Add an experiment reading out a JSDoc comment

This commit is contained in:
Jos de Jong 2023-08-18 17:39:57 +02:00
parent 16eb09fe61
commit 3653077c95
7 changed files with 148 additions and 71 deletions

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@ -49,6 +49,7 @@ None of the experiments (`infer1` and `infer2`) are outputting something useful
pnpm experiment:infer1 pnpm experiment:infer1
pnpm experiment:infer1-direct pnpm experiment:infer1-direct
pnpm experiment:infer2 pnpm experiment:infer2
pnpm experiment:infer3
### Read more ### Read more
@ -59,3 +60,4 @@ None of the experiments (`infer1` and `infer2`) are outputting something useful
- https://stackoverflow.com/questions/63944135/typescript-compiler-api-how-to-get-type-with-resolved-type-arguments - https://stackoverflow.com/questions/63944135/typescript-compiler-api-how-to-get-type-with-resolved-type-arguments
- https://stackoverflow.com/questions/48886508/typechecker-api-how-do-i-find-inferred-type-arguments-to-a-function - https://stackoverflow.com/questions/48886508/typechecker-api-how-do-i-find-inferred-type-arguments-to-a-function
- https://blog.logrocket.com/using-typescript-transforms-to-enrich-runtime-code-3fd2863221ed/ - https://blog.logrocket.com/using-typescript-transforms-to-enrich-runtime-code-3fd2863221ed/
- https://github.com/itsdouges/typescript-transformer-handbook#transforms

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@ -5,9 +5,10 @@
main: 'index.ts', main: 'index.ts',
scripts: { scripts: {
'build-and-run': 'ttsc -b && node build', 'build-and-run': 'ttsc -b && node build',
'experiment:infer1': 'ttsc -b && node build/plugins/infer.js ./src/generic/arithmetic.ts', 'experiment:infer1': 'ttsc -b && node build/plugins/infer1.js ./src/generic/arithmetic.ts',
'experiment:infer1-direct': 'ttsc -b && node build/plugins/infer.js ./src/experiment/arithmeticInfer1.ts', 'experiment:infer1-direct': 'ttsc -b && node build/plugins/infer1.js ./src/experiment/arithmeticInfer1.ts',
'experiment:infer2': 'ttsc -b && node build/plugins/infer2.js ./src/experiment/arithmeticInfer2.ts', 'experiment:infer2': 'ttsc -b && node build/plugins/infer2.js ./src/experiment/arithmeticInfer2.ts',
'experiment:infer3': 'ttsc -b && node build/plugins/infer3.js ./src/experiment/arithmeticInfer3.js',
test: 'echo "Error: no test specified" && exit 1', test: 'echo "Error: no test specified" && exit 1',
}, },
keywords: [ keywords: [

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@ -1,152 +1,143 @@
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@ -164,9 +155,9 @@ packages:
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'@tsconfig/node12': 1.0.11 '@tsconfig/node12': 1.0.11
'@tsconfig/node14': 1.0.3 '@tsconfig/node14': 1.0.3
'@tsconfig/node16': 1.0.3 '@tsconfig/node16': 1.0.4
'@types/node': 18.11.18 '@types/node': 18.11.18
acorn: 8.8.2 acorn: 8.10.0
acorn-walk: 8.2.0 acorn-walk: 8.2.0
arg: 4.1.3 arg: 4.1.3
create-require: 1.1.1 create-require: 1.1.1
@ -177,19 +168,19 @@ packages:
yn: 3.1.1 yn: 3.1.1
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@ -0,0 +1,16 @@
// @ts-check
/**
* Function square
*
* Description of function square bla bla bla
*
* @param {{
* multiply: (a: number, b: number) => number,
* unaryMinus: (x: number) => number
* }} dep
* @return {(a: number) => number}
*/
export function square3 (dep) {
return z => dep.multiply(z, z)
}

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@ -1,4 +1,4 @@
export function infer<T>(arg: T) : T { export function infer<T>(arg: T) : T {
console.error('infer should be replace with runtime type information by a magic TypeScript plugin') console.error('infer should be replaced with runtime type information by a magic TypeScript plugin')
return arg return arg
} }

View File

@ -27,7 +27,7 @@ export function infer(sourceFile: ts.SourceFile) {
// z => dep.multiply(z, z) // z => dep.multiply(z, z)
// ) // )
if (node?.['name']?.kind === ts.SyntaxKind.Identifier && node?.['name']['escapedText'] === 'dep') { if (node?.['name']?.kind === ts.SyntaxKind.Identifier && node?.['name']['escapedText'] === 'dep') {
console.log('dep', getType(node['type'].kind), node) // console.log('dep', getType(node['type'].kind), node)
node['type']?.members?.forEach(member => { node['type']?.members?.forEach(member => {
console.log('member', { console.log('member', {

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