Huáng Jùnliàng 79d3276f61
Overhaul comment attachment (#13521)
* refactor: inline pushComment

* chore: add benchmark cases

* perf: overhaul comment attachment

* cleanup

* update test fixtures

They are all bugfixes.

* fix: merge HTMLComment parsing to skipSpace

* perf: remove unattachedCommentStack

baseline 128 nested leading comments: 11_034 ops/sec ±50.64% (0.091ms)
baseline 256 nested leading comments: 6_037 ops/sec ±11.46% (0.166ms)
baseline 512 nested leading comments: 3_077 ops/sec ±2.31% (0.325ms)
baseline 1024 nested leading comments: 1_374 ops/sec ±3.22% (0.728ms)
current 128 nested leading comments: 11_027 ops/sec ±37.41% (0.091ms)
current 256 nested leading comments: 6_736 ops/sec ±1.39% (0.148ms)
current 512 nested leading comments: 3_306 ops/sec ±0.69% (0.302ms)
current 1024 nested leading comments: 1_579 ops/sec ±2.09% (0.633ms)

baseline 128 nested trailing comments: 10_073 ops/sec ±42.95% (0.099ms)
baseline 256 nested trailing comments: 6_294 ops/sec ±2.19% (0.159ms)
baseline 512 nested trailing comments: 3_041 ops/sec ±0.8% (0.329ms)
baseline 1024 nested trailing comments: 1_530 ops/sec ±1.18% (0.654ms)
current 128 nested trailing comments: 11_461 ops/sec ±44.89% (0.087ms)
current 256 nested trailing comments: 7_212 ops/sec ±1.6% (0.139ms)
current 512 nested trailing comments: 3_403 ops/sec ±1% (0.294ms)
current 1024 nested trailing comments: 1_539 ops/sec ±1.49% (0.65ms)

* fix: do not expose CommentWhitespace type

* add comments on CommentWhitespace

* add test case for #11576

* fix: mark containerNode be the innermost node containing commentWS

* fix: adjust trailing comma comments for Record/Tuple/OptionalCall

* fix: drain comment stacks in parseExpression

* docs: update comments

* add a new benchmark

* chore: containerNode => containingNode

* add more benchmark cases

* fix: avoid finishNodeAt in stmtToDirective

* finalize comment right after containerNode is set

* add testcase about directive

* fix: finish SequenceExpression at current pos and adjust later

* chore: rename test cases

* add new test case on switch statement

* fix: adjust comments after trailing comma of function params

* add comment attachment design doc

* misc fix

* fix: reset previous trailing comments when parsing async method/accessor

* chore: add more comment testcases

* fix flow errors

* fix: handle comments when parsing async arrow

* fix: handle comments when "static" is a class modifier

* fix flow errors

* fix: handle comments when parsing async function/do

* refactor: simplify resetPreviousNodeTrailingComments

* update test fixtures
2021-07-07 11:51:40 -04:00

146 lines
4.7 KiB
JSON

{
"type": "File",
"start":0,"end":84,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":84}},
"program": {
"type": "Program",
"start":0,"end":84,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":84}},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start":8,"end":76,"loc":{"start":{"line":1,"column":8},"end":{"line":1,"column":76}},
"leadingComments": [
{
"type": "CommentBlock",
"value": " 1 ",
"start":0,"end":7,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":7}}
}
],
"trailingComments": [
{
"type": "CommentBlock",
"value": " 9 ",
"start":77,"end":84,"loc":{"start":{"line":1,"column":77},"end":{"line":1,"column":84}}
}
],
"innerComments": [
{
"type": "CommentBlock",
"value": " 2 ",
"start":9,"end":16,"loc":{"start":{"line":1,"column":9},"end":{"line":1,"column":16}}
},
{
"type": "CommentBlock",
"value": " 8 ",
"start":68,"end":75,"loc":{"start":{"line":1,"column":68},"end":{"line":1,"column":75}}
}
],
"expression": {
"type": "SequenceExpression",
"start":27,"end":47,"loc":{"start":{"line":1,"column":27},"end":{"line":1,"column":47}},
"leadingComments": [
{
"type": "CommentBlock",
"value": " 3 ",
"start":19,"end":26,"loc":{"start":{"line":1,"column":19},"end":{"line":1,"column":26}}
}
],
"trailingComments": [
{
"type": "CommentBlock",
"value": " 7 ",
"start":58,"end":65,"loc":{"start":{"line":1,"column":58},"end":{"line":1,"column":65}}
}
],
"extra": {
"parenthesized": true,
"parenStart": 8
},
"expressions": [
{
"type": "Identifier",
"start":27,"end":28,"loc":{"start":{"line":1,"column":27},"end":{"line":1,"column":28},"identifierName":"a"},
"trailingComments": [
{
"type": "CommentBlock",
"value": " 4 ",
"start":29,"end":36,"loc":{"start":{"line":1,"column":29},"end":{"line":1,"column":36}}
}
],
"name": "a"
},
{
"type": "Identifier",
"start":46,"end":47,"loc":{"start":{"line":1,"column":46},"end":{"line":1,"column":47},"identifierName":"b"},
"leadingComments": [
{
"type": "CommentBlock",
"value": " 5 ",
"start":38,"end":45,"loc":{"start":{"line":1,"column":38},"end":{"line":1,"column":45}}
}
],
"trailingComments": [
{
"type": "CommentBlock",
"value": " 6 ",
"start":48,"end":55,"loc":{"start":{"line":1,"column":48},"end":{"line":1,"column":55}}
}
],
"name": "b"
}
]
}
}
],
"directives": []
},
"comments": [
{
"type": "CommentBlock",
"value": " 1 ",
"start":0,"end":7,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":7}}
},
{
"type": "CommentBlock",
"value": " 2 ",
"start":9,"end":16,"loc":{"start":{"line":1,"column":9},"end":{"line":1,"column":16}}
},
{
"type": "CommentBlock",
"value": " 3 ",
"start":19,"end":26,"loc":{"start":{"line":1,"column":19},"end":{"line":1,"column":26}}
},
{
"type": "CommentBlock",
"value": " 4 ",
"start":29,"end":36,"loc":{"start":{"line":1,"column":29},"end":{"line":1,"column":36}}
},
{
"type": "CommentBlock",
"value": " 5 ",
"start":38,"end":45,"loc":{"start":{"line":1,"column":38},"end":{"line":1,"column":45}}
},
{
"type": "CommentBlock",
"value": " 6 ",
"start":48,"end":55,"loc":{"start":{"line":1,"column":48},"end":{"line":1,"column":55}}
},
{
"type": "CommentBlock",
"value": " 7 ",
"start":58,"end":65,"loc":{"start":{"line":1,"column":58},"end":{"line":1,"column":65}}
},
{
"type": "CommentBlock",
"value": " 8 ",
"start":68,"end":75,"loc":{"start":{"line":1,"column":68},"end":{"line":1,"column":75}}
},
{
"type": "CommentBlock",
"value": " 9 ",
"start":77,"end":84,"loc":{"start":{"line":1,"column":77},"end":{"line":1,"column":84}}
}
]
}