63 lines
1.8 KiB
JavaScript
63 lines
1.8 KiB
JavaScript
// Generated by CoffeeScript 2.5.1
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// # Stream Transformer Sync
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// Provides a synchronous alternative to the CSV transformer.
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// ## Usage
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// `const records = transform(records, [options], handler)`
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// ## Source Code
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var clone, transform;
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transform = require('.');
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({clone} = require('mixme'));
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module.exports = function() {
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var argument, callback, chunks, expected_handler_length, handler, i, j, k, len, len1, options, record, records, transformer, type;
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// Import arguments normalization
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options = {};
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for (i = j = 0, len = arguments.length; j < len; i = ++j) {
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argument = arguments[i];
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type = typeof argument;
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if (argument === null) {
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type = 'null';
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} else if (type === 'object' && Array.isArray(argument)) {
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type = 'array';
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}
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if (type === 'array') {
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records = argument;
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} else if (type === 'object') {
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options = clone(argument);
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} else if (type === 'function') {
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if (handler && i === arguments.length - 1) {
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callback = argument;
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} else {
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handler = argument;
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}
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} else if (type !== 'null') {
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throw new Error(`Invalid Arguments: got ${JSON.stringify(argument)} at position ${i}`);
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}
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}
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// Validate arguments
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expected_handler_length = 1;
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if (options.params) {
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expected_handler_length++;
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}
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if (handler.length > expected_handler_length) {
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throw Error('Invalid Handler: only synchonous handlers are supported');
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}
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// Start transformation
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chunks = [];
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transformer = new transform.Transformer(options, handler);
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transformer.push = function(chunk) {
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return chunks.push(chunk);
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};
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for (k = 0, len1 = records.length; k < len1; k++) {
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record = records[k];
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transformer._transform(record, null, (function() {}));
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}
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return chunks;
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};
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