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Char arrays

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This commit is contained in:
vegowotenks 2024-09-10 12:26:05 +02:00
parent 6610b09c16
commit c6e4ecec3d
6 changed files with 407 additions and 55 deletions
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208
src/native_methods.rs
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@ -49,6 +49,8 @@ impl JavaLangClass {
};
// max_locals: 1
// max_stack: 1
let class = jvm.class_store.class_file_from_idx(frame.class_index).unwrap();
let method = &class.methods[frame.method_index as usize];
let class_class_index = jvm.class_store.class_idx_from_name(&String::from("java/lang/Class")).unwrap();
let (string_class_file, string_class_index) = jvm.class_store.get_class(&String::from("java/lang/String")).unwrap();
let string_equals_index = string_class_file.find_method_index(&String::from("equals")).unwrap();
@ -57,7 +59,9 @@ impl JavaLangClass {
_ => unreachable!(),
};
match frame.instruction_pointer {
frame.instruction_pointer += 1;
match frame.instruction_pointer - 1 {
0 => {
let boolean_class_ref = jvm.class_store.primitive_classes.boolean_class;
let boolean_class_name_ref = match jvm.heap_area.object_area.get_object_field(
@ -77,10 +81,206 @@ impl JavaLangClass {
&[StackValue::Reference(boolean_class_name_ref), StackValue::Reference(passed_wanted_string)],
);
frame.instruction_pointer += 1;
Ok(JVMCallbackOperation::PushFrame(string_compare_frame))
},
}
1 => {
if wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? == 1 {
let boolean_class_ref = jvm.class_store.primitive_classes.boolean_class;
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(boolean_class_ref)))
} else {
let byte_class_ref = jvm.class_store.primitive_classes.byte_class;
let byte_class_name_ref = match jvm.heap_area.object_area.get_object_field(
byte_class_ref,
"name",
class_class_index,
&jvm.class_store
).unwrap() {
FieldValue::Reference(r) => r,
_ => unreachable!(),
};
let string_compare_frame = StackFrame::new(
string_class_file,
string_class_index,
string_equals_index as u16,
&[StackValue::Reference(byte_class_name_ref), StackValue::Reference(passed_wanted_string)],
);
Ok(JVMCallbackOperation::PushFrame(string_compare_frame))
}
}
2 => {
if wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? == 1 {
let char_class_ref = jvm.class_store.primitive_classes.char_class;
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(char_class_ref)))
} else {
let char_class_ref = jvm.class_store.primitive_classes.char_class;
let char_class_name_ref = match jvm.heap_area.object_area.get_object_field(
char_class_ref,
"name",
class_class_index,
&jvm.class_store
).unwrap() {
FieldValue::Reference(r) => r,
_ => unreachable!(),
};
let string_compare_frame = StackFrame::new(
string_class_file,
string_class_index,
string_equals_index as u16,
&[StackValue::Reference(char_class_name_ref), StackValue::Reference(passed_wanted_string)],
);
Ok(JVMCallbackOperation::PushFrame(string_compare_frame))
}
}
3 => {
if wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? == 1 {
let short_class_ref = jvm.class_store.primitive_classes.short_class;
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(short_class_ref)))
} else {
let short_class_ref = jvm.class_store.primitive_classes.short_class;
let short_class_name_ref = match jvm.heap_area.object_area.get_object_field(
short_class_ref,
"name",
class_class_index,
&jvm.class_store
).unwrap() {
FieldValue::Reference(r) => r,
_ => unreachable!(),
};
let string_compare_frame = StackFrame::new(
string_class_file,
string_class_index,
string_equals_index as u16,
&[StackValue::Reference(short_class_name_ref), StackValue::Reference(passed_wanted_string)],
);
Ok(JVMCallbackOperation::PushFrame(string_compare_frame))
}
}
4 => {
if wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? == 1 {
let int_class_ref = jvm.class_store.primitive_classes.int_class;
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(int_class_ref)))
} else {
let int_class_ref = jvm.class_store.primitive_classes.int_class;
let int_class_name_ref = match jvm.heap_area.object_area.get_object_field(
int_class_ref,
"name",
class_class_index,
&jvm.class_store
).unwrap() {
FieldValue::Reference(r) => r,
_ => unreachable!(),
};
let string_compare_frame = StackFrame::new(
string_class_file,
string_class_index,
string_equals_index as u16,
&[StackValue::Reference(int_class_name_ref), StackValue::Reference(passed_wanted_string)],
);
Ok(JVMCallbackOperation::PushFrame(string_compare_frame))
}
}
5 => {
if wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? == 1 {
let float_class_ref = jvm.class_store.primitive_classes.float_class;
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(float_class_ref)))
} else {
let float_class_ref = jvm.class_store.primitive_classes.float_class;
let float_class_name_ref = match jvm.heap_area.object_area.get_object_field(
float_class_ref,
"name",
class_class_index,
&jvm.class_store
).unwrap() {
FieldValue::Reference(r) => r,
_ => unreachable!(),
};
let string_compare_frame = StackFrame::new(
string_class_file,
string_class_index,
string_equals_index as u16,
&[StackValue::Reference(float_class_name_ref), StackValue::Reference(passed_wanted_string)],
);
Ok(JVMCallbackOperation::PushFrame(string_compare_frame))
}
}
6 => {
if wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? == 1 {
let double_class_ref = jvm.class_store.primitive_classes.double_class;
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(double_class_ref)))
} else {
let double_class_ref = jvm.class_store.primitive_classes.double_class;
let double_class_name_ref = match jvm.heap_area.object_area.get_object_field(
double_class_ref,
"name",
class_class_index,
&jvm.class_store
).unwrap() {
FieldValue::Reference(r) => r,
_ => unreachable!(),
};
let string_compare_frame = StackFrame::new(
string_class_file,
string_class_index,
string_equals_index as u16,
&[StackValue::Reference(double_class_name_ref), StackValue::Reference(passed_wanted_string)],
);
Ok(JVMCallbackOperation::PushFrame(string_compare_frame))
}
}
7 => {
if wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? == 1 {
let long_class_ref = jvm.class_store.primitive_classes.long_class;
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(long_class_ref)))
} else {
let long_class_ref = jvm.class_store.primitive_classes.long_class;
let long_class_name_ref = match jvm.heap_area.object_area.get_object_field(
long_class_ref,
"name",
class_class_index,
&jvm.class_store
).unwrap() {
FieldValue::Reference(r) => r,
_ => unreachable!(),
};
let string_compare_frame = StackFrame::new(
string_class_file,
string_class_index,
string_equals_index as u16,
&[StackValue::Reference(long_class_name_ref), StackValue::Reference(passed_wanted_string)],
);
Ok(JVMCallbackOperation::PushFrame(string_compare_frame))
}
}
8 => {
if wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? == 1 {
let long_class_ref = jvm.class_store.primitive_classes.long_class;
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(long_class_ref)))
} else {
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(ObjectReference::NULL)))
}
}
_ => Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(ObjectReference::NULL)))
}
}