mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 04:42:44 +00:00
65717e3b75
These functions all have a very common case that can be dealt with a very simple inline check, often avoiding the need to call an out-of-line function. This patch moves the common case to inline functions in a new ValueInlines.h header (necessary due to header dependency issues..) 8% speed-up on the entire Kraken benchmark :^)
707 lines
24 KiB
C++
707 lines
24 KiB
C++
/*
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* Copyright (c) 2020, Emanuele Torre <torreemanuele6@gmail.com>
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* Copyright (c) 2020-2023, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/MemoryStream.h>
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#include <AK/StringBuilder.h>
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#include <LibJS/Console.h>
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#include <LibJS/Print.h>
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#include <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/StringConstructor.h>
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#include <LibJS/Runtime/Temporal/Duration.h>
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#include <LibJS/Runtime/ValueInlines.h>
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namespace JS {
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Console::Console(Realm& realm)
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: m_realm(realm)
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{
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}
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// 1.1.1. assert(condition, ...data), https://console.spec.whatwg.org/#assert
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ThrowCompletionOr<Value> Console::assert_()
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{
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auto& vm = realm().vm();
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// 1. If condition is true, return.
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auto condition = vm.argument(0).to_boolean();
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if (condition)
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return js_undefined();
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// 2. Let message be a string without any formatting specifiers indicating generically an assertion failure (such as "Assertion failed").
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auto message = PrimitiveString::create(vm, "Assertion failed"_string);
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// NOTE: Assemble `data` from the function arguments.
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MarkedVector<Value> data { vm.heap() };
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if (vm.argument_count() > 1) {
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data.ensure_capacity(vm.argument_count() - 1);
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for (size_t i = 1; i < vm.argument_count(); ++i) {
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data.append(vm.argument(i));
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}
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}
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// 3. If data is empty, append message to data.
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if (data.is_empty()) {
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data.append(message);
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}
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// 4. Otherwise:
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else {
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// 1. Let first be data[0].
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auto& first = data[0];
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// 2. If Type(first) is not String, then prepend message to data.
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if (!first.is_string()) {
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data.prepend(message);
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}
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// 3. Otherwise:
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else {
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// 1. Let concat be the concatenation of message, U+003A (:), U+0020 SPACE, and first.
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auto concat = TRY_OR_THROW_OOM(vm, String::formatted("{}: {}", message->utf8_string(), MUST(first.to_string(vm))));
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// 2. Set data[0] to concat.
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data[0] = PrimitiveString::create(vm, move(concat));
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}
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}
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// 5. Perform Logger("assert", data).
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if (m_client)
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TRY(m_client->logger(LogLevel::Assert, data));
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return js_undefined();
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}
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// 1.1.2. clear(), https://console.spec.whatwg.org/#clear
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Value Console::clear()
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{
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// 1. Empty the appropriate group stack.
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m_group_stack.clear();
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// 2. If possible for the environment, clear the console. (Otherwise, do nothing.)
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if (m_client)
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m_client->clear();
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return js_undefined();
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}
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// 1.1.3. debug(...data), https://console.spec.whatwg.org/#debug
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ThrowCompletionOr<Value> Console::debug()
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{
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// 1. Perform Logger("debug", data).
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if (m_client) {
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auto data = vm_arguments();
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return m_client->logger(LogLevel::Debug, data);
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}
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return js_undefined();
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}
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// 1.1.4. error(...data), https://console.spec.whatwg.org/#error
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ThrowCompletionOr<Value> Console::error()
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{
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// 1. Perform Logger("error", data).
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if (m_client) {
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auto data = vm_arguments();
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return m_client->logger(LogLevel::Error, data);
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}
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return js_undefined();
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}
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// 1.1.5. info(...data), https://console.spec.whatwg.org/#info
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ThrowCompletionOr<Value> Console::info()
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{
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// 1. Perform Logger("info", data).
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if (m_client) {
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auto data = vm_arguments();
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return m_client->logger(LogLevel::Info, data);
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}
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return js_undefined();
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}
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// 1.1.6. log(...data), https://console.spec.whatwg.org/#log
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ThrowCompletionOr<Value> Console::log()
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{
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// 1. Perform Logger("log", data).
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if (m_client) {
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auto data = vm_arguments();
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return m_client->logger(LogLevel::Log, data);
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}
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return js_undefined();
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}
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// 1.1.8. trace(...data), https://console.spec.whatwg.org/#trace
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ThrowCompletionOr<Value> Console::trace()
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{
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if (!m_client)
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return js_undefined();
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auto& vm = realm().vm();
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// 1. Let trace be some implementation-specific, potentially-interactive representation of the callstack from where this function was called.
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Console::Trace trace;
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auto& execution_context_stack = vm.execution_context_stack();
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// NOTE: -2 to skip the console.trace() execution context
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for (ssize_t i = execution_context_stack.size() - 2; i >= 0; --i) {
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auto const& function_name = execution_context_stack[i]->function_name;
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trace.stack.append(function_name.is_empty()
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? "<anonymous>"_string
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: TRY_OR_THROW_OOM(vm, String::from_deprecated_string(function_name)));
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}
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// 2. Optionally, let formattedData be the result of Formatter(data), and incorporate formattedData as a label for trace.
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if (vm.argument_count() > 0) {
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auto data = vm_arguments();
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auto formatted_data = TRY(m_client->formatter(data));
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trace.label = TRY(value_vector_to_string(formatted_data));
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}
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// 3. Perform Printer("trace", « trace »).
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return m_client->printer(Console::LogLevel::Trace, trace);
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}
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// 1.1.9. warn(...data), https://console.spec.whatwg.org/#warn
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ThrowCompletionOr<Value> Console::warn()
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{
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// 1. Perform Logger("warn", data).
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if (m_client) {
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auto data = vm_arguments();
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return m_client->logger(LogLevel::Warn, data);
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}
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return js_undefined();
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}
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// 1.1.10. dir(item, options), https://console.spec.whatwg.org/#dir
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ThrowCompletionOr<Value> Console::dir()
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{
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auto& vm = realm().vm();
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// 1. Let object be item with generic JavaScript object formatting applied.
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// NOTE: Generic formatting is performed by ConsoleClient::printer().
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auto object = vm.argument(0);
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// 2. Perform Printer("dir", « object », options).
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if (m_client) {
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MarkedVector<Value> printer_arguments { vm.heap() };
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TRY_OR_THROW_OOM(vm, printer_arguments.try_append(object));
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return m_client->printer(LogLevel::Dir, move(printer_arguments));
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}
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return js_undefined();
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}
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static ThrowCompletionOr<String> label_or_fallback(VM& vm, StringView fallback)
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{
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return vm.argument_count() > 0
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? vm.argument(0).to_string(vm)
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: TRY_OR_THROW_OOM(vm, String::from_utf8(fallback));
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}
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// 1.2.1. count(label), https://console.spec.whatwg.org/#count
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ThrowCompletionOr<Value> Console::count()
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{
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auto& vm = realm().vm();
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// NOTE: "default" is the default value in the IDL. https://console.spec.whatwg.org/#ref-for-count
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auto label = TRY(label_or_fallback(vm, "default"sv));
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// 1. Let map be the associated count map.
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auto& map = m_counters;
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// 2. If map[label] exists, set map[label] to map[label] + 1.
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if (auto found = map.find(label); found != map.end()) {
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map.set(label, found->value + 1);
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}
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// 3. Otherwise, set map[label] to 1.
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else {
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map.set(label, 1);
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}
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// 4. Let concat be the concatenation of label, U+003A (:), U+0020 SPACE, and ToString(map[label]).
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auto concat = TRY_OR_THROW_OOM(vm, String::formatted("{}: {}", label, map.get(label).value()));
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// 5. Perform Logger("count", « concat »).
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MarkedVector<Value> concat_as_vector { vm.heap() };
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concat_as_vector.append(PrimitiveString::create(vm, move(concat)));
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if (m_client)
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TRY(m_client->logger(LogLevel::Count, concat_as_vector));
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return js_undefined();
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}
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// 1.2.2. countReset(label), https://console.spec.whatwg.org/#countreset
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ThrowCompletionOr<Value> Console::count_reset()
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{
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auto& vm = realm().vm();
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// NOTE: "default" is the default value in the IDL. https://console.spec.whatwg.org/#ref-for-countreset
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auto label = TRY(label_or_fallback(vm, "default"sv));
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// 1. Let map be the associated count map.
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auto& map = m_counters;
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// 2. If map[label] exists, set map[label] to 0.
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if (auto found = map.find(label); found != map.end()) {
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map.set(label, 0);
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}
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// 3. Otherwise:
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else {
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// 1. Let message be a string without any formatting specifiers indicating generically
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// that the given label does not have an associated count.
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auto message = TRY_OR_THROW_OOM(vm, String::formatted("\"{}\" doesn't have a count", label));
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// 2. Perform Logger("countReset", « message »);
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MarkedVector<Value> message_as_vector { vm.heap() };
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message_as_vector.append(PrimitiveString::create(vm, move(message)));
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if (m_client)
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TRY(m_client->logger(LogLevel::CountReset, message_as_vector));
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}
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return js_undefined();
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}
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// 1.3.1. group(...data), https://console.spec.whatwg.org/#group
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ThrowCompletionOr<Value> Console::group()
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{
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// 1. Let group be a new group.
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Group group;
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// 2. If data is not empty, let groupLabel be the result of Formatter(data).
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String group_label {};
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auto data = vm_arguments();
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if (!data.is_empty()) {
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auto formatted_data = TRY(m_client->formatter(data));
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group_label = TRY(value_vector_to_string(formatted_data));
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}
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// ... Otherwise, let groupLabel be an implementation-chosen label representing a group.
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else {
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group_label = "Group"_string;
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}
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// 3. Incorporate groupLabel as a label for group.
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group.label = group_label;
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// 4. Optionally, if the environment supports interactive groups, group should be expanded by default.
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// NOTE: This is handled in Printer.
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// 5. Perform Printer("group", « group »).
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if (m_client)
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TRY(m_client->printer(LogLevel::Group, group));
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// 6. Push group onto the appropriate group stack.
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m_group_stack.append(group);
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return js_undefined();
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}
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// 1.3.2. groupCollapsed(...data), https://console.spec.whatwg.org/#groupcollapsed
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ThrowCompletionOr<Value> Console::group_collapsed()
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{
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// 1. Let group be a new group.
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Group group;
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// 2. If data is not empty, let groupLabel be the result of Formatter(data).
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String group_label {};
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auto data = vm_arguments();
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if (!data.is_empty()) {
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auto formatted_data = TRY(m_client->formatter(data));
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group_label = TRY(value_vector_to_string(formatted_data));
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}
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// ... Otherwise, let groupLabel be an implementation-chosen label representing a group.
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else {
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group_label = "Group"_string;
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}
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// 3. Incorporate groupLabel as a label for group.
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group.label = group_label;
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// 4. Optionally, if the environment supports interactive groups, group should be collapsed by default.
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// NOTE: This is handled in Printer.
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// 5. Perform Printer("groupCollapsed", « group »).
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if (m_client)
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TRY(m_client->printer(LogLevel::GroupCollapsed, group));
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// 6. Push group onto the appropriate group stack.
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m_group_stack.append(group);
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return js_undefined();
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}
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// 1.3.3. groupEnd(), https://console.spec.whatwg.org/#groupend
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ThrowCompletionOr<Value> Console::group_end()
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{
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if (m_group_stack.is_empty())
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return js_undefined();
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// 1. Pop the last group from the group stack.
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m_group_stack.take_last();
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if (m_client)
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m_client->end_group();
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return js_undefined();
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}
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// 1.4.1. time(label), https://console.spec.whatwg.org/#time
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ThrowCompletionOr<Value> Console::time()
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{
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auto& vm = realm().vm();
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// NOTE: "default" is the default value in the IDL. https://console.spec.whatwg.org/#ref-for-time
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auto label = TRY(label_or_fallback(vm, "default"sv));
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// 1. If the associated timer table contains an entry with key label, return, optionally reporting
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// a warning to the console indicating that a timer with label `label` has already been started.
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if (m_timer_table.contains(label)) {
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if (m_client) {
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MarkedVector<Value> timer_already_exists_warning_message_as_vector { vm.heap() };
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auto message = TRY_OR_THROW_OOM(vm, String::formatted("Timer '{}' already exists.", label));
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timer_already_exists_warning_message_as_vector.append(PrimitiveString::create(vm, move(message)));
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TRY(m_client->printer(LogLevel::Warn, move(timer_already_exists_warning_message_as_vector)));
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}
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return js_undefined();
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}
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// 2. Otherwise, set the value of the entry with key label in the associated timer table to the current time.
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m_timer_table.set(label, Core::ElapsedTimer::start_new());
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return js_undefined();
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}
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// 1.4.2. timeLog(label, ...data), https://console.spec.whatwg.org/#timelog
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ThrowCompletionOr<Value> Console::time_log()
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{
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auto& vm = realm().vm();
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// NOTE: "default" is the default value in the IDL. https://console.spec.whatwg.org/#ref-for-timelog
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auto label = TRY(label_or_fallback(vm, "default"sv));
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// 1. Let timerTable be the associated timer table.
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// 2. Let startTime be timerTable[label].
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auto maybe_start_time = m_timer_table.find(label);
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// NOTE: Warn if the timer doesn't exist. Not part of the spec yet, but discussed here: https://github.com/whatwg/console/issues/134
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if (maybe_start_time == m_timer_table.end()) {
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if (m_client) {
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MarkedVector<Value> timer_does_not_exist_warning_message_as_vector { vm.heap() };
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auto message = TRY_OR_THROW_OOM(vm, String::formatted("Timer '{}' does not exist.", label));
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timer_does_not_exist_warning_message_as_vector.append(PrimitiveString::create(vm, move(message)));
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TRY(m_client->printer(LogLevel::Warn, move(timer_does_not_exist_warning_message_as_vector)));
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}
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return js_undefined();
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}
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auto start_time = maybe_start_time->value;
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// 3. Let duration be a string representing the difference between the current time and startTime, in an implementation-defined format.
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auto duration = TRY(format_time_since(start_time));
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// 4. Let concat be the concatenation of label, U+003A (:), U+0020 SPACE, and duration.
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auto concat = TRY_OR_THROW_OOM(vm, String::formatted("{}: {}", label, duration));
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// 5. Prepend concat to data.
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MarkedVector<Value> data { vm.heap() };
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data.ensure_capacity(vm.argument_count());
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data.append(PrimitiveString::create(vm, move(concat)));
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for (size_t i = 1; i < vm.argument_count(); ++i)
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data.append(vm.argument(i));
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// 6. Perform Printer("timeLog", data).
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if (m_client)
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TRY(m_client->printer(LogLevel::TimeLog, move(data)));
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return js_undefined();
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}
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// 1.4.3. timeEnd(label), https://console.spec.whatwg.org/#timeend
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ThrowCompletionOr<Value> Console::time_end()
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{
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auto& vm = realm().vm();
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// NOTE: "default" is the default value in the IDL. https://console.spec.whatwg.org/#ref-for-timeend
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auto label = TRY(label_or_fallback(vm, "default"sv));
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// 1. Let timerTable be the associated timer table.
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// 2. Let startTime be timerTable[label].
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auto maybe_start_time = m_timer_table.find(label);
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// NOTE: Warn if the timer doesn't exist. Not part of the spec yet, but discussed here: https://github.com/whatwg/console/issues/134
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if (maybe_start_time == m_timer_table.end()) {
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if (m_client) {
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MarkedVector<Value> timer_does_not_exist_warning_message_as_vector { vm.heap() };
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auto message = TRY_OR_THROW_OOM(vm, String::formatted("Timer '{}' does not exist.", label));
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timer_does_not_exist_warning_message_as_vector.append(PrimitiveString::create(vm, move(message)));
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TRY(m_client->printer(LogLevel::Warn, move(timer_does_not_exist_warning_message_as_vector)));
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}
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return js_undefined();
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}
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auto start_time = maybe_start_time->value;
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// 3. Remove timerTable[label].
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m_timer_table.remove(label);
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// 4. Let duration be a string representing the difference between the current time and startTime, in an implementation-defined format.
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auto duration = TRY(format_time_since(start_time));
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// 5. Let concat be the concatenation of label, U+003A (:), U+0020 SPACE, and duration.
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auto concat = TRY_OR_THROW_OOM(vm, String::formatted("{}: {}", label, duration));
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// 6. Perform Printer("timeEnd", « concat »).
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if (m_client) {
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MarkedVector<Value> concat_as_vector { vm.heap() };
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concat_as_vector.append(PrimitiveString::create(vm, move(concat)));
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TRY(m_client->printer(LogLevel::TimeEnd, move(concat_as_vector)));
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}
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return js_undefined();
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}
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MarkedVector<Value> Console::vm_arguments()
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{
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auto& vm = realm().vm();
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MarkedVector<Value> arguments { vm.heap() };
|
||
arguments.ensure_capacity(vm.argument_count());
|
||
for (size_t i = 0; i < vm.argument_count(); ++i) {
|
||
arguments.append(vm.argument(i));
|
||
}
|
||
return arguments;
|
||
}
|
||
|
||
void Console::output_debug_message(LogLevel log_level, String const& output) const
|
||
{
|
||
switch (log_level) {
|
||
case Console::LogLevel::Debug:
|
||
dbgln("\033[32;1m(js debug)\033[0m {}", output);
|
||
break;
|
||
case Console::LogLevel::Error:
|
||
dbgln("\033[32;1m(js error)\033[0m {}", output);
|
||
break;
|
||
case Console::LogLevel::Info:
|
||
dbgln("\033[32;1m(js info)\033[0m {}", output);
|
||
break;
|
||
case Console::LogLevel::Log:
|
||
dbgln("\033[32;1m(js log)\033[0m {}", output);
|
||
break;
|
||
case Console::LogLevel::Warn:
|
||
dbgln("\033[32;1m(js warn)\033[0m {}", output);
|
||
break;
|
||
default:
|
||
dbgln("\033[32;1m(js)\033[0m {}", output);
|
||
break;
|
||
}
|
||
}
|
||
|
||
void Console::report_exception(JS::Error const& exception, bool in_promise) const
|
||
{
|
||
if (m_client)
|
||
m_client->report_exception(exception, in_promise);
|
||
}
|
||
|
||
ThrowCompletionOr<String> Console::value_vector_to_string(MarkedVector<Value> const& values)
|
||
{
|
||
auto& vm = realm().vm();
|
||
StringBuilder builder;
|
||
|
||
for (auto const& item : values) {
|
||
if (!builder.is_empty())
|
||
builder.append(' ');
|
||
|
||
builder.append(TRY(item.to_string(vm)));
|
||
}
|
||
|
||
return MUST(builder.to_string());
|
||
}
|
||
|
||
ThrowCompletionOr<String> Console::format_time_since(Core::ElapsedTimer timer)
|
||
{
|
||
auto& vm = realm().vm();
|
||
|
||
auto elapsed_ms = timer.elapsed_time().to_milliseconds();
|
||
auto duration = TRY(Temporal::balance_duration(vm, 0, 0, 0, 0, elapsed_ms, 0, "0"_sbigint, "year"sv));
|
||
|
||
auto append = [&](auto& builder, auto format, auto number) {
|
||
if (!builder.is_empty())
|
||
builder.append(' ');
|
||
builder.appendff(format, number);
|
||
};
|
||
|
||
StringBuilder builder;
|
||
|
||
if (duration.days > 0)
|
||
append(builder, "{:.0} day(s)"sv, duration.days);
|
||
if (duration.hours > 0)
|
||
append(builder, "{:.0} hour(s)"sv, duration.hours);
|
||
if (duration.minutes > 0)
|
||
append(builder, "{:.0} minute(s)"sv, duration.minutes);
|
||
if (duration.seconds > 0 || duration.milliseconds > 0) {
|
||
double combined_seconds = duration.seconds + (0.001 * duration.milliseconds);
|
||
append(builder, "{:.3} seconds"sv, combined_seconds);
|
||
}
|
||
|
||
return MUST(builder.to_string());
|
||
}
|
||
|
||
// 2.1. Logger(logLevel, args), https://console.spec.whatwg.org/#logger
|
||
ThrowCompletionOr<Value> ConsoleClient::logger(Console::LogLevel log_level, MarkedVector<Value> const& args)
|
||
{
|
||
auto& vm = m_console.realm().vm();
|
||
|
||
// 1. If args is empty, return.
|
||
if (args.is_empty())
|
||
return js_undefined();
|
||
|
||
// 2. Let first be args[0].
|
||
auto first = args[0];
|
||
|
||
// 3. Let rest be all elements following first in args.
|
||
size_t rest_size = args.size() - 1;
|
||
|
||
// 4. If rest is empty, perform Printer(logLevel, « first ») and return.
|
||
if (rest_size == 0) {
|
||
MarkedVector<Value> first_as_vector { vm.heap() };
|
||
first_as_vector.append(first);
|
||
return printer(log_level, move(first_as_vector));
|
||
}
|
||
|
||
// 5. Otherwise, perform Printer(logLevel, Formatter(args)).
|
||
else {
|
||
auto formatted = TRY(formatter(args));
|
||
TRY(printer(log_level, formatted));
|
||
}
|
||
|
||
// 6. Return undefined.
|
||
return js_undefined();
|
||
}
|
||
|
||
// 2.2. Formatter(args), https://console.spec.whatwg.org/#formatter
|
||
ThrowCompletionOr<MarkedVector<Value>> ConsoleClient::formatter(MarkedVector<Value> const& args)
|
||
{
|
||
auto& realm = m_console.realm();
|
||
auto& vm = realm.vm();
|
||
|
||
// 1. If args’s size is 1, return args.
|
||
if (args.size() == 1)
|
||
return args;
|
||
|
||
// 2. Let target be the first element of args.
|
||
auto target = (!args.is_empty()) ? TRY(args.first().to_string(vm)) : String {};
|
||
|
||
// 3. Let current be the second element of args.
|
||
auto current = (args.size() > 1) ? args[1] : js_undefined();
|
||
|
||
// 4. Find the first possible format specifier specifier, from the left to the right in target.
|
||
auto find_specifier = [](StringView target) -> Optional<StringView> {
|
||
size_t start_index = 0;
|
||
while (start_index < target.length()) {
|
||
auto maybe_index = target.find('%');
|
||
if (!maybe_index.has_value())
|
||
return {};
|
||
|
||
auto index = maybe_index.value();
|
||
if (index + 1 >= target.length())
|
||
return {};
|
||
|
||
switch (target[index + 1]) {
|
||
case 'c':
|
||
case 'd':
|
||
case 'f':
|
||
case 'i':
|
||
case 'o':
|
||
case 'O':
|
||
case 's':
|
||
return target.substring_view(index, 2);
|
||
}
|
||
|
||
start_index = index + 1;
|
||
}
|
||
return {};
|
||
};
|
||
auto maybe_specifier = find_specifier(target);
|
||
|
||
// 5. If no format specifier was found, return args.
|
||
if (!maybe_specifier.has_value()) {
|
||
return args;
|
||
}
|
||
// 6. Otherwise:
|
||
else {
|
||
auto specifier = maybe_specifier.release_value();
|
||
Optional<Value> converted;
|
||
|
||
// 1. If specifier is %s, let converted be the result of Call(%String%, undefined, « current »).
|
||
if (specifier == "%s"sv) {
|
||
converted = TRY(call(vm, *realm.intrinsics().string_constructor(), js_undefined(), current));
|
||
}
|
||
// 2. If specifier is %d or %i:
|
||
else if (specifier.is_one_of("%d"sv, "%i"sv)) {
|
||
// 1. If Type(current) is Symbol, let converted be NaN
|
||
if (current.is_symbol()) {
|
||
converted = js_nan();
|
||
}
|
||
// 2. Otherwise, let converted be the result of Call(%parseInt%, undefined, « current, 10 »).
|
||
else {
|
||
converted = TRY(call(vm, *realm.intrinsics().parse_int_function(), js_undefined(), current, Value { 10 }));
|
||
}
|
||
}
|
||
// 3. If specifier is %f:
|
||
else if (specifier == "%f"sv) {
|
||
// 1. If Type(current) is Symbol, let converted be NaN
|
||
if (current.is_symbol()) {
|
||
converted = js_nan();
|
||
}
|
||
// 2. Otherwise, let converted be the result of Call(% parseFloat %, undefined, « current »).
|
||
else {
|
||
converted = TRY(call(vm, *realm.intrinsics().parse_float_function(), js_undefined(), current));
|
||
}
|
||
}
|
||
// 4. If specifier is %o, optionally let converted be current with optimally useful formatting applied.
|
||
else if (specifier == "%o"sv) {
|
||
// TODO: "Optimally-useful formatting"
|
||
converted = current;
|
||
}
|
||
// 5. If specifier is %O, optionally let converted be current with generic JavaScript object formatting applied.
|
||
else if (specifier == "%O"sv) {
|
||
// TODO: "generic JavaScript object formatting"
|
||
converted = current;
|
||
}
|
||
// 6. TODO: process %c
|
||
else if (specifier == "%c"sv) {
|
||
// NOTE: This has no spec yet. `%c` specifiers treat the argument as CSS styling for the log message.
|
||
add_css_style_to_current_message(TRY(current.to_string(vm)));
|
||
converted = PrimitiveString::create(vm, String {});
|
||
}
|
||
|
||
// 7. If any of the previous steps set converted, replace specifier in target with converted.
|
||
if (converted.has_value())
|
||
target = TRY_OR_THROW_OOM(vm, target.replace(specifier, TRY(converted->to_string(vm)), ReplaceMode::FirstOnly));
|
||
}
|
||
|
||
// 7. Let result be a list containing target together with the elements of args starting from the third onward.
|
||
MarkedVector<Value> result { vm.heap() };
|
||
result.ensure_capacity(args.size() - 1);
|
||
result.empend(PrimitiveString::create(vm, move(target)));
|
||
for (size_t i = 2; i < args.size(); ++i)
|
||
result.unchecked_append(args[i]);
|
||
|
||
// 8. Return Formatter(result).
|
||
return formatter(result);
|
||
}
|
||
|
||
ThrowCompletionOr<String> ConsoleClient::generically_format_values(MarkedVector<Value> const& values)
|
||
{
|
||
AllocatingMemoryStream stream;
|
||
auto& vm = m_console.realm().vm();
|
||
PrintContext ctx { vm, stream, true };
|
||
bool first = true;
|
||
for (auto const& value : values) {
|
||
if (!first)
|
||
TRY_OR_THROW_OOM(vm, stream.write_until_depleted(" "sv.bytes()));
|
||
TRY_OR_THROW_OOM(vm, JS::print(value, ctx));
|
||
first = false;
|
||
}
|
||
// FIXME: Is it possible we could end up serializing objects to invalid UTF-8?
|
||
return TRY_OR_THROW_OOM(vm, String::from_stream(stream, stream.used_buffer_size()));
|
||
}
|
||
|
||
}
|