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coerce template literal expressions to strings - fixes #1065

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This commit is contained in:
Sebastian McKenzie 2015-03-23 22:04:40 +11:00
parent c12cfe3ed0
commit 0ee230d13c
1 changed files with 9 additions and 1 deletions
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10
src/babel/transformation/transformers/es6/template-literals.js
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@ -1,9 +1,17 @@
import * as t from "../../../types"; import * as t from "../../../types";
var buildBinaryExpression = function (left, right) { var buildBinaryExpression = function (left, right) {
return t.binaryExpression("+", left, right); return t.binaryExpression("+", coerce(left), coerce(right));
}; };
function coerce(node) {
if (t.isLiteral(node) && typeof node.value === "string") {
return node;
} else {
return t.callExpression(t.identifier("String"), [node]);
}
}
export function check(node) { export function check(node) {
return t.isTemplateLiteral(node) || t.isTaggedTemplateExpression(node); return t.isTemplateLiteral(node) || t.isTaggedTemplateExpression(node);
} }