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LibWeb: Add dictionary types to idl_type_name_to_cpp_type

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This allows dictionaries to appear in sequences, records and unions.
This commit is contained in:
Luke Wilde 2022-02-19 21:57:34 +00:00 • committed by Andreas Kling
parent 567abd52a3
commit d0ebe80f69
2 changed files with 139 additions and 132 deletions
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25
Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLGenerators.cpp
View file

@ -60,7 +60,7 @@ static StringView sequence_storage_type_to_cpp_storage_type_name(SequenceStorage
}
}
CppType idl_type_name_to_cpp_type(Type const& type)
CppType idl_type_name_to_cpp_type(Type const& type, Interface const& interface)
{
if (is_wrappable_type(type)) {
if (type.nullable)
@ -93,7 +93,7 @@ CppType idl_type_name_to_cpp_type(Type const& type)
if (type.name == "sequence") {
auto& parameterized_type = verify_cast<ParameterizedType>(type);
auto& sequence_type = parameterized_type.parameters.first();
auto sequence_cpp_type = idl_type_name_to_cpp_type(sequence_type);
auto sequence_cpp_type = idl_type_name_to_cpp_type(sequence_type, interface);
auto storage_type_name = sequence_storage_type_to_cpp_storage_type_name(sequence_cpp_type.sequence_storage_type);
if (sequence_cpp_type.sequence_storage_type == SequenceStorageType::MarkedVector)
@ -106,15 +106,22 @@ CppType idl_type_name_to_cpp_type(Type const& type)
auto& parameterized_type = verify_cast<ParameterizedType>(type);
auto& record_key_type = parameterized_type.parameters[0];
auto& record_value_type = parameterized_type.parameters[1];
auto record_key_cpp_type = idl_type_name_to_cpp_type(record_key_type);
auto record_value_cpp_type = idl_type_name_to_cpp_type(record_value_type);
auto record_key_cpp_type = idl_type_name_to_cpp_type(record_key_type, interface);
auto record_value_cpp_type = idl_type_name_to_cpp_type(record_value_type, interface);
return { .name = String::formatted("OrderedHashMap<{}, {}>", record_key_cpp_type.name, record_value_cpp_type.name), .sequence_storage_type = SequenceStorageType::Vector };
}
if (is<UnionType>(type)) {
auto& union_type = verify_cast<UnionType>(type);
return { .name = union_type.to_variant(), .sequence_storage_type = SequenceStorageType::Vector };
return { .name = union_type.to_variant(interface), .sequence_storage_type = SequenceStorageType::Vector };
}
if (!type.nullable) {
for (auto& dictionary : interface.dictionaries) {
if (type.name == dictionary.key)
return { .name = type.name, .sequence_storage_type = SequenceStorageType::Vector };
}
}
dbgln("Unimplemented type for idl_type_name_to_cpp_type: {}{}", type.name, type.nullable ? "?" : "");
@ -612,7 +619,7 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
// 4. Set result[typedKey] to typedValue.
// 5. Return result.
auto record_cpp_type = IDL::idl_type_name_to_cpp_type(parameterized_type);
auto record_cpp_type = IDL::idl_type_name_to_cpp_type(parameterized_type, interface);
record_generator.set("record.type", record_cpp_type.name);
// If this is a recursive call to generate_to_cpp, assume that the caller has already handled converting the JS value to an object for us.
@ -661,7 +668,7 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
auto union_generator = scoped_generator.fork();
auto& union_type = verify_cast<IDL::UnionType>(*parameter.type);
union_generator.set("union_type", union_type.to_variant());
union_generator.set("union_type", union_type.to_variant(interface));
union_generator.set("recursion_depth", String::number(recursion_depth));
// A lambda is used because Variants without "Empty" can't easily be default initialized.
@ -940,7 +947,7 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
// 4. Return the result of converting x to T.
auto union_numeric_type_generator = union_generator.fork();
auto cpp_type = IDL::idl_type_name_to_cpp_type(*numeric_type);
auto cpp_type = IDL::idl_type_name_to_cpp_type(*numeric_type, interface);
union_numeric_type_generator.set("numeric_type", cpp_type.name);
union_numeric_type_generator.append(R"~~~(
@ -1086,7 +1093,7 @@ void IDL::ParameterizedType::generate_sequence_from_iterable(SourceGenerator& ge
sequence_generator.set("iterable_cpp_name", iterable_cpp_name);
sequence_generator.set("iterator_method_cpp_name", iterator_method_cpp_name);
sequence_generator.set("recursion_depth", String::number(recursion_depth));
auto sequence_cpp_type = idl_type_name_to_cpp_type(parameters.first());
auto sequence_cpp_type = idl_type_name_to_cpp_type(parameters.first(), interface);
sequence_generator.set("sequence.type", sequence_cpp_type.name);
sequence_generator.set("sequence.storage_type", sequence_storage_type_to_cpp_storage_type_name(sequence_cpp_type.sequence_storage_type));

246
Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLTypes.h
View file

@ -64,129 +64,6 @@ struct Type : public RefCounted<Type> {
bool is_numeric() const { return is_integer() || name.is_one_of("float", "unrestricted float", "double", "unrestricted double"); }
};
CppType idl_type_name_to_cpp_type(Type const& type);
struct UnionType : public Type {
UnionType() = default;
UnionType(String name, bool nullable, NonnullRefPtrVector<Type> member_types)
: Type(move(name), nullable)
, member_types(move(member_types))
{
}
virtual ~UnionType() override = default;
NonnullRefPtrVector<Type> member_types;
// https://webidl.spec.whatwg.org/#dfn-flattened-union-member-types
NonnullRefPtrVector<Type> flattened_member_types() const
{
// 1. Let T be the union type.
// 2. Initialize S to ∅.
NonnullRefPtrVector<Type> types;
// 3. For each member type U of T:
for (auto& type : member_types) {
// FIXME: 1. If U is an annotated type, then set U to be the inner type of U.
// 2. If U is a nullable type, then set U to be the inner type of U. (NOTE: Not necessary as nullable is stored with Type and not as a separate struct)
// 3. If U is a union type, then add to S the flattened member types of U.
if (is<UnionType>(type)) {
auto& union_member_type = verify_cast<UnionType>(type);
types.extend(union_member_type.flattened_member_types());
} else {
// 4. Otherwise, U is not a union type. Add U to S.
types.append(type);
}
}
// 4. Return S.
return types;
}
// https://webidl.spec.whatwg.org/#dfn-number-of-nullable-member-types
size_t number_of_nullable_member_types() const
{
// 1. Let T be the union type.
// 2. Initialize n to 0.
size_t num_nullable_member_types = 0;
// 3. For each member type U of T:
for (auto& type : member_types) {
// 1. If U is a nullable type, then:
if (type.nullable) {
// 1. Set n to n + 1.
++num_nullable_member_types;
// 2. Set U to be the inner type of U. (NOTE: Not necessary as nullable is stored with Type and not as a separate struct)
}
// 2. If U is a union type, then:
if (is<UnionType>(type)) {
auto& union_member_type = verify_cast<UnionType>(type);
// 1. Let m be the number of nullable member types of U.
// 2. Set n to n + m.
num_nullable_member_types += union_member_type.number_of_nullable_member_types();
}
}
// 4. Return n.
return num_nullable_member_types;
}
// https://webidl.spec.whatwg.org/#dfn-includes-a-nullable-type
bool includes_nullable_type() const
{
// -> the type is a union type and its number of nullable member types is 1.
return number_of_nullable_member_types() == 1;
}
// -> https://webidl.spec.whatwg.org/#dfn-includes-undefined
bool includes_undefined() const
{
// -> the type is a union type and one of its member types includes undefined.
for (auto& type : member_types) {
if (is<UnionType>(type)) {
auto& union_type = verify_cast<UnionType>(type);
if (union_type.includes_undefined())
return true;
}
if (type.name == "undefined"sv)
return true;
}
return false;
}
String to_variant() const
{
StringBuilder builder;
builder.append("Variant<");
auto flattened_types = flattened_member_types();
for (size_t type_index = 0; type_index < flattened_types.size(); ++type_index) {
auto& type = flattened_types.at(type_index);
if (type_index > 0)
builder.append(", ");
auto cpp_type = idl_type_name_to_cpp_type(type);
builder.append(cpp_type.name);
}
if (includes_undefined())
builder.append(", Empty");
builder.append('>');
return builder.to_string();
}
};
struct Parameter {
NonnullRefPtr<Type> type;
String name;
@ -322,4 +199,127 @@ struct Interface {
bool is_legacy_platform_object() const { return !extended_attributes.contains("Global") && (supports_indexed_properties() || supports_named_properties()); }
};
CppType idl_type_name_to_cpp_type(Type const& type, IDL::Interface const& interface);
struct UnionType : public Type {
UnionType() = default;
UnionType(String name, bool nullable, NonnullRefPtrVector<Type> member_types)
: Type(move(name), nullable)
, member_types(move(member_types))
{
}
virtual ~UnionType() override = default;
NonnullRefPtrVector<Type> member_types;
// https://webidl.spec.whatwg.org/#dfn-flattened-union-member-types
NonnullRefPtrVector<Type> flattened_member_types() const
{
// 1. Let T be the union type.
// 2. Initialize S to ∅.
NonnullRefPtrVector<Type> types;
// 3. For each member type U of T:
for (auto& type : member_types) {
// FIXME: 1. If U is an annotated type, then set U to be the inner type of U.
// 2. If U is a nullable type, then set U to be the inner type of U. (NOTE: Not necessary as nullable is stored with Type and not as a separate struct)
// 3. If U is a union type, then add to S the flattened member types of U.
if (is<UnionType>(type)) {
auto& union_member_type = verify_cast<UnionType>(type);
types.extend(union_member_type.flattened_member_types());
} else {
// 4. Otherwise, U is not a union type. Add U to S.
types.append(type);
}
}
// 4. Return S.
return types;
}
// https://webidl.spec.whatwg.org/#dfn-number-of-nullable-member-types
size_t number_of_nullable_member_types() const
{
// 1. Let T be the union type.
// 2. Initialize n to 0.
size_t num_nullable_member_types = 0;
// 3. For each member type U of T:
for (auto& type : member_types) {
// 1. If U is a nullable type, then:
if (type.nullable) {
// 1. Set n to n + 1.
++num_nullable_member_types;
// 2. Set U to be the inner type of U. (NOTE: Not necessary as nullable is stored with Type and not as a separate struct)
}
// 2. If U is a union type, then:
if (is<UnionType>(type)) {
auto& union_member_type = verify_cast<UnionType>(type);
// 1. Let m be the number of nullable member types of U.
// 2. Set n to n + m.
num_nullable_member_types += union_member_type.number_of_nullable_member_types();
}
}
// 4. Return n.
return num_nullable_member_types;
}
// https://webidl.spec.whatwg.org/#dfn-includes-a-nullable-type
bool includes_nullable_type() const
{
// -> the type is a union type and its number of nullable member types is 1.
return number_of_nullable_member_types() == 1;
}
// -> https://webidl.spec.whatwg.org/#dfn-includes-undefined
bool includes_undefined() const
{
// -> the type is a union type and one of its member types includes undefined.
for (auto& type : member_types) {
if (is<UnionType>(type)) {
auto& union_type = verify_cast<UnionType>(type);
if (union_type.includes_undefined())
return true;
}
if (type.name == "undefined"sv)
return true;
}
return false;
}
String to_variant(IDL::Interface const& interface) const
{
StringBuilder builder;
builder.append("Variant<");
auto flattened_types = flattened_member_types();
for (size_t type_index = 0; type_index < flattened_types.size(); ++type_index) {
auto& type = flattened_types.at(type_index);
if (type_index > 0)
builder.append(", ");
auto cpp_type = idl_type_name_to_cpp_type(type, interface);
builder.append(cpp_type.name);
}
if (includes_undefined())
builder.append(", Empty");
builder.append('>');
return builder.to_string();
}
};
}