DEADSOFTWARE

JVM: Добавлены фреймы (без передачи их локальным функциям)
[dsw-obn.git] / src / backends / jvm / generator-jvm.c
index da8b06b29f5142a7ea9b25cdd2e6c8ed18a00bb8..450105525a0aa9b290fd7e0c3f7c91e5904dfdd9 100644 (file)
@@ -378,7 +378,7 @@ oberon_generate_procedure_pointer_class(oberon_object_t * proc)
 
        fprintf(fp, ".field public static pointer %s\n\n", absdesc);
 
-       fprintf(fp, ".method <init>()V\n");
+       fprintf(fp, ".method private <init>()V\n");
        fprintf(fp, "  aload_0\n");
        fprintf(fp, "  invokespecial %s/<init>()V\n", abscname);
        fprintf(fp, "  return\n");
@@ -404,22 +404,21 @@ oberon_generate_procedure_pointer_class(oberon_object_t * proc)
        oberon_object_t * param = proc -> type -> decl;
        for(int i = 0; i < num; i++)
        {
-               gen_var_t * v = oberon_generator_new_var();
                gen_type_t * t = param -> type -> gen_type;
-               use_size += t -> cell_size;
                if(param -> class == OBERON_CLASS_VAR_PARAM)
                {
-                       jvm_generate_and_init_var_param(p, v, param -> name, t);
-                       jvm_generate_ldst_prepare(p, v);
+                       int reg = jvm_alloc_register_untyped(p -> rf, true);
+                       jvm_generate(p, 0, 1, "aload %i", reg);
+                       jvm_generate(p, 0, 1, "iload %i", reg + 1);
                }
                else
                {
-                       jvm_generate_and_init_named_local_var(p, v, param -> name, t);
-                       jvm_generate_load(p, v);
+                       int reg = jvm_alloc_register_untyped(p -> rf, t -> wide);
+                       jvm_generate(p, 0, t -> cell_size, "%cload %i", t -> prefix, reg);
                }
+               use_size += t -> cell_size;
                param = param -> next;
        }
-
        
        char * full_name = jvm_get_field_full_name(proc);
        int cell_size = jvm_cell_size_for_type(proc -> type -> base);
@@ -522,10 +521,7 @@ oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * rec)
        oberon_object_t * field = rec -> decl;
        for(int i = 0; i < num; i++)
        {
-               char * name = field -> name;
-               gen_var_t * v = field -> gen_var;
-               gen_type_t * t = field -> type -> gen_type;
-               jvm_generate_and_init_field(class, v, name, t);
+               jvm_generate_var(field -> gen_var);
                field = field -> next;
        }
 
@@ -548,7 +544,7 @@ oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * rec)
        for(int i = 0; i < num; i++)
        {
                jvm_generate(p, 0, 1, "aload_0");
-               jvm_generate_variable_initialization(p, field -> gen_var);
+               jvm_generate_var_initialization(p, field -> gen_var);
 
                if(field -> type -> class == OBERON_TYPE_RECORD
                        || field -> type -> class == OBERON_TYPE_ARRAY)
@@ -566,12 +562,16 @@ oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * rec)
        /* Метод для копирования полей класса */
        /* reg0 == src -> reg1 == dst */
        p = jvm_create_proc(class);
-       gen_var_t * copy_dst = oberon_generator_new_var();
-       gen_var_t * copy_src = oberon_generator_new_var();
        char * signature = new_string("(%s%s)V", rec -> gen_type -> desc, rec -> gen_type -> desc);
        jvm_generate_function_header(p, "public static", "$COPY$", signature);
-       jvm_generate_and_init_named_local_var(p, copy_dst, "dst", rec -> gen_type);
-       jvm_generate_and_init_named_local_var(p, copy_src, "src", rec -> gen_type);
+
+       gen_var_t * copy_dst = jvm_create_function_var(p, JVM_STORAGE_REGISTER, "dst", rec -> gen_type);
+       gen_var_t * copy_src = jvm_create_function_var(p, JVM_STORAGE_REGISTER, "src", rec -> gen_type);
+       jvm_generate_var(copy_dst);
+       jvm_generate_var(copy_src);
+       jvm_generate_var_initialization(p, copy_dst);
+       jvm_generate_var_initialization(p, copy_src);
+
        num = rec -> num_decl;
        field = rec -> decl;
        for(int i = 0; i < num; i++)
@@ -611,32 +611,40 @@ oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * rec)
 void
 oberon_generator_init_var(oberon_context_t * ctx, oberon_object_t * var)
 {
-       gen_var_t * v = oberon_generator_new_var();
-       var -> gen_var = v;
-
        gen_module_t * m;
        m = ctx -> mod -> gen_mod;
 
        struct gen_class * class;
        class = m -> class;
 
+       gen_proc_t * p;
+       struct gen_class * c;
+       char * name = var -> name;
+       gen_type_t * t = var -> type -> gen_type;
        switch(var -> class)
        {
                case OBERON_CLASS_VAR_PARAM:
+                       p = var -> parent -> gen_proc;
+                       var -> gen_var = jvm_create_function_var(p, JVM_STORAGE_FRAME_PARAM_VARPTR, name, t);
+                       break;
                case OBERON_CLASS_PARAM:
-                       /* Заполняется при генерации функции */
-                       /* смотри jvm_init_local_object() */
+                       p = var -> parent -> gen_proc;
+                       var -> gen_var = jvm_create_function_var(p, JVM_STORAGE_FRAME_PARAM_VAR, name, t);
                        break;
                case OBERON_CLASS_FIELD:
-                       /* Заполняются при инициализации структуры */
-                       /* смотри oberon_generator_init_record() */
+                       c = var -> parent_type -> gen_type -> class;
+                       var -> gen_var = jvm_create_class_var(c, JVM_STORAGE_FIELD_VAR, name, t);
                        break;
                case OBERON_CLASS_VAR:
-                       /* Локальные заполняются при генерации функции */
-                       /* смотри jvm_init_local_object() */
-                       if(var -> local == false)
+                       if(var -> local)
+                       {
+                               p = var -> parent -> gen_proc;
+                               var -> gen_var = jvm_create_function_var(p, JVM_STORAGE_FRAME_VAR, name, t);
+                       }
+                       else
                        {
-                               jvm_generate_and_init_global_var(class, v, var -> name, var -> type -> gen_type);
+                               var -> gen_var = jvm_create_class_var(class, JVM_STORAGE_STATIC_VAR, name, t);
+                               jvm_generate_var(var -> gen_var);
                        }
                        break;
                default:
@@ -650,16 +658,18 @@ oberon_generator_init_temp_var(oberon_context_t * ctx, oberon_object_t * var)
 {
        assert(var -> class == OBERON_CLASS_VAR);
 
-       gen_var_t * v = oberon_generator_new_var();
-       var -> gen_var = v;
-
        gen_module_t * m;
        m = ctx -> mod -> gen_mod;
 
        gen_proc_t * p;
        p = m -> class -> p;
 
-       jvm_generate_and_init_local_var(p, v, var -> type -> gen_type);
+       gen_type_t * t;
+       t = var -> type -> gen_type;
+
+       var -> gen_var = jvm_create_function_temp_var(p, t);
+       jvm_generate_var(var -> gen_var);
+       jvm_generate_var_initialization(p, var -> gen_var);
 }
 
 void
@@ -667,15 +677,7 @@ oberon_generator_init_proc(oberon_context_t * ctx, oberon_object_t * proc)
 {
        struct gen_class * class = proc -> module -> gen_mod -> class;
        proc -> gen_proc = jvm_create_proc(class);
-
-       if(proc -> local)
-       {
-               gen_error("generator: local procedures not implemented");
-       }
-       else
-       {
-               oberon_generate_procedure_pointer_class(proc);
-       }
+       proc -> gen_proc -> full_name = jvm_get_field_full_name_safe(proc);
 }
 
 void
@@ -723,7 +725,7 @@ oberon_generate_begin_module(oberon_context_t * ctx)
        {
                if(x -> class == OBERON_CLASS_VAR)
                {
-                       jvm_generate_variable_initialization(p, x -> gen_var);
+                       jvm_generate_var_initialization(p, x -> gen_var);
                        if(x -> type -> class == OBERON_TYPE_ARRAY
                                || x -> type -> class == OBERON_TYPE_RECORD)
                        {
@@ -802,7 +804,7 @@ jvm_generate_record_duplicate_and_replace(gen_proc_t * p, gen_var_t * v, oberon_
 }
 
 static void
-jvm_init_local_object(gen_proc_t * p, oberon_object_t * x)
+jvm_generate_local_object(gen_proc_t * p, oberon_object_t * x)
 {
        gen_var_t * v;
        struct gen_class * class;
@@ -817,14 +819,14 @@ jvm_init_local_object(gen_proc_t * p, oberon_object_t * x)
        switch(x -> class)
        {
                case OBERON_CLASS_VAR_PARAM:
-                       jvm_generate_and_init_var_param(p, v, x -> name, x -> type -> gen_type);
-                       break;
-               case OBERON_CLASS_VAR:
                case OBERON_CLASS_PARAM:
-                       jvm_generate_and_init_named_local_var(p, v, x -> name, x -> type -> gen_type);
+               case OBERON_CLASS_VAR:
+                       jvm_generate_var(v);
+                       break;
+               case OBERON_CLASS_PROC:
                        break;
                default:
-                       gen_error("jvm_init_local_object: wat");
+                       gen_error("jvm_generate_local_initialization: wat");
                        break;
        }
 }
@@ -845,63 +847,67 @@ jvm_generate_local_initialization(gen_proc_t * p, oberon_object_t * x)
        switch(x -> class)
        {
                case OBERON_CLASS_VAR_PARAM:
-                       break;
+               case OBERON_CLASS_PARAM:
                case OBERON_CLASS_VAR:
-                       jvm_generate_variable_initialization(p, v);
+                       jvm_generate_var_initialization(p, v);
                        break;
-               case OBERON_CLASS_PARAM:
-                       jvm_generate_param_initialization(p, v);
+               case OBERON_CLASS_PROC:
                        break;
                default:
                        gen_error("jvm_generate_local_initialization: wat");
                        break;
        }
+
+       if(x -> class == OBERON_CLASS_PARAM)
+       {
+               if(x -> type -> class == OBERON_TYPE_ARRAY)
+               {
+                       jvm_generate_array_duplicate_and_replace(p, v, x -> type);
+               }
+               else if(x -> type -> class == OBERON_TYPE_RECORD)
+               {                               
+                       jvm_generate_record_duplicate_and_replace(p, v, x -> type);
+               }
+       }
 }
 
 void
 oberon_generate_begin_proc(oberon_context_t * ctx, oberon_object_t * proc)
 {
        gen_proc_t * p;
+       char * name;
        char * signature;
+       oberon_object_t * var;
 
        p = proc -> gen_proc;
 
+       if(proc -> local == false)
+       {
+               oberon_generate_procedure_pointer_class(proc);
+       }
+
        signature = jvm_get_procedure_signature(proc -> type);
-       jvm_generate_function_header(p, "public static", proc -> name, signature);
+       name = jvm_get_name(proc);
+       jvm_generate_function_header(p, "public static", name, signature);
 
-       /* Ð\92Ñ\8bделение Ñ\80егиÑ\81Ñ\82Ñ\80ов Ð¿Ð¾Ð´ Ð¿Ð°Ñ\80амеÑ\82Ñ\80Ñ\8b Ð¸ Ð¿ÐµÑ\80еменнÑ\8bе */
-       oberon_object_t * var = proc -> scope -> list -> next;
+       /* Ð¡Ð¾Ð·Ð´Ð°Ð½Ð¸Ðµ Ð¿Ð°Ñ\80амеÑ\80ов Ð¸ Ð¿ÐµÑ\80еменнÑ\8bÑ\85 */
+       var = proc -> scope -> list -> next;
        while(var)
        {
-               jvm_init_local_object(p, var);
+               jvm_generate_local_object(p, var);
                var = var -> next;
        }
 
-       /* Инициализация */
+       jvm_generate_procedure_frame(proc);
+       jvm_generate_frame_initialization(p);
+
+       /* Инициализация парамеров и переменных */
        var = proc -> scope -> list -> next;
        while(var)
        {
                jvm_generate_local_initialization(p, var);
                var = var -> next;
        }
-
-       /* Копирование статических/открытых массивов и записей */
-       var = proc -> type -> decl;
-       while(var)
-       {
-               if(var -> class == OBERON_CLASS_PARAM || var -> class == OBERON_CLASS_VAR_PARAM)
-               {
-                       if(var -> type -> class == OBERON_TYPE_ARRAY)
-                       {
-                               jvm_generate_array_duplicate_and_replace(p, var -> gen_var, var -> type);
-                       }
-                       else if(var -> type -> class == OBERON_TYPE_RECORD)
-                       {                               
-                               jvm_generate_record_duplicate_and_replace(p, var -> gen_var, var -> type);
-                       }
-               }
-               var = var -> next;
-       }       
 }
 
 void
@@ -1419,10 +1425,12 @@ jvm_generate_range(gen_proc_t * p, oberon_expr_t * a, oberon_expr_t * b)
        }
        else
        {
-               ra = oberon_generator_new_var();
-               rb = oberon_generator_new_var();
-               jvm_generate_and_init_local_var(p, ra, type -> gen_type);
-               jvm_generate_and_init_local_var(p, rb, type -> gen_type);
+               ra = jvm_create_function_temp_var(p, type -> gen_type);
+               rb = jvm_create_function_temp_var(p, type -> gen_type);
+               jvm_generate_var(ra);
+               jvm_generate_var(rb);
+               jvm_generate_var_initialization(p, ra);
+               jvm_generate_var_initialization(p, rb);
                label_else = jvm_new_label_id(p);
                label_end = jvm_new_label_id(p);