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Disallow SpreadElement inside dynamic import (#529)

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* Disallow SpreadElement inside dynamic import

* tweak error message
This commit is contained in:
Brian Ng
2017-05-17 11:07:09 -05:00
committed by Henry Zhu
parent 23ff45fcfa
commit dcef4012a0
3 changed files with 13 additions and 2 deletions
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11
src/parser/expression.js
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@@ -314,8 +314,15 @@ export default class ExpressionParser extends LValParser {
const node = this.startNodeAt(startPos, startLoc);
node.callee = base;
node.arguments = this.parseCallExpressionArguments(tt.parenR, possibleAsync);
if (node.callee.type === "Import" && node.arguments.length !== 1) {
this.raise(node.start, "import() requires exactly one argument");
if (node.callee.type === "Import") {
if (node.arguments.length !== 1) {
this.raise(node.start, "import() requires exactly one argument");
}
const importArg = node.arguments[0];
if (importArg && importArg.type === "SpreadElement") {
this.raise(importArg.start, "... is not allowed in import()");
}
}
base = this.finishNode(node, "CallExpression");