爱特每羊队
569 lines
19 KiB
Rust
569 lines
19 KiB
Rust
use oxide_kernel::shape_forge::EMPTY_SHAPE_ID;
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use oxide_types::object::JsObject;
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use oxide_types::value::JsValue;
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use crate::coercion;
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use crate::native::NativeResult;
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use crate::vm::Vm;
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use memchr::memchr;
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fn this_string(vm: &Vm, args: &[u8]) -> String {
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coercion::to_string(vm.kernel_core().string_forge().as_ref(), vm.reg(args[0]))
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}
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pub fn string_from_char_code(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let mut out = String::new();
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for &arg_reg in args.iter().skip(1) {
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let code = coercion::to_uint32(vm.reg(arg_reg), vm.kernel_core().string_forge().as_ref()) & 0xFFFF;
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if let Some(ch) = char::from_u32(code) {
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out.push(ch);
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} else {
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out.push('\u{FFFD}');
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}
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}
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NativeResult::Ok(vm.intern(&out))
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}
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pub fn string_value_of(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let this_val = vm.reg(args[0]);
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if this_val.is_string() {
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return NativeResult::Ok(this_val);
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}
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if this_val.is_object() {
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let ptr = this_val.as_js_object_ptr();
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if !ptr.is_null() {
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let obj = unsafe { &*ptr };
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if obj.is_string_obj() {
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return NativeResult::Ok(obj.get_prop_at(0));
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}
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}
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}
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NativeResult::Err(crate::builtins::error::create_type_error(
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vm,
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"String.prototype.valueOf called on non-String object",
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))
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}
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fn make_string_array(vm: &mut Vm, parts: &[String]) -> JsValue {
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let proto = vm.session().builtin_world().array_proto.as_ptr() as *mut JsObject;
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let n = parts.len();
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let arr =
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vm.epoch()
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.alloc(JsObject::new_array(EMPTY_SHAPE_ID, JsValue::from_js_object(proto), n, vm.epoch().bump()));
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unsafe {
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for (i, s) in parts.iter().enumerate() {
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let sv = vm.intern(s);
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(*arr).set_prop_at(i, sv);
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}
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(*arr).set_prop_count(n);
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}
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JsValue::from_js_object(arr)
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}
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fn as_string(vm: &Vm, val: JsValue) -> String {
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coercion::to_string(vm.kernel_core().string_forge().as_ref(), val)
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}
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fn char_len(s: &str) -> usize {
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s.chars().count()
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}
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fn byte_index_at_char(s: &str, char_pos: usize) -> usize {
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if char_pos == 0 {
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return 0;
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}
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s.char_indices().nth(char_pos).map(|(idx, _)| idx).unwrap_or(s.len())
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}
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fn char_slice(s: &str, start: usize, end: usize) -> &str {
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let start_byte = byte_index_at_char(s, start);
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let end_byte = byte_index_at_char(s, end);
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&s[start_byte..end_byte]
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}
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fn take_chars(s: &str, count: usize) -> String {
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s.chars().take(count).collect()
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}
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fn is_regexp_obj(val: JsValue, vm: &Vm) -> bool {
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if !val.is_object() {
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return false;
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}
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let ptr = val.as_js_object_ptr();
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if ptr.is_null() {
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return false;
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}
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let obj = unsafe { &*ptr };
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let proto = obj.proto();
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if !proto.is_object() {
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return false;
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}
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let proto_ptr = proto.as_js_object_ptr();
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if proto_ptr.is_null() {
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return false;
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}
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let rp = vm.session().builtin_world().regexp_proto.as_ptr() as *mut JsObject;
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std::ptr::eq(proto_ptr, rp)
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}
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pub fn string_index_of(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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let n = char_len(&s);
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if args.len() < 2 {
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return NativeResult::Ok(JsValue::int(-1));
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}
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let search = as_string(vm, vm.reg(args[1]));
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let pos = if args.len() > 2 {
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(coercion::to_number(vm.reg(args[2]), vm.kernel_core().string_forge().as_ref()) as usize).min(n)
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} else {
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0
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};
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if search.is_empty() {
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return NativeResult::Ok(JsValue::int(pos as i32));
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}
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let start_byte = byte_index_at_char(&s, pos);
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let haystack = &s[start_byte..];
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if search.len() == 1 {
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if let Some(idx) = memchr(search.as_bytes()[0], haystack.as_bytes()) {
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let matched_byte = start_byte + idx;
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return NativeResult::Ok(JsValue::int(char_len(&s[..matched_byte]) as i32));
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}
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} else if let Some(idx) = haystack.find(&search) {
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let matched_byte = start_byte + idx;
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return NativeResult::Ok(JsValue::int(char_len(&s[..matched_byte]) as i32));
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}
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NativeResult::Ok(JsValue::int(-1))
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}
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pub fn string_includes(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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let n = char_len(&s);
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if args.len() < 2 {
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return NativeResult::Ok(JsValue::bool(false));
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}
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let search = as_string(vm, vm.reg(args[1]));
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let pos = if args.len() > 2 {
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(coercion::to_number(vm.reg(args[2]), vm.kernel_core().string_forge().as_ref()) as usize).min(n)
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} else {
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0
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};
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if search.is_empty() {
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return NativeResult::Ok(JsValue::bool(true));
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}
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let haystack = &s[byte_index_at_char(&s, pos)..];
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if search.len() == 1 {
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NativeResult::Ok(JsValue::bool(memchr(search.as_bytes()[0], haystack.as_bytes()).is_some()))
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} else {
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NativeResult::Ok(JsValue::bool(haystack.contains(&search)))
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}
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}
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pub fn string_char_at(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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if args.len() < 2 {
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if s.is_empty() {
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return NativeResult::Ok(vm.intern(""));
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}
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return NativeResult::Ok(vm.intern(&take_chars(&s, 1)));
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}
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let idx = coercion::to_number(vm.reg(args[1]), vm.kernel_core().string_forge().as_ref()) as i32;
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if idx < 0 || idx as usize >= char_len(&s) {
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return NativeResult::Ok(vm.intern(""));
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}
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let ch = s.chars().nth(idx as usize).map(|c| c.to_string()).unwrap_or_default();
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NativeResult::Ok(vm.intern(&ch))
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}
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pub fn string_char_code_at(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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if args.len() < 2 {
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if s.is_empty() {
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return NativeResult::Ok(JsValue::float(f64::NAN));
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}
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return NativeResult::Ok(JsValue::int(s.chars().next().unwrap() as i32));
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}
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let idx = coercion::to_number(vm.reg(args[1]), vm.kernel_core().string_forge().as_ref()) as i32;
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if idx < 0 || idx as usize >= char_len(&s) {
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return NativeResult::Ok(JsValue::float(f64::NAN));
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}
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NativeResult::Ok(JsValue::int(s.chars().nth(idx as usize).unwrap() as i32))
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}
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pub fn string_concat(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let mut result = this_string(vm, args);
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let sf = vm.kernel_core().string_forge().as_ref();
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for &arg_reg in args.iter().skip(1) {
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result.push_str(&coercion::to_string(sf, vm.reg(arg_reg)));
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}
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NativeResult::Ok(vm.intern(&result))
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}
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pub fn string_slice(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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let n = char_len(&s) as i32;
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let start = if args.len() > 1 {
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let v = coercion::to_number(vm.reg(args[1]), vm.kernel_core().string_forge().as_ref()) as i32;
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if v < 0 {
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(n + v).max(0)
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} else {
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v.min(n)
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}
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} else {
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0
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};
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let end = if args.len() > 2 {
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let v = coercion::to_number(vm.reg(args[2]), vm.kernel_core().string_forge().as_ref()) as i32;
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if v < 0 {
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(n + v).max(0)
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} else {
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v.min(n)
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}
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} else {
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n
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};
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let start = start as usize;
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let end = end as usize;
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let result = if start < end { char_slice(&s, start, end) } else { "" };
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NativeResult::Ok(vm.intern(result))
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}
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pub fn string_substring(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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let n = char_len(&s) as i32;
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let mut start = if args.len() > 1 {
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(coercion::to_number(vm.reg(args[1]), vm.kernel_core().string_forge().as_ref()) as i32)
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.max(0)
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.min(n)
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} else {
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0
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};
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let mut end = if args.len() > 2 {
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(coercion::to_number(vm.reg(args[2]), vm.kernel_core().string_forge().as_ref()) as i32)
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.max(0)
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.min(n)
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} else {
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n
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};
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if start > end {
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std::mem::swap(&mut start, &mut end);
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}
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let result = char_slice(&s, start as usize, end as usize);
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NativeResult::Ok(vm.intern(result))
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}
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pub fn string_to_upper_case(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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NativeResult::Ok(vm.intern(&s.to_uppercase()))
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}
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pub fn string_to_lower_case(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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NativeResult::Ok(vm.intern(&s.to_lowercase()))
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}
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pub fn string_trim(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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NativeResult::Ok(vm.intern(s.trim()))
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}
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pub fn string_repeat(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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let n = if args.len() > 1 {
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(coercion::to_number(vm.reg(args[1]), vm.kernel_core().string_forge().as_ref()) as usize).min(10000)
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} else {
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1
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};
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NativeResult::Ok(vm.intern(&s.repeat(n)))
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}
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pub fn string_pad_start(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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let s_len = char_len(&s);
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let target = if args.len() > 1 {
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coercion::to_number(vm.reg(args[1]), vm.kernel_core().string_forge().as_ref()) as usize
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} else {
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s_len
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};
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if target > 10000 {
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return NativeResult::Err(crate::builtins::error::create_range_error(vm, "Invalid string length"));
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}
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let pad = if args.len() > 2 { as_string(vm, vm.reg(args[2])) } else { " ".to_string() };
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if s_len >= target || pad.is_empty() {
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return NativeResult::Ok(vm.intern(&s));
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}
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let needed = target - s_len;
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let pad_len = char_len(&pad).max(1);
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let reps = needed.div_ceil(pad_len);
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let mut out = take_chars(&pad.repeat(reps), needed);
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out.push_str(&s);
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NativeResult::Ok(vm.intern(&out))
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}
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pub fn string_pad_end(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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let s_len = char_len(&s);
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let target = if args.len() > 1 {
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coercion::to_number(vm.reg(args[1]), vm.kernel_core().string_forge().as_ref()) as usize
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} else {
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s_len
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};
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if target > 10000 {
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return NativeResult::Err(crate::builtins::error::create_range_error(vm, "Invalid string length"));
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}
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let pad = if args.len() > 2 { as_string(vm, vm.reg(args[2])) } else { " ".to_string() };
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if s_len >= target || pad.is_empty() {
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return NativeResult::Ok(vm.intern(&s));
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}
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let needed = target - s_len;
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let pad_len = char_len(&pad).max(1);
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let reps = needed.div_ceil(pad_len);
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let mut out = s;
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out.push_str(&take_chars(&pad.repeat(reps), needed));
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NativeResult::Ok(vm.intern(&out))
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}
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pub fn string_starts_with(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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let n = char_len(&s);
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if args.len() < 2 {
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return NativeResult::Ok(JsValue::bool(false));
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}
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let search = as_string(vm, vm.reg(args[1]));
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let pos = if args.len() > 2 {
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(coercion::to_number(vm.reg(args[2]), vm.kernel_core().string_forge().as_ref()) as usize).min(n)
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} else {
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0
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};
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NativeResult::Ok(JsValue::bool(s[byte_index_at_char(&s, pos)..].starts_with(&search)))
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}
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pub fn string_ends_with(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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let n = char_len(&s);
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if args.len() < 2 {
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return NativeResult::Ok(JsValue::bool(false));
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}
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let search = as_string(vm, vm.reg(args[1]));
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let end_pos = if args.len() > 2 {
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(coercion::to_number(vm.reg(args[2]), vm.kernel_core().string_forge().as_ref()) as usize).min(n)
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} else {
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n
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};
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NativeResult::Ok(JsValue::bool(s[..byte_index_at_char(&s, end_pos)].ends_with(&search)))
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}
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pub fn string_split(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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if args.len() < 2 {
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let parts = vec![s.clone()];
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return NativeResult::Ok(make_string_array(vm, &parts));
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}
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let sep_val = vm.reg(args[1]);
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let limit = if args.len() > 2 {
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coercion::to_number(vm.reg(args[2]), vm.kernel_core().string_forge().as_ref()) as usize
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} else {
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usize::MAX
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};
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if is_regexp_obj(sep_val, vm) {
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let re_ptr = sep_val.as_js_object_ptr();
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let re = unsafe { &*re_ptr };
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let fn_ptr = match re.native_fn() {
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Some(p) => p,
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None => {
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let parts = vec![s.clone()];
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return NativeResult::Ok(make_string_array(vm, &parts));
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}
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};
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// SAFETY: fn_ptr holds a Box<regex::Regex> pointer stored by regexp_constructor.
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let regex = unsafe { &*(fn_ptr.as_ptr() as *const regex::Regex) };
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let raw: Vec<&str> = regex.split(&s).collect();
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let parts: Vec<String> = raw.iter().map(|p| p.to_string()).take(limit).collect();
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return NativeResult::Ok(make_string_array(vm, &parts));
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}
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let sep = as_string(vm, sep_val);
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let parts: Vec<String> = if sep.is_empty() {
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s.chars().map(|c| c.to_string()).take(limit).collect()
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} else {
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s.split(&sep).map(|p| p.to_string()).take(limit).collect()
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};
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NativeResult::Ok(make_string_array(vm, &parts))
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}
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pub fn string_replace(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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if args.len() < 2 {
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return NativeResult::Ok(vm.intern(&s));
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}
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let pattern_val = vm.reg(args[1]);
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let replacement = if args.len() > 2 { as_string(vm, vm.reg(args[2])) } else { String::new() };
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if is_regexp_obj(pattern_val, vm) {
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let re_ptr = pattern_val.as_js_object_ptr();
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let re = unsafe { &*re_ptr };
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let fn_ptr = match re.native_fn() {
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Some(p) => p,
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None => return NativeResult::Ok(vm.intern(&s)),
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};
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// SAFETY: fn_ptr holds a Box<regex::Regex> pointer stored by regexp_constructor.
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let regex = unsafe { &*(fn_ptr.as_ptr() as *const regex::Regex) };
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let result = regex.replace_all(&s, replacement.as_str()).to_string();
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return NativeResult::Ok(vm.intern(&result));
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}
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let pattern = as_string(vm, pattern_val);
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let result = s.replacen(&pattern, &replacement, 1);
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NativeResult::Ok(vm.intern(&result))
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}
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pub fn string_match_fn(vm: &mut Vm, args: &[u8]) -> NativeResult {
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let s = this_string(vm, args);
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if args.len() < 2 {
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return NativeResult::Ok(JsValue::undefined());
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}
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let pattern_val = vm.reg(args[1]);
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if is_regexp_obj(pattern_val, vm) {
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let re_ptr = pattern_val.as_js_object_ptr();
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let re = unsafe { &*re_ptr };
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let fn_ptr = match re.native_fn() {
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Some(p) => p,
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None => return NativeResult::Ok(JsValue::undefined()),
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};
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// SAFETY: fn_ptr holds a Box<regex::Regex> pointer stored by regexp_constructor.
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let regex = unsafe { &*(fn_ptr.as_ptr() as *const regex::Regex) };
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let matches: Vec<String> = regex.find_iter(&s).map(|m| m.as_str().to_string()).collect();
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return NativeResult::Ok(make_string_array(vm, &matches));
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}
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|
|
let pattern = as_string(vm, pattern_val);
|
|
if let Some(pos) = s.find(&pattern) {
|
|
return NativeResult::Ok(make_string_array(vm, &[s[pos..pos + pattern.len()].to_string()]));
|
|
}
|
|
NativeResult::Ok(JsValue::undefined())
|
|
}
|
|
|
|
pub fn string_search(vm: &mut Vm, args: &[u8]) -> NativeResult {
|
|
let s = this_string(vm, args);
|
|
if args.len() < 2 {
|
|
return NativeResult::Ok(JsValue::int(-1));
|
|
}
|
|
let pattern_val = vm.reg(args[1]);
|
|
|
|
if is_regexp_obj(pattern_val, vm) {
|
|
let re_ptr = pattern_val.as_js_object_ptr();
|
|
let re = unsafe { &*re_ptr };
|
|
let fn_ptr = match re.native_fn() {
|
|
Some(p) => p,
|
|
None => return NativeResult::Ok(JsValue::int(-1)),
|
|
};
|
|
// SAFETY: fn_ptr holds a Box<regex::Regex> pointer stored by regexp_constructor.
|
|
let regex = unsafe { &*(fn_ptr.as_ptr() as *const regex::Regex) };
|
|
if let Some(m) = regex.find(&s) {
|
|
return NativeResult::Ok(JsValue::int(m.start() as i32));
|
|
}
|
|
return NativeResult::Ok(JsValue::int(-1));
|
|
}
|
|
|
|
let pattern = as_string(vm, pattern_val);
|
|
if let Some(pos) = s.find(&pattern) {
|
|
return NativeResult::Ok(JsValue::int(pos as i32));
|
|
}
|
|
NativeResult::Ok(JsValue::int(-1))
|
|
}
|
|
|
|
pub fn string_trim_start(vm: &mut Vm, args: &[u8]) -> NativeResult {
|
|
let s = this_string(vm, args);
|
|
NativeResult::Ok(vm.intern(s.trim_start()))
|
|
}
|
|
|
|
pub fn string_trim_end(vm: &mut Vm, args: &[u8]) -> NativeResult {
|
|
let s = this_string(vm, args);
|
|
NativeResult::Ok(vm.intern(s.trim_end()))
|
|
}
|
|
|
|
pub fn string_code_point_at(vm: &mut Vm, args: &[u8]) -> NativeResult {
|
|
let s = this_string(vm, args);
|
|
let pos = if args.len() > 1 {
|
|
coercion::to_number(vm.reg(args[1]), vm.kernel_core().string_forge().as_ref()) as usize
|
|
} else {
|
|
0
|
|
};
|
|
let chars: Vec<char> = s.chars().collect();
|
|
if pos >= chars.len() {
|
|
return NativeResult::Ok(JsValue::undefined());
|
|
}
|
|
let c = chars[pos] as u32;
|
|
if (0xD800..=0xDBFF).contains(&c) && pos + 1 < chars.len() {
|
|
let next = chars[pos + 1] as u32;
|
|
if (0xDC00..=0xDFFF).contains(&next) {
|
|
let cp = 0x10000 + ((c - 0xD800) << 10) + (next - 0xDC00);
|
|
return NativeResult::Ok(JsValue::int(cp as i32));
|
|
}
|
|
}
|
|
NativeResult::Ok(JsValue::int(c as i32))
|
|
}
|
|
|
|
pub fn string_normalize(vm: &mut Vm, args: &[u8]) -> NativeResult {
|
|
use unicode_normalization::UnicodeNormalization;
|
|
let s = this_string(vm, args);
|
|
let form = if args.len() > 1 { as_string(vm, vm.reg(args[1])) } else { "NFC".to_string() };
|
|
let result: String = match form.as_str() {
|
|
"NFD" => s.nfd().collect(),
|
|
"NFKC" => s.nfkc().collect(),
|
|
"NFKD" => s.nfkd().collect(),
|
|
_ => s.nfc().collect(),
|
|
};
|
|
NativeResult::Ok(vm.intern(&result))
|
|
}
|
|
|
|
pub fn string_match_all(vm: &mut Vm, args: &[u8]) -> NativeResult {
|
|
let s = this_string(vm, args);
|
|
if args.len() < 2 {
|
|
return NativeResult::Err(JsValue::undefined());
|
|
}
|
|
let pattern_val = vm.reg(args[1]);
|
|
if is_regexp_obj(pattern_val, vm) {
|
|
let re_ptr = pattern_val.as_js_object_ptr();
|
|
let re = unsafe { &*re_ptr };
|
|
let fn_ptr = match re.native_fn() {
|
|
Some(p) => p,
|
|
None => return NativeResult::Ok(JsValue::undefined()),
|
|
};
|
|
// SAFETY: fn_ptr holds a Box<regex::Regex> pointer stored by regexp_constructor.
|
|
let regex = unsafe { &*(fn_ptr.as_ptr() as *const regex::Regex) };
|
|
let matches: Vec<String> = regex.find_iter(&s).map(|m| m.as_str().to_string()).collect();
|
|
return NativeResult::Ok(make_string_array(vm, &matches));
|
|
}
|
|
NativeResult::Ok(JsValue::undefined())
|
|
}
|
|
|
|
pub fn string_replace_all(vm: &mut Vm, args: &[u8]) -> NativeResult {
|
|
let s = this_string(vm, args);
|
|
if args.len() < 2 {
|
|
return NativeResult::Ok(vm.intern(&s));
|
|
}
|
|
let pattern_val = vm.reg(args[1]);
|
|
let replacement = if args.len() > 2 { as_string(vm, vm.reg(args[2])) } else { String::new() };
|
|
if is_regexp_obj(pattern_val, vm) {
|
|
let re_ptr = pattern_val.as_js_object_ptr();
|
|
let re = unsafe { &*re_ptr };
|
|
let fn_ptr = match re.native_fn() {
|
|
Some(p) => p,
|
|
None => return NativeResult::Ok(vm.intern(&s)),
|
|
};
|
|
// SAFETY: fn_ptr holds a Box<regex::Regex> pointer stored by regexp_constructor.
|
|
let regex = unsafe { &*(fn_ptr.as_ptr() as *const regex::Regex) };
|
|
let result = regex.replace_all(&s, replacement.as_str()).to_string();
|
|
return NativeResult::Ok(vm.intern(&result));
|
|
}
|
|
let pattern = as_string(vm, pattern_val);
|
|
let result = s.replace(&pattern, &replacement);
|
|
NativeResult::Ok(vm.intern(&result))
|
|
}
|