Riven/srcgen/dotUtils.js

131 lines
4.1 KiB
JavaScript

const changeCase = require('change-case');
// flatMap: https://gist.github.com/samgiles/762ee337dff48623e729
// [B](f: (A) ⇒ [B]): [B] ; Although the types in the arrays aren't strict (:
Array.prototype.flatMap = function(lambda) {
return Array.prototype.concat.apply([], this.map(lambda));
};
Array.prototype.groupBy = function(lambda) {
return Object.entries(this.reduce((agg, x) => {
const k = lambda(x);
(agg[k] = agg[k] || []).push(x);
return agg;
}, {}));
}
function preamble() {
return `// This file is automatically generated.
// Do not directly edit.
// Generated on ${(new Date).toISOString()}.`;
}
function capitalize(input) {
return input[0].toUpperCase() + input.slice(1);
}
function decapitalize(input) {
return input[0].toLowerCase() + input.slice(1);
}
function normalizeSchemaName(name) {
return name.replace(/DTO/ig, '');
}
function normalizeArgName(name) {
const tokens = name.split('_');
const argName = decapitalize(tokens.map(capitalize).join(''));
return 'base' === argName ? 'Base' : argName;
}
function normalizePropName(propName, schemaName, value) {
const out = changeCase.snakeCase(propName);
if ('type' === out)
return 'r#' + out;
return out;
// return propName;
// var tokens = propName.split('_');
// var name = tokens.map(capitalize).join('');
// if (name === schemaName)
// name += stringifyType(value);
// return name;
}
function stringifyType(prop, endpoint = null, optional = false, fullpath = true, owned = true) {
if (prop.anyOf) {
prop = prop.anyOf[0];
}
let refType = prop['$ref'];
if (refType) {
return (!endpoint ? '' : changeCase.snakeCase(endpoint) + '::') +
normalizeSchemaName(refType.slice(refType.indexOf('.') + 1));
}
if (optional) {
return `Option<${stringifyType(prop, endpoint, false, fullpath)}>`;
}
switch (prop.type) {
case 'boolean': return 'bool';
case 'integer': return ('int32' === prop.format ? 'i32' : 'i64');
case 'number': return ('float' === prop.format ? 'f32' : 'f64');
case 'array':
const subprop = stringifyType(prop.items, endpoint, optional, fullpath, owned);
return (owned ? (fullpath ? 'std::vec::' : '') + `Vec<${subprop}>` : `&[${subprop}]`);
case 'string': return (owned ? 'String' : '&str');
case 'object':
return 'std::collections::HashMap<' + stringifyType(prop['x-key'], endpoint, optional, fullpath, owned) + ', ' +
stringifyType(prop.additionalProperties, endpoint, optional, fullpath, owned) + '>';
default: return prop.type;
}
}
function formatJsonProperty(name) {
return `#[serde(rename = "${name}")]`;
}
function formatQueryParamStringify(name, prop, ownedOk = false) {
switch (prop.type) {
case 'boolean': return `${name} ? "true" : "false"`;
case 'string': return name;
default: return (ownedOk ? '' : '&*') + `${name}.to_string()`;
}
}
function formatAddQueryParam(param) {
let k = `"${param.name}"`;
let name = changeCase.snakeCase(param.name);
let nc = param.required ? '' : `if let Some(${name}) = ${name} `;
let prop = param.schema;
switch (prop.type) {
case 'array': return `${nc}{ query_params.extend_pairs(${name}.iter()`
+ `.map(|w| (${k}, ${formatQueryParamStringify("w", prop, true)}))); }`;
case 'object': throw 'unsupported';
default:
return `${nc}{ query_params.append_pair(${k}, ${formatQueryParamStringify(name, prop)}); }`;
}
}
function formatRouteArgument(route, pathParams = []) {
if (!pathParams.length)
return `"${route}".to_owned()`;
route = route.replace(/\{\S+?\}/g, '{}');
const args = pathParams
.map(({name}) => name)
.map(changeCase.snakeCase)
.join(', ');
return `format!("${route}", ${args})`;
}
module.exports = {
changeCase,
preamble,
capitalize,
decapitalize,
normalizeSchemaName,
normalizeArgName,
normalizePropName,
stringifyType,
formatJsonProperty,
formatAddQueryParam,
formatRouteArgument,
};