static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
sy_elem e;
e.etype = 0;
+ e.off = 0;
e.out = v;
e.block = NULL;
e.ctx = ctx;
static sy_elem syblock(lex_ctx ctx, ast_block *v) {
sy_elem e;
e.etype = 0;
+ e.off = 0;
e.out = (ast_expression*)v;
e.block = v;
e.ctx = ctx;
static sy_elem syop(lex_ctx ctx, const oper_info *op) {
sy_elem e;
e.etype = 1 + (op - operators);
+ e.off = 0;
e.out = NULL;
e.block = NULL;
e.ctx = ctx;
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;
+ ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
+ ast_expression *gbl_time = NULL, *gbl_self = NULL;
bool has_frame_think;
bool retval = true;
}
ve[e].var = NULL; /* collected */
}
- if (e != e) {
+ if (e != 3) {
parser->locals -= e;
do {
mem_d(ve[e].name);
lex_ctx ctx;
ast_value *var = NULL;
+ ast_value *fld = NULL;
bool cleanvar = false;
varentry_t varent;
bool isparam;
bool retval = true;
+ bool isfield = false;
/* go */
- int basetype = parser_token(parser)->constval.t;
+ int basetype;
+
+ if (parser->tok == '.') {
+ isfield = true;
+ if (!parser_next(parser)) {
+ parseerror(parser, "expected typename for field definition");
+ return false;
+ }
+ }
+
+ basetype = parser_token(parser)->constval.t;
if (!parser_next(parser)) {
parseerror(parser, "expected variable definition");
}
if (!localblock) {
- if (!strcmp(parser_tokval(parser), "end_sys_globals"))
+ bool was_end = false;
+ if (!strcmp(parser_tokval(parser), "end_sys_globals")) {
parser->crc_globals = parser->globals_count;
- else if (!strcmp(parser_tokval(parser), "end_sys_fields"))
+ was_end = true;
+ }
+ else if (!strcmp(parser_tokval(parser), "end_sys_fields")) {
parser->crc_fields = parser->fields_count;
- }
-
- if (!isfunc) {
- if (!localblock && (olddecl = parser_find_global(parser, parser_tokval(parser)))) {
- parseerror(parser, "global `%s` already declared here: %s:%i",
- parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
- retval = false;
- goto cleanup;
+ was_end = true;
}
-
- if (localblock) {
- olddecl = parser_find_local(parser, parser_tokval(parser), parser->blocklocal, &isparam);
- if (opts_standard == COMPILER_GMQCC)
+ if (isfield && was_end) {
+ if (parsewarning(parser, WARN_END_SYS_FIELDS,
+ "global '%s' hint should not be a field",
+ parser_tokval(parser)))
{
- if (olddecl)
- {
- if (!isparam) {
- parseerror(parser, "local `%s` already declared here: %s:%i",
- parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
- retval = false;
- goto cleanup;
- }
- }
-
- 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)))
- {
- parseerror(parser, "local `%s` already declared here: %s:%i",
- parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
- retval = false;
- goto cleanup;
- }
- }
- }
- else
- {
- if (olddecl)
- {
- ast_value_delete(var);
- var = NULL;
- if (isparam &&
- parsewarning(parser, WARN_LOCAL_SHADOWS,
- "a parameter is shadowing local `%s`", parser_tokval(parser)))
- {
- 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);
- retval = false;
- goto cleanup;
- }
- goto nextvar;
- }
+ retval = false;
+ goto cleanup;
}
+
}
}
var = fval;
}
+ if (isfield) {
+ ast_value *tmp;
+ fld = ast_value_new(ctx, var->name, TYPE_FIELD);
+ fld->expression.next = (ast_expression*)var;
+ tmp = var;
+ var = fld;
+ fld = tmp;
+ }
+ else
+ fld = var;
+
+ if (!isfunc) {
+ if (!localblock)
+ {
+ olddecl = parser_find_global(parser, var->name);
+ if (olddecl) {
+ if (!isfield) {
+ parseerror(parser, "global `%s` already declared here: %s:%i",
+ var->name, ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
+ retval = false;
+ goto cleanup;
+ }
+ else if (opts_standard == COMPILER_QCC) {
+ parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
+ parseerror(parser, "global `%s` already declared here: %s:%i",
+ var->name, ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
+ retval = false;
+ goto cleanup;
+ }
+ }
+ olddecl = parser_find_field(parser, var->name);
+ if (olddecl && opts_standard == COMPILER_QCC) {
+ if (!isfield) {
+ parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
+ parseerror(parser, "field `%s` already declared here: %s:%i",
+ var->name, ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
+ retval = false;
+ goto cleanup;
+ }
+ else
+ {
+ if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
+ var->name, ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line))
+ {
+ retval = false;
+ goto cleanup;
+ }
+ if (!ast_compare_type(olddecl, (ast_expression*)var)) {
+ parseerror(parser, "field %s has previously been declared with a different type here: %s:%i",
+ var->name, ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
+ retval = false;
+ goto cleanup;
+ }
+ ast_delete(var);
+ var = NULL;
+ goto nextvar;
+ }
+ }
+ else if (olddecl) {
+ parseerror(parser, "field `%s` already declared here: %s:%i",
+ var->name, ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
+ retval = false;
+ goto cleanup;
+ }
+ }
+ else /* if it's a local: */
+ {
+ olddecl = parser_find_local(parser, var->name, parser->blocklocal, &isparam);
+ if (opts_standard == COMPILER_GMQCC)
+ {
+ if (olddecl)
+ {
+ if (!isparam) {
+ parseerror(parser, "local `%s` already declared here: %s:%i",
+ var->name, ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
+ retval = false;
+ goto cleanup;
+ }
+ }
+
+ if( (!isparam && olddecl) ||
+ (olddecl = parser_find_local(parser, var->name, 0, &isparam))
+ )
+ {
+ if (parsewarning(parser, WARN_LOCAL_SHADOWS,
+ "local `%s` is shadowing a parameter", var->name))
+ {
+ parseerror(parser, "local `%s` already declared here: %s:%i",
+ var->name, ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
+ retval = false;
+ goto cleanup;
+ }
+ }
+ }
+ else
+ {
+ if (olddecl)
+ {
+ if (isparam &&
+ parsewarning(parser, WARN_LOCAL_SHADOWS,
+ "a parameter is shadowing local `%s`", var->name))
+ {
+ ast_value_delete(var);
+ var = NULL;
+ retval = false;
+ goto cleanup;
+ }
+ else if (!isparam)
+ {
+ parseerror(parser, "local `%s` already declared here: %s:%i",
+ var->name, ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
+ ast_value_delete(var);
+ var = NULL;
+ retval = false;
+ goto cleanup;
+ }
+ ast_value_delete(var);
+ var = NULL;
+ goto nextvar;
+ }
+ }
+ }
+ }
+
+
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;
+ if (!isfield) {
+ if (!(retval = parser_t_globals_add(parser, varent)))
+ goto cleanup;
+ }
+ else {
+ if (!(retval = parser_t_fields_add(parser, varent)))
+ goto cleanup;
+ }
} else {
if (!(retval = parser_t_locals_add(parser, varent)))
goto cleanup;
}
}
- if (var->expression.vtype == TYPE_VECTOR)
+ if (fld->expression.vtype == TYPE_VECTOR)
{
size_t e;
if (!create_vector_members(parser, var, ve)) {
if (!localblock) {
for (e = 0; e < 3; ++e) {
- if (!(retval = parser_t_globals_add(parser, ve[e])))
- break;
+ if (!isfield) {
+ if (!(retval = parser_t_globals_add(parser, ve[e])))
+ break;
+ }
+ else {
+ if (!(retval = parser_t_fields_add(parser, ve[e])))
+ break;
+ }
}
if (!retval) {
parser->globals_count -= e+1;
continue;
}
+ if (!localblock && isfield) {
+ parseerror(parser, "missing semicolon");
+ ast_value_delete(typevar);
+ return false;
+ }
+
/* NOTE: only 'typevar' needs to be deleted from here on, so 'cleanup' won't be used
* to avoid having too many gotos
*/
static bool parser_global_statement(parser_t *parser)
{
- if (parser->tok == TOKEN_TYPENAME)
+ if (parser->tok == TOKEN_TYPENAME || parser->tok == '.')
{
return parse_variable(parser, NULL);
}
/* handle 'var' and 'const' */
return false;
}
- else if (parser->tok == '.')
- {
- ast_value *var;
- ast_value *typevar;
- ast_value *fld;
- ast_expression *oldex;
- bool isfunc = false;
- int basetype;
- lex_ctx ctx = parser_ctx(parser);
- varentry_t varent;
-
- /* entity-member declaration */
- if (!parser_next(parser) || parser->tok != TOKEN_TYPENAME) {
- parseerror(parser, "expected member variable definition");
- return false;
- }
-
- /* remember the base/return type */
- basetype = parser_token(parser)->constval.t;
-
- /* parse into the declaration */
- if (!parser_next(parser)) {
- parseerror(parser, "expected field definition");
- return false;
- }
-
- /* parse the field type fully */
- typevar = var = parse_type(parser, basetype, &isfunc);
- if (!var)
- return false;
-
- while (true) {
- var = ast_value_copy(typevar);
- /* now the field name */
- if (parser->tok != TOKEN_IDENT) {
- parseerror(parser, "expected field name");
- ast_delete(var);
- return false;
- }
-
- /* check for an existing field
- * in original qc we also have to check for an existing
- * global named like the field
- */
- if (opts_standard == COMPILER_QCC) {
- if (parser_find_global(parser, parser_tokval(parser))) {
- parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
- ast_delete(var);
- return false;
- }
- }
-
- if (isfunc) {
- ast_value *fval;
- fval = ast_value_new(ctx, var->name, TYPE_FUNCTION);
- if (!fval) {
- ast_value_delete(var);
- return false;
- }
- fval->expression.next = (ast_expression*)var;
- MEM_VECTOR_MOVE(&var->expression, params, &fval->expression, params);
- fval->expression.variadic = var->expression.variadic;
- var = fval;
- }
-
- if (!strcmp(parser_tokval(parser), "end_sys_fields")) {
- if (parsewarning(parser, WARN_END_SYS_FIELDS, "by convention end_sys_fields should be declared as global, rather than a field")) {
- ast_value_delete(var);
- return false;
- }
- }
-
- /* turn it into a field */
- fld = ast_value_new(ctx, parser_tokval(parser), TYPE_FIELD);
- fld->expression.next = (ast_expression*)var;
-
- if ( (oldex = parser_find_field(parser, parser_tokval(parser)))) {
- if (ast_istype(oldex, ast_member)) {
- parseerror(parser, "cannot declare a field with the same name as a vector component, component %s has been declared here: %s:%i",
- parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line);
- ast_delete(fld);
- return false;
- }
- if (!ast_istype(oldex, ast_value)) {
- /* not possible / sanity check */
- parseerror(parser, "internal error: %s is not an ast_value", parser_tokval(parser));
- ast_delete(fld);
- return false;
- }
-
- if (!ast_compare_type(oldex, (ast_expression*)fld)) {
- parseerror(parser, "field %s has previously been declared with a different type here: %s:%i",
- parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line);
- ast_delete(fld);
- return false;
- } else {
- if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` has already been declared here: %s:%i",
- parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line))
- {
- ast_delete(fld);
- return false;
- }
- }
-
- ast_delete(fld);
- goto nextfield;
- }
-
- varent.var = (ast_expression*)fld;
- varent.name = util_strdup(fld->name);
- (void)!parser_t_fields_add(parser, varent);
-
- if (var->expression.vtype == TYPE_VECTOR)
- {
- /* create _x, _y and _z fields as well */
- varentry_t ve[3];
- if (!create_vector_members(parser, fld, ve)) {
- ast_delete(fld);
- return false;
- }
- (void)!parser_t_fields_add(parser, ve[0]);
- (void)!parser_t_fields_add(parser, ve[1]);
- (void)!parser_t_fields_add(parser, ve[2]);
- }
-
-nextfield:
- if (!parser_next(parser)) {
- parseerror(parser, "expected semicolon or another field name");
- return false;
- }
- if (parser->tok == ';')
- break;
- if (parser->tok != ',' || !parser_next(parser)) {
- parseerror(parser, "expected semicolon or another field name");
- return false;
- }
- }
- ast_delete(typevar);
-
- /* skip the semicolon */
- if (!parser_next(parser))
- return parser->tok == TOKEN_EOF;
-
- return true;
- }
else if (parser->tok == '$')
{
if (!parser_next(parser)) {
return true;
}
-bool parser_compile(const char *filename)
+bool parser_compile()
{
- parser->lex = lex_open(filename);
- if (!parser->lex) {
- printf("failed to open file \"%s\"\n", filename);
- return false;
- }
-
/* initial lexer/parser state */
parser->lex->flags.noops = true;
return !parser->errors;
}
+bool parser_compile_file(const char *filename)
+{
+ parser->lex = lex_open(filename);
+ if (!parser->lex) {
+ printf("failed to open file \"%s\"\n", filename);
+ return false;
+ }
+ return parser_compile();
+}
+
+bool parser_compile_string(const char *name, const char *str)
+{
+ parser->lex = lex_open_string(str, strlen(str), name);
+ if (!parser->lex) {
+ printf("failed to create lexer for string \"%s\"\n", name);
+ return false;
+ }
+ return parser_compile();
+}
+
void parser_cleanup()
{
size_t i;
projects / xonotic / gmqcc.git / blobdiff