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Proper span representation with syntax context

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This commit is contained in:
Lukas Wirth 2023-10-06 14:47:11 +02:00
parent 890eb17b4e
commit e36b3f7b8c
16 changed files with 414 additions and 470 deletions
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37
crates/cfg/src/tests.rs
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@ -2,20 +2,30 @@ use arbitrary::{Arbitrary, Unstructured};
use expect_test::{expect, Expect};
use mbe::syntax_node_to_token_tree;
use syntax::{ast, AstNode};
use tt::Span;
use tt::{SpanAnchor, SyntaxContext};
use crate::{CfgAtom, CfgExpr, CfgOptions, DnfExpr};
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
struct DummyFile;
impl Span for DummyFile {
impl SpanAnchor for DummyFile {
const DUMMY: Self = DummyFile;
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
struct DummyCtx;
impl SyntaxContext for DummyCtx {
const DUMMY: Self = DummyCtx;
}
fn assert_parse_result(input: &str, expected: CfgExpr) {
let source_file = ast::SourceFile::parse(input).ok().unwrap();
let tt = source_file.syntax().descendants().find_map(ast::TokenTree::cast).unwrap();
let tt = syntax_node_to_token_tree(tt.syntax(), DummyFile, 0.into(), &Default::default());
let tt = syntax_node_to_token_tree::<_, DummyCtx>(
tt.syntax(),
DummyFile,
0.into(),
&Default::default(),
);
let cfg = CfgExpr::parse(&tt);
assert_eq!(cfg, expected);
}
@ -23,7 +33,12 @@ fn assert_parse_result(input: &str, expected: CfgExpr) {
fn check_dnf(input: &str, expect: Expect) {
let source_file = ast::SourceFile::parse(input).ok().unwrap();
let tt = source_file.syntax().descendants().find_map(ast::TokenTree::cast).unwrap();
let tt = syntax_node_to_token_tree(tt.syntax(), DummyFile, 0.into(), &Default::default());
let tt = syntax_node_to_token_tree::<_, DummyCtx>(
tt.syntax(),
DummyFile,
0.into(),
&Default::default(),
);
let cfg = CfgExpr::parse(&tt);
let actual = format!("#![cfg({})]", DnfExpr::new(cfg));
expect.assert_eq(&actual);
@ -32,7 +47,12 @@ fn check_dnf(input: &str, expect: Expect) {
fn check_why_inactive(input: &str, opts: &CfgOptions, expect: Expect) {
let source_file = ast::SourceFile::parse(input).ok().unwrap();
let tt = source_file.syntax().descendants().find_map(ast::TokenTree::cast).unwrap();
let tt = syntax_node_to_token_tree(tt.syntax(), DummyFile, 0.into(), &Default::default());
let tt = syntax_node_to_token_tree::<_, DummyCtx>(
tt.syntax(),
DummyFile,
0.into(),
&Default::default(),
);
let cfg = CfgExpr::parse(&tt);
let dnf = DnfExpr::new(cfg);
let why_inactive = dnf.why_inactive(opts).unwrap().to_string();
@ -43,7 +63,12 @@ fn check_why_inactive(input: &str, opts: &CfgOptions, expect: Expect) {
fn check_enable_hints(input: &str, opts: &CfgOptions, expected_hints: &[&str]) {
let source_file = ast::SourceFile::parse(input).ok().unwrap();
let tt = source_file.syntax().descendants().find_map(ast::TokenTree::cast).unwrap();
let tt = syntax_node_to_token_tree(tt.syntax(), DummyFile, 0.into(), &Default::default());
let tt = syntax_node_to_token_tree::<_, DummyCtx>(
tt.syntax(),
DummyFile,
0.into(),
&Default::default(),
);
let cfg = CfgExpr::parse(&tt);
let dnf = DnfExpr::new(cfg);
let hints = dnf.compute_enable_hints(opts).map(|diff| diff.to_string()).collect::<Vec<_>>();