feat: support constructor

Author: hui19

lib/java/DNJavaContext.js

@@ -90,7 +90,7 @@ export class DNMethodContext extends DNContext {
 
             if(basic_type_wrapper.includes(types[i])) {
                 if(types[i] == 'char') {
-                    wrapperArgs += 'char(' + argNames[i] + '.codeUnitAt(0))'
+                    wrapperArgs += 'jchar(' + argNames[i] + '.codeUnitAt(0))'
                     continue
                 }
 
@@ -136,19 +136,60 @@ export class DNClassContext extends DNContext {
         this.name = internalChildren.children[2].start.text
         this.superClass = []
         this.methods = []
+        this.args = []
     }
 
     parse() {
         var result = 'class ' + this.name + ' extends JObject'
         result += ' {\n'
-        result += '  ' + this.name + '() : super(\"' + packageName + this.name + '\");\n'
+        result += this.name + '([Pointer? ptr]) : super(\"' + packageName + this.name + '\", ' +  'pointer: ptr' + ');\n'
+        if (this.args.length != 0) {
+            result += this.name + '(' + this.methodArgs() + ') : super(\"' + packageName + this.name + '\", [' + this.basicTypeWrapper() + ']);\n'
+        }
         this.methods.forEach(element => {
             var parseRet = element.parse()
             result += parseRet ? parseRet + '\n' : ''
         })
         result += '\n}'
         return result
     }
+
+    methodArgs() {
+        var argList = ''
+        this.args.forEach((element, index) => {
+            var argType = basic_type_conversion(element.type)
+            if(index == this.args.length - 1){
+                argList += argType + ' ' + element.name
+            }else{
+                argList += argType + ' ' + element.name + ', '
+            }
+        })
+        return argList
+    }
+
+    basicTypeWrapper() {
+        var types = this.args.map(arg => arg.type)
+        var argNames = this.args.map(arg => arg.name)
+        var wrapperArgs = ''
+        for(var i = 0; i < argNames.length; i++) {
+            if(i != 0) {
+                wrapperArgs += ','
+            }
+
+            if(basic_type_wrapper.includes(types[i])) {
+                if(types[i] == 'char') {
+                    wrapperArgs += 'jchar(' + argNames[i] + '.codeUnitAt(0))'
+                    continue
+                }
+
+                wrapperArgs += types[i] + '(' + argNames[i] + ')'
+                continue
+            }
+            
+            wrapperArgs += argNames[i]
+        }
+        return wrapperArgs
+    }
 }
 
 export class DNImportContext extends DNContext {
@@ -208,6 +249,7 @@ export class DNRootContext extends DNContext {
     parse() {
         var result = ""
         var packageSet = new Set()
+        result += '// Generated by @dartnative/codegen:\n// https://www.npmjs.com/package/@dartnative/codegen\n\n'
         result += "import 'package:dart_native/dart_native.dart';\n"
         result += "import 'package:dart_native_gen/dart_native_gen.dart';\n"
         result += this.children.map(ctx => ctx.parse()).join('\n\n')

lib/java/DNJavaParserListener.js

@@ -775,6 +775,13 @@ export default class DNJavaParserListener extends Java9Listener {
             argument.name = ctx.children[1].start.text
             this.currentContext.addChild(argument)
             this.currentContext = argument
+        } else if (this.currentContext instanceof DNClassContext) {
+            // Add method names.
+            var argument = new DNArgumentContext(ctx)
+            argument.type = ctx.children[0].start.text
+            argument.name = ctx.children[1].start.text
+            this.currentContext.addChild(argument)
+            this.currentContext = argument
         }
     };
 
@@ -784,6 +791,10 @@ export default class DNJavaParserListener extends Java9Listener {
             var argument = this.currentContext
             this.currentContext = this.currentContext.parent
             this.currentContext.args.push(argument)
+        } else if (this.currentContext instanceof DNClassContext) {
+            var argument = this.currentContext
+            this.currentContext = this.currentContext.parent
+            this.currentContext.args.push(argument)
         }
     };