*/
#include <string.h>
#include <math.h>
+
#include "parser.h"
#define PARSER_HT_LOCALS 2
static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname);
static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname);
-static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
+static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef, bool *is_vararg);
static void parseerror(parser_t *parser, const char *fmt, ...)
{
if (ast_istype(expr, ast_value)) {
ast_value *val = (ast_value*)expr;
if (val->cvq == CV_CONST) {
- if (val->name[0] == '#')
+ if (val->name[0] == '#') {
compile_error(ctx, "invalid assignment to a literal constant");
- else
+ return false;
+ }
+ /*
+ * To work around quakeworld we must elide the error and make it
+ * a warning instead.
+ */
+ if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_QCC)
compile_error(ctx, "assignment to constant `%s`", val->name);
+ else
+ (void)!compile_warning(ctx, WARN_CONST_OVERWRITE, "assignment to constant `%s`", val->name);
return false;
}
}
#define NotSameType(T) \
(exprs[0]->vtype != exprs[1]->vtype || \
exprs[0]->vtype != T)
+
switch (op->id)
{
default:
out = exprs[0];
break;
case opid2('-','P'):
- if (!(out = fold_op(parser->fold, op, exprs))) {
- switch (exprs[0]->vtype) {
- case TYPE_FLOAT:
- out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
- (ast_expression*)parser->fold->imm_float[0],
- exprs[0]);
- break;
- case TYPE_VECTOR:
- out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
- (ast_expression*)parser->fold->imm_vector[0],
- exprs[0]);
- break;
- default:
- compile_error(ctx, "invalid types used in expression: cannot negate type %s",
+ if ((out = fold_op(parser->fold, op, exprs)))
+ break;
+
+ if (exprs[0]->vtype != TYPE_FLOAT &&
+ exprs[0]->vtype != TYPE_VECTOR) {
+ compile_error(ctx, "invalid types used in unary expression: cannot negate type %s",
type_name[exprs[0]->vtype]);
- return false;
- }
+ return false;
}
+ out = (ast_expression*)ast_unary_new(ctx, (VINSTR_NEG_F-TYPE_FLOAT) + exprs[0]->vtype, exprs[0]);
break;
case opid2('!','P'):
if (!(out = fold_op(parser->fold, op, exprs))) {
switch (exprs[0]->vtype) {
case TYPE_FLOAT:
- out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
+ out = fold_binary(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
break;
case TYPE_VECTOR:
- out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
+ out = fold_binary(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
break;
default:
compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
if (!(out = fold_op(parser->fold, op, exprs))) {
switch (exprs[0]->vtype) {
case TYPE_FLOAT:
- out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
+ out = fold_binary(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
break;
case TYPE_VECTOR:
- out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
+ out = fold_binary(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
break;
default:
compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
switch (exprs[0]->vtype) {
case TYPE_FLOAT:
if (exprs[1]->vtype == TYPE_VECTOR)
- out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
+ out = fold_binary(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
else
- out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
+ out = fold_binary(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
break;
case TYPE_VECTOR:
if (exprs[1]->vtype == TYPE_FLOAT)
- out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
+ out = fold_binary(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
else
- out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
+ out = fold_binary(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
break;
default:
compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
}
if (!(out = fold_op(parser->fold, op, exprs))) {
if (exprs[0]->vtype == TYPE_FLOAT)
- out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
+ out = fold_binary(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
else {
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
* since scalar ^ vector is not allowed.
*/
if (exprs[0]->vtype == TYPE_FLOAT) {
- out = (ast_expression*)ast_binary_new(ctx,
+ out = fold_binary(ctx,
(op->id == opid1('^') ? VINSTR_BITXOR : op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
exprs[0], exprs[1]);
} else {
* Bitop all the values of the vector components against the
* vectors components in question.
*/
- out = (ast_expression*)ast_binary_new(ctx,
+ out = fold_binary(ctx,
(op->id == opid1('^') ? VINSTR_BITXOR_V : op->id == opid1('|') ? VINSTR_BITOR_V : VINSTR_BITAND_V),
exprs[0], exprs[1]);
} else {
- out = (ast_expression*)ast_binary_new(ctx,
+ out = fold_binary(ctx,
(op->id == opid1('^') ? VINSTR_BITXOR_VF : op->id == opid1('|') ? VINSTR_BITOR_VF : VINSTR_BITAND_VF),
exprs[0], exprs[1]);
}
}
}
}
- out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
+ out = fold_binary(ctx, generated_op, exprs[0], exprs[1]);
}
break;
}
if (!(out = fold_op(parser->fold, op, exprs))) {
- compile_error(ctx, "cross product for non-constant vectors unimplemented");
- return false;
+ out = fold_binary(
+ parser_ctx(parser),
+ VINSTR_CROSS,
+ exprs[0],
+ exprs[1]
+ );
}
break;
}
if (!(out = fold_op(parser->fold, op, exprs))) {
+ /* This whole block is NOT fold_binary safe */
ast_binary *eq = ast_binary_new(ctx, INSTR_EQ_F, exprs[0], exprs[1]);
eq->refs = AST_REF_NONE;
return false;
}
if (!(out = fold_op(parser->fold, op, exprs)))
- out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
+ out = fold_binary(ctx, generated_op, exprs[0], exprs[1]);
break;
case opid2('!', '='):
if (exprs[0]->vtype != exprs[1]->vtype) {
return false;
}
if (!(out = fold_op(parser->fold, op, exprs)))
- out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->vtype], exprs[0], exprs[1]);
+ out = fold_binary(ctx, type_ne_instr[exprs[0]->vtype], exprs[0], exprs[1]);
break;
case opid2('=', '='):
if (exprs[0]->vtype != exprs[1]->vtype) {
return false;
}
if (!(out = fold_op(parser->fold, op, exprs)))
- out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->vtype], exprs[0], exprs[1]);
+ out = fold_binary(ctx, type_eq_instr[exprs[0]->vtype], exprs[0], exprs[1]);
break;
case opid1('='):
}
if (!out)
return false;
- out = (ast_expression*)ast_binary_new(ctx, subop,
- out,
- (ast_expression*)parser->fold->imm_float[1]);
+ out = fold_binary(ctx, subop,
+ out,
+ (ast_expression*)parser->fold->imm_float[1]);
+
break;
case opid2('+','='):
case opid2('-','='):
out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
exprs[0], exprs[1]);
} else {
- out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
- (ast_expression*)parser->fold->imm_float[1],
- exprs[1]);
+ out = fold_binary(ctx, INSTR_DIV_F,
+ (ast_expression*)parser->fold->imm_float[1],
+ exprs[1]);
if (!out) {
compile_error(ctx, "internal error: failed to generate division");
return false;
else
assignop = type_store_instr[exprs[0]->vtype];
if (exprs[0]->vtype == TYPE_FLOAT)
- out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
+ out = fold_binary(ctx, INSTR_BITAND, exprs[0], exprs[1]);
else
- out = (ast_expression*)ast_binary_new(ctx, VINSTR_BITAND_V, exprs[0], exprs[1]);
+ out = fold_binary(ctx, VINSTR_BITAND_V, exprs[0], exprs[1]);
if (!out)
return false;
(void)check_write_to(ctx, exprs[0]);
}
if (!(out = fold_op(parser->fold, op, exprs))) {
if (exprs[0]->vtype == TYPE_FLOAT) {
- out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, (ast_expression*)parser->fold->imm_float[2], exprs[0]);
+ out = fold_binary(ctx, INSTR_SUB_F, (ast_expression*)parser->fold->imm_float[2], exprs[0]);
} else {
- out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, (ast_expression*)parser->fold->imm_vector[1], exprs[0]);
+ out = fold_binary(ctx, INSTR_SUB_V, (ast_expression*)parser->fold->imm_vector[1], exprs[0]);
}
}
break;
* sy->out should I be doing here?
*/
sy->out[fid] = syexp(foldval->node.context, foldval);
- vec_shrinkby(sy->out, 1);
+ vec_shrinkby(sy->out, paramcount);
vec_free(exprs);
return true;
return NULL;
}
- typevar = parse_typename(parser, NULL, NULL);
+ typevar = parse_typename(parser, NULL, NULL, NULL);
if (!typevar) {
ast_unref(idx);
return NULL;
return false;
}
}
+ else if (!strcmp(parser_tokval(parser), "accumulate")) {
+ flags |= AST_FLAG_ACCUMULATE;
+ if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
+ parseerror(parser, "`accumulate` attribute has no parameters, expected `]]`");
+ *cvq = CV_WRONG;
+ return false;
+ }
+ }
else if (!strcmp(parser_tokval(parser), "alias") && !(flags & AST_FLAG_ALIAS)) {
flags |= AST_FLAG_ALIAS;
*message = NULL;
else
{
(void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
- return false;
+
+ /* skip to eol */
+ while (!parse_eol(parser)) {
+ parser_next(parser);
+ }
+
+ return true;
}
return true;
if (parser->tok == TOKEN_IDENT)
typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
- if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
+ if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.' || parser->tok == TOKEN_DOTS)
{
/* local variable */
if (!block) {
}
if (var->hasvalue) {
- parseerror(parser, "function `%s` declared with multiple bodies", var->name);
- ast_block_delete(block);
- goto enderr;
- }
+ if (!(var->expression.flags & AST_FLAG_ACCUMULATE)) {
+ parseerror(parser, "function `%s` declared with multiple bodies", var->name);
+ ast_block_delete(block);
+ goto enderr;
+ }
+ func = var->constval.vfunc;
- 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 (!func) {
+ parseerror(parser, "internal error: NULL function: `%s`", var->name);
+ ast_block_delete(block);
+ goto enderr;
+ }
+ } else {
+ 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;
+ }
+ vec_push(parser->functions, func);
}
- vec_push(parser->functions, func);
parser_enterblock(parser);
}
}
- if (var->argcounter) {
+ if (var->argcounter && !func->argc) {
ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
parser_addlocal(parser, argc->name, (ast_expression*)argc);
func->argc = argc;
}
- if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
+ if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC && !func->varargs) {
char name[1024];
ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
varargs->expression.flags |= AST_FLAG_IS_VARARG;
vec_push(func->blocks, block);
-
parser->function = old;
if (!parser_leaveblock(parser))
retval = false;
return parser_create_array_getter_impl(parser, array);
}
-static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
{
lex_ctx_t ctx;
/* parse variables until we hit a closing paren */
while (parser->tok != ')') {
+ bool is_varargs = false;
+
if (!first) {
/* there must be commas between them */
if (parser->tok != ',') {
}
first = false;
- if (parser->tok == TOKEN_DOTS) {
+ param = parse_typename(parser, NULL, NULL, &is_varargs);
+ if (!param && !is_varargs)
+ goto on_error;
+ if (is_varargs) {
/* '...' indicates a varargs function */
variadic = true;
- if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
+ if (parser->tok != ')' && parser->tok != TOKEN_IDENT) {
parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
goto on_error;
}
goto on_error;
}
}
- }
- else
- {
- /* for anything else just parse a typename */
- param = parse_typename(parser, NULL, NULL);
- if (!param)
- goto on_error;
+ } else {
vec_push(params, param);
if (param->expression.vtype >= TYPE_VARIANT) {
char tname[1024]; /* typename is reserved in C++ */
* void() foo(), bar
* then the type-information 'void()' can be stored in 'storebase'
*/
-static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
+static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef, bool *is_vararg)
{
ast_value *var, *tmp;
lex_ctx_t ctx;
bool wasarray = false;
size_t morefields = 0;
+ bool vararg = (parser->tok == TOKEN_DOTS);
+
ctx = parser_ctx(parser);
/* types may start with a dot */
- if (parser->tok == '.') {
+ if (parser->tok == '.' || parser->tok == TOKEN_DOTS) {
isfield = true;
+ if (parser->tok == TOKEN_DOTS)
+ morefields += 2;
/* if we parsed a dot we need a typename now */
if (!parser_next(parser)) {
parseerror(parser, "expected typename for field definition");
/* Further dots are handled seperately because they won't be part of the
* basetype
*/
- while (parser->tok == '.') {
- ++morefields;
+ while (true) {
+ if (parser->tok == '.')
+ ++morefields;
+ else if (parser->tok == TOKEN_DOTS)
+ morefields += 3;
+ else
+ break;
+ vararg = false;
if (!parser_next(parser)) {
parseerror(parser, "expected typename for field definition");
return NULL;
if (parser->tok == TOKEN_IDENT)
cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
+ if (vararg && is_vararg) {
+ *is_vararg = true;
+ return NULL;
+ }
parseerror(parser, "expected typename");
return NULL;
}
}
/* there may be a name now */
- if (parser->tok == TOKEN_IDENT) {
+ if (parser->tok == TOKEN_IDENT || parser->tok == TOKEN_KEYWORD) {
+ if (!strcmp(parser_tokval(parser), "break"))
+ (void)!parsewarning(parser, WARN_BREAKDEF, "break definition ignored (suggest removing it)");
+ else if (parser->tok == TOKEN_KEYWORD)
+ goto leave;
+
name = util_strdup(parser_tokval(parser));
+
/* parse on */
if (!parser_next(parser)) {
ast_delete(var);
}
}
+ leave:
/* now this may be an array */
if (parser->tok == '[') {
wasarray = true;
ast_value *typevar, *oldtype;
ast_expression *old;
- typevar = parse_typename(parser, NULL, NULL);
+ typevar = parse_typename(parser, NULL, NULL, NULL);
if (!typevar)
return false;
parseerror(parser, "`static` qualifier is not supported in global scope");
/* get the first complete variable */
- var = parse_typename(parser, &basetype, cached_typedef);
+ var = parse_typename(parser, &basetype, cached_typedef, NULL);
if (!var) {
if (basetype)
ast_delete(basetype);
var->expression.flags & AST_FLAG_ALIAS)
var->desc = vstring;
+ if (parser_find_global(parser, var->name) && var->expression.flags & AST_FLAG_ALIAS) {
+ parseerror(parser, "function aliases cannot be forward declared");
+ retval = false;
+ goto cleanup;
+ }
+
+
/* Part 1:
* check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
* Also: if there was a prototype, `var` will be deleted and set to `proto` which
retval = false;
goto cleanup;
}
+ /* doing this here as the above is just for a single scope */
old = parser_find_local(parser, var->name, 0, &isparam);
if (old && isparam) {
if (parsewarning(parser, WARN_LOCAL_SHADOWS,
if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
ast_delete(var);
if (ast_istype(old, ast_value))
- var = (ast_value*)old;
+ var = proto = (ast_value*)old;
else {
var = NULL;
goto skipvar;
return false;
}
- if (var->expression.vtype != find->vtype) {
+ if (!ast_compare_type((ast_expression*)var, find)) {
char ty1[1024];
char ty2[1024];
if (parser->tok != '{' || var->expression.vtype != TYPE_FUNCTION) {
if (parser->tok != '=') {
- if (!strcmp(parser_tokval(parser), "break")) {
- if (!parser_next(parser)) {
- parseerror(parser, "error parsing break definition");
- break;
- }
- (void)!parsewarning(parser, WARN_BREAKDEF, "break definition ignored (suggest removing it)");
- } else {
- parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
- break;
- }
+ parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
+ break;
}
if (!parser_next(parser)) {
if (parser->tok == TOKEN_IDENT)
istype = parser_find_typedef(parser, parser_tokval(parser), 0);
- if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
+ if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.' || parser->tok == TOKEN_DOTS)
{
return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
}
}
}
if (!parser->assign_op) {
- printf("internal error: initializing parser: failed to find assign operator\n");
+ con_err("internal error: initializing parser: failed to find assign operator\n");
mem_d(parser);
return NULL;
}
projects / xonotic / gmqcc.git / blobdiff