(feat) Add String Interpolation to AssemblyScript near/near-sdk-as#201

Author: developerfred

NOTICE

@@ -25,6 +25,7 @@ under the licensing terms detailed in LICENSE:
 * Guido Zuidhof <[email protected]>
 * ncave <[email protected]>
 * Andrew Davis <[email protected]>
+* Fred <[email protected]>
 
 Portions of this software are derived from third-party works licensed under
 the following terms:

src/ast.ts

@@ -376,10 +376,7 @@ export abstract class Node {
     value: string,
     range: Range
   ): StringLiteralExpression {
-    var expr = new StringLiteralExpression();
-    expr.range = range;
-    expr.value = value;
-    return expr;
+    return new TemplateLiteralExpression(value, range);
   }
 
   static createSuperExpression(
@@ -1445,10 +1442,13 @@ export class StringLiteralExpression extends LiteralExpression {
 
 /** Represents a string template literal expression. */
 export class TemplateLiteralExpression extends LiteralExpression {
-  literalKind = LiteralKind.TEMPLATE;
-
-  /** String value without quotes. */
-  value: string;
+  constructor(
+    /** String value without quotes. */
+    public expresssionParts: Expression[],
+    /** Source range. */
+    range: Range
+) {
+    super(LiteralKind.TEMPLATE, range);
 }
 
 /** Represents a `super` expression. */

src/compiler.ts

@@ -8780,8 +8780,8 @@ export class Compiler extends DiagnosticEmitter {
     return module.unreachable();
   }
 
-  compileTemplateLiteral(arg0: TemplateLiteralExpression, constraints: Constraints): ExpressionRef {
-    const innerExpressions: ExpressionRef[] = [];
+  compileTemplateLiteral(expr: TemplateLiteralExpression, constraints: Constraints): ExpressionRef {
+    const innerExpressions: ExpressionRef[] = expr.expresssionParts;
 
     return 0;
   }