replace 'prompt' example by 'environment'

This commit is contained in:
Joeri Exelmans 2025-05-09 14:53:43 +02:00
parent f8008aa25d
commit b1c2e7836d
15 changed files with 317 additions and 517 deletions

View file

@ -1,27 +1,265 @@
import { compareTypes } from "../lib/compare/type.js";
import { ModuleStd } from "../lib/stdlib.js";
import { emptyDict, get, set } from "../lib/structures/dict.js";
import { emptySet, add } from "../lib/structures/set.js";
import { makeCompareFn } from "../lib/compare/dynamic.js"
import { Type } from "../lib/primitives/primitive_types.js";
import { number, select } from "@inquirer/prompts";
console.log(ModuleStd);
import { makeCompareFn } from "../lib/compare/dynamic.js";
import { compareTypes } from "../lib/compare/type.js";
import { getInst, getType, newDynamic } from "../lib/primitives/dynamic.js";
import { Bool, Double, Int, Type, UUID } from "../lib/primitives/primitive_types.js";
import { eqType, getSymbol } from "../lib/primitives/type.js";
import { ModuleStd } from "../lib/stdlib.js";
import { emptyDict, get, set, fold as foldDict } from "../lib/structures/dict.js";
import { fold as foldList } from "../lib/structures/list.js";
import { add, emptySet, fold as foldSet } from "../lib/structures/set.js";
import { symbolFunction } from "../lib/structures/type_constructors.js";
import { pretty, prettyT } from "../lib/util/pretty.js";
import { genUUID } from "../lib/util/random.js";
import { assignFn, unify } from "../lib/generics/generics.js";
// console.log(ModuleStd);
const addEntry = dict => i => t => {
const setOfInstances = get(dict)(t) || emptySet(makeCompareFn(t));
return set(dict)(t)(add(setOfInstances)(i));
}
};
const typeDict = ModuleStd.reduce((typeDict, {i, t}) => {
const typeDict = foldList(typeDict => dynamic => {
try {
const t = getType(dynamic);
// add instance to type:
return addEntry(
addEntry(typeDict)(i)(t)
addEntry(typeDict)(getInst(dynamic))(t)
)(t)(Type);
} catch (e) {
console.log('warning:', e.message);
return typeDict;
}
}, emptyDict(compareTypes));
})(emptyDict(compareTypes))(ModuleStd);
console.log(typeDict);
const functions = foldList(functions => dynamic => {
if (getSymbol(getType(dynamic)) === symbolFunction) {
return [...functions, dynamic];
}
return functions;
})([])(ModuleStd);
// console.log(typeDict);
// console.log(functions);
const defaultSelectOptions = {
pageSize: 20,
}
const selectInstance = async (type, msg) => {
const instances = get(typeDict)(type) || emptySet(makeCompareFn(type));
const choices = foldSet(acc => instance => {
return [...acc, {
value: instance,
name: pretty(instance),
}];
})(["(go back)", "(new)"])(instances);
const choice = await select({
message: `${msg} ${pretty(type)}:`,
choices,
...defaultSelectOptions,
});
if (choice === "(go back)") {
return;
}
if (choice === "(new)") {
return createInstance(type);
}
return choice;
}
const listInstances = async type => {
const choice = await selectInstance(type, "instances of");
if (choice === undefined) {
return;
}
await proxyDynamic(newDynamic(choice)(type));
return await listInstances(type);
}
const proxyDynamic = async dynamic => {
const type = getType(dynamic)
if (eqType(type)(Type)) {
return listTypeOptions(getInst(dynamic));
}
if (getSymbol(type) === symbolFunction) {
return listFunctionOptions(dynamic);
}
return listInstanceOptions(dynamic);
}
const listTypeOptions = async type => {
const choice = await select({
message: `type ${pretty(type)}:`,
choices: [
"(go back)",
"new",
"list instances",
"treat as instance",
],
});
if (choice === "(go back)") {
return;
}
if (choice === "new") {
const i = await createInstance(type);
if (i !== undefined) {
const dynamic = newDynamic(i)(type);
await proxyDynamic(dynamic);
}
}
if (choice === "list instances") {
await listInstances(type);
}
if (choice === "treat as instance") {
await listInstanceOptions(newDynamic(type)(Type));
}
return await listTypeOptions(type);
}
const listInstanceOptions = async dynamic => {
const choice = await select({
message: `instance ${pretty(dynamic)}:`,
choices: [
"(go back)",
"transform",
"get type",
],
});
if (choice === "(go back)") {
return;
}
if (choice === "transform") {
await transform(dynamic);
}
if (choice === "get type") {
await listTypeOptions(getType(dynamic));
}
return await listInstanceOptions(dynamic);
}
const listFunctionOptions = async dynamic => {
const choice = await select({
message: `function ${pretty(dynamic)}:`,
choices: [
"(go back)",
"call",
],
});
if (choice === "(go back)") {
return;
}
if (choice === "call") {
await call(dynamic);
}
}
const createInstance = async type => {
if (eqType(type)(Int)) {
const n = await number({
message: `enter an integer (leave empty to go back):`,
step: 1, // only integers
});
if (n === undefined) {
return;
}
return BigInt(n);
}
if (eqType(type)(Double)) {
const n = await number({
message: `enter a number (leave empty to go back):`,
step: 'any',
});
return n;
}
if (eqType(type)(Bool)) {
const b = await select({
message: `select:`,
choices: [
{value: false, name: 'false'},
{value: true, name: 'true'},
],
});
return b;
}
if (eqType(type)(UUID)) {
const descr = await input({message: "enter UUID description:"});
return descr + '__' + genUUID(16);
}
console.log("no prompt handler for creating new", prettyT(type));
};
const transform = async dynamic => {
const enabled = foldList(enabled => fun => {
try {
const outType = assignFn(getType(fun), getType(dynamic));
return [...enabled, {fun, outType}];
} catch (e) {
// console.log('warning:', e);
return enabled;
}
})([])(functions);
const choice = await select({
message: `select:`,
choices: [
"(go back)",
...enabled.map(({fun, outType}) => ({
value: {fun, outType},
name: `${getInst(fun).name} ${pretty(getInst(dynamic))} :: ${pretty(outType)}`,
})),
],
});
if (choice === "(go back)") {
return;
}
const {fun, outType} = choice;
const outValue = getInst(fun)(getInst(dynamic));
await proxyDynamic(newDynamic(outValue)(outType));
return transform(dynamic);
}
const call = async dynamic => {
const funType = getType(dynamic);
const allTypes = get(typeDict)(Type);
// compatible input types
const inTypes = foldSet(types => inType => {
try {
const outType = assignFn(funType, inType); // may throw
return [...types, {inType, outType}];
} catch (e) {
return types;
}
})([])(allTypes);
const choice = inTypes.length === 1
? inTypes[0]
: await select({
message: `types servable as input to ${pretty(funType)}:`,
choices: [
"(go back)",
...inTypes.map(({inType, outType}) => ({
value: {inType, outType},
name: pretty(inType),
})),
],
});
if (choice === "(go back)") {
return;
}
const inValue = await selectInstance(choice.inType, "select input value of type");
if (inValue === undefined) {
return;
}
const outValue = getInst(dynamic)(inValue);
await proxyDynamic(newDynamic(outValue)(choice.outType));
return call(dynamic);
}
await listInstances(Type);
// await transform(newDynamic(5)(Double));

View file

@ -1,449 +0,0 @@
import { select, number, input } from '@inquirer/prompts';
import { ModulePoint } from "../lib/point.js";
import { DefaultMap } from "../lib/util/defaultmap.js";
import { pretty } from '../lib/util/pretty.js';
import { isFunction } from '../structures/types.js';
import { ModuleStd } from '../lib/stdlib.js';
import { Double, GenericType, Int, UUID, Type } from "../primitives/types.js";
import { eqType } from '../primitives/type.js';
import { Top } from "../primitives/types.js";
import { assignFn, makeGeneric, onlyOccurring } from '../lib/generics/generics.js';
import { prettyT } from '../lib/util/pretty.js';
import { genUUID } from '../lib/util/random.js';
// import {emitKeypressEvents} from 'node:readline';
// // Configure readline to read from stdin
// emitKeypressEvents(process.stdin);
// process.stdin.setRawMode(true);
// console.log('Press any key (ESC to exit)...');
// process.stdin.on('keypress', (str, key) => {
// if (key.name === 'escape') {
// console.log('Escape key pressed!');
// process.exit();
// }
// });
const prettyIT = ({i, t}) => ({
strI: isType(i) ? prettyT(i) : pretty(i),
strT: prettyT(t),
// strI: pretty(i),
// strT: pretty(t),
});
const isType = i => i.typeVars || i.symbol;
// ctx.types.getdefault(i).has(Type)
// || ctx.types.getdefault(i).has(GenericType);
class Context {
constructor(mod) {
this.mod = mod;
this.types = new DefaultMap(() => new Set()); // instance to type
this.instances = new DefaultMap(() => new Set()); // type to instance
for (const {i, t} of mod.l) {
const {strI, strT} = prettyIT({i,t})
// console.log(strI, '::', strT);
this.types.getdefault(i, true).add(t);
this.types.getdefault(i, true).add(Top);
if (t.typeVars) {
// console.log("generic:", prettyT(t));
this.types.getdefault(t, true).add(GenericType);
}
else {
// console.log("non-generic:", prettyT(t));
this.types.getdefault(t, true).add(Type);
}
this.instances.getdefault(t, true).add(i);
this.instances.getdefault(Top, true).add(i);
}
const addIfFunctionType = (t, originalT, add) => {
if (isFunction(t)) {
for (const fn of this.instances.getdefault(originalT)) {
add(fn);
}
}
}
this.functions = [];
for (const type of this.instances.getdefault(Type)) {
addIfFunctionType(type, type, fn => this.functions.push({fn, type}));
}
this.genericFunctions = [];
for (const genericType of this.instances.getdefault(GenericType)) {
addIfFunctionType(genericType.type, genericType, fn => this.genericFunctions.push({fn, genericType}));
}
}
addToCtx({i, t}) {
return new Context({l:[
...this.mod.l,
{i, t},
]});
}
}
let ctx = new Context({l:[
...ModuleStd.l,
...ModulePoint.l,
]});
const toChoices = ([i, types]) => {
return [...types].map(t => {
const {strI, strT} = prettyIT({i, t});
return {
value: {i, t},
name: strI,
description: ` :: ${strT}`,
short: `${strI} :: ${strT}`,
};
});
};
async function topPrompt() {
const action = await select({
message: "What do you want to do?",
choices: [
"list all types",
"list all generic types",
"list all functions",
"list all",
],
});
if (action === "list all types") {
await listInstances(Type);
}
if (action === "list all generic types") {
await listInstances(GenericType);
}
if (action === "list all functions") {
await listAllFunctions();
}
if (action === "list all") {
await listAll();
}
return topPrompt();
}
async function listAllFunctions() {
const choice = await select({
message: "select function:",
choices: [
"(go back)",
...ctx.functions.flatMap(({fn, type}) => toChoices([fn, [type]])),
...ctx.genericFunctions.flatMap(({fn, genericType}) => toChoices([fn, [genericType]])),
],
});
if (choice === "(go back)") {
return;
}
const {i, t} = choice;
await functionOptions(i, t);
return listAllFunctions();
}
async function typeOptions(t, tt) {
const choice = await select({
message: `actions for type ${prettyT(t)} :: ${prettyT(tt)}`,
choices: [
"(go back)",
"create instance",
"list instances",
// "list outgoing functions",
// "list incoming functions",
"print raw",
"treat as instance",
],
});
if (choice === "(go back)") {
return;
}
else if (choice === "create instance") {
const i = await createInstance(t);
if (i !== undefined) {
ctx = ctx.addToCtx({i, t});
return instanceOrTypeOrFnOptions({i, t});
}
}
else if (choice === "list instances") {
await listInstances(t);
}
else if (choice === "print raw") {
console.log(pretty(t));
}
else if (choice === "treat as instance") {
await instanceOptions(t, tt)
}
else {
console.log("unimplemented:", choice);
}
return typeOptions(t, tt);
}
async function listAll() {
const choice = await select({
message: `all instances:`,
choices: [
"(go back)",
... [...ctx.types.m.keys()].flatMap(i => toChoices([i, ctx.types.getdefault(i)])),
],
})
if (choice === "(go back)") {
return;
}
return instanceOrTypeOrFnOptions(choice);
}
async function instanceOrTypeOrFnOptions({i, t}) {
if (t.typeVars) {
if (isFunction(t.type)) {
return functionOptions(i, t);
}
}
if (isFunction(t)) {
return functionOptions(i, t);
}
if (t === Type || t === GenericType) {
return typeOptions(i, t);
}
return instanceOptions(i,t);
}
async function listInstances(t) {
const choice = await select({
message: `instances of ${prettyT(t)}:`,
choices: [
"(go back)",
... [...ctx.instances.getdefault(t)].flatMap(i => toChoices([i, [t]])),
],
});
if (choice === "(go back)") {
return;
}
return instanceOrTypeOrFnOptions(choice);
}
async function listTypes(i) {
const {strI} = prettyIT({i,t:Type});
const choice = await select({
message: `type(s) of ${strI}:`,
choices: [
"(go back)",
... [...ctx.types.getdefault(i)].flatMap(t => toChoices([t, ctx.types.getdefault(t)])),
],
});
if (choice === "(go back)") {
return;
}
const {i: chosenType, t: typeOfChosenType} = choice;
await typeOptions(chosenType, typeOfChosenType);
return listTypes(i);
}
async function functionOptions(fn, fnT) {
const {strI, strT} = prettyIT({i: fn, t: fnT});
const choice = await select({
message: `actions for function ${strI} :: ${strT}`,
choices: [
"(go back)",
"call",
"treat as instance",
],
});
if (choice === "(go back)") {
return;
}
if (choice === "call") {
await callFunction(fn, fnT);
}
if (choice === "treat as instance") {
await instanceOptions(fn, fnT);
}
return functionOptions(fn, fnT);
}
async function createInstance(t) {
if (t.typeVars && t.typeVars.size === 0) {
t = t.type; // can treat as non-generic
}
if (eqType(t)(Int)) {
const n = await number({
message: `enter an integer (leave empty to go back):`,
step: 1, // only integers
});
if (n === undefined) {
return;
}
return BigInt(n);
}
else if (eqType(t)(Double)) {
const n = await number({
message: `enter a number (leave empty to go back):`,
step: 'any',
});
return n;
}
else if (eqType(t)(UUID)) {
console.log("Note: you are creating a new Symbol. Even if the description matches that of another symbol (e.g., \"Int\"), a new Symbol will be created that is unique and only equal to itself.");
const symbolDescr = await input({message: "enter symbol description:"});
return symbolDescr + '__' + genUUID(16);
}
else {
console.log("no prompt handler for creating new", prettyT(t));
}
}
async function callFunction(fn, fnT) {
const {strI, strT} = prettyIT({i: fn, t: fnT});
let choices;
let inType;
if (fnT.typeVars) {
// generic
choices = [...ctx.types.m.entries()].flatMap(([i, types]) => {
return [...types].flatMap(t => {
const genT = t.typeVars ? t : makeGeneric(() => t);
let assignedFnType;
try {
assignedFnType = assignFn(fnT, genT);
} catch (e) {
if (e.message.startsWith("cannot unify")) {
// console.warn(e);
return [];
}
throw e;
}
const assignedInType = onlyOccurring(assignedFnType.type.params[0], assignedFnType.typeVars);
if (assignedInType.typeVars.size > 0) {
return toChoices([i, [assignedInType]]);
}
else {
return toChoices([i, [assignedInType.type]]);
}
});
});
inType = onlyOccurring(fnT.type.params[0], fnT.typeVars)
}
else {
inType = fnT.params[0];
choices = [...ctx.instances.getdefault(inType)].flatMap(i => toChoices([i, [inType]]));
}
const choice = await select({
message: `select parameter of type ${prettyT(inType)} for function ${strI} :: ${strT}`,
choices: [
"(go back)",
"(new)",
...choices,
],
});
let i, t;
if (choice === "(go back)") {
return;
}
else if (choice === "(new)") {
i = await createInstance(inType);
t = inType;
if (i === undefined) {
return callFunction(fn, fnT);
}
}
else {
i = choice.i;
t = choice.t;
}
const genT = t.typeVars ? t : makeGeneric(() => t);
const genFnT = fnT.typeVars ? fnT : makeGeneric(() => fnT);
const assignedFnType = assignFn(genFnT, genT);
await apply(i, fn, assignedFnType);
return callFunction(fn, fnT);
}
async function instanceOptions(i,t) {
const {strI, strT} = prettyIT({i,t});
const choice = await select({
message: `actions for instance ${strI} :: ${strT}`,
choices: [
"(go back)",
"transform",
"list type(s)",
]
})
if (choice === "(go back)") {
return;
}
if (choice === "transform") {
await transform(i, t)
}
if (choice === "list type(s)") {
await listTypes(i);
}
return await instanceOptions(i,t);
}
async function transform(i, t) {
const {strI, strT} = prettyIT({i, t});
// console.log(ctx.functionsFrom.getdefault(t));
const genT = t.typeVars ? t : makeGeneric(() => t);
const choice = await select({
message: `choose transformation to perform on ${strI} :: ${strT}`,
choices: [
"(go back)",
...ctx.functions
.filter(({type}) => {
// console.log(type.params[0], t);
return eqType(type.params[0])(t)
})
.flatMap(({fn, type}) => toChoices([fn, [type]])),
...ctx.genericFunctions
.flatMap(({fn, genericType}) => {
let fnType;
try {
fnType = assignFn(genericType, genT);
} catch (e) {
if (e.message.startsWith("cannot unify")) {
// console.warn(e);
return [];
}
throw e;
}
return toChoices([fn, [fnType]]);
}),
],
});
if (choice === "(go back)") {
return;
}
const {i:fn,t:fnT} = choice;
await apply(i, fn, fnT);
return transform(i, t);
}
async function apply(i, fn, fnT) {
const result = fn(i);
let resultType;
if (fnT.typeVars) {
const res = onlyOccurring(fnT.type.params[1], fnT.typeVars);
resultType = res.typeVars.size > 0 ? res : res.type;
}
else {
resultType = fnT.params[1];
}
// update context with newly produced value
ctx = ctx
.addToCtx({i: result, t: resultType})
.addToCtx({i: resultType, t: resultType.typeVars ? GenericType : Type});
const {strI: strResult, strT: strResultType} = prettyIT({i: result, t: resultType});
console.log(`result = ${strResult} :: ${strResultType}`);
return instanceOrTypeOrFnOptions({i: result, t: resultType});
}
topPrompt();

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@ -1,7 +1,9 @@
import { inspect } from "node:util";
import { eqType, getSymbol } from "../primitives/type.js";
import { zip } from "../util/util.js";
import { pretty, prettyT } from '../util/pretty.js';
import { isTypeVar, TYPE_VARS } from "../primitives/typevars.js";
import { inspectType } from "../meta/type_constructor.js";
// helper for creating generic types
// for instance, the type:
@ -150,6 +152,7 @@ const __unify = (fType, aType, fStack=[], aStack=[]) => {
type: {
symbol: fType.symbol,
params: unifiedParams,
[inspect.custom]: inspectType,
},
};
};
@ -177,6 +180,7 @@ export const substitute = (type, substitutions, stack=[]) => {
}
return substitute(param, substitutions, [...stack, parent]);
}),
[inspect.custom]: inspectType,
};
};

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@ -2,11 +2,13 @@ import { getHumanReadableName } from "../primitives/symbol.js";
import { inspect } from "util";
import { prettyT } from "../util/pretty.js";
export const inspectType = function(depth, options, inspect){ return options.stylize(prettyT(this), 'date'); }
const __makeTypeConstructor = (symbol, nAry, params) => {
if (nAry === 0) {
return {
symbol, params,
[inspect.custom](depth, options, inspect){ return options.stylize(prettyT(this), 'null'); },
[inspect.custom]: inspectType,
};
}
// only for debugging, do we give the function a name

View file

@ -1,5 +1,6 @@
import { inspect } from "node:util";
import { assignFn } from "../generics/generics.js";
import { select } from "@inquirer/prompts";
function inspectDynamic(_depth, options, inspect) {
return `${inspect(this.i, options)} :: ${inspect(this.t, options)}`;

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@ -3,4 +3,4 @@ import { compareTypes } from "../compare/type.js";
export const getSymbol = type => type.symbol;
export const getParams = type => type.params;
export const eqType = t1 => t2 => compareTypes(t1, t2) === 0;
export const eqType = t1 => t2 => compareTypes(t1)(t2) === 0;

View file

@ -1,7 +1,3 @@
import { inspect } from "node:util";
export const unit = {
[inspect.custom](depth, options, inspect){ return '()'; }
};
export const unit = {};
export const eqUnit = _ => _ => true;

View file

@ -18,6 +18,13 @@ export const set = dict => key => value => new RBTreeWrapper(dict.tree.remove(ke
export const remove = dict => key => new RBTreeWrapper(dict.tree.remove(key), inspectDict);
export const length = dict => dict.tree.length;
export const fold = callback => initial => dict => {
let acc = initial;
for (const iter=dict.tree.begin; iter !== undefined && iter.valid; iter.next()) {
acc = callback(acc)(iter.key)(iter.value);
}
}
export const first = dict => dict.tree.begin;
export const last = dict => dict.tree.end;

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@ -1,6 +1,6 @@
import { makeTypeParser } from "../parser/type_parser.js";
import { makeTypeConstructor } from "../meta/type_constructor.js";
import { emptyDict, first, has, last, length, read, remove, set } from "./dict.js";
import { emptyDict, first, fold, has, last, length, read, remove, set } from "./dict.js";
import { newDynamic } from "../primitives/dynamic.js";
export const symbolDictIterator = 'DictIterator__d9d175b6bfd1283f00851a99787d0499';
@ -18,6 +18,7 @@ export const ModuleDict = [
newDynamic(set )(mkType("(a => b) -> a -> b -> (a => b) ")),
newDynamic(remove )(mkType("(a => b) -> a -> (a => b) ")),
newDynamic(length )(mkType("(a => b) -> Int ")),
newDynamic(fold )(mkType("(c -> a -> b -> c) -> c -> (a => b) -> c ")),
newDynamic(first )(mkType("(a => b) -> (a |=>| b) ")),
newDynamic(last )(mkType("(a => b) -> (a |=>| b) ")),
newDynamic(read )(mkType("(a |=>| b) -> (Unit + ((a*b) * (a |=>| b)))")),

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@ -7,7 +7,7 @@ export const push = ls => elem => ls.concat([elem]);
export const pop = ls => ls.pop();
export const map = ls => fn => ls.map(elem => fn(elem));
export const length = ls => ls.length;
export const fold = ls => callback => initial => {
export const fold = callback => initial => ls => {
let acc = initial;
for (let i=0; i<ls.length; i++) {
acc = callback(acc)(ls[i]);

View file

@ -12,5 +12,5 @@ export const ModuleList = [
newDynamic(pop )(mkType("[a] -> a")),
newDynamic(map )(mkType("[a] -> (a -> b) -> [b]")),
newDynamic(length )(mkType("[a] -> Int")),
newDynamic(fold )(mkType("[a] -> (b -> a -> b) -> b -> b")),
newDynamic(fold )(mkType("(b -> a -> b) -> b -> [a] -> b")),
];

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@ -19,11 +19,10 @@ export const add = set => key => set.tree.get(key) === true ? set : new RBTreeWr
export const remove = set => key => new RBTreeWrapper(set.tree.remove(key), inspectSet);
export const length = set => set.tree.length;
export const fold = set => callback => initial => {
export const fold = callback => initial => set => {
let acc = initial;
let iter = set.tree.begin;
while (iter !== undefined && iter.valid) {
acc = callback(acc, iter.key);
for (const iter=set.tree.begin; iter !== undefined && iter.valid; iter.next()) {
acc = callback(acc)(iter.key);
}
return acc;
};

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@ -8,6 +8,7 @@ export const symbolSetIterator = 'SetIterator__f6b0ddd78ed41c58e5a442f2681da011'
const setIterator = makeTypeConstructor(symbolSetIterator)(1);
const mkType = makeTypeParser({
// extra syntax to represent a set iterator:
extraBracketOperators: [['<', ['>', setIterator]]],
});
@ -17,7 +18,7 @@ export const ModuleSet = [
newDynamic(add )(mkType("{a} -> a -> {a}" )),
newDynamic(remove )(mkType("{a} -> a -> {a}" )),
newDynamic(length )(mkType("{a} -> Int" )),
newDynamic(fold )(mkType("{a} -> (b -> a -> b) -> b")),
newDynamic(fold )(mkType("(b -> a -> b) -> b -> {a} -> b")),
newDynamic(first )(mkType("{a} -> <a>" )),
newDynamic(last )(mkType("{a} -> <a>" )),
newDynamic(read )(mkType("<a> -> (Unit + (a * <a>))" )),