Changeset: 00c355592bac for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=00c355592bac
Modified Files:
monetdb5/mal/mal_client.c
monetdb5/mal/mal_client.h
monetdb5/mal/mal_parser.c
monetdb5/mal/mal_session.c
Branch: malparsing
Log Message:
Revert backup malblock for parsing
The MAL function statements should be assembled in their own block
to avoid scoping issues.
diffs (242 lines):
diff --git a/monetdb5/mal/mal_client.c b/monetdb5/mal/mal_client.c
--- a/monetdb5/mal/mal_client.c
+++ b/monetdb5/mal/mal_client.c
@@ -215,6 +215,7 @@ MCinitClientRecord(Client c, oid user, b
c->mdb = 0;
c->history = 0;
c->curprg = 0;
+ c->backup = 0;
c->glb = 0;
/* remove garbage from previous connection
diff --git a/monetdb5/mal/mal_client.h b/monetdb5/mal/mal_client.h
--- a/monetdb5/mal/mal_client.h
+++ b/monetdb5/mal/mal_client.h
@@ -148,6 +148,7 @@ typedef struct CLIENT {
Module usermodule; /* private user scope */
Module curmodule; /* where to deliver the symbol,
used by parser , only freed globally */
Symbol curprg; /* container for the malparser */
+ Symbol backup; /* saving the parser context for
functions,commands/patterns */
MalStkPtr glb; /* global variable stack */
/*
* Some statistics on client behavior becomes relevant for server
diff --git a/monetdb5/mal/mal_parser.c b/monetdb5/mal/mal_parser.c
--- a/monetdb5/mal/mal_parser.c
+++ b/monetdb5/mal/mal_parser.c
@@ -956,7 +956,12 @@ fcnHeader(Client cntxt, int kind)
advance(cntxt, l);
} else
modnme= cntxt->curmodule->name;
- cntxt->curprg->name = fnme;
+
+ if (cntxt->backup){
+ parseError(cntxt, "mal_parser: unexpected recursion\n");
+ return 0;
+ }
+
if (*cntxt->lineptr != '('){
parseError(cntxt, "function header '(' expected\n");
@@ -964,13 +969,12 @@ fcnHeader(Client cntxt, int kind)
}
advance(cntxt, 1);
- curInstr = getInstrPtr(cntxt->curprg->def,0);
- setModuleId(curInstr,modnme);
- setFunctionId(curInstr,fnme);
- curInstr->token = kind;
- cntxt->curprg->kind = kind;
+ cntxt->backup = cntxt->curprg;
+ cntxt->curprg = newFunction( modnme, fnme, kind);
+ curBlk = cntxt->curprg->def;
+ curInstr = getInstrPtr(curBlk, 0);
- /* get calling parameters */
+ /*get calling parameters */
ch = *cntxt->lineptr;
while (ch != ')' && ch && !NL(ch)) {
curInstr = binding(cntxt, curBlk, curInstr, 1);
@@ -984,6 +988,11 @@ fcnHeader(Client cntxt, int kind)
if ((ch = *cntxt->lineptr) != ',') {
if (ch == ')')
break;
+ if (cntxt->backup) {
+ freeSymbol(cntxt->curprg);
+ cntxt->curprg = cntxt->backup;
+ cntxt->backup = 0;
+ }
parseError(cntxt, "',' expected\n");
return 1;
} else
@@ -991,6 +1000,12 @@ fcnHeader(Client cntxt, int kind)
ch = *cntxt->lineptr;
}
if (*cntxt->lineptr != ')') {
+ if (cntxt->backup) {
+ freeSymbol(cntxt->curprg);
+ cntxt->curprg = cntxt->backup;
+ cntxt->backup = 0;
+ }
+
parseError(cntxt, "')' expected\n");
return 1;
}
@@ -1028,6 +1043,12 @@ fcnHeader(Client cntxt, int kind)
if ((ch = *cntxt->lineptr) != ',') {
if (ch == ')')
break;
+ if (cntxt->backup) {
+ freeSymbol(cntxt->curprg);
+ cntxt->curprg = cntxt->backup;
+ cntxt->backup = 0;
+ }
+
parseError(cntxt, "',' expected\n");
return 1;
} else {
@@ -1039,6 +1060,11 @@ fcnHeader(Client cntxt, int kind)
max = curInstr->maxarg;
newarg = (short *) GDKmalloc(max * sizeof(curInstr->argv[0]));
if (newarg == NULL){
+ if (cntxt->backup) {
+ freeSymbol(cntxt->curprg);
+ cntxt->curprg = cntxt->backup;
+ cntxt->backup = 0;
+ }
parseError(cntxt, MAL_MALLOC_FAIL);
return 1;
}
@@ -1054,6 +1080,11 @@ fcnHeader(Client cntxt, int kind)
curInstr->argv[i1] = newarg[i1];
GDKfree(newarg);
if (*cntxt->lineptr != ')') {
+ if (cntxt->backup) {
+ freeSymbol(cntxt->curprg);
+ cntxt->curprg = cntxt->backup;
+ cntxt->backup = 0;
+ }
parseError(cntxt, "')' expected\n");
return 1;
}
@@ -1071,7 +1102,7 @@ fcnHeader(Client cntxt, int kind)
static MalBlkPtr
parseCommandPattern(Client cntxt, int kind)
{
- MalBlkPtr curBlk = cntxt->curprg->def;
+ MalBlkPtr curBlk;
Symbol curPrg = 0;
InstrPtr curInstr = 0;
str modnme = NULL;
@@ -1079,7 +1110,7 @@ parseCommandPattern(Client cntxt, int ki
if( fcnHeader(cntxt, kind))
return 0;
- getInstrPtr(curBlk, 0)->token = kind;
+ curBlk = cntxt->curprg->def;
curPrg = cntxt->curprg;
curPrg->kind = kind;
curInstr = getInstrPtr(curBlk, 0);
@@ -1089,13 +1120,22 @@ parseCommandPattern(Client cntxt, int ki
l = strlen(modnme);
modnme = putNameLen(modnme, l);
- if( strcmp(modnme,"user") ==0 ){
- insertSymbol(cntxt->usermodule, curPrg);
- } else
- if( getModule(modnme) ){
- insertSymbol( getModule(modnme), curPrg);
+ if ( strcmp(modnme,"user")== 0 || getModule(modnme)){
+ if ( strcmp(modnme,"user") == 0)
+ insertSymbol(cntxt->usermodule, curPrg);
+ else
+ insertSymbol(getModule(modnme), curPrg);
+ chkProgram(cntxt->usermodule, curBlk);
+ cntxt->curprg->def->errors = cntxt->backup->def->errors;
+ cntxt->backup->def->errors = 0;
+ cntxt->curprg = cntxt->backup;
+ cntxt->backup = 0;
} else {
+ freeSymbol(curPrg);
+ cntxt->curprg = cntxt->backup;
+ cntxt->backup = 0;
parseError(cntxt, "<module> not found\n");
+ return 0;
}
/*
* Short-cut function calls
@@ -1214,12 +1254,23 @@ parseEnd(Client cntxt)
}
if ((l == (int) strlen(getFunctionId(sig)) &&
strncmp(cntxt->lineptr, getFunctionId(sig), l) == 0) ||
l == 0) {} else {
+ advance(cntxt, l);
parseError(cntxt, "non matching end label\n");
return 0;
}
advance(cntxt, l);
pushEndInstruction(cntxt->curprg->def);
cntxt->blkmode = 0;
+ if ( strcmp(getModuleId(sig),"user")== 0 )
+ insertSymbol(cntxt->usermodule, cntxt->curprg);
+ else
+ insertSymbol(getModule(getModuleId(sig)),
cntxt->curprg);
+ chkProgram(cntxt->usermodule, cntxt->curprg->def);
+ if (cntxt->backup) {
+ cntxt->backup->def->errors =
GDKstrdup(cntxt->curprg->def->errors);
+ cntxt->curprg = cntxt->backup;
+ cntxt->backup = 0;
+ }
return 1;
}
return 0;
diff --git a/monetdb5/mal/mal_session.c b/monetdb5/mal/mal_session.c
--- a/monetdb5/mal/mal_session.c
+++ b/monetdb5/mal/mal_session.c
@@ -487,6 +487,10 @@ MSserveClient(void *dummy)
/*
* At this stage we should clean out the MAL block
*/
+ if (c->backup) {
+ freeSymbol(c->backup);
+ c->backup = 0;
+ }
if (c->curprg) {
Symbol s = c->curprg;
assert(0);
@@ -540,6 +544,10 @@ MALexitClient(Client c)
if (c->glb && c->curprg->def->errors == MAL_SUCCEED)
garbageCollector(c, c->curprg->def, c->glb, TRUE);
c->mode = FINISHCLIENT;
+ if (c->backup) {
+ freeSymbol(c->backup);
+ c->backup = 0;
+ }
c->curprg = NULL;
c->usermodule = NULL;
// only clear out the private module
@@ -700,8 +708,8 @@ MALparser(Client cntxt)
msg = cntxt->curprg->def->errors;
if( msg != MAL_SUCCEED){
cntxt->curprg->def->errors = MAL_SUCCEED;
- MSresetVariables(cntxt, cntxt->curprg->def, cntxt->glb,
oldstate.vtop);
- resetMalBlk(cntxt->curprg->def, 1);
+ //MSresetVariables(cntxt, cntxt->curprg->def, cntxt->glb,
oldstate.vtop);
+ //resetMalBlk(cntxt->curprg->def, 1);
return msg;
}
@@ -737,6 +745,7 @@ MALparser(Client cntxt)
getFunctionId(getSignature(cntxt->curprg)),
cntxt->usermodule->name);
#endif
+/*
insertSymbol(cntxt->usermodule, cntxt->curprg);
chkProgram(cntxt->usermodule, cntxt->curprg->def);
msg = cntxt->curprg->def->errors;
@@ -744,6 +753,7 @@ MALparser(Client cntxt)
if (msg) {
}
(void) MSinitClientPrg(cntxt,"user","main");
+*/
}
return msg;
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