From e907da611f2f4db7dcd4c1491dfb82f96f80d2e8 Mon Sep 17 00:00:00 2001
From: Daniel Tschinder <daniel.tschinder@researchgate.net>
Date: Tue, 31 Jan 2017 23:46:15 +0100
Subject: [PATCH] Fix #304 and #309

---
 src/parser/expression.js                      |   3 +-
 .../object-rest-spread/16/actual.js           |   1 +
 .../object-rest-spread/16/expected.json       | 243 +++++++++++++++
 .../object-rest-spread/17/actual.js           |   1 +
 .../object-rest-spread/17/expected.json       | 278 ++++++++++++++++++
 5 files changed, 525 insertions(+), 1 deletion(-)
 create mode 100644 test/fixtures/experimental/object-rest-spread/16/actual.js
 create mode 100644 test/fixtures/experimental/object-rest-spread/16/expected.json
 create mode 100644 test/fixtures/experimental/object-rest-spread/17/actual.js
 create mode 100644 test/fixtures/experimental/object-rest-spread/17/expected.json

diff --git a/src/parser/expression.js b/src/parser/expression.js
index df90d47f0a..b0f18a9010 100644
--- a/src/parser/expression.js
+++ b/src/parser/expression.js
@@ -735,8 +735,9 @@ pp.parseObj = function (isPattern, refShorthandDefaultPos) {
     }
 
     if (this.hasPlugin("objectRestSpread") && this.match(tt.ellipsis)) {
-      prop = this.parseSpread();
+      prop = this.parseSpread(isPattern ? { start: 0 } : undefined);
       prop.type = isPattern ? "RestProperty" : "SpreadProperty";
+      if (isPattern) this.toAssignable(prop.argument, true, "object pattern");
       node.properties.push(prop);
       if (isPattern) {
         const position = this.state.start;
diff --git a/test/fixtures/experimental/object-rest-spread/16/actual.js b/test/fixtures/experimental/object-rest-spread/16/actual.js
new file mode 100644
index 0000000000..a267ff84eb
--- /dev/null
+++ b/test/fixtures/experimental/object-rest-spread/16/actual.js
@@ -0,0 +1 @@
+var {...{z}} = { z: 1};
diff --git a/test/fixtures/experimental/object-rest-spread/16/expected.json b/test/fixtures/experimental/object-rest-spread/16/expected.json
new file mode 100644
index 0000000000..6f6be6d836
--- /dev/null
+++ b/test/fixtures/experimental/object-rest-spread/16/expected.json
@@ -0,0 +1,243 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 23,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 23
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 23,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 1,
+        "column": 23
+      }
+    },
+    "sourceType": "script",
+    "body": [
+      {
+        "type": "VariableDeclaration",
+        "start": 0,
+        "end": 23,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 1,
+            "column": 23
+          }
+        },
+        "declarations": [
+          {
+            "type": "VariableDeclarator",
+            "start": 4,
+            "end": 22,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 4
+              },
+              "end": {
+                "line": 1,
+                "column": 22
+              }
+            },
+            "id": {
+              "type": "ObjectPattern",
+              "start": 4,
+              "end": 12,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 4
+                },
+                "end": {
+                  "line": 1,
+                  "column": 12
+                }
+              },
+              "properties": [
+                {
+                  "type": "RestProperty",
+                  "start": 5,
+                  "end": 11,
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 5
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 11
+                    }
+                  },
+                  "argument": {
+                    "type": "ObjectPattern",
+                    "start": 8,
+                    "end": 11,
+                    "loc": {
+                      "start": {
+                        "line": 1,
+                        "column": 8
+                      },
+                      "end": {
+                        "line": 1,
+                        "column": 11
+                      }
+                    },
+                    "properties": [
+                      {
+                        "type": "ObjectProperty",
+                        "start": 9,
+                        "end": 10,
+                        "loc": {
+                          "start": {
+                            "line": 1,
+                            "column": 9
+                          },
+                          "end": {
+                            "line": 1,
+                            "column": 10
+                          }
+                        },
+                        "method": false,
+                        "shorthand": true,
+                        "computed": false,
+                        "key": {
+                          "type": "Identifier",
+                          "start": 9,
+                          "end": 10,
+                          "loc": {
+                            "start": {
+                              "line": 1,
+                              "column": 9
+                            },
+                            "end": {
+                              "line": 1,
+                              "column": 10
+                            },
+                            "identifierName": "z"
+                          },
+                          "name": "z"
+                        },
+                        "value": {
+                          "type": "Identifier",
+                          "start": 9,
+                          "end": 10,
+                          "loc": {
+                            "start": {
+                              "line": 1,
+                              "column": 9
+                            },
+                            "end": {
+                              "line": 1,
+                              "column": 10
+                            },
+                            "identifierName": "z"
+                          },
+                          "name": "z"
+                        },
+                        "extra": {
+                          "shorthand": true
+                        }
+                      }
+                    ]
+                  }
+                }
+              ]
+            },
+            "init": {
+              "type": "ObjectExpression",
+              "start": 15,
+              "end": 22,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 15
+                },
+                "end": {
+                  "line": 1,
+                  "column": 22
+                }
+              },
+              "properties": [
+                {
+                  "type": "ObjectProperty",
+                  "start": 17,
+                  "end": 21,
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 17
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 21
+                    }
+                  },
+                  "method": false,
+                  "shorthand": false,
+                  "computed": false,
+                  "key": {
+                    "type": "Identifier",
+                    "start": 17,
+                    "end": 18,
+                    "loc": {
+                      "start": {
+                        "line": 1,
+                        "column": 17
+                      },
+                      "end": {
+                        "line": 1,
+                        "column": 18
+                      },
+                      "identifierName": "z"
+                    },
+                    "name": "z"
+                  },
+                  "value": {
+                    "type": "NumericLiteral",
+                    "start": 20,
+                    "end": 21,
+                    "loc": {
+                      "start": {
+                        "line": 1,
+                        "column": 20
+                      },
+                      "end": {
+                        "line": 1,
+                        "column": 21
+                      }
+                    },
+                    "extra": {
+                      "rawValue": 1,
+                      "raw": "1"
+                    },
+                    "value": 1
+                  }
+                }
+              ]
+            }
+          }
+        ],
+        "kind": "var"
+      }
+    ],
+    "directives": []
+  }
+}
\ No newline at end of file
diff --git a/test/fixtures/experimental/object-rest-spread/17/actual.js b/test/fixtures/experimental/object-rest-spread/17/actual.js
new file mode 100644
index 0000000000..c27b7e33c4
--- /dev/null
+++ b/test/fixtures/experimental/object-rest-spread/17/actual.js
@@ -0,0 +1 @@
+var { ...{ x = 5 } } = {x : 1};
diff --git a/test/fixtures/experimental/object-rest-spread/17/expected.json b/test/fixtures/experimental/object-rest-spread/17/expected.json
new file mode 100644
index 0000000000..0c15cfbe9c
--- /dev/null
+++ b/test/fixtures/experimental/object-rest-spread/17/expected.json
@@ -0,0 +1,278 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 31,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 31
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 31,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 1,
+        "column": 31
+      }
+    },
+    "sourceType": "script",
+    "body": [
+      {
+        "type": "VariableDeclaration",
+        "start": 0,
+        "end": 31,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 1,
+            "column": 31
+          }
+        },
+        "declarations": [
+          {
+            "type": "VariableDeclarator",
+            "start": 4,
+            "end": 30,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 4
+              },
+              "end": {
+                "line": 1,
+                "column": 30
+              }
+            },
+            "id": {
+              "type": "ObjectPattern",
+              "start": 4,
+              "end": 20,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 4
+                },
+                "end": {
+                  "line": 1,
+                  "column": 20
+                }
+              },
+              "properties": [
+                {
+                  "type": "RestProperty",
+                  "start": 6,
+                  "end": 18,
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 6
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 18
+                    }
+                  },
+                  "argument": {
+                    "type": "ObjectPattern",
+                    "start": 9,
+                    "end": 18,
+                    "loc": {
+                      "start": {
+                        "line": 1,
+                        "column": 9
+                      },
+                      "end": {
+                        "line": 1,
+                        "column": 18
+                      }
+                    },
+                    "properties": [
+                      {
+                        "type": "ObjectProperty",
+                        "start": 11,
+                        "end": 16,
+                        "loc": {
+                          "start": {
+                            "line": 1,
+                            "column": 11
+                          },
+                          "end": {
+                            "line": 1,
+                            "column": 16
+                          }
+                        },
+                        "method": false,
+                        "shorthand": true,
+                        "computed": false,
+                        "key": {
+                          "type": "Identifier",
+                          "start": 11,
+                          "end": 12,
+                          "loc": {
+                            "start": {
+                              "line": 1,
+                              "column": 11
+                            },
+                            "end": {
+                              "line": 1,
+                              "column": 12
+                            },
+                            "identifierName": "x"
+                          },
+                          "name": "x"
+                        },
+                        "value": {
+                          "type": "AssignmentPattern",
+                          "start": 11,
+                          "end": 16,
+                          "loc": {
+                            "start": {
+                              "line": 1,
+                              "column": 11
+                            },
+                            "end": {
+                              "line": 1,
+                              "column": 16
+                            }
+                          },
+                          "left": {
+                            "type": "Identifier",
+                            "start": 11,
+                            "end": 12,
+                            "loc": {
+                              "start": {
+                                "line": 1,
+                                "column": 11
+                              },
+                              "end": {
+                                "line": 1,
+                                "column": 12
+                              },
+                              "identifierName": "x"
+                            },
+                            "name": "x"
+                          },
+                          "right": {
+                            "type": "NumericLiteral",
+                            "start": 15,
+                            "end": 16,
+                            "loc": {
+                              "start": {
+                                "line": 1,
+                                "column": 15
+                              },
+                              "end": {
+                                "line": 1,
+                                "column": 16
+                              }
+                            },
+                            "extra": {
+                              "rawValue": 5,
+                              "raw": "5"
+                            },
+                            "value": 5
+                          }
+                        },
+                        "extra": {
+                          "shorthand": true
+                        }
+                      }
+                    ]
+                  }
+                }
+              ]
+            },
+            "init": {
+              "type": "ObjectExpression",
+              "start": 23,
+              "end": 30,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 23
+                },
+                "end": {
+                  "line": 1,
+                  "column": 30
+                }
+              },
+              "properties": [
+                {
+                  "type": "ObjectProperty",
+                  "start": 24,
+                  "end": 29,
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 24
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 29
+                    }
+                  },
+                  "method": false,
+                  "shorthand": false,
+                  "computed": false,
+                  "key": {
+                    "type": "Identifier",
+                    "start": 24,
+                    "end": 25,
+                    "loc": {
+                      "start": {
+                        "line": 1,
+                        "column": 24
+                      },
+                      "end": {
+                        "line": 1,
+                        "column": 25
+                      },
+                      "identifierName": "x"
+                    },
+                    "name": "x"
+                  },
+                  "value": {
+                    "type": "NumericLiteral",
+                    "start": 28,
+                    "end": 29,
+                    "loc": {
+                      "start": {
+                        "line": 1,
+                        "column": 28
+                      },
+                      "end": {
+                        "line": 1,
+                        "column": 29
+                      }
+                    },
+                    "extra": {
+                      "rawValue": 1,
+                      "raw": "1"
+                    },
+                    "value": 1
+                  }
+                }
+              ]
+            }
+          }
+        ],
+        "kind": "var"
+      }
+    ],
+    "directives": []
+  }
+}
\ No newline at end of file