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proto object

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This commit is contained in:
ridethepig 2023-03-29 16:08:12 +00:00
parent bcbafc9972
commit 3ef6812784
2 changed files with 38 additions and 6 deletions
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43
assignments/PA5/cgen.cc
View File

@ -601,7 +601,39 @@ void CgenClassTable::code_dispatchTable() {
}
}
void CgenClassTable::code_prototypeObject() {}
void CgenClassTable::code_prototypeObject() {
auto int_default = inttable.lookup_string("0");
auto str_default = stringtable.lookup_string("");
auto bool_default = &falsebool;
for (auto node : nodes) {
str << WORD << "-1\n"; // GC tag
str << node->name << PROTOBJ_SUFFIX << LABEL; // proto obj label
str << WORD << node->get_class_tag() << endl; // class tag
str << WORD << node->get_object_size() << endl; // object size
str << WORD << node->get_name() << DISPTAB_SUFFIX << endl; // dispatch ptr
for (auto attr : *node->get_attributes()) {
if (attr->type_decl == Int) {
str << WORD;
int_default->code_ref(str);
str << endl;
} else if (attr->type_decl == Bool) {
str << WORD;
bool_default->code_ref(str);
str << endl;
} else if (attr->type_decl == Str) {
str << WORD;
str_default->code_ref(str);
str << endl;
} else {
// for other types(including _prim_slot type), set to void(null pointer)
str << WORD;
str << 0;
str << endl;
}
}
}
}
CgenClassTable::CgenClassTable(Classes classes, ostream &s) : str(s) {
enterscope();
@ -903,11 +935,10 @@ void CgenClassTable::code() {
nodes[0]->traverse_generate_object();
// nodes[0] is the Object class
code_dispatchTable();
// Add your code to emit
// - prototype objects
// - class_nameTab
// - dispatch tables
//
if (cgen_debug)
cout << "coding prototype objects" << endl;
code_prototypeObject();
if (cgen_debug)
cout << "coding global text" << endl;

1
assignments/PA5/example.cl
View File

@ -21,6 +21,7 @@ class B inherits A {
class C inherits A {
attr_C_1 : String <- "This is C\n";
attr_C_2 : SELF_TYPE;
method_common(x1: Int) : SELF_TYPE {
self
};