module.exports = CommonJSInteropFormatter;
var CommonJSFormatter = require("./common");
var util = require("../../util");
var t = require("../../types");
var _ = require("lodash");
function CommonJSInteropFormatter(file) {
CommonJSFormatter.apply(this, arguments);
var has = false;
_.each(file.ast.program.body, function (node) {
if (t.isExportDeclaration(node) && !node.default) has = true;
});
this.has = has;
}
util.inherits(CommonJSInteropFormatter, CommonJSFormatter);
CommonJSInteropFormatter.prototype.importSpecifier = function (specifier, node, nodes) {
var variableName = t.getSpecifierName(specifier);
// import foo from "foo";
if (specifier.default) {
nodes.push(t.variableDeclaration("var", [
t.variableDeclarator(variableName,
t.callExpression(this.file.addDeclaration("interop-require"), [util.template("require", {
MODULE_NAME: node.source.raw
})])
)
]));
} else {
CommonJSFormatter.prototype.importSpecifier.apply(this, arguments);
}
};
CommonJSInteropFormatter.prototype.export = function (node, nodes) {
if (node.default && !this.has) {
var declar = node.declaration;
// module.exports = VALUE;
var assign = util.template("exports-default-module", {
VALUE: this._pushStatement(declar, nodes)
}, true);
// hoist to the top if this default is a function
nodes.push(this._hoistExport(declar, assign));
return;
}
CommonJSFormatter.prototype.export.apply(this, arguments);
};
CommonJSInteropFormatter.prototype.exportSpecifier = function () {
CommonJSFormatter.prototype.exportSpecifier.apply(this, arguments);
};
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