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LibWeb: Use more verbose input in CSS transform function generator

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Aliaksandr Kalenik 2022-10-26 16:09:20 +03:00 • committed by Sam Atkins
parent 4bf587811f
commit f099e2aa12
3 changed files with 94 additions and 62 deletions
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74
Meta/Lagom/Tools/CodeGenerators/LibWeb/GenerateCSSTransformFunctions.cpp
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@ -58,6 +58,7 @@ ErrorOr<void> generate_header_file(JsonObject& transforms_data, Core::Stream::Fi
#include <AK/Optional.h>
#include <AK/StringView.h>
#include <AK/Vector.h>
namespace Web::CSS {
@ -81,10 +82,13 @@ enum class TransformFunctionParameterType {
Number,
};
struct TransformFunctionParameter {
TransformFunctionParameterType type;
bool required;
};
struct TransformFunctionMetadata {
size_t min_parameters;
size_t max_parameters;
TransformFunctionParameterType parameter_type;
Vector<TransformFunctionParameter> parameters;
};
TransformFunctionMetadata transform_function_metadata(TransformFunction);
)~~~");
@ -153,48 +157,40 @@ TransformFunctionMetadata transform_function_metadata(TransformFunction transfor
)~~~");
transforms_data.for_each_member([&](auto& name, auto& value) {
VERIFY(value.is_object());
auto parameters_string = value.as_object().get("parameters"sv).as_string();
GenericLexer lexer { parameters_string };
VERIFY(lexer.consume_specific('<'));
auto parameter_type_name = lexer.consume_until('>');
VERIFY(lexer.consume_specific('>'));
StringView parameter_type = ""sv;
if (parameter_type_name == "angle"sv)
parameter_type = "Angle"sv;
else if (parameter_type_name == "length-percentage"sv)
parameter_type = "LengthPercentage"sv;
else if (parameter_type_name == "number"sv)
parameter_type = "Number"sv;
else
VERIFY_NOT_REACHED();
StringView min_parameters = "1"sv;
StringView max_parameters = "1"sv;
if (!lexer.is_eof()) {
VERIFY(lexer.consume_specific('{'));
min_parameters = lexer.consume_until([](auto c) { return c == ',' || c == '}'; });
if (lexer.consume_specific(','))
max_parameters = lexer.consume_until('}');
else
max_parameters = min_parameters;
VERIFY(lexer.consume_specific('}'));
}
VERIFY(lexer.is_eof());
auto member_generator = generator.fork();
member_generator.set("name:titlecase", title_casify_transform_function(name));
member_generator.set("min_parameters", min_parameters);
member_generator.set("max_parameters", max_parameters);
member_generator.set("parameter_type", parameter_type);
member_generator.append(R"~~~(
case TransformFunction::@name:titlecase@:
return TransformFunctionMetadata {
.min_parameters = @min_parameters@,
.max_parameters = @max_parameters@,
.parameter_type = TransformFunctionParameterType::@parameter_type@
};
.parameters = {)~~~");
const JsonArray& parameters = value.as_object().get("parameters"sv).as_array();
bool first = true;
parameters.for_each([&](JsonValue const& value) {
GenericLexer lexer { value.as_object().get("type"sv).as_string() };
VERIFY(lexer.consume_specific('<'));
auto parameter_type_name = lexer.consume_until('>');
VERIFY(lexer.consume_specific('>'));
StringView parameter_type = ""sv;
if (parameter_type_name == "angle"sv)
parameter_type = "Angle"sv;
else if (parameter_type_name == "length-percentage"sv)
parameter_type = "LengthPercentage"sv;
else if (parameter_type_name == "number"sv)
parameter_type = "Number"sv;
else
VERIFY_NOT_REACHED();
member_generator.append(first ? " "sv : ", "sv);
first = false;
member_generator.append(String::formatted("{{ TransformFunctionParameterType::{}, {}}}", parameter_type, value.as_object().get("required"sv).to_string()));
});
member_generator.append(R"~~~( }
};
)~~~");
});
generator.append(R"~~~(