nitro-codegen/lib/syntax/types/StructType.js

The code-generator for react-native-nitro-modules.

import { NitroConfig } from '../../config/NitroConfig.js';
import { createCppStruct } from '../c++/CppStruct.js';
import { getForwardDeclaration } from '../c++/getForwardDeclaration.js';
import {} from '../SourceFile.js';
export class StructType {
    structName;
    properties;
    declarationFile;
    constructor(structName, properties) {
        this.structName = structName;
        this.properties = properties;
        this.declarationFile = createCppStruct(structName, properties);
        if (this.structName.startsWith('__')) {
            throw new Error(`Struct name cannot start with two underscores (__) as this is reserved syntax for Nitrogen! (In ${this.structName})`);
        }
        if (this.properties.length === 0) {
            throw new Error(`Empty structs are not supported in Nitrogen! Add at least one property to ${this.structName}.`);
        }
    }
    get canBePassedByReference() {
        // It's a struct, heavy to copy.
        return true;
    }
    get kind() {
        return 'struct';
    }
    getCode(language) {
        switch (language) {
            case 'c++':
                return this.structName;
            case 'swift':
                return this.structName;
            case 'kotlin':
                return this.structName;
            default:
                throw new Error(`Language ${language} is not yet supported for StructType!`);
        }
    }
    getExtraFiles() {
        const referencedTypes = this.declarationFile.referencedTypes.flatMap((r) => r.getExtraFiles());
        return [this.declarationFile, ...referencedTypes];
    }
    getRequiredImports() {
        const cxxNamespace = NitroConfig.getCxxNamespace('c++');
        return [
            {
                name: this.declarationFile.name,
                language: this.declarationFile.language,
                forwardDeclaration: getForwardDeclaration('struct', this.structName, cxxNamespace),
                space: 'user',
            },
        ];
    }
}