bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
future proof structure
Browse Source
Aleksey Kladov 2021-10-09
parent 5ecda80 · commit 8e90034
Diffstat
-rw-r--r--crates/hir_def/src/macro_expansion_tests.rs138
-rw-r--r--crates/hir_def/src/macro_expansion_tests/mbe.rs137
-rw-r--r--crates/mbe/src/lib.rs3
3 files changed, 143 insertions, 135 deletions
diff --git a/crates/hir_def/src/macro_expansion_tests.rs b/crates/hir_def/src/macro_expansion_tests.rs
index a5e941454c..76bd0299fb 100644
--- a/crates/hir_def/src/macro_expansion_tests.rs
+++ b/crates/hir_def/src/macro_expansion_tests.rs
@@ -9,10 +9,12 @@
//! write unit-tests (in fact, we used to do that), but that makes tests brittle
//! and harder to understand.
+mod mbe;
+
use std::{iter, ops::Range};
use base_db::{fixture::WithFixture, SourceDatabase};
-use expect_test::{expect, Expect};
+use expect_test::Expect;
use hir_expand::{db::AstDatabase, InFile, MacroFile};
use stdx::format_to;
use syntax::{
@@ -113,137 +115,3 @@ fn pretty_print_macro_expansion(expn: SyntaxNode) -> String {
}
res
}
-
-#[test]
-fn wrong_nesting_level() {
- check(
- r#"
-macro_rules! m {
- ($($i:ident);*) => ($i)
-}
-m!{a}
-"#,
- expect![[r#"
-macro_rules! m {
- ($($i:ident);*) => ($i)
-}
-/* error: expected simple binding, found nested binding `i` */
-"#]],
- );
-}
-
-#[test]
-fn expansion_does_not_parse_as_expression() {
- check(
- r#"
-macro_rules! stmts {
- () => { let _ = 0; }
-}
-
-fn f() { let _ = stmts!(); }
-"#,
- expect![[r#"
-macro_rules! stmts {
- () => { let _ = 0; }
-}
-
-fn f() { let _ = /* error: could not convert tokens */; }
-"#]],
- )
-}
-
-#[test]
-fn round_trips_compound_tokens() {
- check(
- r#"
-macro_rules! m {
- () => { type qual: ::T = qual::T; }
-}
-m!();
-"#,
- expect![[r#"
-macro_rules! m {
- () => { type qual: ::T = qual::T; }
-}
-type qual: ::T = qual::T;
-"#]],
- )
-}
-
-#[test]
-fn round_trips_literals() {
- check(
- r#"
-macro_rules! m {
- () => {
- let _ = 'c';
- let _ = 1000;
- let _ = 12E+99_f64;
- let _ = "rust1";
- let _ = -92;
- }
-}
-fn f() {
- m!()
-}
-"#,
- expect![[r#"
-macro_rules! m {
- () => {
- let _ = 'c';
- let _ = 1000;
- let _ = 12E+99_f64;
- let _ = "rust1";
- let _ = -92;
- }
-}
-fn f() {
- let_ = 'c';
- let_ = 1000;
- let_ = 12E+99_f64;
- let_ = "rust1";
- let_ = -92;
-}
-"#]],
- );
-}
-
-#[test]
-fn broken_parenthesis_sequence() {
- check(
- r#"
-macro_rules! m1 { ($x:ident) => { ($x } }
-macro_rules! m2 { ($x:ident) => {} }
-
-m1!();
-m2!(x
-"#,
- expect![[r#"
-macro_rules! m1 { ($x:ident) => { ($x } }
-macro_rules! m2 { ($x:ident) => {} }
-
-/* error: Failed to find macro definition */
-/* error: Failed to lower macro args to token tree */
-"#]],
- )
-}
-
-#[test]
-fn unary_minus_is_a_literal() {
- check(
- r#"
-macro_rules! m { ($x:literal) => (literal!()); ($x:tt) => (not_a_literal!()); }
-m!(92);
-m!(-92);
-m!(-9.2);
-m!(--92);
-"#,
- expect![[r#"
-macro_rules! m { ($x:literal) => (literal!()); ($x:tt) => (not_a_literal!()); }
-literal!()
-literal!()
-literal!()
-/* error: leftover tokens */not_a_literal!()
-"#]],
- )
-}
diff --git a/crates/hir_def/src/macro_expansion_tests/mbe.rs b/crates/hir_def/src/macro_expansion_tests/mbe.rs
new file mode 100644
index 0000000000..ae044661f3
--- /dev/null
+++ b/crates/hir_def/src/macro_expansion_tests/mbe.rs
@@ -0,0 +1,137 @@
+use expect_test::expect;
+
+use crate::macro_expansion_tests::check;
+
+#[test]
+fn wrong_nesting_level() {
+ check(
+ r#"
+macro_rules! m {
+ ($($i:ident);*) => ($i)
+}
+m!{a}
+"#,
+ expect![[r#"
+macro_rules! m {
+ ($($i:ident);*) => ($i)
+}
+/* error: expected simple binding, found nested binding `i` */
+"#]],
+ );
+}
+
+#[test]
+fn expansion_does_not_parse_as_expression() {
+ check(
+ r#"
+macro_rules! stmts {
+ () => { let _ = 0; }
+}
+
+fn f() { let _ = stmts!(); }
+"#,
+ expect![[r#"
+macro_rules! stmts {
+ () => { let _ = 0; }
+}
+
+fn f() { let _ = /* error: could not convert tokens */; }
+"#]],
+ )
+}
+
+#[test]
+fn round_trips_compound_tokens() {
+ check(
+ r#"
+macro_rules! m {
+ () => { type qual: ::T = qual::T; }
+}
+m!();
+"#,
+ expect![[r#"
+macro_rules! m {
+ () => { type qual: ::T = qual::T; }
+}
+type qual: ::T = qual::T;
+"#]],
+ )
+}
+
+#[test]
+fn round_trips_literals() {
+ check(
+ r#"
+macro_rules! m {
+ () => {
+ let _ = 'c';
+ let _ = 1000;
+ let _ = 12E+99_f64;
+ let _ = "rust1";
+ let _ = -92;
+ }
+}
+fn f() {
+ m!()
+}
+"#,
+ expect![[r#"
+macro_rules! m {
+ () => {
+ let _ = 'c';
+ let _ = 1000;
+ let _ = 12E+99_f64;
+ let _ = "rust1";
+ let _ = -92;
+ }
+}
+fn f() {
+ let_ = 'c';
+ let_ = 1000;
+ let_ = 12E+99_f64;
+ let_ = "rust1";
+ let_ = -92;
+}
+"#]],
+ );
+}
+
+#[test]
+fn broken_parenthesis_sequence() {
+ check(
+ r#"
+macro_rules! m1 { ($x:ident) => { ($x } }
+macro_rules! m2 { ($x:ident) => {} }
+
+m1!();
+m2!(x
+"#,
+ expect![[r#"
+macro_rules! m1 { ($x:ident) => { ($x } }
+macro_rules! m2 { ($x:ident) => {} }
+
+/* error: Failed to find macro definition */
+/* error: Failed to lower macro args to token tree */
+"#]],
+ )
+}
+
+#[test]
+fn unary_minus_is_a_literal() {
+ check(
+ r#"
+macro_rules! m { ($x:literal) => (literal!()); ($x:tt) => (not_a_literal!()); }
+m!(92);
+m!(-92);
+m!(-9.2);
+m!(--92);
+"#,
+ expect![[r#"
+macro_rules! m { ($x:literal) => (literal!()); ($x:tt) => (not_a_literal!()); }
+literal!()
+literal!()
+literal!()
+/* error: leftover tokens */not_a_literal!()
+"#]],
+ )
+}
diff --git a/crates/mbe/src/lib.rs b/crates/mbe/src/lib.rs
index 8470ea0aaf..bc407e4171 100644
--- a/crates/mbe/src/lib.rs
+++ b/crates/mbe/src/lib.rs
@@ -2,6 +2,9 @@
//! `macro_rules` macros. It uses `TokenTree` (from `tt` package) as the
//! interface, although it contains some code to bridge `SyntaxNode`s and
//! `TokenTree`s as well!
+//!
+//! The tes for this functionality live in another crate:
+//! `hir_def::macro_expansion_tests::mbe`.
mod parser;
mod expander;