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Add ability to expose require() with standalone. #51

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Add ability to expose require() with standalone. #51

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36343a4
Add ability to expose require() with standalone.
jmm Mar 2, 2015
41681a5
Eliminate pointless boolean coercion.
jmm Mar 3, 2015
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50 changes: 39 additions & 11 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -38,17 +38,31 @@ module.exports = function (opts) {

var lineno = 1 + newlinesIn(prelude);
var sourcemap;


var externalRequireName = opts.externalRequireName || 'require';

if (opts.standalone) {
var umdContent = {
prelude: umd.prelude(opts.standalone).trim() + 'return (',
postlude: ');' + umd.postlude(opts.standalone)
};
}

return stream;

function write (row, enc, next) {
if (first && opts.standalone) {
var pre = umd.prelude(opts.standalone).trim();
stream.push(Buffer(pre + 'return '));
// If hasExports, output the bundle with an exposed require and no UMD
// wrapper, regardless of opts.standalone. See end() for UMD
// integration in this case.
if (first && stream.hasExports) {
stream.push(Buffer(externalRequireName + '='));
if (opts.standalone && row.expose !== undefined) {
stream.standaloneModule = row.expose;
}
}
else if (first && stream.hasExports) {
var pre = opts.externalRequireName || 'require';
stream.push(Buffer(pre + '='));
// If opts.standalone && !hasExports, wrap the bundle with UMD.
else if (first && opts.standalone) {
stream.push(Buffer(umdContent.prelude));
}
if (first) stream.push(Buffer(prelude + '({'));

Expand Down Expand Up @@ -99,10 +113,24 @@ module.exports = function (opts) {
stream.push(Buffer('},{},' + JSON.stringify(entries) + ')'));

if (opts.standalone) {
stream.push(Buffer(
'(' + JSON.stringify(stream.standaloneModule) + ')'
+ umd.postlude(opts.standalone)
));
umdContent.src = '';

// Bundle was not wrapped with UMD because of hasExports. Now output
// UMD prelude to wrap a require(standaloneModuleName) call.
if (stream.hasExports) {
umdContent.src +=
';\n' +
umdContent.prelude +
externalRequireName
;
}

umdContent.src +=
'(' + JSON.stringify(stream.standaloneModule) + ')' +
umdContent.postlude
;

stream.push(Buffer(umdContent.src));
}

if (sourcemap) {
Expand Down