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b68483e31b
CoffeeScript doesn't allow you to assign to global variables using variable assignment syntax (though you can assign properties to the global object), which is the way to create package-level shared variables in Meteor. This commit provides a CoffeeScript-specific to share variables between files in a package without adding a redundant alternative for JavaScript files: simply assign properties on the symbol `shared`.
44 lines
1.4 KiB
JavaScript
44 lines
1.4 KiB
JavaScript
var fs = Npm.require('fs');
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var path = Npm.require('path');
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var coffee = Npm.require('coffee-script');
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var handler = function (compileStep) {
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var source = compileStep.read().toString('utf8');
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var options = {
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bare: true,
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filename: compileStep.inputPath,
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literate: path.extname(compileStep.inputPath) === '.litcoffee'
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};
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try {
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var output = coffee.compile(source, options);
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} catch (e) {
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// XXX better error handling, once the Plugin interface support it
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throw new Error(
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compileStep.inputPath + ':' +
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(e.location ? (e.location.first_line + ': ') : ' ') +
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e.message
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);
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}
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// We want the symbol "share" to be visible to all CoffeeScript files in the
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// package (and shared between them), but not visible to JavaScript
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// files. (That's because we don't want to introduce two competing ways to
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// make package-local variables into JS ("share" vs assigning to non-var
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// variables).) The following hack accomplishes that: "__coffeescriptShare"
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// will be visible at the package level and "share" at the file level.
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output = ("__coffeescriptShare = __coffeescriptShare || {}; " +
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"var share = __coffeescriptShare;" + output);
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compileStep.addJavaScript({
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path: compileStep.inputPath + ".js",
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sourcePath: compileStep.inputPath,
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data: output,
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lineForLine: false
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});
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};
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Plugin.registerSourceHandler("coffee", handler);
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Plugin.registerSourceHandler("litcoffee", handler);
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