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Add plugin for import.meta proposal (#544)

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* Add plugin for import.meta proposal

Fixes https://github.com/babel/babylon/issues/539

* Tests for assignment/mutation of import.meta

* Use correct identifier in failure message

* Simpler & more consistent script errors for import.meta
This commit is contained in:
Jan Olaf Krems
2017-05-30 16:28:51 -07:00
committed by Henry Zhu
parent 2f5d146d54
commit d4e842d4eb
15 changed files with 1164 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
test/fixtures/experimental/import-meta/error-in-script/actual.js vendored Normal file
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const x = import.meta;

5
test/fixtures/experimental/import-meta/error-in-script/options.json vendored Normal file
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@@ -0,0 +1,5 @@
{
"throws": "import.meta may appear only with 'sourceType: module' (1:10)",
"plugins": ["dynamicImport", "importMeta"],
"sourceType": "script"
}

1
test/fixtures/experimental/import-meta/no-other-prop-names/actual.js vendored Normal file
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@@ -0,0 +1 @@
import.notMeta;

5
test/fixtures/experimental/import-meta/no-other-prop-names/options.json vendored Normal file
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@@ -0,0 +1,5 @@
{
"throws": "The only valid meta property for import is import.meta (1:7)",
"sourceType": "module",
"plugins": ["dynamicImport", "importMeta"]
}

1
test/fixtures/experimental/import-meta/not-assignable/actual.js vendored Normal file
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@@ -0,0 +1 @@
import.meta = true;

5
test/fixtures/experimental/import-meta/not-assignable/options.json vendored Normal file
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@@ -0,0 +1,5 @@
{
"throws": "Invalid left-hand side in assignment expression (1:0)",
"sourceType": "module",
"plugins": ["dynamicImport", "importMeta"]
}

5
test/fixtures/experimental/import-meta/valid-in-module/actual.js vendored Normal file
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@@ -0,0 +1,5 @@
const x = import.meta;
const url = import.meta.url;
import.meta;
import.meta.url;
import.meta.couldBeMutable = true;

555
test/fixtures/experimental/import-meta/valid-in-module/expected.json vendored Normal file
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@@ -0,0 +1,555 @@
{
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"identifierName": "meta"
},
"name": "meta"
}
},
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"loc": {
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},
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"column": 26
},
"identifierName": "couldBeMutable"
},
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}
},
"value": true
}
}
}
],
"directives": []
}
}

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

5
test/fixtures/experimental/import-meta/without-dynamic-import/actual.js vendored Normal file
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@@ -0,0 +1,5 @@
const x = import.meta;
const url = import.meta.url;
import.meta;
import.meta.url;
import.meta.couldBeMutable = true;

555
test/fixtures/experimental/import-meta/without-dynamic-import/expected.json vendored Normal file
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@@ -0,0 +1,555 @@
{
"type": "File",
"start": 0,
"end": 116,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
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}
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"loc": {
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},
"end": {
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}
},
"sourceType": "module",
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{
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}
},
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"end": 108,
"loc": {
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}
},
"value": true
}
}
}
],
"directives": []
}
}

4
test/fixtures/experimental/import-meta/without-dynamic-import/options.json vendored Normal file
View File

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