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LibWeb: Add support for custom #import IDL statements

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This will currently be used to support dictionary inheritance between
dictionaries defined across different IDL definition files.
This commit is contained in:
Idan Horowitz 2021-09-29 20:30:27 +03:00 • committed by Andreas Kling
parent 0b23a20ad5
commit e04f3c713c
Notes: sideshowbarker 2024-07-18 03:20:22 +09:00
1 changed files with 29 additions and 2 deletions
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31
Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator.cpp
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@ -11,6 +11,7 @@
#include <AK/GenericLexer.h>
#include <AK/HashMap.h>
#include <AK/LexicalPath.h>
#include <AK/NonnullOwnPtrVector.h>
#include <AK/OwnPtr.h>
#include <AK/QuickSort.h>
#include <AK/SourceGenerator.h>
@ -32,7 +33,7 @@ static String make_input_acceptable_cpp(String const& input)
return input.replace("-", "_");
}
static void report_parsing_error(StringView message, StringView filename, StringView input, size_t offset)
[[noreturn]] static void report_parsing_error(StringView message, StringView filename, StringView input, size_t offset)
{
// FIXME: Spaghetti code ahead.
@ -184,7 +185,7 @@ struct Interface {
bool is_legacy_platform_object() const { return !extended_attributes.contains("Global") && (supports_indexed_properties() || supports_named_properties()); }
};
static NonnullOwnPtr<Interface> parse_interface(StringView filename, StringView const& input)
static NonnullOwnPtr<Interface> parse_interface(StringView filename, StringView input)
{
auto interface = make<Interface>();
@ -231,6 +232,27 @@ static NonnullOwnPtr<Interface> parse_interface(StringView filename, StringView
return extended_attributes;
};
auto resolve_import = [&](auto path) {
auto include_path = LexicalPath::join(LexicalPath::dirname(filename), path).string();
if (!Core::File::exists(include_path))
report_parsing_error(String::formatted("{}: No such file or directory", include_path), filename, input, lexer.tell());
auto file_or_error = Core::File::open(include_path, Core::OpenMode::ReadOnly);
if (file_or_error.is_error())
report_parsing_error(String::formatted("Failed to open {}: {}", include_path, file_or_error.error()), filename, input, lexer.tell());
auto data = file_or_error.value()->read_all();
return IDL::parse_interface(include_path, data);
};
NonnullOwnPtrVector<Interface> imports;
while (lexer.consume_specific("#import")) {
consume_whitespace();
assert_specific('<');
imports.append(resolve_import(lexer.consume_until('>')));
consume_whitespace();
}
if (lexer.consume_specific('['))
interface->extended_attributes = parse_extended_attributes();
@ -644,6 +666,11 @@ static NonnullOwnPtr<Interface> parse_interface(StringView filename, StringView
consume_whitespace();
}
for (auto& import : imports) { // FIXME: Instead of copying every imported dictionary into the current interface, query imports directly
for (auto& dictionary : import.dictionaries)
interface->dictionaries.set(dictionary.key, dictionary.value);
}
return interface;
}