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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@react-native/codegen/lib/generators/modules
Просмотр файла: GenerateModuleCpp.js.flow
/**
* 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 {
NamedShape,
NativeModuleEnumMap,
NativeModuleFunctionTypeAnnotation,
NativeModuleParamTypeAnnotation,
NativeModulePropertyShape,
NativeModuleTypeAnnotation,
Nullable,
SchemaType,
} from '../../CodegenSchema';
import type {AliasResolver} from './Utils';
const {unwrapNullable} = require('../../parsers/parsers-commons');
const {createAliasResolver, getModules} = require('./Utils');
type FilesOutput = Map<string, string>;
const HostFunctionTemplate = ({
hasteModuleName,
methodName,
returnTypeAnnotation,
args,
}: $ReadOnly<{
hasteModuleName: string,
methodName: string,
returnTypeAnnotation: Nullable<NativeModuleTypeAnnotation>,
args: Array<string>,
}>) => {
const isNullable = returnTypeAnnotation.type === 'NullableTypeAnnotation';
const isVoid = returnTypeAnnotation.type === 'VoidTypeAnnotation';
const methodCallArgs = [' rt', ...args].join(',\n ');
const methodCall = `static_cast<${hasteModuleName}CxxSpecJSI *>(&turboModule)->${methodName}(\n${methodCallArgs}\n )`;
return `static jsi::Value __hostFunction_${hasteModuleName}CxxSpecJSI_${methodName}(jsi::Runtime &rt, TurboModule &turboModule, const jsi::Value* args, size_t count) {${
isVoid
? `\n ${methodCall};`
: isNullable
? `\n auto result = ${methodCall};`
: ''
}
return ${
isVoid
? 'jsi::Value::undefined()'
: isNullable
? 'result ? jsi::Value(std::move(*result)) : jsi::Value::null()'
: methodCall
};
}`;
};
const ModuleTemplate = ({
hasteModuleName,
hostFunctions,
moduleName,
methods,
}: $ReadOnly<{
hasteModuleName: string,
hostFunctions: $ReadOnlyArray<string>,
moduleName: string,
methods: $ReadOnlyArray<$ReadOnly<{methodName: string, paramCount: number}>>,
}>) => {
return `${hostFunctions.join('\n')}
${hasteModuleName}CxxSpecJSI::${hasteModuleName}CxxSpecJSI(std::shared_ptr<CallInvoker> jsInvoker)
: TurboModule("${moduleName}", jsInvoker) {
${methods
.map(({methodName, paramCount}) => {
return ` methodMap_["${methodName}"] = MethodMetadata {${paramCount}, __hostFunction_${hasteModuleName}CxxSpecJSI_${methodName}};`;
})
.join('\n')}
}`;
};
const FileTemplate = ({
libraryName,
modules,
}: $ReadOnly<{
libraryName: string,
modules: string,
}>) => {
return `/**
* This code was generated by [react-native-codegen](https://www.npmjs.com/package/react-native-codegen).
*
* Do not edit this file as changes may cause incorrect behavior and will be lost
* once the code is regenerated.
*
* ${'@'}generated by codegen project: GenerateModuleCpp.js
*/
#include "${libraryName}JSI.h"
namespace facebook::react {
${modules}
} // namespace facebook::react
`;
};
type Param = NamedShape<Nullable<NativeModuleParamTypeAnnotation>>;
function serializeArg(
moduleName: string,
arg: Param,
index: number,
resolveAlias: AliasResolver,
enumMap: NativeModuleEnumMap,
): string {
const {typeAnnotation: nullableTypeAnnotation, optional} = arg;
const [typeAnnotation, nullable] =
unwrapNullable<NativeModuleParamTypeAnnotation>(nullableTypeAnnotation);
let realTypeAnnotation = typeAnnotation;
if (realTypeAnnotation.type === 'TypeAliasTypeAnnotation') {
realTypeAnnotation = resolveAlias(realTypeAnnotation.name);
}
function wrap(callback: (val: string) => string) {
const val = `args[${index}]`;
const expression = callback(val);
// param?: T
if (optional && !nullable) {
// throw new Error('are we hitting this case? ' + moduleName);
return `count <= ${index} || ${val}.isUndefined() ? std::nullopt : std::make_optional(${expression})`;
}
// param: ?T
// param?: ?T
if (nullable || optional) {
return `count <= ${index} || ${val}.isNull() || ${val}.isUndefined() ? std::nullopt : std::make_optional(${expression})`;
}
// param: T
return `count <= ${index} ? throw jsi::JSError(rt, "Expected argument in position ${index} to be passed") : ${expression}`;
}
switch (realTypeAnnotation.type) {
case 'ReservedTypeAnnotation':
switch (realTypeAnnotation.name) {
case 'RootTag':
return wrap(val => `${val}.asNumber()`);
default:
(realTypeAnnotation.name: empty);
throw new Error(
`Unknown prop type for "${arg.name}, found: ${realTypeAnnotation.name}"`,
);
}
case 'StringTypeAnnotation':
return wrap(val => `${val}.asString(rt)`);
case 'StringLiteralTypeAnnotation':
return wrap(val => `${val}.asString(rt)`);
case 'StringLiteralUnionTypeAnnotation':
return wrap(val => `${val}.asString(rt)`);
case 'BooleanTypeAnnotation':
return wrap(val => `${val}.asBool()`);
case 'EnumDeclaration':
switch (realTypeAnnotation.memberType) {
case 'NumberTypeAnnotation':
return wrap(val => `${val}.asNumber()`);
case 'StringTypeAnnotation':
return wrap(val => `${val}.asString(rt)`);
default:
throw new Error(
`Unknown enum type for "${arg.name}, found: ${realTypeAnnotation.type}"`,
);
}
case 'NumberTypeAnnotation':
return wrap(val => `${val}.asNumber()`);
case 'FloatTypeAnnotation':
return wrap(val => `${val}.asNumber()`);
case 'DoubleTypeAnnotation':
return wrap(val => `${val}.asNumber()`);
case 'Int32TypeAnnotation':
return wrap(val => `${val}.asNumber()`);
case 'NumberLiteralTypeAnnotation':
return wrap(val => `${val}.asNumber()`);
case 'ArrayTypeAnnotation':
return wrap(val => `${val}.asObject(rt).asArray(rt)`);
case 'FunctionTypeAnnotation':
return wrap(val => `${val}.asObject(rt).asFunction(rt)`);
case 'GenericObjectTypeAnnotation':
return wrap(val => `${val}.asObject(rt)`);
case 'UnionTypeAnnotation':
switch (typeAnnotation.memberType) {
case 'NumberTypeAnnotation':
return wrap(val => `${val}.asNumber()`);
case 'ObjectTypeAnnotation':
return wrap(val => `${val}.asObject(rt)`);
case 'StringTypeAnnotation':
return wrap(val => `${val}.asString(rt)`);
default:
throw new Error(
`Unsupported union member type for param "${arg.name}, found: ${realTypeAnnotation.memberType}"`,
);
}
case 'ObjectTypeAnnotation':
return wrap(val => `${val}.asObject(rt)`);
case 'MixedTypeAnnotation':
return wrap(val => `jsi::Value(rt, ${val})`);
default:
(realTypeAnnotation.type: empty);
throw new Error(
`Unknown prop type for "${arg.name}, found: ${realTypeAnnotation.type}"`,
);
}
}
function serializePropertyIntoHostFunction(
moduleName: string,
hasteModuleName: string,
property: NativeModulePropertyShape,
resolveAlias: AliasResolver,
enumMap: NativeModuleEnumMap,
): string {
const [propertyTypeAnnotation] =
unwrapNullable<NativeModuleFunctionTypeAnnotation>(property.typeAnnotation);
return HostFunctionTemplate({
hasteModuleName,
methodName: property.name,
returnTypeAnnotation: propertyTypeAnnotation.returnTypeAnnotation,
args: propertyTypeAnnotation.params.map((p, i) =>
serializeArg(moduleName, p, i, resolveAlias, enumMap),
),
});
}
module.exports = {
generate(
libraryName: string,
schema: SchemaType,
packageName?: string,
assumeNonnull: boolean = false,
headerPrefix?: string,
): FilesOutput {
const nativeModules = getModules(schema);
const modules = Object.keys(nativeModules)
.map((hasteModuleName: string) => {
const nativeModule = nativeModules[hasteModuleName];
const {
aliasMap,
enumMap,
spec: {methods},
moduleName,
} = nativeModule;
const resolveAlias = createAliasResolver(aliasMap);
const hostFunctions = methods.map(property =>
serializePropertyIntoHostFunction(
moduleName,
hasteModuleName,
property,
resolveAlias,
enumMap,
),
);
return ModuleTemplate({
hasteModuleName,
hostFunctions,
moduleName,
methods: methods.map(
({name: propertyName, typeAnnotation: nullableTypeAnnotation}) => {
const [{params}] = unwrapNullable(nullableTypeAnnotation);
return {
methodName: propertyName,
paramCount: params.length,
};
},
),
});
})
.join('\n');
const fileName = `${libraryName}JSI-generated.cpp`;
const replacedTemplate = FileTemplate({
modules,
libraryName,
});
return new Map([[fileName, replacedTemplate]]);
},
};
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