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simplify: no distinction between generic types and 'normal' types.

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This commit is contained in:
Joeri Exelmans 2025-05-08 16:58:07 +02:00
parent b4826605af
commit a664ddac8a
27 changed files with 535 additions and 360 deletions
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33
lib/parser/type_parser.js
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@ -1,7 +1,10 @@
// A simple, hacked-together recursive parser for types.
import { Bool, Char, Double, Int, SymbolT, Type, Unit } from "../primitives/primitive_types.js";
import { Bool, Char, Double, Int, UUID, Type, Unit } from "../primitives/primitive_types.js";
import { Dynamic } from "../primitives/primitive_types.js";
import { getHumanReadableName } from "../primitives/symbol.js";
import { getSymbol } from "../primitives/type.js";
import { TYPE_VARS } from "../primitives/typevars.js";
import { dictType, fnType, lsType, prodType, sumType } from "../structures/type_constructors.js";
import { setType } from "../structures/type_constructors.js";
@ -11,12 +14,6 @@ export const makeTypeParser = ({
extraBracketOperators=[],
extraInfixOperators=[],
}) => {
const a = Symbol('a');
const b = Symbol('b');
const c = Symbol('c');
const d = Symbol('d');
const e = Symbol('e');
const primitives = new Map([
['Int', Int],
['Double', Double],
@ -27,12 +24,9 @@ export const makeTypeParser = ({
['Unit', Unit],
['Type', Type],
['Dynamic', Dynamic],
['SymbolT', SymbolT],
['a', a],
['b', b],
['c', c],
['d', d],
['e', e],
['UUID', UUID],
...TYPE_VARS.map(type => [getHumanReadableName(getSymbol(type)), type]),
...extraPrimitives,
]);
@ -41,11 +35,7 @@ export const makeTypeParser = ({
['(', [')', null]],
['[', [']', lsType]],
['{', ['}', setType]],
// can only occur at beginning
// we use these to extract the type variables
['∀', [':', null]],
...extraBracketOperators,
]);
@ -187,13 +177,6 @@ export const makeTypeParser = ({
const parse = expr => {
const tokens = tokenize(expr);
if (tokens[0] === '∀') {
// generic type
const [typeVarTokens, _, rest] = consumeGroup(tokens);
const typeVars = [].concat(__parse(typeVarTokens))
const type = __parse(rest);
return { typeVars, type };
}
return __parse(tokens);
}