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start structs

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This commit is contained in:
nora 2023-07-31 23:39:52 +02:00
parent 924236532c
commit b0b92dae0f
8 changed files with 331 additions and 30 deletions
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16
src/typeck.ts
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@ -9,7 +9,6 @@ import {
ExprUnary,
foldAst,
Folder,
Ident,
IdentWithRes,
ItemId,
LOGICAL_KINDS,
@ -30,6 +29,7 @@ import {
TyStruct,
Item,
findCrateItem,
StructLiteralField,
} from "./ast";
import { CompilerError, Span } from "./error";
import { printTy } from "./printer";
@ -943,8 +943,8 @@ export function checkBody(
};
}
case "structLiteral": {
const fields = expr.fields.map<[Ident, Expr<Typecked>]>(
([name, expr]) => [name, this.expr(expr)]
const fields = expr.fields.map<StructLiteralField<Typecked>>(
({ name, expr }) => ({ name, expr: this.expr(expr) })
);
const structTy = typeOf(expr.name.res, expr.name.span);
@ -958,16 +958,20 @@ export function checkBody(
const assignedFields = new Set();
fields.forEach(([name, field]) => {
const fieldTy = structTy.fields.find((def) => def[0] === name.name);
if (!fieldTy) {
fields.forEach(({ name, expr: field }, i) => {
const fieldIdx = structTy.fields.findIndex(
(def) => def[0] === name.name
);
if (fieldIdx == -1) {
throw new CompilerError(
`field ${name.name} doesn't exist on type ${expr.name.name}`,
name.span
);
}
const fieldTy = structTy.fields[fieldIdx];
infcx.assign(fieldTy[1], field.ty, field.span);
assignedFields.add(name.name);
fields[i].fieldIdx = fieldIdx;
});
const missing: string[] = [];