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Flow enums parsing (#10344)

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* Flow enums parsing

* Parse exporting enums

* Enums parsing remove lookahead, other improvements

* Enums: add EnumBody and EnumMember aliases, change boolean members to use BooleaLiteral value

* Fix enum member init flow type, now that boolean members have a BooleanLiteral value

* Flow enums: use contextual utils, change members length checks to use logic operators, remove reserved word logic modification

* Flow enums: remove unnecessary code in generator, fix error message
This commit is contained in:
George Zahariev
2019-10-29 14:55:12 -07:00
committed by Nicolò Ribaudo
parent 4b3a19ea9f
commit ec3345bb57
92 changed files with 3213 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
packages/babel-parser/test/fixtures/flow/enum-declaration/boolean-explicit/input.js vendored Normal file
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@@ -0,0 +1,4 @@
enum E of boolean {
A = true,
B = false,
}

181
packages/babel-parser/test/fixtures/flow/enum-declaration/boolean-explicit/output.json vendored Normal file
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@@ -0,0 +1,181 @@
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},
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},
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"type": "EnumBooleanBody",
"start": 22,
"end": 44,
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"line": 2,
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},
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{
"type": "EnumBooleanMember",
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"start": 22,
"end": 23,
"loc": {
"start": {
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},
"end": {
"line": 2,
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},
"identifierName": "A"
},
"name": "A"
},
"init": {
"type": "BooleanLiteral",
"start": 26,
"end": 30,
"loc": {
"start": {
"line": 2,
"column": 6
},
"end": {
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}
},
"value": true
}
},
{
"type": "EnumBooleanMember",
"start": 34,
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"start": 34,
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"loc": {
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"line": 3,
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},
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"line": 3,
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},
"identifierName": "B"
},
"name": "B"
},
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"type": "BooleanLiteral",
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},
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}
},
"value": false
}
}
]
}
}
],
"directives": []
}
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/boolean-implicit/input.js vendored Normal file
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@@ -0,0 +1,4 @@
enum E {
A = true,
B = false,
}

181
packages/babel-parser/test/fixtures/flow/enum-declaration/boolean-implicit/output.json vendored Normal file
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@@ -0,0 +1,181 @@
{
"type": "File",
"start": 0,
"end": 35,
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"line": 1,
"column": 0
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{
"type": "EnumDeclaration",
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"end": 35,
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},
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},
"identifierName": "E"
},
"name": "E"
},
"body": {
"type": "EnumBooleanBody",
"start": 11,
"end": 33,
"loc": {
"start": {
"line": 2,
"column": 2
},
"end": {
"line": 3,
"column": 12
}
},
"explicitType": false,
"members": [
{
"type": "EnumBooleanMember",
"start": 11,
"end": 19,
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"line": 2,
"column": 2
},
"end": {
"line": 2,
"column": 10
}
},
"id": {
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"start": 11,
"end": 12,
"loc": {
"start": {
"line": 2,
"column": 2
},
"end": {
"line": 2,
"column": 3
},
"identifierName": "A"
},
"name": "A"
},
"init": {
"type": "BooleanLiteral",
"start": 15,
"end": 19,
"loc": {
"start": {
"line": 2,
"column": 6
},
"end": {
"line": 2,
"column": 10
}
},
"value": true
}
},
{
"type": "EnumBooleanMember",
"start": 23,
"end": 32,
"loc": {
"start": {
"line": 3,
"column": 2
},
"end": {
"line": 3,
"column": 11
}
},
"id": {
"type": "Identifier",
"start": 23,
"end": 24,
"loc": {
"start": {
"line": 3,
"column": 2
},
"end": {
"line": 3,
"column": 3
},
"identifierName": "B"
},
"name": "B"
},
"init": {
"type": "BooleanLiteral",
"start": 27,
"end": 32,
"loc": {
"start": {
"line": 3,
"column": 6
},
"end": {
"line": 3,
"column": 11
}
},
"value": false
}
}
]
}
}
],
"directives": []
}
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/boolean-member-not-initialized-explicit/input.js vendored Normal file
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@@ -0,0 +1,3 @@
enum E of boolean {
A,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/boolean-member-not-initialized-explicit/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Boolean enum members need to be initialized. Use either `A = true,` or `A = false,` in enum `E`. (2:2)"
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/boolean-member-not-initialized-implicit/input.js vendored Normal file
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@@ -0,0 +1,4 @@
enum E {
A,
B = true,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/boolean-member-not-initialized-implicit/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Boolean enum members need to be initialized. Use either `A = true,` or `A = false,` in enum `E`. (2:2)"
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/duplicate-member-name/input.js vendored Normal file
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@@ -0,0 +1,4 @@
enum E {
A,
A,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/duplicate-member-name/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Enum member names need to be unique, but the name `A` has already been used before in enum `E`. (3:2)"
}

1
packages/babel-parser/test/fixtures/flow/enum-declaration/empty/input.js vendored Normal file
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@@ -0,0 +1 @@
enum E { }

84
packages/babel-parser/test/fixtures/flow/enum-declaration/empty/output.json vendored Normal file
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@@ -0,0 +1,84 @@
{
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"start": 0,
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{
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},
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},
"identifierName": "E"
},
"name": "E"
},
"body": {
"type": "EnumStringBody",
"start": 9,
"end": 8,
"loc": {
"start": {
"line": 1,
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},
"end": {
"line": 1,
"column": 8
}
},
"explicitType": false,
"members": []
}
}
],
"directives": []
}
}

1
packages/babel-parser/test/fixtures/flow/enum-declaration/end-of-file/input.js vendored Normal file
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@@ -0,0 +1 @@
enum

4
packages/babel-parser/test/fixtures/flow/enum-declaration/end-of-file/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Unexpected token (1:4)"
}

2
packages/babel-parser/test/fixtures/flow/enum-declaration/enum-name/input.js vendored Normal file
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@@ -0,0 +1,2 @@
enum type {
}

84
packages/babel-parser/test/fixtures/flow/enum-declaration/enum-name/output.json vendored Normal file
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@@ -0,0 +1,84 @@
{
"type": "File",
"start": 0,
"end": 13,
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}
},
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{
"type": "EnumDeclaration",
"start": 0,
"end": 13,
"loc": {
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},
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}
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"start": 5,
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},
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},
"identifierName": "type"
},
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},
"body": {
"type": "EnumStringBody",
"start": 12,
"end": 11,
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"start": {
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},
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}
},
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"members": []
}
}
],
"directives": []
}
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/export/input.js vendored Normal file
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@@ -0,0 +1,3 @@
export enum A {}
export default enum B {}

11
packages/babel-parser/test/fixtures/flow/enum-declaration/export/options.json vendored Normal file
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@@ -0,0 +1,11 @@
{
"plugins": [
[
"flow",
{
"enums": true
}
]
],
"sourceType": "module"
}

166
packages/babel-parser/test/fixtures/flow/enum-declaration/export/output.json vendored Normal file
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@@ -0,0 +1,166 @@
{
"type": "File",
"start": 0,
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}
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},
"end": {
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},
"specifiers": [],
"source": null,
"exportKind": "value",
"declaration": {
"type": "EnumDeclaration",
"start": 7,
"end": 16,
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},
"identifierName": "A"
},
"name": "A"
},
"body": {
"type": "EnumStringBody",
"start": 15,
"end": 15,
"loc": {
"start": {
"line": 1,
"column": 15
},
"end": {
"line": 1,
"column": 15
}
},
"explicitType": false,
"members": []
}
}
},
{
"type": "ExportDefaultDeclaration",
"start": 18,
"end": 42,
"loc": {
"start": {
"line": 3,
"column": 0
},
"end": {
"line": 3,
"column": 24
}
},
"declaration": {
"type": "EnumDeclaration",
"start": 33,
"end": 42,
"loc": {
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"column": 15
},
"end": {
"line": 3,
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"start": 38,
"end": 39,
"loc": {
"start": {
"line": 3,
"column": 20
},
"end": {
"line": 3,
"column": 21
},
"identifierName": "B"
},
"name": "B"
},
"body": {
"type": "EnumStringBody",
"start": 41,
"end": 41,
"loc": {
"start": {
"line": 3,
"column": 23
},
"end": {
"line": 3,
"column": 23
}
},
"explicitType": false,
"members": []
}
}
}
],
"directives": []
}
}

5
packages/babel-parser/test/fixtures/flow/enum-declaration/inconsistent-member-values-majority-defaulted/input.js vendored Normal file
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@@ -0,0 +1,5 @@
enum E {
A,
B,
C = 3,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/inconsistent-member-values-majority-defaulted/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Enum `E` has inconsistent member initializers. Either use no initializers, or consistently use literals (either booleans, numbers, or strings) for all member initializers. (1:5)"
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/inconsistent-member-values-mixed-initializers/input.js vendored Normal file
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@@ -0,0 +1,4 @@
enum E {
A = 1,
B = true,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/inconsistent-member-values-mixed-initializers/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Enum `E` has inconsistent member initializers. Either use no initializers, or consistently use literals (either booleans, numbers, or strings) for all member initializers. (1:5)"
}

2
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-explicit-type-expression/input.js vendored Normal file
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@@ -0,0 +1,2 @@
enum E of [] {
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-explicit-type-expression/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Supplied enum type is not valid. Use one of `boolean`, `number`, `string`, or `symbol` in enum `E`. (1:10)"
}

2
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-explicit-type-identifier/input.js vendored Normal file
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@@ -0,0 +1,2 @@
enum E of xxx {
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-explicit-type-identifier/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Enum type `xxx` is not valid. Use one of `boolean`, `number`, `string`, or `symbol` in enum `E`. (1:10)"
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-boolean-explicit-string/input.js vendored Normal file
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@@ -0,0 +1,3 @@
enum E of string {
A = true,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-boolean-explicit-string/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Enum `E` has type `string`, so the initializer of `A` needs to be a string literal. (2:6)"
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-expression-explicit-boolean/input.js vendored Normal file
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@@ -0,0 +1,3 @@
enum E of boolean {
A = 1 + 2,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-expression-explicit-boolean/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Enum `E` has type `boolean`, so the initializer of `A` needs to be a boolean literal. (2:6)"
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-expression-explicit-number/input.js vendored Normal file
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@@ -0,0 +1,3 @@
enum E of number {
A = 1 + 2,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-expression-explicit-number/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Enum `E` has type `number`, so the initializer of `A` needs to be a number literal. (2:6)"
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-expression-explicit-string/input.js vendored Normal file
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@@ -0,0 +1,3 @@
enum E of string {
A = 1 + 2,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-expression-explicit-string/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Enum `E` has type `string`, so the initializer of `A` needs to be a string literal. (2:6)"
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-expression-explicit-symbol/input.js vendored Normal file
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@@ -0,0 +1,3 @@
enum E of symbol {
A = 1 + 2,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-expression-explicit-symbol/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Symbol enum members cannot be initialized. Use `A,` in enum `E`. (2:6)"
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-expression-implicit/input.js vendored Normal file
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@@ -0,0 +1,3 @@
enum E {
A = 1 + 2,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-expression-implicit/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "The enum member initializer for `A` needs to be a literal (either a boolean, number, or string) in enum `E`. (2:6)"
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-literal-explicit-symbol/input.js vendored Normal file
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@@ -0,0 +1,3 @@
enum E of symbol {
A = 1,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-literal-explicit-symbol/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Symbol enum members cannot be initialized. Use `A,` in enum `E`. (2:6)"
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-number-explicit-boolean/input.js vendored Normal file
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@@ -0,0 +1,3 @@
enum E of boolean {
A = 1,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-number-explicit-boolean/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Enum `E` has type `boolean`, so the initializer of `A` needs to be a boolean literal. (2:6)"
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-number-explicit-string/input.js vendored Normal file
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@@ -0,0 +1,3 @@
enum E of string {
A = 1,
}

4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-number-explicit-string/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": [["flow", { "enums": true }]],
"throws": "Enum `E` has type `string`, so the initializer of `A` needs to be a string literal. (2:6)"
}

3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-parenthesized/input.js vendored Normal file
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4
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3
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-initializer-string-explicit-boolean/input.js vendored Normal file
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4
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4
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View File

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4
packages/babel-parser/test/fixtures/flow/enum-declaration/invalid-member-name/options.json vendored Normal file
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189
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5
packages/babel-parser/test/fixtures/flow/enum-declaration/string-member-inconsistently-initialized-majority-defaulted/input.js vendored Normal file
View File

@@ -0,0 +1,5 @@
enum E of string {
A = "a",
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C,
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4
packages/babel-parser/test/fixtures/flow/enum-declaration/string-member-inconsistently-initialized-majority-defaulted/options.json vendored Normal file
View File

@@ -0,0 +1,4 @@
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5
packages/babel-parser/test/fixtures/flow/enum-declaration/string-member-inconsistently-initialized-majority-initialized/input.js vendored Normal file
View File

@@ -0,0 +1,5 @@
enum E of string {
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B = "b",
C = "c",
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4
packages/babel-parser/test/fixtures/flow/enum-declaration/string-member-inconsistently-initialized-majority-initialized/options.json vendored Normal file
View File

@@ -0,0 +1,4 @@
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4
packages/babel-parser/test/fixtures/flow/enum-declaration/symbol/input.js vendored Normal file
View File

@@ -0,0 +1,4 @@
enum E of symbol {
A,
B,
}

148
packages/babel-parser/test/fixtures/flow/enum-declaration/symbol/output.json vendored Normal file
View File

@@ -0,0 +1,148 @@
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