From b916de78a05d9f6841092caa4ba705c9c9363dd3 Mon Sep 17 00:00:00 2001
From: Nicolas Pelletier <npelletier@wivora.fr>
Date: Mon, 20 Mar 2017 13:35:12 +0100
Subject: [PATCH 1/3] Fix comparison with single "=" by throwing a better error
 message.

---
 jmespath.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/jmespath.js b/jmespath.js
index f59e8e4..d7a8638 100644
--- a/jmespath.js
+++ b/jmespath.js
@@ -402,6 +402,10 @@
               if (stream[this._current] === "=") {
                   this._current++;
                   return {type: TOK_EQ, value: "==", start: start};
+              } else {
+                var error = new Error("Unexpected token: do you mean `==' operator ?");
+                error.name = "ParserError";
+                throw error;
               }
           }
       },

From 2c1ed0b0666b2ce1e8f2813adde43f0853aca978 Mon Sep 17 00:00:00 2001
From: Nicolas Pelletier <npelletier@wivora.fr>
Date: Mon, 20 Mar 2017 15:14:18 +0100
Subject: [PATCH 2/3] Fix on requesting data stored in Native named objects
 (e.g. Error, Date, Function, ...)

---
 jmespath.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/jmespath.js b/jmespath.js
index d7a8638..b26874d 100644
--- a/jmespath.js
+++ b/jmespath.js
@@ -17,6 +17,13 @@
     }
   }
 
+  function isTraversable(obj) {
+    if (obj == null) return false;
+    var type = typeof obj;
+    if (type != 'function' && type != 'object') return false;
+    return true;
+  }
+
   function strictDeepEqual(first, second) {
     // Check the scalar case first.
     if (first === second) {
@@ -872,7 +879,7 @@
             case "Field":
               if (value === null ) {
                   return null;
-              } else if (isObject(value)) {
+              } else if (isTraversable(value)) {
                   field = value[node.name];
                   if (field === undefined) {
                       return null;

From a9c465c26777d81cb239e82771d9ab54109e2b77 Mon Sep 17 00:00:00 2001
From: Nicolas Pelletier <npelletier@wivora.fr>
Date: Sat, 27 Mar 2021 22:33:35 +0100
Subject: [PATCH 3/3] chore(exec): add method to execute ast based query

---
 jmespath.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/jmespath.js b/jmespath.js
index b26874d..61a815f 100644
--- a/jmespath.js
+++ b/jmespath.js
@@ -1671,6 +1671,14 @@
       return interpreter.search(node, data);
   }
 
+  function exec(ast, data) {
+      var runtime = new Runtime();
+      var interpreter = new TreeInterpreter(runtime);
+      runtime._interpreter = interpreter;
+      return interpreter.visit(ast, data);
+  }
+
+  exports.exec = exec;
   exports.tokenize = tokenize;
   exports.compile = compile;
   exports.search = search;