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sva_core/
lint_code.rs

1// Concern: the `lint` codes a caller branches on, and the remediation each names | Non-concern: finding a violation (sva-cli lint.rs), framing one (cli_error.rs) | IO: (LintCode) -> tag, help
2
3/// Every shape `lint` reports. A caller dispatches on the tag, so the tag is the contract and
4/// the variant is how this workspace spells it.
5#[derive(Clone, Copy, Debug, PartialEq, Eq)]
6pub enum LintCode {
7    GridRowsPerBar,
8    MissingComment,
9    MalformedComment,
10    MultilineComment,
11    LongCommentBlock,
12    LongExpressionBody,
13    LiteralSampleRate,
14    Arity,
15    KeyIsNotAPitch,
16}
17
18impl LintCode {
19    pub const ALL: &'static [LintCode] = &[
20        LintCode::GridRowsPerBar,
21        LintCode::MissingComment,
22        LintCode::MalformedComment,
23        LintCode::MultilineComment,
24        LintCode::LongCommentBlock,
25        LintCode::LongExpressionBody,
26        LintCode::LiteralSampleRate,
27        LintCode::Arity,
28        LintCode::KeyIsNotAPitch,
29    ];
30
31    pub fn code_str(self) -> &'static str {
32        match self {
33            LintCode::GridRowsPerBar => "grid-rows-per-bar",
34            LintCode::MissingComment => "missing-comment",
35            LintCode::MalformedComment => "malformed-comment",
36            LintCode::MultilineComment => "multiline-comment",
37            LintCode::LongCommentBlock => "long-comment-block",
38            LintCode::LongExpressionBody => "long-expression-body",
39            LintCode::LiteralSampleRate => "literal-sample-rate",
40            LintCode::Arity => "arity",
41            LintCode::KeyIsNotAPitch => "key-is-not-a-pitch",
42        }
43    }
44
45    /// Exhaustive, so a code cannot be added without saying what to write instead of it.
46    pub fn help(self) -> &'static str {
47        match self {
48            LintCode::GridRowsPerBar => {
49                "make the row count a whole multiple of the filename's bar span, or restate the span"
50            }
51            LintCode::MissingComment | LintCode::MalformedComment => {
52                "give the node one `;`-comment line: `; Models: ... | Neglects: ... | IO: ... -> ... \
53                 | Tags: ...`"
54            }
55            LintCode::MultilineComment => "fold the `;`-comment onto one line",
56            LintCode::LongCommentBlock => {
57                "move the prose out of the node and keep the one `;`-comment line"
58            }
59            LintCode::LongExpressionBody => "split the expression across nodes and `@ref` them",
60            LintCode::LiteralSampleRate => {
61                "write the sample period as `sp` and let the render choose its rate"
62            }
63            LintCode::Arity => "give the call what its builtin reads, as `sva-cli builtins` lists",
64            LintCode::KeyIsNotAPitch => {
65                "hold one note name or a number of hertz in `variables/key`"
66            }
67        }
68    }
69}