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LibWeb: Extract common integral IDL generators to a helper

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We currently repeat the same generator code for all 7 integral types
that we generate C++ for. Extract it to a helper.
This commit is contained in:
Timothy Flynn 2024-02-19 21:58:00 -05:00 committed by Andreas Kling
parent 05a7482118
commit 13ed003be1
Notes: sideshowbarker 2024-07-17 07:16:27 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/13ed003be1
Pull-request: https://github.com/SerenityOS/serenity/pull/23266
1 changed files with 64 additions and 174 deletions
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238
Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
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@ -11,6 +11,7 @@
*/
#include "Namespaces.h"
#include <AK/Array.h>
#include <AK/LexicalPath.h>
#include <AK/Queue.h>
#include <AK/QuickSort.h>
@ -369,6 +370,67 @@ static void generate_to_string(SourceGenerator& scoped_generator, ParameterType
}
}
template<typename ParameterType>
static void generate_to_integral(SourceGenerator& scoped_generator, ParameterType const& parameter, bool optional, Optional<ByteString> const& optional_default_value)
{
struct TypeMap {
StringView idl_type;
StringView cpp_type;
};
static constexpr auto idl_type_map = to_array<TypeMap>({
{ "boolean"sv, "bool"sv },
{ "byte"sv, "WebIDL::Byte"sv },
{ "octet"sv, "WebIDL::Octet"sv },
{ "short"sv, "WebIDL::Short"sv },
{ "unsigned short"sv, "WebIDL::UnsignedShort"sv },
{ "long"sv, "WebIDL::Long"sv },
{ "long long"sv, "WebIDL::LongLong"sv },
{ "unsigned long"sv, "WebIDL::UnsignedLong"sv },
{ "unsigned long long"sv, "WebIDL::UnsignedLongLong"sv },
});
auto it = find_if(idl_type_map.begin(), idl_type_map.end(), [&](auto const& entry) {
return entry.idl_type == parameter.type->name();
});
VERIFY(it != idl_type_map.end());
scoped_generator.set("cpp_type"sv, it->cpp_type);
if (!optional || optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
@cpp_type@ @cpp_name@;
)~~~");
} else {
scoped_generator.append(R"~~~(
Optional<@cpp_type@> @cpp_name@;
)~~~");
}
if (optional) {
scoped_generator.append(R"~~~(
if (!@js_name@@js_suffix@.is_undefined())
)~~~");
}
// FIXME: pass through [EnforceRange] and [Clamp] extended attributes
if (it->cpp_type == "bool"sv) {
scoped_generator.append(R"~~~(
@cpp_name@ = @js_name@@js_suffix@.to_boolean();
)~~~");
} else {
scoped_generator.append(R"~~~(
@cpp_name@ = TRY(WebIDL::convert_to_int<@cpp_type@>(vm, @js_name@@js_suffix@));
)~~~");
}
if (optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
else
@cpp_name@ = static_cast<@cpp_type@>(@parameter.optional_default_value@);
)~~~");
}
}
template<typename ParameterType>
static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter, ByteString const& js_name, ByteString const& js_suffix, ByteString const& cpp_name, IDL::Interface const& interface, bool legacy_null_to_empty_string = false, bool optional = false, Optional<ByteString> optional_default_value = {}, bool variadic = false, size_t recursion_depth = 0, bool string_to_fly_string = false)
{
@ -400,6 +462,8 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
// FIXME: Add support for optional, variadic, nullable and default values to all types
if (parameter.type->is_string()) {
generate_to_string(scoped_generator, parameter, variadic, optional, optional_default_value);
} else if (parameter.type->is_boolean() || parameter.type->is_integer()) {
generate_to_integral(scoped_generator, parameter, optional, optional_default_value);
} else if (parameter.type->name().is_one_of("EventListener", "NodeFilter")) {
// FIXME: Replace this with support for callback interfaces. https://webidl.spec.whatwg.org/#idl-callback-interface
@ -505,180 +569,6 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
)~~~");
}
}
} else if (parameter.type->name() == "boolean") {
if (!optional || optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
bool @cpp_name@;
)~~~");
} else {
scoped_generator.append(R"~~~(
Optional<bool> @cpp_name@;
)~~~");
}
if (optional) {
scoped_generator.append(R"~~~(
if (!@js_name@@js_suffix@.is_undefined())
)~~~");
}
scoped_generator.append(R"~~~(
@cpp_name@ = @js_name@@js_suffix@.to_boolean();
)~~~");
if (optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
else
@cpp_name@ = @parameter.optional_default_value@;
)~~~");
}
} else if (parameter.type->name() == "unsigned long") {
if (!optional || optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
WebIDL::UnsignedLong @cpp_name@;
)~~~");
} else {
scoped_generator.append(R"~~~(
Optional<WebIDL::UnsignedLong> @cpp_name@;
)~~~");
}
if (optional) {
scoped_generator.append(R"~~~(
if (!@js_name@@js_suffix@.is_undefined())
)~~~");
}
// FIXME: pass through [EnforceRange] and [Clamp] extended attributes
scoped_generator.append(R"~~~(
@cpp_name@ = TRY(WebIDL::convert_to_int<WebIDL::UnsignedLong>(vm, @js_name@@js_suffix@));
)~~~");
if (optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
else
@cpp_name@ = @parameter.optional_default_value@UL;
)~~~");
}
} else if (parameter.type->name() == "short") {
if (!optional || optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
WebIDL::Short @cpp_name@;
)~~~");
} else {
scoped_generator.append(R"~~~(
Optional<WebIDL::Short> @cpp_name@;
)~~~");
}
if (optional) {
scoped_generator.append(R"~~~(
if (!@js_name@@js_suffix@.is_undefined())
)~~~");
}
// FIXME: pass through [EnforceRange] and [Clamp] extended attributes
scoped_generator.append(R"~~~(
@cpp_name@ = TRY(WebIDL::convert_to_int<WebIDL::Short>(vm, @js_name@@js_suffix@));
)~~~");
if (optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
else
@cpp_name@ = @parameter.optional_default_value@;
)~~~");
}
} else if (parameter.type->name() == "unsigned short") {
if (!optional || optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
WebIDL::UnsignedShort @cpp_name@;
)~~~");
} else {
scoped_generator.append(R"~~~(
Optional<WebIDL::UnsignedShort> @cpp_name@;
)~~~");
}
if (optional) {
scoped_generator.append(R"~~~(
if (!@js_name@@js_suffix@.is_undefined())
)~~~");
}
// FIXME: pass through [EnforceRange] and [Clamp] extended attributes
scoped_generator.append(R"~~~(
@cpp_name@ = TRY(WebIDL::convert_to_int<WebIDL::UnsignedShort>(vm, @js_name@@js_suffix@));
)~~~");
if (optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
else
@cpp_name@ = @parameter.optional_default_value@;
)~~~");
}
} else if (parameter.type->name() == "long") {
if (!optional || optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
WebIDL::Long @cpp_name@;
)~~~");
} else {
scoped_generator.append(R"~~~(
Optional<WebIDL::Long> @cpp_name@;
)~~~");
}
if (optional) {
scoped_generator.append(R"~~~(
if (!@js_name@@js_suffix@.is_undefined())
)~~~");
}
// FIXME: pass through [EnforceRange] and [Clamp] extended attributes
scoped_generator.append(R"~~~(
@cpp_name@ = TRY(WebIDL::convert_to_int<WebIDL::Long>(vm, @js_name@@js_suffix@));
)~~~");
if (optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
else
@cpp_name@ = @parameter.optional_default_value@L;
)~~~");
}
} else if (parameter.type->name() == "long long") {
if (!optional || optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
WebIDL::LongLong @cpp_name@;
)~~~");
} else {
scoped_generator.append(R"~~~(
Optional<WebIDL::LongLong> @cpp_name@;
)~~~");
}
if (optional) {
scoped_generator.append(R"~~~(
if (!@js_name@@js_suffix@.is_undefined())
)~~~");
}
// FIXME: pass through [EnforceRange] and [Clamp] extended attributes
scoped_generator.append(R"~~~(
@cpp_name@ = TRY(WebIDL::convert_to_int<WebIDL::LongLong>(vm, @js_name@@js_suffix@));
)~~~");
if (optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
else
@cpp_name@ = @parameter.optional_default_value@L;
)~~~");
}
} else if (parameter.type->name() == "unsigned long long") {
if (!optional || optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
WebIDL::UnsignedLongLong @cpp_name@;
)~~~");
} else {
scoped_generator.append(R"~~~(
Optional<WebIDL::UnsignedLongLong> @cpp_name@;
)~~~");
}
if (optional) {
scoped_generator.append(R"~~~(
if (!@js_name@@js_suffix@.is_undefined())
)~~~");
}
// FIXME: pass through [EnforceRange] and [Clamp] extended attributes
scoped_generator.append(R"~~~(
@cpp_name@ = TRY(WebIDL::convert_to_int<WebIDL::UnsignedLongLong>(vm, @js_name@@js_suffix@));
)~~~");
if (optional_default_value.has_value()) {
scoped_generator.append(R"~~~(
else
@cpp_name@ = @parameter.optional_default_value@ULL;
)~~~");
}
} else if (parameter.type->name() == "Promise") {
// NOTE: It's not clear to me where the implicit wrapping of non-Promise values in a resolved
// Promise is defined in the spec; https://webidl.spec.whatwg.org/#idl-promise doesn't say