X-Git-Url: https://git.xonotic.org/?p=xonotic%2Fgmqcc.git;a=blobdiff_plain;f=parser.c;h=d2c8bffe8aa28ec5f66dfb97f2024ae114e9412e;hp=62b321a0c2a21f7cd36a05e26ec1a248785d00db;hb=efe35ed02ba7abe6784ae67d6a104f5392cf2eac;hpb=b851f542ac90d88c25f8a595dc51e56f7bb53ae1

diff --git a/parser.c b/parser.c
index 62b321a..d2c8bff 100644
--- a/parser.c
+++ b/parser.c
@@ -44,6 +44,7 @@ typedef struct {
     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;
@@ -57,6 +58,12 @@ typedef struct {
 
     ast_function *function;
 
+    /* All the labels the function defined...
+     * Should they be in ast_function instead?
+     */
+    ast_label **labels;
+    ast_goto  **gotos;
+
     /* A list of hashtables for each scope */
     ht *variables;
     ht htfields;
@@ -68,6 +75,7 @@ typedef struct {
     size_t          *_blocklocals;
     ast_value      **_typedefs;
     size_t          *_blocktypedefs;
+    lex_ctx         *_block_ctx;
 
     size_t errors;
 
@@ -79,15 +87,22 @@ typedef struct {
      * 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 { POT_PAREN, POT_TERNARY1, POT_TERNARY2 } *pot;
 } parser_t;
 
 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_variable(parser_t *parser, ast_block *localblock, bool nofields, bool is_const, ast_value *cached_typedef);
-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 bool parse_typedef(parser_t *parser);
+static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef);
+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);
@@ -209,7 +224,8 @@ static ast_value* parser_const_float(parser_t *parser, double d)
             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;
@@ -240,7 +256,7 @@ static char *parser_strdup(const char *str)
     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;
@@ -248,8 +264,14 @@ static ast_value* parser_const_string(parser_t *parser, const char *str)
         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;
@@ -264,7 +286,8 @@ static ast_value* parser_const_vector(parser_t *parser, vector v)
             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;
@@ -336,13 +359,13 @@ static ast_expression* parser_find_var(parser_t *parser, const char *name)
     return v;
 }
 
-static ast_value* parser_find_typedef(parser_t *parser, const char *name)
+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 > 0;) {
+    for (i = vec_size(parser->typedefs); i > upto;) {
         --i;
         if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
             return e;
@@ -368,6 +391,7 @@ typedef struct
 #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;
@@ -465,6 +489,7 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
     ast_expression *exprs[3];
     ast_block      *blocks[3];
     ast_value      *asvalue[3];
+    ast_binstore   *asbinstore;
     size_t i, assignop, addop, subop;
     qcint  generated_op = 0;
 
@@ -494,6 +519,10 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
 
     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;
@@ -510,7 +539,7 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
              (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))
 #define CanConstFold(A, B) \
              (CanConstFold1(A) && CanConstFold1(B))
 #define ConstV(i) (asvalue[(i)]->constval.vvec)
@@ -557,22 +586,25 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
             out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
             if (rotate_entfield_array_index_nodes(&out))
             {
+#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]);
+                ast_block_add_expr(blocks[0], exprs[1]);
             } else {
                 blocks[0] = ast_block_new(ctx);
-                vec_push(blocks[0]->exprs, exprs[0]);
-                vec_push(blocks[0]->exprs, exprs[1]);
+                ast_block_add_expr(blocks[0], exprs[0]);
+                ast_block_add_expr(blocks[0], exprs[1]);
             }
             if (!ast_block_set_type(blocks[0], exprs[1]))
                 return false;
@@ -580,6 +612,9 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
             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:
@@ -801,6 +836,7 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
             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],
@@ -809,6 +845,7 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
                 parseerror(parser, "TODO: optional early out");
                 return false;
             }
+#endif
             if (opts_standard == COMPILER_GMQCC)
                 con_out("TODO: early out logic\n");
             if (CanConstFold(exprs[0], exprs[1]))
@@ -819,10 +856,15 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
             break;
 
         case opid2('?',':'):
+            if (vec_last(parser->pot) != POT_TERNARY2) {
+                parseerror(parser, "mismatched parenthesis/ternary");
+                return false;
+            }
+            vec_pop(parser->pot);
             if (exprs[1]->expression.vtype != exprs[2]->expression.vtype) {
                 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]))
@@ -880,7 +922,7 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
                 if (!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)
                     {
@@ -914,7 +956,7 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
                 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)
                     {
@@ -928,6 +970,9 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
                         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'):
@@ -942,6 +987,9 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
                 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],
@@ -967,6 +1015,9 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
                 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],
@@ -993,6 +1044,9 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
                            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
@@ -1027,6 +1081,9 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
                            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
@@ -1068,6 +1125,9 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
                            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
@@ -1095,7 +1155,12 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
             out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
             if (!out)
                 return false;
-            out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
+            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
@@ -1253,6 +1318,18 @@ static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
                 return false;
             return true;
         }
+        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_pop(parser, sy))
             return false;
     }
@@ -1297,7 +1374,40 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
         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 false;
+            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) {
@@ -1334,8 +1444,14 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
                 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
                 goto onerr;
             }
-            if (ast_istype(var, ast_value))
+            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++;
+            }
             vec_push(sy.out, syexp(parser_ctx(parser), var));
             DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser)));
         }
@@ -1352,7 +1468,7 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
             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");
@@ -1372,7 +1488,7 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
                 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;
             vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
@@ -1412,6 +1528,11 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
                 /* 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;
@@ -1420,6 +1541,11 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
                 /* 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;
         }
@@ -1431,6 +1557,11 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
                 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_OPERATOR) {
@@ -1474,6 +1605,12 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
                 break;
             }
 
+            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];
 
@@ -1511,11 +1648,11 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
                 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"));
                 }
@@ -1525,7 +1662,7 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
                     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));
@@ -1533,12 +1670,24 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
             } 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));
@@ -1569,6 +1718,11 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma
     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:
@@ -1596,6 +1750,7 @@ static void parser_enterblock(parser_t *parser)
     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));
 }
 
 static bool parser_leaveblock(parser_t *parser)
@@ -1622,8 +1777,10 @@ static bool parser_leaveblock(parser_t *parser)
         ast_value      *v = (ast_value*)e;
         vec_pop(parser->_locals);
         if (ast_istype(e, ast_value) && !v->uses) {
-            if (parsewarning(parser, WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
+            if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name)) {
+                parser->errors++;
                 rv = false;
+            }
         }
     }
 
@@ -1635,6 +1792,7 @@ static bool parser_leaveblock(parser_t *parser)
     util_htdel(vec_last(parser->typedefs));
     vec_pop(parser->typedefs);
 
+    vec_pop(parser->_block_ctx);
     return rv;
 }
 
@@ -1659,7 +1817,7 @@ static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
         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");
@@ -1691,8 +1849,7 @@ static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
         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;
     }
@@ -1705,8 +1862,7 @@ static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
             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;
@@ -1756,8 +1912,7 @@ static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out
         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;
     }
@@ -1781,8 +1936,7 @@ static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **o
         parseerror(parser, "expected loop body");
         return false;
     }
-    ontrue = parse_statement_or_block(parser);
-    if (!ontrue)
+    if (!parse_statement_or_block(parser, &ontrue))
         return false;
 
     /* expect the "while" */
@@ -1866,7 +2020,7 @@ static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
 
     typevar = NULL;
     if (parser->tok == TOKEN_IDENT)
-        typevar = parser_find_typedef(parser, parser_tokval(parser));
+        typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
 
     if (typevar || parser->tok == TOKEN_TYPENAME) {
         if (opts_standard != COMPILER_GMQCC) {
@@ -1874,10 +2028,7 @@ static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
                              "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, false, typevar))
+        if (!parse_variable(parser, block, true, CV_VAR, typevar))
             goto onerr;
     }
     else if (parser->tok != ';')
@@ -1919,10 +2070,7 @@ static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
         increment = parse_expression_leave(parser, 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;
         }
@@ -1938,10 +2086,8 @@ static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
         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);
     *out = (ast_expression*)aloop;
@@ -1963,6 +2109,8 @@ static bool parse_return(parser_t *parser, ast_block *block, ast_expression **ou
     ast_return     *ret = NULL;
     ast_value      *expected = parser->function->vtype;
 
+    lex_ctx ctx = parser_ctx(parser);
+
     (void)block; /* not touching */
 
     if (!parser_next(parser)) {
@@ -1993,7 +2141,7 @@ static bool parse_return(parser_t *parser, ast_block *block, ast_expression **ou
             else
                 parseerror(parser, "return without value");
         }
-        ret = ast_return_new(parser_ctx(parser), NULL);
+        ret = ast_return_new(ctx, NULL);
     }
     *out = (ast_expression*)ret;
     return true;
@@ -2021,12 +2169,14 @@ static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **ou
 {
     ast_expression *operand;
     ast_value      *opval;
+    ast_value      *typevar;
     ast_switch     *switchnode;
     ast_switch_case swcase;
 
     lex_ctx ctx = parser_ctx(parser);
 
     (void)block; /* not touching */
+    (void)opval;
 
     /* parse over the opening paren */
     if (!parser_next(parser) || parser->tok != '(') {
@@ -2044,15 +2194,6 @@ static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **ou
     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 */
@@ -2075,6 +2216,55 @@ static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **ou
         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)) {
+                ast_delete(switchnode);
+                return false;
+            }
+            continue;
+        }
+        if (!strcmp(parser_tokval(parser), "var") ||
+            !strcmp(parser_tokval(parser), "local"))
+        {
+            if (!parser_next(parser)) {
+                parseerror(parser, "expected variable declaration");
+                ast_delete(switchnode);
+                return false;
+            }
+            if (!parse_variable(parser, block, false, CV_VAR, NULL)) {
+                ast_delete(switchnode);
+                return false;
+            }
+            continue;
+        }
+        if (!strcmp(parser_tokval(parser), "const")) {
+            if (!parser_next(parser)) {
+                parseerror(parser, "expected variable declaration");
+                ast_delete(switchnode);
+                return false;
+            }
+            if (!strcmp(parser_tokval(parser), "var")) {
+                if (!parser_next(parser)) {
+                    parseerror(parser, "expected variable declaration");
+                    ast_delete(switchnode);
+                    return false;
+                }
+            }
+            if (!parse_variable(parser, block, false, CV_CONST, NULL)) {
+                ast_delete(switchnode);
+                return false;
+            }
+            continue;
+        }
+        break;
+    }
+
     /* case list! */
     while (parser->tok != '}') {
         ast_block *caseblock;
@@ -2096,6 +2286,14 @@ static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **ou
                 parseerror(parser, "expected expression for case");
                 return false;
             }
+            if (!OPTS_FLAG(RELAXED_SWITCH)) {
+                opval = (ast_value*)swcase.value;
+                if (!ast_istype(swcase.value, ast_value)) { /* || opval->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;
@@ -2145,10 +2343,12 @@ static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **ou
             }
             if (!expr)
                 continue;
-            vec_push(caseblock->exprs, expr);
+            ast_block_add_expr(caseblock, expr);
         }
     }
 
+    parser_leaveblock(parser);
+
     /* closing paren */
     if (parser->tok != '}') {
         ast_delete(switchnode);
@@ -2164,11 +2364,48 @@ static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **ou
     return true;
 }
 
+static bool parse_goto(parser_t *parser, ast_expression **out)
+{
+    size_t    i;
+    ast_goto *gt;
+
+    if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
+        parseerror(parser, "expected label name after `goto`");
+        return false;
+    }
+
+    gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
+
+    for (i = 0; i < vec_size(parser->labels); ++i) {
+        if (!strcmp(parser->labels[i]->name, parser_tokval(parser))) {
+            ast_goto_set_label(gt, parser->labels[i]);
+            break;
+        }
+    }
+    if (i == vec_size(parser->labels))
+        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_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
 {
+    int cvq;
     ast_value *typevar = NULL;
+    *out = NULL;
+
     if (parser->tok == TOKEN_IDENT)
-        typevar = parser_find_typedef(parser, parser_tokval(parser));
+        typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
 
     if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
     {
@@ -2181,15 +2418,29 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression *
             if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
                 return false;
         }
-        if (!parse_variable(parser, block, false, false, typevar))
+        if (!parse_variable(parser, block, false, CV_NONE, typevar))
             return false;
         *out = NULL;
         return true;
     }
+    else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "var"))
+    {
+        goto ident_var;
+    }
     else if (parser->tok == TOKEN_KEYWORD)
     {
-        if (!strcmp(parser_tokval(parser), "local"))
+        if (!strcmp(parser_tokval(parser), "local") ||
+            !strcmp(parser_tokval(parser), "const") ||
+            !strcmp(parser_tokval(parser), "var"))
         {
+ident_var:
+            if (parser_tokval(parser)[0] == 'c')
+                cvq = CV_CONST;
+            else if (parser_tokval(parser)[0] == 'v')
+                cvq = CV_VAR;
+            else
+                cvq = CV_NONE;
+
             if (!block) {
                 parseerror(parser, "cannot declare a local variable here");
                 return false;
@@ -2198,11 +2449,44 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression *
                 parseerror(parser, "expected variable declaration");
                 return false;
             }
-            if (!parse_variable(parser, block, true, false, NULL))
+            if (!parse_variable(parser, block, true, cvq, NULL))
                 return false;
             *out = NULL;
             return true;
         }
+        else if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
+        {
+            char ty[1024];
+            ast_value *tdef;
+
+            if (!parser_next(parser)) {
+                parseerror(parser, "parse error after __builtin_debug_printtype");
+                return false;
+            }
+
+            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"))
         {
             return parse_return(parser, block, out);
@@ -2248,28 +2532,75 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression *
             }
             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_new(parser_ctx(parser), parser_tokval(parser));
+        if (!label)
+            return 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);
         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;
         }
@@ -2277,7 +2608,7 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression *
     }
 }
 
-static bool parse_block_into(parser_t *parser, ast_block *block, bool warnreturn)
+static bool parse_block_into(parser_t *parser, ast_block *block)
 {
     bool   retval = true;
 
@@ -2290,7 +2621,7 @@ static bool parse_block_into(parser_t *parser, ast_block *block, bool warnreturn
 
     while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
     {
-        ast_expression *expr;
+        ast_expression *expr = NULL;
         if (parser->tok == '}')
             break;
 
@@ -2301,23 +2632,12 @@ static bool parse_block_into(parser_t *parser, ast_block *block, bool warnreturn
         }
         if (!expr)
             continue;
-        vec_push(block->exprs, expr);
+        ast_block_add_expr(block, expr);
     }
 
     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);
     }
 
@@ -2327,27 +2647,26 @@ cleanup:
     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);
 }
 
 static bool create_vector_members(ast_value *var, ast_member **me)
@@ -2393,6 +2712,11 @@ static bool parse_function_body(parser_t *parser, ast_value *var)
     has_frame_think = false;
     old = parser->function;
 
+    if (vec_size(parser->gotos) || vec_size(parser->labels)) {
+        parseerror(parser, "gotos/labels leaking");
+        return false;
+    }
+
     if (var->expression.variadic) {
         if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
                          "variadic function with implementation will not be able to access additional parameters"))
@@ -2434,7 +2758,7 @@ static bool parse_function_body(parser_t *parser, ast_value *var)
             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;
@@ -2573,9 +2897,9 @@ static bool parse_function_body(parser_t *parser, ast_value *var)
                 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);
+            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);
         }
 
         if (!retval) {
@@ -2621,7 +2945,7 @@ static bool parse_function_body(parser_t *parser, ast_value *var)
     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;
     }
@@ -2724,7 +3048,7 @@ static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast
             return NULL;
         }
 
-        vec_push(block->exprs, (ast_expression*)st);
+        ast_block_add_expr(block, (ast_expression*)st);
 
         ret = ast_return_new(ctx, NULL);
         if (!ret) {
@@ -2732,7 +3056,7 @@ static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast
             return NULL;
         }
 
-        vec_push(block->exprs, (ast_expression*)ret);
+        ast_block_add_expr(block, (ast_expression*)ret);
 
         return (ast_expression*)block;
     } else {
@@ -2793,7 +3117,7 @@ static ast_expression *array_field_setter_node(
             return NULL;
         }
 
-        vec_push(block->exprs, (ast_expression*)st);
+        ast_block_add_expr(block, (ast_expression*)st);
 
         ret = ast_return_new(ctx, NULL);
         if (!ret) {
@@ -2801,7 +3125,7 @@ static ast_expression *array_field_setter_node(
             return NULL;
         }
 
-        vec_push(block->exprs, (ast_expression*)ret);
+        ast_block_add_expr(block, (ast_expression*)ret);
 
         return (ast_expression*)block;
     } else {
@@ -2913,7 +3237,7 @@ static bool parser_create_array_setter(parser_t *parser, ast_value *array, const
         goto cleanup;
     }
 
-    vec_push(func->blocks[0]->exprs, root);
+    ast_block_add_expr(func->blocks[0], root);
     array->setter = fval;
     return true;
 cleanup:
@@ -2962,7 +3286,7 @@ static bool parser_create_array_field_setter(parser_t *parser, ast_value *array,
         goto cleanup;
     }
 
-    vec_push(func->blocks[0]->exprs, root);
+    ast_block_add_expr(func->blocks[0], root);
     array->setter = fval;
     return true;
 cleanup:
@@ -3009,7 +3333,7 @@ static bool parser_create_array_getter(parser_t *parser, ast_value *array, const
         goto cleanup;
     }
 
-    vec_push(func->blocks[0]->exprs, root);
+    ast_block_add_expr(func->blocks[0], root);
     array->getter = fval;
     return true;
 cleanup:
@@ -3084,6 +3408,9 @@ static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
         }
     }
 
+    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)
         (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
@@ -3189,6 +3516,7 @@ static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_va
     const char *name = NULL;
     bool        isfield  = false;
     bool        wasarray = false;
+    size_t      morefields = 0;
 
     ctx = parser_ctx(parser);
 
@@ -3200,13 +3528,24 @@ static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_va
             parseerror(parser, "expected typename for field definition");
             return NULL;
         }
-        if (parser->tok == TOKEN_IDENT)
-            cached_typedef = parser_find_typedef(parser, parser_tokval(parser));
-        if (!cached_typedef && 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 */
     if (cached_typedef) {
@@ -3214,6 +3553,13 @@ static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_va
         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
@@ -3321,7 +3667,7 @@ static bool parse_typedef(parser_t *parser)
         return false;
     }
 
-    if ( (oldtype = parser_find_typedef(parser, typevar->name)) ) {
+    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);
@@ -3343,7 +3689,7 @@ static bool parse_typedef(parser_t *parser)
     return true;
 }
 
-static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, bool is_const, ast_value *cached_typedef)
+static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef)
 {
     ast_value *var;
     ast_value *proto;
@@ -3406,6 +3752,8 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield
             }
         }
 
+        var->cvq = qualifier;
+
         /* 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
@@ -3506,6 +3854,15 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield
                                 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;
+                            }
+                            ast_delete(var);
+                            var = proto;
                         }
                     }
                     if (opts_standard == COMPILER_QCC &&
@@ -3547,9 +3904,6 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield
             }
         }
 
-        if (is_const)
-            var->isconst = true;
-
         /* Part 2:
          * Create the global/local, and deal with vector types.
          */
@@ -3569,7 +3923,8 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield
 
             if (!localblock) {
                 /* deal with global variables, fields, functions */
-                if (!nofields && var->expression.vtype == TYPE_FIELD) {
+                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) {
@@ -3600,9 +3955,9 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield
                 }
             }
 
-            me[0] = me[1] = me[2] = NULL;
-            cleanvar = false;
         }
+        me[0] = me[1] = me[2] = NULL;
+        cleanvar = false;
         /* Part 2.2
          * deal with arrays
          */
@@ -3657,7 +4012,10 @@ skipvar:
         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;
         }
@@ -3673,7 +4031,7 @@ skipvar:
 
         if (parser->tok != '{') {
             if (parser->tok != '=') {
-                parseerror(parser, "missing semicolon or initializer");
+                parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
                 break;
             }
 
@@ -3705,12 +4063,12 @@ skipvar:
                 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;
             }
 
-            if (var->isconst) {
+            if (var->hasvalue) {
                 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
                                     "builtin `%s` has already been defined\n"
                                     " -> previous declaration here: %s:%i",
@@ -3725,7 +4083,7 @@ skipvar:
                 }
                 vec_push(parser->functions, func);
 
-                func->builtin = -parser_token(parser)->constval.i;
+                func->builtin = -parser_token(parser)->constval.i-1;
             }
 
             if (!parser_next(parser)) {
@@ -3738,14 +4096,22 @@ skipvar:
         }
         else if (parser->tok == '{' || parser->tok == '[')
         {
+            size_t i;
             if (localblock) {
                 parseerror(parser, "cannot declare functions within functions");
                 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;
@@ -3757,19 +4123,30 @@ skipvar:
 
             if (!localblock) {
                 cval = (ast_value*)cexp;
-                if (!ast_istype(cval, ast_value) || !cval->isconst)
+                if (!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 (opts_standard != COMPILER_GMQCC &&
+                        !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
+                        qualifier != CV_VAR)
+                    {
+                        var->cvq = CV_CONST;
+                    }
+                    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 {
+                bool 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));
@@ -3778,10 +4155,11 @@ skipvar:
                 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);
+                    ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out);
                 }
                 vec_free(sy.out);
                 vec_free(sy.ops);
+                var->cvq = cvq;
             }
         }
 
@@ -3839,11 +4217,11 @@ static bool parser_global_statement(parser_t *parser)
 {
     ast_value *istype = NULL;
     if (parser->tok == TOKEN_IDENT)
-        istype = parser_find_typedef(parser, parser_tokval(parser));
+        istype = parser_find_typedef(parser, parser_tokval(parser), 0);
 
     if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
     {
-        return parse_variable(parser, NULL, false, false, istype);
+        return parse_variable(parser, NULL, false, CV_NONE, istype);
     }
     else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "var"))
     {
@@ -3852,7 +4230,14 @@ static bool parser_global_statement(parser_t *parser)
                 parseerror(parser, "expected variable declaration after 'var'");
                 return false;
             }
-            return parse_variable(parser, NULL, true, false, NULL);
+            if (parser->tok == TOKEN_KEYWORD && !strcmp(parser_tokval(parser), "const")) {
+                (void)!parsewarning(parser, WARN_CONST_VAR, "ignoring `const` after 'var' qualifier");
+                if (!parser_next(parser)) {
+                    parseerror(parser, "expected variable declaration after 'const var'");
+                    return false;
+                }
+            }
+            return parse_variable(parser, NULL, true, CV_VAR, NULL);
         }
     }
     else if (parser->tok == TOKEN_KEYWORD)
@@ -3862,7 +4247,14 @@ static bool parser_global_statement(parser_t *parser)
                 parseerror(parser, "expected variable declaration after 'const'");
                 return false;
             }
-            return parse_variable(parser, NULL, true, true, NULL);
+            if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "var")) {
+                (void)!parsewarning(parser, WARN_CONST_VAR, "ignoring `var` after const qualifier");
+                if (!parser_next(parser)) {
+                    parseerror(parser, "expected variable declaration after 'const var'");
+                    return false;
+                }
+            }
+            return parse_variable(parser, NULL, true, CV_CONST, NULL);
         }
         else if (!strcmp(parser_tokval(parser), "typedef")) {
             if (!parser_next(parser)) {
@@ -3992,6 +4384,7 @@ bool parser_init()
     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);
     return true;
 }
 
@@ -4095,6 +4488,7 @@ void parser_cleanup()
         util_htdel(parser->variables[i]);
     vec_free(parser->variables);
     vec_free(parser->_blocklocals);
+    vec_free(parser->_locals);
 
     for (i = 0; i < vec_size(parser->_typedefs); ++i)
         ast_delete(parser->_typedefs[i]);
@@ -4104,6 +4498,11 @@ void parser_cleanup()
     vec_free(parser->typedefs);
     vec_free(parser->_blocktypedefs);
 
+    vec_free(parser->_block_ctx);
+
+    vec_free(parser->labels);
+    vec_free(parser->gotos);
+
     mem_d(parser);
 }
 
@@ -4123,21 +4522,21 @@ bool parser_finish(const char *output)
 
         for (i = 0; i < vec_size(parser->fields); ++i) {
             ast_value *field;
-            bool isconst;
+            bool hasvalue;
             if (!ast_istype(parser->fields[i], ast_value))
                 continue;
             field = (ast_value*)parser->fields[i];
-            isconst = field->isconst;
-            field->isconst = false;
+            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;
             }
-            if (isconst) {
+            if (hasvalue) {
                 ir_value *ifld;
                 ast_expression *subtype;
-                field->isconst = true;
+                field->hasvalue = true;
                 subtype = field->expression.next;
                 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
                 if (subtype->expression.vtype == TYPE_FIELD)
@@ -4152,7 +4551,7 @@ bool parser_finish(const char *output)
             if (!ast_istype(parser->globals[i], ast_value))
                 continue;
             asvalue = (ast_value*)(parser->globals[i]);
-            if (!asvalue->uses && !asvalue->isconst && asvalue->expression.vtype != TYPE_FUNCTION) {
+            if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
                 if (strcmp(asvalue->name, "end_sys_globals") &&
                     strcmp(asvalue->name, "end_sys_fields"))
                 {