From fc67123115b26be13a6a712a559d9b2967919220 Mon Sep 17 00:00:00 2001
From: James Henry <james@henry.sc>
Date: Sat, 10 Sep 2016 13:07:50 +0100
Subject: [PATCH] Fix: Convert TSTypeOfExpression to UnaryExpression (fixes
 #85)

---
 lib/ast-converter.js                          |   9 ++
 .../basics/typeof-expression.result.js        | 113 ++++++++++++++++++
 .../fixtures/basics/typeof-expression.src.js  |   1 +
 3 files changed, 123 insertions(+)
 create mode 100644 tests/fixtures/basics/typeof-expression.result.js
 create mode 100644 tests/fixtures/basics/typeof-expression.src.js

diff --git a/lib/ast-converter.js b/lib/ast-converter.js
index b63aa32..23a05c6 100644
--- a/lib/ast-converter.js
+++ b/lib/ast-converter.js
@@ -1484,6 +1484,15 @@ module.exports = function(ast, extra) {
                 });
                 break;
 
+            case SyntaxKind.TypeOfExpression:
+                assign(result, {
+                    type: "UnaryExpression",
+                    operator: "typeof",
+                    prefix: true,
+                    argument: convertChild(node.expression)
+                });
+                break;
+
             // Binary Operations
 
             case SyntaxKind.BinaryExpression:
diff --git a/tests/fixtures/basics/typeof-expression.result.js b/tests/fixtures/basics/typeof-expression.result.js
new file mode 100644
index 0000000..f2bc933
--- /dev/null
+++ b/tests/fixtures/basics/typeof-expression.result.js
@@ -0,0 +1,113 @@
+module.exports = {
+    "type": "Program",
+    "range": [
+        0,
+        12
+    ],
+    "loc": {
+        "start": {
+            "line": 1,
+            "column": 0
+        },
+        "end": {
+            "line": 1,
+            "column": 12
+        }
+    },
+    "body": [
+        {
+            "type": "ExpressionStatement",
+            "range": [
+                0,
+                12
+            ],
+            "loc": {
+                "start": {
+                    "line": 1,
+                    "column": 0
+                },
+                "end": {
+                    "line": 1,
+                    "column": 12
+                }
+            },
+            "expression": {
+                "type": "UnaryExpression",
+                "operator": "typeof",
+                "prefix": true,
+                "range": [
+                    0,
+                    12
+                ],
+                "loc": {
+                    "start": {
+                        "line": 1,
+                        "column": 0
+                    },
+                    "end": {
+                        "line": 1,
+                        "column": 12
+                    }
+                },
+                "argument": {
+                    "type": "Literal",
+                    "range": [
+                        7,
+                        12
+                    ],
+                    "loc": {
+                        "start": {
+                            "line": 1,
+                            "column": 7
+                        },
+                        "end": {
+                            "line": 1,
+                            "column": 12
+                        }
+                    },
+                    "value": "str",
+                    "raw": "'str'"
+                }
+            }
+        }
+    ],
+    "sourceType": "script",
+    "tokens": [
+        {
+            "type": "Keyword",
+            "value": "typeof",
+            "range": [
+                0,
+                6
+            ],
+            "loc": {
+                "start": {
+                    "line": 1,
+                    "column": 0
+                },
+                "end": {
+                    "line": 1,
+                    "column": 6
+                }
+            }
+        },
+        {
+            "type": "String",
+            "value": "'str'",
+            "range": [
+                7,
+                12
+            ],
+            "loc": {
+                "start": {
+                    "line": 1,
+                    "column": 7
+                },
+                "end": {
+                    "line": 1,
+                    "column": 12
+                }
+            }
+        }
+    ]
+};
diff --git a/tests/fixtures/basics/typeof-expression.src.js b/tests/fixtures/basics/typeof-expression.src.js
new file mode 100644
index 0000000..43d0ea7
--- /dev/null
+++ b/tests/fixtures/basics/typeof-expression.src.js
@@ -0,0 +1 @@
+typeof 'str'