X-Git-Url: https://git.xonotic.org/?p=xonotic%2Fgmqcc.git;a=blobdiff_plain;f=ast.c;h=f5ed565e93644b202798d2ff88c33ada85d57656;hp=71c4ae62b01423a45306dfa2c95f87beff6e114b;hb=b1425dfcf1afa18b81168ed57a4b790ddc0605b5;hpb=cfdf915b25352648748095685e00af917549639d

diff --git a/ast.c b/ast.c
index 71c4ae6..f5ed565 100644
--- a/ast.c
+++ b/ast.c
@@ -35,10 +35,19 @@
     ast_node_init((ast_node*)self, ctx, TYPE_##T);                  \
     ( (ast_node*)self )->node.destroy = (ast_node_delete*)destroyfn
 
+/* error handling */
+static void asterror(lex_ctx ctx, const char *msg, ...)
+{
+    va_list ap;
+    va_start(ap, msg);
+    con_cvprintmsg((void*)&ctx, LVL_ERROR, "error", msg, ap);
+    va_end(ap);
+}
+
 /* It must not be possible to get here. */
 static GMQCC_NORETURN void _ast_node_destroy(ast_node *self)
 {
-    fprintf(stderr, "ast node missing destroy()\n");
+    con_err("ast node missing destroy()\n");
     abort();
 }
 
@@ -55,12 +64,13 @@ static void ast_node_init(ast_node *self, lex_ctx ctx, int nodetype)
 static void ast_expression_init(ast_expression *self,
                                 ast_expression_codegen *codegen)
 {
-    self->expression.codegen = codegen;
-    self->expression.vtype   = TYPE_VOID;
-    self->expression.next    = NULL;
-    self->expression.outl    = NULL;
-    self->expression.outr    = NULL;
-    MEM_VECTOR_INIT(&self->expression, params);
+    self->expression.codegen  = codegen;
+    self->expression.vtype    = TYPE_VOID;
+    self->expression.next     = NULL;
+    self->expression.outl     = NULL;
+    self->expression.outr     = NULL;
+    self->expression.variadic = false;
+    self->expression.params   = NULL;
 }
 
 static void ast_expression_delete(ast_expression *self)
@@ -68,10 +78,10 @@ static void ast_expression_delete(ast_expression *self)
     size_t i;
     if (self->expression.next)
         ast_delete(self->expression.next);
-    for (i = 0; i < self->expression.params_count; ++i) {
+    for (i = 0; i < vec_size(self->expression.params); ++i) {
         ast_delete(self->expression.params[i]);
     }
-    MEM_VECTOR_CLEAR(&self->expression, params);
+    vec_free(self->expression.params);
 }
 
 static void ast_expression_delete_full(ast_expression *self)
@@ -80,11 +90,11 @@ static void ast_expression_delete_full(ast_expression *self)
     mem_d(self);
 }
 
-MEM_VEC_FUNCTIONS(ast_expression_common, ast_value*, params)
-
-static ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex);
-static ast_value* ast_value_copy(const ast_value *self)
+ast_value* ast_value_copy(const ast_value *self)
 {
+    size_t i;
+    const ast_expression_common *fromex;
+    ast_expression_common *selfex;
     ast_value *cp = ast_value_new(self->expression.node.context, self->name, self->expression.vtype);
     if (self->expression.next) {
         cp->expression.next = ast_type_copy(self->expression.node.context, self->expression.next);
@@ -93,19 +103,54 @@ static ast_value* ast_value_copy(const ast_value *self)
             return NULL;
         }
     }
+    fromex   = &self->expression;
+    selfex = &cp->expression;
+    selfex->variadic = fromex->variadic;
+    for (i = 0; i < vec_size(fromex->params); ++i) {
+        ast_value *v = ast_value_copy(fromex->params[i]);
+        if (!v) {
+            ast_value_delete(cp);
+            return NULL;
+        }
+        vec_push(selfex->params, v);
+    }
     return cp;
 }
 
+bool ast_type_adopt_impl(ast_expression *self, const ast_expression *other)
+{
+    size_t i;
+    const ast_expression_common *fromex;
+    ast_expression_common *selfex;
+    self->expression.vtype = other->expression.vtype;
+    if (other->expression.next) {
+        self->expression.next = (ast_expression*)ast_type_copy(ast_ctx(self), other->expression.next);
+        if (!self->expression.next)
+            return false;
+    }
+    fromex   = &other->expression;
+    selfex = &self->expression;
+    selfex->variadic = fromex->variadic;
+    for (i = 0; i < vec_size(fromex->params); ++i) {
+        ast_value *v = ast_value_copy(fromex->params[i]);
+        if (!v)
+            return false;
+        vec_push(selfex->params, v);
+    }
+    return true;
+}
+
 static ast_expression* ast_shallow_type(lex_ctx ctx, int vtype)
 {
     ast_instantiate(ast_expression, ctx, ast_expression_delete_full);
+    ast_expression_init(self, NULL);
     self->expression.codegen = NULL;
     self->expression.next    = NULL;
     self->expression.vtype   = vtype;
     return self;
 }
 
-static ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex)
+ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex)
 {
     size_t i;
     const ast_expression_common *fromex;
@@ -116,6 +161,7 @@ static ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex)
     else
     {
         ast_instantiate(ast_expression, ctx, ast_expression_delete_full);
+        ast_expression_init(self, NULL);
 
         fromex   = &ex->expression;
         selfex = &self->expression;
@@ -135,18 +181,135 @@ static ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex)
         else
             selfex->next = NULL;
 
-        for (i = 0; i < fromex->params_count; ++i) {
+        selfex->variadic = fromex->variadic;
+        for (i = 0; i < vec_size(fromex->params); ++i) {
             ast_value *v = ast_value_copy(fromex->params[i]);
-            if (!v || !ast_expression_common_params_add(selfex, v)) {
+            if (!v) {
                 ast_expression_delete_full(self);
                 return NULL;
             }
+            vec_push(selfex->params, v);
         }
 
         return self;
     }
 }
 
+bool ast_compare_type(ast_expression *a, ast_expression *b)
+{
+    if (a->expression.vtype != b->expression.vtype)
+        return false;
+    if (!a->expression.next != !b->expression.next)
+        return false;
+    if (vec_size(a->expression.params) != vec_size(b->expression.params))
+        return false;
+    if (a->expression.variadic != b->expression.variadic)
+        return false;
+    if (vec_size(a->expression.params)) {
+        size_t i;
+        for (i = 0; i < vec_size(a->expression.params); ++i) {
+            if (!ast_compare_type((ast_expression*)a->expression.params[i],
+                                  (ast_expression*)b->expression.params[i]))
+                return false;
+        }
+    }
+    if (a->expression.next)
+        return ast_compare_type(a->expression.next, b->expression.next);
+    return true;
+}
+
+static size_t ast_type_to_string_impl(ast_expression *e, char *buf, size_t bufsize, size_t pos)
+{
+    const char *typestr;
+    size_t typelen;
+    size_t i;
+
+    if (!e) {
+        if (pos + 6 >= bufsize)
+            goto full;
+        strcpy(buf + pos, "(null)");
+        return pos + 6;
+    }
+
+    if (pos + 1 >= bufsize)
+        goto full;
+
+    switch (e->expression.vtype) {
+        case TYPE_VARIANT:
+            strcpy(buf + pos, "(variant)");
+            return pos + 9;
+
+        case TYPE_FIELD:
+            buf[pos++] = '.';
+            return ast_type_to_string_impl(e->expression.next, buf, bufsize, pos);
+
+        case TYPE_POINTER:
+            if (pos + 3 >= bufsize)
+                goto full;
+            buf[pos++] = '*';
+            buf[pos++] = '(';
+            pos = ast_type_to_string_impl(e->expression.next, buf, bufsize, pos);
+            if (pos + 1 >= bufsize)
+                goto full;
+            buf[pos++] = ')';
+            return pos;
+
+        case TYPE_FUNCTION:
+            pos = ast_type_to_string_impl(e->expression.next, buf, bufsize, pos);
+            if (pos + 2 >= bufsize)
+                goto full;
+            if (!vec_size(e->expression.params)) {
+                buf[pos++] = '(';
+                buf[pos++] = ')';
+                return pos;
+            }
+            buf[pos++] = '(';
+            pos = ast_type_to_string_impl((ast_expression*)(e->expression.params[0]), buf, bufsize, pos);
+            for (i = 1; i < vec_size(e->expression.params); ++i) {
+                if (pos + 2 >= bufsize)
+                    goto full;
+                buf[pos++] = ',';
+                buf[pos++] = ' ';
+                pos = ast_type_to_string_impl((ast_expression*)(e->expression.params[i]), buf, bufsize, pos);
+            }
+            if (pos + 1 >= bufsize)
+                goto full;
+            buf[pos++] = ')';
+            return pos;
+
+        case TYPE_ARRAY:
+            pos = ast_type_to_string_impl(e->expression.next, buf, bufsize, pos);
+            if (pos + 1 >= bufsize)
+                goto full;
+            buf[pos++] = '[';
+            pos += snprintf(buf + pos, bufsize - pos - 1, "%i", (int)e->expression.count);
+            if (pos + 1 >= bufsize)
+                goto full;
+            buf[pos++] = ']';
+            return pos;
+
+        default:
+            typestr = type_name[e->expression.vtype];
+            typelen = strlen(typestr);
+            if (pos + typelen >= bufsize)
+                goto full;
+            strcpy(buf + pos, typestr);
+            return pos + typelen;
+    }
+
+full:
+    buf[bufsize-3] = '.';
+    buf[bufsize-2] = '.';
+    buf[bufsize-1] = '.';
+    return bufsize;
+}
+
+void ast_type_to_string(ast_expression *e, char *buf, size_t bufsize)
+{
+    size_t pos = ast_type_to_string_impl(e, buf, bufsize-1, 0);
+    buf[pos] = 0;
+}
+
 ast_value* ast_value_new(lex_ctx ctx, const char *name, int t)
 {
     ast_instantiate(ast_value, ctx, ast_value_delete);
@@ -158,9 +321,15 @@ ast_value* ast_value_new(lex_ctx ctx, const char *name, int t)
     self->expression.vtype = t;
     self->expression.next  = NULL;
     self->isconst = false;
+    self->uses    = 0;
     memset(&self->constval, 0, sizeof(self->constval));
 
-    self->ir_v    = NULL;
+    self->ir_v           = NULL;
+    self->ir_values      = NULL;
+    self->ir_value_count = 0;
+
+    self->setter = NULL;
+    self->getter = NULL;
 
     return self;
 }
@@ -186,13 +355,15 @@ void ast_value_delete(ast_value* self)
             break;
         }
     }
+    if (self->ir_values)
+        mem_d(self->ir_values);
     ast_expression_delete((ast_expression*)self);
     mem_d(self);
 }
 
-bool GMQCC_WARN ast_value_params_add(ast_value *self, ast_value *p)
+void ast_value_params_add(ast_value *self, ast_value *p)
 {
-    return ast_expression_common_params_add(&self->expression, p);
+    vec_push(self->expression.params, p);
 }
 
 bool ast_value_set_name(ast_value *self, const char *name)
@@ -278,6 +449,11 @@ ast_unary* ast_unary_new(lex_ctx ctx, int op,
     self->op = op;
     self->operand = expr;
 
+    if (op >= INSTR_NOT_F && op <= INSTR_NOT_FNC) {
+        self->expression.vtype = TYPE_FLOAT;
+    } else
+        asterror(ctx, "cannot determine type of unary operation %s", asm_instr[op].m);
+
     return self;
 }
 
@@ -300,23 +476,25 @@ ast_return* ast_return_new(lex_ctx ctx, ast_expression *expr)
 
 void ast_return_delete(ast_return *self)
 {
-    ast_unref(self->operand);
+    if (self->operand)
+        ast_unref(self->operand);
     ast_expression_delete((ast_expression*)self);
     mem_d(self);
 }
 
 ast_entfield* ast_entfield_new(lex_ctx ctx, ast_expression *entity, ast_expression *field)
 {
-    const ast_expression *outtype;
-
-    ast_instantiate(ast_entfield, ctx, ast_entfield_delete);
-
     if (field->expression.vtype != TYPE_FIELD) {
-        mem_d(self);
+        asterror(ctx, "ast_entfield_new with expression not of type field");
         return NULL;
     }
+    return ast_entfield_new_force(ctx, entity, field, field->expression.next);
+}
+
+ast_entfield* ast_entfield_new_force(lex_ctx ctx, ast_expression *entity, ast_expression *field, const ast_expression *outtype)
+{
+    ast_instantiate(ast_entfield, ctx, ast_entfield_delete);
 
-    outtype = field->expression.next;
     if (!outtype) {
         mem_d(self);
         /* Error: field has no type... */
@@ -325,12 +503,14 @@ ast_entfield* ast_entfield_new(lex_ctx ctx, ast_expression *entity, ast_expressi
 
     ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_entfield_codegen);
 
-    self->expression.vtype = outtype->expression.vtype;
-    self->expression.next  = ast_type_copy(ctx, outtype->expression.next);
-
     self->entity = entity;
     self->field  = field;
 
+    if (!ast_type_adopt(self, outtype)) {
+        ast_entfield_delete(self);
+        return NULL;
+    }
+
     return self;
 }
 
@@ -352,12 +532,13 @@ ast_member* ast_member_new(lex_ctx ctx, ast_expression *owner, unsigned int fiel
 
     if (owner->expression.vtype != TYPE_VECTOR &&
         owner->expression.vtype != TYPE_FIELD) {
-        printf("ast_member on an invalid owner of type %i\n", (int)owner->expression.vtype);
+        asterror(ctx, "member-access on an invalid owner of type %s", type_name[owner->expression.vtype]);
         mem_d(self);
         return NULL;
     }
 
     ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_member_codegen);
+    self->expression.node.keep = true; /* keep */
 
     if (owner->expression.vtype == TYPE_VECTOR) {
         self->expression.vtype = TYPE_FLOAT;
@@ -375,7 +556,56 @@ ast_member* ast_member_new(lex_ctx ctx, ast_expression *owner, unsigned int fiel
 
 void ast_member_delete(ast_member *self)
 {
+    /* The owner is always an ast_value, which has .keep=true,
+     * also: ast_members are usually deleted after the owner, thus
+     * this will cause invalid access
     ast_unref(self->owner);
+     * once we allow (expression).x to access a vector-member, we need
+     * to change this: preferably by creating an alternate ast node for this
+     * purpose that is not garbage-collected.
+    */
+    ast_expression_delete((ast_expression*)self);
+    mem_d(self);
+}
+
+ast_array_index* ast_array_index_new(lex_ctx ctx, ast_expression *array, ast_expression *index)
+{
+    ast_expression *outtype;
+    ast_instantiate(ast_array_index, ctx, ast_array_index_delete);
+
+    outtype = array->expression.next;
+    if (!outtype) {
+        mem_d(self);
+        /* Error: field has no type... */
+        return NULL;
+    }
+
+    ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_array_index_codegen);
+
+    self->array = array;
+    self->index = index;
+
+    if (!ast_type_adopt(self, outtype)) {
+        ast_array_index_delete(self);
+        return NULL;
+    }
+    if (array->expression.vtype == TYPE_FIELD && outtype->expression.vtype == TYPE_ARRAY) {
+        if (self->expression.vtype != TYPE_ARRAY) {
+            asterror(ast_ctx(self), "array_index node on type");
+            ast_array_index_delete(self);
+            return NULL;
+        }
+        self->array = outtype;
+        self->expression.vtype = TYPE_FIELD;
+    }
+
+    return self;
+}
+
+void ast_array_index_delete(ast_array_index *self)
+{
+    ast_unref(self->array);
+    ast_unref(self->index);
     ast_expression_delete((ast_expression*)self);
     mem_d(self);
 }
@@ -470,26 +700,71 @@ void ast_loop_delete(ast_loop *self)
     mem_d(self);
 }
 
+ast_breakcont* ast_breakcont_new(lex_ctx ctx, bool iscont)
+{
+    ast_instantiate(ast_breakcont, ctx, ast_breakcont_delete);
+    ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_breakcont_codegen);
+
+    self->is_continue = iscont;
+
+    return self;
+}
+
+void ast_breakcont_delete(ast_breakcont *self)
+{
+    ast_expression_delete((ast_expression*)self);
+    mem_d(self);
+}
+
+ast_switch* ast_switch_new(lex_ctx ctx, ast_expression *op)
+{
+    ast_instantiate(ast_switch, ctx, ast_switch_delete);
+    ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_switch_codegen);
+
+    self->operand = op;
+    self->cases   = NULL;
+
+    return self;
+}
+
+void ast_switch_delete(ast_switch *self)
+{
+    size_t i;
+    ast_unref(self->operand);
+
+    for (i = 0; i < vec_size(self->cases); ++i) {
+        if (self->cases[i].value)
+            ast_unref(self->cases[i].value);
+        ast_unref(self->cases[i].code);
+    }
+    vec_free(self->cases);
+
+    ast_expression_delete((ast_expression*)self);
+    mem_d(self);
+}
+
 ast_call* ast_call_new(lex_ctx ctx,
                        ast_expression *funcexpr)
 {
     ast_instantiate(ast_call, ctx, ast_call_delete);
     ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_call_codegen);
 
-    MEM_VECTOR_INIT(self, params);
+    self->params = NULL;
+    self->func   = funcexpr;
 
-    self->func = funcexpr;
+    self->expression.vtype = funcexpr->expression.next->expression.vtype;
+    if (funcexpr->expression.next->expression.next)
+        self->expression.next = ast_type_copy(ctx, funcexpr->expression.next->expression.next);
 
     return self;
 }
-MEM_VEC_FUNCTIONS(ast_call, ast_expression*, params)
 
 void ast_call_delete(ast_call *self)
 {
     size_t i;
-    for (i = 0; i < self->params_count; ++i)
+    for (i = 0; i < vec_size(self->params); ++i)
         ast_unref(self->params[i]);
-    MEM_VECTOR_CLEAR(self, params);
+    vec_free(self->params);
 
     if (self->func)
         ast_unref(self->func);
@@ -498,6 +773,26 @@ void ast_call_delete(ast_call *self)
     mem_d(self);
 }
 
+bool ast_call_check_types(ast_call *self)
+{
+    size_t i;
+    bool   retval = true;
+    const  ast_expression *func = self->func;
+    size_t count = vec_size(self->params);
+    if (count > vec_size(func->expression.params))
+        count = vec_size(func->expression.params);
+
+    for (i = 0; i < count; ++i) {
+        if (!ast_compare_type(self->params[i], (ast_expression*)(func->expression.params[i]))) {
+            asterror(ast_ctx(self), "invalid type for parameter %u in function call",
+                     (unsigned int)(i+1));
+            /* we don't immediately return */
+            retval = false;
+        }
+    }
+    return retval;
+}
+
 ast_store* ast_store_new(lex_ctx ctx, int op,
                          ast_expression *dest, ast_expression *source)
 {
@@ -508,6 +803,17 @@ ast_store* ast_store_new(lex_ctx ctx, int op,
     self->dest = dest;
     self->source = source;
 
+    self->expression.vtype = dest->expression.vtype;
+    if (dest->expression.next) {
+        self->expression.next = ast_type_copy(ctx, dest);
+        if (!self->expression.next) {
+            ast_delete(self);
+            return NULL;
+        }
+    }
+    else
+        self->expression.next = NULL;
+
     return self;
 }
 
@@ -525,23 +831,31 @@ ast_block* ast_block_new(lex_ctx ctx)
     ast_expression_init((ast_expression*)self,
                         (ast_expression_codegen*)&ast_block_codegen);
 
-    MEM_VECTOR_INIT(self, locals);
-    MEM_VECTOR_INIT(self, exprs);
+    self->locals  = NULL;
+    self->exprs   = NULL;
+    self->collect = NULL;
 
     return self;
 }
-MEM_VEC_FUNCTIONS(ast_block, ast_value*, locals)
-MEM_VEC_FUNCTIONS(ast_block, ast_expression*, exprs)
+
+void ast_block_collect(ast_block *self, ast_expression *expr)
+{
+    vec_push(self->collect, expr);
+    expr->expression.node.keep = true;
+}
 
 void ast_block_delete(ast_block *self)
 {
     size_t i;
-    for (i = 0; i < self->exprs_count; ++i)
+    for (i = 0; i < vec_size(self->exprs); ++i)
         ast_unref(self->exprs[i]);
-    MEM_VECTOR_CLEAR(self, exprs);
-    for (i = 0; i < self->locals_count; ++i)
+    vec_free(self->exprs);
+    for (i = 0; i < vec_size(self->locals); ++i)
         ast_delete(self->locals[i]);
-    MEM_VECTOR_CLEAR(self, locals);
+    vec_free(self->locals);
+    for (i = 0; i < vec_size(self->collect); ++i)
+        ast_delete(self->collect[i]);
+    vec_free(self->collect);
     ast_expression_delete((ast_expression*)self);
     mem_d(self);
 }
@@ -556,6 +870,8 @@ bool ast_block_set_type(ast_block *self, ast_expression *from)
         if (!self->expression.next)
             return false;
     }
+    else
+        self->expression.next = NULL;
     return true;
 }
 
@@ -571,9 +887,9 @@ ast_function* ast_function_new(lex_ctx ctx, const char *name, ast_value *vtype)
         return NULL;
     }
 
-    self->vtype = vtype;
-    self->name = name ? util_strdup(name) : NULL;
-    MEM_VECTOR_INIT(self, blocks);
+    self->vtype  = vtype;
+    self->name   = name ? util_strdup(name) : NULL;
+    self->blocks = NULL;
 
     self->labelcount = 0;
     self->builtin = 0;
@@ -590,8 +906,6 @@ ast_function* ast_function_new(lex_ctx ctx, const char *name, ast_value *vtype)
     return self;
 }
 
-MEM_VEC_FUNCTIONS(ast_function, ast_block*, blocks)
-
 void ast_function_delete(ast_function *self)
 {
     size_t i;
@@ -606,43 +920,33 @@ void ast_function_delete(ast_function *self)
          */
         ast_unref(self->vtype);
     }
-    for (i = 0; i < self->blocks_count; ++i)
+    for (i = 0; i < vec_size(self->blocks); ++i)
         ast_delete(self->blocks[i]);
-    MEM_VECTOR_CLEAR(self, blocks);
+    vec_free(self->blocks);
     mem_d(self);
 }
 
-static void ast_util_hexitoa(char *buf, size_t size, unsigned int num)
+const char* ast_function_label(ast_function *self, const char *prefix)
 {
-    unsigned int base = 10;
-#define checknul() do { if (size == 1) { *buf = 0; return; } } while (0)
-#define addch(x) do { *buf++ = (x); --size; checknul(); } while (0)
-    if (size < 1)
-        return;
-    checknul();
-    if (!num)
-        addch('0');
-    else {
-        while (num)
-        {
-            int digit = num % base;
-            num /= base;
-            addch('0' + digit);
-        }
-    }
+    size_t id;
+    size_t len;
+    char  *from;
 
-    *buf = 0;
-#undef addch
-#undef checknul
-}
+    if (!opts_dump)
+        return NULL;
 
-const char* ast_function_label(ast_function *self, const char *prefix)
-{
-    size_t id = (self->labelcount++);
-    size_t len = strlen(prefix);
-    strncpy(self->labelbuf, prefix, sizeof(self->labelbuf));
-    ast_util_hexitoa(self->labelbuf + len, sizeof(self->labelbuf)-len, id);
-    return self->labelbuf;
+    id  = (self->labelcount++);
+    len = strlen(prefix);
+
+    from = self->labelbuf + sizeof(self->labelbuf)-1;
+    *from-- = 0;
+    do {
+        unsigned int digit = id % 10;
+        *from = digit + '0';
+        id /= 10;
+    } while (id);
+    memcpy(from - len, prefix, len);
+    return from - len;
 }
 
 /*********************************************************************/
@@ -662,21 +966,26 @@ bool ast_value_codegen(ast_value *self, ast_function *func, bool lvalue, ir_valu
      * on all the globals.
      */
     if (!self->ir_v) {
-        printf("ast_value used before generated (%s)\n", self->name);
+        char typename[1024];
+        ast_type_to_string((ast_expression*)self, typename, sizeof(typename));
+        asterror(ast_ctx(self), "ast_value used before generated %s %s", typename, self->name);
         return false;
     }
     *out = self->ir_v;
     return true;
 }
 
-bool ast_global_codegen(ast_value *self, ir_builder *ir)
+bool ast_global_codegen(ast_value *self, ir_builder *ir, bool isfield)
 {
     ir_value *v = NULL;
+
     if (self->isconst && self->expression.vtype == TYPE_FUNCTION)
     {
         ir_function *func = ir_builder_create_function(ir, self->name, self->expression.next->expression.vtype);
         if (!func)
             return false;
+        func->context = ast_ctx(self);
+        func->value->context = ast_ctx(self);
 
         self->constval.vfunc->ir_func = func;
         self->ir_v = func->value;
@@ -684,22 +993,130 @@ bool ast_global_codegen(ast_value *self, ir_builder *ir)
         return true;
     }
 
-    if (self->expression.vtype == TYPE_FIELD) {
-        v = ir_builder_create_field(ir, self->name, self->expression.next->expression.vtype);
-        if (!v)
-            return false;
+    if (isfield && self->expression.vtype == TYPE_FIELD) {
+        ast_expression *fieldtype = self->expression.next;
+
         if (self->isconst) {
-            printf("TODO: constant field pointers with value\n");
+            asterror(ast_ctx(self), "TODO: constant field pointers with value");
             goto error;
         }
-        self->ir_v = v;
+
+        if (fieldtype->expression.vtype == TYPE_ARRAY) {
+            size_t ai;
+            char   *name;
+            size_t  namelen;
+
+            ast_expression_common *elemtype;
+            int                    vtype;
+            ast_value             *array = (ast_value*)fieldtype;
+
+            if (!ast_istype(fieldtype, ast_value)) {
+                asterror(ast_ctx(self), "internal error: ast_value required");
+                return false;
+            }
+
+            /* we are lame now - considering the way QC works we won't tolerate arrays > 1024 elements */
+            if (!array->expression.count || array->expression.count > opts_max_array_size)
+                asterror(ast_ctx(self), "Invalid array of size %lu", (unsigned long)array->expression.count);
+
+            elemtype = &array->expression.next->expression;
+            vtype = elemtype->vtype;
+
+            v = ir_builder_create_field(ir, self->name, vtype);
+            if (!v) {
+                asterror(ast_ctx(self), "ir_builder_create_global failed");
+                return false;
+            }
+            if (vtype == TYPE_FIELD)
+                v->fieldtype = elemtype->next->expression.vtype;
+            v->context = ast_ctx(self);
+            array->ir_v = self->ir_v = v;
+
+            namelen = strlen(self->name);
+            name    = (char*)mem_a(namelen + 16);
+            strcpy(name, self->name);
+
+            array->ir_values = (ir_value**)mem_a(sizeof(array->ir_values[0]) * array->expression.count);
+            array->ir_values[0] = v;
+            for (ai = 1; ai < array->expression.count; ++ai) {
+                snprintf(name + namelen, 16, "[%u]", (unsigned int)ai);
+                array->ir_values[ai] = ir_builder_create_field(ir, name, vtype);
+                if (!array->ir_values[ai]) {
+                    mem_d(name);
+                    asterror(ast_ctx(self), "ir_builder_create_global failed");
+                    return false;
+                }
+                if (vtype == TYPE_FIELD)
+                    array->ir_values[ai]->fieldtype = elemtype->next->expression.vtype;
+                array->ir_values[ai]->context = ast_ctx(self);
+            }
+            mem_d(name);
+        }
+        else
+        {
+            v = ir_builder_create_field(ir, self->name, self->expression.next->expression.vtype);
+            if (!v)
+                return false;
+            v->context = ast_ctx(self);
+            self->ir_v = v;
+        }
         return true;
     }
 
-    v = ir_builder_create_global(ir, self->name, self->expression.vtype);
-    if (!v) {
-        printf("ir_builder_create_global failed\n");
-        return false;
+    if (self->expression.vtype == TYPE_ARRAY) {
+        size_t ai;
+        char   *name;
+        size_t  namelen;
+
+        ast_expression_common *elemtype = &self->expression.next->expression;
+        int vtype = elemtype->vtype;
+
+        /* same as with field arrays */
+        if (!self->expression.count || self->expression.count > opts_max_array_size)
+            asterror(ast_ctx(self), "Invalid array of size %lu", (unsigned long)self->expression.count);
+
+        v = ir_builder_create_global(ir, self->name, vtype);
+        if (!v) {
+            asterror(ast_ctx(self), "ir_builder_create_global failed");
+            return false;
+        }
+        if (vtype == TYPE_FIELD)
+            v->fieldtype = elemtype->next->expression.vtype;
+        v->context = ast_ctx(self);
+
+        namelen = strlen(self->name);
+        name    = (char*)mem_a(namelen + 16);
+        strcpy(name, self->name);
+
+        self->ir_values = (ir_value**)mem_a(sizeof(self->ir_values[0]) * self->expression.count);
+        self->ir_values[0] = v;
+        for (ai = 1; ai < self->expression.count; ++ai) {
+            snprintf(name + namelen, 16, "[%u]", (unsigned int)ai);
+            self->ir_values[ai] = ir_builder_create_global(ir, name, vtype);
+            if (!self->ir_values[ai]) {
+                mem_d(name);
+                asterror(ast_ctx(self), "ir_builder_create_global failed");
+                return false;
+            }
+            if (vtype == TYPE_FIELD)
+                self->ir_values[ai]->fieldtype = elemtype->next->expression.vtype;
+            self->ir_values[ai]->context = ast_ctx(self);
+        }
+        mem_d(name);
+    }
+    else
+    {
+        /* Arrays don't do this since there's no "array" value which spans across the
+         * whole thing.
+         */
+        v = ir_builder_create_global(ir, self->name, self->expression.vtype);
+        if (!v) {
+            asterror(ast_ctx(self), "ir_builder_create_global failed");
+            return false;
+        }
+        if (self->expression.vtype == TYPE_FIELD)
+            v->fieldtype = self->expression.next->expression.vtype;
+        v->context = ast_ctx(self);
     }
 
     if (self->isconst) {
@@ -717,14 +1134,17 @@ bool ast_global_codegen(ast_value *self, ir_builder *ir)
                 if (!ir_value_set_string(v, self->constval.vstring))
                     goto error;
                 break;
+            case TYPE_ARRAY:
+                asterror(ast_ctx(self), "TODO: global constant array");
+                break;
             case TYPE_FUNCTION:
-                printf("global of type function not properly generated\n");
+                asterror(ast_ctx(self), "global of type function not properly generated");
                 goto error;
                 /* Cannot generate an IR value for a function,
                  * need a pointer pointing to a function rather.
                  */
             default:
-                printf("TODO: global constant type %i\n", self->expression.vtype);
+                asterror(ast_ctx(self), "TODO: global constant type %i", self->expression.vtype);
                 break;
         }
     }
@@ -749,9 +1169,65 @@ bool ast_local_codegen(ast_value *self, ir_function *func, bool param)
         return false;
     }
 
-    v = ir_function_create_local(func, self->name, self->expression.vtype, param);
-    if (!v)
-        return false;
+    if (self->expression.vtype == TYPE_ARRAY) {
+        size_t ai;
+        char   *name;
+        size_t  namelen;
+
+        ast_expression_common *elemtype = &self->expression.next->expression;
+        int vtype = elemtype->vtype;
+
+        if (param) {
+            asterror(ast_ctx(self), "array-parameters are not supported");
+            return false;
+        }
+
+        /* we are lame now - considering the way QC works we won't tolerate arrays > 1024 elements */
+        if (!self->expression.count || self->expression.count > opts_max_array_size) {
+            asterror(ast_ctx(self), "Invalid array of size %lu", (unsigned long)self->expression.count);
+        }
+
+        self->ir_values = (ir_value**)mem_a(sizeof(self->ir_values[0]) * self->expression.count);
+        if (!self->ir_values) {
+            asterror(ast_ctx(self), "failed to allocate array values");
+            return false;
+        }
+
+        v = ir_function_create_local(func, self->name, vtype, param);
+        if (!v) {
+            asterror(ast_ctx(self), "ir_function_create_local failed");
+            return false;
+        }
+        if (vtype == TYPE_FIELD)
+            v->fieldtype = elemtype->next->expression.vtype;
+        v->context = ast_ctx(self);
+
+        namelen = strlen(self->name);
+        name    = (char*)mem_a(namelen + 16);
+        strcpy(name, self->name);
+
+        self->ir_values[0] = v;
+        for (ai = 1; ai < self->expression.count; ++ai) {
+            snprintf(name + namelen, 16, "[%u]", (unsigned int)ai);
+            self->ir_values[ai] = ir_function_create_local(func, name, vtype, param);
+            if (!self->ir_values[ai]) {
+                asterror(ast_ctx(self), "ir_builder_create_global failed");
+                return false;
+            }
+            if (vtype == TYPE_FIELD)
+                self->ir_values[ai]->fieldtype = elemtype->next->expression.vtype;
+            self->ir_values[ai]->context = ast_ctx(self);
+        }
+    }
+    else
+    {
+        v = ir_function_create_local(func, self->name, self->expression.vtype, param);
+        if (!v)
+            return false;
+        if (self->expression.vtype == TYPE_FIELD)
+            v->fieldtype = self->expression.next->expression.vtype;
+        v->context = ast_ctx(self);
+    }
 
     /* A constant local... hmmm...
      * I suppose the IR will have to deal with this
@@ -772,13 +1248,26 @@ bool ast_local_codegen(ast_value *self, ir_function *func, bool param)
                     goto error;
                 break;
             default:
-                printf("TODO: global constant type %i\n", self->expression.vtype);
+                asterror(ast_ctx(self), "TODO: global constant type %i", self->expression.vtype);
                 break;
         }
     }
 
     /* link us to the ir_value */
     self->ir_v = v;
+
+    if (self->setter) {
+        if (!ast_global_codegen(self->setter, func->owner, false) ||
+            !ast_function_codegen(self->setter->constval.vfunc, func->owner) ||
+            !ir_function_finalize(self->setter->constval.vfunc->ir_func))
+            return false;
+    }
+    if (self->getter) {
+        if (!ast_global_codegen(self->getter, func->owner, false) ||
+            !ast_function_codegen(self->getter->constval.vfunc, func->owner) ||
+            !ir_function_finalize(self->getter->constval.vfunc->ir_func))
+            return false;
+    }
     return true;
 
 error: /* clean up */
@@ -795,16 +1284,15 @@ bool ast_function_codegen(ast_function *self, ir_builder *ir)
 
     irf = self->ir_func;
     if (!irf) {
-        printf("ast_function's related ast_value was not generated yet\n");
+        asterror(ast_ctx(self), "ast_function's related ast_value was not generated yet");
         return false;
     }
 
     /* fill the parameter list */
     ec = &self->vtype->expression;
-    for (i = 0; i < ec->params_count; ++i)
+    for (i = 0; i < vec_size(ec->params); ++i)
     {
-        if (!ir_function_params_add(irf, ec->params[i]->expression.vtype))
-            return false;
+        vec_push(irf->params, ec->params[i]->expression.vtype);
         if (!self->builtin) {
             if (!ast_local_codegen(ec->params[i], self->ir_func, true))
                 return false;
@@ -816,11 +1304,18 @@ bool ast_function_codegen(ast_function *self, ir_builder *ir)
         return true;
     }
 
+    if (!vec_size(self->blocks)) {
+        asterror(ast_ctx(self), "function `%s` has no body", self->name);
+        return false;
+    }
+
     self->curblock = ir_function_create_block(irf, "entry");
-    if (!self->curblock)
+    if (!self->curblock) {
+        asterror(ast_ctx(self), "failed to allocate entry block for `%s`", self->name);
         return false;
+    }
 
-    for (i = 0; i < self->blocks_count; ++i) {
+    for (i = 0; i < vec_size(self->blocks); ++i) {
         ast_expression_codegen *gen = self->blocks[i]->expression.codegen;
         if (!(*gen)((ast_expression*)self->blocks[i], self, false, &dummy))
             return false;
@@ -829,6 +1324,9 @@ bool ast_function_codegen(ast_function *self, ir_builder *ir)
     /* TODO: check return types */
     if (!self->curblock->is_return)
     {
+        return ir_block_create_return(self->curblock, NULL);
+        /* From now on the parser has to handle this situation */
+#if 0
         if (!self->vtype->expression.next ||
             self->vtype->expression.next->expression.vtype == TYPE_VOID)
         {
@@ -837,8 +1335,10 @@ bool ast_function_codegen(ast_function *self, ir_builder *ir)
         else
         {
             /* error("missing return"); */
+            asterror(ast_ctx(self), "function `%s` missing return value", self->name);
             return false;
         }
+#endif
     }
     return true;
 }
@@ -857,7 +1357,11 @@ bool ast_block_codegen(ast_block *self, ast_function *func, bool lvalue, ir_valu
      * Note: an ast-representation using the comma-operator
      * of the form: (a, b, c) = x should not assign to c...
      */
-    (void)lvalue;
+    if (lvalue) {
+        asterror(ast_ctx(self), "not an l-value (code-block)");
+        return false;
+    }
+
     if (self->expression.outr) {
         *out = self->expression.outr;
         return true;
@@ -872,15 +1376,22 @@ bool ast_block_codegen(ast_block *self, ast_function *func, bool lvalue, ir_valu
     *out = NULL;
 
     /* generate locals */
-    for (i = 0; i < self->locals_count; ++i)
+    for (i = 0; i < vec_size(self->locals); ++i)
     {
-        if (!ast_local_codegen(self->locals[i], func->ir_func, false))
+        if (!ast_local_codegen(self->locals[i], func->ir_func, false)) {
+            if (opts_debug)
+                asterror(ast_ctx(self), "failed to generate local `%s`", self->locals[i]->name);
             return false;
+        }
     }
 
-    for (i = 0; i < self->exprs_count; ++i)
+    for (i = 0; i < vec_size(self->exprs); ++i)
     {
         ast_expression_codegen *gen = self->exprs[i]->expression.codegen;
+        if (func->curblock->final) {
+            asterror(ast_ctx(self->exprs[i]), "unreachable statement");
+            return false;
+        }
         if (!(*gen)(self->exprs[i], func, false, out))
             return false;
     }
@@ -895,6 +1406,10 @@ bool ast_store_codegen(ast_store *self, ast_function *func, bool lvalue, ir_valu
     ast_expression_codegen *cgen;
     ir_value *left, *right;
 
+    ast_value       *arr;
+    ast_value       *idx;
+    ast_array_index *ai = NULL;
+
     if (lvalue && self->expression.outl) {
         *out = self->expression.outl;
         return true;
@@ -905,20 +1420,70 @@ bool ast_store_codegen(ast_store *self, ast_function *func, bool lvalue, ir_valu
         return true;
     }
 
-    cgen = self->dest->expression.codegen;
-    /* lvalue! */
-    if (!(*cgen)((ast_expression*)(self->dest), func, true, &left))
-        return false;
-    self->expression.outl = left;
+    if (ast_istype(self->dest, ast_array_index))
+    {
 
-    cgen = self->source->expression.codegen;
-    /* rvalue! */
-    if (!(*cgen)((ast_expression*)(self->source), func, false, &right))
-        return false;
+        ai = (ast_array_index*)self->dest;
+        idx = (ast_value*)ai->index;
 
-    if (!ir_block_create_store_op(func->curblock, self->op, left, right))
-        return false;
-    self->expression.outr = right;
+        if (ast_istype(ai->index, ast_value) && idx->isconst)
+            ai = NULL;
+    }
+
+    if (ai) {
+        /* we need to call the setter */
+        ir_value  *iridx, *funval;
+        ir_instr  *call;
+
+        if (lvalue) {
+            asterror(ast_ctx(self), "array-subscript assignment cannot produce lvalues");
+            return false;
+        }
+
+        arr = (ast_value*)ai->array;
+        if (!ast_istype(ai->array, ast_value) || !arr->setter) {
+            asterror(ast_ctx(self), "value has no setter (%s)", arr->name);
+            return false;
+        }
+
+        cgen = idx->expression.codegen;
+        if (!(*cgen)((ast_expression*)(idx), func, false, &iridx))
+            return false;
+
+        cgen = arr->setter->expression.codegen;
+        if (!(*cgen)((ast_expression*)(arr->setter), func, true, &funval))
+            return false;
+
+        cgen = self->source->expression.codegen;
+        if (!(*cgen)((ast_expression*)(self->source), func, false, &right))
+            return false;
+
+        call = ir_block_create_call(func->curblock, ast_function_label(func, "store"), funval);
+        if (!call)
+            return false;
+        ir_call_param(call, iridx);
+        ir_call_param(call, right);
+        self->expression.outr = right;
+    }
+    else
+    {
+        /* regular code */
+
+        cgen = self->dest->expression.codegen;
+        /* lvalue! */
+        if (!(*cgen)((ast_expression*)(self->dest), func, true, &left))
+            return false;
+        self->expression.outl = left;
+
+        cgen = self->source->expression.codegen;
+        /* rvalue! */
+        if (!(*cgen)((ast_expression*)(self->source), func, false, &right))
+            return false;
+
+        if (!ir_block_create_store_op(func->curblock, self->op, left, right))
+            return false;
+        self->expression.outr = right;
+    }
 
     /* Theoretically, an assinment returns its left side as an
      * lvalue, if we don't need an lvalue though, we return
@@ -937,22 +1502,71 @@ bool ast_binary_codegen(ast_binary *self, ast_function *func, bool lvalue, ir_va
     ast_expression_codegen *cgen;
     ir_value *left, *right;
 
-    /* In the context of a binary operation, we can disregard
-     * the lvalue flag.
-     */
-    (void)lvalue;
+    /* A binary operation cannot yield an l-value */
+    if (lvalue) {
+        asterror(ast_ctx(self), "not an l-value (binop)");
+        return false;
+    }
+
     if (self->expression.outr) {
         *out = self->expression.outr;
         return true;
     }
 
+    if (OPTS_FLAG(SHORT_LOGIC) &&
+        (self->op == INSTR_AND || self->op == INSTR_OR))
+    {
+        /* short circuit evaluation */
+        ir_block *other, *merge;
+        ir_block *from_left, *from_right;
+        ir_instr *phi;
+        size_t    merge_id;
+
+        merge_id = vec_size(func->blocks);
+        merge = ir_function_create_block(func->ir_func, ast_function_label(func, "sce_merge"));
+
+        cgen = self->left->expression.codegen;
+        if (!(*cgen)((ast_expression*)(self->left), func, false, &left))
+            return false;
+
+        from_left = func->curblock;
+        other = ir_function_create_block(func->ir_func, ast_function_label(func, "sce_other"));
+        if (self->op == INSTR_AND) {
+            if (!ir_block_create_if(func->curblock, left, other, merge))
+                return false;
+        } else {
+            if (!ir_block_create_if(func->curblock, left, merge, other))
+                return false;
+        }
+        /* use the unlikely flag */
+        vec_last(func->curblock->instr)->likely = false;
+
+        func->curblock = other;
+        cgen = self->right->expression.codegen;
+        if (!(*cgen)((ast_expression*)(self->right), func, false, &right))
+            return false;
+        from_right = func->curblock;
+
+        if (!ir_block_create_jump(func->curblock, merge))
+            return false;
+
+        vec_remove(func->ir_func->blocks, merge_id, 1);
+        vec_push(func->ir_func->blocks, merge);
+
+        func->curblock = merge;
+        phi = ir_block_create_phi(func->curblock, ast_function_label(func, "sce_value"), TYPE_FLOAT);
+        ir_phi_add(phi, from_left, left);
+        ir_phi_add(phi, from_right, right);
+        *out = ir_phi_value(phi);
+        self->expression.outr = *out;
+        return true;
+    }
+
     cgen = self->left->expression.codegen;
-    /* lvalue! */
     if (!(*cgen)((ast_expression*)(self->left), func, false, &left))
         return false;
 
     cgen = self->right->expression.codegen;
-    /* rvalue! */
     if (!(*cgen)((ast_expression*)(self->right), func, false, &right))
         return false;
 
@@ -983,7 +1597,7 @@ bool ast_binstore_codegen(ast_binstore *self, ast_function *func, bool lvalue, i
     /* for a binstore we need both an lvalue and an rvalue for the left side */
     /* rvalue of destination! */
     cgen = self->dest->expression.codegen;
-    if (!(*cgen)((ast_expression*)(self->dest), func, true, &leftr))
+    if (!(*cgen)((ast_expression*)(self->dest), func, false, &leftr))
         return false;
 
     /* source as rvalue only */
@@ -1024,10 +1638,12 @@ bool ast_unary_codegen(ast_unary *self, ast_function *func, bool lvalue, ir_valu
     ast_expression_codegen *cgen;
     ir_value *operand;
 
-    /* In the context of a unary operation, we can disregard
-     * the lvalue flag.
-     */
-    (void)lvalue;
+    /* An unary operation cannot yield an l-value */
+    if (lvalue) {
+        asterror(ast_ctx(self), "not an l-value (binop)");
+        return false;
+    }
+
     if (self->expression.outr) {
         *out = self->expression.outr;
         return true;
@@ -1052,23 +1668,32 @@ bool ast_return_codegen(ast_return *self, ast_function *func, bool lvalue, ir_va
     ast_expression_codegen *cgen;
     ir_value *operand;
 
-    /* In the context of a return operation, we can disregard
-     * the lvalue flag.
+    /* In the context of a return operation, we don't actually return
+     * anything...
      */
-    (void)lvalue;
+    if (lvalue) {
+        asterror(ast_ctx(self), "return-expression is not an l-value");
+        return false;
+    }
+
     if (self->expression.outr) {
-        printf("internal error: ast_return cannot be reused, it bears no result!\n");
+        asterror(ast_ctx(self), "internal error: ast_return cannot be reused, it bears no result!");
         return false;
     }
     self->expression.outr = (ir_value*)1;
 
-    cgen = self->operand->expression.codegen;
-    /* lvalue! */
-    if (!(*cgen)((ast_expression*)(self->operand), func, false, &operand))
-        return false;
+    if (self->operand) {
+        cgen = self->operand->expression.codegen;
+        /* lvalue! */
+        if (!(*cgen)((ast_expression*)(self->operand), func, false, &operand))
+            return false;
 
-    if (!ir_block_create_return(func->curblock, operand))
-        return false;
+        if (!ir_block_create_return(func->curblock, operand))
+            return false;
+    } else {
+        if (!ir_block_create_return(func->curblock, NULL))
+            return false;
+    }
 
     return true;
 }
@@ -1109,8 +1734,12 @@ bool ast_entfield_codegen(ast_entfield *self, ast_function *func, bool lvalue, i
         *out = ir_block_create_load_from_ent(func->curblock, ast_function_label(func, "efv"),
                                              ent, field, self->expression.vtype);
     }
-    if (!*out)
+    if (!*out) {
+        asterror(ast_ctx(self), "failed to create %s instruction (output type %s)",
+                 (lvalue ? "ADDRESS" : "FIELD"),
+                 type_name[self->expression.vtype]);
         return false;
+    }
 
     if (lvalue)
         self->expression.outl = *out;
@@ -1149,6 +1778,76 @@ bool ast_member_codegen(ast_member *self, ast_function *func, bool lvalue, ir_va
     return (*out != NULL);
 }
 
+bool ast_array_index_codegen(ast_array_index *self, ast_function *func, bool lvalue, ir_value **out)
+{
+    ast_value *arr;
+    ast_value *idx;
+
+    if (!lvalue && self->expression.outr) {
+        *out = self->expression.outr;
+    }
+    if (lvalue && self->expression.outl) {
+        *out = self->expression.outl;
+    }
+
+    if (!ast_istype(self->array, ast_value)) {
+        asterror(ast_ctx(self), "array indexing this way is not supported");
+        /* note this would actually be pointer indexing because the left side is
+         * not an actual array but (hopefully) an indexable expression.
+         * Once we get integer arithmetic, and GADDRESS/GSTORE/GLOAD instruction
+         * support this path will be filled.
+         */
+        return false;
+    }
+
+    arr = (ast_value*)self->array;
+    idx = (ast_value*)self->index;
+
+    if (!ast_istype(self->index, ast_value) || !idx->isconst) {
+        /* Time to use accessor functions */
+        ast_expression_codegen *cgen;
+        ir_value               *iridx, *funval;
+        ir_instr               *call;
+
+        if (lvalue) {
+            asterror(ast_ctx(self), "(.2) array indexing here needs a compile-time constant");
+            return false;
+        }
+
+        if (!arr->getter) {
+            asterror(ast_ctx(self), "value has no getter, don't know how to index it");
+            return false;
+        }
+
+        cgen = self->index->expression.codegen;
+        if (!(*cgen)((ast_expression*)(self->index), func, true, &iridx))
+            return false;
+
+        cgen = arr->getter->expression.codegen;
+        if (!(*cgen)((ast_expression*)(arr->getter), func, true, &funval))
+            return false;
+
+        call = ir_block_create_call(func->curblock, ast_function_label(func, "fetch"), funval);
+        if (!call)
+            return false;
+        ir_call_param(call, iridx);
+
+        *out = ir_call_value(call);
+        self->expression.outr = *out;
+        return true;
+    }
+
+    if (idx->expression.vtype == TYPE_FLOAT)
+        *out = arr->ir_values[(int)idx->constval.vfloat];
+    else if (idx->expression.vtype == TYPE_INTEGER)
+        *out = arr->ir_values[idx->constval.vint];
+    else {
+        asterror(ast_ctx(self), "array indexing here needs an integer constant");
+        return false;
+    }
+    return true;
+}
+
 bool ast_ifthen_codegen(ast_ifthen *self, ast_function *func, bool lvalue, ir_value **out)
 {
     ast_expression_codegen *cgen;
@@ -1159,6 +1858,8 @@ bool ast_ifthen_codegen(ast_ifthen *self, ast_function *func, bool lvalue, ir_va
     ir_block *cond = func->curblock;
     ir_block *ontrue;
     ir_block *onfalse;
+    ir_block *ontrue_endblock = NULL;
+    ir_block *onfalse_endblock = NULL;
     ir_block *merge;
 
     /* We don't output any value, thus also don't care about r/lvalue */
@@ -1166,7 +1867,7 @@ bool ast_ifthen_codegen(ast_ifthen *self, ast_function *func, bool lvalue, ir_va
     (void)lvalue;
 
     if (self->expression.outr) {
-        printf("internal error: ast_ifthen cannot be reused, it bears no result!\n");
+        asterror(ast_ctx(self), "internal error: ast_ifthen cannot be reused, it bears no result!");
         return false;
     }
     self->expression.outr = (ir_value*)1;
@@ -1192,6 +1893,9 @@ bool ast_ifthen_codegen(ast_ifthen *self, ast_function *func, bool lvalue, ir_va
         cgen = self->on_true->expression.codegen;
         if (!(*cgen)((ast_expression*)(self->on_true), func, false, &dummy))
             return false;
+
+        /* we now need to work from the current endpoint */
+        ontrue_endblock = func->curblock;
     } else
         ontrue = NULL;
 
@@ -1209,6 +1913,9 @@ bool ast_ifthen_codegen(ast_ifthen *self, ast_function *func, bool lvalue, ir_va
         cgen = self->on_false->expression.codegen;
         if (!(*cgen)((ast_expression*)(self->on_false), func, false, &dummy))
             return false;
+
+        /* we now need to work from the current endpoint */
+        onfalse_endblock = func->curblock;
     } else
         onfalse = NULL;
 
@@ -1218,9 +1925,9 @@ bool ast_ifthen_codegen(ast_ifthen *self, ast_function *func, bool lvalue, ir_va
         return false;
 
     /* add jumps ot the merge block */
-    if (ontrue && !ir_block_create_jump(ontrue, merge))
+    if (ontrue && !ontrue_endblock->final && !ir_block_create_jump(ontrue_endblock, merge))
         return false;
-    if (onfalse && !ir_block_create_jump(onfalse, merge))
+    if (onfalse && !onfalse_endblock->final && !ir_block_create_jump(onfalse_endblock, merge))
         return false;
 
     /* we create the if here, that way all blocks are ordered :)
@@ -1330,12 +2037,10 @@ bool ast_ternary_codegen(ast_ternary *self, ast_function *func, bool lvalue, ir_
 
     /* create PHI */
     phi = ir_block_create_phi(merge, ast_function_label(func, "phi"), trueval->vtype);
-    if (!phi ||
-        !ir_phi_add(phi, ontrue,  trueval) ||
-        !ir_phi_add(phi, onfalse, falseval))
-    {
+    if (!phi)
         return false;
-    }
+    ir_phi_add(phi, ontrue,  trueval);
+    ir_phi_add(phi, onfalse, falseval);
 
     self->phi_out = ir_phi_value(phi);
     *out = self->phi_out;
@@ -1377,7 +2082,7 @@ bool ast_loop_codegen(ast_loop *self, ast_function *func, bool lvalue, ir_value
     (void)out;
 
     if (self->expression.outr) {
-        printf("internal error: ast_loop cannot be reused, it bears no result!\n");
+        asterror(ast_ctx(self), "internal error: ast_loop cannot be reused, it bears no result!");
         return false;
     }
     self->expression.outr = (ir_value*)1;
@@ -1447,7 +2152,7 @@ bool ast_loop_codegen(ast_loop *self, ast_function *func, bool lvalue, ir_value
         bpostcond = end_bpostcond = NULL;
     }
 
-    bout_id = func->ir_func->blocks_count;
+    bout_id = vec_size(func->ir_func->blocks);
     bout = ir_function_create_block(func->ir_func, ast_function_label(func, "after_loop"));
     if (!bout)
         return false;
@@ -1538,7 +2243,7 @@ bool ast_loop_codegen(ast_loop *self, ast_function *func, bool lvalue, ir_value
         else if (bpostcond)  tmpblock = bpostcond;
         else if (bprecond)   tmpblock = bprecond;
         else                 tmpblock = bout;
-        if (!ir_block_create_jump(end_bbody, tmpblock))
+        if (!end_bbody->final && !ir_block_create_jump(end_bbody, tmpblock))
             return false;
     }
 
@@ -1567,27 +2272,205 @@ bool ast_loop_codegen(ast_loop *self, ast_function *func, bool lvalue, ir_value
     }
 
     /* Move 'bout' to the end */
-    if (!ir_function_blocks_remove(func->ir_func, bout_id) ||
-        !ir_function_blocks_add(func->ir_func, bout))
-    {
-        ir_block_delete(bout);
+    vec_remove(func->ir_func->blocks, bout_id, 1);
+    vec_push(func->ir_func->blocks, bout);
+
+    return true;
+}
+
+bool ast_breakcont_codegen(ast_breakcont *self, ast_function *func, bool lvalue, ir_value **out)
+{
+    ir_block *target;
+
+    if (lvalue) {
+        asterror(ast_ctx(self), "break/continue expression is not an l-value");
+        return false;
+    }
+
+    if (self->expression.outr) {
+        asterror(ast_ctx(self), "internal error: ast_breakcont cannot be reused!");
+        return false;
+    }
+    self->expression.outr = (ir_value*)1;
+
+    if (self->is_continue)
+        target = func->continueblock;
+    else
+        target = func->breakblock;
+
+    if (!ir_block_create_jump(func->curblock, target))
+        return false;
+    return true;
+}
+
+bool ast_switch_codegen(ast_switch *self, ast_function *func, bool lvalue, ir_value **out)
+{
+    ast_expression_codegen *cgen;
+
+    ast_switch_case *def_case  = NULL;
+    ir_block        *def_bfall = NULL;
+
+    ir_value *dummy     = NULL;
+    ir_value *irop      = NULL;
+    ir_block *old_break = NULL;
+    ir_block *bout      = NULL;
+    ir_block *bfall     = NULL;
+    size_t    bout_id;
+    size_t    c;
+
+    char      typestr[1024];
+    uint16_t  cmpinstr;
+
+    if (lvalue) {
+        asterror(ast_ctx(self), "switch expression is not an l-value");
+        return false;
+    }
+
+    if (self->expression.outr) {
+        asterror(ast_ctx(self), "internal error: ast_switch cannot be reused!");
+        return false;
+    }
+    self->expression.outr = (ir_value*)1;
+
+    (void)lvalue;
+    (void)out;
+
+    cgen = self->operand->expression.codegen;
+    if (!(*cgen)((ast_expression*)(self->operand), func, false, &irop))
+        return false;
+
+    if (!vec_size(self->cases))
+        return true;
+
+    cmpinstr = type_eq_instr[irop->vtype];
+    if (cmpinstr >= AINSTR_END) {
+        ast_type_to_string(self->operand, typestr, sizeof(typestr));
+        asterror(ast_ctx(self), "invalid type to perform a switch on: %s", typestr);
         return false;
     }
 
+    bout_id = vec_size(func->ir_func->blocks);
+    bout = ir_function_create_block(func->ir_func, ast_function_label(func, "after_switch"));
+    if (!bout)
+        return false;
+
+    /* setup the break block */
+    old_break        = func->breakblock;
+    func->breakblock = bout;
+
+    /* Now create all cases */
+    for (c = 0; c < vec_size(self->cases); ++c) {
+        ir_value *cond, *val;
+        ir_block *bcase, *bnot;
+        size_t bnot_id;
+
+        ast_switch_case *swcase = &self->cases[c];
+
+        if (swcase->value) {
+            /* A regular case */
+            /* generate the condition operand */
+            cgen = swcase->value->expression.codegen;
+            if (!(*cgen)((ast_expression*)(swcase->value), func, false, &val))
+                return false;
+            /* generate the condition */
+            cond = ir_block_create_binop(func->curblock, ast_function_label(func, "switch_eq"), cmpinstr, irop, val);
+            if (!cond)
+                return false;
+
+            bcase = ir_function_create_block(func->ir_func, ast_function_label(func, "case"));
+            bnot_id = vec_size(func->ir_func->blocks);
+            bnot = ir_function_create_block(func->ir_func, ast_function_label(func, "not_case"));
+            if (!bcase || !bnot)
+                return false;
+            if (!ir_block_create_if(func->curblock, cond, bcase, bnot))
+                return false;
+
+            /* Make the previous case-end fall through */
+            if (bfall && !bfall->final) {
+                if (!ir_block_create_jump(bfall, bcase))
+                    return false;
+            }
+
+            /* enter the case */
+            func->curblock = bcase;
+            cgen = swcase->code->expression.codegen;
+            if (!(*cgen)((ast_expression*)swcase->code, func, false, &dummy))
+                return false;
+
+            /* remember this block to fall through from */
+            bfall = func->curblock;
+
+            /* enter the else and move it down */
+            func->curblock = bnot;
+            vec_remove(func->ir_func->blocks, bnot_id, 1);
+            vec_push(func->ir_func->blocks, bnot);
+        } else {
+            /* The default case */
+            /* Remember where to fall through from: */
+            def_bfall = bfall;
+            bfall     = NULL;
+            /* remember which case it was */
+            def_case  = swcase;
+        }
+    }
+
+    /* Jump from the last bnot to bout */
+    if (bfall && !bfall->final && !ir_block_create_jump(bfall, bout)) {
+        /*
+        astwarning(ast_ctx(bfall), WARN_???, "missing break after last case");
+        */
+        return false;
+    }
+
+    /* If there was a default case, put it down here */
+    if (def_case) {
+        ir_block *bcase;
+
+        /* No need to create an extra block */
+        bcase = func->curblock;
+
+        /* Insert the fallthrough jump */
+        if (def_bfall && !def_bfall->final) {
+            if (!ir_block_create_jump(def_bfall, bcase))
+                return false;
+        }
+
+        /* Now generate the default code */
+        cgen = def_case->code->expression.codegen;
+        if (!(*cgen)((ast_expression*)def_case->code, func, false, &dummy))
+            return false;
+    }
+
+    /* Jump from the last bnot to bout */
+    if (!func->curblock->final && !ir_block_create_jump(func->curblock, bout))
+        return false;
+    /* enter the outgoing block */
+    func->curblock = bout;
+
+    /* restore the break block */
+    func->breakblock = old_break;
+
+    /* Move 'bout' to the end, it's nicer */
+    vec_remove(func->ir_func->blocks, bout_id, 1);
+    vec_push(func->ir_func->blocks, bout);
+
     return true;
 }
 
 bool ast_call_codegen(ast_call *self, ast_function *func, bool lvalue, ir_value **out)
 {
     ast_expression_codegen *cgen;
-    ir_value_vector         params;
+    ir_value              **params;
     ir_instr               *callinstr;
     size_t i;
 
     ir_value *funval = NULL;
 
     /* return values are never lvalues */
-    (void)lvalue;
+    if (lvalue) {
+        asterror(ast_ctx(self), "not an l-value (function call)");
+        return false;
+    }
 
     if (self->expression.outr) {
         *out = self->expression.outr;
@@ -1600,10 +2483,10 @@ bool ast_call_codegen(ast_call *self, ast_function *func, bool lvalue, ir_value
     if (!funval)
         return false;
 
-    MEM_VECTOR_INIT(&params, v);
+    params = NULL;
 
     /* parameters */
-    for (i = 0; i < self->params_count; ++i)
+    for (i = 0; i < vec_size(self->params); ++i)
     {
         ir_value *param;
         ast_expression *expr = self->params[i];
@@ -1613,25 +2496,23 @@ bool ast_call_codegen(ast_call *self, ast_function *func, bool lvalue, ir_value
             goto error;
         if (!param)
             goto error;
-        if (!ir_value_vector_v_add(&params, param))
-            goto error;
+        vec_push(params, param);
     }
 
     callinstr = ir_block_create_call(func->curblock, ast_function_label(func, "call"), funval);
     if (!callinstr)
         goto error;
 
-    for (i = 0; i < params.v_count; ++i) {
-        if (!ir_call_param(callinstr, params.v[i]))
-            goto error;
+    for (i = 0; i < vec_size(params); ++i) {
+        ir_call_param(callinstr, params[i]);
     }
 
     *out = ir_call_value(callinstr);
     self->expression.outr = *out;
 
-    MEM_VECTOR_CLEAR(&params, v);
+    vec_free(params);
     return true;
 error:
-    MEM_VECTOR_CLEAR(&params, v);
+    vec_free(params);
     return false;
 }