59 lines
1.5 KiB
JavaScript
59 lines
1.5 KiB
JavaScript
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'use strict';
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const printString = require('../printString');
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const reactTestInstance = Symbol.for('react.test.json');
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function printChildren(children, print, indent, opts) {
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return children.map(child => printInstance(child, print, indent, opts)).join(opts.edgeSpacing);
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}
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function printProps(props, print, indent, opts) {
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return Object.keys(props).sort().map(name => {
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const prop = props[name];
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let printed = print(prop);
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if (typeof prop !== 'string') {
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if (printed.indexOf('\n') !== -1) {
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printed = '{' + opts.edgeSpacing + indent(indent(printed) + opts.edgeSpacing + '}');
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} else {
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printed = '{' + printed + '}';
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}
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}
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return opts.spacing + indent(name + '=') + printed;
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}).join('');
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}
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function printInstance(instance, print, indent, opts) {
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if (typeof instance == 'number') {
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return print(instance);
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} else if (typeof instance === 'string') {
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return printString(instance);
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}
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let result = '<' + instance.type;
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if (instance.props) {
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result += printProps(instance.props, print, indent, opts);
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}
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if (instance.children) {
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const children = printChildren(instance.children, print, indent, opts);
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result += '>' + opts.edgeSpacing + indent(children) + opts.edgeSpacing + '</' + instance.type + '>';
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} else {
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result += ' />';
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}
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return result;
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}
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module.exports = {
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test(object) {
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return object && object.$$typeof === reactTestInstance;
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},
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print(val, print, indent, opts) {
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return printInstance(val, print, indent, opts);
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}
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};
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