cafe-grader-web Files · node_modules/ast-transform/index.js

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Location: cafe-grader-web/node_modules/ast-transform/index.js

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submission report

Commit Description:

submission report

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                    node_modules/ast-transform/index.js
                
             | 43 lines
             | 910 B
             | application/javascript 
             | JavascriptLexer
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      var codegen = require('escodegen')

      var esprima = require('esprima')

      var through = require('through')

      module.exports = astTransform

      function astTransform(transform, opts) {

        opts = opts || {}

        return function(file) {

          var stream = through(write, flush)

          var tr     = transform(file)

          var buffer = []

          if (!tr) return through()

          return stream

          function write(data) { buffer.push(data) }

          function flush() {

            buffer = buffer.join('')

            try {

              var ast = esprima.parse(buffer, opts)

            } catch(e) {

              return stream.emit('error', e)

            }

            tr(ast, function(err, updated) {

              if (err) return stream.emit('error', err)

              try {

                var code = codegen.generate(updated || ast)

              } catch(e) {

                return stream.emit('error', e)

              }

              stream.queue(code.code || code)

              stream.queue(null)

            })

          }

        }

      }

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				var codegen = require('escodegen')
				var esprima = require('esprima')
				var through = require('through')

				module.exports = astTransform

				function astTransform(transform, opts) {
				opts = opts \|\| {}

				return function(file) {
				var stream = through(write, flush)
				var tr = transform(file)
				var buffer = []

				if (!tr) return through()

				return stream

				function write(data) { buffer.push(data) }
				function flush() {
				buffer = buffer.join('')

				try {
				var ast = esprima.parse(buffer, opts)
				} catch(e) {
				return stream.emit('error', e)
				}

				tr(ast, function(err, updated) {
				if (err) return stream.emit('error', err)

				try {
				var code = codegen.generate(updated \|\| ast)
				} catch(e) {
				return stream.emit('error', e)
				}

				stream.queue(code.code \|\| code)
				stream.queue(null)
				})
				}
				}
				}