glayzzle#188 - introducing the ExpressionStatement node

Author: ichiriac

src/ast.js

@@ -364,6 +364,7 @@ AST.prototype.prepare = function(kind, docs, parser) {
   require("./ast/eval"),
   require("./ast/exit"),
   require("./ast/expression"),
+  require("./ast/expressionstatement"),
   require("./ast/for"),
   require("./ast/foreach"),
   require("./ast/function"),

src/ast/expressionstatement.js

@@ -0,0 +1,24 @@
+/**
+ * Copyright (C) 2018 Glayzzle (BSD3 License)
+ * @authors https://github.com/glayzzle/php-parser/graphs/contributors
+ * @url http://glayzzle.com
+ */
+"use strict";
+
+const Statement = require("./statement");
+const KIND = "expressionstatement";
+
+/**
+ * Defines an expression based statement
+ * @constructor ExpressionStatement
+ * @extends {Statement}
+ * @property {Expression} expression
+ */
+module.exports = Statement.extends(KIND, function ExpressionStatement(
+  expr,
+  docs,
+  location
+) {
+  Statement.apply(this, [KIND, docs, location]);
+  this.expression = expr;
+});

src/parser/statement.js

@@ -381,9 +381,10 @@ module.exports = {
 
       default:
         // default fallback expr
+        let statement = this.node("expressionstatement");
         expr = this.read_expr();
         this.expectEndOfStatement(expr);
-        return expr;
+        return statement(expr);
     }
   },
   /**