Model builtin

builtin/model.dara

@@ -0,0 +1,19 @@
+init(data: map[string]any){}
+
+/**
+ * Validate model
+ * @return void
+ */
+function validate() throws: void;
+
+/**
+ * Model transforms to map[string]any
+ * @return map[string]any
+ */
+function toMap(): map[string]any;
+
+/**
+ * deep copy the Model without stream type
+ * @return $type
+ */
+function copyWithouStream(): $type;

lib/builtin.js

@@ -173,6 +173,8 @@ builtin.set('$Env', _module('env'));
 // TODO
 //builtin.set('Crypto', _module('crypto'));
 
+builtin.set('$ModelInstance', _module('model'));
+
 builtin.set('$Stream', _module('stream'));
 
 builtin.set('$Date', _module('date'));

lib/semantic.js

@@ -2237,9 +2237,13 @@ class TypeChecker {
  } else if(type.type === 'basic' && isBasicType(type.name)) {
  moduleName = this.getBuiltinModule(type.name);
  ast.builtinModule = moduleName;
- } 
+ } else if(type.type === 'model') {
+ moduleName = '$ModelInstance';
+ ast.builtinModule = moduleName;
+ }
+
  }
-
+ 
  const checker = this.getChecker(moduleName);
  const method = ast.left.propertyPath[0];
  const name = method.lexeme;
@@ -2686,7 +2690,7 @@ class TypeChecker {
  getInstanceType(id, env) {
  const type = this.getVariableType(id, env);
 
- if(!isBasicType(type.type)) {
+ if(!isBasicType(type.type) && type.type !== 'model') {
  this.error('$type can only be used as basic type instacne call.', type);
  }
  if(type.type === 'array') {
@@ -2700,6 +2704,7 @@ class TypeChecker {
  if(type.type === 'entry') {
  return type.valueType;
  }
+
  return type;
  }
 

test/fixtures/builtin_module/model.dara

@@ -0,0 +1,26 @@
+model M {
+ name: string,
+ age: number,
+}
+
+static async function main(args: [string]): void { 
+ var m = new M{
+ name = 'test',
+ age = 123
+ };
+ m.validate();
+ var mmap = m.toMap();
+ var name = $string(mmap['name']);
+ if(name == 'test') {
+ $Logger.info(name);
+ }
+
+
+ var m2: M = m.copyWithouStream();
+ var mmap2 = m2.toMap();
+ var name2 = $string(mmap2['name']);
+
+ if(name2 == 'test') {
+ $Logger.info('copyWithouStream' + name2);
+ }
+}

test/semantic.test.js

@@ -7222,6 +7222,12 @@ describe('semantic', function () {
  }).to.not.throwException();
  });
 
+ it('use model builtin module shoule be ok', function(){
+ expect(function () {
+ readAndParse('fixtures/builtin_module/model.dara');
+ }).to.not.throwException();
+ });
+
  it('use builtin functions shoule be ok', function(){
  expect(function () {
  readAndParse('fixtures/builtin_function/function.dara');