cerxes/babel
3
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

babel/babylon#328 babel/babylon#205 ?. as nullPropagation. For now it only works for member access. (.? or ?.[) If the object is undefined this will return undefined. If the object on which you want to access the property is defined, the value of the propery will be given back.

Browse Source
This commit is contained in:
Kristof Degrave
2017-02-11 21:09:27 +01:00
parent b902fe6c7b
commit 1eaf01661b
6 changed files with 68 additions and 75 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
test/fixtures/experimental/uncategorised/63/actual.js vendored
View File

@@ -2,4 +2,4 @@ o?.x?.y
o?.x ? o.x.z?.w : o.y?.z?.w
o?[0]?[1]?.x
o?.[0]?.["1"]?.x

78
test/fixtures/experimental/uncategorised/63/expected.json vendored
View File

@@ -1,7 +1,7 @@
{
"type": "File",
"start": 0,
"end": 50,
"end": 54,
"loc": {
"start": {
"line": 1,
@@ -9,13 +9,13 @@
},
"end": {
"line": 5,
"column": 12
"column": 16
}
},
"program": {
"type": "Program",
"start": 0,
"end": 50,
"end": 54,
"loc": {
"start": {
"line": 1,
@@ -23,7 +23,7 @@
},
"end": {
"line": 5,
"column": 12
"column": 16
}
},
"sourceType": "script",
@@ -85,7 +85,7 @@
}
},
"name": "o",
"existentialOperator": true
"nullPropagation": true
},
"property": {
"type": "Identifier",
@@ -104,7 +104,7 @@
"name": "x"
},
"computed": false,
"existentialOperator": true
"nullPropagation": true
},
"property": {
"type": "Identifier",
@@ -182,7 +182,7 @@
}
},
"name": "o",
"existentialOperator": true
"nullPropagation": true
},
"property": {
"type": "Identifier",
@@ -295,7 +295,7 @@
"name": "z"
},
"computed": false,
"existentialOperator": true
"nullPropagation": true
},
"property": {
"type": "Identifier",
@@ -390,7 +390,7 @@
"name": "y"
},
"computed": false,
"existentialOperator": true
"nullPropagation": true
},
"property": {
"type": "Identifier",
@@ -409,7 +409,7 @@
"name": "z"
},
"computed": false,
"existentialOperator": true
"nullPropagation": true
},
"property": {
"type": "Identifier",
@@ -434,7 +434,7 @@
{
"type": "ExpressionStatement",
"start": 38,
"end": 50,
"end": 54,
"loc": {
"start": {
"line": 5,
@@ -442,13 +442,13 @@
},
"end": {
"line": 5,
"column": 12
"column": 16
}
},
"expression": {
"type": "MemberExpression",
"start": 38,
"end": 50,
"end": 54,
"loc": {
"start": {
"line": 5,
@@ -456,13 +456,13 @@
},
"end": {
"line": 5,
"column": 12
"column": 16
}
},
"object": {
"type": "MemberExpression",
"start": 38,
"end": 47,
"end": 51,
"loc": {
"start": {
"line": 5,
@@ -470,13 +470,13 @@
},
"end": {
"line": 5,
"column": 9
"column": 13
}
},
"object": {
"type": "MemberExpression",
"start": 38,
"end": 43,
"end": 44,
"loc": {
"start": {
"line": 5,
@@ -484,7 +484,7 @@
},
"end": {
"line": 5,
"column": 5
"column": 6
}
},
"object": {
@@ -502,62 +502,58 @@
}
},
"name": "o",
"existentialOperator": true
"nullPropagation": true
},
"property": {
"type": "Literal",
"start": 41,
"end": 42,
"type": "NumericLiteral",
"start": 42,
"end": 43,
"loc": {
"start": {
"line": 5,
"column": 3
"column": 4
},
"end": {
"line": 5,
"column": 4
"column": 5
}
},
"value": 0,
"rawValue": 0,
"raw": "0"
"value": 0
},
"computed": true,
"existentialOperator": true
"nullPropagation": true
},
"property": {
"type": "Literal",
"start": 45,
"end": 46,
"type": "StringLiteral",
"start": 47,
"end": 50,
"loc": {
"start": {
"line": 5,
"column": 7
"column": 9
},
"end": {
"line": 5,
"column": 8
"column": 12
}
},
"value": 1,
"rawValue": 1,
"raw": "1"
"value": "1"
},
"computed": true,
"existentialOperator": true
"nullPropagation": true
},
"property": {
"type": "Identifier",
"start": 49,
"end": 50,
"start": 53,
"end": 54,
"loc": {
"start": {
"line": 5,
"column": 11
"column": 15
},
"end": {
"line": 5,
"column": 12
"column": 16
}
},
"name": "x"