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Parse import-assertions (#12139)

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Co-authored-by: Huáng Jùnliàng <jlhwung@gmail.com>
Co-authored-by: Nicolò Ribaudo <nicolo.ribaudo@gmail.com>
This commit is contained in:
Sven Sauleau
2020-10-14 20:18:16 +01:00
committed by GitHub
parent 59d97d9bca
commit af8e0facc1
71 changed files with 1199 additions and 112 deletions
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15
packages/babel-parser/src/parser/expression.js
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@@ -829,13 +829,18 @@ export default class ExpressionParser extends LValParser {
): N.Expression {
if (node.callee.type === "Import") {
if (node.arguments.length === 2) {
this.expectPlugin("moduleAttributes");
// todo(Babel 8): remove the if condition,
// moduleAttributes is renamed to importAssertions
if (!this.hasPlugin("moduleAttributes")) {
this.expectPlugin("importAssertions");
}
}
if (node.arguments.length === 0 || node.arguments.length > 2) {
this.raise(
node.start,
Errors.ImportCallArity,
this.hasPlugin("moduleAttributes")
this.hasPlugin("importAssertions") ||
this.hasPlugin("moduleAttributes")
? "one or two arguments"
: "one argument",
);
@@ -872,7 +877,11 @@ export default class ExpressionParser extends LValParser {
} else {
this.expect(tt.comma);
if (this.match(close)) {
if (dynamicImport && !this.hasPlugin("moduleAttributes")) {
if (
dynamicImport &&
!this.hasPlugin("importAssertions") &&
!this.hasPlugin("moduleAttributes")
) {
this.raise(
this.state.lastTokStart,
Errors.ImportCallArgumentTrailingComma,