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feat: suggest lambda operator

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Luca Cervello 2022-10-10 12:43:38 +02:00
parent 8ada13cc3b
commit 1c0b1ba0af
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2 changed files with 12 additions and 4 deletions
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10
crates/reporting/src/error/parse.rs
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@ -246,6 +246,16 @@ fn to_expr_report<'a>(
Context::InNode(Node::WhenBranch, _pos, _) => {
return to_unexpected_arrow_report(alloc, lines, filename, *pos, start);
}
Context::InDef(_pos) => {
vec![alloc.stack([
alloc.concat([alloc.reflow(
"Did you mean to define a function? Condider defining this as",
)]),
alloc.vcat(vec![alloc.text("id = \\x -> x")]),
])]
}
_ => {
vec![alloc.stack([
alloc.concat([

6
crates/reporting/tests/test_reporting.rs
View file

@ -5653,11 +5653,9 @@ All branches in an `if` must have the same type!
4│ main = 5 -> 3
^^
The arrow -> is only used to define cases in a `when`.
Did you mean to define a function? Condider defining this as
when color is
Red -> "stop!"
Green -> "go!"
id = \x -> x
"###
);