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LibJS: Remove ByteString internals from PrimitiveString

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PrimitiveString is now internally either UTF-8, UTF-16, or both.
We no longer convert them to/from ByteString anywhere, nor does VM have
a ByteString cache.
This commit is contained in:
Andreas Kling 2025-03-28 13:55:39 +00:00 • committed by Tim Flynn
commit c71772126f
Notes: github-actions[bot] 2025-03-28 16:32:54 +00:00
14 changed files with 49 additions and 118 deletions
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16
Libraries/LibJS/Runtime/Value.cpp
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@ -724,7 +724,7 @@ ThrowCompletionOr<Value> Value::to_number_slow_case(VM& vm) const
return Value(as_bool() ? 1 : 0);
// 6. If argument is a String, return StringToNumber(argument).
case STRING_TAG:
return string_to_number(as_string().byte_string());
return string_to_number(as_string().utf8_string_view());
// 7. Assert: argument is an Object.
case OBJECT_TAG: {
// 8. Let primValue be ? ToPrimitive(argument, number).
@ -778,7 +778,7 @@ ThrowCompletionOr<GC::Ref<BigInt>> Value::to_bigint(VM& vm) const
return primitive.as_bigint();
case STRING_TAG: {
// 1. Let n be ! StringToBigInt(prim).
auto bigint = string_to_bigint(vm, primitive.as_string().byte_string());
auto bigint = string_to_bigint(vm, primitive.as_string().utf8_string_view());
// 2. If n is undefined, throw a SyntaxError exception.
if (!bigint.has_value())
@ -2226,7 +2226,7 @@ bool same_value_non_number(Value lhs, Value rhs)
// 5. If x is a String, then
if (lhs.is_string()) {
// a. If x and y are exactly the same sequence of code units (same length and same code units at corresponding indices), return true; otherwise, return false.
return lhs.as_string().byte_string() == rhs.as_string().byte_string();
return lhs.as_string().utf8_string_view() == rhs.as_string().utf8_string_view();
}
// 3. If x is undefined, return true.
@ -2307,7 +2307,7 @@ ThrowCompletionOr<bool> is_loosely_equal(VM& vm, Value lhs, Value rhs)
// 7. If Type(x) is BigInt and Type(y) is String, then
if (lhs.is_bigint() && rhs.is_string()) {
// a. Let n be StringToBigInt(y).
auto bigint = string_to_bigint(vm, rhs.as_string().byte_string());
auto bigint = string_to_bigint(vm, rhs.as_string().utf8_string_view());
// b. If n is undefined, return false.
if (!bigint.has_value())
@ -2388,8 +2388,8 @@ ThrowCompletionOr<TriState> is_less_than(VM& vm, Value lhs, Value rhs, bool left
// 3. If px is a String and py is a String, then
if (x_primitive.is_string() && y_primitive.is_string()) {
auto x_string = x_primitive.as_string().byte_string();
auto y_string = y_primitive.as_string().byte_string();
auto x_string = x_primitive.as_string().utf8_string_view();
auto y_string = y_primitive.as_string().utf8_string_view();
Utf8View x_code_points { x_string };
Utf8View y_code_points { y_string };
@ -2424,7 +2424,7 @@ ThrowCompletionOr<TriState> is_less_than(VM& vm, Value lhs, Value rhs, bool left
// a. If px is a BigInt and py is a String, then
if (x_primitive.is_bigint() && y_primitive.is_string()) {
// i. Let ny be StringToBigInt(py).
auto y_bigint = string_to_bigint(vm, y_primitive.as_string().byte_string());
auto y_bigint = string_to_bigint(vm, y_primitive.as_string().utf8_string_view());
// ii. If ny is undefined, return undefined.
if (!y_bigint.has_value())
@ -2439,7 +2439,7 @@ ThrowCompletionOr<TriState> is_less_than(VM& vm, Value lhs, Value rhs, bool left
// b. If px is a String and py is a BigInt, then
if (x_primitive.is_string() && y_primitive.is_bigint()) {
// i. Let nx be StringToBigInt(px).
auto x_bigint = string_to_bigint(vm, x_primitive.as_string().byte_string());
auto x_bigint = string_to_bigint(vm, x_primitive.as_string().utf8_string_view());
// ii. If nx is undefined, return undefined.
if (!x_bigint.has_value())