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Gracefully error on newly reserved keywords.

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This commit is contained in:
David Anderson
2014-12-09 23:18:11 -08:00
parent 94bed806fe
commit 1ee3067575
2 changed files with 62 additions and 4 deletions
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sourcepawn/compiler/sc2.cpp
+61 -4
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@@ -2053,6 +2053,55 @@ const char *sc_tokens[] = {
"-label-", "-string-", "-string-"
};
static inline bool
IsUnimplementedKeyword(int token)
{
switch (token) {
case tACQUIRE:
case tAS:
case tCATCH:
case tCAST_TO:
case tDOUBLE:
case tEXPLICIT:
case tFINALLY:
case tFOREACH:
case tIMPLICIT:
case tIMPORT:
case tIN:
case tINT8:
case tINT16:
case tINT32:
case tINT64:
case tINTERFACE:
case tINTN:
case tLET:
case tNAMESPACE:
case tPACKAGE:
case tPRIVATE:
case tPROTECTED:
case tREADONLY:
case tSEALED:
case tTHROW:
case tTRY:
case tTYPEOF:
case tUINT8:
case tUINT16:
case tUINT32:
case tUINT64:
case tUINTN:
case tUNION:
case tUSING:
case tVAR:
case tVARIANT:
case tVIRTUAL:
case tVOLATILE:
case tWITH:
return true;
default:
return false;
}
}
static full_token_t *advance_token_ptr()
{
assert(sTokenBuffer->depth == 0);
@@ -2150,10 +2199,18 @@ int lex(cell *lexvalue,char **lexsym)
} /* while */
while (i<=tLAST) { /* match reserved words and compiler directives */
if (*lptr==**tokptr && match(*tokptr,TRUE)) {
tok->id = i;
errorset(sRESET,0); /* reset error flag (clear the "panic mode")*/
if (pc_docexpr) /* optionally concatenate to documentation string */
insert_autolist(*tokptr);
if (IsUnimplementedKeyword(i)) {
// Try to gracefully error.
error(173, sc_tokens[i - tFIRST]);
tok->id = tSYMBOL;
strcpy(tok->str, sc_tokens[i - tFIRST]);
tok->len = strlen(tok->str);
} else {
tok->id = i;
errorset(sRESET,0); /* reset error flag (clear the "panic mode")*/
if (pc_docexpr) /* optionally concatenate to documentation string */
insert_autolist(*tokptr);
}
tok->end.line = fline;
tok->end.col = (int)(lptr - pline);
return tok->id;