48 lines
1.1 KiB
JavaScript
48 lines
1.1 KiB
JavaScript
const definitions = require("../src/definitions");
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const flatMap = require("array.prototype.flatmap");
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const { typeSignature, mapProps, iterateProps, unique } = require("./util");
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const stdout = process.stdout;
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function params(fields) {
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return mapProps(fields)
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.map(typeSignature)
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.join(",");
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}
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function generate() {
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stdout.write(`
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// @flow
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/* eslint no-unused-vars: off */
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// THIS FILE IS AUTOGENERATED
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// see scripts/generateTypeDefinitions.js
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`);
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// generate union types
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const unionTypes = unique(
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flatMap(mapProps(definitions).filter(d => d.unionType), d => d.unionType)
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);
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unionTypes.forEach(unionType => {
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stdout.write(
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`type ${unionType} = ` +
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mapProps(definitions)
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.filter(d => d.unionType && d.unionType.includes(unionType))
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.map(d => d.name)
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.join("|") +
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";\n\n"
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);
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});
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// generate the type definitions
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iterateProps(definitions, typeDef => {
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stdout.write(`type ${typeDef.name} = {
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...BaseNode,
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type: "${typeDef.name}",
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${params(typeDef.fields)}
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};\n\n`);
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});
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}
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generate();
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