#include "gmqcc.h"
#include "lexer.h"
-#define PARSER_HT_FIELDS 0
-#define PARSER_HT_GLOBALS 1
/* beginning of locals */
#define PARSER_HT_LOCALS 2
#define PARSER_HT_SIZE 1024
#define TYPEDEF_HT_SIZE 16
+enum parser_pot { POT_PAREN, POT_TERNARY1, POT_TERNARY2 };
typedef struct {
lex_file *lex;
int tok;
* If we reach a 'comma' operator in a ternary without a paren,
* we shall trigger -Wternary-precedence.
*/
- enum { POT_PAREN, POT_TERNARY1, POT_TERNARY2 } *pot;
+ enum parser_pot *pot;
/* pragma flags */
bool noref;
static void parseerror(parser_t *parser, const char *fmt, ...)
{
- va_list ap;
+ va_list ap;
- parser->errors++;
+ parser->errors++;
- va_start(ap, fmt);
+ va_start(ap, fmt);
con_vprintmsg(LVL_ERROR, parser->lex->tok.ctx.file, parser->lex->tok.ctx.line, "parse error", fmt, ap);
- va_end(ap);
+ va_end(ap);
}
/* returns true if it counts as an error */
static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
{
bool r;
- va_list ap;
- va_start(ap, fmt);
- r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
- va_end(ap);
- return r;
+ va_list ap;
+ va_start(ap, fmt);
+ r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
+ va_end(ap);
+ return r;
}
static bool GMQCC_WARN genwarning(lex_ctx ctx, int warntype, const char *fmt, ...)
{
bool r;
- va_list ap;
- va_start(ap, fmt);
- r = vcompile_warning(ctx, warntype, fmt, ap);
- va_end(ap);
- return r;
+ va_list ap;
+ va_start(ap, fmt);
+ r = vcompile_warning(ctx, warntype, fmt, ap);
+ va_end(ap);
+ return r;
}
/**********************************************************************
{
if (str && !*str) {
/* actually dup empty strings */
- char *out = mem_a(1);
+ char *out = (char*)mem_a(1);
*out = 0;
return out;
}
static ast_expression* parser_find_field(parser_t *parser, const char *name)
{
- return util_htget(parser->htfields, name);
+ return ( ast_expression*)util_htget(parser->htfields, name);
}
static ast_expression* parser_find_global(parser_t *parser, const char *name)
{
- return util_htget(parser->htglobals, name);
+ return (ast_expression*)util_htget(parser->htglobals, name);
}
static ast_expression* parser_find_param(parser_t *parser, const char *name)
*isparam = false;
for (i = vec_size(parser->variables); i > upto;) {
--i;
- if ( (e = util_htgeth(parser->variables[i], name, hash)) )
+ if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
return e;
}
*isparam = true;
return true;
}
+static bool immediate_is_true(lex_ctx ctx, ast_value *v)
+{
+ switch (v->expression.vtype) {
+ case TYPE_FLOAT:
+ return !!v->constval.vfloat;
+ case TYPE_INTEGER:
+ return !!v->constval.vint;
+ case TYPE_VECTOR:
+ if (OPTS_FLAG(CORRECT_LOGIC))
+ return v->constval.vvec.x &&
+ v->constval.vvec.y &&
+ v->constval.vvec.z;
+ else
+ return !!(v->constval.vvec.x);
+ case TYPE_STRING:
+ if (!v->constval.vstring)
+ return false;
+ if (v->constval.vstring && OPTS_FLAG(TRUE_EMPTY_STRINGS))
+ return true;
+ return !!v->constval.vstring[0];
+ default:
+ compile_error(ctx, "internal error: immediate_is_true on invalid type");
+ return !!v->constval.vfunc;
+ }
+}
+
static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
{
const oper_info *op;
(exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
exprs[0]->expression.vtype != T)
#define CanConstFold1(A) \
- (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST))
+ (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST) &&\
+ (A)->expression.vtype != TYPE_FUNCTION)
#define CanConstFold(A, B) \
(CanConstFold1(A) && CanConstFold1(B))
#define ConstV(i) (asvalue[(i)]->constval.vvec)
#endif
if (CanConstFold(exprs[0], exprs[1]))
{
- out = (ast_expression*)parser_const_float(parser,
- (generated_op == INSTR_OR ? (ConstF(0) || ConstF(1)) : (ConstF(0) && ConstF(1))));
+ if (OPTS_FLAG(PERL_LOGIC)) {
+ if (immediate_is_true(ctx, asvalue[0]))
+ out = exprs[1];
+ }
+ else
+ out = (ast_expression*)parser_const_float(parser,
+ ( (generated_op == INSTR_OR)
+ ? (immediate_is_true(ctx, asvalue[0]) || immediate_is_true(ctx, asvalue[1]))
+ : (immediate_is_true(ctx, asvalue[0]) && immediate_is_true(ctx, asvalue[1])) )
+ ? 0 : 1);
}
else
{
parseerror(parser, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
return false;
}
- if (OPTS_FLAG(CORRECT_LOGIC)) {
- /* non-floats need to be NOTed */
- for (i = 0; i < 2; ++i) {
- if (exprs[i]->expression.vtype != TYPE_FLOAT) {
- if (type_not_instr[exprs[i]->expression.vtype] == AINSTR_END) {
- ast_type_to_string(exprs[0], ty1, sizeof(ty1));
- ast_type_to_string(exprs[1], ty2, sizeof(ty2));
- parseerror(parser, "invalid types for logical operation with -fcorrect-logic: %s and %s", ty1, ty2);
- return false;
- }
- out = (ast_expression*)ast_unary_new(ctx, type_not_instr[exprs[i]->expression.vtype], exprs[i]);
- if (!out)
- break;
- exprs[i] = out; out = NULL;
+ for (i = 0; i < 2; ++i) {
+ if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->expression.vtype == TYPE_VECTOR) {
+ out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
+ if (!out) break;
+ out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
+ if (!out) break;
+ exprs[i] = out; out = NULL;
+ if (OPTS_FLAG(PERL_LOGIC)) {
+ /* here we want to keep the right expressions' type */
+ break;
}
- if (OPTS_FLAG(PERL_LOGIC))
+ }
+ else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->expression.vtype == TYPE_STRING) {
+ out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
+ if (!out) break;
+ out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
+ if (!out) break;
+ exprs[i] = out; out = NULL;
+ if (OPTS_FLAG(PERL_LOGIC)) {
+ /* here we want to keep the right expressions' type */
break;
+ }
}
}
out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
val = parser_const_string(parser, parser_tokval(parser), true);
wantop = true;
if (!val)
- return false;
+ return NULL;
vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
DEBUGSHUNTDO(con_out("push string\n"));
wantop = true;
val = parser_const_float(parser, (parser_token(parser)->constval.f));
if (!val)
- return false;
+ return NULL;
vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
DEBUGSHUNTDO(con_out("push %g\n", parser_token(parser)->constval.f));
}
wantop = true;
val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
if (!val)
- return false;
+ return NULL;
vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
DEBUGSHUNTDO(con_out("push %i\n", parser_token(parser)->constval.i));
}
wantop = true;
val = parser_const_string(parser, parser_tokval(parser), false);
if (!val)
- return false;
+ return NULL;
vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
DEBUGSHUNTDO(con_out("push string\n"));
}
wantop = true;
val = parser_const_vector(parser, parser_token(parser)->constval.v);
if (!val)
- return false;
+ return NULL;
vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
DEBUGSHUNTDO(con_out("push '%g %g %g'\n",
parser_token(parser)->constval.v.x,
util_htset(vec_last(parser->variables), name, (void*)e);
}
+static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
+{
+ bool ifnot = false;
+ ast_unary *unary;
+ ast_expression *prev;
+
+ if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING)
+ {
+ prev = cond;
+ cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
+ if (!cond) {
+ ast_unref(prev);
+ parseerror(parser, "internal error: failed to process condition");
+ return NULL;
+ }
+ ifnot = !ifnot;
+ }
+ else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR)
+ {
+ /* vector types need to be cast to true booleans */
+ ast_binary *bin = (ast_binary*)cond;
+ if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
+ {
+ /* in perl-logic, AND and OR take care of the -fcorrect-logic */
+ prev = cond;
+ cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
+ if (!cond) {
+ ast_unref(prev);
+ parseerror(parser, "internal error: failed to process condition");
+ return NULL;
+ }
+ ifnot = !ifnot;
+ }
+ }
+
+ unary = (ast_unary*)cond;
+ while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
+ {
+ cond = unary->operand;
+ unary->operand = NULL;
+ ast_delete(unary);
+ ifnot = !ifnot;
+ unary = (ast_unary*)cond;
+ }
+
+ if (!cond)
+ parseerror(parser, "internal error: failed to process condition");
+
+ if (ifnot) *_ifnot = !*_ifnot;
+ return cond;
+}
+
static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
{
ast_ifthen *ifthen;
- ast_expression *cond, *ontrue, *onfalse = NULL;
+ ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
bool ifnot = false;
lex_ctx ctx = parser_ctx(parser);
}
}
+ cond = process_condition(parser, cond, &ifnot);
+ if (!cond) {
+ if (ontrue) ast_delete(ontrue);
+ if (onfalse) ast_delete(onfalse);
+ return false;
+ }
+
if (ifnot)
ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
else
ast_loop *aloop;
ast_expression *cond, *ontrue;
+ bool ifnot = false;
+
lex_ctx ctx = parser_ctx(parser);
(void)block; /* not touching */
return false;
}
- aloop = ast_loop_new(ctx, NULL, cond, NULL, NULL, ontrue);
+ cond = process_condition(parser, cond, &ifnot);
+ if (!cond) {
+ ast_delete(ontrue);
+ return false;
+ }
+ aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
*out = (ast_expression*)aloop;
return true;
}
ast_loop *aloop;
ast_expression *cond, *ontrue;
+ bool ifnot = false;
+
lex_ctx ctx = parser_ctx(parser);
(void)block; /* not touching */
return false;
}
- aloop = ast_loop_new(ctx, NULL, NULL, cond, NULL, ontrue);
+ cond = process_condition(parser, cond, &ifnot);
+ if (!cond) {
+ ast_delete(ontrue);
+ return false;
+ }
+ aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
*out = (ast_expression*)aloop;
return true;
}
ast_loop *aloop;
ast_expression *initexpr, *cond, *increment, *ontrue;
ast_value *typevar;
- bool retval = true;
+
+ bool retval = true;
+ bool ifnot = false;
lex_ctx ctx = parser_ctx(parser);
if (!parse_statement_or_block(parser, &ontrue))
goto onerr;
- aloop = ast_loop_new(ctx, initexpr, cond, NULL, increment, ontrue);
+ if (cond) {
+ cond = process_condition(parser, cond, &ifnot);
+ if (!cond)
+ goto onerr;
+ }
+ aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
*out = (ast_expression*)aloop;
if (!parser_leaveblock(parser))
bool had_var = false;
bool had_noref = false;
bool had_noreturn = false;
+ bool had_attrib = false;
+ *cvq = CV_NONE;
for (;;) {
- if (!strcmp(parser_tokval(parser), "const"))
+ if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
+ had_attrib = true;
+ /* parse an attribute */
+ if (!parser_next(parser)) {
+ parseerror(parser, "expected attribute after `[[`");
+ *cvq = CV_WRONG;
+ return false;
+ }
+ if (!strcmp(parser_tokval(parser), "noreturn")) {
+ had_noreturn = true;
+ if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
+ parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
+ *cvq = CV_WRONG;
+ return false;
+ }
+ }
+ else if (!strcmp(parser_tokval(parser), "noref")) {
+ had_noref = true;
+ if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
+ parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
+ *cvq = CV_WRONG;
+ return false;
+ }
+ }
+ else
+ {
+ /* Skip tokens until we hit a ]] */
+ (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
+ while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
+ if (!parser_next(parser)) {
+ parseerror(parser, "error inside attribute");
+ *cvq = CV_WRONG;
+ return false;
+ }
+ }
+ }
+ }
+ else if (!strcmp(parser_tokval(parser), "const"))
had_const = true;
else if (!strcmp(parser_tokval(parser), "var"))
had_var = true;
had_var = true;
else if (!strcmp(parser_tokval(parser), "noref"))
had_noref = true;
- else if (!strcmp(parser_tokval(parser), "noreturn"))
- had_noreturn = true;
- else if (!had_const && !had_var && !had_noref && !had_noreturn) {
+ else if (!had_const && !had_var && !had_noref && !had_noreturn && !had_attrib) {
return false;
}
else
size_t len = strlen(var->name);
for (i = 0; i < 3; ++i) {
- char *name = mem_a(len+3);
+ char *name = (char*)mem_a(len+3);
memcpy(name, var->name, len);
name[len+0] = '_';
name[len+1] = 'x'+i;
goto on_error;
vec_push(params, param);
if (param->expression.vtype >= TYPE_VARIANT) {
- char typename[1024];
- ast_type_to_string((ast_expression*)param, typename, sizeof(typename));
- parseerror(parser, "type not supported as part of a parameter list: %s", typename);
+ char tname[1024]; /* typename is reserved in C++ */
+ ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
+ parseerror(parser, "type not supported as part of a parameter list: %s", tname);
goto on_error;
}
}
}
else if (parser->tok == '{' || parser->tok == '[')
{
- size_t i;
if (localblock) {
parseerror(parser, "cannot declare functions within functions");
break;
size_t i;
ast_value *value;
- crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
- crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
- /*
- progdefs_crc_file("\tint\tpad;\n");
- progdefs_crc_file("\tint\tofs_return[3];\n");
- progdefs_crc_file("\tint\tofs_parm0[3];\n");
- progdefs_crc_file("\tint\tofs_parm1[3];\n");
- progdefs_crc_file("\tint\tofs_parm2[3];\n");
- progdefs_crc_file("\tint\tofs_parm3[3];\n");
- progdefs_crc_file("\tint\tofs_parm4[3];\n");
- progdefs_crc_file("\tint\tofs_parm5[3];\n");
- progdefs_crc_file("\tint\tofs_parm6[3];\n");
- progdefs_crc_file("\tint\tofs_parm7[3];\n");
- */
- for (i = 0; i < parser->crc_globals; ++i) {
- if (!ast_istype(parser->globals[i], ast_value))
- continue;
- value = (ast_value*)(parser->globals[i]);
- switch (value->expression.vtype) {
- case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
- case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
- case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
- case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
- default:
- crc = progdefs_crc_both(crc, "\tint\t");
- break;
- }
- crc = progdefs_crc_both(crc, value->name);
- crc = progdefs_crc_both(crc, ";\n");
- }
- crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
- for (i = 0; i < parser->crc_fields; ++i) {
- if (!ast_istype(parser->fields[i], ast_value))
- continue;
- value = (ast_value*)(parser->fields[i]);
- switch (value->expression.next->expression.vtype) {
- case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
- case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
- case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
- case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
- default:
- crc = progdefs_crc_both(crc, "\tint\t");
- break;
- }
- crc = progdefs_crc_both(crc, value->name);
- crc = progdefs_crc_both(crc, ";\n");
- }
- crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
-
- code_crc = crc;
+ crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
+ crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
+ /*
+ progdefs_crc_file("\tint\tpad;\n");
+ progdefs_crc_file("\tint\tofs_return[3];\n");
+ progdefs_crc_file("\tint\tofs_parm0[3];\n");
+ progdefs_crc_file("\tint\tofs_parm1[3];\n");
+ progdefs_crc_file("\tint\tofs_parm2[3];\n");
+ progdefs_crc_file("\tint\tofs_parm3[3];\n");
+ progdefs_crc_file("\tint\tofs_parm4[3];\n");
+ progdefs_crc_file("\tint\tofs_parm5[3];\n");
+ progdefs_crc_file("\tint\tofs_parm6[3];\n");
+ progdefs_crc_file("\tint\tofs_parm7[3];\n");
+ */
+ for (i = 0; i < parser->crc_globals; ++i) {
+ if (!ast_istype(parser->globals[i], ast_value))
+ continue;
+ value = (ast_value*)(parser->globals[i]);
+ switch (value->expression.vtype) {
+ case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
+ case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
+ case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
+ case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
+ default:
+ crc = progdefs_crc_both(crc, "\tint\t");
+ break;
+ }
+ crc = progdefs_crc_both(crc, value->name);
+ crc = progdefs_crc_both(crc, ";\n");
+ }
+ crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
+ for (i = 0; i < parser->crc_fields; ++i) {
+ if (!ast_istype(parser->fields[i], ast_value))
+ continue;
+ value = (ast_value*)(parser->fields[i]);
+ switch (value->expression.next->expression.vtype) {
+ case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
+ case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
+ case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
+ case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
+ default:
+ crc = progdefs_crc_both(crc, "\tint\t");
+ break;
+ }
+ crc = progdefs_crc_both(crc, value->name);
+ crc = progdefs_crc_both(crc, ";\n");
+ }
+ crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
+
+ code_crc = crc;
}
static parser_t *parser;
return parser_compile();
}
-bool parser_compile_string_len(const char *name, const char *str, size_t len)
+bool parser_compile_string(const char *name, const char *str, size_t len)
{
parser->lex = lex_open_string(str, len, name);
if (!parser->lex) {
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) {
- con_err("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