65 lines
2 KiB
TypeScript
65 lines
2 KiB
TypeScript
import { readFileSync } from "fs";
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import * as ts from "typescript";
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import { inspect } from 'util'
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export function infer3(sourceFile: ts.SourceFile) {
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recurse(sourceFile);
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function getType(kind: number) {
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switch(kind) {
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case ts.SyntaxKind.NumberKeyword: return 'number'
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case ts.SyntaxKind.StringKeyword: return 'string'
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case ts.SyntaxKind.BooleanKeyword: return 'boolean'
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case ts.SyntaxKind.JSDoc: return 'jsdoc'
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default: return String(ts.SyntaxKind[kind]) // TODO: work out all types
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}
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}
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function recurse(node: ts.Node) {
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if (node.kind === ts.SyntaxKind.Identifier) {
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console.log('Identifier', node['escapedText'], ts.SyntaxKind[node.kind])
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}
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if (node['jsDoc']) {
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console.log('Found a JSDoc comment:')
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// console.log(inspect(node['jsDoc'], { depth: null, colors: true }))
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const fullComment = sourceFile.text.slice(node.pos, node.end)
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console.log(fullComment)
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// TODO: next steps:
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// - either get the types from the TypeScript AST,
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// or extract them ourselves with regex or anything from the comment text
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// - After that, we have to transform the source file and insert the comments
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// as string or object that is runtime accessible in JavaScript
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}
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ts.forEachChild(node, recurse);
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}
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}
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const fileNames = process.argv.slice(2);
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console.log('infer files', fileNames)
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fileNames.forEach(fileName => {
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// Parse a file
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const sourceFile = ts.createSourceFile(
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fileName,
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readFileSync(fileName).toString(),
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ts.ScriptTarget.ES2022,
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/*setParentNodes */ true
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);
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console.log('FILE')
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console.log(fileName)
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console.log()
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console.log('SOURCE')
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console.log(sourceFile.text)
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console.log()
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console.log('AST')
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console.log(inspect(sourceFile, { depth: null, colors: true }))
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console.log()
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console.log('INFER')
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infer3(sourceFile);
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});
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