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emit type parameters #4

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emit type parameters #4

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41 changes: 26 additions & 15 deletions src/Parser.js
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,23 @@ function fromEntries (iterable) {
.reduce((obj, { 0: key, 1: val }) => Object.assign(obj, { [key]: val }), {})
}

// actual type names
// VoidKeyword -> undefined
const typeNameFromKind = fromEntries([
[SK.TypeLiteral, 'object'],
[SK.TypeReference, 'ref'],
[SK.FalseKeyword, 'false'],
[SK.TrueKeyword, 'true'],
[SK.NullKeyword, 'null'],
[SK.AnyKeyword, 'any'],
[SK.BooleanKeyword, 'boolean'],
[SK.NumberKeyword, 'number'],
[SK.ObjectKeyword, 'object'],
[SK.StringKeyword, 'string'],
[SK.UndefinedKeyword, 'undefined'],
[SK.BigIntKeyword, 'bigint'],
]);

module.exports = class Parser extends EventEmitter {
constructor() {
super();
Expand Down Expand Up @@ -193,34 +210,28 @@ module.exports = class Parser extends EventEmitter {
_readNode(n) {
let name = n.name && n.name.escapedText ? n.name.escapedText : null;

// Get type
// Get type: property type or method return type
const optional = Boolean(n.questionToken);
let type = fromEntries([
[SK.TypeLiteral, 'object'],
[SK.TypeReference, 'ref'],
[SK.FalseKeyword, 'false'],
[SK.TrueKeyword, 'true'],
[SK.NullKeyword, 'null'],
[SK.AnyKeyword, 'any'],
[SK.BooleanKeyword, 'boolean'],
[SK.NumberKeyword, 'number'],
[SK.ObjectKeyword, 'object'],
[SK.StringKeyword, 'string'],
[SK.UndefinedKeyword, 'undefined'],
[SK.BigIntKeyword, 'bigint'],
])[n.type.kind] || undefined;
let type = typeNameFromKind[n.type.kind];

if (type === 'ref') {
type = n.type.typeName.escapedText;
}

// get method parameters
const parameters = n.parameters && n.parameters.map(pn => ({
name: pn.name.escapedText,
type: typeNameFromKind[pn.type.kind],
}));

let levelData = {};
if (name) {
this._currentPath.push(name);
levelData = {
path: this._getCurrentPath(),
name,
type,
parameters,
};
this.emit('level-up', levelData);
}
Expand Down