fixes to support JSLib

Author: Alex D

experiments/jslib/Array.ts

@@ -329,15 +329,15 @@ module JS {
             return retArr;
         }
 
-        public slice(begin?: number, end?: number): T[] {
+        public slice(begin?: number, _end?: number): T[] {
             const retArr = new Array<T>();
 
             const from = begin || 0;
             if (from < 0) {
                 throw new Error(`Index out of bounds: ${from}`);
             }
 
-            let to = end || this.length;
+            let to = _end || this.length;
             if (to > this.length) {
                 to = this.length;
             }

experiments/jslib/String.ts

@@ -65,16 +65,16 @@ module JS {
             return string.sub(this, (begin || 0) + 1, (begin || 0) + (len || string.len(this)));
         }
 
-        public static substring(this: string, begin?: number, end?: number): string {
-            if (begin == end && end == null || begin === end) {
+        public static substring(this: string, begin?: number, _end?: number): string {
+            if (begin == _end && _end == null || begin === _end) {
                 return '';
             }
 
-            return string.sub(this, (begin || 0) + 1, end != undefined ? end : null);
+            return string.sub(this, (begin || 0) + 1, _end != undefined ? _end : null);
         }
 
-        public static slice(this: string, start?: number, end?: number): string {
-            return string.sub(this, (start || 0) + 1, end != undefined ? end : null);
+        public static slice(this: string, start?: number, _end?: number): string {
+            return string.sub(this, (start || 0) + 1, _end != undefined ? _end : null);
         }
 
         public static indexOf(this: string, pattern: string, begin?: number): number {
@@ -175,9 +175,9 @@ module JS {
             return new String(this.constString.substr(begin, len));
         }
 
-        public substring(begin?: number, end?: number): String {
+        public substring(begin?: number, _end?: number): String {
             // tslint:disable-next-line:no-construct
-            return new String(this.constString.substring(begin, end));
+            return new String(this.constString.substring(begin, _end));
         }
 
         public indexOf(pattern: string, begin?: number): number {
@@ -188,9 +188,9 @@ module JS {
             return this.constString.split(separator);
         }
 
-        public slice(start?: number, end?: number): String {
+        public slice(start?: number, _end?: number): String {
             // tslint:disable-next-line:no-construct
-            return new String(this.constString.substring(start, end));
+            return new String(this.constString.substring(start, _end));
         }
 
         public toLowerCase(): String {

src/emitterlua.ts

@@ -50,7 +50,7 @@ export class EmitterLua {
             this.ops[ts.SyntaxKind.PlusToken] = '+';
             this.ops[ts.SyntaxKind.MinusToken] = '-';
             this.ops[ts.SyntaxKind.AsteriskToken] = '*';
-            this.ops[ts.SyntaxKind.AsteriskAsteriskToken] = '**';
+            this.ops[ts.SyntaxKind.AsteriskAsteriskToken] = '^';
             this.ops[ts.SyntaxKind.PercentToken] = '%';
             this.ops[ts.SyntaxKind.CaretToken] = '~';
             this.ops[ts.SyntaxKind.SlashToken] = '/';
@@ -2440,7 +2440,7 @@ export class EmitterLua {
     }
 
     private processStringLiteral(node: ts.StringLiteral): void {
-        this.functionContext.textCode.push("\"" + node.text.replace(/(\r?\n)/g, "\\$1") + "\"");
+        this.functionContext.textCode.push("\"" + node.text.replace(/\\/g, "\\\\").replace(/(\r?\n)/g, "\\$1") + "\"");
     }
 
     private processNoSubstitutionTemplateLiteral(node: ts.NoSubstitutionTemplateLiteral): void {