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Provide more details in dot api #850

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Oct 3, 2019
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64 changes: 59 additions & 5 deletions lib/repl/repl.js
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ const util = require('util');
const { aEval } = require('./awaitEval');
const { initSearch } = require('./repl-search');
const { removeQuotes, symbols } = require('../util');
const { EOL } = require('os');
const funcs = {};
let commands = [];
const stringColor = util.inspect.styles.string;
Expand Down Expand Up @@ -262,13 +263,27 @@ function displayTaiko() {
function displayUsageFor(name) {
const e = doc.find(e => e.name === name);
if (!e) {
console.log(`Function ${name} doesn't exist.`);
console.log(`Function ${name} doesn't exist.${EOL}`);
return;
}
console.log();
console.log(desc(e.description));
if (e.deprecated) {
console.log(`${EOL}DEPRECATED ${desc(e.deprecated)}${EOL}`);
}
console.log(`${desc(e.description)}${EOL}`);
if (e.params.length > 0) {
console.log(e.params.length > 1 ? 'Parameters:' : 'Parameter:');
console.log(`${EOL}${params(e.params)}${EOL}`);
}
if (e.returns) {
e.returns.map(e => {
console.log(
`Returns: ${type(e.type)} ${
e.description.type ? desc(e.description) : e.description
}${EOL}`,
);
});
}
if (e.examples.length > 0) {
console.log();
console.log(e.examples.length > 1 ? 'Examples:' : 'Example:');
console.log(
e.examples
Expand All @@ -280,7 +295,6 @@ function displayUsageFor(name) {
)
.join('\n'),
);
console.log();
}
}

Expand Down Expand Up @@ -336,4 +350,44 @@ const desc = d =>
)
.join(' ');

const type = t => {
switch (t.type) {
case 'NameExpression':
return t.name;
case 'OptionalType':
return type(t.expression);
case 'RestType':
return '...' + type(t.expression);
case 'TypeApplication':
return `${type(t.expression)}<${t.applications
.map(a => type(a))
.join(',')}>`;
case 'UnionType':
return `${t.elements.map(t => type(t)).join('|')}`;
}
};

const param = p => {
const name = p.name || '';
const t = p.type ? type(p.type) + ' - ' : '';
const d =
(p.description ? desc(p.description) : p.description) || '';
const dft = p.default ? `(optional, default ${p.default})` : '';

return `${name} - ${t}${d} ${dft}${EOL}`;
};

const params = p => {
return p
.map(
p =>
'* ' +
param(p) +
(p.properties
? p.properties.map(p => ` * ${param(p)}`).join('')
: ''),
)
.join('');
};

const isTaikoFunc = keyword => keyword.split('(')[0] in funcs;