cesium-native/tools/generate-gltf-classes/resolveProperty.js

421 lines
12 KiB
JavaScript

const getNameFromSchema = require("./getNameFromSchema");
const unindent = require("./unindent");
const indent = require("./indent");
const makeIdentifier = require("./makeIdentifier");
function resolveProperty(
schemaCache,
config,
parentName,
propertyName,
propertyDetails,
required
) {
if (Object.keys(propertyDetails).length === 0) {
// Ignore totally empty properties.
return undefined;
}
// If we don't know what's required, act as if everything is.
// Specifically this means we _don't_ make it optional.
const isRequired = required === undefined || required.includes(propertyName);
const makeOptional = !isRequired && propertyDetails.default === undefined;
if (propertyDetails.type == "array") {
return resolveArray(
schemaCache,
config,
parentName,
propertyName,
propertyDetails,
required
);
} else if (propertyDetails.type == "integer") {
return {
...propertyDefaults(propertyName, propertyDetails),
headers: ["<cstdint>", ...(makeOptional ? ["<optional>"] : [])],
type: makeOptional ? "std::optional<int64_t>" : "int64_t",
readerHeaders: [`"CesiumJsonReader/IntegerJsonHandler.h"`],
readerType: "CesiumJsonReader::IntegerJsonHandler<int64_t>",
needsInitialization: !makeOptional
};
} else if (propertyDetails.type == "number") {
return {
...propertyDefaults(propertyName, propertyDetails),
headers: makeOptional ? ["<optional>"] : [],
type: makeOptional ? "std::optional<double>" : "double",
readerHeaders: [`"CesiumJsonReader/DoubleJsonHandler.h"`],
readerType: "CesiumJsonReader::DoubleJsonHandler",
needsInitialization: !makeOptional
};
} else if (propertyDetails.type == "boolean") {
return {
...propertyDefaults(propertyName, propertyDetails),
headers: makeOptional ? ["<optional>"] : [],
type: makeOptional ? "std::optional<bool>" : "bool",
readerHeaders: `"CesiumJsonReader/BoolJsonHandler.h"`,
readerType: "CesiumJsonReader::BoolJsonHandler",
needsInitialization: ~makeOptional
};
} else if (propertyDetails.type == "string") {
return {
...propertyDefaults(propertyName, propertyDetails),
type: makeOptional ? "std::optional<std::string>" : "std::string",
headers: ["<string>", ...(makeOptional ? ["<optional>"] : [])],
readerHeaders: [`"CesiumJsonReader/StringJsonHandler.h"`],
readerType: "CesiumJsonReader::StringJsonHandler",
};
} else if (
propertyDetails.type == "object" &&
propertyDetails.additionalProperties
) {
return resolveDictionary(
schemaCache,
config,
parentName,
propertyName,
propertyDetails,
required
);
} else if (
propertyDetails.anyOf &&
propertyDetails.anyOf.length > 0 &&
propertyDetails.anyOf[0].enum
) {
return resolveEnum(
schemaCache,
config,
parentName,
propertyName,
propertyDetails,
makeOptional
);
} else if (propertyDetails.$ref) {
const itemSchema = schemaCache.load(propertyDetails.$ref);
if (itemSchema.title === "glTF Id") {
return {
...propertyDefaults(propertyName, propertyDetails),
type: "int32_t",
defaultValue: -1,
headers: ["<cstdint>"],
readerHeaders: [`"CesiumJsonReader/IntegerJsonHandler.h"`],
readerType: "CesiumJsonReader::IntegerJsonHandler<int32_t>",
};
} else {
const type = getNameFromSchema(config, itemSchema);
const typeName = getNameFromSchema(config, itemSchema);
return {
...propertyDefaults(propertyName, propertyDetails),
type: makeOptional ? `std::optional<${typeName}>` : typeName,
headers: [`"CesiumGltf/${type}.h"`, ...(makeOptional ? ["<optional>"] : [])],
readerType: `${type}JsonHandler`,
readerHeaders: [`"${type}JsonHandler.h"`],
schemas: [itemSchema],
};
}
} else if (propertyDetails.allOf && propertyDetails.allOf.length == 1) {
const nested = resolveProperty(
schemaCache,
config,
parentName,
propertyName,
propertyDetails.allOf[0],
required,
);
return {
...nested,
briefDoc: propertyDefaults(propertyName, propertyDetails).briefDoc,
fullDoc: propertyDefaults(propertyName, propertyDetails).fullDoc,
};
} else {
console.warn(`Skipping unhandled property ${propertyName}.`);
return undefined;
}
}
function toPascalCase(name) {
if (name.length === 0) {
return name;
}
return name[0].toUpperCase() + name.substr(1);
}
function propertyDefaults(propertyName, propertyDetails) {
const fullDoc =
propertyDetails.gltf_detailedDescription &&
propertyDetails.gltf_detailedDescription.indexOf(
propertyDetails.description
) === 0
? propertyDetails.gltf_detailedDescription
.substr(propertyDetails.description.length)
.trim()
: propertyDetails.gltf_detailedDescription;
return {
name: propertyName,
headers: [],
readerHeaders: [],
readerHeadersImpl: [],
type: "",
defaultValue: propertyDetails.default !== undefined ? propertyDetails.default.toString() : undefined,
readerType: "",
schemas: [],
localTypes: [],
readerLocalTypes: [],
readerLocalTypesImpl: [],
briefDoc: propertyDetails.description,
fullDoc: fullDoc,
};
}
function resolveArray(
schemaCache,
config,
parentName,
propertyName,
propertyDetails,
required
) {
const itemProperty = resolveProperty(
schemaCache,
config,
parentName,
propertyName + ".items",
propertyDetails.items,
undefined
);
if (!itemProperty) {
return undefined;
}
return {
...propertyDefaults(propertyName, propertyDetails),
name: propertyName,
headers: ["<vector>", ...itemProperty.headers],
schemas: itemProperty.schemas,
localTypes: itemProperty.localTypes,
type: `std::vector<${itemProperty.type}>`,
defaultValue: propertyDetails.default ? `{ ${propertyDetails.default} }` : undefined,
readerHeaders: [`"CesiumJsonReader/ArrayJsonHandler.h"`, ...itemProperty.readerHeaders],
readerType: `CesiumJsonReader::ArrayJsonHandler<${itemProperty.type}, ${itemProperty.readerType}>`,
};
}
function resolveDictionary(
schemaCache,
config,
parentName,
propertyName,
propertyDetails,
required
) {
const additional = resolveProperty(
schemaCache,
config,
parentName,
propertyName + ".additionalProperties",
propertyDetails.additionalProperties,
required
);
if (!additional) {
return undefined;
}
return {
...propertyDefaults(propertyName, propertyDetails),
name: propertyName,
headers: ["<unordered_map>", ...additional.headers],
schema: additional.schemas,
localTypes: additional.localTypes,
type: `std::unordered_map<std::string, ${additional.type}>`,
readerHeaders: [`"CesiumJsonReader/DictionaryJsonHandler.h"`, ...additional.readerHeaders],
readerType: `CesiumJsonReader::DictionaryJsonHandler<${additional.type}, ${additional.readerType}>`,
};
}
/**
* @brief Creates a documentation comment block for the given property.
*
* The result will be a (non-indented) doxygen comment block that contains
* the `briefDoc` (or `name`) and `fullDoc` from the given property values.
*
* @param {Object} propertyValues The property
* @return {String} The comment block
*/
function createPropertyDoc(propertyValues) {
let propertyDoc = `/**\n * @brief ${propertyValues.briefDoc || propertyValues.name}\n`;
if (propertyValues.fullDoc) {
propertyDoc += ` *\n * ${propertyValues.fullDoc.split("\n").join("\n * ")}\n`;
}
propertyDoc += ` */`;
return propertyDoc;
}
function resolveEnum(
schemaCache,
config,
parentName,
propertyName,
propertyDetails,
makeOptional
) {
if (
!propertyDetails.anyOf ||
propertyDetails.anyOf.length === 0 ||
!propertyDetails.anyOf[0].enum ||
propertyDetails.anyOf[0].enum.length === 0
) {
return undefined;
}
const enumName = toPascalCase(propertyName);
const readerTypes = createEnumReaderType(
parentName,
enumName,
propertyName,
propertyDetails
);
const propertyDefaultValues = propertyDefaults(propertyName, propertyDetails);
const result = {
...propertyDefaultValues,
localTypes: [
unindent(`
${createPropertyDoc(propertyDefaultValues)}
enum class ${toPascalCase(propertyName)} {
${indent(
propertyDetails.anyOf
.map((e) => createEnum(e))
.filter((e) => e !== undefined)
.join(",\n\n"),
12
)}
};
`),
],
type: makeOptional ? `std::optional<${enumName}>` : enumName,
headers: makeOptional ? ["<optional>"] : [],
defaultValue: createEnumDefault(enumName, propertyDetails),
readerHeaders: [`"CesiumGltf/${parentName}.h"`],
readerLocalTypes: readerTypes,
readerLocalTypesImpl: createEnumReaderTypeImpl(
parentName,
enumName,
propertyName,
propertyDetails
),
needsInitialization: !makeOptional
};
if (readerTypes.length > 0) {
result.readerType = `${enumName}JsonHandler`;
} else {
result.readerType = `CesiumJsonReader::IntegerJsonHandler<${parentName}::${enumName}>`;
result.readerHeaders.push(`"CesiumJsonReader/IntegerJsonHandler.h"`);
}
return result;
}
function createEnumDefault(enumName, propertyDetails) {
if (propertyDetails.default === undefined) {
return undefined;
}
if (propertyDetails.anyOf[0].type === "integer") {
return `${enumName}(${propertyDetails.default})`;
} else {
return `${enumName}::${propertyDetails.default}`;
}
}
function createEnum(enumDetails) {
if (!enumDetails.enum || enumDetails.enum.length === 0) {
return undefined;
}
if (enumDetails.type === "integer") {
return `${makeIdentifier(enumDetails.description)} = ${
enumDetails.enum[0]
}`;
} else {
return makeIdentifier(enumDetails.enum[0]);
}
}
function createEnumReaderType(
parentName,
enumName,
propertyName,
propertyDetails
) {
if (propertyDetails.anyOf[0].type === "integer") {
// No special reader needed for integer enums.
return [];
}
return unindent(`
class ${enumName}JsonHandler : public CesiumJsonReader::JsonHandler {
public:
${enumName}JsonHandler() noexcept : CesiumJsonReader::JsonHandler() {}
void reset(CesiumJsonReader::IJsonHandler* pParent, ${parentName}::${enumName}* pEnum);
virtual CesiumJsonReader::IJsonHandler* readString(const std::string_view& str) override;
private:
${parentName}::${enumName}* _pEnum = nullptr;
};
`);
}
function createEnumReaderTypeImpl(
parentName,
enumName,
propertyName,
propertyDetails
) {
if (propertyDetails.anyOf[0].type === "integer") {
// No special reader needed for integer enums.
return [];
}
return unindent(`
void ${parentName}JsonHandler::${enumName}JsonHandler::reset(CesiumJsonReader::IJsonHandler* pParent, ${parentName}::${enumName}* pEnum) {
JsonHandler::reset(pParent);
this->_pEnum = pEnum;
}
CesiumJsonReader::IJsonHandler* ${parentName}JsonHandler::${enumName}JsonHandler::readString(const std::string_view& str) {
using namespace std::string_literals;
assert(this->_pEnum);
${indent(
propertyDetails.anyOf
.map((e) =>
e.enum && e.enum[0] !== undefined
? `if ("${
e.enum[0]
}"s == str) *this->_pEnum = ${parentName}::${enumName}::${makeIdentifier(
e.enum[0]
)};`
: undefined
)
.filter((s) => s !== undefined)
.join("\nelse "),
6
)}
else return nullptr;
return this->parent();
}
`);
}
module.exports = resolveProperty;