affc479e83
Objects should get the GlobalObject from themselves instead. However, it's not yet available during construction so this only switches code that happens after construction. To support multiple global objects, Interpreter needs to stop holding on to "the" global object and let each object graph own their global.
128 lines
4.7 KiB
C++
128 lines
4.7 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/StringBuilder.h>
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#include <AK/Utf32View.h>
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#include <LibJS/Interpreter.h>
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#include <LibJS/Runtime/Array.h>
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#include <LibJS/Runtime/Error.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/StringConstructor.h>
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#include <LibJS/Runtime/StringObject.h>
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namespace JS {
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StringConstructor::StringConstructor()
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: NativeFunction("String", *interpreter().global_object().function_prototype())
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{
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define_property("prototype", interpreter().global_object().string_prototype(), 0);
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define_property("length", Value(1), Attribute::Configurable);
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function("raw", raw, 0, attr);
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define_native_function("fromCharCode", from_char_code, 1, attr);
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}
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StringConstructor::~StringConstructor()
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{
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}
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Value StringConstructor::call(Interpreter& interpreter)
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{
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if (!interpreter.argument_count())
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return js_string(interpreter, "");
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auto* string = interpreter.argument(0).to_primitive_string(interpreter);
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if (interpreter.exception())
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return {};
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return string;
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}
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Value StringConstructor::construct(Interpreter& interpreter)
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{
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PrimitiveString* primitive_string = nullptr;
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if (!interpreter.argument_count())
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primitive_string = js_string(interpreter, "");
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else
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primitive_string = interpreter.argument(0).to_primitive_string(interpreter);
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if (!primitive_string)
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return {};
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return StringObject::create(global_object(), *primitive_string);
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}
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Value StringConstructor::raw(Interpreter& interpreter)
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{
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auto* template_object = interpreter.argument(0).to_object(interpreter);
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if (interpreter.exception())
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return {};
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auto raw = template_object->get("raw");
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if (interpreter.exception())
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return {};
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if (raw.is_empty() || raw.is_undefined() || raw.is_null()) {
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interpreter.throw_exception<TypeError>(String::format("Cannot convert property 'raw' to object from %s", raw.is_null() ? "null" : "undefined"));
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return {};
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}
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if (!raw.is_array())
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return js_string(interpreter, "");
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auto* array = static_cast<Array*>(raw.to_object(interpreter));
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auto& raw_array_elements = array->indexed_properties();
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StringBuilder builder;
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for (size_t i = 0; i < raw_array_elements.array_like_size(); ++i) {
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auto result = raw_array_elements.get(array, i);
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if (interpreter.exception())
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return {};
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if (!result.has_value())
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continue;
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builder.append(result.value().value.to_string(interpreter));
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if (interpreter.exception())
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return {};
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if (i + 1 < interpreter.argument_count() && i < raw_array_elements.array_like_size() - 1) {
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builder.append(interpreter.argument(i + 1).to_string(interpreter));
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if (interpreter.exception())
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return {};
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}
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}
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return js_string(interpreter, builder.build());
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}
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Value StringConstructor::from_char_code(Interpreter& interpreter)
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{
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StringBuilder builder;
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for (size_t i = 0; i < interpreter.argument_count(); ++i) {
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auto char_code = interpreter.argument(i).to_i32(interpreter);
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if (interpreter.exception())
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return {};
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auto truncated = char_code & 0xffff;
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// FIXME: We need an Utf16View :^)
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builder.append(Utf32View((u32*)&truncated, 1));
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}
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return js_string(interpreter, builder.build());
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}
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}
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