Hooray!! Congratulations. 'Puts' Commit.

Author: manash

index.ts

@@ -14,6 +14,7 @@
 import {HeadFn} from "./exprs/basicFunctions/head";
 import {Length} from "./exprs/basicFunctions/len";
 import {PushFn} from "./exprs/basicFunctions/push";
+import {Puts} from "./exprs/basicFunctions/puts";
 import {TailFn} from "./exprs/basicFunctions/tail";
 import {FuncLiteral} from "./exprs/functionLiteral";
 
@@ -88,6 +89,7 @@ class ExecutionContext {
         this.basic.set("push", PushFn.create());
         this.basic.set("head", HeadFn.create());
         this.basic.set("tail", TailFn.create());
+        this.basic.set('puts', Puts.create());
     }
     isBuiltin(str: string): boolean {
         return this.basic.has(str);

parser/context.ts

@@ -0,0 +1,16 @@
+import {FuncLiteral} from "../functionLiteral";
+
+export class Puts extends FuncLiteral {
+    execute(evalArgs: any[]) {
+        for(const v of evalArgs) {
+            console.log(v);
+        }
+        return null;
+    }
+    private constructor() {
+        super();
+    }
+    static create() {
+        return new Puts();
+    }
+}

parser/exprs/basicFunctions/puts.ts

@@ -30,11 +30,11 @@ function executor(uinput: string) {
     try {
         return Parser.create(uinput).parse().eval();
     } catch (err: any) {
-        return "Heya! You might have some parsing errors".concat(' ==> ', err.message);
+        return err.message;
     }
 }
 
-const evalFun = lexing;
+const evalFun = executor;
 
 function evaluator(uinput: string, context, filename, callback) {
     callback(null, evalFun(uinput));

repl.ts

@@ -179,13 +179,13 @@ describe("Evaluation Queries", () => {
     });
 
     describe('7. Objects', () => {
-        test('1. Evaluation', () => {
+        test('a. Evaluation', () => {
             const inp = `let name = 'hi'; let obj = { name : 'Yo' }; obj['hi'];`
             const exp = 'Yo';
             testInput(inp, exp);
         });
-        test('2. Complex Evaluation', () => {
-            const inp =  `let two = "two";
+        test('b. Complex Evaluation', () => {
+            const inp = `let two = "two";
                 let o = {
                     "one": 10 - 9,
                     two: 1 + 1,
@@ -199,6 +199,22 @@ describe("Evaluation Queries", () => {
             const exp = [1, 2, 3, 4, 5, 6];
             testInput(inp, exp);
         });
+
+        test('c. Array inside of Objects', () => {
+            const inp = `let people = [{"name": "Alice", "age": 24}, {"name": "Anna", "age": 28}];
+            return people[1]['age'];`;
+            const exp = 28;
+            testInput(inp, exp);
+        })
+    });
+
+    describe('8. Puts', () => {
+        test('a. Print', () => {
+
+            const inp = `puts('Hello')`;
+            const exp = null;
+            testInput(inp, exp);
+        });
     });
 });