feat: add native swift option (#55)

This PR adds the option to create a native module with swift for iOS.
Closes #54

Author: SimonErm

src/create.ts

@@ -17,6 +17,7 @@ const NATIVE_FILES = path.resolve(__dirname, '../templates/native-library');
 const EXPO_FILES = path.resolve(__dirname, '../templates/expo-library');
 const CPP_FILES = path.resolve(__dirname, '../templates/cpp-library');
 const OBJC_FILES = path.resolve(__dirname, '../templates/objc-library');
+const SWIFT_FILES = path.resolve(__dirname, '../templates/swift-library');
 
 type ArgName =
   | 'slug'
@@ -34,7 +35,7 @@ type Answers = {
   authorEmail: string;
   authorUrl: string;
   repoUrl: string;
-  type: 'native' | 'cpp' | 'expo';
+  type: 'native' | 'native-swift' | 'cpp' | 'expo';
 };
 
 export const args: Record<ArgName, yargs.Options> = {
@@ -64,7 +65,7 @@ export const args: Record<ArgName, yargs.Options> = {
   },
   'type': {
     description: 'Type package do you want to develop',
-    choices: ['native', 'cpp', 'expo'],
+    choices: ['native', 'native-swift', 'cpp', 'expo'],
   },
 };
 
@@ -166,6 +167,7 @@ export default async function create(argv: yargs.Arguments<any>) {
       // @ts-ignore - seems types are wrong for inquirer
       choices: [
         { name: 'Native module in Kotlin and Objective-C', value: 'native' },
+        { name: 'Native module in Kotlin and Swift', value: 'native-swift' },
         { name: 'Native module with C++ code', value: 'cpp' },
         {
           name: 'JavaScript module with Web support using Expo',
@@ -218,8 +220,9 @@ export default async function create(argv: yargs.Arguments<any>) {
         .slice(1)}`,
       package: slug.replace(/[^a-z0-9]/g, '').toLowerCase(),
       podspec: slug.replace(/[^a-z0-9]+/g, '-').replace(/^-/, ''),
-      native: type === 'native' || type === 'cpp',
+      native: type === 'native' || type === 'cpp' || 'native-swift',
       cpp: type === 'cpp',
+      swift: type === 'native-swift',
     },
     author: {
       name: authorName,
@@ -261,6 +264,8 @@ export default async function create(argv: yargs.Arguments<any>) {
 
     if (type === 'cpp') {
       await copyDir(CPP_FILES, folder);
+    } else if (type === 'native-swift') {
+      await copyDir(SWIFT_FILES, folder);
     } else {
       await copyDir(OBJC_FILES, folder);
     }

templates/native-library/<%= project.podspec %>.podspec

@@ -15,7 +15,9 @@ Pod::Spec.new do |s|
 
   <% if(project.cpp){ %>
   s.source_files = "ios/**/*.{h,m,mm}", "cpp/**/*.{h,cpp}"
-  <% } else{ %>
+  <% } else if(project.swift){ %>
+  s.source_files = "ios/**/*.{h,m,mm,swift}"
+  <% } else {%>
   s.source_files = "ios/**/*.{h,m,mm}"
   <% } %>
 

templates/native-library/ios/<%= project.name %>.xcodeproj/project.pbxproj

@@ -9,6 +9,9 @@
 /* Begin PBXBuildFile section */
 <% if (project.cpp) {%>
 		5E46D8CD2428F78900513E24 /* example.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 5E46D8CB2428F78900513E24 /* example.cpp */; };
+<% } %>
+<% if (project.swift) {%>
+		F4FF95D7245B92E800C19C63 /*  <%= project.name %>.swift in Sources */ = {isa = PBXBuildFile; fileRef = F4FF95D6245B92E800C19C63 /*  <%= project.name %>.swift */; };
 <% } %>
 		5E555C0D2413F4C50049A1A2 /* <%= project.name %>.mm in Sources */ = {isa = PBXBuildFile; fileRef = B3E7B5891CC2AC0600A0062D /* <%= project.name %>.mm */; };
 /* End PBXBuildFile section */
@@ -31,8 +34,14 @@
 		5E46D8CB2428F78900513E24 /* example.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = example.cpp; path = ../cpp/example.cpp; sourceTree = "<group>"; };
 		5E46D8CC2428F78900513E24 /* example.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = example.h; path = ../cpp/example.h; sourceTree = "<group>"; };
 <% } %>
+<% if (project.swift) {%>
+		B3E7B5891CC2AC0600A0062D /* <%= project.name %>.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = <%= project.name %>.m; sourceTree = "<group>"; };
+		F4FF95D5245B92E700C19C63 /* <%= project.name %>-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "<%= project.name %>-Bridging-Header.h"; sourceTree = "<group>"; };
+		F4FF95D6245B92E800C19C63 /* <%= project.name %>.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = <%= project.name %>.swift; sourceTree = "<group>"; };
+<% } else { %>
 		B3E7B5881CC2AC0600A0062D /* <%= project.name %>.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = <%= project.name %>.h; sourceTree = "<group>"; };
 		B3E7B5891CC2AC0600A0062D /* <%= project.name %>.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = <%= project.name %>.mm; sourceTree = "<group>"; };
+<% } %>
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -61,8 +70,14 @@
 				5E46D8CB2428F78900513E24 /* example.cpp */,
 				5E46D8CC2428F78900513E24 /* example.h */,
 <% } %>
+<% if (project.swift) {%>
+				F4FF95D6245B92E800C19C63 /* <%= project.name %>.swift */,
+				B3E7B5891CC2AC0600A0062D /* <%= project.name %>.m */,
+				F4FF95D5245B92E700C19C63 /* <%= project.name %>-Bridging-Header.h */,
+<% } else {%>
 				B3E7B5881CC2AC0600A0062D /* <%= project.name %>.h */,
 				B3E7B5891CC2AC0600A0062D /* <%= project.name %>.mm */,
+<% } %>
 				134814211AA4EA7D00B7C361 /* Products */,
 			);
 			sourceTree = "<group>";
@@ -127,7 +142,12 @@
 <% if (project.cpp) {%>
 				5E46D8CD2428F78900513E24 /* example.cpp in Sources */,
 <% } %>
+<% if (project.swift) {%>
+				F4FF95D7245B92E800C19C63 /* <%= project.name %>.swift in Sources */,
+				B3E7B58A1CC2AC0600A0062D /* <%= project.name %>.m in Sources */,
+<% } else { %>
 				5E555C0D2413F4C50049A1A2 /* <%= project.name %>.mm in Sources */,
+<% } %>
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -240,6 +260,11 @@
 				OTHER_LDFLAGS = "-ObjC";
 				PRODUCT_NAME = <%= project.name %>;
 				SKIP_INSTALL = YES;
+<% if (project.swift) {%>
+				SWIFT_OBJC_BRIDGING_HEADER = "<%= project.name %>-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+<% } %>
 			};
 			name = Debug;
 		};
@@ -256,6 +281,10 @@
 				OTHER_LDFLAGS = "-ObjC";
 				PRODUCT_NAME = <%= project.name %>;
 				SKIP_INSTALL = YES;
+<% if (project.swift) {%>
+				SWIFT_OBJC_BRIDGING_HEADER = "<%= project.name %>-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
+<% } %>
 			};
 			name = Release;
 		};

templates/swift-library/ios/<%= project.name %> .swift

@@ -0,0 +1,8 @@
+@objc(<%= project.name %>)
+class <%= project.name %>: NSObject {
+    
+    @objc(multiply:withB:withResolver:withRejecter:)
+    func multiply(a: Float, b: Float, resolve:RCTPromiseResolveBlock,reject:RCTPromiseRejectBlock) -> Void {
+        resolve(a*b)
+    }
+}

templates/swift-library/ios/<%= project.name %>-Bridging-Header.h

@@ -0,0 +1 @@
+#import <React/RCTBridgeModule.h>

templates/swift-library/ios/<%= project.name %>.m

@@ -0,0 +1,9 @@
+#import <React/RCTBridgeModule.h>
+
+@interface RCT_EXTERN_MODULE(<%= project.name %>, NSObject)
+
+RCT_EXTERN_METHOD(multiply:(float)a withB:(float)b
+                 withResolver:(RCTPromiseResolveBlock)resolve
+                 withRejecter:(RCTPromiseRejectBlock)reject)
+
+@end