Merge #11152

11152: internal: add more tests for entry points r=matklad a=matklad

bors r+
🤖

Co-authored-by: Aleksey Kladov <[email protected]>

Author: bors[bot]

crates/hir_def/src/macro_expansion_tests/mbe/matching.rs

@@ -103,3 +103,22 @@ stringify!(;
 "#]],
     );
 }
+
+#[test]
+fn range_patterns() {
+    // FIXME: rustc thinks there are three patterns here, not one.
+    check(
+        r#"
+macro_rules! m {
+    ($($p:pat)*) => (stringify!($($p |)*);)
+}
+m!(.. .. ..);
+"#,
+        expect![[r#"
+macro_rules! m {
+    ($($p:pat)*) => (stringify!($($p |)*);)
+}
+stringify!(.. .. ..|);
+"#]],
+    );
+}

crates/parser/src/tests/entries.rs

@@ -21,12 +21,48 @@ fn stmt() {
     check_prefix(PrefixEntryPoint::Stmt, "92; fn", "92");
     check_prefix(PrefixEntryPoint::Stmt, "let _ = 92; 1", "let _ = 92");
     check_prefix(PrefixEntryPoint::Stmt, "pub fn f() {} = 92", "pub fn f() {}");
+    check_prefix(PrefixEntryPoint::Stmt, "struct S;;", "struct S;");
+    check_prefix(PrefixEntryPoint::Stmt, "fn f() {};", "fn f() {}");
     check_prefix(PrefixEntryPoint::Stmt, ";;;", ";");
     check_prefix(PrefixEntryPoint::Stmt, "+", "+");
     check_prefix(PrefixEntryPoint::Stmt, "@", "@");
     check_prefix(PrefixEntryPoint::Stmt, "loop {} - 1", "loop {}");
 }
 
+#[test]
+fn pat() {
+    check_prefix(PrefixEntryPoint::Pat, "x y", "x");
+    check_prefix(PrefixEntryPoint::Pat, "fn f() {}", "fn");
+    // FIXME: This one is wrong, we should consume only one pattern.
+    check_prefix(PrefixEntryPoint::Pat, ".. ..", ".. ..");
+}
+
+#[test]
+fn ty() {
+    check_prefix(PrefixEntryPoint::Ty, "fn() foo", "fn()");
+    check_prefix(PrefixEntryPoint::Ty, "Clone + Copy + fn", "Clone + Copy +");
+    check_prefix(PrefixEntryPoint::Ty, "struct f", "struct");
+}
+
+#[test]
+fn expr() {
+    check_prefix(PrefixEntryPoint::Expr, "92 92", "92");
+    check_prefix(PrefixEntryPoint::Expr, "+1", "+");
+    check_prefix(PrefixEntryPoint::Expr, "-1", "-1");
+    check_prefix(PrefixEntryPoint::Expr, "fn foo() {}", "fn");
+    check_prefix(PrefixEntryPoint::Expr, "#[attr] ()", "#[attr] ()");
+}
+
+#[test]
+fn path() {
+    check_prefix(PrefixEntryPoint::Path, "foo::bar baz", "foo::bar");
+    check_prefix(PrefixEntryPoint::Path, "foo::<> baz", "foo::<>");
+    check_prefix(PrefixEntryPoint::Path, "foo<> baz", "foo<>");
+    check_prefix(PrefixEntryPoint::Path, "Fn() -> i32?", "Fn() -> i32");
+    // FIXME: this shouldn't be accepted as path actually.
+    check_prefix(PrefixEntryPoint::Path, "<_>::foo", "<_>::foo");
+}
+
 fn check_prefix(entry: PrefixEntryPoint, input: &str, prefix: &str) {
     let lexed = LexedStr::new(input);
     let input = lexed.to_input();