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LibPDF: Pre-initialize common FlyStrings in CommonNames.h

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Matthew Olsson 2021-05-24 08:15:43 -07:00 • committed by Ali Mohammad Pur
parent cf3eb27108
commit 78f3bad7e6
8 changed files with 148 additions and 64 deletions
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13
Userland/Libraries/LibPDF/Parser.cpp
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@ -6,6 +6,7 @@
#include <AK/ScopeGuard.h>
#include <AK/TypeCasts.h>
#include <LibPDF/CommonNames.h>
#include <LibPDF/Document.h>
#include <LibPDF/Filter.h>
#include <LibPDF/Parser.h>
@ -616,19 +617,19 @@ RefPtr<DictObject> Parser::conditionally_parse_page_tree_node_at_offset(size_t o
break;
auto name = parse_name();
auto name_string = name->name();
if (!name_string.is_one_of("Type", "Parent", "Kids", "Count")) {
if (!name_string.is_one_of(CommonNames::Type, CommonNames::Parent, CommonNames::Kids, CommonNames::Count)) {
// This is a page, not a page tree node
return {};
}
auto value = parse_value();
if (name_string == "Type") {
if (name_string == CommonNames::Type) {
if (!value.is_object())
return {};
auto type_object = value.as_object();
if (!type_object->is_name())
return {};
auto type_name = object_cast<NameObject>(type_object);
if (type_name->name() != "Pages")
if (type_name->name() != CommonNames::Pages)
return {};
}
map.set(name->name(), value);
@ -649,7 +650,7 @@ NonnullRefPtr<StreamObject> Parser::parse_stream(NonnullRefPtr<DictObject> dict)
ReadonlyBytes bytes;
auto maybe_length = dict->get("Length");
auto maybe_length = dict->get(CommonNames::Length);
if (maybe_length.has_value()) {
// The PDF writer has kindly provided us with the direct length of the stream
m_reader.save();
@ -677,8 +678,8 @@ NonnullRefPtr<StreamObject> Parser::parse_stream(NonnullRefPtr<DictObject> dict)
m_reader.move_by(9);
consume_whitespace();
if (dict->contains("Filter")) {
auto filter_type = dict->get_name(m_document, "Filter")->name();
if (dict->contains(CommonNames::Filter)) {
auto filter_type = dict->get_name(m_document, CommonNames::Filter)->name();
auto maybe_bytes = Filter::decode(bytes, filter_type);
// FIXME: Handle error condition
VERIFY(maybe_bytes.has_value());