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

fix(babel-parser): avoid state.clone() to clone the whole token store (#11029)

Browse Source 
* fix(babel-parser): avoid state.clone() to clone the whole token store

Fixed the performance issue on large input when turned on option {tokens: true} and typescript plugin which uses quite a few state.clone().

* test(babel-parser): turn on 2 typescript tests with tokens:true

The output.json is generated by old master to make sure no regression.

* fix(babel-parser): avoid duplicated tokens trapped by mainly typescript/flow plugins

* test(babel-parser): update output.json to latest master result

* chore(babel-parser): improve performance by storing tokensLength in state
This commit is contained in:
Chunpeng Huo 2020-01-20 14:38:33 +11:00 committed by Huáng Jùnliàng
parent 740064ced7
commit 9bc04baeb5
11 changed files with 1455 additions and 514 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
packages/babel-parser/src/parser/statement.js
View File

@ -67,7 +67,7 @@ export default class StatementParser extends ExpressionParser {
file.program = this.finishNode(program, "Program"); file.program = this.finishNode(program, "Program");
file.comments = this.state.comments; file.comments = this.state.comments;
if (this.options.tokens) file.tokens = this.state.tokens; if (this.options.tokens) file.tokens = this.tokens;
return this.finishNode(file, "File"); return this.finishNode(file, "File");
} }

16
packages/babel-parser/src/tokenizer/index.js
View File

@ -1,6 +1,7 @@
// @flow // @flow
import type { Options } from "../options"; import type { Options } from "../options";
import * as N from "../types";
import type { Position } from "../util/location"; import type { Position } from "../util/location";
import * as charCodes from "charcodes"; import * as charCodes from "charcodes";
import { isIdentifierStart, isIdentifierChar } from "../util/identifier"; import { isIdentifierStart, isIdentifierChar } from "../util/identifier";
@ -114,6 +115,9 @@ export default class Tokenizer extends LocationParser {
isLookahead: boolean; isLookahead: boolean;
// Token store.
tokens: Array<Token | N.Comment> = [];
constructor(options: Options, input: string) { constructor(options: Options, input: string) {
super(); super();
this.state = new State(); this.state = new State();
@ -123,13 +127,21 @@ export default class Tokenizer extends LocationParser {
this.isLookahead = false; this.isLookahead = false;
} }
pushToken(token: Token | N.Comment) {
// Pop out invalid tokens trapped by try-catch parsing.
// Those parsing branches are mainly created by typescript and flow plugins.
this.tokens.length = this.state.tokensLength;
this.tokens.push(token);
++this.state.tokensLength;
}
// Move to the next token // Move to the next token
next(): void { next(): void {
if (!this.isLookahead) { if (!this.isLookahead) {
this.checkKeywordEscapes(); this.checkKeywordEscapes();
if (this.options.tokens) { if (this.options.tokens) {
this.state.tokens.push(new Token(this.state)); this.pushToken(new Token(this.state));
} }
} }
@ -242,7 +254,7 @@ export default class Tokenizer extends LocationParser {
loc: new SourceLocation(startLoc, endLoc), loc: new SourceLocation(startLoc, endLoc),
}; };
if (this.options.tokens) this.state.tokens.push(comment); if (this.options.tokens) this.pushToken(comment);
this.state.comments.push(comment); this.state.comments.push(comment);
this.addComment(comment); this.addComment(comment);
} }

7
packages/babel-parser/src/tokenizer/state.js
View File

@ -5,7 +5,6 @@ import * as N from "../types";
import { Position } from "../util/location"; import { Position } from "../util/location";
import { types as ct, type TokContext } from "./context"; import { types as ct, type TokContext } from "./context";
import type { Token } from "./index";
import { types as tt, type TokenType } from "./types"; import { types as tt, type TokenType } from "./types";
type TopicContextState = { type TopicContextState = {
@ -93,9 +92,6 @@ export default class State {
yieldPos: number = -1; yieldPos: number = -1;
awaitPos: number = -1; awaitPos: number = -1;
// Token store.
tokens: Array<Token | N.Comment> = [];
// Comment store. // Comment store.
comments: Array<N.Comment> = []; comments: Array<N.Comment> = [];
@ -153,6 +149,9 @@ export default class State {
// `export default foo;` and `export { foo as default };`. // `export default foo;` and `export { foo as default };`.
exportedIdentifiers: Array<string> = []; exportedIdentifiers: Array<string> = [];
// Tokens length in token store
tokensLength: number = 0;
curPosition(): Position { curPosition(): Position {
return new Position(this.curLine, this.pos - this.lineStart); return new Position(this.curLine, this.pos - this.lineStart);
} }

0
packages/babel-parser/test/fixtures/typescript/arrow-function/async-generic/input.ts → packages/babel-parser/test/fixtures/typescript/arrow-function/async-generic-tokens-true/input.ts vendored
View File

5
packages/babel-parser/test/fixtures/typescript/arrow-function/async-generic-tokens-true/options.json vendored Normal file
View File

@ -0,0 +1,5 @@
{
"sourceType": "module",
"plugins": ["typescript"],
"tokens": true
}

623
packages/babel-parser/test/fixtures/typescript/arrow-function/async-generic-tokens-true/output.json vendored Normal file
View File

@ -0,0 +1,623 @@
{
"type": "File",
"start": 0,
"end": 24,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 24
}
},
"program": {
"type": "Program",
"start": 0,
"end": 24,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 24
}
},
"sourceType": "module",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 24,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 24
}
},
"expression": {
"type": "ArrowFunctionExpression",
"start": 0,
"end": 23,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 23
}
},
"typeParameters": {
"type": "TSTypeParameterDeclaration",
"start": 6,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 9
}
},
"params": [
{
"type": "TSTypeParameter",
"start": 7,
"end": 8,
"loc": {
"start": {
"line": 1,
"column": 7
},
"end": {
"line": 1,
"column": 8
}
},
"name": "T"
}
]
},
"params": [
{
"type": "Identifier",
"start": 10,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 10
},
"end": {
"line": 1,
"column": 14
},
"identifierName": "a"
},
"name": "a",
"typeAnnotation": {
"type": "TSTypeAnnotation",
"start": 11,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 11
},
"end": {
"line": 1,
"column": 14
}
},
"typeAnnotation": {
"type": "TSTypeReference",
"start": 13,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 13
},
"end": {
"line": 1,
"column": 14
}
},
"typeName": {
"type": "Identifier",
"start": 13,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 13
},
"end": {
"line": 1,
"column": 14
},
"identifierName": "T"
},
"name": "T"
}
}
}
}
],
"returnType": {
"type": "TSTypeAnnotation",
"start": 15,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 15
},
"end": {
"line": 1,
"column": 18
}
},
"typeAnnotation": {
"type": "TSTypeReference",
"start": 17,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 18
}
},
"typeName": {
"type": "Identifier",
"start": 17,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 18
},
"identifierName": "T"
},
"name": "T"
}
}
},
"id": null,
"generator": false,
"async": true,
"body": {
"type": "Identifier",
"start": 22,
"end": 23,
"loc": {
"start": {
"line": 1,
"column": 22
},
"end": {
"line": 1,
"column": 23
},
"identifierName": "a"
},
"name": "a"
}
}
}
],
"directives": []
},
"tokens": [
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "async",
"start": 0,
"end": 5,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 5
}
}
},
{
"type": {
"label": "</>/<=/>=",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": 7,
"updateContext": null
},
"value": "<",
"start": 6,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 7
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "T",
"start": 7,
"end": 8,
"loc": {
"start": {
"line": 1,
"column": 7
},
"end": {
"line": 1,
"column": 8
}
}
},
{
"type": {
"label": "</>/<=/>=",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": 7,
"updateContext": null
},
"value": ">",
"start": 8,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 8
},
"end": {
"line": 1,
"column": 9
}
}
},
{
"type": {
"label": "(",
"beforeExpr": true,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"start": 9,
"end": 10,
"loc": {
"start": {
"line": 1,
"column": 9
},
"end": {
"line": 1,
"column": 10
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "a",
"start": 10,
"end": 11,
"loc": {
"start": {
"line": 1,
"column": 10
},
"end": {
"line": 1,
"column": 11
}
}
},
{
"type": {
"label": ":",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"start": 11,
"end": 12,
"loc": {
"start": {
"line": 1,
"column": 11
},
"end": {
"line": 1,
"column": 12
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "T",
"start": 13,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 13
},
"end": {
"line": 1,
"column": 14
}
}
},
{
"type": {
"label": ")",
"beforeExpr": false,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"start": 14,
"end": 15,
"loc": {
"start": {
"line": 1,
"column": 14
},
"end": {
"line": 1,
"column": 15
}
}
},
{
"type": {
"label": ":",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"start": 15,
"end": 16,
"loc": {
"start": {
"line": 1,
"column": 15
},
"end": {
"line": 1,
"column": 16
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "T",
"start": 17,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 18
}
}
},
{
"type": {
"label": "=>",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"start": 19,
"end": 21,
"loc": {
"start": {
"line": 1,
"column": 19
},
"end": {
"line": 1,
"column": 21
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "a",
"start": 22,
"end": 23,
"loc": {
"start": {
"line": 1,
"column": 22
},
"end": {
"line": 1,
"column": 23
}
}
},
{
"type": {
"label": ";",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"start": 23,
"end": 24,
"loc": {
"start": {
"line": 1,
"column": 23
},
"end": {
"line": 1,
"column": 24
}
}
},
{
"type": {
"label": "eof",
"beforeExpr": false,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"start": 24,
"end": 24,
"loc": {
"start": {
"line": 1,
"column": 24
},
"end": {
"line": 1,
"column": 24
}
}
}
]
}

231
packages/babel-parser/test/fixtures/typescript/arrow-function/async-generic/output.json vendored
View File

@ -1,231 +0,0 @@
{
"type": "File",
"start": 0,
"end": 24,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 24
}
},
"program": {
"type": "Program",
"start": 0,
"end": 24,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 24
}
},
"sourceType": "module",
"interpreter": null,
"body": [
{
"type": "ExpressionStatement",
"start": 0,
"end": 24,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 24
}
},
"expression": {
"type": "ArrowFunctionExpression",
"start": 0,
"end": 23,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 23
}
},
"typeParameters": {
"type": "TSTypeParameterDeclaration",
"start": 6,
"end": 9,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 9
}
},
"params": [
{
"type": "TSTypeParameter",
"start": 7,
"end": 8,
"loc": {
"start": {
"line": 1,
"column": 7
},
"end": {
"line": 1,
"column": 8
}
},
"name": "T"
}
]
},
"params": [
{
"type": "Identifier",
"start": 10,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 10
},
"end": {
"line": 1,
"column": 14
},
"identifierName": "a"
},
"name": "a",
"typeAnnotation": {
"type": "TSTypeAnnotation",
"start": 11,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 11
},
"end": {
"line": 1,
"column": 14
}
},
"typeAnnotation": {
"type": "TSTypeReference",
"start": 13,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 13
},
"end": {
"line": 1,
"column": 14
}
},
"typeName": {
"type": "Identifier",
"start": 13,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 13
},
"end": {
"line": 1,
"column": 14
},
"identifierName": "T"
},
"name": "T"
}
}
}
}
],
"returnType": {
"type": "TSTypeAnnotation",
"start": 15,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 15
},
"end": {
"line": 1,
"column": 18
}
},
"typeAnnotation": {
"type": "TSTypeReference",
"start": 17,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 18
}
},
"typeName": {
"type": "Identifier",
"start": 17,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 18
},
"identifierName": "T"
},
"name": "T"
}
}
},
"id": null,
"generator": false,
"async": true,
"body": {
"type": "Identifier",
"start": 22,
"end": 23,
"loc": {
"start": {
"line": 1,
"column": 22
},
"end": {
"line": 1,
"column": 23
},
"identifierName": "a"
},
"name": "a"
}
}
}
],
"directives": []
}
}

0
packages/babel-parser/test/fixtures/typescript/type-alias/generic-complex/input.ts → packages/babel-parser/test/fixtures/typescript/type-alias/generic-complex-tokens-true/input.ts vendored
View File

5
packages/babel-parser/test/fixtures/typescript/type-alias/generic-complex-tokens-true/options.json vendored Normal file
View File

@ -0,0 +1,5 @@
{
"sourceType": "module",
"plugins": ["typescript"],
"tokens": true
}

804
packages/babel-parser/test/fixtures/typescript/type-alias/generic-complex-tokens-true/output.json vendored Normal file
View File

@ -0,0 +1,804 @@
{
"type": "File",
"start": 0,
"end": 52,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 52
}
},
"program": {
"type": "Program",
"start": 0,
"end": 52,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 52
}
},
"sourceType": "module",
"interpreter": null,
"body": [
{
"type": "TSTypeAliasDeclaration",
"start": 0,
"end": 52,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 52
}
},
"id": {
"type": "Identifier",
"start": 5,
"end": 6,
"loc": {
"start": {
"line": 1,
"column": 5
},
"end": {
"line": 1,
"column": 6
},
"identifierName": "T"
},
"name": "T"
},
"typeParameters": {
"type": "TSTypeParameterDeclaration",
"start": 6,
"end": 40,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 40
}
},
"params": [
{
"type": "TSTypeParameter",
"start": 7,
"end": 39,
"loc": {
"start": {
"line": 1,
"column": 7
},
"end": {
"line": 1,
"column": 39
}
},
"name": "U",
"constraint": {
"type": "TSObjectKeyword",
"start": 17,
"end": 23,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 23
}
}
},
"default": {
"type": "TSTypeLiteral",
"start": 26,
"end": 39,
"loc": {
"start": {
"line": 1,
"column": 26
},
"end": {
"line": 1,
"column": 39
}
},
"members": [
{
"type": "TSPropertySignature",
"start": 28,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 28
},
"end": {
"line": 1,
"column": 37
}
},
"key": {
"type": "Identifier",
"start": 28,
"end": 29,
"loc": {
"start": {
"line": 1,
"column": 28
},
"end": {
"line": 1,
"column": 29
},
"identifierName": "x"
},
"name": "x"
},
"computed": false,
"typeAnnotation": {
"type": "TSTypeAnnotation",
"start": 29,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 29
},
"end": {
"line": 1,
"column": 37
}
},
"typeAnnotation": {
"type": "TSNumberKeyword",
"start": 31,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 31
},
"end": {
"line": 1,
"column": 37
}
}
}
}
}
]
}
}
]
},
"typeAnnotation": {
"type": "TSTypeReference",
"start": 43,
"end": 51,
"loc": {
"start": {
"line": 1,
"column": 43
},
"end": {
"line": 1,
"column": 51
}
},
"typeName": {
"type": "Identifier",
"start": 43,
"end": 48,
"loc": {
"start": {
"line": 1,
"column": 43
},
"end": {
"line": 1,
"column": 48
},
"identifierName": "Array"
},
"name": "Array"
},
"typeParameters": {
"type": "TSTypeParameterInstantiation",
"start": 48,
"end": 51,
"loc": {
"start": {
"line": 1,
"column": 48
},
"end": {
"line": 1,
"column": 51
}
},
"params": [
{
"type": "TSTypeReference",
"start": 49,
"end": 50,
"loc": {
"start": {
"line": 1,
"column": 49
},
"end": {
"line": 1,
"column": 50
}
},
"typeName": {
"type": "Identifier",
"start": 49,
"end": 50,
"loc": {
"start": {
"line": 1,
"column": 49
},
"end": {
"line": 1,
"column": 50
},
"identifierName": "U"
},
"name": "U"
}
}
]
}
}
}
],
"directives": []
},
"tokens": [
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "type",
"start": 0,
"end": 4,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 4
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "T",
"start": 5,
"end": 6,
"loc": {
"start": {
"line": 1,
"column": 5
},
"end": {
"line": 1,
"column": 6
}
}
},
{
"type": {
"label": "</>/<=/>=",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": 7,
"updateContext": null
},
"value": "<",
"start": 6,
"end": 7,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 7
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "U",
"start": 7,
"end": 8,
"loc": {
"start": {
"line": 1,
"column": 7
},
"end": {
"line": 1,
"column": 8
}
}
},
{
"type": {
"label": "extends",
"keyword": "extends",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"value": "extends",
"start": 9,
"end": 16,
"loc": {
"start": {
"line": 1,
"column": 9
},
"end": {
"line": 1,
"column": 16
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "object",
"start": 17,
"end": 23,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 23
}
}
},
{
"type": {
"label": "=",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": true,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"value": "=",
"start": 24,
"end": 25,
"loc": {
"start": {
"line": 1,
"column": 24
},
"end": {
"line": 1,
"column": 25
}
}
},
{
"type": {
"label": "{",
"beforeExpr": true,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"start": 26,
"end": 27,
"loc": {
"start": {
"line": 1,
"column": 26
},
"end": {
"line": 1,
"column": 27
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "x",
"start": 28,
"end": 29,
"loc": {
"start": {
"line": 1,
"column": 28
},
"end": {
"line": 1,
"column": 29
}
}
},
{
"type": {
"label": ":",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"start": 29,
"end": 30,
"loc": {
"start": {
"line": 1,
"column": 29
},
"end": {
"line": 1,
"column": 30
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "number",
"start": 31,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 31
},
"end": {
"line": 1,
"column": 37
}
}
},
{
"type": {
"label": "}",
"beforeExpr": false,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"start": 38,
"end": 39,
"loc": {
"start": {
"line": 1,
"column": 38
},
"end": {
"line": 1,
"column": 39
}
}
},
{
"type": {
"label": "</>/<=/>=",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": 7,
"updateContext": null
},
"value": ">",
"start": 39,
"end": 40,
"loc": {
"start": {
"line": 1,
"column": 39
},
"end": {
"line": 1,
"column": 40
}
}
},
{
"type": {
"label": "=",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": true,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"value": "=",
"start": 41,
"end": 42,
"loc": {
"start": {
"line": 1,
"column": 41
},
"end": {
"line": 1,
"column": 42
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "Array",
"start": 43,
"end": 48,
"loc": {
"start": {
"line": 1,
"column": 43
},
"end": {
"line": 1,
"column": 48
}
}
},
{
"type": {
"label": "</>/<=/>=",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": 7,
"updateContext": null
},
"value": "<",
"start": 48,
"end": 49,
"loc": {
"start": {
"line": 1,
"column": 48
},
"end": {
"line": 1,
"column": 49
}
}
},
{
"type": {
"label": "name",
"beforeExpr": false,
"startsExpr": true,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null
},
"value": "U",
"start": 49,
"end": 50,
"loc": {
"start": {
"line": 1,
"column": 49
},
"end": {
"line": 1,
"column": 50
}
}
},
{
"type": {
"label": "</>/<=/>=",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": 7,
"updateContext": null
},
"value": ">",
"start": 50,
"end": 51,
"loc": {
"start": {
"line": 1,
"column": 50
},
"end": {
"line": 1,
"column": 51
}
}
},
{
"type": {
"label": ";",
"beforeExpr": true,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"start": 51,
"end": 52,
"loc": {
"start": {
"line": 1,
"column": 51
},
"end": {
"line": 1,
"column": 52
}
}
},
{
"type": {
"label": "eof",
"beforeExpr": false,
"startsExpr": false,
"rightAssociative": false,
"isLoop": false,
"isAssign": false,
"prefix": false,
"postfix": false,
"binop": null,
"updateContext": null
},
"start": 52,
"end": 52,
"loc": {
"start": {
"line": 1,
"column": 52
},
"end": {
"line": 1,
"column": 52
}
}
}
]
}

276
packages/babel-parser/test/fixtures/typescript/type-alias/generic-complex/output.json vendored
View File

@ -1,276 +0,0 @@
{
"type": "File",
"start": 0,
"end": 52,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 52
}
},
"program": {
"type": "Program",
"start": 0,
"end": 52,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 52
}
},
"sourceType": "module",
"interpreter": null,
"body": [
{
"type": "TSTypeAliasDeclaration",
"start": 0,
"end": 52,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 52
}
},
"id": {
"type": "Identifier",
"start": 5,
"end": 6,
"loc": {
"start": {
"line": 1,
"column": 5
},
"end": {
"line": 1,
"column": 6
},
"identifierName": "T"
},
"name": "T"
},
"typeParameters": {
"type": "TSTypeParameterDeclaration",
"start": 6,
"end": 40,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 40
}
},
"params": [
{
"type": "TSTypeParameter",
"start": 7,
"end": 39,
"loc": {
"start": {
"line": 1,
"column": 7
},
"end": {
"line": 1,
"column": 39
}
},
"name": "U",
"constraint": {
"type": "TSObjectKeyword",
"start": 17,
"end": 23,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 23
}
}
},
"default": {
"type": "TSTypeLiteral",
"start": 26,
"end": 39,
"loc": {
"start": {
"line": 1,
"column": 26
},
"end": {
"line": 1,
"column": 39
}
},
"members": [
{
"type": "TSPropertySignature",
"start": 28,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 28
},
"end": {
"line": 1,
"column": 37
}
},
"key": {
"type": "Identifier",
"start": 28,
"end": 29,
"loc": {
"start": {
"line": 1,
"column": 28
},
"end": {
"line": 1,
"column": 29
},
"identifierName": "x"
},
"name": "x"
},
"computed": false,
"typeAnnotation": {
"type": "TSTypeAnnotation",
"start": 29,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 29
},
"end": {
"line": 1,
"column": 37
}
},
"typeAnnotation": {
"type": "TSNumberKeyword",
"start": 31,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 31
},
"end": {
"line": 1,
"column": 37
}
}
}
}
}
]
}
}
]
},
"typeAnnotation": {
"type": "TSTypeReference",
"start": 43,
"end": 51,
"loc": {
"start": {
"line": 1,
"column": 43
},
"end": {
"line": 1,
"column": 51
}
},
"typeName": {
"type": "Identifier",
"start": 43,
"end": 48,
"loc": {
"start": {
"line": 1,
"column": 43
},
"end": {
"line": 1,
"column": 48
},
"identifierName": "Array"
},
"name": "Array"
},
"typeParameters": {
"type": "TSTypeParameterInstantiation",
"start": 48,
"end": 51,
"loc": {
"start": {
"line": 1,
"column": 48
},
"end": {
"line": 1,
"column": 51
}
},
"params": [
{
"type": "TSTypeReference",
"start": 49,
"end": 50,
"loc": {
"start": {
"line": 1,
"column": 49
},
"end": {
"line": 1,
"column": 50
}
},
"typeName": {
"type": "Identifier",
"start": 49,
"end": 50,
"loc": {
"start": {
"line": 1,
"column": 49
},
"end": {
"line": 1,
"column": 50
},
"identifierName": "U"
},
"name": "U"
}
}
]
}
}
}
],
"directives": []
}
}