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parse more stuff

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This commit is contained in:
nora 2023-07-23 14:39:09 +02:00
parent 4e95bc05a3
commit cc2a9aeca8
5 changed files with 206 additions and 40 deletions
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48
src/ast.ts
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@ -13,16 +13,18 @@ export type FunctionDef = {
name: string;
args: FunctionArg[];
body: Expr;
returnType?: Type;
};
export type FunctionArg = {
name: string;
type: Type;
span: Span;
};
export type ExprKind =
| { kind: "empty" }
| { kind: "let"; name: string; rhs: Expr; after: Expr }
| { kind: "let"; name: string; type?: Type; rhs: Expr; after: Expr }
| { kind: "block"; exprs: Expr[] }
| {
kind: "literal";
@ -39,15 +41,21 @@ export type ExprKind =
rhs: Expr;
}
| {
kind: "unary",
unaryKind: UnaryKind,
rhs: Expr,
}
kind: "unary";
unaryKind: UnaryKind;
rhs: Expr;
}
| {
kind: "call",
lhs: Expr,
args: Expr[],
};
kind: "call";
lhs: Expr;
args: Expr[];
}
| {
kind: "if";
cond: Expr;
then: Expr;
else?: Expr;
};
export type Expr = ExprKind & {
span: Span;
@ -112,5 +120,23 @@ export function binaryExprPrecedenceClass(k: BinaryKind): number {
return cls;
}
export type UnaryKind = '!' | '-';
export const UNARY_KINDS: UnaryKind[] = ['!', '-'];
export type UnaryKind = "!" | "-";
export const UNARY_KINDS: UnaryKind[] = ["!", "-"];
export type TypeKind =
| {
kind: "ident";
value: string;
}
| {
kind: "list";
elem: Type;
}
| {
kind: "tuple";
elems: Type[];
};
export type Type = TypeKind & {
span: Span;
};