Fix: Convert TSTypeOfExpression to UnaryExpression (fixes #85) (#86)

eslint · Sep 12, 2016 · 5c47ad5 · 5c47ad5
1 parent 799fd63
commit 5c47ad5
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diff --git 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
@@ -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
@@ -0,0 +1 @@
+typeof 'str'