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Improve type mismatch messages

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This commit is contained in:
Shunsuke Shibayama 2022-11-25 17:20:39 +09:00
parent 14bb674068
commit d26909c317
7 changed files with 50 additions and 27 deletions
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5
compiler/erg_compiler/error.rs
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@ -16,9 +16,9 @@ use erg_common::{
use erg_parser::error::{ParserRunnerError, ParserRunnerErrors};
use crate::ty::{Predicate, Type};
use crate::context::Context;
use crate::hir::{Expr, Identifier, Signature};
use crate::ty::{Predicate, Type};
pub fn ordinal_num(n: usize) -> String {
match n.to_string().chars().last().unwrap() {
@ -972,6 +972,7 @@ passed keyword args: {kw_args_len}"
caused_by: String,
hint: Option<String>,
) -> Self {
let hint = hint.or_else(|| Context::get_type_mismatch_hint(trait_, class));
Self::new(
ErrorCore::new(
vec![SubMessage::ambiguous_new(loc, vec![], hint)],