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cleanup old experiments and typescript-rtti, update readme

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This commit is contained in:
Jos de Jong 2023-09-01 18:21:45 +02:00
parent dea521029e
commit cbb79d46fe
16 changed files with 68 additions and 518 deletions
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42
README.md
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@ -11,46 +11,28 @@ pnpm build-and-run
## experiment ## experiment
See: the section under `/src/experiment` and `/src/plugins`. Have a look at the section under `/src/experiment` and `/src/plugins`:
- `src/plugins/typeInferPlugin.ts` is the actual plugin
- in `tsconfig.json` we configure TypeScript to run the plugin
- `src/experiment/arithmeticInfer.ts` with an example where we define `__infer__`
- `build/experiment/arithmeticInfer.ts` where the `__infer__` string literal is replace with the actual types
### The idea ### The idea
Create a TypeScript plugin which can replace structures like: Create a TypeScript plugin which can replace a string literal like `__infer__` in a typed-function definition:
infer(factoryFunction) typed('square', '__infer__', <T>(dep: { ... } => { ... })
where `factoryFunction` is a mathjs factory function in TypeScript, with something like: with the actual types, something like:
infer({ signature: factoryFunction }) typed('square', '{ deps: { multiply: (a: T, b: T) => T; }; return: (a: T) => T }', <T>(dep: { ... } => { ... })
where `signature` is a string containing the type of the factory function and its dependencies.
Relevant methods of the TypeScript compiler are:
```ts
const program = ts.createProgram(fileNames, options)
const typeChecker = program.getTypeChecker()
// relevant methods:
//
// typeChecker.getSymbolAtLocation
// typeChecker.getTypeOfSymbolAtLocation
// typeChecker.getResolvedSignature
// typeChecker.getSignaturesOfType
```
### Status
None of the experiments (`infer1` and `infer2`) are outputting something useful yet.
(We can discuss what syntax we like most, this is just a POC)
### How to run ### How to run
pnpm experiment:infer1 pnpm build-and-run
pnpm experiment:infer1-direct
pnpm experiment:infer2
pnpm experiment:infer3
pnpm experiment:infer4
### Read more ### Read more

14
package.json5
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@ -4,14 +4,7 @@
description: 'A hopeful final typescipt-pragmatic mathjs proof-of-concept', description: 'A hopeful final typescipt-pragmatic mathjs proof-of-concept',
main: 'index.ts', main: 'index.ts',
scripts: { scripts: {
'build-and-run': 'ttsc -b && node build', 'build-and-run': 'ttsc -b && node build/index.js',
'experiment:infer1': 'ttsc -b && node build/plugins/infer1.js ./src/generic/arithmetic.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:infer3': 'ttsc -b && node build/plugins/infer3.js ./src/experiment/arithmeticInfer3.js',
'experiment:infer4': 'ttsc -b && node build/plugins/infer4.js ./src/experiment/arithmeticInfer4.ts',
'experiment:infer4:plugin': 'ttsc -b',
test: 'echo "Error: no test specified" && exit 1',
}, },
keywords: [ keywords: [
'math', 'math',
@ -25,12 +18,9 @@
url: 'https://code.studioinfinity.org/glen/typocomath.git', url: 'https://code.studioinfinity.org/glen/typocomath.git',
}, },
dependencies: { dependencies: {
'reflect-metadata': '0.1.13', '@types/node': '20.5.7',
'source-map': '^0.7.4',
'typescript-rtti': '0.8.3',
}, },
devDependencies: { devDependencies: {
'@types/node': '18.11.18',
'ts-node': '10.9.1', 'ts-node': '10.9.1',
ttypescript: '1.5.15', ttypescript: '1.5.15',
typescript: '4.7.4', typescript: '4.7.4',

44
pnpm-lock.yaml
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@ -1,22 +1,16 @@
lockfileVersion: 5.4 lockfileVersion: 5.4
specifiers: specifiers:
'@types/node': 18.11.18 '@types/node': 20.5.7
reflect-metadata: 0.1.13
source-map: ^0.7.4
ts-node: 10.9.1 ts-node: 10.9.1
ttypescript: 1.5.15 ttypescript: 1.5.15
typescript: 4.7.4 typescript: 4.7.4
typescript-rtti: 0.8.3
dependencies: dependencies:
reflect-metadata: 0.1.13 '@types/node': 20.5.7
source-map: 0.7.4
typescript-rtti: 0.8.3_qh5shpxvbkbt6m3jqtkkp2svgu
devDependencies: devDependencies:
'@types/node': 18.11.18 ts-node: 10.9.1_l7whiu4appksmcywzzf5ucsgha
ts-node: 10.9.1_nv75g3i7xuh23du6z7qul3uiqi
ttypescript: 1.5.15_6oasmw356qmm23djlsjgkwvrtm ttypescript: 1.5.15_6oasmw356qmm23djlsjgkwvrtm
typescript: 4.7.4 typescript: 4.7.4
@ -61,9 +55,8 @@ packages:
resolution: {integrity: sha512-vxhUy4J8lyeyinH7Azl1pdd43GJhZH/tP2weN8TntQblOY+A0XbT8DJk1/oCPuOOyg/Ja757rG0CgHcWC8OfMA==} resolution: {integrity: sha512-vxhUy4J8lyeyinH7Azl1pdd43GJhZH/tP2weN8TntQblOY+A0XbT8DJk1/oCPuOOyg/Ja757rG0CgHcWC8OfMA==}
dev: true dev: true
/@types/node/18.11.18: /@types/node/20.5.7:
resolution: {integrity: sha512-DHQpWGjyQKSHj3ebjFI/wRKcqQcdR+MoFBygntYOZytCqNfkd2ZC4ARDJ2DQqhjH5p85Nnd3jhUJIXrszFX/JA==} resolution: {integrity: sha512-dP7f3LdZIysZnmvP3ANJYTSwg+wLLl8p7RqniVlV7j+oXSXAbt9h0WIBFmJy5inWZoX9wZN6eXx+YXd9Rh3RBA==}
dev: true
/acorn-walk/8.2.0: /acorn-walk/8.2.0:
resolution: {integrity: sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==} resolution: {integrity: sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==}
@ -114,10 +107,6 @@ packages:
resolution: {integrity: sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==} resolution: {integrity: sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==}
dev: true dev: true
/reflect-metadata/0.1.13:
resolution: {integrity: sha512-Ts1Y/anZELhSsjMcU605fU9RE4Oi3p5ORujwbIKXfWa+0Zxs510Qrmrce5/Jowq3cHSZSJqBjypxmHarc+vEWg==}
dev: false
/resolve/1.22.4: /resolve/1.22.4:
resolution: {integrity: sha512-PXNdCiPqDqeUou+w1C2eTQbNfxKSuMxqTCuvlmmMsk1NWHL5fRrhY6Pl0qEYYc6+QqGClco1Qj8XnjPego4wfg==} resolution: {integrity: sha512-PXNdCiPqDqeUou+w1C2eTQbNfxKSuMxqTCuvlmmMsk1NWHL5fRrhY6Pl0qEYYc6+QqGClco1Qj8XnjPego4wfg==}
hasBin: true hasBin: true
@ -127,17 +116,12 @@ packages:
supports-preserve-symlinks-flag: 1.0.0 supports-preserve-symlinks-flag: 1.0.0
dev: true dev: true
/source-map/0.7.4:
resolution: {integrity: sha512-l3BikUxvPOcn5E74dZiq5BGsTb5yEwhaTSzccU6t4sDOH8NWJCstKO5QT2CvtFoK6F0saL7p9xHAqHOlCPJygA==}
engines: {node: '>= 8'}
dev: false
/supports-preserve-symlinks-flag/1.0.0: /supports-preserve-symlinks-flag/1.0.0:
resolution: {integrity: sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==} resolution: {integrity: sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==}
engines: {node: '>= 0.4'} engines: {node: '>= 0.4'}
dev: true dev: true
/ts-node/10.9.1_nv75g3i7xuh23du6z7qul3uiqi: /ts-node/10.9.1_l7whiu4appksmcywzzf5ucsgha:
resolution: {integrity: sha512-NtVysVPkxxrwFGUUxGYhfux8k78pQB3JqYBXlLRZgdGUqTO5wU/UyHop5p70iEbGhB7q5KmiZiU0Y3KlJrScEw==} resolution: {integrity: sha512-NtVysVPkxxrwFGUUxGYhfux8k78pQB3JqYBXlLRZgdGUqTO5wU/UyHop5p70iEbGhB7q5KmiZiU0Y3KlJrScEw==}
hasBin: true hasBin: true
peerDependencies: peerDependencies:
@ -156,7 +140,7 @@ packages:
'@tsconfig/node12': 1.0.11 '@tsconfig/node12': 1.0.11
'@tsconfig/node14': 1.0.3 '@tsconfig/node14': 1.0.3
'@tsconfig/node16': 1.0.4 '@tsconfig/node16': 1.0.4
'@types/node': 18.11.18 '@types/node': 20.5.7
acorn: 8.10.0 acorn: 8.10.0
acorn-walk: 8.2.0 acorn-walk: 8.2.0
arg: 4.1.3 arg: 4.1.3
@ -176,25 +160,15 @@ packages:
typescript: '>=3.2.2' typescript: '>=3.2.2'
dependencies: dependencies:
resolve: 1.22.4 resolve: 1.22.4
ts-node: 10.9.1_nv75g3i7xuh23du6z7qul3uiqi ts-node: 10.9.1_l7whiu4appksmcywzzf5ucsgha
typescript: 4.7.4 typescript: 4.7.4
dev: true dev: true
/typescript-rtti/0.8.3_qh5shpxvbkbt6m3jqtkkp2svgu:
resolution: {integrity: sha512-uX1A0JKs1o/ptLJqkubRCGgN7NOCYSTKRXyRIjG80exsLrPDq4jJWMfQxlHMAcv/zjoX0V6iIGU7bwjGWTzpLg==}
engines: {node: '>=10'}
peerDependencies:
reflect-metadata: ^0.1.13
typescript: ^4.5 || ^4.6 || ^4.7
dependencies:
reflect-metadata: 0.1.13
typescript: 4.7.4
dev: false
/typescript/4.7.4: /typescript/4.7.4:
resolution: {integrity: sha512-C0WQT0gezHuw6AdY1M2jxUO83Rjf0HP7Sk1DtXj6j1EwkQNZrHAg2XPWlq62oqEhYvONq5pkC2Y9oPljWToLmQ==} resolution: {integrity: sha512-C0WQT0gezHuw6AdY1M2jxUO83Rjf0HP7Sk1DtXj6j1EwkQNZrHAg2XPWlq62oqEhYvONq5pkC2Y9oPljWToLmQ==}
engines: {node: '>=4.2.0'} engines: {node: '>=4.2.0'}
hasBin: true hasBin: true
dev: true
/v8-compile-cache-lib/3.0.1: /v8-compile-cache-lib/3.0.1:
resolution: {integrity: sha512-wa7YjyUGfNZngI/vtK0UHAN+lgDCxBPCylVXGp0zu59Fz5aiGtNXaq3DhIov063MorB+VfufLh3JlF2KdTK3xg==} resolution: {integrity: sha512-wa7YjyUGfNZngI/vtK0UHAN+lgDCxBPCylVXGp0zu59Fz5aiGtNXaq3DhIov063MorB+VfufLh3JlF2KdTK3xg==}

7
src/core/Dispatcher.ts
View File

@ -1,6 +1,3 @@
import "reflect-metadata"
import { reflect, type CallSite } from 'typescript-rtti'
/* A Dispatcher is a collection of operations that do run-time /* A Dispatcher is a collection of operations that do run-time
* dispatch on the types of their arguments. Thus, every individual * dispatch on the types of their arguments. Thus, every individual
* method is like a typed-function (from the library by that name), * method is like a typed-function (from the library by that name),
@ -51,8 +48,8 @@ export class Dispatcher {
console.log('Pretending to install', name, signature, '=>', returns) console.log('Pretending to install', name, signature, '=>', returns)
// @ts-ignore // @ts-ignore
console.log(name, 'signature', reflect(signature)) // console.log(name, 'signature', reflect(signature))
console.log(name, 'dependencies', reflect(dependencies)) // console.log(name, 'dependencies', reflect(dependencies))
//TODO: implement me //TODO: implement me
} }
installType(name: TypeName, typespec: TypeSpecification) { installType(name: TypeName, typespec: TypeSpecification) {

2
src/experiment/arithmeticInfer4.ts → src/experiment/arithmeticInfer.ts
View File

@ -1,6 +1,6 @@
import { typed } from '../generic/infer' import { typed } from '../generic/infer'
export const square = typed('__infer__', <T>(dep: { export const square = typed('square', '__infer__', <T>(dep: {
multiply: (a: T, b: T) => T, multiply: (a: T, b: T) => T,
unaryMinus: (x: T) => T, // just for the experiment unaryMinus: (x: T) => T, // just for the experiment
}): (a: T) => T => }): (a: T) => T =>

8
src/experiment/arithmeticInfer1.ts
View File

@ -1,8 +0,0 @@
import {infer} from '../generic/infer'
export const square = infer(<T>(dep: {
multiply: (a: number, b: number) => number,
unaryMinus: (x: number) => number, // just for the experiment
}): (a: number) => number =>
z => dep.multiply(z, z)
)

15
src/experiment/arithmeticInfer2.ts
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@ -1,15 +0,0 @@
import { infer } from '../generic/infer'
import { Dependencies, Signature } from '../interfaces/type'
export type multiplyDep<T> = Dependencies<'multiply', T>
export const square1 =
<T>(dep: Dependencies<'multiply', T>): Signature<'square', T> =>
z => dep.multiply(z, z)
export const square2 = infer(<T>(dep: {
multiply: (a: number, b: number) => number,
unaryMinus: (x: number) => number, // just for the experiment
}): (a: number) => number =>
z => dep.multiply(z, z)
)

16
src/experiment/arithmeticInfer3.js
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@ -1,16 +0,0 @@
// @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)
}

9
src/generic/infer.ts
View File

@ -3,7 +3,12 @@ export function infer<T>(arg: T) : T {
return arg return arg
} }
export function typed<T>(dep: string, arg: T) : T { export function typed<T>(name: string, types: string, arg: T) : T {
console.error('infer should be replaced with runtime type information by a magic TypeScript plugin') // TODO: implement typed-function for real
if (types === '__infer__') {
console.error('__infer__ should be replaced with runtime type information by the TypeScript plugin')
}
console.log(`Creating typed-function "${name}" with types ${types}`)
return arg return arg
} }

109
src/index.ts
View File

@ -1,99 +1,28 @@
import 'reflect-metadata'
import {Dispatcher} from './core/Dispatcher.js'
import * as specifications from './all.js'
import { Complex } from './Complex/type.js' import { Complex } from './Complex/type.js'
import { absquare as absquare_complex } from './Complex/arithmetic.js' import { absquare as absquare_complex } from './Complex/arithmetic.js'
import { square } from './experiment/arithmeticInfer.js'
import { CallSite, ReflectedObjectRef, reflect } from 'typescript-rtti' const add = (a: number, b: number) => a + b
import { square } from './generic/arithmetic.js' const multiply = (a: number, b: number) => a * b
const unaryMinus = (a: number) => -a
// verify that typescript-rtti works (just as experiment) const absquare = (z: Complex<number>) => z.re * z.re + z.im * z.im
const add = (a: number, b: number): number => a + b
console.log('reflect add')
console.log('parameterNames', reflect(add).parameterNames)
console.log('parameterTypes', reflect(add).parameterTypes.map(type => type.toString()))
console.log('returnType', reflect(add).returnType.toString())
console.log()
// output:
// reflect function add
// parameterNames [ 'a', 'b' ]
// parameterTypes [ 'class Number', 'class Number' ]
// returnType class Number
// try out a very simple case (just as experiment)
function createSquare(deps: {
multiply: (a: number, b: number) => number,
subtract: (a: number, b: number) => number
}) {
return (a: number) => deps.multiply(a, a)
}
console.log('reflect createSquare')
console.log('parameter names', reflect(createSquare).parameters.map(parameter => parameter.name))
// console.log('parameter[0]', (reflect(createSquare).parameters[0] as ReflectedFunctionParameter))
// @ts-ignore
console.log('parameterTypes[0]', (reflect(createSquare).parameterTypes[0] as ReflectedObjectRef)._ref.m)
console.log('parameterTypes[0].ref.m[0]',
// @ts-ignore
(reflect(createSquare).parameterTypes[0] as ReflectedObjectRef)._ref.m[0].n,
// @ts-ignore
(reflect(createSquare).parameterTypes[0] as ReflectedObjectRef)._ref.m[0]
)
console.log('parameterTypes[0].ref.m[0].t.m',
// @ts-ignore
(reflect(createSquare).parameterTypes[0] as ReflectedObjectRef)._ref.m[0].t.m
)
// @ts-ignore
// console.log('parameters[0]', reflect(createSquare).parameters[0])
// FIXME: where to find the information of the types of the dependencies multiply and subtract?
// Test whether we loose the type information when casting to a generic interface
// Conclusion: we keep the information, that is good.
console.log()
console.log('reflect createFunction')
type MathjsDependencies = Record<string, Function>
type MathjsCreateFunction = (deps: MathjsDependencies) => Function
const createFunction: MathjsCreateFunction = createSquare as MathjsCreateFunction
console.log('parameter names', reflect(createFunction).parameters.map(parameter => parameter.name))
// @ts-ignore
console.log('parameterTypes[0]', (reflect(createFunction).parameterTypes[0] as ReflectedObjectRef)._ref.m)
// TODO: more specific definition of Specifications
type Specifications = Record<string, Record<string, unknown>>
console.log()
console.log('CallSite')
function reflectSpecifications<T>(specifications: Specifications, callSite? : CallSite) {
console.log('specifications', reflect(callSite).parameters[0])
// @ts-ignore
console.log('specifications', reflect(callSite).parameters[0]._ref) // shows 'numbers', 'Complex, 'complex', 'generic'
// @ts-ignore
console.log('specifications', reflect(callSite).parameters[0]._ref.m
.find(item => item.n === 'generic').t.m) // shows 'square', 'unequal'
// @ts-ignore
console.log('specifications', reflect(callSite).parameters[0]._ref.m
.find(item => item.n === 'generic').t.m
.find(item => item.n === 'square').t.p) // [ { n: 'dep', t: [Function: t], b: undefined, v: null } ]
// @ts-ignore
// FIXME: now, we should be able to get the signature of the multiply dependency of the function square, but how?
}
reflectSpecifications<Specifications>(specifications);
// TODO: import all specifications (turned off for debugging purposes)
// export default new Dispatcher(Specifications)
const mockRealAdd = (a: number, b: number) => a+b
const mockComplexAbsquare = (z: Complex<number>) => z.re*z.re + z.im*z.im
const quatAbsquare = absquare_complex({ const quatAbsquare = absquare_complex({
add: mockRealAdd, add,
absquare: mockComplexAbsquare absquare
}) })
const myabs = quatAbsquare({re: {re: 0, im: 1}, im: {re:2, im: 3}}) const result = quatAbsquare({re: {re: 0, im: 1}, im: {re:2, im: 3}})
const typeTest: typeof myabs = 7 // check myabs is just a number const typeTest: typeof result = 7 // check myabs is just a number
console.log() console.log()
console.log('Result is', myabs) console.log('Result is', result)
const mySquare = square({
multiply,
unaryMinus
})
console.log()
console.log('mySquare(4)=', mySquare(4))

73
src/plugins/infer1.ts
View File

@ -1,73 +0,0 @@
import { readFileSync } from "fs";
import * as ts from "typescript";
import { inspect } from 'util'
export function infer(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'
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])
}
// recognize a structure like:
//
// export const square = infer(<T>(dep: {
// multiply: (a: number, b: number) => number
// }): (a: number) => number =>
// z => dep.multiply(z, z)
// )
if (node?.['name']?.kind === ts.SyntaxKind.Identifier && node?.['name']['escapedText'] === 'dep') {
// console.log('dep', getType(node['type'].kind), node)
node['type']?.members?.forEach(member => {
console.log('member', {
name: member.name.escapedText,
parameters: member.type.parameters.map(parameter => {
return parameter.name.escapedText + ': ' + getType(parameter.type.kind)
}),
returns: getType(member.type.type.kind)
})
})
}
// recognize a structure like:
//
// export const square =
// <T>(dep: Dependencies<'multiply' | 'unaryMinus', T>): Signature<'square', T> =>
// z => dep.multiply(z, z)
if (node?.['name']?.kind === ts.SyntaxKind.Identifier && node?.['name']['escapedText'] === 'dep') {
// TODO
}
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('AST', fileName, inspect(sourceFile, { depth: null, colors: true }))
console.log(sourceFile.text)
console.log()
infer(sourceFile);
});

74
src/plugins/infer2.ts
View File

@ -1,74 +0,0 @@
import * as ts from "typescript"
// based on: https://github.com/Microsoft/TypeScript/wiki/Using-the-Compiler-API#using-the-type-checker
infer2(process.argv.slice(2), {
target: ts.ScriptTarget.ES5,
module: ts.ModuleKind.CommonJS
})
function infer2(
fileNames: string[],
options: ts.CompilerOptions
): void {
const program = ts.createProgram(fileNames, options)
const typeChecker = program.getTypeChecker()
for (const sourceFile of program.getSourceFiles()) {
if (!sourceFile.isDeclarationFile) {
ts.forEachChild(sourceFile, visit)
}
}
return
function visit(node: ts.Node) {
// // Only consider exported nodes
// if (!isNodeExported(node)) {
// return;
// }
// console.log('Node', node.kind, node?.['name']?.escapedText)
if (ts.isModuleDeclaration(node)) {
// This is a namespace, visit its children
console.log('check')
ts.forEachChild(node, visit);
} else if (ts.isTypeAliasDeclaration(node)) {
console.log('isTypeAliasDeclaration', node.name.escapedText)
let symbol = typeChecker.getSymbolAtLocation(node.name);
if (symbol) {
const symbolType = typeChecker.getTypeOfSymbolAtLocation(symbol, symbol.valueDeclaration)
const symbolSignature = typeChecker.getSignaturesOfType(symbolType, ts.SignatureKind.Call)
// checker.getResolvedSignature(symbol)
console.log('symbol', symbol.getName(), symbolSignature)
// getTypeOfSymbolAtLocation
// getResolvedSignature
}
} else if (ts.isCallExpression(node)) {
console.log('isCallExpression', node.expression)
} else if (ts.isFunctionDeclaration(node)) {
console.log('isFunctionDeclaration', node.name.escapedText, { typeParameter0: node.typeParameters[0] })
if (node.name.escapedText === 'infer') {
const param0 = node.typeParameters[0]
if (ts.isPropertyDeclaration(param0)) {
const symbol = typeChecker.getSymbolAtLocation(param0)
// TODO: get resolving
// console.log('getResolvedSignature', typeChecker.getResolvedSignature(node) )
// const symbolType = typeChecker.getTypeOfSymbolAtLocation(symbol, symbol.valueDeclaration)
// const symbolSignature = typeChecker.getSignaturesOfType(symbolType, ts.SignatureKind.Call)
// console.log('symbol', symbol.getName(), symbolSignature)
// console.log('getSignaturesOfType', typeChecker.getSignaturesOfType(param0)
}
}
}
}
}

65
src/plugins/infer3.ts
View File

@ -1,65 +0,0 @@
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);
});

75
src/plugins/infer4.ts
View File

@ -1,75 +0,0 @@
import { readFileSync } from "fs";
import * as ts from "typescript";
import { inspect } from 'util'
export function infer(sourceFile: ts.SourceFile, typeChecker: ts.TypeChecker) {
recurse(sourceFile);
function recurse(node: ts.Node) {
if (ts.isCallExpression(node)) {
if (ts.isIdentifier(node.expression) && node.expression.escapedText === 'infer') {
const argNode = node.arguments[0]
if (ts.isArrowFunction(argNode)) {
const text = sourceFile.text.slice(argNode.pos, argNode.end)
console.log('infer', text)
console.log('AST')
console.log(node)
console.log()
const returnType = argNode.type.getText(sourceFile)
console.log('returnType', returnType)
// (a: number) => number
const paramNode = argNode.parameters[0]
const paramType = paramNode.type.getText(sourceFile)
console.log('paramType', paramType) // (a: number) => number
// {
// multiply: (a: number, b: number) => number,
// unaryMinus: (x: number) => number, // just for the experiment
// }
const type = typeChecker.getTypeAtLocation(paramNode)
const typeStr = checker.typeToString(type, paramNode, ts.TypeFormatFlags.InTypeAlias)
console.log('paramTypeString', typeStr)
// { multiply: (a: number, b: number) => number; unaryMinus: (x: number) => number; }
}
}
}
ts.forEachChild(node, recurse);
}
}
const fileNames = process.argv.slice(2);
console.log('infer files', fileNames)
const options = {
target: ts.ScriptTarget.ES2022,
module: ts.ModuleKind.ES2022
}
let program = ts.createProgram(fileNames, options);
const checker = program.getTypeChecker()
for (const sourceFile of program.getSourceFiles()) {
if (!sourceFile.isDeclarationFile) {
console.log('FILE')
console.log(sourceFile.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')
infer(sourceFile, checker);
}
}

25
src/plugins/myFirstPlugin.ts → src/plugins/typeInferPlugin.ts
View File

@ -1,4 +1,4 @@
import * as ts from 'typescript'; import ts from 'typescript'
const transformer: ts.TransformerFactory<ts.SourceFile> = context => { const transformer: ts.TransformerFactory<ts.SourceFile> = context => {
// TODO: get a reference to the program instance that the plugin is running in instead of creating a new program? // TODO: get a reference to the program instance that the plugin is running in instead of creating a new program?
@ -7,24 +7,23 @@ const transformer: ts.TransformerFactory<ts.SourceFile> = context => {
return sourceFile => { return sourceFile => {
// For the experiment we only want to influence a single file // For the experiment we only want to influence a single file
if (!sourceFile.fileName.endsWith('arithmeticInfer4.ts')) { if (!sourceFile.fileName.endsWith('arithmeticInfer.ts')) {
return sourceFile return sourceFile
} }
const visitor = (node: ts.Node): ts.Node => { const visitor = (node: ts.Node): ts.Node => {
// @ts-ignore // @ts-ignore
if (ts.isStringLiteral(node) && node.text === '__infer__') { if (ts.isStringLiteral(node) && node.text === '__infer__') {
console.log('STRING LITERAL', node.text) console.log('FOUND AN OCCURRENCE OF __infer__')
console.log(node)
const parentNode = node.parent const parentNode = node.parent
console.log('PARENT') // console.log('PARENT')
console.log(parentNode) // console.log(parentNode)
// TODO: validate that the parent is indeed a mathjs typed function with deps // TODO: validate that the parent is indeed a mathjs typed function with deps
// @ts-ignore // @ts-ignore
const argNode = parentNode.arguments[1] const argNode = parentNode.arguments[2]
const returnType = argNode.type.getText(sourceFile) const returnType = argNode.type.getText(sourceFile)
console.log('RETURN TYPE') console.log('RETURN TYPE')
console.log(returnType) console.log(returnType)
@ -48,11 +47,11 @@ const transformer: ts.TransformerFactory<ts.SourceFile> = context => {
return ts.factory.createStringLiteral(depsAndReturnType) return ts.factory.createStringLiteral(depsAndReturnType)
} }
return ts.visitEachChild(node, visitor, context); return ts.visitEachChild(node, visitor, context)
}; }
return ts.visitNode(sourceFile, visitor); return ts.visitNode(sourceFile, visitor)
}; }
}; }
export default transformer; export default transformer

2
tsconfig.json
View File

@ -9,7 +9,7 @@
"moduleResolution": "Node", "moduleResolution": "Node",
"module": "commonjs", "module": "commonjs",
"plugins": [{ "plugins": [{
"transform": "./src/plugins/myFirstPlugin.ts", "transform": "./src/plugins/typeInferPlugin.ts",
"type": "raw" "type": "raw"
}] }]
} }