parse_variable refactored, moved out the parsing of function bodies, easier memory handling

This commit is contained in:
Wolfgang (Blub) Bumiller 2012-08-24 17:23:47 +02:00
parent e1155eebc2
commit 20b8a191b1

805
parser.c
View file

@ -1910,25 +1910,351 @@ static bool create_vector_members(parser_t *parser, ast_value *var, varentry_t *
--i;
mem_d(ve[i].name);
ast_delete(ve[i].var);
ve[i].name = NULL;
ve[i].var = NULL;
} while (i);
return false;
}
static bool parse_function_body(parser_t *parser, ast_value *var)
{
ast_block *block = NULL;
ast_function *func;
ast_function *old;
size_t parami;
ast_expression *framenum = NULL;
ast_expression *nextthink = NULL;
/* None of the following have to be deleted */
ast_expression *fld_think, *fld_nextthink, *fld_frame;
ast_expression *gbl_time, *gbl_self;
bool has_frame_think;
bool retval = true;
has_frame_think = false;
old = parser->function;
if (var->expression.variadic) {
if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
"variadic function with implementation will not be able to access additional parameters"))
{
return false;
}
}
if (parser->tok == '[') {
/* got a frame definition: [ framenum, nextthink ]
* this translates to:
* self.frame = framenum;
* self.nextthink = time + 0.1;
* self.think = nextthink;
*/
nextthink = NULL;
fld_think = parser_find_field(parser, "think");
fld_nextthink = parser_find_field(parser, "nextthink");
fld_frame = parser_find_field(parser, "frame");
if (!fld_think || !fld_nextthink || !fld_frame) {
parseerror(parser, "cannot use [frame,think] notation without the required fields");
parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
return false;
}
gbl_time = parser_find_global(parser, "time");
gbl_self = parser_find_global(parser, "self");
if (!gbl_time || !gbl_self) {
parseerror(parser, "cannot use [frame,think] notation without the required globals");
parseerror(parser, "please declare the following globals: `time`, `self`");
return false;
}
if (!parser_next(parser))
return false;
framenum = parse_expression_leave(parser, true);
if (!framenum) {
parseerror(parser, "expected a framenumber constant in[frame,think] notation");
return false;
}
if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->isconst) {
ast_unref(framenum);
parseerror(parser, "framenumber in [frame,think] notation must be a constant");
return false;
}
if (parser->tok != ',') {
ast_unref(framenum);
parseerror(parser, "expected comma after frame number in [frame,think] notation");
parseerror(parser, "Got a %i\n", parser->tok);
return false;
}
if (!parser_next(parser)) {
ast_unref(framenum);
return false;
}
if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
{
/* qc allows the use of not-yet-declared functions here
* - this automatically creates a prototype */
varentry_t varent;
ast_value *thinkfunc;
ast_expression *functype = fld_think->expression.next;
thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
ast_unref(framenum);
parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
return false;
}
if (!parser_next(parser)) {
ast_unref(framenum);
ast_delete(thinkfunc);
return false;
}
varent.var = (ast_expression*)thinkfunc;
varent.name = util_strdup(thinkfunc->name);
if (!parser_t_globals_add(parser, varent)) {
ast_unref(framenum);
ast_delete(thinkfunc);
return false;
}
nextthink = (ast_expression*)thinkfunc;
} else {
nextthink = parse_expression_leave(parser, true);
if (!nextthink) {
ast_unref(framenum);
parseerror(parser, "expected a think-function in [frame,think] notation");
return false;
}
}
if (!ast_istype(nextthink, ast_value)) {
parseerror(parser, "think-function in [frame,think] notation must be a constant");
retval = false;
}
if (retval && parser->tok != ']') {
parseerror(parser, "expected closing `]` for [frame,think] notation");
retval = false;
}
if (retval && !parser_next(parser)) {
retval = false;
}
if (retval && parser->tok != '{') {
parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
retval = false;
}
if (!retval) {
ast_unref(nextthink);
ast_unref(framenum);
return false;
}
has_frame_think = true;
}
block = ast_block_new(parser_ctx(parser));
if (!block) {
parseerror(parser, "failed to allocate block");
if (has_frame_think) {
ast_unref(nextthink);
ast_unref(framenum);
}
return false;
}
if (has_frame_think) {
lex_ctx ctx;
ast_expression *self_frame;
ast_expression *self_nextthink;
ast_expression *self_think;
ast_expression *time_plus_1;
ast_store *store_frame;
ast_store *store_nextthink;
ast_store *store_think;
ctx = parser_ctx(parser);
self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
if (self_frame) ast_delete(self_frame);
if (self_nextthink) ast_delete(self_nextthink);
if (self_think) ast_delete(self_think);
if (time_plus_1) ast_delete(time_plus_1);
retval = false;
}
if (retval)
{
store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
if (!store_frame) {
ast_delete(self_frame);
retval = false;
}
if (!store_nextthink) {
ast_delete(self_nextthink);
retval = false;
}
if (!store_think) {
ast_delete(self_think);
retval = false;
}
if (!retval) {
if (store_frame) ast_delete(store_frame);
if (store_nextthink) ast_delete(store_nextthink);
if (store_think) ast_delete(store_think);
retval = false;
}
if (retval && !ast_block_exprs_add(block, (ast_expression*)store_frame)) {
ast_delete(store_frame);
ast_delete(store_nextthink);
ast_delete(store_think);
retval = false;
}
if (retval && !ast_block_exprs_add(block, (ast_expression*)store_nextthink)) {
ast_delete(store_nextthink);
ast_delete(store_think);
retval = false;
}
if (retval && !ast_block_exprs_add(block, (ast_expression*)store_think) )
{
ast_delete(store_think);
retval = false;
}
}
if (!retval) {
parseerror(parser, "failed to generate code for [frame,think]");
ast_unref(nextthink);
ast_unref(framenum);
ast_delete(block);
return false;
}
}
for (parami = 0; parami < var->expression.params_count; ++parami) {
size_t e;
varentry_t ve[3];
ast_value *param = var->expression.params[parami];
if (param->expression.vtype != TYPE_VECTOR &&
(param->expression.vtype != TYPE_FIELD ||
param->expression.next->expression.vtype != TYPE_VECTOR))
{
continue;
}
if (!create_vector_members(parser, param, ve)) {
ast_block_delete(block);
return false;
}
for (e = 0; e < 3; ++e) {
if (!parser_t_locals_add(parser, ve[e]))
break;
if (!ast_block_collect(block, ve[e].var)) {
parser->locals_count--;
break;
}
ve[e].var = NULL; /* collected */
}
if (e != e) {
parser->locals -= e;
do {
mem_d(ve[e].name);
--e;
} while (e);
ast_block_delete(block);
return false;
}
}
func = ast_function_new(ast_ctx(var), var->name, var);
if (!func) {
parseerror(parser, "failed to allocate function for `%s`", var->name);
ast_block_delete(block);
goto enderr;
}
if (!parser_t_functions_add(parser, func)) {
parseerror(parser, "failed to allocate slot for function `%s`", var->name);
ast_block_delete(block);
goto enderrfn;
}
parser->function = func;
if (!parse_block_into(parser, block, true)) {
ast_block_delete(block);
goto enderrfn;
}
if (!ast_function_blocks_add(func, block)) {
ast_block_delete(block);
goto enderrfn;
}
parser->function = old;
while (parser->locals_count)
retval = retval && parser_pop_local(parser);
if (parser->tok == ';')
return parser_next(parser);
else if (opts_standard == COMPILER_QCC)
parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
return retval;
enderrfn:
ast_function_delete(func);
var->constval.vfunc = NULL;
enderr:
while (parser->locals_count) {
parser->locals_count--;
mem_d(parser->locals[parser->locals_count].name);
}
parser->function = old;
return false;
}
static bool parse_variable(parser_t *parser, ast_block *localblock)
{
bool isfunc = false;
lex_ctx ctx;
ast_value *var;
varentry_t varent;
bool isfunc = false;
lex_ctx ctx;
ast_value *var = NULL;
bool cleanvar = false;
varentry_t varent;
varentry_t ve[3];
ast_expression *olddecl;
ast_value *typevar;
ast_value *typevar;
bool hadproto;
bool isparam;
bool retval = true;
/* go */
int basetype = parser_token(parser)->constval.t;
if (!parser_next(parser)) {
@ -1942,33 +2268,36 @@ static bool parse_variable(parser_t *parser, ast_block *localblock)
while (true)
{
hadproto = false;
olddecl = NULL;
isparam = false;
hadproto = false;
olddecl = NULL;
isparam = false;
varent.name = NULL;
ve[0].name = ve[1].name = ve[2].name = NULL;
ve[0].var = ve[1].var = ve[2].var = NULL;
ctx = parser_ctx(parser);
var = ast_value_copy(typevar);
cleanvar = true;
if (!var) {
ast_delete(typevar);
parseerror(parser, "failed to create variable");
return false;
retval = false;
goto cleanup;
}
if (parser->tok != TOKEN_IDENT) {
parseerror(parser, "expected variable name");
ast_value_delete(typevar);
ast_value_delete(var);
return false;
retval = false;
goto cleanup;
}
if (!isfunc) {
if (!localblock && (olddecl = parser_find_global(parser, parser_tokval(parser)))) {
ast_value_delete(typevar);
ast_value_delete(var);
parseerror(parser, "global `%s` already declared here: %s:%i",
parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
return false;
retval = false;
goto cleanup;
}
if (localblock) {
@ -1978,24 +2307,24 @@ static bool parse_variable(parser_t *parser, ast_block *localblock)
if (olddecl)
{
if (!isparam) {
ast_value_delete(typevar);
ast_value_delete(var);
parseerror(parser, "local `%s` already declared here: %s:%i",
parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
return false;
retval = false;
goto cleanup;
}
}
if( (!isparam && olddecl) || (olddecl = parser_find_local(parser, parser_tokval(parser), 0, &isparam)) )
if( (!isparam && olddecl) ||
(olddecl = parser_find_local(parser, parser_tokval(parser), 0, &isparam))
)
{
if (parsewarning(parser, WARN_LOCAL_SHADOWS,
"local `%s` is shadowing a parameter", parser_tokval(parser)))
{
ast_value_delete(typevar);
ast_value_delete(var);
parseerror(parser, "local `%s` already declared here: %s:%i",
parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
return false;
retval = false;
goto cleanup;
}
}
}
@ -2004,21 +2333,20 @@ static bool parse_variable(parser_t *parser, ast_block *localblock)
if (olddecl)
{
ast_value_delete(var);
var = NULL;
if (isparam &&
parsewarning(parser, WARN_LOCAL_SHADOWS,
"a parameter is shadowing local `%s`", parser_tokval(parser)))
{
ast_value_delete(typevar);
ast_value_delete(var);
return false;
retval = false;
goto cleanup;
}
else if (!isparam)
{
parseerror(parser, "local `%s` already declared here: %s:%i",
parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
ast_value_delete(typevar);
ast_value_delete(var);
return false;
retval = false;
goto cleanup;
}
goto nextvar;
}
@ -2028,9 +2356,8 @@ static bool parse_variable(parser_t *parser, ast_block *localblock)
if (!ast_value_set_name(var, parser_tokval(parser))) {
parseerror(parser, "failed to set variable name\n");
ast_value_delete(typevar);
ast_value_delete(var);
return false;
retval = false;
goto cleanup;
}
if (isfunc) {
@ -2047,16 +2374,13 @@ static bool parse_variable(parser_t *parser, ast_block *localblock)
if (olddecl) {
/* we had a prototype */
if (!ast_istype(olddecl, ast_value)) {
/* theoretically not possible you think?
* well:
* vector v;
/* vector v;
* void() v_x = {}
* got it?
*/
parseerror(parser, "cannot declare a function with the same name as a vector's member: %s",
parser_tokval(parser));
ast_value_delete(var);
return false;
retval = false;
goto cleanup;
}
proto = (ast_value*)olddecl;
@ -2067,15 +2391,14 @@ static bool parse_variable(parser_t *parser, ast_block *localblock)
*/
fval = ast_value_new(ctx, var->name, TYPE_FUNCTION);
if (!fval) {
ast_value_delete(var);
ast_value_delete(typevar);
if (fval) ast_value_delete(fval);
return false;
retval = false;
goto cleanup;
}
fval->expression.next = (ast_expression*)var;
MEM_VECTOR_MOVE(&var->expression, params, &fval->expression, params);
fval->expression.variadic = var->expression.variadic;
var = NULL;
/* we compare the type late here, but it's easier than
* messing with the parameter-vector etc. earlier
@ -2087,8 +2410,8 @@ static bool parse_variable(parser_t *parser, ast_block *localblock)
proto->name,
ast_ctx(proto).file, ast_ctx(proto).line);
ast_value_delete(fval);
ast_value_delete(typevar);
return false;
retval = false;
goto cleanup;
}
/* copy over the parameter names */
for (param = 0; param < fval->expression.params_count; ++param)
@ -2108,82 +2431,76 @@ static bool parse_variable(parser_t *parser, ast_block *localblock)
if (!hadproto) {
varent.name = util_strdup(var->name);
varent.var = (ast_expression*)var;
if (!localblock) {
if (!(retval = parser_t_globals_add(parser, varent)))
goto cleanup;
} else {
if (!(retval = parser_t_locals_add(parser, varent)))
goto cleanup;
if (!(retval = ast_block_locals_add(localblock, var))) {
parser->locals_count--;
goto cleanup;
}
}
if (var->expression.vtype == TYPE_VECTOR)
{
varentry_t ve[3];
size_t e;
if (!create_vector_members(parser, var, ve)) {
ast_delete(var);
ast_value_delete(typevar);
return false;
retval = false;
goto cleanup;
}
if (!localblock) {
(void)!parser_t_globals_add(parser, varent);
(void)!parser_t_globals_add(parser, ve[0]);
(void)!parser_t_globals_add(parser, ve[1]);
(void)!parser_t_globals_add(parser, ve[2]);
for (e = 0; e < 3; ++e) {
if (!(retval = parser_t_globals_add(parser, ve[e])))
break;
}
if (!retval) {
parser->globals_count -= e+1;
goto cleanup;
}
} else {
(void)!parser_t_locals_add(parser, varent);
(void)!parser_t_locals_add(parser, ve[0]);
(void)!parser_t_locals_add(parser, ve[1]);
(void)!parser_t_locals_add(parser, ve[2]);
if (!ast_block_locals_add(localblock, var) ||
!ast_block_collect(localblock, ve[0].var) ||
!ast_block_collect(localblock, ve[1].var) ||
!ast_block_collect(localblock, ve[2].var))
{
(void)!parser_pop_local(parser);
(void)!parser_pop_local(parser);
(void)!parser_pop_local(parser);
(void)!parser_pop_local(parser);
ast_value_delete(var);
ast_value_delete(typevar);
return false;
for (e = 0; e < 3; ++e) {
if (!(retval = parser_t_locals_add(parser, ve[e])))
break;
if (!(retval = ast_block_collect(localblock, ve[e].var)))
break;
ve[e].var = NULL; /* from here it's being collected in the block */
}
if (!retval) {
parser->locals_count -= e+1;
localblock->locals_count--;
goto cleanup;
}
}
ve[0].name = ve[1].name = ve[2].name = NULL;
ve[0].var = ve[1].var = ve[2].var = NULL;
}
else
{
if ( (!localblock && !parser_t_globals_add(parser, varent)) ||
( localblock && !parser_t_locals_add(parser, varent)) )
{
ast_value_delete(var);
ast_value_delete(typevar);
return false;
}
if (localblock && !ast_block_locals_add(localblock, var))
{
(void)!parser_pop_local(parser);
ast_value_delete(var);
ast_value_delete(typevar);
return false;
}
}
cleanvar = false;
varent.name = NULL;
}
nextvar:
if (!parser_next(parser)) {
ast_value_delete(typevar);
ast_value_delete(var);
return false;
}
if (!(retval = parser_next(parser)))
goto cleanup;
if (parser->tok == ';') {
ast_value_delete(typevar);
if (!parser_next(parser))
return false;
return true;
return parser_next(parser);
}
if (parser->tok == ',') {
/* another var */
if (!parser_next(parser)) {
ast_delete(typevar);
return false;
}
if (!(retval = parser_next(parser)))
goto cleanup;
continue;
}
/* NOTE: only 'typevar' needs to be deleted from here on, so 'cleanup' won't be used
* to avoid having too many gotos
*/
if (localblock && opts_standard == COMPILER_QCC) {
if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
"initializing expression turns variable `%s` into a constant in this standard",
@ -2195,8 +2512,11 @@ nextvar:
}
if (parser->tok != '=') {
if (opts_standard == COMPILER_QCC)
parseerror(parser, "missing semicolon");
else
parseerror(parser, "missing semicolon or initializer");
ast_value_delete(typevar);
parseerror(parser, "expected '=' or ';'");
return false;
}
@ -2254,283 +2574,19 @@ nextvar:
ast_value_delete(typevar);
return false;
}
} else if (parser->tok == '{' || parser->tok == '[') {
/* function body */
ast_function *func;
ast_function *old;
ast_block *block;
size_t parami;
ast_expression *fld_think, *fld_nextthink, *fld_frame;
ast_expression *gbl_time, *gbl_self;
ast_expression *framenum, *nextthink;
bool has_frame_think;
has_frame_think = false;
old = parser->function;
if (var->expression.variadic) {
if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
"variadic function with implementation will not be able to access additional parameters"))
{
ast_value_delete(typevar);
return false;
}
}
}
else if (parser->tok == '{' || parser->tok == '[')
{
ast_value_delete(typevar);
if (localblock) {
parseerror(parser, "cannot declare functions within functions");
ast_value_delete(typevar);
return false;
}
if (parser->tok == '[') {
/* got a frame definition: [ framenum, nextthink ]
* this translates to:
* self.frame = framenum;
* self.nextthink = time + 0.1;
* self.think = nextthink;
*/
nextthink = NULL;
fld_think = parser_find_field(parser, "think");
fld_nextthink = parser_find_field(parser, "nextthink");
fld_frame = parser_find_field(parser, "frame");
if (!fld_think || !fld_nextthink || !fld_frame) {
parseerror(parser, "cannot use [frame,think] notation without the required fields");
parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
ast_value_delete(typevar);
return false;
}
gbl_time = parser_find_global(parser, "time");
gbl_self = parser_find_global(parser, "self");
if (!gbl_time || !gbl_self) {
parseerror(parser, "cannot use [frame,think] notation without the required globals");
parseerror(parser, "please declare the following globals: `time`, `self`");
ast_value_delete(typevar);
return false;
}
if (!parser_next(parser)) {
ast_value_delete(typevar);
return false;
}
framenum = parse_expression_leave(parser, true);
if (!framenum) {
parseerror(parser, "expected a framenumber constant in[frame,think] notation");
ast_value_delete(typevar);
return false;
}
if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->isconst) {
ast_unref(framenum);
parseerror(parser, "framenumber in [frame,think] notation must be a constant");
}
if (parser->tok != ',') {
ast_unref(framenum);
parseerror(parser, "expected comma after frame number in [frame,think] notation");
parseerror(parser, "Got a %i\n", parser->tok);
ast_value_delete(typevar);
return false;
}
if (!parser_next(parser)) {
ast_unref(framenum);
ast_value_delete(typevar);
return false;
}
if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
{
/* qc allows the use of not-yet-declared functions here
* - this automatically creates a prototype */
varentry_t varent;
ast_value *thinkfunc;
ast_expression *functype = fld_think->expression.next;
thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
ast_unref(framenum);
parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
ast_value_delete(typevar);
return false;
}
if (!parser_next(parser)) {
ast_unref(framenum);
ast_value_delete(typevar);
return false;
}
varent.var = (ast_expression*)thinkfunc;
varent.name = util_strdup(thinkfunc->name);
(void)!parser_t_globals_add(parser, varent);
nextthink = (ast_expression*)thinkfunc;
} else {
nextthink = parse_expression_leave(parser, true);
if (!nextthink) {
ast_unref(framenum);
parseerror(parser, "expected a think-function in [frame,think] notation");
ast_value_delete(typevar);
return false;
}
}
if (!ast_istype(nextthink, ast_value)) {
ast_unref(nextthink);
ast_unref(framenum);
parseerror(parser, "think-function in [frame,think] notation must be a constant");
}
if (parser->tok != ']') {
parseerror(parser, "expected closing `]` for [frame,think] notation");
ast_unref(nextthink);
ast_unref(framenum);
ast_value_delete(typevar);
return false;
}
if (!parser_next(parser)) {
ast_unref(nextthink);
ast_unref(framenum);
ast_value_delete(typevar);
return false;
}
if (parser->tok != '{') {
parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
ast_unref(nextthink);
ast_unref(framenum);
ast_value_delete(typevar);
return false;
}
has_frame_think = true;
}
block = ast_block_new(parser_ctx(parser));
if (!block) {
parseerror(parser, "failed to allocate block");
ast_value_delete(typevar);
if (!parse_function_body(parser, var)) {
return false;
}
if (has_frame_think) {
lex_ctx ctx;
ast_expression *self_frame;
ast_expression *self_nextthink;
ast_expression *self_think;
ast_expression *time_plus_1;
ast_store *store_frame;
ast_store *store_nextthink;
ast_store *store_think;
ctx = parser_ctx(parser);
self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
if (!ast_block_exprs_add(block, (ast_expression*)store_frame) ||
!ast_block_exprs_add(block, (ast_expression*)store_nextthink) ||
!ast_block_exprs_add(block, (ast_expression*)store_think) )
{
parseerror(parser, "failed to generate code for [frame,think]");
ast_block_delete(block);
ast_value_delete(typevar);
return false;
}
}
for (parami = 0; parami < var->expression.params_count; ++parami) {
ast_value *param = var->expression.params[parami];
varentry_t ve[3];
if (param->expression.vtype != TYPE_VECTOR &&
(param->expression.vtype != TYPE_FIELD ||
param->expression.next->expression.vtype != TYPE_VECTOR))
{
continue;
}
if (!create_vector_members(parser, param, ve)) {
ast_block_delete(block);
ast_value_delete(typevar);
return false;
}
(void)!parser_t_locals_add(parser, ve[0]);
(void)!parser_t_locals_add(parser, ve[1]);
(void)!parser_t_locals_add(parser, ve[2]);
if (!ast_block_collect(block, ve[0].var) ||
!ast_block_collect(block, ve[1].var) ||
!ast_block_collect(block, ve[2].var) )
{
(void)!parser_pop_local(parser);
(void)!parser_pop_local(parser);
(void)!parser_pop_local(parser);
ast_block_delete(block);
ast_value_delete(typevar);
return false;
}
}
func = ast_function_new(ast_ctx(var), var->name, var);
if (!func) {
parseerror(parser, "failed to allocate function for `%s`", var->name);
ast_block_delete(block);
parser->function = old;
ast_value_delete(typevar);
return false;
}
if (!parser_t_functions_add(parser, func)) {
parseerror(parser, "failed to allocate slot for function `%s`", var->name);
ast_function_delete(func);
var->constval.vfunc = NULL;
ast_value_delete(typevar);
ast_block_delete(block);
parser->function = old;
return false;
}
parser->function = func;
if (!parse_block_into(parser, block, true)) {
ast_block_delete(block);
parser->function = old;
ast_value_delete(typevar);
return false;
}
parser->function = old;
while (parser->locals_count)
retval = retval && parser_pop_local(parser);
if (!block) {
ast_value_delete(typevar);
return false;
}
if (!ast_function_blocks_add(func, block)) {
ast_block_delete(block);
ast_value_delete(typevar);
return false;
}
if (parser->tok == ';') {
ast_value_delete(typevar);
return parser_next(parser) || parser->tok == TOKEN_EOF;
}
else if (opts_standard == COMPILER_QCC)
parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
ast_value_delete(typevar);
return retval;
return true;
} else {
ast_expression *cexp;
ast_value *cval;
@ -2571,6 +2627,19 @@ nextvar:
ast_value_delete(typevar);
return true;
}
cleanup:
ast_delete(typevar);
if (var && cleanvar) ast_delete(var);
if (varent.name) mem_d(varent.name);
if (ve[0].name) mem_d(ve[0].name);
if (ve[1].name) mem_d(ve[1].name);
if (ve[2].name) mem_d(ve[2].name);
if (ve[0].var) mem_d(ve[0].var);
if (ve[1].var) mem_d(ve[1].var);
if (ve[2].var) mem_d(ve[2].var);
return retval;
}
static bool parser_global_statement(parser_t *parser)