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Enable import.meta by default in @babel/parser (#11406)

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This commit is contained in:
Kiko Estrada 2020-05-24 13:57:34 -07:00 committed by GitHub
parent 75a6530abe
commit 5dd7f438c9
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GPG Key ID: 4AEE18F83AFDEB23
26 changed files with 10 additions and 207 deletions
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4
packages/babel-parser/src/parser/expression.js
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@ -1227,8 +1227,6 @@ export default class ExpressionParser extends LValParser {
this.expect(tt.dot);
if (this.isContextual("meta")) {
this.expectPlugin("importMeta");
if (!this.inModule) {
this.raiseWithData(
id.start,
@ -1237,8 +1235,6 @@ export default class ExpressionParser extends LValParser {
);
}
this.sawUnambiguousESM = true;
} else if (!this.hasPlugin("importMeta")) {
this.raise(id.start, Errors.ImportCallArityLtOne);
}
return this.parseMetaProperty(node, id, "meta");

1
packages/babel-parser/src/parser/location.js
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@ -68,7 +68,6 @@ export const Errors = Object.freeze({
ImportCallArgumentTrailingComma:
"Trailing comma is disallowed inside import(...) arguments",
ImportCallArity: "import() requires exactly one argument",
ImportCallArityLtOne: "Dynamic imports require a parameter: import('a.js')",
ImportCallNotNewExpression: "Cannot use new with import(...)",
ImportCallSpreadArgument: "... is not allowed in import()",
ImportMetaOutsideModule: `import.meta may appear only with 'sourceType: "module"'`,

2
packages/babel-parser/test/fixtures/core/sourcetype-unambiguous/import-meta/output.json vendored
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@ -49,4 +49,4 @@
],
"directives": []
}
}
}

1
packages/babel-parser/test/fixtures/es2020/dynamic-import/direct-calls-only/output.json vendored
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@ -2,7 +2,6 @@
"type": "File",
"start":0,"end":49,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
"errors": [
"SyntaxError: Dynamic imports require a parameter: import('a.js') (2:9)",
"SyntaxError: The only valid meta property for import is import.meta (2:16)"
],
"program": {

0
packages/babel-parser/test/fixtures/experimental/_no-plugin/import-meta/input.js → packages/babel-parser/test/fixtures/es2020/import-meta/error-in-script/input.js vendored
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1
packages/babel-parser/test/fixtures/experimental/import-meta/error-in-script/options.json → packages/babel-parser/test/fixtures/es2020/import-meta/error-in-script/options.json vendored
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@ -1,4 +1,3 @@
{
"plugins": ["importMeta"],
"sourceType": "script"
}

0
packages/babel-parser/test/fixtures/experimental/import-meta/error-in-script/output.json → packages/babel-parser/test/fixtures/es2020/import-meta/error-in-script/output.json vendored
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0
packages/babel-parser/test/fixtures/experimental/import-meta/no-other-prop-names/input.js → packages/babel-parser/test/fixtures/es2020/import-meta/no-other-prop-names/input.js vendored
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3
packages/babel-parser/test/fixtures/es2020/import-meta/no-other-prop-names/options.json vendored Normal file
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@ -0,0 +1,3 @@
{
"sourceType": "module"
}

0
packages/babel-parser/test/fixtures/experimental/import-meta/no-other-prop-names/output.json → packages/babel-parser/test/fixtures/es2020/import-meta/no-other-prop-names/output.json vendored
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0
packages/babel-parser/test/fixtures/experimental/import-meta/not-assignable/input.js → packages/babel-parser/test/fixtures/es2020/import-meta/not-assignable/input.js vendored
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3
packages/babel-parser/test/fixtures/es2020/import-meta/not-assignable/options.json vendored Normal file
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@ -0,0 +1,3 @@
{
"sourceType": "module"
}

0
packages/babel-parser/test/fixtures/experimental/import-meta/not-assignable/output.json → packages/babel-parser/test/fixtures/es2020/import-meta/not-assignable/output.json vendored
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0
packages/babel-parser/test/fixtures/experimental/import-meta/valid-in-module/input.js → packages/babel-parser/test/fixtures/es2020/import-meta/valid-in-module/input.js vendored
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3
packages/babel-parser/test/fixtures/es2020/import-meta/valid-in-module/options.json vendored Normal file
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@ -0,0 +1,3 @@
{
"sourceType": "module"
}

0
packages/babel-parser/test/fixtures/experimental/import-meta/valid-in-module/output.json → packages/babel-parser/test/fixtures/es2020/import-meta/valid-in-module/output.json vendored
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5
packages/babel-parser/test/fixtures/experimental/_no-plugin/import-meta/options.json vendored
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@ -1,5 +0,0 @@
{
"throws": "This experimental syntax requires enabling the parser plugin: 'importMeta' (1:17)",
"sourceType": "module",
"plugins": []
}

1
packages/babel-parser/test/fixtures/experimental/import-meta/error-in-script/input.js vendored
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@ -1 +0,0 @@
const x = import.meta;

4
packages/babel-parser/test/fixtures/experimental/import-meta/no-other-prop-names/options.json vendored
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@ -1,4 +0,0 @@
{
"sourceType": "module",
"plugins": ["importMeta"]
}

4
packages/babel-parser/test/fixtures/experimental/import-meta/not-assignable/options.json vendored
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@ -1,4 +0,0 @@
{
"sourceType": "module",
"plugins": ["importMeta"]
}

4
packages/babel-parser/test/fixtures/experimental/import-meta/valid-in-module/options.json vendored
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@ -1,4 +0,0 @@
{
"sourceType": "module",
"plugins": ["importMeta"]
}

5
packages/babel-parser/test/fixtures/experimental/import-meta/without-dynamic-import/input.js vendored
View File

@ -1,5 +0,0 @@
const x = import.meta;
const url = import.meta.url;
import.meta;
import.meta.url;
import.meta.couldBeMutable = true;

4
packages/babel-parser/test/fixtures/experimental/import-meta/without-dynamic-import/options.json vendored
View File

@ -1,4 +0,0 @@
{
"sourceType": "module",
"plugins": ["importMeta"]
}

167
packages/babel-parser/test/fixtures/experimental/import-meta/without-dynamic-import/output.json vendored
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@ -1,167 +0,0 @@
{
"type": "File",
"start":0,"end":116,"loc":{"start":{"line":1,"column":0},"end":{"line":5,"column":34}},
"program": {
"type": "Program",
"start":0,"end":116,"loc":{"start":{"line":1,"column":0},"end":{"line":5,"column":34}},
"sourceType": "module",
"interpreter": null,
"body": [
{
"type": "VariableDeclaration",
"start":0,"end":22,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":22}},
"declarations": [
{
"type": "VariableDeclarator",
"start":6,"end":21,"loc":{"start":{"line":1,"column":6},"end":{"line":1,"column":21}},
"id": {
"type": "Identifier",
"start":6,"end":7,"loc":{"start":{"line":1,"column":6},"end":{"line":1,"column":7},"identifierName":"x"},
"name": "x"
},
"init": {
"type": "MetaProperty",
"start":10,"end":21,"loc":{"start":{"line":1,"column":10},"end":{"line":1,"column":21}},
"meta": {
"type": "Identifier",
"start":10,"end":16,"loc":{"start":{"line":1,"column":10},"end":{"line":1,"column":16},"identifierName":"import"},
"name": "import"
},
"property": {
"type": "Identifier",
"start":17,"end":21,"loc":{"start":{"line":1,"column":17},"end":{"line":1,"column":21},"identifierName":"meta"},
"name": "meta"
}
}
}
],
"kind": "const"
},
{
"type": "VariableDeclaration",
"start":23,"end":51,"loc":{"start":{"line":2,"column":0},"end":{"line":2,"column":28}},
"declarations": [
{
"type": "VariableDeclarator",
"start":29,"end":50,"loc":{"start":{"line":2,"column":6},"end":{"line":2,"column":27}},
"id": {
"type": "Identifier",
"start":29,"end":32,"loc":{"start":{"line":2,"column":6},"end":{"line":2,"column":9},"identifierName":"url"},
"name": "url"
},
"init": {
"type": "MemberExpression",
"start":35,"end":50,"loc":{"start":{"line":2,"column":12},"end":{"line":2,"column":27}},
"object": {
"type": "MetaProperty",
"start":35,"end":46,"loc":{"start":{"line":2,"column":12},"end":{"line":2,"column":23}},
"meta": {
"type": "Identifier",
"start":35,"end":41,"loc":{"start":{"line":2,"column":12},"end":{"line":2,"column":18},"identifierName":"import"},
"name": "import"
},
"property": {
"type": "Identifier",
"start":42,"end":46,"loc":{"start":{"line":2,"column":19},"end":{"line":2,"column":23},"identifierName":"meta"},
"name": "meta"
}
},
"property": {
"type": "Identifier",
"start":47,"end":50,"loc":{"start":{"line":2,"column":24},"end":{"line":2,"column":27},"identifierName":"url"},
"name": "url"
},
"computed": false
}
}
],
"kind": "const"
},
{
"type": "ExpressionStatement",
"start":52,"end":64,"loc":{"start":{"line":3,"column":0},"end":{"line":3,"column":12}},
"expression": {
"type": "MetaProperty",
"start":52,"end":63,"loc":{"start":{"line":3,"column":0},"end":{"line":3,"column":11}},
"meta": {
"type": "Identifier",
"start":52,"end":58,"loc":{"start":{"line":3,"column":0},"end":{"line":3,"column":6},"identifierName":"import"},
"name": "import"
},
"property": {
"type": "Identifier",
"start":59,"end":63,"loc":{"start":{"line":3,"column":7},"end":{"line":3,"column":11},"identifierName":"meta"},
"name": "meta"
}
}
},
{
"type": "ExpressionStatement",
"start":65,"end":81,"loc":{"start":{"line":4,"column":0},"end":{"line":4,"column":16}},
"expression": {
"type": "MemberExpression",
"start":65,"end":80,"loc":{"start":{"line":4,"column":0},"end":{"line":4,"column":15}},
"object": {
"type": "MetaProperty",
"start":65,"end":76,"loc":{"start":{"line":4,"column":0},"end":{"line":4,"column":11}},
"meta": {
"type": "Identifier",
"start":65,"end":71,"loc":{"start":{"line":4,"column":0},"end":{"line":4,"column":6},"identifierName":"import"},
"name": "import"
},
"property": {
"type": "Identifier",
"start":72,"end":76,"loc":{"start":{"line":4,"column":7},"end":{"line":4,"column":11},"identifierName":"meta"},
"name": "meta"
}
},
"property": {
"type": "Identifier",
"start":77,"end":80,"loc":{"start":{"line":4,"column":12},"end":{"line":4,"column":15},"identifierName":"url"},
"name": "url"
},
"computed": false
}
},
{
"type": "ExpressionStatement",
"start":82,"end":116,"loc":{"start":{"line":5,"column":0},"end":{"line":5,"column":34}},
"expression": {
"type": "AssignmentExpression",
"start":82,"end":115,"loc":{"start":{"line":5,"column":0},"end":{"line":5,"column":33}},
"operator": "=",
"left": {
"type": "MemberExpression",
"start":82,"end":108,"loc":{"start":{"line":5,"column":0},"end":{"line":5,"column":26}},
"object": {
"type": "MetaProperty",
"start":82,"end":93,"loc":{"start":{"line":5,"column":0},"end":{"line":5,"column":11}},
"meta": {
"type": "Identifier",
"start":82,"end":88,"loc":{"start":{"line":5,"column":0},"end":{"line":5,"column":6},"identifierName":"import"},
"name": "import"
},
"property": {
"type": "Identifier",
"start":89,"end":93,"loc":{"start":{"line":5,"column":7},"end":{"line":5,"column":11},"identifierName":"meta"},
"name": "meta"
}
},
"property": {
"type": "Identifier",
"start":94,"end":108,"loc":{"start":{"line":5,"column":12},"end":{"line":5,"column":26},"identifierName":"couldBeMutable"},
"name": "couldBeMutable"
},
"computed": false
},
"right": {
"type": "BooleanLiteral",
"start":111,"end":115,"loc":{"start":{"line":5,"column":29},"end":{"line":5,"column":33}},
"value": true
}
}
}
],
"directives": []
}
}

1
packages/babel-parser/test/fixtures/experimental/import-meta/without-plugin/input.js vendored
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@ -1 +0,0 @@
import.meta;

4
packages/babel-parser/test/fixtures/experimental/import-meta/without-plugin/options.json vendored
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@ -1,4 +0,0 @@
{
"throws": "This experimental syntax requires enabling the parser plugin: 'importMeta' (1:7)",
"plugins": []
}