
Mold_Object(value, mold);
else {
// Happens if throw or return is molded.
// make error! 0-3
Pre_Mold(value, mold);
Append_Int(mold->series, VAL_ERR_NUM(value));
End_Mold(mold);
}
return;
}
// If it is an unprocessed BREAK, THROW, CONTINUE, RETURN:
if (VAL_ERR_NUM(value) < RE_NOTE || !VAL_ERR_OBJECT(value)) {
VAL_ERR_OBJECT(value) = Make_Error(VAL_ERR_NUM(value), value, 0, 0); // spoofs field
}
err = VAL_ERR_VALUES(value);
// Form: ** <type> Error:
Emit(mold, "** WB", &err->type, RS_ERRS+0);
// Append: error message ARG1, ARG2, etc.
msg = Find_Error_Info(err, 0);
if (msg) {
if (!IS_BLOCK(msg)) Mold_Value(mold, msg, 0);
else {
//start = DSP + 1;
//Reduce_In_Frame(VAL_ERR_OBJECT(value), VAL_BLK_DATA(msg));
//SERIES_TAIL(DS_Series) = DSP + 1;
//Form_Block_Series(DS_Series, start, mold, 0);
Form_Block_Series(VAL_SERIES(msg), 0, mold, VAL_ERR_OBJECT(value));
}
} else
Append_Boot_Str(mold->series, RS_ERRS+1);
Append_Byte(mold->series, '\n');
// Form: ** Where: function
value = &err->where;
if (VAL_TYPE(value) > REB_NONE) {
Append_Boot_Str(mold->series, RS_ERRS+2);
Mold_Value(mold, value, 0);
Append_Byte(mold->series, '\n');
}
// Form: ** Near: location
value = &err->nearest;
if (VAL_TYPE(value) > REB_NONE) {
Append_Boot_Str(mold->series, RS_ERRS+3);
if (IS_STRING(value)) // special case: source file line number
Append_String(mold->series, VAL_SERIES(value), 0, VAL_TAIL(value));
else if (IS_BLOCK(value))
Mold_Simple_Block(mold, VAL_BLK_DATA(value), 60);
Append_Byte(mold->series, '\n');
}
}
*/ REBSER *Emit(REB_MOLD *mold, REBYTE *fmt, ...)
/*
***********************************************************************/
{
va_list args;
REBYTE ender = 0;
REBSER *series = mold->series;
ASSERT2(SERIES_WIDE(series) ==2, 9997);
va_start(args, fmt);
for (; *fmt; fmt++) {
switch (*fmt) {
case 'W': // Word symbol
Append_UTF8(series, Get_Word_Name(va_arg(args, REBVAL*)), -1);
break;
case 'V': // Value
Mold_Value(mold, va_arg(args, REBVAL*), TRUE);
break;
case 'S': // String of bytes
Append_Bytes(series, va_arg(args, REBYTE*));
break;
case 'C': // Char
Append_Byte(series, va_arg(args, REBCNT));
break;
case 'E': // Series (byte or uni)
{
REBSER *src = va_arg(args, REBSER*);
Insert_String(series, SERIES_TAIL(series), src, 0, SERIES_TAIL(src), 0);
}
break;
case 'I': // Integer
Append_Int(series, va_arg(args, REBINT));
break;
case 'i':
Append_Int_Pad(series, va_arg(args, REBINT), -9);
Trim_Tail(mold->series, '0');
break;
case '2': // 2 digit int (for time)
Append_Int_Pad(series, va_arg(args, REBINT), 2);
break;
case 'T': // Type name
Append_UTF8(series, Get_Type_Name(va_arg(args, REBVAL*)), -1);
break;
case 'N': // Symbol name
Append_UTF8(series, Get_Sym_Name(va_arg(args, REBCNT)), -1);
break;
case '+': // Add #[ if mold/all
if (GET_MOPT(mold, MOPT_MOLD_ALL)) {
Append_Bytes(series, "#[");
ender = ']';
}
break;
case 'D': // Datatype symbol: #[type
if (ender) {
Append_UTF8(series, Get_Sym_Name(va_arg(args, REBCNT)), -1);
Append_Byte(series, ' ');
} else va_arg(args, REBCNT); // ignore it
break;
case 'B': // Boot string
Append_Boot_Str(series, va_arg(args, REBINT));
break;
default:
Append_Byte(series, *fmt);
}
}
va_end(args);
if (ender) Append_Byte(series, ender);
return series;
}
//
// Emit: C
//
// This is a general "printf-style" utility function, which R3-Alpha used to
// make some formatting tasks easier. It was not applied consistently, and
// some callsites avoided using it because it would be ostensibly slower
// than calling the functions directly.
//
void Emit(REB_MOLD *mo, const char *fmt, ...)
{
va_list va;
va_start(va, fmt);
REBYTE ender = '\0';
for (; *fmt; fmt++) {
switch (*fmt) {
case 'W': { // Word symbol
const REBVAL *any_word = va_arg(va, const REBVAL*);
Append_Spelling(mo->series, VAL_WORD_SPELLING(any_word));
break; }
case 'V': // Value
Mold_Value(mo, va_arg(va, const REBVAL*));
break;
case 'S': // String of bytes
Append_Ascii(mo->series, va_arg(va, const char *));
break;
case 'C': // Char
Append_Codepoint(mo->series, va_arg(va, uint32_t));
break;
case 'I': // Integer
Append_Int(mo->series, va_arg(va, REBINT));
break;
case 'i':
Append_Int_Pad(mo->series, va_arg(va, REBINT), -9);
Trim_Tail(mo, '0');
break;
case '2': // 2 digit int (for time)
Append_Int_Pad(mo->series, va_arg(va, REBINT), 2);
break;
case 'T': { // Type name
REBSTR *type_name = Get_Type_Name(va_arg(va, REBVAL*));
Append_Spelling(mo->series, type_name);
break; }
case 'N': { // Symbol name
REBSTR *spelling = va_arg(va, REBSTR*);
Append_Spelling(mo->series, spelling);
break; }
case '+': // Add #[ if mold/all
if (GET_MOLD_FLAG(mo, MOLD_FLAG_ALL)) {
Append_Ascii(mo->series, "#[");
ender = ']';
}
break;
case 'D': // Datatype symbol: #[type
if (ender != '\0') {
REBSTR *canon = Canon(cast(REBSYM, va_arg(va, int)));
Append_Spelling(mo->series, canon);
Append_Codepoint(mo->series, ' ');
}
else
va_arg(va, REBCNT); // ignore it
break;
default:
Append_Codepoint(mo->series, *fmt);
}
static void Mold_Error(const REBVAL *value, REB_MOLD *mold, REBFLG molded)
{
ERROR_OBJ *err;
REBVAL *msg; // Error message block
REBSER *frame;
// Protect against recursion. !!!!
if (molded) {
if (VAL_OBJ_FRAME(value) && VAL_ERR_NUM(value) >= RE_NOTE && VAL_ERR_OBJECT(value))
Mold_Object(value, mold);
else {
// Happens if throw or return is molded.
// make error! 0-3
Pre_Mold(value, mold);
Append_Int(mold->series, VAL_ERR_NUM(value));
End_Mold(mold);
}
return;
}
if (VAL_ERR_NUM(value) < RE_THROW_MAX) {
// Though we generally do not make error objects for THROWN() errors,
// we do make one here for the purposes of molding.
frame = Make_Error(VAL_ERR_NUM(value), value, 0, 0);
err = ERR_VALUES(frame);
}
else {
frame = VAL_ERR_OBJECT(value);
err = VAL_ERR_VALUES(value);
}
// Form: ** <type> Error:
Emit(mold, "** WB", &err->type, RS_ERRS+0);
// Append: error message ARG1, ARG2, etc.
msg = Find_Error_Info(err, 0);
if (msg) {
if (!IS_BLOCK(msg)) Mold_Value(mold, msg, 0);
else {
//start = DSP + 1;
//Reduce_In_Frame(frame, VAL_BLK_DATA(msg));
//SERIES_TAIL(DS_Series) = DSP + 1;
//Form_Block_Series(DS_Series, start, mold, 0);
Form_Block_Series(VAL_SERIES(msg), 0, mold, frame);
}
} else
Append_Boot_Str(mold->series, RS_ERRS+1);
Append_Byte(mold->series, '\n');
// Form: ** Where: function
value = &err->where;
if (VAL_TYPE(value) > REB_NONE) {
Append_Boot_Str(mold->series, RS_ERRS+2);
Mold_Value(mold, value, 0);
Append_Byte(mold->series, '\n');
}
// Form: ** Near: location
value = &err->nearest;
if (VAL_TYPE(value) > REB_NONE) {
Append_Boot_Str(mold->series, RS_ERRS+3);
if (IS_STRING(value)) // special case: source file line number
Append_String(mold->series, VAL_SERIES(value), 0, VAL_TAIL(value));
else if (IS_BLOCK(value))
Mold_Simple_Block(mold, VAL_BLK_DATA(value), 60);
Append_Byte(mold->series, '\n');
}
}