+/*
+ * Copyright (C) 2012, 2013
+ * Wolfgang Bumiller
+ * Dale Weiler
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
#include <stdio.h>
#include <stdarg.h>
#include "gmqcc.h"
#include "lexer.h"
+#include "ast.h"
-typedef struct {
- char *name;
- ast_expression *var;
-} varentry_t;
+/* 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;
- varentry_t *globals;
- varentry_t *fields;
+ ast_expression **globals;
+ ast_expression **fields;
ast_function **functions;
ast_value **imm_float;
ast_value **imm_string;
ast_value **imm_vector;
+ size_t translated;
/* must be deleted first, they reference immediates and values */
ast_value **accessors;
ast_value *imm_float_zero;
+ ast_value *imm_float_one;
ast_value *imm_vector_zero;
+ ast_value *nil;
size_t crc_globals;
size_t crc_fields;
ast_function *function;
- varentry_t *locals;
- size_t blocklocal;
- size_t errors;
+ /* All the labels the function defined...
+ * Should they be in ast_function instead?
+ */
+ ast_label **labels;
+ ast_goto **gotos;
+ const char **breaks;
+ const char **continues;
+
+ /* A list of hashtables for each scope */
+ ht *variables;
+ ht htfields;
+ ht htglobals;
+ ht *typedefs;
+
+ /* same as above but for the spelling corrector */
+ ht *correct_variables;
+ size_t ***correct_variables_score; /* vector of vector of size_t* */
+
+ /* not to be used directly, we use the hash table */
+ ast_expression **_locals;
+ size_t *_blocklocals;
+ ast_value **_typedefs;
+ size_t *_blocktypedefs;
+ lex_ctx *_block_ctx;
/* we store the '=' operator info */
const oper_info *assign_op;
* anything else: type error
*/
qcint memberof;
+
+ /* Keep track of our ternary vs parenthesis nesting state.
+ * If we reach a 'comma' operator in a ternary without a paren,
+ * we shall trigger -Wternary-precedence.
+ */
+ enum parser_pot *pot;
+
+ /* pragma flags */
+ bool noref;
} parser_t;
+static const ast_expression *intrinsic_debug_typestring = (ast_expression*)0x10;
-static bool GMQCC_WARN parser_pop_local(parser_t *parser);
-static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields);
-static ast_block* parse_block(parser_t *parser, bool warnreturn);
-static bool parse_block_into(parser_t *parser, ast_block *block, bool warnreturn);
-static ast_expression* parse_statement_or_block(parser_t *parser);
+static void parser_enterblock(parser_t *parser);
+static bool parser_leaveblock(parser_t *parser);
+static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
+static bool parse_typedef(parser_t *parser);
+static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref, bool is_static, uint32_t qflags, char *vstring);
+static ast_block* parse_block(parser_t *parser);
+static bool parse_block_into(parser_t *parser, ast_block *block);
+static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
-static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma);
-static ast_expression* parse_expression(parser_t *parser, bool stopatcomma);
+static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
+static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
static void parseerror(parser_t *parser, const char *fmt, ...)
{
- va_list ap;
-
- parser->errors++;
-
- 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_list ap;
+ va_start(ap, fmt);
+ vcompile_error(parser->lex->tok.ctx, fmt, 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, ...)
{
- va_list ap;
- int lvl = LVL_WARNING;
-
- if (!OPTS_WARN(warntype))
- return false;
-
- if (opts_werror) {
- parser->errors++;
- lvl = LVL_ERROR;
- }
-
- va_start(ap, fmt);
- con_vprintmsg(lvl, parser->lex->tok.ctx.file, parser->lex->tok.ctx.line, "warning", fmt, ap);
- va_end(ap);
-
- return opts_werror;
+ bool 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, ...)
{
- va_list ap;
- int lvl = LVL_WARNING;
-
- if (!OPTS_WARN(warntype))
- return false;
-
- if (opts_werror)
- lvl = LVL_ERROR;
-
- va_start(ap, fmt);
- con_vprintmsg(lvl, ctx.file, ctx.line, "warning", fmt, ap);
- va_end(ap);
-
- return opts_werror;
+ bool r;
+ va_list ap;
+ va_start(ap, fmt);
+ r = vcompile_warning(ctx, warntype, fmt, ap);
+ va_end(ap);
+ return r;
}
/**********************************************************************
size_t i;
ast_value *out;
for (i = 0; i < vec_size(parser->imm_float); ++i) {
- if (parser->imm_float[i]->constval.vfloat == d)
+ const double compare = parser->imm_float[i]->constval.vfloat;
+ if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0)
return parser->imm_float[i];
}
out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_FLOAT);
- out->isconst = true;
+ out->cvq = CV_CONST;
+ out->hasvalue = true;
out->constval.vfloat = d;
vec_push(parser->imm_float, out);
return out;
return parser->imm_float_zero;
}
+static ast_value* parser_const_float_1(parser_t *parser)
+{
+ if (!parser->imm_float_one)
+ parser->imm_float_one = parser_const_float(parser, 1);
+ return parser->imm_float_one;
+}
+
static char *parser_strdup(const char *str)
{
if (str && !*str) {
/* actually dup empty strings */
- char *out = mem_a(1);
+ char *out = (char*)mem_a(1);
*out = 0;
return out;
}
return util_strdup(str);
}
-static ast_value* parser_const_string(parser_t *parser, const char *str)
+static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate)
{
size_t i;
ast_value *out;
if (!strcmp(parser->imm_string[i]->constval.vstring, str))
return parser->imm_string[i];
}
- out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
- out->isconst = true;
+ if (dotranslate) {
+ char name[32];
+ snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++));
+ out = ast_value_new(parser_ctx(parser), name, TYPE_STRING);
+ } else
+ out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
+ out->cvq = CV_CONST;
+ out->hasvalue = true;
out->constval.vstring = parser_strdup(str);
vec_push(parser->imm_string, out);
return out;
return parser->imm_vector[i];
}
out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
- out->isconst = true;
+ out->cvq = CV_CONST;
+ out->hasvalue = true;
out->constval.vvec = v;
vec_push(parser->imm_vector, out);
return out;
}
static ast_expression* parser_find_field(parser_t *parser, const char *name)
+{
+ return ( ast_expression*)util_htget(parser->htfields, name);
+}
+
+static ast_expression* parser_find_label(parser_t *parser, const char *name)
{
size_t i;
- for (i = 0; i < vec_size(parser->fields); ++i) {
- if (!strcmp(parser->fields[i].name, name))
- return parser->fields[i].var;
- }
+ for(i = 0; i < vec_size(parser->labels); i++)
+ if (!strcmp(parser->labels[i]->name, name))
+ return (ast_expression*)parser->labels[i];
return NULL;
}
static ast_expression* parser_find_global(parser_t *parser, const char *name)
{
- size_t i;
- for (i = 0; i < vec_size(parser->globals); ++i) {
- if (!strcmp(parser->globals[i].name, name))
- return parser->globals[i].var;
- }
- return NULL;
+ return (ast_expression*)util_htget(parser->htglobals, name);
}
static ast_expression* parser_find_param(parser_t *parser, const char *name)
static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
{
- size_t i;
+ size_t i, hash;
+ ast_expression *e;
+
+ hash = util_hthash(parser->htglobals, name);
+
*isparam = false;
- for (i = vec_size(parser->locals); i > upto;) {
+ for (i = vec_size(parser->variables); i > upto;) {
--i;
- if (!strcmp(parser->locals[i].name, name))
- return parser->locals[i].var;
+ if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
+ return e;
}
*isparam = true;
return parser_find_param(parser, name);
return v;
}
+static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
+{
+ size_t i, hash;
+ ast_value *e;
+ hash = util_hthash(parser->typedefs[0], name);
+
+ for (i = vec_size(parser->typedefs); i > upto;) {
+ --i;
+ if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
+ return e;
+ }
+ return NULL;
+}
+
typedef struct
{
size_t etype; /* 0 = expression, others are operators */
#define SY_PAREN_EXPR '('
#define SY_PAREN_FUNC 'f'
#define SY_PAREN_INDEX '['
+#define SY_PAREN_TERNARY '?'
static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
sy_elem e;
return true;
}
-static bool parser_sy_pop(parser_t *parser, shunt *sy)
+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;
lex_ctx ctx;
ast_expression *exprs[3];
ast_block *blocks[3];
ast_value *asvalue[3];
- size_t i, assignop;
+ ast_binstore *asbinstore;
+ size_t i, assignop, addop, subop;
qcint generated_op = 0;
char ty1[1024];
vec_shrinkby(sy->ops, 1);
+ /* op(:?) has no input and no output */
+ if (!op->operands)
+ return true;
+
vec_shrinkby(sy->out, op->operands);
for (i = 0; i < op->operands; ++i) {
exprs[i] = sy->out[vec_size(sy->out)+i].out;
blocks[i] = sy->out[vec_size(sy->out)+i].block;
asvalue[i] = (ast_value*)exprs[i];
+
+ if (exprs[i]->expression.vtype == TYPE_NOEXPR &&
+ !(i != 0 && op->id == opid2('?',':')))
+ {
+ if (ast_istype(exprs[i], ast_label))
+ compile_error(ast_ctx(exprs[i]), "expected expression, got an unknown identifier");
+ else
+ compile_error(ast_ctx(exprs[i]), "not an expression");
+ (void)!compile_warning(ast_ctx(exprs[i]), WARN_DEBUG, "expression %u\n", (unsigned int)i);
+ }
}
if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
(exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
exprs[0]->expression.vtype != T)
#define CanConstFold1(A) \
- (ast_istype((A), ast_value) && ((ast_value*)(A))->isconst)
+ (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 CanConstFold3(A, B, C) \
- (CanConstFold1(A) && CanConstFold1(B) && CanConstFold1(C))
#define ConstV(i) (asvalue[(i)]->constval.vvec)
#define ConstF(i) (asvalue[(i)]->constval.vfloat)
#define ConstS(i) (asvalue[(i)]->constval.vstring)
out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
if (rotate_entfield_array_index_nodes(&out))
{
- if (opts_standard != COMPILER_GMQCC) {
+#if 0
+ /* This is not broken in fteqcc anymore */
+ if (opts.standard != COMPILER_GMQCC) {
/* this error doesn't need to make us bail out */
(void)!parsewarning(parser, WARN_EXTENSIONS,
"accessing array-field members of an entity without parenthesis\n"
" -> this is an extension from -std=gmqcc");
}
+#endif
}
break;
case opid1(','):
if (blocks[0]) {
- vec_push(blocks[0]->exprs, exprs[1]);
+ if (!ast_block_add_expr(blocks[0], exprs[1]))
+ return false;
} else {
blocks[0] = ast_block_new(ctx);
- vec_push(blocks[0]->exprs, exprs[0]);
- vec_push(blocks[0]->exprs, exprs[1]);
+ if (!ast_block_add_expr(blocks[0], exprs[0]) ||
+ !ast_block_add_expr(blocks[0], exprs[1]))
+ {
+ return false;
+ }
}
if (!ast_block_set_type(blocks[0], exprs[1]))
return false;
vec_push(sy->out, syblock(ctx, blocks[0]));
return true;
+ case opid2('+','P'):
+ out = exprs[0];
+ break;
case opid2('-','P'):
switch (exprs[0]->expression.vtype) {
case TYPE_FLOAT:
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
break;
case TYPE_STRING:
- if (CanConstFold1(exprs[0]))
- out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
- else
- out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
+ if (CanConstFold1(exprs[0])) {
+ if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
+ out = (ast_expression*)parser_const_float(parser, !ConstS(0));
+ else
+ out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
+ } else {
+ if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
+ out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
+ else
+ out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
+ }
break;
/* we don't constant-fold NOT for these types */
case TYPE_ENTITY:
break;
case opid1('*'):
if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
- exprs[0]->expression.vtype != TYPE_VECTOR &&
- exprs[0]->expression.vtype != TYPE_FLOAT &&
- exprs[1]->expression.vtype != TYPE_VECTOR &&
- exprs[1]->expression.vtype != TYPE_FLOAT)
+ !(exprs[0]->expression.vtype == TYPE_VECTOR &&
+ exprs[1]->expression.vtype == TYPE_FLOAT) &&
+ !(exprs[1]->expression.vtype == TYPE_VECTOR &&
+ exprs[0]->expression.vtype == TYPE_FLOAT)
+ )
{
parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
type_name[exprs[1]->expression.vtype],
{
if (CanConstFold(exprs[0], exprs[1]))
out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
+ else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[0])) {
+ vector vec = ConstV(0);
+ if (!vec.y && !vec.z) { /* 'n 0 0' * v */
+ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
+ out = (ast_expression*)ast_member_new(ctx, exprs[1], 0, NULL);
+ out->expression.node.keep = false;
+ ((ast_member*)out)->rvalue = true;
+ if (vec.x != 1)
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.x), out);
+ }
+ else if (!vec.x && !vec.z) { /* '0 n 0' * v */
+ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
+ out = (ast_expression*)ast_member_new(ctx, exprs[1], 1, NULL);
+ out->expression.node.keep = false;
+ ((ast_member*)out)->rvalue = true;
+ if (vec.y != 1)
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.y), out);
+ }
+ else if (!vec.x && !vec.y) { /* '0 n 0' * v */
+ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
+ out = (ast_expression*)ast_member_new(ctx, exprs[1], 2, NULL);
+ out->expression.node.keep = false;
+ ((ast_member*)out)->rvalue = true;
+ if (vec.z != 1)
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.z), out);
+ }
+ else
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
+ }
+ else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[1])) {
+ vector vec = ConstV(1);
+ if (!vec.y && !vec.z) { /* v * 'n 0 0' */
+ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
+ out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
+ out->expression.node.keep = false;
+ ((ast_member*)out)->rvalue = true;
+ if (vec.x != 1)
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.x));
+ }
+ else if (!vec.x && !vec.z) { /* v * '0 n 0' */
+ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
+ out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
+ out->expression.node.keep = false;
+ ((ast_member*)out)->rvalue = true;
+ if (vec.y != 1)
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.y));
+ }
+ else if (!vec.x && !vec.y) { /* v * '0 n 0' */
+ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
+ out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
+ out->expression.node.keep = false;
+ ((ast_member*)out)->rvalue = true;
+ if (vec.z != 1)
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.z));
+ }
+ else
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
+ }
else
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
}
generated_op += 1; /* INSTR_OR */
case opid2('&','&'):
generated_op += INSTR_AND;
+#if 0
if (NotSameType(TYPE_FLOAT)) {
parseerror(parser, "invalid types used in expression: cannot perform logical operations between types %s and %s",
type_name[exprs[0]->expression.vtype],
parseerror(parser, "TODO: optional early out");
return false;
}
- if (opts_standard == COMPILER_GMQCC)
- con_out("TODO: early out logic\n");
+#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])) )
+ ? 1 : 0);
+ }
else
+ {
+ if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
+ 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 -fperl-logic: %s and %s", ty1, ty2);
+ return false;
+ }
+ 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;
+ }
+ }
+ 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]);
+ }
break;
case opid2('?',':'):
- if (exprs[1]->expression.vtype != exprs[2]->expression.vtype) {
+ if (vec_last(parser->pot) != POT_TERNARY2) {
+ parseerror(parser, "mismatched parenthesis/ternary");
+ return false;
+ }
+ vec_pop(parser->pot);
+ if (!ast_compare_type(exprs[1], exprs[2])) {
ast_type_to_string(exprs[1], ty1, sizeof(ty1));
ast_type_to_string(exprs[2], ty2, sizeof(ty2));
- parseerror(parser, "iperands of ternary expression must have the same type, got %s and %s", ty1, ty2);
+ parseerror(parser, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
return false;
}
if (CanConstFold1(exprs[0]))
- out = (ConstF(0) ? exprs[1] : exprs[2]);
+ out = (immediate_is_true(ctx, asvalue[0]) ? exprs[1] : exprs[2]);
else
out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
break;
}
else
assignop = type_storep_instr[exprs[0]->expression.vtype];
- if (!ast_compare_type(field->expression.next, exprs[1])) {
+ if (assignop == AINSTR_END || !ast_compare_type(field->expression.next, exprs[1]))
+ {
ast_type_to_string(field->expression.next, ty1, sizeof(ty1));
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
- if (opts_standard == COMPILER_QCC &&
+ if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
field->expression.next->expression.vtype == TYPE_FUNCTION &&
exprs[1]->expression.vtype == TYPE_FUNCTION)
{
- if (parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
- "invalid types in assignment: cannot assign %s to %s", ty2, ty1))
- {
- parser->errors++;
- }
+ (void)!parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
+ "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
}
else
parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
}
- else if (!ast_compare_type(exprs[0], exprs[1])) {
+ else if (!ast_compare_type(exprs[0], exprs[1]))
+ {
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
- if (opts_standard == COMPILER_QCC &&
+ if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
exprs[0]->expression.vtype == TYPE_FUNCTION &&
exprs[1]->expression.vtype == TYPE_FUNCTION)
{
- if (parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
- "invalid types in assignment: cannot assign %s to %s", ty2, ty1))
- {
- parser->errors++;
- }
+ (void)!parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
+ "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
}
else
parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
}
}
+ if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
+ parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
+ }
out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
break;
+ case opid3('+','+','P'):
+ case opid3('-','-','P'):
+ /* prefix ++ */
+ if (exprs[0]->expression.vtype != TYPE_FLOAT) {
+ ast_type_to_string(exprs[0], ty1, sizeof(ty1));
+ parseerror(parser, "invalid type for prefix increment: %s", ty1);
+ return false;
+ }
+ if (op->id == opid3('+','+','P'))
+ addop = INSTR_ADD_F;
+ else
+ addop = INSTR_SUB_F;
+ if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
+ parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
+ }
+ if (ast_istype(exprs[0], ast_entfield)) {
+ out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
+ exprs[0],
+ (ast_expression*)parser_const_float_1(parser));
+ } else {
+ out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
+ exprs[0],
+ (ast_expression*)parser_const_float_1(parser));
+ }
+ break;
+ case opid3('S','+','+'):
+ case opid3('S','-','-'):
+ /* prefix ++ */
+ if (exprs[0]->expression.vtype != TYPE_FLOAT) {
+ ast_type_to_string(exprs[0], ty1, sizeof(ty1));
+ parseerror(parser, "invalid type for suffix increment: %s", ty1);
+ return false;
+ }
+ if (op->id == opid3('S','+','+')) {
+ addop = INSTR_ADD_F;
+ subop = INSTR_SUB_F;
+ } else {
+ addop = INSTR_SUB_F;
+ subop = INSTR_ADD_F;
+ }
+ if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
+ parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
+ }
+ if (ast_istype(exprs[0], ast_entfield)) {
+ out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
+ exprs[0],
+ (ast_expression*)parser_const_float_1(parser));
+ } else {
+ out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
+ exprs[0],
+ (ast_expression*)parser_const_float_1(parser));
+ }
+ if (!out)
+ return false;
+ out = (ast_expression*)ast_binary_new(ctx, subop,
+ out,
+ (ast_expression*)parser_const_float_1(parser));
+ break;
case opid2('+','='):
case opid2('-','='):
if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
(exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
{
+ ast_type_to_string(exprs[0], ty1, sizeof(ty1));
+ ast_type_to_string(exprs[1], ty2, sizeof(ty2));
parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
- type_name[exprs[0]->expression.vtype],
- type_name[exprs[1]->expression.vtype]);
+ ty1, ty2);
return false;
}
+ if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
+ parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
+ }
if (ast_istype(exprs[0], ast_entfield))
assignop = type_storep_instr[exprs[0]->expression.vtype];
else
return false;
};
break;
+ case opid2('*','='):
+ case opid2('/','='):
+ if (exprs[1]->expression.vtype != TYPE_FLOAT ||
+ !(exprs[0]->expression.vtype == TYPE_FLOAT ||
+ exprs[0]->expression.vtype == TYPE_VECTOR))
+ {
+ ast_type_to_string(exprs[0], ty1, sizeof(ty1));
+ ast_type_to_string(exprs[1], ty2, sizeof(ty2));
+ parseerror(parser, "invalid types used in expression: %s and %s",
+ ty1, ty2);
+ return false;
+ }
+ if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
+ parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
+ }
+ if (ast_istype(exprs[0], ast_entfield))
+ assignop = type_storep_instr[exprs[0]->expression.vtype];
+ else
+ assignop = type_store_instr[exprs[0]->expression.vtype];
+ switch (exprs[0]->expression.vtype) {
+ case TYPE_FLOAT:
+ out = (ast_expression*)ast_binstore_new(ctx, assignop,
+ (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
+ exprs[0], exprs[1]);
+ break;
+ case TYPE_VECTOR:
+ if (op->id == opid2('*','=')) {
+ out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
+ exprs[0], exprs[1]);
+ } else {
+ /* there's no DIV_VF */
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
+ (ast_expression*)parser_const_float_1(parser),
+ exprs[1]);
+ if (!out)
+ return false;
+ out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
+ exprs[0], out);
+ }
+ break;
+ default:
+ parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
+ type_name[exprs[0]->expression.vtype],
+ type_name[exprs[1]->expression.vtype]);
+ return false;
+ };
+ break;
+ case opid2('&','='):
+ case opid2('|','='):
+ if (NotSameType(TYPE_FLOAT)) {
+ ast_type_to_string(exprs[0], ty1, sizeof(ty1));
+ ast_type_to_string(exprs[1], ty2, sizeof(ty2));
+ parseerror(parser, "invalid types used in expression: %s and %s",
+ ty1, ty2);
+ return false;
+ }
+ if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
+ parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
+ }
+ if (ast_istype(exprs[0], ast_entfield))
+ assignop = type_storep_instr[exprs[0]->expression.vtype];
+ else
+ assignop = type_store_instr[exprs[0]->expression.vtype];
+ out = (ast_expression*)ast_binstore_new(ctx, assignop,
+ (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
+ exprs[0], exprs[1]);
+ break;
+ case opid3('&','~','='):
+ /* This is like: a &= ~(b);
+ * But QC has no bitwise-not, so we implement it as
+ * a -= a & (b);
+ */
+ if (NotSameType(TYPE_FLOAT)) {
+ ast_type_to_string(exprs[0], ty1, sizeof(ty1));
+ ast_type_to_string(exprs[1], ty2, sizeof(ty2));
+ parseerror(parser, "invalid types used in expression: %s and %s",
+ ty1, ty2);
+ return false;
+ }
+ if (ast_istype(exprs[0], ast_entfield))
+ assignop = type_storep_instr[exprs[0]->expression.vtype];
+ else
+ assignop = type_store_instr[exprs[0]->expression.vtype];
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
+ if (!out)
+ return false;
+ if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
+ parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
+ }
+ asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
+ asbinstore->keep_dest = true;
+ out = (ast_expression*)asbinstore;
+ break;
}
#undef NotSameType
fun = sy->out[fid].out;
+ if (fun == intrinsic_debug_typestring) {
+ char ty[1024];
+ if (fid+2 != vec_size(sy->out) ||
+ vec_last(sy->out).block)
+ {
+ parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
+ return false;
+ }
+ ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
+ ast_unref(vec_last(sy->out).out);
+ sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
+ (ast_expression*)parser_const_string(parser, ty, false));
+ vec_shrinkby(sy->out, 1);
+ return true;
+ }
+
call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
if (!call) {
- parseerror(parser, "out of memory");
+ parseerror(parser, "internal error: failed to create ast_call node");
return false;
}
params->exprs = NULL;
ast_delete(params);
}
- if (!ast_call_check_types(call))
- parser->errors++;
+ (void)!ast_call_check_types(call);
} else {
parseerror(parser, "invalid function call");
return false;
parseerror(parser, "could not determine function return type");
return false;
} else {
+ ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
+
+ if (fun->expression.flags & AST_FLAG_DEPRECATED) {
+ if (!fval) {
+ return !parsewarning(parser, WARN_DEPRECATED,
+ "call to function (which is marked deprecated)\n",
+ "-> it has been declared here: %s:%i",
+ ast_ctx(fun).file, ast_ctx(fun).line);
+ }
+ if (!fval->desc) {
+ return !parsewarning(parser, WARN_DEPRECATED,
+ "call to `%s` (which is marked deprecated)\n"
+ "-> `%s` declared here: %s:%i",
+ fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
+ }
+ return !parsewarning(parser, WARN_DEPRECATED,
+ "call to `%s` (deprecated: %s)\n"
+ "-> `%s` declared here: %s:%i",
+ fval->name, fval->desc, fval->name, ast_ctx(fun).file,
+ ast_ctx(fun).line);
+ }
+
if (vec_size(fun->expression.params) != paramcount &&
- !(fun->expression.variadic &&
+ !((fun->expression.flags & AST_FLAG_VARIADIC) &&
vec_size(fun->expression.params) < paramcount))
{
- ast_value *fval;
const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
-
- fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
- if (opts_standard == COMPILER_GMQCC)
- {
- if (fval)
- parseerror(parser, "too %s parameters for call to %s: expected %i, got %i\n"
- " -> `%s` has been declared here: %s:%i",
- fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
- fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
- else
- parseerror(parser, "too %s parameters for function call: expected %i, got %i\n"
- " -> `%s` has been declared here: %s:%i",
- fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
- fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
- return false;
- }
+ if (fval)
+ return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
+ "too %s parameters for call to %s: expected %i, got %i\n"
+ " -> `%s` has been declared here: %s:%i",
+ fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
+ fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
else
- {
- if (fval)
- return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
- "too %s parameters for call to %s: expected %i, got %i\n"
- " -> `%s` has been declared here: %s:%i",
- fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
- fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
- else
- return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
- "too %s parameters for function call: expected %i, got %i\n"
- " -> `%s` has been declared here: %s:%i",
- fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
- fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
- }
+ return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
+ "too %s parameters for function call: expected %i, got %i\n"
+ " -> it has been declared here: %s:%i",
+ fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
+ ast_ctx(fun).file, (int)ast_ctx(fun).line);
}
}
/* pop off the parenthesis */
vec_shrinkby(sy->ops, 1);
/* then apply the index operator */
- if (!parser_sy_pop(parser, sy))
+ if (!parser_sy_apply_operator(parser, sy))
return false;
return true;
}
- if (!parser_sy_pop(parser, sy))
+ if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_TERNARY) {
+ if (functions_only)
+ return false;
+ if (vec_last(parser->pot) != POT_TERNARY1) {
+ parseerror(parser, "mismatched colon in ternary expression (missing closing paren?)");
+ return false;
+ }
+ vec_last(parser->pot) = POT_TERNARY2;
+ /* pop off the parenthesis */
+ vec_shrinkby(sy->ops, 1);
+ return true;
+ }
+ if (!parser_sy_apply_operator(parser, sy))
return false;
}
return true;
}
}
-static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma)
+static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
{
ast_expression *expr = NULL;
shunt sy;
bool wantop = false;
bool gotmemberof = false;
+ /* only warn once about an assignment in a truth value because the current code
+ * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
+ */
+ bool warn_truthvalue = true;
/* count the parens because an if starts with one, so the
* end of a condition is an unmatched closing paren
else
parser->memberof = 0;
- if (parser->tok == TOKEN_IDENT)
+ if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
+ parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_"))
+ {
+ /* a translatable string */
+ ast_value *val;
+
+ if (wantop) {
+ parseerror(parser, "expected operator or end of statement, got constant");
+ goto onerr;
+ }
+
+ parser->lex->flags.noops = true;
+ if (!parser_next(parser) || parser->tok != '(') {
+ parseerror(parser, "use _(\"string\") to create a translatable string constant");
+ goto onerr;
+ }
+ parser->lex->flags.noops = false;
+ if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
+ parseerror(parser, "expected a constant string in translatable-string extension");
+ goto onerr;
+ }
+ val = parser_const_string(parser, parser_tokval(parser), true);
+ wantop = true;
+ if (!val)
+ return NULL;
+ vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
+ DEBUGSHUNTDO(con_out("push string\n"));
+
+ if (!parser_next(parser) || parser->tok != ')') {
+ parseerror(parser, "expected closing paren after translatable string");
+ goto onerr;
+ }
+ }
+ else if (parser->tok == TOKEN_IDENT)
{
ast_expression *var;
if (wantop) {
}
wantop = true;
/* variable */
- if (opts_standard == COMPILER_GMQCC)
+ if (opts.standard == COMPILER_GMQCC)
{
if (parser->memberof == TYPE_ENTITY) {
/* still get vars first since there could be a fieldpointer */
if (!var)
var = parser_find_field(parser, parser_tokval(parser));
}
+ if (!var && with_labels) {
+ var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
+ if (!with_labels) {
+ ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
+ var = (ast_expression*)lbl;
+ vec_push(parser->labels, lbl);
+ }
+ }
if (!var) {
- parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
- goto onerr;
+ /* intrinsics */
+ if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
+ var = (ast_expression*)intrinsic_debug_typestring;
+ }
+ else
+ {
+ size_t i;
+ char *correct = NULL;
+
+ /*
+ * sometimes people use preprocessing predefs without enabling them
+ * i've done this thousands of times already myself. Lets check for
+ * it in the predef table. And diagnose it better :)
+ */
+ if (!OPTS_FLAG(FTEPP_PREDEFS)) {
+ for (i = 0; i < sizeof(ftepp_predefs)/sizeof(*ftepp_predefs); i++) {
+ if (!strcmp(ftepp_predefs[i].name, parser_tokval(parser))) {
+ parseerror(parser, "unexpected ident: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
+ goto onerr;
+ }
+ }
+ }
+
+ /*
+ * TODO: determine the best score for the identifier: be it
+ * a variable, a field.
+ *
+ * We should also consider adding correction tables for
+ * other things as well.
+ */
+ for (i = 0; i < vec_size(parser->correct_variables); i++) {
+ correct = correct_str(parser->correct_variables[i], "ello");
+ if (strcmp(correct, parser_tokval(parser))) {
+ break;
+ } else if (correct) {
+ mem_d(correct);
+ }
+ }
+
+ if (correct) {
+ parseerror(parser, "unexpected ident: %s (did you mean %s?)", parser_tokval(parser), correct);
+ mem_d(correct);
+ } else {
+ parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
+ }
+
+ goto onerr;
+ }
+ }
+ else
+ {
+ if (ast_istype(var, ast_value)) {
+ ((ast_value*)var)->uses++;
+ }
+ else if (ast_istype(var, ast_member)) {
+ ast_member *mem = (ast_member*)var;
+ if (ast_istype(mem->owner, ast_value))
+ ((ast_value*)(mem->owner))->uses++;
+ }
}
- if (ast_istype(var, ast_value))
- ((ast_value*)var)->uses++;
vec_push(sy.out, syexp(parser_ctx(parser), var));
DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser)));
}
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));
}
- else if (parser->tok == TOKEN_INTCONST) {
+ else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
ast_value *val;
if (wantop) {
parseerror(parser, "expected operator or end of statement, got constant");
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));
}
goto onerr;
}
wantop = true;
- val = parser_const_string(parser, parser_tokval(parser));
+ 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,
/* closing an opening paren */
if (!parser_close_paren(parser, &sy, false))
goto onerr;
+ if (vec_last(parser->pot) != POT_PAREN) {
+ parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
+ goto onerr;
+ }
+ vec_pop(parser->pot);
} else {
DEBUGSHUNTDO(con_out("do[nop] )\n"));
--parens;
/* allowed for function calls */
if (!parser_close_paren(parser, &sy, true))
goto onerr;
+ if (vec_last(parser->pot) != POT_PAREN) {
+ parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
+ goto onerr;
+ }
+ vec_pop(parser->pot);
}
wantop = true;
}
break;
if (!parser_close_paren(parser, &sy, false))
goto onerr;
+ if (vec_last(parser->pot) != POT_PAREN) {
+ parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
+ goto onerr;
+ }
+ vec_pop(parser->pot);
wantop = true;
}
+ else if (parser->tok == TOKEN_TYPENAME) {
+ parseerror(parser, "unexpected typename");
+ goto onerr;
+ }
else if (parser->tok != TOKEN_OPERATOR) {
if (wantop) {
parseerror(parser, "expected operator or end of statement");
else
{
/* classify the operator */
- /* TODO: suffix operators */
const oper_info *op;
const oper_info *olast = NULL;
size_t o;
for (o = 0; o < operator_count; ++o) {
- if ((!(operators[o].flags & OP_PREFIX) == wantop) &&
- !(operators[o].flags & OP_SUFFIX) && /* remove this */
+ if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
+ /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
!strcmp(parser_tokval(parser), operators[o].op))
{
break;
break;
}
- if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
+ if (op->id == opid1(',')) {
+ if (vec_size(parser->pot) && vec_last(parser->pot) == POT_TERNARY2) {
+ (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
+ }
+ }
+
+ if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
olast = &operators[vec_last(sy.ops).etype-1];
+#define IsAssignOp(x) (\
+ (x) == opid1('=') || \
+ (x) == opid2('+','=') || \
+ (x) == opid2('-','=') || \
+ (x) == opid2('*','=') || \
+ (x) == opid2('/','=') || \
+ (x) == opid2('%','=') || \
+ (x) == opid2('&','=') || \
+ (x) == opid2('|','=') || \
+ (x) == opid3('&','~','=') \
+ )
+ if (warn_truthvalue) {
+ if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
+ (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
+ (truthvalue && !vec_size(parser->pot) && IsAssignOp(op->id))
+ )
+ {
+ (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
+ warn_truthvalue = false;
+ }
+ }
+
while (olast && (
(op->prec < olast->prec) ||
(op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
{
- if (!parser_sy_pop(parser, &sy))
+ if (!parser_sy_apply_operator(parser, &sy))
goto onerr;
if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
olast = &operators[vec_last(sy.ops).etype-1];
olast = NULL;
}
- if (op->id == opid1('.') && opts_standard == COMPILER_GMQCC) {
+ if (op->id == opid1('.') && opts.standard == COMPILER_GMQCC) {
/* for gmqcc standard: open up the namespace of the previous type */
ast_expression *prevex = vec_last(sy.out).out;
if (!prevex) {
if (wantop) {
size_t sycount = vec_size(sy.out);
DEBUGSHUNTDO(con_out("push [op] (\n"));
- ++parens;
+ ++parens; vec_push(parser->pot, POT_PAREN);
/* we expected an operator, this is the function-call operator */
vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1));
} else {
- ++parens;
+ ++parens; vec_push(parser->pot, POT_PAREN);
vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0));
DEBUGSHUNTDO(con_out("push [nop] (\n"));
}
parseerror(parser, "unexpected array subscript");
goto onerr;
}
- ++parens;
+ ++parens; vec_push(parser->pot, POT_PAREN);
/* push both the operator and the paren, this makes life easier */
vec_push(sy.ops, syop(parser_ctx(parser), op));
vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0));
wantop = false;
} else if (op->id == opid2('?',':')) {
- wantop = false;
vec_push(sy.ops, syop(parser_ctx(parser), op));
+ vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_TERNARY, 0));
wantop = false;
- --ternaries;
+ ++ternaries;
+ vec_push(parser->pot, POT_TERNARY1);
} else if (op->id == opid2(':','?')) {
- /* we don't push this operator */
+ if (!vec_size(parser->pot)) {
+ parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
+ goto onerr;
+ }
+ if (vec_last(parser->pot) != POT_TERNARY1) {
+ parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
+ goto onerr;
+ }
+ if (!parser_close_paren(parser, &sy, false))
+ goto onerr;
+ vec_push(sy.ops, syop(parser_ctx(parser), op));
wantop = false;
- ++ternaries;
+ --ternaries;
} else {
DEBUGSHUNTDO(con_out("push operator %s\n", op->op));
vec_push(sy.ops, syop(parser_ctx(parser), op));
- wantop = false;
+ wantop = !!(op->flags & OP_SUFFIX);
}
}
if (!parser_next(parser)) {
}
while (vec_size(sy.ops)) {
- if (!parser_sy_pop(parser, &sy))
+ if (!parser_sy_apply_operator(parser, &sy))
goto onerr;
}
vec_free(sy.out);
vec_free(sy.ops);
DEBUGSHUNTDO(con_out("shunt done\n"));
+ if (vec_size(parser->pot)) {
+ parseerror(parser, "internal error: vec_size(parser->pot) = %lu", (unsigned long)vec_size(parser->pot));
+ return NULL;
+ }
+ vec_free(parser->pot);
return expr;
onerr:
return NULL;
}
-static ast_expression* parse_expression(parser_t *parser, bool stopatcomma)
+static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
{
- ast_expression *e = parse_expression_leave(parser, stopatcomma);
+ ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
if (!e)
return NULL;
if (!parser_next(parser)) {
return e;
}
+static void parser_enterblock(parser_t *parser)
+{
+ vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
+ vec_push(parser->_blocklocals, vec_size(parser->_locals));
+ vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
+ vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
+ vec_push(parser->_block_ctx, parser_ctx(parser));
+
+ /* corrector */
+ vec_push(parser->correct_variables, util_htnew(PARSER_HT_SIZE));
+ vec_push(parser->correct_variables_score, NULL);
+}
+
+static bool parser_leaveblock(parser_t *parser)
+{
+ bool rv = true;
+ size_t locals, typedefs;
+
+ if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
+ parseerror(parser, "internal error: parser_leaveblock with no block");
+ return false;
+ }
+
+ util_htdel(vec_last(parser->variables));
+ correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
+
+ vec_pop(parser->variables);
+ vec_pop(parser->correct_variables);
+ vec_pop(parser->correct_variables_score);
+ if (!vec_size(parser->_blocklocals)) {
+ parseerror(parser, "internal error: parser_leaveblock with no block (2)");
+ return false;
+ }
+
+ locals = vec_last(parser->_blocklocals);
+ vec_pop(parser->_blocklocals);
+ while (vec_size(parser->_locals) != locals) {
+ ast_expression *e = vec_last(parser->_locals);
+ ast_value *v = (ast_value*)e;
+ vec_pop(parser->_locals);
+ if (ast_istype(e, ast_value) && !v->uses) {
+ if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
+ rv = false;
+ }
+ }
+
+ typedefs = vec_last(parser->_blocktypedefs);
+ while (vec_size(parser->_typedefs) != typedefs) {
+ ast_delete(vec_last(parser->_typedefs));
+ vec_pop(parser->_typedefs);
+ }
+ util_htdel(vec_last(parser->typedefs));
+ vec_pop(parser->typedefs);
+
+ vec_pop(parser->_block_ctx);
+
+ return rv;
+}
+
+static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
+{
+ vec_push(parser->_locals, e);
+ util_htset(vec_last(parser->variables), name, (void*)e);
+
+ /* corrector */
+ correct_add (
+ vec_last(parser->correct_variables),
+ &vec_last(parser->correct_variables_score),
+ name
+ );
+}
+
+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);
+ (void)block; /* not touching */
+
/* skip the 'if', parse an optional 'not' and check for an opening paren */
if (!parser_next(parser)) {
parseerror(parser, "expected condition or 'not'");
return false;
}
- if (parser->tok == TOKEN_KEYWORD && !strcmp(parser_tokval(parser), "not")) {
+ if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
ifnot = true;
if (!parser_next(parser)) {
parseerror(parser, "expected condition in parenthesis");
return false;
}
/* parse the condition */
- cond = parse_expression_leave(parser, false);
+ cond = parse_expression_leave(parser, false, true, false);
if (!cond)
return false;
/* closing paren */
ast_delete(cond);
return false;
}
- ontrue = parse_statement_or_block(parser);
- if (!ontrue) {
+ if (!parse_statement_or_block(parser, &ontrue)) {
ast_delete(cond);
return false;
}
ast_delete(cond);
return false;
}
- onfalse = parse_statement_or_block(parser);
- if (!onfalse) {
+ if (!parse_statement_or_block(parser, &onfalse)) {
ast_delete(ontrue);
ast_delete(cond);
return false;
}
}
+ 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
return true;
}
+static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
{
- ast_loop *aloop;
- ast_expression *cond, *ontrue;
+ bool rv;
+ char *label = NULL;
- lex_ctx ctx = parser_ctx(parser);
+ /* skip the 'while' and get the body */
+ if (!parser_next(parser)) {
+ if (OPTS_FLAG(LOOP_LABELS))
+ parseerror(parser, "expected loop label or 'while' condition in parenthesis");
+ else
+ parseerror(parser, "expected 'while' condition in parenthesis");
+ return false;
+ }
- /* skip the 'while' and check for opening paren */
- if (!parser_next(parser) || parser->tok != '(') {
+ if (parser->tok == ':') {
+ if (!OPTS_FLAG(LOOP_LABELS))
+ parseerror(parser, "labeled loops not activated, try using -floop-labels");
+ if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
+ parseerror(parser, "expected loop label");
+ return false;
+ }
+ label = util_strdup(parser_tokval(parser));
+ if (!parser_next(parser)) {
+ mem_d(label);
+ parseerror(parser, "expected 'while' condition in parenthesis");
+ return false;
+ }
+ }
+
+ if (parser->tok != '(') {
parseerror(parser, "expected 'while' condition in parenthesis");
return false;
}
+
+ vec_push(parser->breaks, label);
+ vec_push(parser->continues, label);
+
+ rv = parse_while_go(parser, block, out);
+ if (label)
+ mem_d(label);
+ if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
+ parseerror(parser, "internal error: label stack corrupted");
+ rv = false;
+ ast_delete(*out);
+ *out = NULL;
+ }
+ else {
+ vec_pop(parser->breaks);
+ vec_pop(parser->continues);
+ }
+ return rv;
+}
+
+static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
+{
+ ast_loop *aloop;
+ ast_expression *cond, *ontrue;
+
+ bool ifnot = false;
+
+ lex_ctx ctx = parser_ctx(parser);
+
+ (void)block; /* not touching */
+
/* parse into the expression */
if (!parser_next(parser)) {
parseerror(parser, "expected 'while' condition after opening paren");
return false;
}
/* parse the condition */
- cond = parse_expression_leave(parser, false);
+ cond = parse_expression_leave(parser, false, true, false);
if (!cond)
return false;
/* closing paren */
ast_delete(cond);
return false;
}
- ontrue = parse_statement_or_block(parser);
- if (!ontrue) {
+ if (!parse_statement_or_block(parser, &ontrue)) {
ast_delete(cond);
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;
}
+static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
{
- ast_loop *aloop;
- ast_expression *cond, *ontrue;
-
- lex_ctx ctx = parser_ctx(parser);
+ bool rv;
+ char *label = NULL;
/* skip the 'do' and get the body */
if (!parser_next(parser)) {
- parseerror(parser, "expected loop body");
+ if (OPTS_FLAG(LOOP_LABELS))
+ parseerror(parser, "expected loop label or body");
+ else
+ parseerror(parser, "expected loop body");
return false;
}
- ontrue = parse_statement_or_block(parser);
- if (!ontrue)
+
+ if (parser->tok == ':') {
+ if (!OPTS_FLAG(LOOP_LABELS))
+ parseerror(parser, "labeled loops not activated, try using -floop-labels");
+ if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
+ parseerror(parser, "expected loop label");
+ return false;
+ }
+ label = util_strdup(parser_tokval(parser));
+ if (!parser_next(parser)) {
+ mem_d(label);
+ parseerror(parser, "expected loop body");
+ return false;
+ }
+ }
+
+ vec_push(parser->breaks, label);
+ vec_push(parser->continues, label);
+
+ rv = parse_dowhile_go(parser, block, out);
+ if (label)
+ mem_d(label);
+ if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
+ parseerror(parser, "internal error: label stack corrupted");
+ rv = false;
+ ast_delete(*out);
+ *out = NULL;
+ }
+ else {
+ vec_pop(parser->breaks);
+ vec_pop(parser->continues);
+ }
+ return rv;
+}
+
+static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
+{
+ ast_loop *aloop;
+ ast_expression *cond, *ontrue;
+
+ bool ifnot = false;
+
+ lex_ctx ctx = parser_ctx(parser);
+
+ (void)block; /* not touching */
+
+ if (!parse_statement_or_block(parser, &ontrue))
return false;
/* expect the "while" */
return false;
}
/* parse the condition */
- cond = parse_expression_leave(parser, false);
+ cond = parse_expression_leave(parser, false, true, false);
if (!cond)
return false;
/* closing paren */
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;
}
+static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
{
- ast_loop *aloop;
+ bool rv;
+ char *label = NULL;
+
+ /* skip the 'for' and check for opening paren */
+ if (!parser_next(parser)) {
+ if (OPTS_FLAG(LOOP_LABELS))
+ parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
+ else
+ parseerror(parser, "expected 'for' expressions in parenthesis");
+ return false;
+ }
+
+ if (parser->tok == ':') {
+ if (!OPTS_FLAG(LOOP_LABELS))
+ parseerror(parser, "labeled loops not activated, try using -floop-labels");
+ if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
+ parseerror(parser, "expected loop label");
+ return false;
+ }
+ label = util_strdup(parser_tokval(parser));
+ if (!parser_next(parser)) {
+ mem_d(label);
+ parseerror(parser, "expected 'for' expressions in parenthesis");
+ return false;
+ }
+ }
+
+ if (parser->tok != '(') {
+ parseerror(parser, "expected 'for' expressions in parenthesis");
+ return false;
+ }
+
+ vec_push(parser->breaks, label);
+ vec_push(parser->continues, label);
+
+ rv = parse_for_go(parser, block, out);
+ if (label)
+ mem_d(label);
+ if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
+ parseerror(parser, "internal error: label stack corrupted");
+ rv = false;
+ ast_delete(*out);
+ *out = NULL;
+ }
+ else {
+ vec_pop(parser->breaks);
+ vec_pop(parser->continues);
+ }
+ return rv;
+}
+static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
+{
+ ast_loop *aloop;
ast_expression *initexpr, *cond, *increment, *ontrue;
- size_t oldblocklocal;
- bool retval = true;
+ ast_value *typevar;
+
+ bool retval = true;
+ bool ifnot = false;
lex_ctx ctx = parser_ctx(parser);
- oldblocklocal = parser->blocklocal;
- parser->blocklocal = vec_size(parser->locals);
+ parser_enterblock(parser);
initexpr = NULL;
cond = NULL;
increment = NULL;
ontrue = NULL;
- /* skip the 'while' and check for opening paren */
- if (!parser_next(parser) || parser->tok != '(') {
- parseerror(parser, "expected 'for' expressions in parenthesis");
- goto onerr;
- }
/* parse into the expression */
if (!parser_next(parser)) {
parseerror(parser, "expected 'for' initializer after opening paren");
goto onerr;
}
- if (parser->tok == TOKEN_TYPENAME) {
- if (opts_standard != COMPILER_GMQCC) {
+ typevar = NULL;
+ if (parser->tok == TOKEN_IDENT)
+ typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
+
+ if (typevar || parser->tok == TOKEN_TYPENAME) {
+#if 0
+ if (opts.standard != COMPILER_GMQCC) {
if (parsewarning(parser, WARN_EXTENSIONS,
"current standard does not allow variable declarations in for-loop initializers"))
goto onerr;
}
-
- parseerror(parser, "TODO: assignment of new variables to be non-const");
- goto onerr;
- if (!parse_variable(parser, block, true))
+#endif
+ if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
goto onerr;
}
else if (parser->tok != ';')
{
- initexpr = parse_expression_leave(parser, false);
+ initexpr = parse_expression_leave(parser, false, false, false);
if (!initexpr)
goto onerr;
}
/* parse the condition */
if (parser->tok != ';') {
- cond = parse_expression_leave(parser, false);
+ cond = parse_expression_leave(parser, false, true, false);
if (!cond)
goto onerr;
}
/* parse the incrementor */
if (parser->tok != ')') {
- increment = parse_expression_leave(parser, false);
+ increment = parse_expression_leave(parser, false, false, false);
if (!increment)
goto onerr;
- if (!ast_istype(increment, ast_store) &&
- !ast_istype(increment, ast_call) &&
- !ast_istype(increment, ast_binstore))
- {
+ if (!ast_side_effects(increment)) {
if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
goto onerr;
}
parseerror(parser, "expected for-loop body");
goto onerr;
}
- ontrue = parse_statement_or_block(parser);
- if (!ontrue) {
+ 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;
- while (vec_size(parser->locals) > parser->blocklocal)
- retval = retval && parser_pop_local(parser);
- parser->blocklocal = oldblocklocal;
+ if (!parser_leaveblock(parser))
+ retval = false;
return retval;
onerr:
if (initexpr) ast_delete(initexpr);
if (cond) ast_delete(cond);
if (increment) ast_delete(increment);
- while (vec_size(parser->locals) > parser->blocklocal)
- (void)!parser_pop_local(parser);
- parser->blocklocal = oldblocklocal;
+ (void)!parser_leaveblock(parser);
return false;
}
ast_return *ret = NULL;
ast_value *expected = parser->function->vtype;
+ lex_ctx ctx = parser_ctx(parser);
+
+ (void)block; /* not touching */
+
if (!parser_next(parser)) {
parseerror(parser, "expected return expression");
return false;
}
if (parser->tok != ';') {
- exp = parse_expression(parser, false);
+ exp = parse_expression(parser, false, false);
if (!exp)
return false;
- if (exp->expression.vtype != expected->expression.next->expression.vtype) {
+ if (exp->expression.vtype != TYPE_NIL &&
+ exp->expression.vtype != expected->expression.next->expression.vtype)
+ {
parseerror(parser, "return with invalid expression");
}
- ret = ast_return_new(exp->expression.node.context, exp);
+ ret = ast_return_new(ctx, exp);
if (!ret) {
ast_delete(exp);
return false;
if (!parser_next(parser))
parseerror(parser, "parse error");
if (expected->expression.next->expression.vtype != TYPE_VOID) {
- if (opts_standard != COMPILER_GMQCC)
- (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
- else
- parseerror(parser, "return without value");
+ (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
}
- ret = ast_return_new(parser_ctx(parser), NULL);
+ ret = ast_return_new(ctx, NULL);
}
*out = (ast_expression*)ret;
return true;
static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
{
- lex_ctx ctx = parser_ctx(parser);
+ size_t i;
+ unsigned int levels = 0;
+ lex_ctx ctx = parser_ctx(parser);
+ const char **loops = (is_continue ? parser->continues : parser->breaks);
- if (!parser_next(parser) || parser->tok != ';') {
+ (void)block; /* not touching */
+ if (!parser_next(parser)) {
+ parseerror(parser, "expected semicolon or loop label");
+ return false;
+ }
+
+ if (parser->tok == TOKEN_IDENT) {
+ if (!OPTS_FLAG(LOOP_LABELS))
+ parseerror(parser, "labeled loops not activated, try using -floop-labels");
+ i = vec_size(loops);
+ while (i--) {
+ if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
+ break;
+ if (!i) {
+ parseerror(parser, "no such loop to %s: `%s`",
+ (is_continue ? "continue" : "break out of"),
+ parser_tokval(parser));
+ return false;
+ }
+ ++levels;
+ }
+ if (!parser_next(parser)) {
+ parseerror(parser, "expected semicolon");
+ return false;
+ }
+ }
+
+ if (parser->tok != ';') {
parseerror(parser, "expected semicolon");
return false;
}
if (!parser_next(parser))
parseerror(parser, "parse error");
- *out = (ast_expression*)ast_breakcont_new(ctx, is_continue);
+ *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
+ return true;
+}
+
+/* returns true when it was a variable qualifier, false otherwise!
+ * on error, cvq is set to CV_WRONG
+ */
+static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
+{
+ bool had_const = false;
+ bool had_var = false;
+ bool had_noref = false;
+ bool had_attrib = false;
+ bool had_static = false;
+ uint32_t flags = 0;
+
+ *cvq = CV_NONE;
+ for (;;) {
+ 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")) {
+ flags |= AST_FLAG_NORETURN;
+ 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 if (!strcmp(parser_tokval(parser), "inline")) {
+ flags |= AST_FLAG_INLINE;
+ if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
+ parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
+ *cvq = CV_WRONG;
+ return false;
+ }
+ }
+
+
+ else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
+ flags |= AST_FLAG_DEPRECATED;
+ *message = NULL;
+
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error in attribute");
+ goto argerr;
+ }
+
+ if (parser->tok == '(') {
+ if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
+ parseerror(parser, "`deprecated` attribute missing parameter");
+ goto argerr;
+ }
+
+ *message = util_strdup(parser_tokval(parser));
+
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error in attribute");
+ goto argerr;
+ }
+
+ if(parser->tok != ')') {
+ parseerror(parser, "`deprecated` attribute expected `)` after parameter");
+ goto argerr;
+ }
+
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error in attribute");
+ goto argerr;
+ }
+ }
+ /* no message */
+ if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
+ parseerror(parser, "`deprecated` attribute expected `]]`");
+
+ argerr: /* ugly */
+ if (*message) mem_d(*message);
+ *message = NULL;
+ *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), "static"))
+ had_static = true;
+ else if (!strcmp(parser_tokval(parser), "const"))
+ had_const = true;
+ else if (!strcmp(parser_tokval(parser), "var"))
+ had_var = true;
+ else if (with_local && !strcmp(parser_tokval(parser), "local"))
+ had_var = true;
+ else if (!strcmp(parser_tokval(parser), "noref"))
+ had_noref = true;
+ else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
+ return false;
+ }
+ else
+ break;
+ if (!parser_next(parser))
+ goto onerr;
+ }
+ if (had_const)
+ *cvq = CV_CONST;
+ else if (had_var)
+ *cvq = CV_VAR;
+ else
+ *cvq = CV_NONE;
+ *noref = had_noref;
+ *is_static = had_static;
+ *_flags = flags;
+ return true;
+onerr:
+ parseerror(parser, "parse error after variable qualifier");
+ *cvq = CV_WRONG;
return true;
}
+static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
+{
+ bool rv;
+ char *label = NULL;
+
+ /* skip the 'while' and get the body */
+ if (!parser_next(parser)) {
+ if (OPTS_FLAG(LOOP_LABELS))
+ parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
+ else
+ parseerror(parser, "expected 'switch' operand in parenthesis");
+ return false;
+ }
+
+ if (parser->tok == ':') {
+ if (!OPTS_FLAG(LOOP_LABELS))
+ parseerror(parser, "labeled loops not activated, try using -floop-labels");
+ if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
+ parseerror(parser, "expected loop label");
+ return false;
+ }
+ label = util_strdup(parser_tokval(parser));
+ if (!parser_next(parser)) {
+ mem_d(label);
+ parseerror(parser, "expected 'switch' operand in parenthesis");
+ return false;
+ }
+ }
+
+ if (parser->tok != '(') {
+ parseerror(parser, "expected 'switch' operand in parenthesis");
+ return false;
+ }
+
+ vec_push(parser->breaks, label);
+
+ rv = parse_switch_go(parser, block, out);
+ if (label)
+ mem_d(label);
+ if (vec_last(parser->breaks) != label) {
+ parseerror(parser, "internal error: label stack corrupted");
+ rv = false;
+ ast_delete(*out);
+ *out = NULL;
+ }
+ else {
+ vec_pop(parser->breaks);
+ }
+ return rv;
+}
+
+static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
{
ast_expression *operand;
ast_value *opval;
+ ast_value *typevar;
ast_switch *switchnode;
ast_switch_case swcase;
+ int cvq;
+ bool noref, is_static;
+ uint32_t qflags = 0;
+
lex_ctx ctx = parser_ctx(parser);
- /* parse over the opening paren */
- if (!parser_next(parser) || parser->tok != '(') {
- parseerror(parser, "expected switch operand in parenthesis");
- return false;
- }
+ (void)block; /* not touching */
+ (void)opval;
/* parse into the expression */
if (!parser_next(parser)) {
return false;
}
/* parse the operand */
- operand = parse_expression_leave(parser, false);
+ operand = parse_expression_leave(parser, false, false, false);
if (!operand)
return false;
- if (!OPTS_FLAG(RELAXED_SWITCH)) {
- opval = (ast_value*)operand;
- if (!ast_istype(operand, ast_value) || !opval->isconst) {
- parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
- ast_unref(operand);
- return false;
- }
- }
-
switchnode = ast_switch_new(ctx, operand);
/* closing paren */
return false;
}
+ /* new block; allow some variables to be declared here */
+ parser_enterblock(parser);
+ while (true) {
+ typevar = NULL;
+ if (parser->tok == TOKEN_IDENT)
+ typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
+ if (typevar || parser->tok == TOKEN_TYPENAME) {
+ if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
+ ast_delete(switchnode);
+ return false;
+ }
+ continue;
+ }
+ if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
+ {
+ if (cvq == CV_WRONG) {
+ ast_delete(switchnode);
+ return false;
+ }
+ if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
+ ast_delete(switchnode);
+ return false;
+ }
+ continue;
+ }
+ break;
+ }
+
/* case list! */
while (parser->tok != '}') {
- ast_block *block;
+ ast_block *caseblock;
- if (parser->tok != TOKEN_KEYWORD) {
- ast_delete(switchnode);
- parseerror(parser, "expected 'case' or 'default'");
- return false;
- }
if (!strcmp(parser_tokval(parser), "case")) {
if (!parser_next(parser)) {
ast_delete(switchnode);
parseerror(parser, "expected expression for case");
return false;
}
- swcase.value = parse_expression_leave(parser, false);
+ swcase.value = parse_expression_leave(parser, false, false, false);
if (!swcase.value) {
ast_delete(switchnode);
parseerror(parser, "expected expression for case");
return false;
}
+ if (!OPTS_FLAG(RELAXED_SWITCH)) {
+ if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
+ parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
+ ast_unref(operand);
+ return false;
+ }
+ }
}
else if (!strcmp(parser_tokval(parser), "default")) {
swcase.value = NULL;
return false;
}
}
+ else {
+ ast_delete(switchnode);
+ parseerror(parser, "expected 'case' or 'default'");
+ return false;
+ }
/* Now the colon and body */
if (parser->tok != ':') {
parseerror(parser, "expected statements or case");
return false;
}
- block = ast_block_new(parser_ctx(parser));
- if (!block) {
+ caseblock = ast_block_new(parser_ctx(parser));
+ if (!caseblock) {
if (swcase.value) ast_unref(swcase.value);
ast_delete(switchnode);
return false;
}
- swcase.code = (ast_expression*)block;
+ swcase.code = (ast_expression*)caseblock;
vec_push(switchnode->cases, swcase);
while (true) {
ast_expression *expr;
break;
}
}
- if (!parse_statement(parser, block, &expr, true)) {
+ if (!parse_statement(parser, caseblock, &expr, true)) {
ast_delete(switchnode);
return false;
}
if (!expr)
continue;
- vec_push(block->exprs, expr);
+ if (!ast_block_add_expr(caseblock, expr)) {
+ ast_delete(switchnode);
+ return false;
+ }
}
}
+ parser_leaveblock(parser);
+
/* closing paren */
if (parser->tok != '}') {
ast_delete(switchnode);
return true;
}
+/* parse computed goto sides */
+static ast_expression *parse_goto_computed(parser_t *parser, ast_expression *side) {
+ ast_expression *on_true;
+ ast_expression *on_false;
+
+ if (!side)
+ return NULL;
+
+ if (ast_istype(side, ast_ternary)) {
+ on_true = parse_goto_computed(parser, ((ast_ternary*)side)->on_true);
+ on_false = parse_goto_computed(parser, ((ast_ternary*)side)->on_false);
+
+ if (!on_true || !on_false) {
+ parseerror(parser, "expected label or expression in ternary");
+ if (((ast_ternary*)side)->on_false) ast_unref(((ast_ternary*)side)->on_false);
+ if (((ast_ternary*)side)->on_true) ast_unref(((ast_ternary*)side)->on_true);
+ return NULL;
+ }
+
+ return (ast_expression*)ast_ifthen_new(parser_ctx(parser), ((ast_ternary*)side)->cond, on_true, on_false);
+ } else if (ast_istype(side, ast_label)) {
+ ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)side)->name);
+ ast_goto_set_label(gt, ((ast_label*)side));
+ return (ast_expression*)gt;
+ }
+ return NULL;
+}
+
+static bool parse_goto(parser_t *parser, ast_expression **out)
+{
+ ast_goto *gt = NULL;
+ ast_expression *lbl;
+
+ if (!parser_next(parser))
+ return false;
+
+ if (parser->tok != TOKEN_IDENT) {
+ ast_expression *expression;
+
+ /* could be an expression i.e computed goto :-) */
+ if (parser->tok != '(') {
+ parseerror(parser, "expected label name after `goto`");
+ return false;
+ }
+
+ /* failed to parse expression for goto */
+ if (!(expression = parse_expression(parser, false, true)) ||
+ !(*out = parse_goto_computed(parser, expression))) {
+ parseerror(parser, "invalid goto expression");
+ ast_unref(expression);
+ return false;
+ }
+
+ return true;
+ }
+
+ /* not computed goto */
+ gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
+ lbl = parser_find_label(parser, gt->name);
+ if (lbl) {
+ if (!ast_istype(lbl, ast_label)) {
+ parseerror(parser, "internal error: label is not an ast_label");
+ ast_delete(gt);
+ return false;
+ }
+ ast_goto_set_label(gt, (ast_label*)lbl);
+ }
+ else
+ vec_push(parser->gotos, gt);
+
+ if (!parser_next(parser) || parser->tok != ';') {
+ parseerror(parser, "semicolon expected after goto label");
+ return false;
+ }
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error after goto");
+ return false;
+ }
+
+ *out = (ast_expression*)gt;
+ return true;
+}
+
+static bool parse_skipwhite(parser_t *parser)
+{
+ do {
+ if (!parser_next(parser))
+ return false;
+ } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
+ return parser->tok < TOKEN_ERROR;
+}
+
+static bool parse_eol(parser_t *parser)
+{
+ if (!parse_skipwhite(parser))
+ return false;
+ return parser->tok == TOKEN_EOL;
+}
+
+static bool parse_pragma_do(parser_t *parser)
+{
+ if (!parser_next(parser) ||
+ parser->tok != TOKEN_IDENT ||
+ strcmp(parser_tokval(parser), "pragma"))
+ {
+ parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
+ return false;
+ }
+ if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
+ parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
+ return false;
+ }
+
+ if (!strcmp(parser_tokval(parser), "noref")) {
+ if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
+ parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
+ return false;
+ }
+ parser->noref = !!parser_token(parser)->constval.i;
+ if (!parse_eol(parser)) {
+ parseerror(parser, "parse error after `noref` pragma");
+ return false;
+ }
+ }
+ else
+ {
+ (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
+ return false;
+ }
+
+ return true;
+}
+
+static bool parse_pragma(parser_t *parser)
+{
+ bool rv;
+ parser->lex->flags.preprocessing = true;
+ parser->lex->flags.mergelines = true;
+ rv = parse_pragma_do(parser);
+ if (parser->tok != TOKEN_EOL) {
+ parseerror(parser, "junk after pragma");
+ rv = false;
+ }
+ parser->lex->flags.preprocessing = false;
+ parser->lex->flags.mergelines = false;
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error after pragma");
+ rv = false;
+ }
+ return rv;
+}
+
static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
{
- if (parser->tok == TOKEN_TYPENAME || parser->tok == '.')
+ bool noref, is_static;
+ int cvq = CV_NONE;
+ uint32_t qflags = 0;
+ ast_value *typevar = NULL;
+ char *vstring = NULL;
+
+ *out = NULL;
+
+ if (parser->tok == TOKEN_IDENT)
+ typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
+
+ if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
{
/* local variable */
if (!block) {
parseerror(parser, "cannot declare a variable from here");
return false;
}
- if (opts_standard == COMPILER_QCC) {
+ if (opts.standard == COMPILER_QCC) {
if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
return false;
}
- if (!parse_variable(parser, block, false))
+ if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
return false;
- *out = NULL;
return true;
}
+ else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
+ {
+ if (cvq == CV_WRONG)
+ return false;
+ return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
+ }
else if (parser->tok == TOKEN_KEYWORD)
{
- if (!strcmp(parser_tokval(parser), "local"))
+ if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
{
- if (!block) {
- parseerror(parser, "cannot declare a local variable here");
- return false;
- }
+ char ty[1024];
+ ast_value *tdef;
+
if (!parser_next(parser)) {
- parseerror(parser, "expected variable declaration");
+ parseerror(parser, "parse error after __builtin_debug_printtype");
return false;
}
- if (!parse_variable(parser, block, true))
- return false;
- *out = NULL;
+
+ if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
+ {
+ ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
+ con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
+ return false;
+ }
+ }
+ else
+ {
+ if (!parse_statement(parser, block, out, allow_cases))
+ return false;
+ if (!*out)
+ con_out("__builtin_debug_printtype: got no output node\n");
+ else
+ {
+ ast_type_to_string(*out, ty, sizeof(ty));
+ con_out("__builtin_debug_printtype: `%s`\n", ty);
+ }
+ }
return true;
}
else if (!strcmp(parser_tokval(parser), "return"))
}
else if (!strcmp(parser_tokval(parser), "for"))
{
- if (opts_standard == COMPILER_QCC) {
+ if (opts.standard == COMPILER_QCC) {
if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
return false;
}
}
return true;
}
+ else if (!strcmp(parser_tokval(parser), "goto"))
+ {
+ return parse_goto(parser, out);
+ }
+ else if (!strcmp(parser_tokval(parser), "typedef"))
+ {
+ if (!parser_next(parser)) {
+ parseerror(parser, "expected type definition after 'typedef'");
+ return false;
+ }
+ return parse_typedef(parser);
+ }
parseerror(parser, "Unexpected keyword");
return false;
}
else if (parser->tok == '{')
{
ast_block *inner;
- inner = parse_block(parser, false);
+ inner = parse_block(parser);
if (!inner)
return false;
*out = (ast_expression*)inner;
return true;
}
+ else if (parser->tok == ':')
+ {
+ size_t i;
+ ast_label *label;
+ if (!parser_next(parser)) {
+ parseerror(parser, "expected label name");
+ return false;
+ }
+ if (parser->tok != TOKEN_IDENT) {
+ parseerror(parser, "label must be an identifier");
+ return false;
+ }
+ label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
+ if (label) {
+ if (!label->undefined) {
+ parseerror(parser, "label `%s` already defined", label->name);
+ return false;
+ }
+ label->undefined = false;
+ }
+ else {
+ label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
+ vec_push(parser->labels, label);
+ }
+ *out = (ast_expression*)label;
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error after label");
+ return false;
+ }
+ for (i = 0; i < vec_size(parser->gotos); ++i) {
+ if (!strcmp(parser->gotos[i]->name, label->name)) {
+ ast_goto_set_label(parser->gotos[i], label);
+ vec_remove(parser->gotos, i, 1);
+ --i;
+ }
+ }
+ return true;
+ }
+ else if (parser->tok == ';')
+ {
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error after empty statement");
+ return false;
+ }
+ return true;
+ }
else
{
- ast_expression *exp = parse_expression(parser, false);
+ ast_expression *exp = parse_expression(parser, false, false);
if (!exp)
return false;
*out = exp;
- if (!ast_istype(exp, ast_store) &&
- !ast_istype(exp, ast_call) &&
- !ast_istype(exp, ast_binstore))
- {
+ if (!ast_side_effects(exp)) {
if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
return false;
}
}
}
-static bool GMQCC_WARN parser_pop_local(parser_t *parser)
-{
- bool rv = true;
- varentry_t *ve;
-
- ve = &vec_last(parser->locals);
- if (!parser->errors) {
- if (ast_istype(ve->var, ast_value) && !(((ast_value*)(ve->var))->uses)) {
- if (parsewarning(parser, WARN_UNUSED_VARIABLE, "unused variable: `%s`", ve->name))
- rv = false;
- }
- }
- mem_d(ve->name);
- vec_pop(parser->locals);
- return rv;
-}
-
-static bool parse_block_into(parser_t *parser, ast_block *block, bool warnreturn)
+static bool parse_block_into(parser_t *parser, ast_block *block)
{
- size_t oldblocklocal;
bool retval = true;
- oldblocklocal = parser->blocklocal;
- parser->blocklocal = vec_size(parser->locals);
+ parser_enterblock(parser);
if (!parser_next(parser)) { /* skip the '{' */
parseerror(parser, "expected function body");
while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
{
- ast_expression *expr;
+ ast_expression *expr = NULL;
if (parser->tok == '}')
break;
}
if (!expr)
continue;
- vec_push(block->exprs, expr);
+ if (!ast_block_add_expr(block, expr)) {
+ ast_delete(block);
+ block = NULL;
+ goto cleanup;
+ }
}
if (parser->tok != '}') {
block = NULL;
} else {
- if (warnreturn && parser->function->vtype->expression.next->expression.vtype != TYPE_VOID)
- {
- if (!vec_size(block->exprs) ||
- !ast_istype(vec_last(block->exprs), ast_return))
- {
- if (parsewarning(parser, WARN_MISSING_RETURN_VALUES, "control reaches end of non-void function")) {
- block = NULL;
- goto cleanup;
- }
- }
- }
(void)parser_next(parser);
}
cleanup:
- while (vec_size(parser->locals) > parser->blocklocal)
- retval = retval && parser_pop_local(parser);
- parser->blocklocal = oldblocklocal;
- return !!block;
+ if (!parser_leaveblock(parser))
+ retval = false;
+ return retval && !!block;
}
-static ast_block* parse_block(parser_t *parser, bool warnreturn)
+static ast_block* parse_block(parser_t *parser)
{
ast_block *block;
block = ast_block_new(parser_ctx(parser));
if (!block)
return NULL;
- if (!parse_block_into(parser, block, warnreturn)) {
+ if (!parse_block_into(parser, block)) {
ast_block_delete(block);
return NULL;
}
return block;
}
-static ast_expression* parse_statement_or_block(parser_t *parser)
+static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
{
- ast_expression *expr = NULL;
- if (parser->tok == '{')
- return (ast_expression*)parse_block(parser, false);
- if (!parse_statement(parser, NULL, &expr, false))
- return NULL;
- return expr;
+ if (parser->tok == '{') {
+ *out = (ast_expression*)parse_block(parser);
+ return !!*out;
+ }
+ return parse_statement(parser, NULL, out, false);
}
-/* loop method */
-static bool create_vector_members(parser_t *parser, ast_value *var, varentry_t *ve)
+static bool create_vector_members(ast_value *var, ast_member **me)
{
size_t i;
size_t len = strlen(var->name);
for (i = 0; i < 3; ++i) {
- ve[i].var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, i);
- if (!ve[i].var)
- break;
-
- ve[i].name = (char*)mem_a(len+3);
- if (!ve[i].name) {
- ast_delete(ve[i].var);
+ char *name = (char*)mem_a(len+3);
+ memcpy(name, var->name, len);
+ name[len+0] = '_';
+ name[len+1] = 'x'+i;
+ name[len+2] = 0;
+ me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
+ mem_d(name);
+ if (!me[i])
break;
- }
-
- memcpy(ve[i].name, var->name, len);
- ve[i].name[len] = '_';
- ve[i].name[len+1] = 'x'+i;
- ve[i].name[len+2] = 0;
}
if (i == 3)
return true;
/* unroll */
- do {
- --i;
- mem_d(ve[i].name);
- ast_delete(ve[i].var);
- ve[i].name = NULL;
- ve[i].var = NULL;
- } while (i);
+ do { ast_member_delete(me[--i]); } while(i);
return false;
}
has_frame_think = false;
old = parser->function;
- if (var->expression.variadic) {
+ if (vec_size(parser->gotos) || vec_size(parser->labels)) {
+ parseerror(parser, "gotos/labels leaking");
+ return false;
+ }
+
+ if (var->expression.flags & AST_FLAG_VARIADIC) {
if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
"variadic function with implementation will not be able to access additional parameters"))
{
if (!parser_next(parser))
return false;
- framenum = parse_expression_leave(parser, true);
+ framenum = parse_expression_leave(parser, true, false, false);
if (!framenum) {
parseerror(parser, "expected a framenumber constant in[frame,think] notation");
return false;
}
- if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->isconst) {
+ if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
ast_unref(framenum);
parseerror(parser, "framenumber in [frame,think] notation must be a constant");
return false;
{
/* 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;
return false;
}
- varent.var = (ast_expression*)thinkfunc;
- varent.name = util_strdup(thinkfunc->name);
- vec_push(parser->globals, varent);
+ vec_push(parser->globals, (ast_expression*)thinkfunc);
+ util_htset(parser->htglobals, thinkfunc->name, thinkfunc);
+
nextthink = (ast_expression*)thinkfunc;
} else {
- nextthink = parse_expression_leave(parser, true);
+ nextthink = parse_expression_leave(parser, true, false, false);
if (!nextthink) {
ast_unref(framenum);
parseerror(parser, "expected a think-function in [frame,think] notation");
if (store_think) ast_delete(store_think);
retval = false;
}
- vec_push(block->exprs, (ast_expression*)store_frame);
- vec_push(block->exprs, (ast_expression*)store_nextthink);
- vec_push(block->exprs, (ast_expression*)store_think);
+ if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
+ !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
+ !ast_block_add_expr(block, (ast_expression*)store_think))
+ {
+ retval = false;
+ }
}
if (!retval) {
}
}
+ parser_enterblock(parser);
+
for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
size_t e;
- varentry_t ve[3];
ast_value *param = var->expression.params[parami];
+ ast_member *me[3];
if (param->expression.vtype != TYPE_VECTOR &&
(param->expression.vtype != TYPE_FIELD ||
continue;
}
- if (!create_vector_members(parser, param, ve)) {
+ if (!create_vector_members(param, me)) {
ast_block_delete(block);
return false;
}
for (e = 0; e < 3; ++e) {
- vec_push(parser->locals, ve[e]);
- ast_block_collect(block, ve[e].var);
- ve[e].var = NULL; /* collected */
+ parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
+ ast_block_collect(block, (ast_expression*)me[e]);
}
}
vec_push(parser->functions, func);
parser->function = func;
- if (!parse_block_into(parser, block, true)) {
+ if (!parse_block_into(parser, block)) {
ast_block_delete(block);
goto enderrfn;
}
vec_push(func->blocks, block);
parser->function = old;
- while (vec_size(parser->locals))
- retval = retval && parser_pop_local(parser);
+ if (!parser_leaveblock(parser))
+ retval = false;
+ if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
+ parseerror(parser, "internal error: local scopes left");
+ retval = false;
+ }
if (parser->tok == ';')
return parser_next(parser);
- else if (opts_standard == COMPILER_QCC)
+ else if (opts.standard == COMPILER_QCC)
parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
return retval;
var->constval.vfunc = NULL;
enderr:
- while (vec_size(parser->locals)) {
- mem_d(vec_last(parser->locals).name);
- vec_pop(parser->locals);
- }
+ (void)!parser_leaveblock(parser);
parser->function = old;
return false;
}
lex_ctx ctx = ast_ctx(array);
if (from+1 == afterend) {
- // set this value
+ /* set this value */
ast_block *block;
ast_return *ret;
ast_array_index *subscript;
+ ast_store *st;
int assignop = type_store_instr[value->expression.vtype];
if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
if (!subscript)
return NULL;
- ast_store *st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
+ st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
if (!st) {
ast_delete(subscript);
return NULL;
return NULL;
}
- vec_push(block->exprs, (ast_expression*)st);
+ if (!ast_block_add_expr(block, (ast_expression*)st)) {
+ ast_delete(block);
+ return NULL;
+ }
ret = ast_return_new(ctx, NULL);
if (!ret) {
return NULL;
}
- vec_push(block->exprs, (ast_expression*)ret);
+ if (!ast_block_add_expr(block, (ast_expression*)ret)) {
+ ast_delete(block);
+ return NULL;
+ }
return (ast_expression*)block;
} else {
lex_ctx ctx = ast_ctx(array);
if (from+1 == afterend) {
- // set this value
+ /* set this value */
ast_block *block;
ast_return *ret;
ast_entfield *entfield;
ast_array_index *subscript;
+ ast_store *st;
int assignop = type_storep_instr[value->expression.vtype];
if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
return NULL;
}
- ast_store *st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
+ st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
if (!st) {
ast_delete(entfield);
return NULL;
return NULL;
}
- vec_push(block->exprs, (ast_expression*)st);
+ if (!ast_block_add_expr(block, (ast_expression*)st)) {
+ ast_delete(block);
+ return NULL;
+ }
ret = ast_return_new(ctx, NULL);
if (!ret) {
return NULL;
}
- vec_push(block->exprs, (ast_expression*)ret);
+ if (!ast_block_add_expr(block, (ast_expression*)ret)) {
+ ast_delete(block);
+ return NULL;
+ }
return (ast_expression*)block;
} else {
goto cleanup;
}
- vec_push(func->blocks[0]->exprs, root);
array->setter = fval;
- return true;
+ return ast_block_add_expr(func->blocks[0], root);
cleanup:
if (index) ast_delete(index);
if (value) ast_delete(value);
goto cleanup;
}
- vec_push(func->blocks[0]->exprs, root);
array->setter = fval;
- return true;
+ return ast_block_add_expr(func->blocks[0], root);
cleanup:
if (entity) ast_delete(entity);
if (index) ast_delete(index);
goto cleanup;
}
- vec_push(func->blocks[0]->exprs, root);
array->getter = fval;
- return true;
+ return ast_block_add_expr(func->blocks[0], root);
cleanup:
if (index) ast_delete(index);
if (root) ast_delete(root);
return false;
}
-static ast_value *parse_typename(parser_t *parser, ast_value **storebase);
+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 ctx;
else
{
/* for anything else just parse a typename */
- param = parse_typename(parser, NULL);
+ param = parse_typename(parser, NULL, NULL);
if (!param)
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;
}
}
}
+ if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
+ vec_free(params);
+
/* sanity check */
- if (vec_size(params) > 8 && opts_standard == COMPILER_QCC)
+ if (vec_size(params) > 8 && opts.standard == COMPILER_QCC)
(void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
/* parse-out */
/* now turn 'var' into a function type */
fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
fval->expression.next = (ast_expression*)var;
- fval->expression.variadic = variadic;
+ if (variadic)
+ fval->expression.flags |= AST_FLAG_VARIADIC;
var = fval;
var->expression.params = params;
return NULL;
}
- cexp = parse_expression_leave(parser, true);
+ cexp = parse_expression_leave(parser, true, false, false);
if (!cexp || !ast_istype(cexp, ast_value)) {
if (cexp)
* void() foo(), bar
* then the type-information 'void()' can be stored in 'storebase'
*/
-static ast_value *parse_typename(parser_t *parser, ast_value **storebase)
+static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
{
ast_value *var, *tmp;
lex_ctx ctx;
const char *name = NULL;
bool isfield = false;
bool wasarray = false;
+ size_t morefields = 0;
ctx = parser_ctx(parser);
parseerror(parser, "expected typename for field definition");
return NULL;
}
- if (parser->tok != TOKEN_TYPENAME) {
- parseerror(parser, "expected typename");
- return NULL;
+
+ /* Further dots are handled seperately because they won't be part of the
+ * basetype
+ */
+ while (parser->tok == '.') {
+ ++morefields;
+ 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) {
+ parseerror(parser, "expected typename");
+ return NULL;
+ }
/* generate the basic type value */
- var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
+ if (cached_typedef) {
+ var = ast_value_copy(cached_typedef);
+ ast_value_set_name(var, "<type(from_def)>");
+ } else
+ var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
+
+ for (; morefields; --morefields) {
+ tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
+ tmp->expression.next = (ast_expression*)var;
+ var = tmp;
+ }
+
/* do not yet turn into a field - remember:
* .void() foo; is a field too
* .void()() foo; is a function
}
/* now there may be function parens again */
- if (parser->tok == '(' && opts_standard == COMPILER_QCC)
+ if (parser->tok == '(' && opts.standard == COMPILER_QCC)
parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
if (parser->tok == '(' && wasarray)
parseerror(parser, "arrays as part of a return type is not supported");
return var;
}
-static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields)
+static bool parse_typedef(parser_t *parser)
+{
+ ast_value *typevar, *oldtype;
+ ast_expression *old;
+
+ typevar = parse_typename(parser, NULL, NULL);
+
+ if (!typevar)
+ return false;
+
+ if ( (old = parser_find_var(parser, typevar->name)) ) {
+ parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
+ " -> `%s` has been declared here: %s:%i",
+ typevar->name, ast_ctx(old).file, ast_ctx(old).line);
+ ast_delete(typevar);
+ return false;
+ }
+
+ if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
+ parseerror(parser, "type `%s` has already been declared here: %s:%i",
+ typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
+ ast_delete(typevar);
+ return false;
+ }
+
+ vec_push(parser->_typedefs, typevar);
+ util_htset(vec_last(parser->typedefs), typevar->name, typevar);
+
+ if (parser->tok != ';') {
+ parseerror(parser, "expected semicolon after typedef");
+ return false;
+ }
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error after typedef");
+ return false;
+ }
+
+ return true;
+}
+
+static const char *cvq_to_str(int cvq) {
+ switch (cvq) {
+ case CV_NONE: return "none";
+ case CV_VAR: return "`var`";
+ case CV_CONST: return "`const`";
+ default: return "<INVALID>";
+ }
+}
+
+static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
+{
+ bool av, ao;
+ if (proto->cvq != var->cvq) {
+ if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
+ !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
+ parser->tok == '='))
+ {
+ return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
+ "`%s` declared with different qualifiers: %s\n"
+ " -> previous declaration here: %s:%i uses %s",
+ var->name, cvq_to_str(var->cvq),
+ ast_ctx(proto).file, ast_ctx(proto).line,
+ cvq_to_str(proto->cvq));
+ }
+ }
+ av = (var ->expression.flags & AST_FLAG_NORETURN);
+ ao = (proto->expression.flags & AST_FLAG_NORETURN);
+ if (!av != !ao) {
+ return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
+ "`%s` declared with different attributes%s\n"
+ " -> previous declaration here: %s:%i",
+ var->name, (av ? ": noreturn" : ""),
+ ast_ctx(proto).file, ast_ctx(proto).line,
+ (ao ? ": noreturn" : ""));
+ }
+ return true;
+}
+
+static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref, bool is_static, uint32_t qflags, char *vstring)
{
ast_value *var;
ast_value *proto;
bool cleanvar = true;
bool wasarray = false;
- varentry_t varent, ve[3];
+ ast_member *me[3];
+
+ if (!localblock && is_static)
+ parseerror(parser, "`static` qualifier is not supported in global scope");
/* get the first complete variable */
- var = parse_typename(parser, &basetype);
+ var = parse_typename(parser, &basetype, cached_typedef);
if (!var) {
if (basetype)
ast_delete(basetype);
return false;
}
- memset(&varent, 0, sizeof(varent));
- memset(&ve, 0, sizeof(ve));
-
while (true) {
proto = NULL;
wasarray = false;
/* Part 0: finish the type */
if (parser->tok == '(') {
- if (opts_standard == COMPILER_QCC)
+ if (opts.standard == COMPILER_QCC)
parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
var = parse_parameter_list(parser, var);
if (!var) {
}
/* for functions returning functions */
while (parser->tok == '(') {
- if (opts_standard == COMPILER_QCC)
+ if (opts.standard == COMPILER_QCC)
parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
var = parse_parameter_list(parser, var);
if (!var) {
}
}
+ var->cvq = qualifier;
+ var->expression.flags |= qflags;
+ if (var->expression.flags & AST_FLAG_DEPRECATED)
+ var->desc = vstring;
+
/* 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
* is then filled with the previous definition and the parameter-names replaced.
*/
+ if (!strcmp(var->name, "nil")) {
+ if (OPTS_FLAG(UNTYPED_NIL)) {
+ if (!localblock || !OPTS_FLAG(PERMISSIVE))
+ parseerror(parser, "name `nil` not allowed (try -fpermissive)");
+ } else
+ (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
+ }
if (!localblock) {
/* Deal with end_sys_ vars */
was_end = false;
if (!strcmp(var->name, "end_sys_globals")) {
+ var->uses++;
parser->crc_globals = vec_size(parser->globals);
was_end = true;
}
else if (!strcmp(var->name, "end_sys_fields")) {
+ var->uses++;
parser->crc_fields = vec_size(parser->fields);
was_end = true;
}
goto cleanup;
*/
}
- if (opts_standard == COMPILER_QCC &&
+ if (opts.standard == COMPILER_QCC &&
(old = parser_find_global(parser, var->name)))
{
parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
goto cleanup;
}
proto = (ast_value*)old;
+ proto->desc = var->desc;
if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
proto->name,
/* we need the new parameter-names */
for (i = 0; i < vec_size(proto->expression.params); ++i)
ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
+ if (!parser_check_qualifiers(parser, var, proto)) {
+ retval = false;
+ if (proto->desc)
+ mem_d(proto->desc);
+ proto = NULL;
+ goto cleanup;
+ }
+ proto->expression.flags |= var->expression.flags;
ast_delete(var);
var = proto;
}
{
/* other globals */
if (old) {
- parseerror(parser, "global `%s` already declared here: %s:%i",
- var->name, ast_ctx(old).file, ast_ctx(old).line);
- retval = false;
- goto cleanup;
+ if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
+ "global `%s` already declared here: %s:%i",
+ var->name, ast_ctx(old).file, ast_ctx(old).line))
+ {
+ retval = false;
+ goto cleanup;
+ }
+ proto = (ast_value*)old;
+ if (!ast_istype(old, ast_value)) {
+ parseerror(parser, "internal error: not an ast_value");
+ retval = false;
+ proto = NULL;
+ goto cleanup;
+ }
+ if (!parser_check_qualifiers(parser, var, proto)) {
+ retval = false;
+ proto = NULL;
+ goto cleanup;
+ }
+ proto->expression.flags |= var->expression.flags;
+ ast_delete(var);
+ var = proto;
}
- if (opts_standard == COMPILER_QCC &&
+ if (opts.standard == COMPILER_QCC &&
(old = parser_find_field(parser, var->name)))
{
parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
}
else /* it's not a global */
{
- old = parser_find_local(parser, var->name, parser->blocklocal, &isparam);
+ old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
if (old && !isparam) {
parseerror(parser, "local `%s` already declared here: %s:%i",
var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
retval = false;
goto cleanup;
}
- if (opts_standard != COMPILER_GMQCC) {
+ if (opts.standard != COMPILER_GMQCC) {
ast_delete(var);
var = NULL;
goto skipvar;
}
}
+ /* in a noref section we simply bump the usecount */
+ if (noref || parser->noref)
+ var->uses++;
+
/* Part 2:
* Create the global/local, and deal with vector types.
*/
isvector = true;
if (isvector) {
- if (!create_vector_members(parser, var, ve)) {
+ if (!create_vector_members(var, me)) {
retval = false;
goto cleanup;
}
}
- varent.name = util_strdup(var->name);
- varent.var = (ast_expression*)var;
-
if (!localblock) {
/* deal with global variables, fields, functions */
- if (!nofields && var->expression.vtype == TYPE_FIELD) {
- vec_push(parser->fields, varent);
+ if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
+ var->isfield = true;
+ vec_push(parser->fields, (ast_expression*)var);
+ util_htset(parser->htfields, var->name, var);
if (isvector) {
- for (i = 0; i < 3; ++i)
- vec_push(parser->fields, ve[i]);
+ for (i = 0; i < 3; ++i) {
+ vec_push(parser->fields, (ast_expression*)me[i]);
+ util_htset(parser->htfields, me[i]->name, me[i]);
+ }
}
}
else {
- vec_push(parser->globals, varent);
+ vec_push(parser->globals, (ast_expression*)var);
+ util_htset(parser->htglobals, var->name, var);
if (isvector) {
- for (i = 0; i < 3; ++i)
- vec_push(parser->globals, ve[i]);
+ for (i = 0; i < 3; ++i) {
+ vec_push(parser->globals, (ast_expression*)me[i]);
+ util_htset(parser->htglobals, me[i]->name, me[i]);
+ }
}
}
} else {
- vec_push(parser->locals, varent);
- vec_push(localblock->locals, var);
- if (isvector) {
- for (i = 0; i < 3; ++i) {
- vec_push(parser->locals, ve[i]);
- ast_block_collect(localblock, ve[i].var);
- ve[i].var = NULL; /* from here it's being collected in the block */
+ if (is_static) {
+ /* a static adds itself to be generated like any other global
+ * but is added to the local namespace instead
+ */
+ char *defname = NULL;
+ size_t prefix_len, ln;
+
+ ln = strlen(parser->function->name);
+ vec_append(defname, ln, parser->function->name);
+
+ vec_append(defname, 2, "::");
+ /* remember the length up to here */
+ prefix_len = vec_size(defname);
+
+ /* Add it to the local scope */
+ util_htset(vec_last(parser->variables), var->name, (void*)var);
+
+ /* corrector */
+ correct_add (
+ vec_last(parser->correct_variables),
+ &vec_last(parser->correct_variables_score),
+ var->name
+ );
+
+ /* now rename the global */
+ ln = strlen(var->name);
+ vec_append(defname, ln, var->name);
+ ast_value_set_name(var, defname);
+
+ /* push it to the to-be-generated globals */
+ vec_push(parser->globals, (ast_expression*)var);
+
+ /* same game for the vector members */
+ if (isvector) {
+ for (i = 0; i < 3; ++i) {
+ util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
+
+ /* corrector */
+ correct_add(
+ vec_last(parser->correct_variables),
+ &vec_last(parser->correct_variables_score),
+ me[i]->name
+ );
+
+ vec_shrinkto(defname, prefix_len);
+ ln = strlen(me[i]->name);
+ vec_append(defname, ln, me[i]->name);
+ ast_member_set_name(me[i], defname);
+
+ vec_push(parser->globals, (ast_expression*)me[i]);
+ }
+ }
+ vec_free(defname);
+ } else {
+ vec_push(localblock->locals, var);
+ parser_addlocal(parser, var->name, (ast_expression*)var);
+ if (isvector) {
+ for (i = 0; i < 3; ++i) {
+ parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
+ ast_block_collect(localblock, (ast_expression*)me[i]);
+ }
}
}
}
-
- varent.name = NULL;
- ve[0].name = ve[1].name = ve[2].name = NULL;
- ve[0].var = ve[1].var = ve[2].var = NULL;
- cleanvar = false;
}
+ me[0] = me[1] = me[2] = NULL;
+ cleanvar = false;
/* Part 2.2
* deal with arrays
*/
if (parser->tok == ',')
goto another;
+ /*
if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
+ */
+ if (!var) {
parseerror(parser, "missing comma or semicolon while parsing variables");
break;
}
- if (localblock && opts_standard == COMPILER_QCC) {
+ if (localblock && opts.standard == COMPILER_QCC) {
if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
"initializing expression turns variable `%s` into a constant in this standard",
var->name) )
if (parser->tok != '{') {
if (parser->tok != '=') {
- parseerror(parser, "missing semicolon or initializer");
+ parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
break;
}
break;
}
}
- else if (opts_standard == COMPILER_QCC) {
+ else if (opts.standard == COMPILER_QCC) {
parseerror(parser, "expected '=' before function body in this standard");
}
if (parser->tok == '#') {
- ast_function *func;
+ ast_function *func = NULL;
if (localblock) {
parseerror(parser, "cannot declare builtins within functions");
parseerror(parser, "builtin number must be an integer constant");
break;
}
- if (parser_token(parser)->constval.i <= 0) {
+ if (parser_token(parser)->constval.i < 0) {
parseerror(parser, "builtin number must be an integer greater than zero");
break;
}
- func = ast_function_new(ast_ctx(var), var->name, var);
- if (!func) {
- parseerror(parser, "failed to allocate function for `%s`", var->name);
- break;
+ if (var->hasvalue) {
+ (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
+ "builtin `%s` has already been defined\n"
+ " -> previous declaration here: %s:%i",
+ var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
}
- vec_push(parser->functions, func);
+ else
+ {
+ func = ast_function_new(ast_ctx(var), var->name, var);
+ if (!func) {
+ parseerror(parser, "failed to allocate function for `%s`", var->name);
+ break;
+ }
+ vec_push(parser->functions, func);
- func->builtin = -parser_token(parser)->constval.i;
+ func->builtin = -parser_token(parser)->constval.i-1;
+ }
if (!parser_next(parser)) {
parseerror(parser, "expected comma or semicolon");
- ast_function_delete(func);
+ if (func)
+ ast_function_delete(func);
var->constval.vfunc = NULL;
break;
}
break;
}
+ if (proto)
+ ast_ctx(proto) = parser_ctx(parser);
+
if (!parse_function_body(parser, var))
break;
ast_delete(basetype);
+ for (i = 0; i < vec_size(parser->gotos); ++i)
+ parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
+ vec_free(parser->gotos);
+ vec_free(parser->labels);
return true;
} else {
ast_expression *cexp;
ast_value *cval;
- cexp = parse_expression_leave(parser, true);
+ cexp = parse_expression_leave(parser, true, false, false);
if (!cexp)
break;
if (!localblock) {
cval = (ast_value*)cexp;
- if (!ast_istype(cval, ast_value) || !cval->isconst)
+ if (cval != parser->nil &&
+ (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
+ )
+ {
parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
+ }
else
{
- var->isconst = true;
- if (cval->expression.vtype == TYPE_STRING)
- var->constval.vstring = parser_strdup(cval->constval.vstring);
+ if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
+ qualifier != CV_VAR)
+ {
+ var->cvq = CV_CONST;
+ }
+ if (cval == parser->nil)
+ var->expression.flags |= AST_FLAG_INITIALIZED;
else
- memcpy(&var->constval, &cval->constval, sizeof(var->constval));
- ast_unref(cval);
+ {
+ var->hasvalue = true;
+ if (cval->expression.vtype == TYPE_STRING)
+ var->constval.vstring = parser_strdup(cval->constval.vstring);
+ else if (cval->expression.vtype == TYPE_FIELD)
+ var->constval.vfield = cval;
+ else
+ memcpy(&var->constval, &cval->constval, sizeof(var->constval));
+ ast_unref(cval);
+ }
}
} else {
+ int cvq;
shunt sy = { NULL, NULL };
+ cvq = var->cvq;
+ var->cvq = CV_NONE;
vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
- if (!parser_sy_pop(parser, &sy))
+ if (!parser_sy_apply_operator(parser, &sy))
ast_unref(cexp);
else {
if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
parseerror(parser, "internal error: leaked operands");
- vec_push(localblock->exprs, (ast_expression*)sy.out[0].out);
+ if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
+ break;
}
vec_free(sy.out);
vec_free(sy.ops);
+ var->cvq = cvq;
}
}
ast_delete(basetype);
if (cleanvar && var)
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);
+ if (me[0]) ast_member_delete(me[0]);
+ if (me[1]) ast_member_delete(me[1]);
+ if (me[2]) ast_member_delete(me[2]);
return retval;
}
static bool parser_global_statement(parser_t *parser)
{
- if (parser->tok == TOKEN_TYPENAME || parser->tok == '.')
+ int cvq = CV_WRONG;
+ bool noref = false;
+ bool is_static = false;
+ uint32_t qflags = 0;
+ ast_value *istype = NULL;
+ char *vstring = NULL;
+
+ if (parser->tok == TOKEN_IDENT)
+ istype = parser_find_typedef(parser, parser_tokval(parser), 0);
+
+ if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
+ {
+ return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
+ }
+ else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
{
- return parse_variable(parser, NULL, false);
+ if (cvq == CV_WRONG)
+ return false;
+ return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
}
else if (parser->tok == TOKEN_KEYWORD)
{
- /* handle 'var' and 'const' */
- if (!strcmp(parser_tokval(parser), "var")) {
+ if (!strcmp(parser_tokval(parser), "typedef")) {
if (!parser_next(parser)) {
- parseerror(parser, "expected variable declaration after 'var'");
+ parseerror(parser, "expected type definition after 'typedef'");
return false;
}
- return parse_variable(parser, NULL, true);
+ return parse_typedef(parser);
}
+ parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
return false;
}
+ else if (parser->tok == '#')
+ {
+ return parse_pragma(parser);
+ }
else if (parser->tok == '$')
{
if (!parser_next(parser)) {
return true;
}
+static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
+{
+ return util_crc16(old, str, strlen(str));
+}
+
+static void progdefs_crc_file(const char *str)
+{
+ /* write to progdefs.h here */
+ (void)str;
+}
+
+static uint16_t progdefs_crc_both(uint16_t old, const char *str)
+{
+ old = progdefs_crc_sum(old, str);
+ progdefs_crc_file(str);
+ return old;
+}
+
+static void generate_checksum(parser_t *parser)
+{
+ uint16_t crc = 0xFFFF;
+ 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;
+}
+
static parser_t *parser;
bool parser_init()
{
+ lex_ctx empty_ctx;
size_t i;
+
parser = (parser_t*)mem_a(sizeof(parser_t));
if (!parser)
return false;
mem_d(parser);
return false;
}
+
+ vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
+ vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
+ vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
+ vec_push(parser->_blocktypedefs, 0);
+
+ empty_ctx.file = "<internal>";
+ empty_ctx.line = 0;
+ parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
+ parser->nil->cvq = CV_CONST;
+ if (OPTS_FLAG(UNTYPED_NIL))
+ util_htset(parser->htglobals, "nil", (void*)parser->nil);
return true;
}
if (!parser_global_statement(parser)) {
if (parser->tok == TOKEN_EOF)
parseerror(parser, "unexpected eof");
- else if (!parser->errors)
+ else if (compile_errors)
parseerror(parser, "there have been errors, bailing out");
lex_close(parser->lex);
parser->lex = NULL;
lex_close(parser->lex);
parser->lex = NULL;
- return !parser->errors;
+ return !compile_errors;
}
bool parser_compile_file(const char *filename)
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;
ast_delete(parser->imm_float[i]);
}
for (i = 0; i < vec_size(parser->fields); ++i) {
- ast_delete(parser->fields[i].var);
- mem_d(parser->fields[i].name);
+ ast_delete(parser->fields[i]);
}
for (i = 0; i < vec_size(parser->globals); ++i) {
- ast_delete(parser->globals[i].var);
- mem_d(parser->globals[i].name);
+ ast_delete(parser->globals[i]);
}
vec_free(parser->accessors);
vec_free(parser->functions);
vec_free(parser->imm_float);
vec_free(parser->globals);
vec_free(parser->fields);
- vec_free(parser->locals);
- mem_d(parser);
-}
+ for (i = 0; i < vec_size(parser->variables); ++i)
+ util_htdel(parser->variables[i]);
+ vec_free(parser->variables);
+ vec_free(parser->_blocklocals);
+ vec_free(parser->_locals);
-static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
-{
- return util_crc16(old, str, strlen(str));
-}
+ /* corrector */
+ for (i = 0; i < vec_size(parser->correct_variables); ++i) {
+ correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
+ }
+ for (i = 0; i < vec_size(parser->correct_variables_score); ++i) {
+ vec_free(parser->correct_variables_score[i]);
+ }
+ vec_free(parser->correct_variables);
+ vec_free(parser->correct_variables_score);
-static void progdefs_crc_file(const char *str)
-{
- /* write to progdefs.h here */
-}
-static uint16_t progdefs_crc_both(uint16_t old, const char *str)
-{
- old = progdefs_crc_sum(old, str);
- progdefs_crc_file(str);
- return old;
-}
+ for (i = 0; i < vec_size(parser->_typedefs); ++i)
+ ast_delete(parser->_typedefs[i]);
+ vec_free(parser->_typedefs);
+ for (i = 0; i < vec_size(parser->typedefs); ++i)
+ util_htdel(parser->typedefs[i]);
+ vec_free(parser->typedefs);
+ vec_free(parser->_blocktypedefs);
-static void generate_checksum(parser_t *parser)
-{
- uint16_t crc = 0xFFFF;
- size_t i;
+ vec_free(parser->_block_ctx);
+
+ vec_free(parser->labels);
+ vec_free(parser->gotos);
+ vec_free(parser->breaks);
+ vec_free(parser->continues);
- 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].var, ast_value))
- continue;
- switch (parser->globals[i].var->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, parser->globals[i].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].var, ast_value))
- continue;
- switch (parser->fields[i].var->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, parser->fields[i].name);
- crc = progdefs_crc_both(crc, ";\n");
- }
- crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
-
- code_crc = crc;
+ ast_value_delete(parser->nil);
+
+ mem_d(parser);
}
bool parser_finish(const char *output)
ir_builder *ir;
bool retval = true;
- if (!parser->errors)
- {
- ir = ir_builder_new("gmqcc_out");
- if (!ir) {
- con_out("failed to allocate builder\n");
+ if (compile_errors) {
+ con_out("*** there were compile errors\n");
+ return false;
+ }
+
+ ir = ir_builder_new("gmqcc_out");
+ if (!ir) {
+ con_out("failed to allocate builder\n");
+ return false;
+ }
+
+ for (i = 0; i < vec_size(parser->fields); ++i) {
+ ast_value *field;
+ bool hasvalue;
+ if (!ast_istype(parser->fields[i], ast_value))
+ continue;
+ field = (ast_value*)parser->fields[i];
+ hasvalue = field->hasvalue;
+ field->hasvalue = false;
+ if (!ast_global_codegen((ast_value*)field, ir, true)) {
+ con_out("failed to generate field %s\n", field->name);
+ ir_builder_delete(ir);
return false;
}
-
- for (i = 0; i < vec_size(parser->fields); ++i) {
- ast_value *field;
- bool isconst;
- if (!ast_istype(parser->fields[i].var, ast_value))
- continue;
- field = (ast_value*)parser->fields[i].var;
- isconst = field->isconst;
- field->isconst = false;
- if (!ast_global_codegen((ast_value*)field, ir, true)) {
- con_out("failed to generate field %s\n", field->name);
- ir_builder_delete(ir);
- return false;
- }
- if (isconst) {
- ir_value *ifld;
- ast_expression *subtype;
- field->isconst = true;
- subtype = field->expression.next;
- ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
- if (subtype->expression.vtype == TYPE_FIELD)
- ifld->fieldtype = subtype->expression.next->expression.vtype;
- else if (subtype->expression.vtype == TYPE_FUNCTION)
- ifld->outtype = subtype->expression.next->expression.vtype;
- (void)!ir_value_set_field(field->ir_v, ifld);
- }
- }
- for (i = 0; i < vec_size(parser->globals); ++i) {
- ast_value *asvalue;
- if (!ast_istype(parser->globals[i].var, ast_value))
- continue;
- asvalue = (ast_value*)(parser->globals[i].var);
- if (!asvalue->uses && !asvalue->isconst && asvalue->expression.vtype != TYPE_FUNCTION) {
- if (strcmp(asvalue->name, "end_sys_globals") &&
- strcmp(asvalue->name, "end_sys_fields"))
- {
- retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
- "unused global: `%s`", asvalue->name);
- }
- }
- if (!ast_global_codegen(asvalue, ir, false)) {
- con_out("failed to generate global %s\n", parser->globals[i].name);
- ir_builder_delete(ir);
- return false;
- }
+ if (hasvalue) {
+ ir_value *ifld;
+ ast_expression *subtype;
+ field->hasvalue = true;
+ subtype = field->expression.next;
+ ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
+ if (subtype->expression.vtype == TYPE_FIELD)
+ ifld->fieldtype = subtype->expression.next->expression.vtype;
+ else if (subtype->expression.vtype == TYPE_FUNCTION)
+ ifld->outtype = subtype->expression.next->expression.vtype;
+ (void)!ir_value_set_field(field->ir_v, ifld);
}
- for (i = 0; i < vec_size(parser->imm_float); ++i) {
- if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
- con_out("failed to generate global %s\n", parser->imm_float[i]->name);
- ir_builder_delete(ir);
- return false;
- }
+ }
+ for (i = 0; i < vec_size(parser->globals); ++i) {
+ ast_value *asvalue;
+ if (!ast_istype(parser->globals[i], ast_value))
+ continue;
+ asvalue = (ast_value*)(parser->globals[i]);
+ if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
+ retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
+ "unused global: `%s`", asvalue->name);
}
- for (i = 0; i < vec_size(parser->imm_string); ++i) {
- if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
- con_out("failed to generate global %s\n", parser->imm_string[i]->name);
- ir_builder_delete(ir);
- return false;
- }
+ if (!ast_global_codegen(asvalue, ir, false)) {
+ con_out("failed to generate global %s\n", asvalue->name);
+ ir_builder_delete(ir);
+ return false;
}
- for (i = 0; i < vec_size(parser->imm_vector); ++i) {
- if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
- con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
- ir_builder_delete(ir);
- return false;
- }
+ }
+ for (i = 0; i < vec_size(parser->imm_float); ++i) {
+ if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
+ con_out("failed to generate global %s\n", parser->imm_float[i]->name);
+ ir_builder_delete(ir);
+ return false;
}
- for (i = 0; i < vec_size(parser->globals); ++i) {
- ast_value *asvalue;
- if (!ast_istype(parser->globals[i].var, ast_value))
- continue;
- asvalue = (ast_value*)(parser->globals[i].var);
- if (asvalue->setter) {
- if (!ast_global_codegen(asvalue->setter, ir, false) ||
- !ast_function_codegen(asvalue->setter->constval.vfunc, ir) ||
- !ir_function_finalize(asvalue->setter->constval.vfunc->ir_func))
- {
- printf("failed to generate setter for %s\n", parser->globals[i].name);
- ir_builder_delete(ir);
- return false;
- }
- }
- if (asvalue->getter) {
- if (!ast_global_codegen(asvalue->getter, ir, false) ||
- !ast_function_codegen(asvalue->getter->constval.vfunc, ir) ||
- !ir_function_finalize(asvalue->getter->constval.vfunc->ir_func))
- {
- printf("failed to generate getter for %s\n", parser->globals[i].name);
- ir_builder_delete(ir);
- return false;
- }
- }
+ }
+ for (i = 0; i < vec_size(parser->imm_string); ++i) {
+ if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
+ con_out("failed to generate global %s\n", parser->imm_string[i]->name);
+ ir_builder_delete(ir);
+ return false;
+ }
+ }
+ for (i = 0; i < vec_size(parser->imm_vector); ++i) {
+ if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
+ con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
+ ir_builder_delete(ir);
+ return false;
+ }
+ }
+ for (i = 0; i < vec_size(parser->globals); ++i) {
+ ast_value *asvalue;
+ if (!ast_istype(parser->globals[i], ast_value))
+ continue;
+ asvalue = (ast_value*)(parser->globals[i]);
+ if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
+ {
+ if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
+ (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
+ "uninitialized constant: `%s`",
+ asvalue->name);
+ else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
+ (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
+ "uninitialized global: `%s`",
+ asvalue->name);
+ }
+ if (!ast_generate_accessors(asvalue, ir)) {
+ ir_builder_delete(ir);
+ return false;
}
- for (i = 0; i < vec_size(parser->fields); ++i) {
- ast_value *asvalue;
- asvalue = (ast_value*)(parser->fields[i].var->expression.next);
+ }
+ for (i = 0; i < vec_size(parser->fields); ++i) {
+ ast_value *asvalue;
+ asvalue = (ast_value*)(parser->fields[i]->expression.next);
- if (!ast_istype((ast_expression*)asvalue, ast_value))
- continue;
- if (asvalue->expression.vtype != TYPE_ARRAY)
- continue;
- if (asvalue->setter) {
- if (!ast_global_codegen(asvalue->setter, ir, false) ||
- !ast_function_codegen(asvalue->setter->constval.vfunc, ir) ||
- !ir_function_finalize(asvalue->setter->constval.vfunc->ir_func))
- {
- printf("failed to generate setter for %s\n", parser->fields[i].name);
- ir_builder_delete(ir);
- return false;
- }
- }
- if (asvalue->getter) {
- if (!ast_global_codegen(asvalue->getter, ir, false) ||
- !ast_function_codegen(asvalue->getter->constval.vfunc, ir) ||
- !ir_function_finalize(asvalue->getter->constval.vfunc->ir_func))
- {
- printf("failed to generate getter for %s\n", parser->fields[i].name);
- ir_builder_delete(ir);
- return false;
- }
- }
+ if (!ast_istype((ast_expression*)asvalue, ast_value))
+ continue;
+ if (asvalue->expression.vtype != TYPE_ARRAY)
+ continue;
+ if (!ast_generate_accessors(asvalue, ir)) {
+ ir_builder_delete(ir);
+ return false;
}
- for (i = 0; i < vec_size(parser->functions); ++i) {
- if (!ast_function_codegen(parser->functions[i], ir)) {
- con_out("failed to generate function %s\n", parser->functions[i]->name);
- ir_builder_delete(ir);
- return false;
- }
- if (!ir_function_finalize(parser->functions[i]->ir_func)) {
- con_out("failed to finalize function %s\n", parser->functions[i]->name);
- ir_builder_delete(ir);
- return false;
- }
+ }
+ for (i = 0; i < vec_size(parser->functions); ++i) {
+ if (!ast_function_codegen(parser->functions[i], ir)) {
+ con_out("failed to generate function %s\n", parser->functions[i]->name);
+ ir_builder_delete(ir);
+ return false;
+ }
+ }
+ if (opts.dump)
+ ir_builder_dump(ir, con_out);
+ for (i = 0; i < vec_size(parser->functions); ++i) {
+ if (!ir_function_finalize(parser->functions[i]->ir_func)) {
+ con_out("failed to finalize function %s\n", parser->functions[i]->name);
+ ir_builder_delete(ir);
+ return false;
}
+ }
- if (retval) {
- if (opts_dump)
- ir_builder_dump(ir, con_out);
+ if (compile_Werrors) {
+ con_out("*** there were warnings treated as errors\n");
+ compile_show_werrors();
+ retval = false;
+ }
- generate_checksum(parser);
+ if (retval) {
+ if (opts.dumpfin)
+ ir_builder_dump(ir, con_out);
- if (!ir_builder_generate(ir, output)) {
- con_out("*** failed to generate output file\n");
- ir_builder_delete(ir);
- return false;
- }
- }
+ generate_checksum(parser);
- ir_builder_delete(ir);
- return retval;
+ if (!ir_builder_generate(ir, output)) {
+ con_out("*** failed to generate output file\n");
+ ir_builder_delete(ir);
+ return false;
+ }
}
- con_out("*** there were compile errors\n");
- return false;
+ ir_builder_delete(ir);
+ return retval;
}
projects / xonotic / gmqcc.git / blobdiff