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Report invalid extension types during canonicalization

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Closes #2541
This commit is contained in:
ayazhafiz 2022-03-06 12:06:17 -05:00
parent 37ab632ccd
commit eed7e3df71
4 changed files with 182 additions and 28 deletions
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33
reporting/src/error/canonicalize.rs
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@ -1,7 +1,9 @@
use roc_collections::all::MutSet;
use roc_module::ident::{Ident, Lowercase, ModuleName};
use roc_problem::can::PrecedenceProblem::BothNonAssociative;
use roc_problem::can::{BadPattern, FloatErrorKind, IntErrorKind, Problem, RuntimeError};
use roc_problem::can::{
BadPattern, ExtensionTypeKind, FloatErrorKind, IntErrorKind, Problem, RuntimeError,
};
use roc_region::all::{LineColumn, LineColumnRegion, LineInfo, Loc, Region};
use std::path::PathBuf;
@ -33,6 +35,7 @@ const OPAQUE_NOT_DEFINED: &str = "OPAQUE TYPE NOT DEFINED";
const OPAQUE_DECLARED_OUTSIDE_SCOPE: &str = "OPAQUE TYPE DECLARED OUTSIDE SCOPE";
const OPAQUE_NOT_APPLIED: &str = "OPAQUE TYPE NOT APPLIED";
const OPAQUE_OVER_APPLIED: &str = "OPAQUE TYPE APPLIED TO TOO MANY ARGS";
const INVALID_EXTENSION_TYPE: &str = "INVALID_EXTENSION_TYPE";
pub fn can_problem<'b>(
alloc: &'b RocDocAllocator<'b>,
@ -492,6 +495,34 @@ pub fn can_problem<'b>(
title = NESTED_DATATYPE.to_string();
severity = Severity::RuntimeError;
}
Problem::InvalidExtensionType { region, kind } => {
let (kind_str, can_only_contain) = match kind {
ExtensionTypeKind::Record => ("record", "a type variable or another record"),
ExtensionTypeKind::TagUnion => {
("tag union", "a type variable or another tag union")
}
};
doc = alloc.stack(vec![
alloc.concat(vec![
alloc.reflow("This "),
alloc.text(kind_str),
alloc.reflow(" extension type is invalid:"),
]),
alloc.region(lines.convert_region(region)),
alloc.concat(vec![
alloc.note("A "),
alloc.reflow(kind_str),
alloc.reflow(" extension variable can only contain "),
alloc.reflow(can_only_contain),
alloc.reflow("."),
]),
]);
title = INVALID_EXTENSION_TYPE.to_string();
severity = Severity::RuntimeError;
}
};
Report {