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Allow trailing commas in array patterns

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Closes #975
This commit is contained in:
Marijn Haverbeke
2015-03-12 22:39:00 +01:00
parent 811d19ab76
commit 16a342082a
2 changed files with 116 additions and 7 deletions
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103
test/tests-harmony.js
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@@ -15263,6 +15263,109 @@ test("var _\\u{104A6} = 10;", {
]
}, {ecmaVersion: 6});
test("let [x,] = [1]", {
"start": 0,
"body": [
{
"start": 0,
"declarations": [
{
"start": 4,
"id": {
"start": 4,
"elements": [
{
"start": 5,
"name": "x",
"type": "Identifier",
"end": 6
}
],
"type": "ArrayPattern",
"end": 8
},
"init": {
"start": 11,
"elements": [
{
"start": 12,
"value": 1,
"raw": "1",
"type": "Literal",
"end": 13
}
],
"type": "ArrayExpression",
"end": 14
},
"type": "VariableDeclarator",
"end": 14
}
],
"kind": "let",
"type": "VariableDeclaration",
"end": 14
}
],
"type": "Program",
"end": 14
}, {ecmaVersion: 6});
test("let {x} = y", {
"start": 0,
"body": [
{
"start": 0,
"declarations": [
{
"start": 4,
"id": {
"start": 4,
"properties": [
{
"start": 5,
"method": false,
"shorthand": true,
"computed": false,
"key": {
"start": 5,
"name": "x",
"type": "Identifier",
"end": 6
},
"kind": "init",
"value": {
"start": 5,
"name": "x",
"type": "Identifier",
"end": 6
},
"type": "Property",
"end": 6
}
],
"type": "ObjectPattern",
"end": 7
},
"init": {
"start": 10,
"name": "y",
"type": "Identifier",
"end": 11
},
"type": "VariableDeclarator",
"end": 11
}
],
"kind": "let",
"type": "VariableDeclaration",
"end": 11
}
],
"type": "Program",
"end": 11
}, {ecmaVersion: 6})
testFail("var _𖫵 = 11;", "Unexpected character '𖫵' (1:5)", {ecmaVersion: 6});
testFail("var 𫠞_ = 12;", "Unexpected character '𫠞' (1:4)", {ecmaVersion: 6});
testFail("var 𫠝_ = 10;", "Unexpected character '𫠝' (1:4)", {ecmaVersion: 5});