first commit

node_modules/@react-native/codegen/lib/parsers/flow/components/commands.js

@@ -0,0 +1,187 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ *
+ * @format
+ */
+
+'use strict';
+
+const {getValueFromTypes} = require('../utils.js');
+
+// $FlowFixMe[unclear-type] there's no flowtype for ASTs
+
+function buildCommandSchema(property, types, parser) {
+  const name = property.key.name;
+  const optional = property.optional;
+  const value = getValueFromTypes(property.value, types);
+  const firstParam = value.params[0].typeAnnotation;
+  if (
+    !(
+      firstParam.id != null &&
+      firstParam.id.type === 'QualifiedTypeIdentifier' &&
+      firstParam.id.qualification.name === 'React' &&
+      firstParam.id.id.name === 'ElementRef'
+    )
+  ) {
+    throw new Error(
+      `The first argument of method ${name} must be of type React.ElementRef<>`,
+    );
+  }
+  const params = value.params.slice(1).map(param => {
+    const paramName = param.name.name;
+    const paramValue = getValueFromTypes(param.typeAnnotation, types);
+    const type =
+      paramValue.type === 'GenericTypeAnnotation'
+        ? parser.getTypeAnnotationName(paramValue)
+        : paramValue.type;
+    let returnType;
+    switch (type) {
+      case 'RootTag':
+        returnType = {
+          type: 'ReservedTypeAnnotation',
+          name: 'RootTag',
+        };
+        break;
+      case 'BooleanTypeAnnotation':
+        returnType = {
+          type: 'BooleanTypeAnnotation',
+        };
+        break;
+      case 'Int32':
+        returnType = {
+          type: 'Int32TypeAnnotation',
+        };
+        break;
+      case 'Double':
+        returnType = {
+          type: 'DoubleTypeAnnotation',
+        };
+        break;
+      case 'Float':
+        returnType = {
+          type: 'FloatTypeAnnotation',
+        };
+        break;
+      case 'StringTypeAnnotation':
+        returnType = {
+          type: 'StringTypeAnnotation',
+        };
+        break;
+      case 'Array':
+      case '$ReadOnlyArray':
+        /* $FlowFixMe[invalid-compare] Error discovered during Constant
+         * Condition roll out. See https://fburl.com/workplace/4oq3zi07. */
+        if (!paramValue.type === 'GenericTypeAnnotation') {
+          throw new Error(
+            'Array and $ReadOnlyArray are GenericTypeAnnotation for array',
+          );
+        }
+        returnType = {
+          type: 'ArrayTypeAnnotation',
+          elementType: getCommandArrayElementTypeType(
+            paramValue.typeParameters.params[0],
+            parser,
+          ),
+        };
+        break;
+      case 'ArrayTypeAnnotation':
+        returnType = {
+          type: 'ArrayTypeAnnotation',
+          elementType: getCommandArrayElementTypeType(
+            paramValue.elementType,
+            parser,
+          ),
+        };
+        break;
+      default:
+        type;
+        throw new Error(
+          `Unsupported param type for method "${name}", param "${paramName}". Found ${type}`,
+        );
+    }
+    return {
+      name: paramName,
+      optional: false,
+      typeAnnotation: returnType,
+    };
+  });
+  return {
+    name,
+    optional,
+    typeAnnotation: {
+      type: 'FunctionTypeAnnotation',
+      params,
+      returnTypeAnnotation: {
+        type: 'VoidTypeAnnotation',
+      },
+    },
+  };
+}
+function getCommandArrayElementTypeType(inputType, parser) {
+  // TODO: T172453752 support more complex type annotation for array element
+  if (typeof inputType !== 'object') {
+    throw new Error('Expected an object');
+  }
+  const type =
+    inputType === null || inputType === void 0 ? void 0 : inputType.type;
+  if (inputType == null || typeof type !== 'string') {
+    throw new Error('Command array element type must be a string');
+  }
+  switch (type) {
+    case 'BooleanTypeAnnotation':
+      return {
+        type: 'BooleanTypeAnnotation',
+      };
+    case 'StringTypeAnnotation':
+      return {
+        type: 'StringTypeAnnotation',
+      };
+    case 'GenericTypeAnnotation':
+      const name =
+        typeof inputType.id === 'object'
+          ? parser.getTypeAnnotationName(inputType)
+          : null;
+      if (typeof name !== 'string') {
+        throw new Error(
+          'Expected GenericTypeAnnotation AST name to be a string',
+        );
+      }
+      switch (name) {
+        case 'Int32':
+          return {
+            type: 'Int32TypeAnnotation',
+          };
+        case 'Float':
+          return {
+            type: 'FloatTypeAnnotation',
+          };
+        case 'Double':
+          return {
+            type: 'DoubleTypeAnnotation',
+          };
+        default:
+          // This is not a great solution. This generally means its a type alias to another type
+          // like an object or union. Ideally we'd encode that in the schema so the compat-check can
+          // validate those deeper objects for breaking changes and the generators can do something smarter.
+          // As of now, the generators just create ReadableMap or (const NSArray *) which are untyped
+          return {
+            type: 'MixedTypeAnnotation',
+          };
+      }
+    default:
+      throw new Error(`Unsupported array element type ${type}`);
+  }
+}
+function getCommands(commandTypeAST, types, parser) {
+  return commandTypeAST
+    .filter(property => property.type === 'ObjectTypeProperty')
+    .map(property => buildCommandSchema(property, types, parser))
+    .filter(Boolean);
+}
+module.exports = {
+  getCommands,
+};

node_modules/@react-native/codegen/lib/parsers/flow/components/commands.js.flow

@@ -0,0 +1,238 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict
+ * @format
+ */
+
+'use strict';
+
+import type {
+  CommandParamTypeAnnotation,
+  CommandTypeAnnotation,
+  ComponentCommandArrayTypeAnnotation,
+  NamedShape,
+} from '../../../CodegenSchema.js';
+import type {Parser} from '../../parser';
+import type {TypeDeclarationMap} from '../../utils';
+
+const {getValueFromTypes} = require('../utils.js');
+
+// $FlowFixMe[unclear-type] there's no flowtype for ASTs
+type EventTypeAST = Object;
+
+function buildCommandSchema(
+  property: EventTypeAST,
+  types: TypeDeclarationMap,
+  parser: Parser,
+): $ReadOnly<{
+  name: string,
+  optional: boolean,
+  typeAnnotation: {
+    type: 'FunctionTypeAnnotation',
+    params: $ReadOnlyArray<{
+      name: string,
+      optional: boolean,
+      typeAnnotation: CommandParamTypeAnnotation,
+    }>,
+    returnTypeAnnotation: {
+      type: 'VoidTypeAnnotation',
+    },
+  },
+}> {
+  const name = property.key.name;
+  const optional = property.optional;
+  const value = getValueFromTypes(property.value, types);
+
+  const firstParam = value.params[0].typeAnnotation;
+
+  if (
+    !(
+      firstParam.id != null &&
+      firstParam.id.type === 'QualifiedTypeIdentifier' &&
+      firstParam.id.qualification.name === 'React' &&
+      firstParam.id.id.name === 'ElementRef'
+    )
+  ) {
+    throw new Error(
+      `The first argument of method ${name} must be of type React.ElementRef<>`,
+    );
+  }
+
+  const params = value.params.slice(1).map(param => {
+    const paramName = param.name.name;
+    const paramValue = getValueFromTypes(param.typeAnnotation, types);
+    const type =
+      paramValue.type === 'GenericTypeAnnotation'
+        ? parser.getTypeAnnotationName(paramValue)
+        : paramValue.type;
+    let returnType: CommandParamTypeAnnotation;
+
+    switch (type) {
+      case 'RootTag':
+        returnType = {
+          type: 'ReservedTypeAnnotation',
+          name: 'RootTag',
+        };
+        break;
+      case 'BooleanTypeAnnotation':
+        returnType = {
+          type: 'BooleanTypeAnnotation',
+        };
+        break;
+      case 'Int32':
+        returnType = {
+          type: 'Int32TypeAnnotation',
+        };
+        break;
+      case 'Double':
+        returnType = {
+          type: 'DoubleTypeAnnotation',
+        };
+        break;
+      case 'Float':
+        returnType = {
+          type: 'FloatTypeAnnotation',
+        };
+        break;
+      case 'StringTypeAnnotation':
+        returnType = {
+          type: 'StringTypeAnnotation',
+        };
+        break;
+      case 'Array':
+      case '$ReadOnlyArray':
+        /* $FlowFixMe[invalid-compare] Error discovered during Constant
+         * Condition roll out. See https://fburl.com/workplace/4oq3zi07. */
+        if (!paramValue.type === 'GenericTypeAnnotation') {
+          throw new Error(
+            'Array and $ReadOnlyArray are GenericTypeAnnotation for array',
+          );
+        }
+        returnType = {
+          type: 'ArrayTypeAnnotation',
+          elementType: getCommandArrayElementTypeType(
+            paramValue.typeParameters.params[0],
+            parser,
+          ),
+        };
+        break;
+      case 'ArrayTypeAnnotation':
+        returnType = {
+          type: 'ArrayTypeAnnotation',
+          elementType: getCommandArrayElementTypeType(
+            paramValue.elementType,
+            parser,
+          ),
+        };
+        break;
+      default:
+        (type: mixed);
+        throw new Error(
+          `Unsupported param type for method "${name}", param "${paramName}". Found ${type}`,
+        );
+    }
+
+    return {
+      name: paramName,
+      optional: false,
+      typeAnnotation: returnType,
+    };
+  });
+
+  return {
+    name,
+    optional,
+    typeAnnotation: {
+      type: 'FunctionTypeAnnotation',
+      params,
+      returnTypeAnnotation: {
+        type: 'VoidTypeAnnotation',
+      },
+    },
+  };
+}
+
+type Allowed = ComponentCommandArrayTypeAnnotation['elementType'];
+
+function getCommandArrayElementTypeType(
+  inputType: mixed,
+  parser: Parser,
+): Allowed {
+  // TODO: T172453752 support more complex type annotation for array element
+  if (typeof inputType !== 'object') {
+    throw new Error('Expected an object');
+  }
+
+  const type = inputType?.type;
+
+  if (inputType == null || typeof type !== 'string') {
+    throw new Error('Command array element type must be a string');
+  }
+
+  switch (type) {
+    case 'BooleanTypeAnnotation':
+      return {
+        type: 'BooleanTypeAnnotation',
+      };
+    case 'StringTypeAnnotation':
+      return {
+        type: 'StringTypeAnnotation',
+      };
+    case 'GenericTypeAnnotation':
+      const name =
+        typeof inputType.id === 'object'
+          ? parser.getTypeAnnotationName(inputType)
+          : null;
+
+      if (typeof name !== 'string') {
+        throw new Error(
+          'Expected GenericTypeAnnotation AST name to be a string',
+        );
+      }
+
+      switch (name) {
+        case 'Int32':
+          return {
+            type: 'Int32TypeAnnotation',
+          };
+        case 'Float':
+          return {
+            type: 'FloatTypeAnnotation',
+          };
+        case 'Double':
+          return {
+            type: 'DoubleTypeAnnotation',
+          };
+        default:
+          // This is not a great solution. This generally means its a type alias to another type
+          // like an object or union. Ideally we'd encode that in the schema so the compat-check can
+          // validate those deeper objects for breaking changes and the generators can do something smarter.
+          // As of now, the generators just create ReadableMap or (const NSArray *) which are untyped
+          return {
+            type: 'MixedTypeAnnotation',
+          };
+      }
+
+    default:
+      throw new Error(`Unsupported array element type ${type}`);
+  }
+}
+
+function getCommands(
+  commandTypeAST: $ReadOnlyArray<EventTypeAST>,
+  types: TypeDeclarationMap,
+  parser: Parser,
+): $ReadOnlyArray<NamedShape<CommandTypeAnnotation>> {
+  return commandTypeAST
+    .filter(property => property.type === 'ObjectTypeProperty')
+    .map(property => buildCommandSchema(property, types, parser))
+    .filter(Boolean);
+}
+
+module.exports = {
+  getCommands,
+};

node_modules/@react-native/codegen/lib/parsers/flow/components/componentsUtils.js

@@ -0,0 +1,453 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ *
+ * @format
+ */
+
+'use strict';
+
+const {verifyPropNotAlreadyDefined} = require('../../parsers-commons');
+const {getValueFromTypes} = require('../utils.js');
+
+// $FlowFixMe[unsupported-variance-annotation]
+function getTypeAnnotationForArray(
+  name,
+  typeAnnotation,
+  defaultValue,
+  types,
+  parser,
+  buildSchema,
+) {
+  const extractedTypeAnnotation = getValueFromTypes(typeAnnotation, types);
+  if (extractedTypeAnnotation.type === 'NullableTypeAnnotation') {
+    throw new Error(
+      'Nested optionals such as "$ReadOnlyArray<?boolean>" are not supported, please declare optionals at the top level of value definitions as in "?$ReadOnlyArray<boolean>"',
+    );
+  }
+  if (
+    extractedTypeAnnotation.type === 'GenericTypeAnnotation' &&
+    parser.getTypeAnnotationName(extractedTypeAnnotation) === 'WithDefault'
+  ) {
+    throw new Error(
+      'Nested defaults such as "$ReadOnlyArray<WithDefault<boolean, false>>" are not supported, please declare defaults at the top level of value definitions as in "WithDefault<$ReadOnlyArray<boolean>, false>"',
+    );
+  }
+  if (extractedTypeAnnotation.type === 'GenericTypeAnnotation') {
+    // Resolve the type alias if it's not defined inline
+    const objectType = getValueFromTypes(extractedTypeAnnotation, types);
+    if (objectType.id.name === '$ReadOnly') {
+      return {
+        type: 'ObjectTypeAnnotation',
+        properties: flattenProperties(
+          objectType.typeParameters.params[0].properties,
+          types,
+          parser,
+        )
+          .map(prop => buildSchema(prop, types, parser))
+          .filter(Boolean),
+      };
+    }
+    if (objectType.id.name === '$ReadOnlyArray') {
+      // We need to go yet another level deeper to resolve
+      // types that may be defined in a type alias
+      const nestedObjectType = getValueFromTypes(
+        objectType.typeParameters.params[0],
+        types,
+      );
+      return {
+        type: 'ArrayTypeAnnotation',
+        elementType: {
+          type: 'ObjectTypeAnnotation',
+          properties: flattenProperties(
+            nestedObjectType.typeParameters.params[0].properties,
+            types,
+            parser,
+          )
+            .map(prop => buildSchema(prop, types, parser))
+            .filter(Boolean),
+        },
+      };
+    }
+  }
+  const type =
+    extractedTypeAnnotation.type === 'GenericTypeAnnotation'
+      ? parser.getTypeAnnotationName(extractedTypeAnnotation)
+      : extractedTypeAnnotation.type;
+  switch (type) {
+    case 'ImageSource':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ImageSourcePrimitive',
+      };
+    case 'ImageRequest':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ImageRequestPrimitive',
+      };
+    case 'ColorValue':
+    case 'ProcessedColorValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ColorPrimitive',
+      };
+    case 'PointValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'PointPrimitive',
+      };
+    case 'EdgeInsetsValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'EdgeInsetsPrimitive',
+      };
+    case 'DimensionValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'DimensionPrimitive',
+      };
+    case 'Stringish':
+      return {
+        type: 'StringTypeAnnotation',
+      };
+    case 'Int32':
+      return {
+        type: 'Int32TypeAnnotation',
+      };
+    case 'Double':
+      return {
+        type: 'DoubleTypeAnnotation',
+      };
+    case 'Float':
+      return {
+        type: 'FloatTypeAnnotation',
+      };
+    case 'BooleanTypeAnnotation':
+      return {
+        type: 'BooleanTypeAnnotation',
+      };
+    case 'StringTypeAnnotation':
+      return {
+        type: 'StringTypeAnnotation',
+      };
+    case 'UnsafeMixed':
+      return {
+        type: 'MixedTypeAnnotation',
+      };
+    case 'UnionTypeAnnotation':
+      typeAnnotation.types.reduce((lastType, currType) => {
+        if (lastType && currType.type !== lastType.type) {
+          throw new Error(`Mixed types are not supported (see "${name}")`);
+        }
+        return currType;
+      });
+      if (defaultValue === null) {
+        throw new Error(`A default enum value is required for "${name}"`);
+      }
+      const unionType = typeAnnotation.types[0].type;
+      if (unionType === 'StringLiteralTypeAnnotation') {
+        return {
+          type: 'StringEnumTypeAnnotation',
+          default: defaultValue,
+          options: typeAnnotation.types.map(option => option.value),
+        };
+      } else if (unionType === 'NumberLiteralTypeAnnotation') {
+        throw new Error(
+          `Arrays of int enums are not supported (see: "${name}")`,
+        );
+      } else {
+        throw new Error(
+          `Unsupported union type for "${name}", received "${unionType}"`,
+        );
+      }
+    default:
+      throw new Error(`Unknown property type for "${name}": ${type}`);
+  }
+}
+function flattenProperties(typeDefinition, types, parser) {
+  return typeDefinition
+    .map(property => {
+      if (property.type === 'ObjectTypeProperty') {
+        return property;
+      } else if (property.type === 'ObjectTypeSpreadProperty') {
+        return flattenProperties(
+          parser.getProperties(property.argument.id.name, types),
+          types,
+          parser,
+        );
+      }
+    })
+    .reduce((acc, item) => {
+      if (Array.isArray(item)) {
+        item.forEach(prop => {
+          verifyPropNotAlreadyDefined(acc, prop);
+        });
+        return acc.concat(item);
+      } else {
+        verifyPropNotAlreadyDefined(acc, item);
+        acc.push(item);
+        return acc;
+      }
+    }, [])
+    .filter(Boolean);
+}
+
+// $FlowFixMe[unsupported-variance-annotation]
+function getTypeAnnotation(
+  name,
+  annotation,
+  defaultValue,
+  withNullDefault,
+  types,
+  parser,
+  buildSchema,
+) {
+  const typeAnnotation = getValueFromTypes(annotation, types);
+  if (
+    typeAnnotation.type === 'GenericTypeAnnotation' &&
+    parser.getTypeAnnotationName(typeAnnotation) === '$ReadOnlyArray'
+  ) {
+    return {
+      type: 'ArrayTypeAnnotation',
+      elementType: getTypeAnnotationForArray(
+        name,
+        typeAnnotation.typeParameters.params[0],
+        defaultValue,
+        types,
+        parser,
+        buildSchema,
+      ),
+    };
+  }
+  if (
+    typeAnnotation.type === 'GenericTypeAnnotation' &&
+    parser.getTypeAnnotationName(typeAnnotation) === '$ReadOnly'
+  ) {
+    return {
+      type: 'ObjectTypeAnnotation',
+      properties: flattenProperties(
+        typeAnnotation.typeParameters.params[0].properties,
+        types,
+        parser,
+      )
+        .map(prop => buildSchema(prop, types, parser))
+        .filter(Boolean),
+    };
+  }
+  const type =
+    typeAnnotation.type === 'GenericTypeAnnotation'
+      ? parser.getTypeAnnotationName(typeAnnotation)
+      : typeAnnotation.type;
+  switch (type) {
+    case 'ImageSource':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ImageSourcePrimitive',
+      };
+    case 'ImageRequest':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ImageRequestPrimitive',
+      };
+    case 'ColorValue':
+    case 'ProcessedColorValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ColorPrimitive',
+      };
+    case 'ColorArrayValue':
+      return {
+        type: 'ArrayTypeAnnotation',
+        elementType: {
+          type: 'ReservedPropTypeAnnotation',
+          name: 'ColorPrimitive',
+        },
+      };
+    case 'PointValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'PointPrimitive',
+      };
+    case 'EdgeInsetsValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'EdgeInsetsPrimitive',
+      };
+    case 'DimensionValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'DimensionPrimitive',
+      };
+    case 'Int32':
+      return {
+        type: 'Int32TypeAnnotation',
+        default: defaultValue ? defaultValue : 0,
+      };
+    case 'Double':
+      return {
+        type: 'DoubleTypeAnnotation',
+        default: defaultValue ? defaultValue : 0,
+      };
+    case 'Float':
+      return {
+        type: 'FloatTypeAnnotation',
+        default: withNullDefault
+          ? defaultValue
+          : defaultValue
+            ? defaultValue
+            : 0,
+      };
+    case 'BooleanTypeAnnotation':
+      return {
+        type: 'BooleanTypeAnnotation',
+        default: withNullDefault
+          ? defaultValue
+          : defaultValue == null
+            ? false
+            : defaultValue,
+      };
+    case 'StringTypeAnnotation':
+      if (typeof defaultValue !== 'undefined') {
+        return {
+          type: 'StringTypeAnnotation',
+          default: defaultValue,
+        };
+      }
+      throw new Error(`A default string (or null) is required for "${name}"`);
+    case 'Stringish':
+      if (typeof defaultValue !== 'undefined') {
+        return {
+          type: 'StringTypeAnnotation',
+          default: defaultValue,
+        };
+      }
+      throw new Error(`A default string (or null) is required for "${name}"`);
+    case 'UnionTypeAnnotation':
+      typeAnnotation.types.reduce((lastType, currType) => {
+        if (lastType && currType.type !== lastType.type) {
+          throw new Error(`Mixed types are not supported (see "${name}").`);
+        }
+        return currType;
+      });
+      if (defaultValue === null) {
+        throw new Error(`A default enum value is required for "${name}"`);
+      }
+      const unionType = typeAnnotation.types[0].type;
+      if (unionType === 'StringLiteralTypeAnnotation') {
+        return {
+          type: 'StringEnumTypeAnnotation',
+          default: defaultValue,
+          options: typeAnnotation.types.map(option => option.value),
+        };
+      } else if (unionType === 'NumberLiteralTypeAnnotation') {
+        return {
+          type: 'Int32EnumTypeAnnotation',
+          default: defaultValue,
+          options: typeAnnotation.types.map(option => option.value),
+        };
+      } else {
+        throw new Error(
+          `Unsupported union type for "${name}", received "${unionType}"`,
+        );
+      }
+    case 'ObjectTypeAnnotation':
+      throw new Error(
+        `Cannot use "${type}" type annotation for "${name}": object types must be declared using $ReadOnly<>`,
+      );
+    case 'NumberTypeAnnotation':
+      throw new Error(
+        `Cannot use "${type}" type annotation for "${name}": must use a specific numeric type like Int32, Double, or Float`,
+      );
+    case 'UnsafeMixed':
+      return {
+        type: 'MixedTypeAnnotation',
+      };
+    default:
+      throw new Error(
+        `Unknown property type for "${name}": "${type}" in the State`,
+      );
+  }
+}
+function getSchemaInfo(property, types, parser) {
+  const name = property.key.name;
+  const value = getValueFromTypes(property.value, types);
+  let typeAnnotation =
+    value.type === 'NullableTypeAnnotation' ? value.typeAnnotation : value;
+  let typeAnnotationName = parser.getTypeAnnotationName(typeAnnotation);
+  const optional =
+    value.type === 'NullableTypeAnnotation' ||
+    property.optional ||
+    (value.type === 'GenericTypeAnnotation' &&
+      typeAnnotationName === 'WithDefault');
+  if (
+    !property.optional &&
+    value.type === 'GenericTypeAnnotation' &&
+    typeAnnotationName === 'WithDefault'
+  ) {
+    throw new Error(
+      `key ${name} must be optional if used with WithDefault<> annotation`,
+    );
+  }
+  if (
+    value.type === 'NullableTypeAnnotation' &&
+    typeAnnotation.type === 'GenericTypeAnnotation' &&
+    typeAnnotationName === 'WithDefault'
+  ) {
+    throw new Error(
+      'WithDefault<> is optional and does not need to be marked as optional. Please remove the ? annotation in front of it.',
+    );
+  }
+  let type = typeAnnotation.type;
+  if (
+    type === 'GenericTypeAnnotation' &&
+    (typeAnnotationName === 'DirectEventHandler' ||
+      typeAnnotationName === 'BubblingEventHandler')
+  ) {
+    return null;
+  }
+  if (
+    name === 'style' &&
+    type === 'GenericTypeAnnotation' &&
+    typeAnnotationName === 'ViewStyleProp'
+  ) {
+    return null;
+  }
+  let defaultValue = null;
+  let withNullDefault = false;
+  if (
+    type === 'GenericTypeAnnotation' &&
+    typeAnnotationName === 'WithDefault'
+  ) {
+    if (typeAnnotation.typeParameters.params.length === 1) {
+      throw new Error(
+        `WithDefault requires two parameters, did you forget to provide a default value for "${name}"?`,
+      );
+    }
+    defaultValue = typeAnnotation.typeParameters.params[1].value;
+    const defaultValueType = typeAnnotation.typeParameters.params[1].type;
+    typeAnnotation = typeAnnotation.typeParameters.params[0];
+    type =
+      typeAnnotation.type === 'GenericTypeAnnotation'
+        ? typeAnnotationName
+        : typeAnnotation.type;
+    if (defaultValueType === 'NullLiteralTypeAnnotation') {
+      defaultValue = null;
+      withNullDefault = true;
+    }
+  }
+  return {
+    name,
+    optional,
+    typeAnnotation,
+    defaultValue,
+    withNullDefault,
+  };
+}
+module.exports = {
+  getSchemaInfo,
+  getTypeAnnotation,
+  flattenProperties,
+};

node_modules/@react-native/codegen/lib/parsers/flow/components/componentsUtils.js.flow

@@ -0,0 +1,496 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict
+ * @format
+ */
+
+'use strict';
+
+import type {BuildSchemaFN, Parser} from '../../parser';
+import type {ASTNode, PropAST, TypeDeclarationMap} from '../../utils';
+
+const {verifyPropNotAlreadyDefined} = require('../../parsers-commons');
+const {getValueFromTypes} = require('../utils.js');
+
+// $FlowFixMe[unsupported-variance-annotation]
+function getTypeAnnotationForArray<+T>(
+  name: string,
+  typeAnnotation: $FlowFixMe,
+  defaultValue: $FlowFixMe | null,
+  types: TypeDeclarationMap,
+  parser: Parser,
+  buildSchema: BuildSchemaFN<T>,
+): $FlowFixMe {
+  const extractedTypeAnnotation = getValueFromTypes(typeAnnotation, types);
+  if (extractedTypeAnnotation.type === 'NullableTypeAnnotation') {
+    throw new Error(
+      'Nested optionals such as "$ReadOnlyArray<?boolean>" are not supported, please declare optionals at the top level of value definitions as in "?$ReadOnlyArray<boolean>"',
+    );
+  }
+
+  if (
+    extractedTypeAnnotation.type === 'GenericTypeAnnotation' &&
+    parser.getTypeAnnotationName(extractedTypeAnnotation) === 'WithDefault'
+  ) {
+    throw new Error(
+      'Nested defaults such as "$ReadOnlyArray<WithDefault<boolean, false>>" are not supported, please declare defaults at the top level of value definitions as in "WithDefault<$ReadOnlyArray<boolean>, false>"',
+    );
+  }
+
+  if (extractedTypeAnnotation.type === 'GenericTypeAnnotation') {
+    // Resolve the type alias if it's not defined inline
+    const objectType = getValueFromTypes(extractedTypeAnnotation, types);
+
+    if (objectType.id.name === '$ReadOnly') {
+      return {
+        type: 'ObjectTypeAnnotation',
+        properties: flattenProperties(
+          objectType.typeParameters.params[0].properties,
+          types,
+          parser,
+        )
+          .map(prop => buildSchema(prop, types, parser))
+          .filter(Boolean),
+      };
+    }
+
+    if (objectType.id.name === '$ReadOnlyArray') {
+      // We need to go yet another level deeper to resolve
+      // types that may be defined in a type alias
+      const nestedObjectType = getValueFromTypes(
+        objectType.typeParameters.params[0],
+        types,
+      );
+
+      return {
+        type: 'ArrayTypeAnnotation',
+        elementType: {
+          type: 'ObjectTypeAnnotation',
+          properties: flattenProperties(
+            nestedObjectType.typeParameters.params[0].properties,
+            types,
+            parser,
+          )
+            .map(prop => buildSchema(prop, types, parser))
+            .filter(Boolean),
+        },
+      };
+    }
+  }
+
+  const type =
+    extractedTypeAnnotation.type === 'GenericTypeAnnotation'
+      ? parser.getTypeAnnotationName(extractedTypeAnnotation)
+      : extractedTypeAnnotation.type;
+
+  switch (type) {
+    case 'ImageSource':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ImageSourcePrimitive',
+      };
+    case 'ImageRequest':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ImageRequestPrimitive',
+      };
+    case 'ColorValue':
+    case 'ProcessedColorValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ColorPrimitive',
+      };
+    case 'PointValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'PointPrimitive',
+      };
+    case 'EdgeInsetsValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'EdgeInsetsPrimitive',
+      };
+    case 'DimensionValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'DimensionPrimitive',
+      };
+    case 'Stringish':
+      return {
+        type: 'StringTypeAnnotation',
+      };
+    case 'Int32':
+      return {
+        type: 'Int32TypeAnnotation',
+      };
+    case 'Double':
+      return {
+        type: 'DoubleTypeAnnotation',
+      };
+    case 'Float':
+      return {
+        type: 'FloatTypeAnnotation',
+      };
+    case 'BooleanTypeAnnotation':
+      return {
+        type: 'BooleanTypeAnnotation',
+      };
+    case 'StringTypeAnnotation':
+      return {
+        type: 'StringTypeAnnotation',
+      };
+    case 'UnsafeMixed':
+      return {
+        type: 'MixedTypeAnnotation',
+      };
+    case 'UnionTypeAnnotation':
+      typeAnnotation.types.reduce((lastType, currType) => {
+        if (lastType && currType.type !== lastType.type) {
+          throw new Error(`Mixed types are not supported (see "${name}")`);
+        }
+        return currType;
+      });
+
+      if (defaultValue === null) {
+        throw new Error(`A default enum value is required for "${name}"`);
+      }
+
+      const unionType = typeAnnotation.types[0].type;
+      if (unionType === 'StringLiteralTypeAnnotation') {
+        return {
+          type: 'StringEnumTypeAnnotation',
+          default: (defaultValue: string),
+          options: typeAnnotation.types.map(option => option.value),
+        };
+      } else if (unionType === 'NumberLiteralTypeAnnotation') {
+        throw new Error(
+          `Arrays of int enums are not supported (see: "${name}")`,
+        );
+      } else {
+        throw new Error(
+          `Unsupported union type for "${name}", received "${unionType}"`,
+        );
+      }
+    default:
+      throw new Error(`Unknown property type for "${name}": ${type}`);
+  }
+}
+
+function flattenProperties(
+  typeDefinition: $ReadOnlyArray<PropAST>,
+  types: TypeDeclarationMap,
+  parser: Parser,
+): $ReadOnlyArray<PropAST> {
+  return typeDefinition
+    .map(property => {
+      if (property.type === 'ObjectTypeProperty') {
+        return property;
+      } else if (property.type === 'ObjectTypeSpreadProperty') {
+        return flattenProperties(
+          parser.getProperties(property.argument.id.name, types),
+          types,
+          parser,
+        );
+      }
+    })
+    .reduce((acc: Array<PropAST>, item) => {
+      if (Array.isArray(item)) {
+        item.forEach(prop => {
+          verifyPropNotAlreadyDefined(acc, prop);
+        });
+        return acc.concat(item);
+      } else {
+        verifyPropNotAlreadyDefined(acc, item);
+        acc.push(item);
+        return acc;
+      }
+    }, [])
+    .filter(Boolean);
+}
+
+// $FlowFixMe[unsupported-variance-annotation]
+function getTypeAnnotation<+T>(
+  name: string,
+  annotation: $FlowFixMe | ASTNode,
+  defaultValue: $FlowFixMe | null,
+  withNullDefault: boolean,
+  types: TypeDeclarationMap,
+  parser: Parser,
+  buildSchema: BuildSchemaFN<T>,
+): $FlowFixMe {
+  const typeAnnotation = getValueFromTypes(annotation, types);
+
+  if (
+    typeAnnotation.type === 'GenericTypeAnnotation' &&
+    parser.getTypeAnnotationName(typeAnnotation) === '$ReadOnlyArray'
+  ) {
+    return {
+      type: 'ArrayTypeAnnotation',
+      elementType: getTypeAnnotationForArray(
+        name,
+        typeAnnotation.typeParameters.params[0],
+        defaultValue,
+        types,
+        parser,
+        buildSchema,
+      ),
+    };
+  }
+
+  if (
+    typeAnnotation.type === 'GenericTypeAnnotation' &&
+    parser.getTypeAnnotationName(typeAnnotation) === '$ReadOnly'
+  ) {
+    return {
+      type: 'ObjectTypeAnnotation',
+      properties: flattenProperties(
+        typeAnnotation.typeParameters.params[0].properties,
+        types,
+        parser,
+      )
+        .map(prop => buildSchema(prop, types, parser))
+        .filter(Boolean),
+    };
+  }
+
+  const type =
+    typeAnnotation.type === 'GenericTypeAnnotation'
+      ? parser.getTypeAnnotationName(typeAnnotation)
+      : typeAnnotation.type;
+
+  switch (type) {
+    case 'ImageSource':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ImageSourcePrimitive',
+      };
+    case 'ImageRequest':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ImageRequestPrimitive',
+      };
+    case 'ColorValue':
+    case 'ProcessedColorValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'ColorPrimitive',
+      };
+    case 'ColorArrayValue':
+      return {
+        type: 'ArrayTypeAnnotation',
+        elementType: {
+          type: 'ReservedPropTypeAnnotation',
+          name: 'ColorPrimitive',
+        },
+      };
+    case 'PointValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'PointPrimitive',
+      };
+    case 'EdgeInsetsValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'EdgeInsetsPrimitive',
+      };
+    case 'DimensionValue':
+      return {
+        type: 'ReservedPropTypeAnnotation',
+        name: 'DimensionPrimitive',
+      };
+    case 'Int32':
+      return {
+        type: 'Int32TypeAnnotation',
+        default: ((defaultValue ? defaultValue : 0): number),
+      };
+    case 'Double':
+      return {
+        type: 'DoubleTypeAnnotation',
+        default: ((defaultValue ? defaultValue : 0): number),
+      };
+    case 'Float':
+      return {
+        type: 'FloatTypeAnnotation',
+        default: withNullDefault
+          ? (defaultValue: number | null)
+          : ((defaultValue ? defaultValue : 0): number),
+      };
+    case 'BooleanTypeAnnotation':
+      return {
+        type: 'BooleanTypeAnnotation',
+        default: withNullDefault
+          ? (defaultValue: boolean | null)
+          : ((defaultValue == null ? false : defaultValue): boolean),
+      };
+    case 'StringTypeAnnotation':
+      if (typeof defaultValue !== 'undefined') {
+        return {
+          type: 'StringTypeAnnotation',
+          default: (defaultValue: string | null),
+        };
+      }
+      throw new Error(`A default string (or null) is required for "${name}"`);
+    case 'Stringish':
+      if (typeof defaultValue !== 'undefined') {
+        return {
+          type: 'StringTypeAnnotation',
+          default: (defaultValue: string | null),
+        };
+      }
+      throw new Error(`A default string (or null) is required for "${name}"`);
+    case 'UnionTypeAnnotation':
+      typeAnnotation.types.reduce((lastType, currType) => {
+        if (lastType && currType.type !== lastType.type) {
+          throw new Error(`Mixed types are not supported (see "${name}").`);
+        }
+        return currType;
+      });
+
+      if (defaultValue === null) {
+        throw new Error(`A default enum value is required for "${name}"`);
+      }
+
+      const unionType = typeAnnotation.types[0].type;
+      if (unionType === 'StringLiteralTypeAnnotation') {
+        return {
+          type: 'StringEnumTypeAnnotation',
+          default: (defaultValue: string),
+          options: typeAnnotation.types.map(option => option.value),
+        };
+      } else if (unionType === 'NumberLiteralTypeAnnotation') {
+        return {
+          type: 'Int32EnumTypeAnnotation',
+          default: (defaultValue: number),
+          options: typeAnnotation.types.map(option => option.value),
+        };
+      } else {
+        throw new Error(
+          `Unsupported union type for "${name}", received "${unionType}"`,
+        );
+      }
+    case 'ObjectTypeAnnotation':
+      throw new Error(
+        `Cannot use "${type}" type annotation for "${name}": object types must be declared using $ReadOnly<>`,
+      );
+    case 'NumberTypeAnnotation':
+      throw new Error(
+        `Cannot use "${type}" type annotation for "${name}": must use a specific numeric type like Int32, Double, or Float`,
+      );
+    case 'UnsafeMixed':
+      return {
+        type: 'MixedTypeAnnotation',
+      };
+    default:
+      throw new Error(
+        `Unknown property type for "${name}": "${type}" in the State`,
+      );
+  }
+}
+
+type SchemaInfo = {
+  name: string,
+  optional: boolean,
+  typeAnnotation: $FlowFixMe,
+  defaultValue: $FlowFixMe,
+  withNullDefault: boolean,
+};
+
+function getSchemaInfo(
+  property: PropAST,
+  types: TypeDeclarationMap,
+  parser: Parser,
+): ?SchemaInfo {
+  const name = property.key.name;
+
+  const value = getValueFromTypes(property.value, types);
+  let typeAnnotation =
+    value.type === 'NullableTypeAnnotation' ? value.typeAnnotation : value;
+  let typeAnnotationName = parser.getTypeAnnotationName(typeAnnotation);
+
+  const optional =
+    value.type === 'NullableTypeAnnotation' ||
+    property.optional ||
+    (value.type === 'GenericTypeAnnotation' &&
+      typeAnnotationName === 'WithDefault');
+
+  if (
+    !property.optional &&
+    value.type === 'GenericTypeAnnotation' &&
+    typeAnnotationName === 'WithDefault'
+  ) {
+    throw new Error(
+      `key ${name} must be optional if used with WithDefault<> annotation`,
+    );
+  }
+  if (
+    value.type === 'NullableTypeAnnotation' &&
+    typeAnnotation.type === 'GenericTypeAnnotation' &&
+    typeAnnotationName === 'WithDefault'
+  ) {
+    throw new Error(
+      'WithDefault<> is optional and does not need to be marked as optional. Please remove the ? annotation in front of it.',
+    );
+  }
+
+  let type = typeAnnotation.type;
+  if (
+    type === 'GenericTypeAnnotation' &&
+    (typeAnnotationName === 'DirectEventHandler' ||
+      typeAnnotationName === 'BubblingEventHandler')
+  ) {
+    return null;
+  }
+
+  if (
+    name === 'style' &&
+    type === 'GenericTypeAnnotation' &&
+    typeAnnotationName === 'ViewStyleProp'
+  ) {
+    return null;
+  }
+
+  let defaultValue = null;
+  let withNullDefault = false;
+  if (
+    type === 'GenericTypeAnnotation' &&
+    typeAnnotationName === 'WithDefault'
+  ) {
+    if (typeAnnotation.typeParameters.params.length === 1) {
+      throw new Error(
+        `WithDefault requires two parameters, did you forget to provide a default value for "${name}"?`,
+      );
+    }
+
+    defaultValue = typeAnnotation.typeParameters.params[1].value;
+    const defaultValueType = typeAnnotation.typeParameters.params[1].type;
+
+    typeAnnotation = typeAnnotation.typeParameters.params[0];
+    type =
+      typeAnnotation.type === 'GenericTypeAnnotation'
+        ? typeAnnotationName
+        : typeAnnotation.type;
+
+    if (defaultValueType === 'NullLiteralTypeAnnotation') {
+      defaultValue = null;
+      withNullDefault = true;
+    }
+  }
+
+  return {
+    name,
+    optional,
+    typeAnnotation,
+    defaultValue,
+    withNullDefault,
+  };
+}
+
+module.exports = {
+  getSchemaInfo,
+  getTypeAnnotation,
+  flattenProperties,
+};

node_modules/@react-native/codegen/lib/parsers/flow/components/events.js

@@ -0,0 +1,249 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ *
+ * @format
+ */
+
+'use strict';
+
+const {
+  throwIfArgumentPropsAreNull,
+  throwIfBubblingTypeIsNull,
+  throwIfEventHasNoName,
+} = require('../../error-utils');
+const {
+  buildPropertiesForEvent,
+  emitBuildEventSchema,
+  getEventArgument,
+  handleEventHandler,
+} = require('../../parsers-commons');
+const {
+  emitBoolProp,
+  emitDoubleProp,
+  emitFloatProp,
+  emitInt32Prop,
+  emitMixedProp,
+  emitObjectProp,
+  emitStringProp,
+  emitUnionProp,
+} = require('../../parsers-primitives');
+function getPropertyType(
+  /* $FlowFixMe[missing-local-annot] The type annotation(s) required by Flow's
+   * LTI update could not be added via codemod */
+  name,
+  optional,
+  typeAnnotation,
+  parser,
+) {
+  const type = extractTypeFromTypeAnnotation(typeAnnotation, parser);
+  switch (type) {
+    case 'BooleanTypeAnnotation':
+      return emitBoolProp(name, optional);
+    case 'StringTypeAnnotation':
+      return emitStringProp(name, optional);
+    case 'Int32':
+      return emitInt32Prop(name, optional);
+    case 'Double':
+      return emitDoubleProp(name, optional);
+    case 'Float':
+      return emitFloatProp(name, optional);
+    case '$ReadOnly':
+      return getPropertyType(
+        name,
+        optional,
+        typeAnnotation.typeParameters.params[0],
+        parser,
+      );
+    case 'ObjectTypeAnnotation':
+      return emitObjectProp(
+        name,
+        optional,
+        parser,
+        typeAnnotation,
+        extractArrayElementType,
+      );
+    case 'UnionTypeAnnotation':
+      return emitUnionProp(name, optional, parser, typeAnnotation);
+    case 'UnsafeMixed':
+      return emitMixedProp(name, optional);
+    case 'ArrayTypeAnnotation':
+    case '$ReadOnlyArray':
+      return {
+        name,
+        optional,
+        typeAnnotation: extractArrayElementType(typeAnnotation, name, parser),
+      };
+    default:
+      throw new Error(`Unable to determine event type for "${name}": ${type}`);
+  }
+}
+function extractArrayElementType(typeAnnotation, name, parser) {
+  const type = extractTypeFromTypeAnnotation(typeAnnotation, parser);
+  switch (type) {
+    case 'BooleanTypeAnnotation':
+      return {
+        type: 'BooleanTypeAnnotation',
+      };
+    case 'StringTypeAnnotation':
+      return {
+        type: 'StringTypeAnnotation',
+      };
+    case 'Int32':
+      return {
+        type: 'Int32TypeAnnotation',
+      };
+    case 'Float':
+      return {
+        type: 'FloatTypeAnnotation',
+      };
+    case 'NumberTypeAnnotation':
+    case 'Double':
+      return {
+        type: 'DoubleTypeAnnotation',
+      };
+    case 'UnionTypeAnnotation':
+      return {
+        type: 'StringLiteralUnionTypeAnnotation',
+        types: typeAnnotation.types.map(option => ({
+          type: 'StringLiteralTypeAnnotation',
+          value: parser.getLiteralValue(option),
+        })),
+      };
+    case 'UnsafeMixed':
+      return {
+        type: 'MixedTypeAnnotation',
+      };
+    case 'ObjectTypeAnnotation':
+      return {
+        type: 'ObjectTypeAnnotation',
+        properties: parser
+          .getObjectProperties(typeAnnotation)
+          .map(member =>
+            buildPropertiesForEvent(member, parser, getPropertyType),
+          ),
+      };
+    case 'ArrayTypeAnnotation':
+      return {
+        type: 'ArrayTypeAnnotation',
+        elementType: extractArrayElementType(
+          typeAnnotation.elementType,
+          name,
+          parser,
+        ),
+      };
+    case '$ReadOnlyArray':
+      const genericParams = typeAnnotation.typeParameters.params;
+      if (genericParams.length !== 1) {
+        throw new Error(
+          `Events only supports arrays with 1 Generic type. Found ${genericParams.length} types:\n${prettify(genericParams)}`,
+        );
+      }
+      return {
+        type: 'ArrayTypeAnnotation',
+        elementType: extractArrayElementType(genericParams[0], name, parser),
+      };
+    default:
+      throw new Error(
+        `Unrecognized ${type} for Array ${name} in events.\n${prettify(typeAnnotation)}`,
+      );
+  }
+}
+function prettify(jsonObject) {
+  return JSON.stringify(jsonObject, null, 2);
+}
+function extractTypeFromTypeAnnotation(typeAnnotation, parser) {
+  return typeAnnotation.type === 'GenericTypeAnnotation'
+    ? parser.getTypeAnnotationName(typeAnnotation)
+    : typeAnnotation.type;
+}
+function findEventArgumentsAndType(
+  parser,
+  typeAnnotation,
+  types,
+  bubblingType,
+  paperName,
+) {
+  throwIfEventHasNoName(typeAnnotation, parser);
+  const name = parser.getTypeAnnotationName(typeAnnotation);
+  if (name === '$ReadOnly') {
+    return {
+      argumentProps: typeAnnotation.typeParameters.params[0].properties,
+      paperTopLevelNameDeprecated: paperName,
+      bubblingType,
+    };
+  } else if (name === 'BubblingEventHandler' || name === 'DirectEventHandler') {
+    return handleEventHandler(
+      name,
+      typeAnnotation,
+      parser,
+      types,
+      findEventArgumentsAndType,
+    );
+  } else if (types[name]) {
+    return findEventArgumentsAndType(
+      parser,
+      types[name].right,
+      types,
+      bubblingType,
+      paperName,
+    );
+  } else {
+    return {
+      argumentProps: null,
+      bubblingType: null,
+      paperTopLevelNameDeprecated: null,
+    };
+  }
+}
+function buildEventSchema(types, property, parser) {
+  const name = property.key.name;
+  const optional =
+    property.optional || property.value.type === 'NullableTypeAnnotation';
+  let typeAnnotation =
+    property.value.type === 'NullableTypeAnnotation'
+      ? property.value.typeAnnotation
+      : property.value;
+  if (
+    typeAnnotation.type !== 'GenericTypeAnnotation' ||
+    (parser.getTypeAnnotationName(typeAnnotation) !== 'BubblingEventHandler' &&
+      parser.getTypeAnnotationName(typeAnnotation) !== 'DirectEventHandler')
+  ) {
+    return null;
+  }
+  const {argumentProps, bubblingType, paperTopLevelNameDeprecated} =
+    findEventArgumentsAndType(parser, typeAnnotation, types);
+  const nonNullableArgumentProps = throwIfArgumentPropsAreNull(
+    argumentProps,
+    name,
+  );
+  const nonNullableBubblingType = throwIfBubblingTypeIsNull(bubblingType, name);
+  const argument = getEventArgument(
+    nonNullableArgumentProps,
+    parser,
+    getPropertyType,
+  );
+  return emitBuildEventSchema(
+    paperTopLevelNameDeprecated,
+    name,
+    optional,
+    nonNullableBubblingType,
+    argument,
+  );
+}
+
+// $FlowFixMe[unclear-type] there's no flowtype for ASTs
+
+function getEvents(eventTypeAST, types, parser) {
+  return eventTypeAST
+    .filter(property => property.type === 'ObjectTypeProperty')
+    .map(property => buildEventSchema(types, property, parser))
+    .filter(Boolean);
+}
+module.exports = {
+  getEvents,
+  extractArrayElementType,
+};

node_modules/@react-native/codegen/lib/parsers/flow/components/events.js.flow

@@ -0,0 +1,288 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict
+ * @format
+ */
+
+'use strict';
+
+import type {
+  EventTypeAnnotation,
+  EventTypeShape,
+  NamedShape,
+} from '../../../CodegenSchema.js';
+import type {Parser} from '../../parser';
+import type {EventArgumentReturnType} from '../../parsers-commons';
+
+const {
+  throwIfArgumentPropsAreNull,
+  throwIfBubblingTypeIsNull,
+  throwIfEventHasNoName,
+} = require('../../error-utils');
+const {
+  buildPropertiesForEvent,
+  emitBuildEventSchema,
+  getEventArgument,
+  handleEventHandler,
+} = require('../../parsers-commons');
+const {
+  emitBoolProp,
+  emitDoubleProp,
+  emitFloatProp,
+  emitInt32Prop,
+  emitMixedProp,
+  emitObjectProp,
+  emitStringProp,
+  emitUnionProp,
+} = require('../../parsers-primitives');
+
+function getPropertyType(
+  /* $FlowFixMe[missing-local-annot] The type annotation(s) required by Flow's
+   * LTI update could not be added via codemod */
+  name: string,
+  optional: boolean,
+  typeAnnotation: $FlowFixMe,
+  parser: Parser,
+): NamedShape<EventTypeAnnotation> {
+  const type = extractTypeFromTypeAnnotation(typeAnnotation, parser);
+
+  switch (type) {
+    case 'BooleanTypeAnnotation':
+      return emitBoolProp(name, optional);
+    case 'StringTypeAnnotation':
+      return emitStringProp(name, optional);
+    case 'Int32':
+      return emitInt32Prop(name, optional);
+    case 'Double':
+      return emitDoubleProp(name, optional);
+    case 'Float':
+      return emitFloatProp(name, optional);
+    case '$ReadOnly':
+      return getPropertyType(
+        name,
+        optional,
+        typeAnnotation.typeParameters.params[0],
+        parser,
+      );
+    case 'ObjectTypeAnnotation':
+      return emitObjectProp(
+        name,
+        optional,
+        parser,
+        typeAnnotation,
+        extractArrayElementType,
+      );
+    case 'UnionTypeAnnotation':
+      return emitUnionProp(name, optional, parser, typeAnnotation);
+    case 'UnsafeMixed':
+      return emitMixedProp(name, optional);
+    case 'ArrayTypeAnnotation':
+    case '$ReadOnlyArray':
+      return {
+        name,
+        optional,
+        typeAnnotation: extractArrayElementType(typeAnnotation, name, parser),
+      };
+    default:
+      throw new Error(`Unable to determine event type for "${name}": ${type}`);
+  }
+}
+
+function extractArrayElementType(
+  typeAnnotation: $FlowFixMe,
+  name: string,
+  parser: Parser,
+): EventTypeAnnotation {
+  const type = extractTypeFromTypeAnnotation(typeAnnotation, parser);
+
+  switch (type) {
+    case 'BooleanTypeAnnotation':
+      return {type: 'BooleanTypeAnnotation'};
+    case 'StringTypeAnnotation':
+      return {type: 'StringTypeAnnotation'};
+    case 'Int32':
+      return {type: 'Int32TypeAnnotation'};
+    case 'Float':
+      return {type: 'FloatTypeAnnotation'};
+    case 'NumberTypeAnnotation':
+    case 'Double':
+      return {
+        type: 'DoubleTypeAnnotation',
+      };
+    case 'UnionTypeAnnotation':
+      return {
+        type: 'StringLiteralUnionTypeAnnotation',
+        types: typeAnnotation.types.map(option => ({
+          type: 'StringLiteralTypeAnnotation',
+          value: parser.getLiteralValue(option),
+        })),
+      };
+    case 'UnsafeMixed':
+      return {type: 'MixedTypeAnnotation'};
+    case 'ObjectTypeAnnotation':
+      return {
+        type: 'ObjectTypeAnnotation',
+        properties: parser
+          .getObjectProperties(typeAnnotation)
+          .map(member =>
+            buildPropertiesForEvent(member, parser, getPropertyType),
+          ),
+      };
+    case 'ArrayTypeAnnotation':
+      return {
+        type: 'ArrayTypeAnnotation',
+        elementType: extractArrayElementType(
+          typeAnnotation.elementType,
+          name,
+          parser,
+        ),
+      };
+    case '$ReadOnlyArray':
+      const genericParams = typeAnnotation.typeParameters.params;
+      if (genericParams.length !== 1) {
+        throw new Error(
+          `Events only supports arrays with 1 Generic type. Found ${
+            genericParams.length
+          } types:\n${prettify(genericParams)}`,
+        );
+      }
+      return {
+        type: 'ArrayTypeAnnotation',
+        elementType: extractArrayElementType(genericParams[0], name, parser),
+      };
+    default:
+      throw new Error(
+        `Unrecognized ${type} for Array ${name} in events.\n${prettify(
+          typeAnnotation,
+        )}`,
+      );
+  }
+}
+
+function prettify(jsonObject: $FlowFixMe): string {
+  return JSON.stringify(jsonObject, null, 2);
+}
+
+function extractTypeFromTypeAnnotation(
+  typeAnnotation: $FlowFixMe,
+  parser: Parser,
+): string {
+  return typeAnnotation.type === 'GenericTypeAnnotation'
+    ? parser.getTypeAnnotationName(typeAnnotation)
+    : typeAnnotation.type;
+}
+
+function findEventArgumentsAndType(
+  parser: Parser,
+  typeAnnotation: $FlowFixMe,
+  types: TypeMap,
+  bubblingType: void | 'direct' | 'bubble',
+  paperName: ?$FlowFixMe,
+): EventArgumentReturnType {
+  throwIfEventHasNoName(typeAnnotation, parser);
+  const name = parser.getTypeAnnotationName(typeAnnotation);
+  if (name === '$ReadOnly') {
+    return {
+      argumentProps: typeAnnotation.typeParameters.params[0].properties,
+      paperTopLevelNameDeprecated: paperName,
+      bubblingType,
+    };
+  } else if (name === 'BubblingEventHandler' || name === 'DirectEventHandler') {
+    return handleEventHandler(
+      name,
+      typeAnnotation,
+      parser,
+      types,
+      findEventArgumentsAndType,
+    );
+  } else if (types[name]) {
+    return findEventArgumentsAndType(
+      parser,
+      types[name].right,
+      types,
+      bubblingType,
+      paperName,
+    );
+  } else {
+    return {
+      argumentProps: null,
+      bubblingType: null,
+      paperTopLevelNameDeprecated: null,
+    };
+  }
+}
+
+function buildEventSchema(
+  types: TypeMap,
+  property: EventTypeAST,
+  parser: Parser,
+): ?EventTypeShape {
+  const name = property.key.name;
+  const optional =
+    property.optional || property.value.type === 'NullableTypeAnnotation';
+
+  let typeAnnotation =
+    property.value.type === 'NullableTypeAnnotation'
+      ? property.value.typeAnnotation
+      : property.value;
+
+  if (
+    typeAnnotation.type !== 'GenericTypeAnnotation' ||
+    (parser.getTypeAnnotationName(typeAnnotation) !== 'BubblingEventHandler' &&
+      parser.getTypeAnnotationName(typeAnnotation) !== 'DirectEventHandler')
+  ) {
+    return null;
+  }
+
+  const {argumentProps, bubblingType, paperTopLevelNameDeprecated} =
+    findEventArgumentsAndType(parser, typeAnnotation, types);
+
+  const nonNullableArgumentProps = throwIfArgumentPropsAreNull(
+    argumentProps,
+    name,
+  );
+  const nonNullableBubblingType = throwIfBubblingTypeIsNull(bubblingType, name);
+
+  const argument = getEventArgument(
+    nonNullableArgumentProps,
+    parser,
+    getPropertyType,
+  );
+
+  return emitBuildEventSchema(
+    paperTopLevelNameDeprecated,
+    name,
+    optional,
+    nonNullableBubblingType,
+    argument,
+  );
+}
+
+// $FlowFixMe[unclear-type] there's no flowtype for ASTs
+type EventTypeAST = Object;
+
+type TypeMap = {
+  // $FlowFixMe[unclear-type] there's no flowtype for ASTs
+  [string]: Object,
+  ...
+};
+
+function getEvents(
+  eventTypeAST: $ReadOnlyArray<EventTypeAST>,
+  types: TypeMap,
+  parser: Parser,
+): $ReadOnlyArray<EventTypeShape> {
+  return eventTypeAST
+    .filter(property => property.type === 'ObjectTypeProperty')
+    .map(property => buildEventSchema(types, property, parser))
+    .filter(Boolean);
+}
+
+module.exports = {
+  getEvents,
+  extractArrayElementType,
+};

node_modules/@react-native/codegen/lib/parsers/flow/components/index.js

@@ -0,0 +1,46 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ *
+ * @format
+ */
+
+'use strict';
+
+const {
+  findComponentConfig,
+  getCommandProperties,
+  getOptions,
+} = require('../../parsers-commons');
+const {getCommands} = require('./commands');
+const {getEvents} = require('./events');
+
+// $FlowFixMe[signature-verification-failure] there's no flowtype for AST
+function buildComponentSchema(ast, parser) {
+  const {componentName, propsTypeName, optionsExpression} = findComponentConfig(
+    ast,
+    parser,
+  );
+  const types = parser.getTypes(ast);
+  const propProperties = parser.getProperties(propsTypeName, types);
+  const commandProperties = getCommandProperties(ast, parser);
+  const {extendsProps, props} = parser.getProps(propProperties, types);
+  const options = getOptions(optionsExpression);
+  const events = getEvents(propProperties, types, parser);
+  const commands = getCommands(commandProperties, types, parser);
+  return {
+    filename: componentName,
+    componentName,
+    options,
+    extendsProps,
+    events,
+    props,
+    commands,
+  };
+}
+module.exports = {
+  buildComponentSchema,
+};

node_modules/@react-native/codegen/lib/parsers/flow/components/index.js.flow

@@ -0,0 +1,56 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict
+ * @format
+ */
+
+'use strict';
+import type {Parser} from '../../parser';
+import type {ComponentSchemaBuilderConfig} from '../../schema.js';
+
+const {
+  findComponentConfig,
+  getCommandProperties,
+  getOptions,
+} = require('../../parsers-commons');
+const {getCommands} = require('./commands');
+const {getEvents} = require('./events');
+
+// $FlowFixMe[signature-verification-failure] there's no flowtype for AST
+function buildComponentSchema(
+  ast: $FlowFixMe,
+  parser: Parser,
+): ComponentSchemaBuilderConfig {
+  const {componentName, propsTypeName, optionsExpression} = findComponentConfig(
+    ast,
+    parser,
+  );
+
+  const types = parser.getTypes(ast);
+
+  const propProperties = parser.getProperties(propsTypeName, types);
+  const commandProperties = getCommandProperties(ast, parser);
+  const {extendsProps, props} = parser.getProps(propProperties, types);
+
+  const options = getOptions(optionsExpression);
+  const events = getEvents(propProperties, types, parser);
+  const commands = getCommands(commandProperties, types, parser);
+
+  return {
+    filename: componentName,
+    componentName,
+    options,
+    extendsProps,
+    events,
+    props,
+    commands,
+  };
+}
+
+module.exports = {
+  buildComponentSchema,
+};