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neater code

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BENEDEK 2024-04-12 21:54:28 +02:00
parent d5e3237bb2
commit e72ae7bebb
1 changed files with 40 additions and 43 deletions
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83
classfile.c
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@ -81,71 +81,68 @@ void parse_attribute(ClassFile* cf, attribute_info* base, FILE* file) {
read_u2(&(base->info.stack_map_table_attribute.number_of_entries), 1, file);
base->info.stack_map_table_attribute.entries = malloc(sizeof(stack_map_frame) * base->info.stack_map_table_attribute.number_of_entries);
for (u2 i = 0; i < base->info.stack_map_table_attribute.number_of_entries; i++) {
fread(&(base->info.stack_map_table_attribute.entries[i].frame_type), 1, 1, file);
u1 frame_type = base->info.stack_map_table_attribute.entries[i].frame_type;
stack_map_frame* entry = &(base->info.stack_map_table_attribute.entries[i]);
fread(&(entry->frame_type), 1, 1, file);
u1 frame_type = entry->frame_type;
switch (stack_frame_type_enum(frame_type)) {
case SAME:
break;
case SAME_LOCALS_1_STACK_ITEM_FRAME:
fread(&(base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame.stack[0].tag), 1, 1, file);
if (base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame.stack[0].tag == ITEM_Object) {
read_u2(&(base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame.stack[0].Object_variable_info.cpool_index), 1, file);
} else if (base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame.stack[0].tag == ITEM_Uninitialized) {
read_u2(&(base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame.stack[0].Uninitialized_variable_info.offset), 1, file);
fread(&(entry->same_locals_1_stack_item_frame.stack[0].tag), 1, 1, file);
if (entry->same_locals_1_stack_item_frame.stack[0].tag == ITEM_Object) {
read_u2(&(entry->same_locals_1_stack_item_frame.stack[0].Object_variable_info.cpool_index), 1, file);
} else if (entry->same_locals_1_stack_item_frame.stack[0].tag == ITEM_Uninitialized) {
read_u2(&(entry->same_locals_1_stack_item_frame.stack[0].Uninitialized_variable_info.offset), 1, file);
}
break;
case SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED:
read_u2(&(base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame_extended.offset_delta), 1, file);
fread(&(base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame_extended.stack[0].tag), 1, 1, file);
if (base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame_extended.stack[0].tag == ITEM_Object) {
read_u2(&(base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame_extended.stack[0].Object_variable_info.cpool_index), 1,
file);
} else if (base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame_extended.stack[0].tag == ITEM_Uninitialized) {
read_u2(&(base->info.stack_map_table_attribute.entries[i].same_locals_1_stack_item_frame_extended.stack[0].Uninitialized_variable_info.offset), 1,
file);
read_u2(&(entry->same_locals_1_stack_item_frame_extended.offset_delta), 1, file);
fread(&(entry->same_locals_1_stack_item_frame_extended.stack[0].tag), 1, 1, file);
if (entry->same_locals_1_stack_item_frame_extended.stack[0].tag == ITEM_Object) {
read_u2(&(entry->same_locals_1_stack_item_frame_extended.stack[0].Object_variable_info.cpool_index), 1, file);
} else if (entry->same_locals_1_stack_item_frame_extended.stack[0].tag == ITEM_Uninitialized) {
read_u2(&(entry->same_locals_1_stack_item_frame_extended.stack[0].Uninitialized_variable_info.offset), 1, file);
}
break;
case CHOP:
read_u2(&(base->info.stack_map_table_attribute.entries[i].chop_frame.offset_delta), 1, file);
read_u2(&(entry->chop_frame.offset_delta), 1, file);
break;
case SAME_FRAME_EXTENDED:
read_u2(&(base->info.stack_map_table_attribute.entries[i].same_frame_extended.offset_delta), 1, file);
read_u2(&(entry->same_frame_extended.offset_delta), 1, file);
break;
case APPEND:
read_u2(&(base->info.stack_map_table_attribute.entries[i].append_frame.offset_delta), 1, file);
read_u2(&(entry->append_frame.offset_delta), 1, file);
u2 count = frame_type - 251;
base->info.stack_map_table_attribute.entries[i].append_frame.locals = malloc(sizeof(verification_type_info) * count);
entry->append_frame.locals = malloc(sizeof(verification_type_info) * count);
for (u2 j = 0; j < count; j++) {
fread(&(base->info.stack_map_table_attribute.entries[i].append_frame.locals[j].tag), 1, 1, file);
if (base->info.stack_map_table_attribute.entries[i].append_frame.locals[j].tag == ITEM_Object) {
read_u2(&(base->info.stack_map_table_attribute.entries[i].append_frame.locals[j].Object_variable_info.cpool_index), 1, file);
} else if (base->info.stack_map_table_attribute.entries[i].append_frame.locals[j].tag == ITEM_Uninitialized) {
read_u2(&(base->info.stack_map_table_attribute.entries[i].append_frame.locals[j].Uninitialized_variable_info.offset), 1, file);
fread(&(entry->append_frame.locals[j].tag), 1, 1, file);
if (entry->append_frame.locals[j].tag == ITEM_Object) {
read_u2(&(entry->append_frame.locals[j].Object_variable_info.cpool_index), 1, file);
} else if (entry->append_frame.locals[j].tag == ITEM_Uninitialized) {
read_u2(&(entry->append_frame.locals[j].Uninitialized_variable_info.offset), 1, file);
}
}
break;
case FULL_FRAME:
read_u2(&(base->info.stack_map_table_attribute.entries[i].full_frame.offset_delta), 1, file);
read_u2(&(base->info.stack_map_table_attribute.entries[i].full_frame.number_of_locals), 1, file);
base->info.stack_map_table_attribute.entries[i].full_frame.locals =
malloc(sizeof(verification_type_info) * base->info.stack_map_table_attribute.entries[i].full_frame.number_of_locals);
for (u2 j = 0; j < base->info.stack_map_table_attribute.entries[i].full_frame.number_of_locals; j++) {
fread(&(base->info.stack_map_table_attribute.entries[i].full_frame.locals[j].tag), 1, 1, file);
if (base->info.stack_map_table_attribute.entries[i].full_frame.locals[j].tag == ITEM_Object) {
read_u2(&(base->info.stack_map_table_attribute.entries[i].full_frame.locals[j].Object_variable_info.cpool_index), 1, file);
} else if (base->info.stack_map_table_attribute.entries[i].full_frame.locals[j].tag == ITEM_Uninitialized) {
read_u2(&(base->info.stack_map_table_attribute.entries[i].full_frame.locals[j].Uninitialized_variable_info.offset), 1, file);
read_u2(&(entry->full_frame.offset_delta), 1, file);
read_u2(&(entry->full_frame.number_of_locals), 1, file);
entry->full_frame.locals = malloc(sizeof(verification_type_info) * entry->full_frame.number_of_locals);
for (u2 j = 0; j < entry->full_frame.number_of_locals; j++) {
fread(&(entry->full_frame.locals[j].tag), 1, 1, file);
if (entry->full_frame.locals[j].tag == ITEM_Object) {
read_u2(&(entry->full_frame.locals[j].Object_variable_info.cpool_index), 1, file);
} else if (entry->full_frame.locals[j].tag == ITEM_Uninitialized) {
read_u2(&(entry->full_frame.locals[j].Uninitialized_variable_info.offset), 1, file);
}
}
read_u2(&(base->info.stack_map_table_attribute.entries[i].full_frame.number_of_stack_items), 1, file);
base->info.stack_map_table_attribute.entries[i].full_frame.stack =
malloc(sizeof(verification_type_info) * base->info.stack_map_table_attribute.entries[i].full_frame.number_of_stack_items);
for (u2 j = 0; j < base->info.stack_map_table_attribute.entries[i].full_frame.number_of_stack_items; j++) {
fread(&(base->info.stack_map_table_attribute.entries[i].full_frame.stack[j].tag), 1, 1, file);
if (base->info.stack_map_table_attribute.entries[i].full_frame.stack[j].tag == ITEM_Object) {
read_u2(&(base->info.stack_map_table_attribute.entries[i].full_frame.stack[j].Object_variable_info.cpool_index), 1, file);
} else if (base->info.stack_map_table_attribute.entries[i].full_frame.stack[j].tag == ITEM_Uninitialized) {
read_u2(&(base->info.stack_map_table_attribute.entries[i].full_frame.stack[j].Uninitialized_variable_info.offset), 1, file);
read_u2(&(entry->full_frame.number_of_stack_items), 1, file);
entry->full_frame.stack = malloc(sizeof(verification_type_info) * entry->full_frame.number_of_stack_items);
for (u2 j = 0; j < entry->full_frame.number_of_stack_items; j++) {
fread(&(entry->full_frame.stack[j].tag), 1, 1, file);
if (entry->full_frame.stack[j].tag == ITEM_Object) {
read_u2(&(entry->full_frame.stack[j].Object_variable_info.cpool_index), 1, file);
} else if (entry->full_frame.stack[j].tag == ITEM_Uninitialized) {
read_u2(&(entry->full_frame.stack[j].Uninitialized_variable_info.offset), 1, file);
}
}
break;