Object* createFunctionObject(char *name) {
Object* f = (Object*) malloc(sizeof(Object));
strcpy(f->name, name);
f->kind = OBJ_FUNCTION;
f->funcAttrs = (FunctionAttributes*) malloc(sizeof(FunctionAttributes));
f->funcAttrs->paramList = NULL;
f->funcAttrs->returnType = NULL;
f->funcAttrs->scope = createScope(f, symtab->currentScope);
return f;
}
Object* createFunctionObject(char *name) {
Object* obj = (Object*) malloc(sizeof(Object));
strcpy(obj->name, name);
obj->kind = OBJ_FUNCTION;
obj->funcAttrs = (FunctionAttributes*) malloc(sizeof(FunctionAttributes));
obj->funcAttrs->returnType = NULL;
obj->funcAttrs->paramList = NULL;
obj->funcAttrs->paramCount = 0;
obj->funcAttrs->codeAddress = DC_VALUE;
obj->funcAttrs->scope = createScope(obj);
return obj;
}
auto_ptr<Scope> ScriptEngine::getPooledScope( const string& pool ){
if ( ! scopeCache.get() ){
scopeCache.reset( new ScopeCache() );
}
Scope * s = scopeCache->get( pool );
if ( ! s ){
s = createScope();
}
auto_ptr<Scope> p;
p.reset( new PooledScope( pool , s ) );
return p;
}
llvm::Value * Generator::visit(Function & node)
{
std::vector<llvm::Type *> parameterTypes;
for (auto i : node.parameters) {
parameterTypes.push_back(i->type->getType(typeSys));
}
std::string name = node.name;
if (node.name == "Main") {
name = "main";
} else {
name = node.getVirtualName();
}
auto type = llvm::FunctionType::get(node.type->getType(typeSys), parameterTypes, false);
auto function = llvm::Function::Create(type, llvm::Function::ExternalLinkage, name, module.get());
lastFunction = &node;
// create the block for this function.
builder.SetInsertPoint(llvm::BasicBlock::Create(*context, "entry", function));
// create the scope.
createScope();
int i = 0;
for (auto & arg : function->args()) {
auto parameter = node.parameters[i];
arg.setName("param." + parameter->name);
auto value = parameter->accept(this);
builder.CreateStore(&arg, value);
scope().add(parameter->name, value);
i++;
}
node.block->accept(this);
if (builder.GetInsertBlock()->getTerminator() == nullptr) {
builder.CreateRetVoid();
}
popScope();
return function;
}
void P2PSession::run()
{
acceptConnection(createScope(boost::posix_time::milliseconds(m_timeout)));
}
int
yyparse (void)
{
int yystate;
/* Number of tokens to shift before error messages enabled. */
int yyerrstatus;
/* The stacks and their tools:
'yyss': related to states.
'yyvs': related to semantic values.
Refer to the stacks through separate pointers, to allow yyoverflow
to reallocate them elsewhere. */
/* The state stack. */
yytype_int16 yyssa[YYINITDEPTH];
yytype_int16 *yyss;
yytype_int16 *yyssp;
/* The semantic value stack. */
YYSTYPE yyvsa[YYINITDEPTH];
YYSTYPE *yyvs;
YYSTYPE *yyvsp;
YYSIZE_T yystacksize;
int yyn;
int yyresult;
/* Lookahead token as an internal (translated) token number. */
int yytoken = 0;
/* The variables used to return semantic value and location from the
action routines. */
YYSTYPE yyval;
#if YYERROR_VERBOSE
/* Buffer for error messages, and its allocated size. */
char yymsgbuf[128];
char *yymsg = yymsgbuf;
YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
#endif
#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N))
/* The number of symbols on the RHS of the reduced rule.
Keep to zero when no symbol should be popped. */
int yylen = 0;
yyssp = yyss = yyssa;
yyvsp = yyvs = yyvsa;
yystacksize = YYINITDEPTH;
YYDPRINTF ((stderr, "Starting parse\n"));
yystate = 0;
yyerrstatus = 0;
yynerrs = 0;
yychar = YYEMPTY; /* Cause a token to be read. */
goto yysetstate;
/*------------------------------------------------------------.
| yynewstate -- Push a new state, which is found in yystate. |
`------------------------------------------------------------*/
yynewstate:
/* In all cases, when you get here, the value and location stacks
have just been pushed. So pushing a state here evens the stacks. */
yyssp++;
yysetstate:
*yyssp = yystate;
if (yyss + yystacksize - 1 <= yyssp)
{
/* Get the current used size of the three stacks, in elements. */
YYSIZE_T yysize = yyssp - yyss + 1;
#ifdef yyoverflow
{
/* Give user a chance to reallocate the stack. Use copies of
these so that the &'s don't force the real ones into
memory. */
YYSTYPE *yyvs1 = yyvs;
yytype_int16 *yyss1 = yyss;
/* Each stack pointer address is followed by the size of the
data in use in that stack, in bytes. This used to be a
conditional around just the two extra args, but that might
be undefined if yyoverflow is a macro. */
yyoverflow (YY_("memory exhausted"),
&yyss1, yysize * sizeof (*yyssp),
&yyvs1, yysize * sizeof (*yyvsp),
&yystacksize);
yyss = yyss1;
yyvs = yyvs1;
}
#else /* no yyoverflow */
# ifndef YYSTACK_RELOCATE
goto yyexhaustedlab;
# else
/* Extend the stack our own way. */
if (YYMAXDEPTH <= yystacksize)
goto yyexhaustedlab;
yystacksize *= 2;
if (YYMAXDEPTH < yystacksize)
yystacksize = YYMAXDEPTH;
{
yytype_int16 *yyss1 = yyss;
union yyalloc *yyptr =
(union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
if (! yyptr)
goto yyexhaustedlab;
YYSTACK_RELOCATE (yyss_alloc, yyss);
YYSTACK_RELOCATE (yyvs_alloc, yyvs);
# undef YYSTACK_RELOCATE
if (yyss1 != yyssa)
YYSTACK_FREE (yyss1);
}
# endif
#endif /* no yyoverflow */
yyssp = yyss + yysize - 1;
yyvsp = yyvs + yysize - 1;
YYDPRINTF ((stderr, "Stack size increased to %lu\n",
(unsigned long int) yystacksize));
if (yyss + yystacksize - 1 <= yyssp)
YYABORT;
}
YYDPRINTF ((stderr, "Entering state %d\n", yystate));
if (yystate == YYFINAL)
YYACCEPT;
goto yybackup;
/*-----------.
| yybackup. |
`-----------*/
yybackup:
/* Do appropriate processing given the current state. Read a
lookahead token if we need one and don't already have one. */
/* First try to decide what to do without reference to lookahead token. */
yyn = yypact[yystate];
if (yypact_value_is_default (yyn))
goto yydefault;
/* Not known => get a lookahead token if don't already have one. */
/* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
if (yychar == YYEMPTY)
{
YYDPRINTF ((stderr, "Reading a token: "));
yychar = yylex ();
}
if (yychar <= YYEOF)
{
yychar = yytoken = YYEOF;
YYDPRINTF ((stderr, "Now at end of input.\n"));
}
else
{
yytoken = YYTRANSLATE (yychar);
YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
}
/* If the proper action on seeing token YYTOKEN is to reduce or to
detect an error, take that action. */
yyn += yytoken;
if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
goto yydefault;
yyn = yytable[yyn];
if (yyn <= 0)
{
if (yytable_value_is_error (yyn))
goto yyerrlab;
yyn = -yyn;
goto yyreduce;
}
/* Count tokens shifted since error; after three, turn off error
status. */
if (yyerrstatus)
yyerrstatus--;
/* Shift the lookahead token. */
YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
/* Discard the shifted token. */
yychar = YYEMPTY;
yystate = yyn;
YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
*++yyvsp = yylval;
YY_IGNORE_MAYBE_UNINITIALIZED_END
goto yynewstate;
/*-----------------------------------------------------------.
| yydefault -- do the default action for the current state. |
`-----------------------------------------------------------*/
yydefault:
yyn = yydefact[yystate];
if (yyn == 0)
goto yyerrlab;
goto yyreduce;
/*-----------------------------.
| yyreduce -- Do a reduction. |
`-----------------------------*/
yyreduce:
/* yyn is the number of a rule to reduce with. */
yylen = yyr2[yyn];
/* If YYLEN is nonzero, implement the default value of the action:
'$$ = $1'.
Otherwise, the following line sets YYVAL to garbage.
This behavior is undocumented and Bison
users should not rely upon it. Assigning to YYVAL
unconditionally makes the parser a bit smaller, and it avoids a
GCC warning that YYVAL may be used uninitialized. */
yyval = yyvsp[1-yylen];
YY_REDUCE_PRINT (yyn);
switch (yyn)
{
case 2:
#line 49 "l8t8.y" /* yacc.c:1646 */
{
printf("> ");
}
#line 1249 "y.tab.c" /* yacc.c:1646 */
break;
case 3:
#line 52 "l8t8.y" /* yacc.c:1646 */
{
eval((yyvsp[-1].astNode));
//printf("Program output: \n");
//printvalue(eval($2));
freeNode((yyvsp[-1].astNode));
printf("\n> ");
}
#line 1261 "y.tab.c" /* yacc.c:1646 */
break;
case 4:
#line 62 "l8t8.y" /* yacc.c:1646 */
{
//printf("yacc: NUMBER%lf", $1);
(yyval.astNode) = number((yyvsp[0].dval));
}
#line 1270 "y.tab.c" /* yacc.c:1646 */
break;
case 5:
#line 67 "l8t8.y" /* yacc.c:1646 */
{
//static scoping: there will be multiple symbol tables associated with the root of the expression within which they are defined
(yyval.astNode)=createScope((yyvsp[-3].astNode), (yyvsp[-1].astNode));
}
#line 1280 "y.tab.c" /* yacc.c:1646 */
break;
case 6:
#line 72 "l8t8.y" /* yacc.c:1646 */
{
(yyval.astNode) = createSymbol((yyvsp[0].sval));
}
#line 1288 "y.tab.c" /* yacc.c:1646 */
break;
case 7:
#line 75 "l8t8.y" /* yacc.c:1646 */
{
// printf("yacc: LPAREN FUNC expr RPAREN\n");
(yyval.astNode) = function((yyvsp[-2].sval), (yyvsp[-1].astNode), 0);
//printf("%s(%lf)", $2, $3);
}
#line 1298 "y.tab.c" /* yacc.c:1646 */
break;
case 8:
#line 80 "l8t8.y" /* yacc.c:1646 */
{
// printf("LPAREN FUNC expr expr RPAREN\n");
(yyval.astNode) = function((yyvsp[-3].sval), (yyvsp[-2].astNode), (yyvsp[-1].astNode));
}
#line 1307 "y.tab.c" /* yacc.c:1646 */
break;
case 9:
#line 84 "l8t8.y" /* yacc.c:1646 */
{
(yyval.astNode) = conditional((yyvsp[-3].astNode), (yyvsp[-2].astNode), (yyvsp[-1].astNode));
}
#line 1315 "y.tab.c" /* yacc.c:1646 */
break;
case 10:
#line 88 "l8t8.y" /* yacc.c:1646 */
{
//printf("QUIT\n");
exit(0);
}
#line 1324 "y.tab.c" /* yacc.c:1646 */
break;
case 11:
#line 92 "l8t8.y" /* yacc.c:1646 */
{
printf("error\n");
//printf("> ");
}
#line 1333 "y.tab.c" /* yacc.c:1646 */
break;
case 12:
#line 99 "l8t8.y" /* yacc.c:1646 */
{
(yyval.astNode) = (yyvsp[0].astNode);
}
#line 1341 "y.tab.c" /* yacc.c:1646 */
break;
case 13:
#line 102 "l8t8.y" /* yacc.c:1646 */
{
//$1 pointer to list so far $2 new node, return node of head of list
(yyval.astNode) = symbolTableInsert((yyvsp[-1].astNode), (yyvsp[0].astNode));
}
#line 1350 "y.tab.c" /* yacc.c:1646 */
break;
case 14:
#line 106 "l8t8.y" /* yacc.c:1646 */
{
(yyval.astNode) = createLetElem((yyvsp[-3].sval), (yyvsp[-2].sval), (yyvsp[-1].astNode));
}
#line 1358 "y.tab.c" /* yacc.c:1646 */
break;
case 15:
#line 109 "l8t8.y" /* yacc.c:1646 */
{
(yyval.astNode) = createLetElem((yyvsp[-3].sval), (yyvsp[-2].sval), (yyvsp[-1].astNode));
}
#line 1366 "y.tab.c" /* yacc.c:1646 */
break;
case 16:
#line 112 "l8t8.y" /* yacc.c:1646 */
{
(yyval.astNode) = createLetElem(NULL, (yyvsp[-2].sval), (yyvsp[-1].astNode));
}
#line 1374 "y.tab.c" /* yacc.c:1646 */
break;
#line 1378 "y.tab.c" /* yacc.c:1646 */
default: break;
}
/* User semantic actions sometimes alter yychar, and that requires
that yytoken be updated with the new translation. We take the
approach of translating immediately before every use of yytoken.
One alternative is translating here after every semantic action,
but that translation would be missed if the semantic action invokes
YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an
incorrect destructor might then be invoked immediately. In the
case of YYERROR or YYBACKUP, subsequent parser actions might lead
to an incorrect destructor call or verbose syntax error message
before the lookahead is translated. */
YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
YYPOPSTACK (yylen);
yylen = 0;
YY_STACK_PRINT (yyss, yyssp);
*++yyvsp = yyval;
/* Now 'shift' the result of the reduction. Determine what state
that goes to, based on the state we popped back to and the rule
number reduced by. */
yyn = yyr1[yyn];
yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
yystate = yytable[yystate];
else
yystate = yydefgoto[yyn - YYNTOKENS];
goto yynewstate;
/*--------------------------------------.
| yyerrlab -- here on detecting error. |
`--------------------------------------*/
yyerrlab:
/* Make sure we have latest lookahead translation. See comments at
user semantic actions for why this is necessary. */
yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
/* If not already recovering from an error, report this error. */
if (!yyerrstatus)
{
++yynerrs;
#if ! YYERROR_VERBOSE
yyerror (YY_("syntax error"));
#else
# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
yyssp, yytoken)
{
char const *yymsgp = YY_("syntax error");
int yysyntax_error_status;
yysyntax_error_status = YYSYNTAX_ERROR;
if (yysyntax_error_status == 0)
yymsgp = yymsg;
else if (yysyntax_error_status == 1)
{
if (yymsg != yymsgbuf)
YYSTACK_FREE (yymsg);
yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
if (!yymsg)
{
yymsg = yymsgbuf;
yymsg_alloc = sizeof yymsgbuf;
yysyntax_error_status = 2;
}
else
{
yysyntax_error_status = YYSYNTAX_ERROR;
yymsgp = yymsg;
}
}
yyerror (yymsgp);
if (yysyntax_error_status == 2)
goto yyexhaustedlab;
}
# undef YYSYNTAX_ERROR
#endif
}
if (yyerrstatus == 3)
{
/* If just tried and failed to reuse lookahead token after an
error, discard it. */
if (yychar <= YYEOF)
{
/* Return failure if at end of input. */
if (yychar == YYEOF)
YYABORT;
}
else
{
yydestruct ("Error: discarding",
yytoken, &yylval);
yychar = YYEMPTY;
}
}
/* Else will try to reuse lookahead token after shifting the error
token. */
goto yyerrlab1;
/*---------------------------------------------------.
| yyerrorlab -- error raised explicitly by YYERROR. |
`---------------------------------------------------*/
yyerrorlab:
/* Pacify compilers like GCC when the user code never invokes
YYERROR and the label yyerrorlab therefore never appears in user
code. */
if (/*CONSTCOND*/ 0)
goto yyerrorlab;
/* Do not reclaim the symbols of the rule whose action triggered
this YYERROR. */
YYPOPSTACK (yylen);
yylen = 0;
YY_STACK_PRINT (yyss, yyssp);
yystate = *yyssp;
goto yyerrlab1;
/*-------------------------------------------------------------.
| yyerrlab1 -- common code for both syntax error and YYERROR. |
`-------------------------------------------------------------*/
yyerrlab1:
yyerrstatus = 3; /* Each real token shifted decrements this. */
for (;;)
{
yyn = yypact[yystate];
if (!yypact_value_is_default (yyn))
{
yyn += YYTERROR;
if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
{
yyn = yytable[yyn];
if (0 < yyn)
break;
}
}
/* Pop the current state because it cannot handle the error token. */
if (yyssp == yyss)
YYABORT;
yydestruct ("Error: popping",
yystos[yystate], yyvsp);
YYPOPSTACK (1);
yystate = *yyssp;
YY_STACK_PRINT (yyss, yyssp);
}
YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
*++yyvsp = yylval;
YY_IGNORE_MAYBE_UNINITIALIZED_END
/* Shift the error token. */
YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
yystate = yyn;
goto yynewstate;
/*-------------------------------------.
| yyacceptlab -- YYACCEPT comes here. |
`-------------------------------------*/
yyacceptlab:
yyresult = 0;
goto yyreturn;
/*-----------------------------------.
| yyabortlab -- YYABORT comes here. |
`-----------------------------------*/
yyabortlab:
yyresult = 1;
goto yyreturn;
#if !defined yyoverflow || YYERROR_VERBOSE
/*-------------------------------------------------.
| yyexhaustedlab -- memory exhaustion comes here. |
`-------------------------------------------------*/
yyexhaustedlab:
yyerror (YY_("memory exhausted"));
yyresult = 2;
/* Fall through. */
#endif
yyreturn:
if (yychar != YYEMPTY)
{
/* Make sure we have latest lookahead translation. See comments at
user semantic actions for why this is necessary. */
yytoken = YYTRANSLATE (yychar);
yydestruct ("Cleanup: discarding lookahead",
yytoken, &yylval);
}
/* Do not reclaim the symbols of the rule whose action triggered
this YYABORT or YYACCEPT. */
YYPOPSTACK (yylen);
YY_STACK_PRINT (yyss, yyssp);
while (yyssp != yyss)
{
yydestruct ("Cleanup: popping",
yystos[*yyssp], yyvsp);
YYPOPSTACK (1);
}
#ifndef yyoverflow
if (yyss != yyssa)
YYSTACK_FREE (yyss);
#endif
#if YYERROR_VERBOSE
if (yymsg != yymsgbuf)
YYSTACK_FREE (yymsg);
#endif
return yyresult;
}
