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LibJS: Convert MarkupGenerator to the new String

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This commit is contained in:
Linus Groh 2022-12-06 20:42:59 +00:00
parent f23b55ae86
commit 112b3f7342
Notes: sideshowbarker 2024-07-17 07:35:03 +09:00 
Author: https://github.com/linusg
Commit: https://github.com/SerenityOS/serenity/commit/112b3f7342
Pull-request: https://github.com/SerenityOS/serenity/pull/16341
Reviewed-by: https://github.com/davidot ✅
5 changed files with 92 additions and 85 deletions
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2
Userland/Applications/Browser/ConsoleWidget.cpp
View File

@ -133,7 +133,7 @@ void ConsoleWidget::print_source_line(StringView source)
html.append("> "sv);
html.append("</span>"sv);
html.append(JS::MarkupGenerator::html_from_source(source));
html.append(JS::MarkupGenerator::html_from_source(source).release_value_but_fixme_should_propagate_errors());
print_html(html.string_view());
}

141
Userland/Libraries/LibJS/MarkupGenerator.cpp
View File

@ -18,44 +18,44 @@
namespace JS {
DeprecatedString MarkupGenerator::html_from_source(StringView source)
ErrorOr<String> MarkupGenerator::html_from_source(StringView source)
{
StringBuilder builder;
auto lexer = Lexer(source);
for (auto token = lexer.next(); token.type() != TokenType::Eof; token = lexer.next()) {
builder.append(token.trivia());
builder.append(wrap_string_in_style(token.value(), style_type_for_token(token)));
TRY(builder.try_append(token.trivia()));
TRY(builder.try_append(TRY(wrap_string_in_style(token.value(), style_type_for_token(token)))));
}
return builder.to_deprecated_string();
return builder.to_string();
}
DeprecatedString MarkupGenerator::html_from_value(Value value)
ErrorOr<String> MarkupGenerator::html_from_value(Value value)
{
StringBuilder output_html;
value_to_html(value, output_html);
return output_html.to_deprecated_string();
TRY(value_to_html(value, output_html));
return output_html.to_string();
}
DeprecatedString MarkupGenerator::html_from_error(Error const& object, bool in_promise)
ErrorOr<String> MarkupGenerator::html_from_error(Error const& object, bool in_promise)
{
StringBuilder output_html;
error_to_html(object, output_html, in_promise);
return output_html.to_deprecated_string();
TRY(error_to_html(object, output_html, in_promise));
return output_html.to_string();
}
void MarkupGenerator::value_to_html(Value value, StringBuilder& output_html, HashTable<Object*> seen_objects)
ErrorOr<void> MarkupGenerator::value_to_html(Value value, StringBuilder& output_html, HashTable<Object*> seen_objects)
{
if (value.is_empty()) {
output_html.append("&lt;empty&gt;"sv);
return;
TRY(output_html.try_append("&lt;empty&gt;"sv));
return {};
}
if (value.is_object()) {
if (seen_objects.contains(&value.as_object())) {
// FIXME: Maybe we should only do this for circular references,
// not for all reoccurring objects.
output_html.appendff("&lt;already printed Object {:p}&gt;", &value.as_object());
return;
TRY(output_html.try_appendff("&lt;already printed Object {:p}&gt;", &value.as_object()));
return {};
}
seen_objects.set(&value.as_object());
}
@ -64,7 +64,7 @@ void MarkupGenerator::value_to_html(Value value, StringBuilder& output_html, Has
auto& object = value.as_object();
if (is<Array>(object))
return array_to_html(static_cast<Array const&>(object), output_html, seen_objects);
output_html.append(wrap_string_in_style(object.class_name(), StyleType::ObjectType));
TRY(output_html.try_append(TRY(wrap_string_in_style(object.class_name(), StyleType::ObjectType))));
if (object.is_function())
return function_to_html(object, output_html, seen_objects);
if (is<Date>(object))
@ -73,76 +73,81 @@ void MarkupGenerator::value_to_html(Value value, StringBuilder& output_html, Has
}
if (value.is_string())
output_html.append(open_style_type(StyleType::String));
TRY(output_html.try_append(TRY(open_style_type(StyleType::String))));
else if (value.is_number())
output_html.append(open_style_type(StyleType::Number));
TRY(output_html.try_append(TRY(open_style_type(StyleType::Number))));
else if (value.is_boolean() || value.is_nullish())
output_html.append(open_style_type(StyleType::KeywordBold));
TRY(output_html.try_append(TRY(open_style_type(StyleType::KeywordBold))));
if (value.is_string())
output_html.append('"');
output_html.append(escape_html_entities(value.to_string_without_side_effects()));
TRY(output_html.try_append('"'));
TRY(output_html.try_append(escape_html_entities(value.to_string_without_side_effects())));
if (value.is_string())
output_html.append('"');
TRY(output_html.try_append('"'));
output_html.append("</span>"sv);
TRY(output_html.try_append("</span>"sv));
return {};
}
void MarkupGenerator::array_to_html(Array const& array, StringBuilder& html_output, HashTable<Object*>& seen_objects)
ErrorOr<void> MarkupGenerator::array_to_html(Array const& array, StringBuilder& html_output, HashTable<Object*>& seen_objects)
{
html_output.append(wrap_string_in_style("[ ", StyleType::Punctuation));
TRY(html_output.try_append(TRY(wrap_string_in_style("[ "sv, StyleType::Punctuation))));
bool first = true;
for (auto it = array.indexed_properties().begin(false); it != array.indexed_properties().end(); ++it) {
if (!first)
html_output.append(wrap_string_in_style(", ", StyleType::Punctuation));
TRY(html_output.try_append(TRY(wrap_string_in_style(", "sv, StyleType::Punctuation))));
first = false;
// FIXME: Exception check
value_to_html(array.get(it.index()).release_value(), html_output, seen_objects);
TRY(value_to_html(array.get(it.index()).release_value(), html_output, seen_objects));
}
html_output.append(wrap_string_in_style(" ]", StyleType::Punctuation));
TRY(html_output.try_append(TRY(wrap_string_in_style(" ]"sv, StyleType::Punctuation))));
return {};
}
void MarkupGenerator::object_to_html(Object const& object, StringBuilder& html_output, HashTable<Object*>& seen_objects)
ErrorOr<void> MarkupGenerator::object_to_html(Object const& object, StringBuilder& html_output, HashTable<Object*>& seen_objects)
{
html_output.append(wrap_string_in_style("{ ", StyleType::Punctuation));
TRY(html_output.try_append(TRY(wrap_string_in_style("{ "sv, StyleType::Punctuation))));
bool first = true;
for (auto& entry : object.indexed_properties()) {
if (!first)
html_output.append(wrap_string_in_style(", ", StyleType::Punctuation));
TRY(html_output.try_append(TRY(wrap_string_in_style(", "sv, StyleType::Punctuation))));
first = false;
html_output.append(wrap_string_in_style(DeprecatedString::number(entry.index()), StyleType::Number));
html_output.append(wrap_string_in_style(": ", StyleType::Punctuation));
TRY(html_output.try_append(TRY(wrap_string_in_style(TRY(String::number(entry.index())), StyleType::Number))));
TRY(html_output.try_append(TRY(wrap_string_in_style(": "sv, StyleType::Punctuation))));
// FIXME: Exception check
value_to_html(object.get(entry.index()).release_value(), html_output, seen_objects);
TRY(value_to_html(object.get(entry.index()).release_value(), html_output, seen_objects));
}
if (!object.indexed_properties().is_empty() && object.shape().property_count())
html_output.append(wrap_string_in_style(", ", StyleType::Punctuation));
TRY(html_output.try_append(TRY(wrap_string_in_style(", "sv, StyleType::Punctuation))));
size_t index = 0;
for (auto& it : object.shape().property_table_ordered()) {
html_output.append(wrap_string_in_style(DeprecatedString::formatted("\"{}\"", escape_html_entities(it.key.to_display_string())), StyleType::String));
html_output.append(wrap_string_in_style(": ", StyleType::Punctuation));
value_to_html(object.get_direct(it.value.offset), html_output, seen_objects);
TRY(html_output.try_append(TRY(wrap_string_in_style(TRY(String::formatted("\"{}\"", escape_html_entities(it.key.to_display_string()))), StyleType::String))));
TRY(html_output.try_append(TRY(wrap_string_in_style(": "sv, StyleType::Punctuation))));
TRY(value_to_html(object.get_direct(it.value.offset), html_output, seen_objects));
if (index != object.shape().property_count() - 1)
html_output.append(wrap_string_in_style(", ", StyleType::Punctuation));
TRY(html_output.try_append(TRY(wrap_string_in_style(", "sv, StyleType::Punctuation))));
++index;
}
html_output.append(wrap_string_in_style(" }", StyleType::Punctuation));
TRY(html_output.try_append(TRY(wrap_string_in_style(" }"sv, StyleType::Punctuation))));
return {};
}
void MarkupGenerator::function_to_html(Object const& function, StringBuilder& html_output, HashTable<Object*>&)
ErrorOr<void> MarkupGenerator::function_to_html(Object const& function, StringBuilder& html_output, HashTable<Object*>&)
{
html_output.appendff("[{}]", function.class_name());
TRY(html_output.try_appendff("[{}]", function.class_name()));
return {};
}
void MarkupGenerator::date_to_html(Object const& date, StringBuilder& html_output, HashTable<Object*>&)
ErrorOr<void> MarkupGenerator::date_to_html(Object const& date, StringBuilder& html_output, HashTable<Object*>&)
{
html_output.appendff("Date {}", to_date_string(static_cast<Date const&>(date).date_value()));
TRY(html_output.try_appendff("Date {}", to_date_string(static_cast<Date const&>(date).date_value())));
return {};
}
void MarkupGenerator::trace_to_html(TracebackFrame const& traceback_frame, StringBuilder& html_output)
ErrorOr<void> MarkupGenerator::trace_to_html(TracebackFrame const& traceback_frame, StringBuilder& html_output)
{
auto function_name = escape_html_entities(traceback_frame.function_name);
auto [line, column, _] = traceback_frame.source_range.start;
@ -151,52 +156,54 @@ void MarkupGenerator::trace_to_html(TracebackFrame const& traceback_frame, Strin
return last_slash_index.has_value() ? filename.substring_view(*last_slash_index + 1) : filename;
};
auto filename = escape_html_entities(get_filename_from_path(traceback_frame.source_range.filename()));
auto trace = DeprecatedString::formatted("at {} ({}:{}:{})", function_name, filename, line, column);
auto trace = TRY(String::formatted("at {} ({}:{}:{})", function_name, filename, line, column));
html_output.appendff("&nbsp;&nbsp;{}<br>", trace);
TRY(html_output.try_appendff("&nbsp;&nbsp;{}<br>", trace));
return {};
}
void MarkupGenerator::error_to_html(Error const& error, StringBuilder& html_output, bool in_promise)
ErrorOr<void> MarkupGenerator::error_to_html(Error const& error, StringBuilder& html_output, bool in_promise)
{
auto& vm = error.vm();
auto name = error.get_without_side_effects(vm.names.name).value_or(js_undefined());
auto message = error.get_without_side_effects(vm.names.message).value_or(js_undefined());
auto name_string = name.to_string_without_side_effects();
auto message_string = message.to_string_without_side_effects();
auto uncaught_message = DeprecatedString::formatted("Uncaught {}[{}]: ", in_promise ? "(in promise) " : "", name_string);
auto uncaught_message = TRY(String::formatted("Uncaught {}[{}]: ", in_promise ? "(in promise) " : "", name_string));
html_output.append(wrap_string_in_style(uncaught_message, StyleType::Invalid));
html_output.appendff("{}<br>", message_string.is_empty() ? "\"\"" : escape_html_entities(message_string));
TRY(html_output.try_append(TRY(wrap_string_in_style(uncaught_message, StyleType::Invalid)).bytes_as_string_view()));
TRY(html_output.try_appendff("{}<br>", message_string.is_empty() ? "\"\"" : escape_html_entities(message_string)));
for (size_t i = 0; i < error.traceback().size() - min(error.traceback().size(), 3); i++) {
auto& traceback_frame = error.traceback().at(i);
trace_to_html(traceback_frame, html_output);
TRY(trace_to_html(traceback_frame, html_output));
}
return {};
}
DeprecatedString MarkupGenerator::style_from_style_type(StyleType type)
StringView MarkupGenerator::style_from_style_type(StyleType type)
{
switch (type) {
case StyleType::Invalid:
return "color: red;";
return "color: red;"sv;
case StyleType::String:
return "color: -libweb-palette-syntax-string;";
return "color: -libweb-palette-syntax-string;"sv;
case StyleType::Number:
return "color: -libweb-palette-syntax-number;";
return "color: -libweb-palette-syntax-number;"sv;
case StyleType::KeywordBold:
return "color: -libweb-palette-syntax-keyword; font-weight: bold;";
return "color: -libweb-palette-syntax-keyword; font-weight: bold;"sv;
case StyleType::Punctuation:
return "color: -libweb-palette-syntax-punctuation;";
return "color: -libweb-palette-syntax-punctuation;"sv;
case StyleType::Operator:
return "color: -libweb-palette-syntax-operator;";
return "color: -libweb-palette-syntax-operator;"sv;
case StyleType::Keyword:
return "color: -libweb-palette-syntax-keyword;";
return "color: -libweb-palette-syntax-keyword;"sv;
case StyleType::ControlKeyword:
return "color: -libweb-palette-syntax-control-keyword;";
return "color: -libweb-palette-syntax-control-keyword;"sv;
case StyleType::Identifier:
return "color: -libweb-palette-syntax-identifier;";
return "color: -libweb-palette-syntax-identifier;"sv;
case StyleType::ObjectType:
return "padding: 2px; background-color: #ddf; color: black; font-weight: bold;";
return "padding: 2px; background-color: #ddf; color: black; font-weight: bold;"sv;
default:
VERIFY_NOT_REACHED();
}
@ -233,14 +240,14 @@ MarkupGenerator::StyleType MarkupGenerator::style_type_for_token(Token token)
}
}
DeprecatedString MarkupGenerator::open_style_type(StyleType type)
ErrorOr<String> MarkupGenerator::open_style_type(StyleType type)
{
return DeprecatedString::formatted("<span style=\"{}\">", style_from_style_type(type));
return String::formatted("<span style=\"{}\">", style_from_style_type(type));
}
DeprecatedString MarkupGenerator::wrap_string_in_style(DeprecatedString source, StyleType type)
ErrorOr<String> MarkupGenerator::wrap_string_in_style(StringView source, StyleType type)
{
return DeprecatedString::formatted("<span style=\"{}\">{}</span>", style_from_style_type(type), escape_html_entities(source));
return String::formatted("<span style=\"{}\">{}</span>", style_from_style_type(type), escape_html_entities(source));
}
}

28
Userland/Libraries/LibJS/MarkupGenerator.h
View File

@ -6,8 +6,8 @@
#pragma once
#include <AK/DeprecatedString.h>
#include <AK/HashTable.h>
#include <AK/String.h>
#include <LibJS/Forward.h>
#include <LibJS/Runtime/Error.h>
@ -15,9 +15,9 @@ namespace JS {
class MarkupGenerator {
public:
static DeprecatedString html_from_source(StringView);
static DeprecatedString html_from_value(Value);
static DeprecatedString html_from_error(Error const&, bool);
static ErrorOr<String> html_from_source(StringView);
static ErrorOr<String> html_from_value(Value);
static ErrorOr<String> html_from_error(Error const&, bool);
private:
enum class StyleType {
@ -33,18 +33,18 @@ private:
ObjectType,
};
static void value_to_html(Value, StringBuilder& output_html, HashTable<Object*> seen_objects = {});
static void array_to_html(Array const&, StringBuilder& output_html, HashTable<Object*>&);
static void object_to_html(Object const&, StringBuilder& output_html, HashTable<Object*>&);
static void function_to_html(Object const&, StringBuilder& output_html, HashTable<Object*>&);
static void date_to_html(Object const&, StringBuilder& output_html, HashTable<Object*>&);
static void error_to_html(Error const&, StringBuilder& output_html, bool in_promise);
static void trace_to_html(TracebackFrame const&, StringBuilder& output_html);
static ErrorOr<void> value_to_html(Value, StringBuilder& output_html, HashTable<Object*> seen_objects = {});
static ErrorOr<void> array_to_html(Array const&, StringBuilder& output_html, HashTable<Object*>&);
static ErrorOr<void> object_to_html(Object const&, StringBuilder& output_html, HashTable<Object*>&);
static ErrorOr<void> function_to_html(Object const&, StringBuilder& output_html, HashTable<Object*>&);
static ErrorOr<void> date_to_html(Object const&, StringBuilder& output_html, HashTable<Object*>&);
static ErrorOr<void> error_to_html(Error const&, StringBuilder& output_html, bool in_promise);
static ErrorOr<void> trace_to_html(TracebackFrame const&, StringBuilder& output_html);
static DeprecatedString style_from_style_type(StyleType);
static StringView style_from_style_type(StyleType);
static StyleType style_type_for_token(Token);
static DeprecatedString open_style_type(StyleType type);
static DeprecatedString wrap_string_in_style(DeprecatedString source, StyleType type);
static ErrorOr<String> open_style_type(StyleType type);
static ErrorOr<String> wrap_string_in_style(StringView source, StyleType type);
};
}

2
Userland/Libraries/LibMarkdown/CodeBlock.cpp
View File

@ -30,7 +30,7 @@ DeprecatedString CodeBlock::render_to_html(bool) const
builder.appendff("<code class=\"language-{}\">", escape_html_entities(m_language));
if (m_language == "js")
builder.append(JS::MarkupGenerator::html_from_source(m_code));
builder.append(JS::MarkupGenerator::html_from_source(m_code).release_value_but_fixme_should_propagate_errors());
else
builder.append(escape_html_entities(m_code));

4
Userland/Services/WebContent/WebContentConsoleClient.cpp
View File

@ -79,13 +79,13 @@ void WebContentConsoleClient::handle_input(DeprecatedString const& js_source)
if (result.value().has_value()) {
m_console_global_object->set_most_recent_result(result.value().value());
print_html(JS::MarkupGenerator::html_from_value(*result.value()));
print_html(JS::MarkupGenerator::html_from_value(*result.value()).release_value_but_fixme_should_propagate_errors().to_deprecated_string());
}
}
void WebContentConsoleClient::report_exception(JS::Error const& exception, bool in_promise)
{
print_html(JS::MarkupGenerator::html_from_error(exception, in_promise));
print_html(JS::MarkupGenerator::html_from_error(exception, in_promise).release_value_but_fixme_should_propagate_errors().to_deprecated_string());
}
void WebContentConsoleClient::print_html(DeprecatedString const& line)