10 files changed, 230 insertions, 95 deletions

diff --git a/crates/ra_assists/src/assists/merge_match_arms.rs b/crates/ra_assists/src/assists/merge_match_arms.rs
index aca391155..64c9379da 100644
--- a/crates/ra_assists/src/assists/merge_match_arms.rs
+++ b/crates/ra_assists/src/assists/merge_match_arms.rs
@@ -1,6 +1,12 @@
-use crate::{Assist, AssistCtx, AssistId, TextRange, TextUnit};
+use std::iter::successors;
+
 use hir::db::HirDatabase;
-use ra_syntax::ast::{AstNode, MatchArm};
+use ra_syntax::{
+    ast::{self, AstNode},
+    Direction, TextUnit,
+};
+
+use crate::{Assist, AssistCtx, AssistId, TextRange};
 
 // Assist: merge_match_arms
 //
@@ -27,62 +33,80 @@ use ra_syntax::ast::{AstNode, MatchArm};
 // }
 // ```
 pub(crate) fn merge_match_arms(ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> {
-    let current_arm = ctx.find_node_at_offset::<MatchArm>()?;
-
-    // We check if the following match arm matches this one. We could, but don't,
-    // compare to the previous match arm as well.
-    let next = current_arm.syntax().next_sibling();
-    let next_arm = MatchArm::cast(next?)?;
-
+    let current_arm = ctx.find_node_at_offset::<ast::MatchArm>()?;
     // Don't try to handle arms with guards for now - can add support for this later
-    if current_arm.guard().is_some() || next_arm.guard().is_some() {
+    if current_arm.guard().is_some() {
         return None;
     }
-
     let current_expr = current_arm.expr()?;
-    let next_expr = next_arm.expr()?;
+    let current_text_range = current_arm.syntax().text_range();
 
-    // Check for match arm equality by comparing lengths and then string contents
-    if current_expr.syntax().text_range().len() != next_expr.syntax().text_range().len() {
-        return None;
+    enum CursorPos {
+        InExpr(TextUnit),
+        InPat(TextUnit),
     }
-    if current_expr.syntax().text() != next_expr.syntax().text() {
+    let cursor_pos = ctx.frange.range.start();
+    let cursor_pos = if current_expr.syntax().text_range().contains(cursor_pos) {
+        CursorPos::InExpr(current_text_range.end() - cursor_pos)
+    } else {
+        CursorPos::InPat(cursor_pos)
+    };
+
+    // We check if the following match arms match this one. We could, but don't,
+    // compare to the previous match arm as well.
+    let arms_to_merge = successors(Some(current_arm), next_arm)
+        .take_while(|arm| {
+            if arm.guard().is_some() {
+                return false;
+            }
+            match arm.expr() {
+                Some(expr) => expr.syntax().text() == current_expr.syntax().text(),
+                None => false,
+            }
+        })
+        .collect::<Vec<_>>();
+
+    if arms_to_merge.len() <= 1 {
         return None;
     }
 
-    let cursor_to_end = current_arm.syntax().text_range().end() - ctx.frange.range.start();
-
     ctx.add_assist(AssistId("merge_match_arms"), "Merge match arms", |edit| {
-        fn contains_placeholder(a: &MatchArm) -> bool {
-            a.pats().any(|x| match x {
-                ra_syntax::ast::Pat::PlaceholderPat(..) => true,
-                _ => false,
-            })
-        }
-
-        let pats = if contains_placeholder(&current_arm) || contains_placeholder(&next_arm) {
+        let pats = if arms_to_merge.iter().any(contains_placeholder) {
             "_".into()
         } else {
-            let ps: Vec<String> = current_arm
-                .pats()
+            arms_to_merge
+                .iter()
+                .flat_map(ast::MatchArm::pats)
                 .map(|x| x.syntax().to_string())
-                .chain(next_arm.pats().map(|x| x.syntax().to_string()))
-                .collect();
-            ps.join(" | ")
+                .collect::<Vec<String>>()
+                .join(" | ")
         };
 
         let arm = format!("{} => {}", pats, current_expr.syntax().text());
-        let offset = TextUnit::from_usize(arm.len()) - cursor_to_end;
 
-        let start = current_arm.syntax().text_range().start();
-        let end = next_arm.syntax().text_range().end();
+        let start = arms_to_merge.first().unwrap().syntax().text_range().start();
+        let end = arms_to_merge.last().unwrap().syntax().text_range().end();
 
-        edit.target(current_arm.syntax().text_range());
+        edit.target(current_text_range);
+        edit.set_cursor(match cursor_pos {
+            CursorPos::InExpr(back_offset) => start + TextUnit::from_usize(arm.len()) - back_offset,
+            CursorPos::InPat(offset) => offset,
+        });
         edit.replace(TextRange::from_to(start, end), arm);
-        edit.set_cursor(start + offset);
     })
 }
 
+fn contains_placeholder(a: &ast::MatchArm) -> bool {
+    a.pats().any(|x| match x {
+        ra_syntax::ast::Pat::PlaceholderPat(..) => true,
+        _ => false,
+    })
+}
+
+fn next_arm(arm: &ast::MatchArm) -> Option<ast::MatchArm> {
+    arm.syntax().siblings(Direction::Next).skip(1).find_map(ast::MatchArm::cast)
+}
+
 #[cfg(test)]
 mod tests {
     use super::merge_match_arms;
@@ -185,6 +209,37 @@ mod tests {
     }
 
     #[test]
+    fn merges_all_subsequent_arms() {
+        check_assist(
+            merge_match_arms,
+            r#"
+            enum X { A, B, C, D, E }
+
+            fn main() {
+                match X::A {
+                    X::A<|> => 92,
+                    X::B => 92,
+                    X::C => 92,
+                    X::D => 62,
+                    _ => panic!(),
+                }
+            }
+            "#,
+            r#"
+            enum X { A, B, C, D, E }
+
+            fn main() {
+                match X::A {
+                    X::A<|> | X::B | X::C => 92,
+                    X::D => 62,
+                    _ => panic!(),
+                }
+            }
+            "#,
+        )
+    }
+
+    #[test]
     fn merge_match_arms_rejects_guards() {
         check_assist_not_applicable(
             merge_match_arms,
diff --git a/crates/ra_assists/src/assists/replace_if_let_with_match.rs b/crates/ra_assists/src/assists/replace_if_let_with_match.rs
index c9b62e5ff..c8b13b7b3 100644
--- a/crates/ra_assists/src/assists/replace_if_let_with_match.rs
+++ b/crates/ra_assists/src/assists/replace_if_let_with_match.rs
@@ -1,9 +1,12 @@
-use format_buf::format;
 use hir::db::HirDatabase;
-use ra_fmt::extract_trivial_expression;
-use ra_syntax::{ast, AstNode};
+use ra_fmt::unwrap_trivial_block;
+use ra_syntax::{
+    ast::{self, make},
+    AstNode,
+};
 
 use crate::{Assist, AssistCtx, AssistId};
+use ast::edit::IndentLevel;
 
 // Assist: replace_if_let_with_match
 //
@@ -43,32 +46,24 @@ pub(crate) fn replace_if_let_with_match(ctx: AssistCtx<impl HirDatabase>) -> Opt
     };
 
     ctx.add_assist(AssistId("replace_if_let_with_match"), "Replace with match", |edit| {
-        let match_expr = build_match_expr(expr, pat, then_block, else_block);
-        edit.target(if_expr.syntax().text_range());
-        edit.replace_node_and_indent(if_expr.syntax(), match_expr);
-        edit.set_cursor(if_expr.syntax().text_range().start())
-    })
-}
+        let match_expr = {
+            let then_arm = {
+                let then_expr = unwrap_trivial_block(then_block);
+                make::match_arm(vec![pat], then_expr)
+            };
+            let else_arm = {
+                let else_expr = unwrap_trivial_block(else_block);
+                make::match_arm(vec![make::placeholder_pat().into()], else_expr)
+            };
+            make::expr_match(expr, make::match_arm_list(vec![then_arm, else_arm]))
+        };
 
-fn build_match_expr(
-    expr: ast::Expr,
-    pat1: ast::Pat,
-    arm1: ast::BlockExpr,
-    arm2: ast::BlockExpr,
-) -> String {
-    let mut buf = String::new();
-    format!(buf, "match {} {{\n", expr.syntax().text());
-    format!(buf, "    {} => {}\n", pat1.syntax().text(), format_arm(&arm1));
-    format!(buf, "    _ => {}\n", format_arm(&arm2));
-    buf.push_str("}");
-    buf
-}
+        let match_expr = IndentLevel::from_node(if_expr.syntax()).increase_indent(match_expr);
 
-fn format_arm(block: &ast::BlockExpr) -> String {
-    match extract_trivial_expression(block) {
-        Some(e) if !e.syntax().text().contains_char('\n') => format!("{},", e.syntax().text()),
-        _ => block.syntax().text().to_string(),
-    }
+        edit.target(if_expr.syntax().text_range());
+        edit.set_cursor(if_expr.syntax().text_range().start());
+        edit.replace_ast::<ast::Expr>(if_expr.into(), match_expr.into());
+    })
 }
 
 #[cfg(test)]
diff --git a/crates/ra_db/src/fixture.rs b/crates/ra_db/src/fixture.rs
index 30b598e9a..17cd138c2 100644
--- a/crates/ra_db/src/fixture.rs
+++ b/crates/ra_db/src/fixture.rs
@@ -8,8 +8,8 @@ use rustc_hash::FxHashMap;
 use test_utils::{extract_offset, parse_fixture, CURSOR_MARKER};
 
 use crate::{
-    CrateGraph, CrateId, Edition, Env, FileId, FilePosition, RelativePathBuf, SourceDatabaseExt,
-    SourceRoot, SourceRootId,
+    input::CrateName, CrateGraph, CrateId, Edition, Env, FileId, FilePosition, RelativePathBuf,
+    SourceDatabaseExt, SourceRoot, SourceRootId,
 };
 
 pub const WORKSPACE: SourceRootId = SourceRootId(0);
@@ -139,7 +139,7 @@ fn with_files(db: &mut dyn SourceDatabaseExt, fixture: &str) -> Option<FilePosit
         for (from, to) in crate_deps {
             let from_id = crates[&from];
             let to_id = crates[&to];
-            crate_graph.add_dep(from_id, to.into(), to_id).unwrap();
+            crate_graph.add_dep(from_id, CrateName::new(&to).unwrap(), to_id).unwrap();
         }
     }
 
diff --git a/crates/ra_db/src/input.rs b/crates/ra_db/src/input.rs
index 07269237a..1f1dcea42 100644
--- a/crates/ra_db/src/input.rs
+++ b/crates/ra_db/src/input.rs
@@ -83,6 +83,26 @@ pub struct CrateGraph {
 #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct CrateId(pub u32);
 
+pub struct CrateName(SmolStr);
+
+impl CrateName {
+    /// Crates a crate name, checking for dashes in the string provided.
+    /// Dashes are not allowed in the crate names,
+    /// hence the input string is returned as `Err` for those cases.
+    pub fn new(name: &str) -> Result<CrateName, &str> {
+        if name.contains('-') {
+            Err(name)
+        } else {
+            Ok(Self(SmolStr::new(name)))
+        }
+    }
+
+    /// Crates a crate name, unconditionally replacing the dashes with underscores.
+    pub fn normalize_dashes(name: &str) -> CrateName {
+        Self(SmolStr::new(name.replace('-', "_")))
+    }
+}
+
 #[derive(Debug, Clone, PartialEq, Eq)]
 struct CrateData {
     file_id: FileId,
@@ -131,13 +151,13 @@ impl CrateGraph {
     pub fn add_dep(
         &mut self,
         from: CrateId,
-        name: SmolStr,
+        name: CrateName,
         to: CrateId,
     ) -> Result<(), CyclicDependenciesError> {
         if self.dfs_find(from, to, &mut FxHashSet::default()) {
             return Err(CyclicDependenciesError);
         }
-        self.arena.get_mut(&from).unwrap().add_dep(name, to);
+        self.arena.get_mut(&from).unwrap().add_dep(name.0, to);
         Ok(())
     }
 
@@ -268,7 +288,7 @@ pub struct CyclicDependenciesError;
 
 #[cfg(test)]
 mod tests {
-    use super::{CfgOptions, CrateGraph, Edition::Edition2018, Env, FileId, SmolStr};
+    use super::{CfgOptions, CrateGraph, CrateName, Dependency, Edition::Edition2018, Env, FileId};
 
     #[test]
     fn it_should_panic_because_of_cycle_dependencies() {
@@ -279,9 +299,9 @@ mod tests {
             graph.add_crate_root(FileId(2u32), Edition2018, CfgOptions::default(), Env::default());
         let crate3 =
             graph.add_crate_root(FileId(3u32), Edition2018, CfgOptions::default(), Env::default());
-        assert!(graph.add_dep(crate1, SmolStr::new("crate2"), crate2).is_ok());
-        assert!(graph.add_dep(crate2, SmolStr::new("crate3"), crate3).is_ok());
-        assert!(graph.add_dep(crate3, SmolStr::new("crate1"), crate1).is_err());
+        assert!(graph.add_dep(crate1, CrateName::new("crate2").unwrap(), crate2).is_ok());
+        assert!(graph.add_dep(crate2, CrateName::new("crate3").unwrap(), crate3).is_ok());
+        assert!(graph.add_dep(crate3, CrateName::new("crate1").unwrap(), crate1).is_err());
     }
 
     #[test]
@@ -293,7 +313,23 @@ mod tests {
             graph.add_crate_root(FileId(2u32), Edition2018, CfgOptions::default(), Env::default());
         let crate3 =
             graph.add_crate_root(FileId(3u32), Edition2018, CfgOptions::default(), Env::default());
-        assert!(graph.add_dep(crate1, SmolStr::new("crate2"), crate2).is_ok());
-        assert!(graph.add_dep(crate2, SmolStr::new("crate3"), crate3).is_ok());
+        assert!(graph.add_dep(crate1, CrateName::new("crate2").unwrap(), crate2).is_ok());
+        assert!(graph.add_dep(crate2, CrateName::new("crate3").unwrap(), crate3).is_ok());
+    }
+
+    #[test]
+    fn dashes_are_normalized() {
+        let mut graph = CrateGraph::default();
+        let crate1 =
+            graph.add_crate_root(FileId(1u32), Edition2018, CfgOptions::default(), Env::default());
+        let crate2 =
+            graph.add_crate_root(FileId(2u32), Edition2018, CfgOptions::default(), Env::default());
+        assert!(graph
+            .add_dep(crate1, CrateName::normalize_dashes("crate-name-with-dashes"), crate2)
+            .is_ok());
+        assert_eq!(
+            graph.dependencies(crate1).collect::<Vec<_>>(),
+            vec![&Dependency { crate_id: crate2, name: "crate_name_with_dashes".into() }]
+        );
     }
 }
diff --git a/crates/ra_db/src/lib.rs b/crates/ra_db/src/lib.rs
index 21341b769..fb002d717 100644
--- a/crates/ra_db/src/lib.rs
+++ b/crates/ra_db/src/lib.rs
@@ -10,7 +10,9 @@ use ra_syntax::{ast, Parse, SourceFile, TextRange, TextUnit};
 
 pub use crate::{
     cancellation::Canceled,
-    input::{CrateGraph, CrateId, Dependency, Edition, Env, FileId, SourceRoot, SourceRootId},
+    input::{
+        CrateGraph, CrateId, CrateName, Dependency, Edition, Env, FileId, SourceRoot, SourceRootId,
+    },
 };
 pub use relative_path::{RelativePath, RelativePathBuf};
 pub use salsa;
diff --git a/crates/ra_fmt/src/lib.rs b/crates/ra_fmt/src/lib.rs
index 10f592257..4bca27b5c 100644
--- a/crates/ra_fmt/src/lib.rs
+++ b/crates/ra_fmt/src/lib.rs
@@ -35,8 +35,14 @@ fn prev_tokens(token: SyntaxToken) -> impl Iterator<Item = SyntaxToken> {
     successors(token.prev_token(), |token| token.prev_token())
 }
 
-pub fn extract_trivial_expression(expr: &ast::BlockExpr) -> Option<ast::Expr> {
-    let block = expr.block()?;
+pub fn unwrap_trivial_block(block: ast::BlockExpr) -> ast::Expr {
+    extract_trivial_expression(&block)
+        .filter(|expr| !expr.syntax().text().contains_char('\n'))
+        .unwrap_or_else(|| block.into())
+}
+
+pub fn extract_trivial_expression(block: &ast::BlockExpr) -> Option<ast::Expr> {
+    let block = block.block()?;
     let expr = block.expr()?;
     let non_trivial_children = block.syntax().children().filter(|it| match it.kind() {
         WHITESPACE | T!['{'] | T!['}'] => false,
diff --git a/crates/ra_ide/src/mock_analysis.rs b/crates/ra_ide/src/mock_analysis.rs
index bf8a54932..081aaee8c 100644
--- a/crates/ra_ide/src/mock_analysis.rs
+++ b/crates/ra_ide/src/mock_analysis.rs
@@ -3,7 +3,7 @@
 use std::sync::Arc;
 
 use ra_cfg::CfgOptions;
-use ra_db::{Env, RelativePathBuf};
+use ra_db::{CrateName, Env, RelativePathBuf};
 use test_utils::{extract_offset, extract_range, parse_fixture, CURSOR_MARKER};
 
 use crate::{
@@ -107,7 +107,9 @@ impl MockAnalysis {
                     crate_graph.add_crate_root(file_id, Edition2018, cfg_options, Env::default());
                 let crate_name = path.parent().unwrap().file_name().unwrap();
                 if let Some(root_crate) = root_crate {
-                    crate_graph.add_dep(root_crate, crate_name.into(), other_crate).unwrap();
+                    crate_graph
+                        .add_dep(root_crate, CrateName::new(crate_name).unwrap(), other_crate)
+                        .unwrap();
                 }
             }
             change.add_file(source_root, file_id, path, Arc::new(contents));
diff --git a/crates/ra_project_model/src/lib.rs b/crates/ra_project_model/src/lib.rs
index 6a104e6f2..bc1d15406 100644
--- a/crates/ra_project_model/src/lib.rs
+++ b/crates/ra_project_model/src/lib.rs
@@ -13,7 +13,7 @@ use std::{
 };
 
 use ra_cfg::CfgOptions;
-use ra_db::{CrateGraph, CrateId, Edition, Env, FileId};
+use ra_db::{CrateGraph, CrateId, CrateName, Edition, Env, FileId};
 use rustc_hash::FxHashMap;
 use serde_json::from_reader;
 
@@ -177,7 +177,9 @@ impl ProjectWorkspace {
                         if let (Some(&from), Some(&to)) =
                             (crates.get(&from_crate_id), crates.get(&to_crate_id))
                         {
-                            if let Err(_) = crate_graph.add_dep(from, dep.name.clone().into(), to) {
+                            if let Err(_) =
+                                crate_graph.add_dep(from, CrateName::new(&dep.name).unwrap(), to)
+                            {
                                 log::error!(
                                     "cyclic dependency {:?} -> {:?}",
                                     from_crate_id,
@@ -215,7 +217,9 @@ impl ProjectWorkspace {
                         if let (Some(&from), Some(&to)) =
                             (sysroot_crates.get(&from), sysroot_crates.get(&to))
                         {
-                            if let Err(_) = crate_graph.add_dep(from, name.into(), to) {
+                            if let Err(_) =
+                                crate_graph.add_dep(from, CrateName::new(name).unwrap(), to)
+                            {
                                 log::error!("cyclic dependency between sysroot crates")
                             }
                         }
@@ -257,7 +261,7 @@ impl ProjectWorkspace {
                                 if let Some(proc_macro) = libproc_macro {
                                     if let Err(_) = crate_graph.add_dep(
                                         crate_id,
-                                        "proc_macro".into(),
+                                        CrateName::new("proc_macro").unwrap(),
                                         proc_macro,
                                     ) {
                                         log::error!(
@@ -276,9 +280,14 @@ impl ProjectWorkspace {
                     for &from in pkg_crates.get(&pkg).into_iter().flatten() {
                         if let Some(to) = lib_tgt {
                             if to != from {
-                                if let Err(_) =
-                                    crate_graph.add_dep(from, pkg.name(&cargo).into(), to)
-                                {
+                                if let Err(_) = crate_graph.add_dep(
+                                    from,
+                                    // For root projects with dashes in their name,
+                                    // cargo metadata does not do any normalization,
+                                    // so we do it ourselves currently
+                                    CrateName::normalize_dashes(pkg.name(&cargo)),
+                                    to,
+                                ) {
                                     log::error!(
                                         "cyclic dependency between targets of {}",
                                         pkg.name(&cargo)
@@ -289,17 +298,23 @@ impl ProjectWorkspace {
                         // core is added as a dependency before std in order to
                         // mimic rustcs dependency order
                         if let Some(core) = libcore {
-                            if let Err(_) = crate_graph.add_dep(from, "core".into(), core) {
+                            if let Err(_) =
+                                crate_graph.add_dep(from, CrateName::new("core").unwrap(), core)
+                            {
                                 log::error!("cyclic dependency on core for {}", pkg.name(&cargo))
                             }
                         }
                         if let Some(alloc) = liballoc {
-                            if let Err(_) = crate_graph.add_dep(from, "alloc".into(), alloc) {
+                            if let Err(_) =
+                                crate_graph.add_dep(from, CrateName::new("alloc").unwrap(), alloc)
+                            {
                                 log::error!("cyclic dependency on alloc for {}", pkg.name(&cargo))
                             }
                         }
                         if let Some(std) = libstd {
-                            if let Err(_) = crate_graph.add_dep(from, "std".into(), std) {
+                            if let Err(_) =
+                                crate_graph.add_dep(from, CrateName::new("std").unwrap(), std)
+                            {
                                 log::error!("cyclic dependency on std for {}", pkg.name(&cargo))
                             }
                         }
@@ -312,9 +327,11 @@ impl ProjectWorkspace {
                     for dep in pkg.dependencies(&cargo) {
                         if let Some(&to) = pkg_to_lib_crate.get(&dep.pkg) {
                             for &from in pkg_crates.get(&pkg).into_iter().flatten() {
-                                if let Err(_) =
-                                    crate_graph.add_dep(from, dep.name.clone().into(), to)
-                                {
+                                if let Err(_) = crate_graph.add_dep(
+                                    from,
+                                    CrateName::new(&dep.name).unwrap(),
+                                    to,
+                                ) {
                                     log::error!(
                                         "cyclic dependency {} -> {}",
                                         pkg.name(&cargo),
diff --git a/crates/ra_syntax/src/ast/expr_extensions.rs b/crates/ra_syntax/src/ast/expr_extensions.rs
index 539759450..2e50a095c 100644
--- a/crates/ra_syntax/src/ast/expr_extensions.rs
+++ b/crates/ra_syntax/src/ast/expr_extensions.rs
@@ -7,6 +7,21 @@ use crate::{
     SyntaxToken, T,
 };
 
+impl ast::Expr {
+    pub fn is_block_like(&self) -> bool {
+        match self {
+            ast::Expr::IfExpr(_)
+            | ast::Expr::LoopExpr(_)
+            | ast::Expr::ForExpr(_)
+            | ast::Expr::WhileExpr(_)
+            | ast::Expr::BlockExpr(_)
+            | ast::Expr::MatchExpr(_)
+            | ast::Expr::TryBlockExpr(_) => true,
+            _ => false,
+        }
+    }
+}
+
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub enum ElseBranch {
     Block(ast::BlockExpr),
diff --git a/crates/ra_syntax/src/ast/make.rs b/crates/ra_syntax/src/ast/make.rs
index 38c0e9a66..629503dc5 100644
--- a/crates/ra_syntax/src/ast/make.rs
+++ b/crates/ra_syntax/src/ast/make.rs
@@ -122,11 +122,18 @@ pub fn match_arm(pats: impl IntoIterator<Item = ast::Pat>, expr: ast::Expr) -> a
 }
 
 pub fn match_arm_list(arms: impl IntoIterator<Item = ast::MatchArm>) -> ast::MatchArmList {
-    let arms_str = arms.into_iter().map(|arm| format!("\n    {}", arm.syntax())).join(",");
-    return from_text(&format!("{},\n", arms_str));
+    let arms_str = arms
+        .into_iter()
+        .map(|arm| {
+            let needs_comma = arm.expr().map_or(true, |it| !it.is_block_like());
+            let comma = if needs_comma { "," } else { "" };
+            format!("    {}{}\n", arm.syntax(), comma)
+        })
+        .collect::<String>();
+    return from_text(&format!("{}", arms_str));
 
     fn from_text(text: &str) -> ast::MatchArmList {
-        ast_from_text(&format!("fn f() {{ match () {{{}}} }}", text))
+        ast_from_text(&format!("fn f() {{ match () {{\n{}}} }}", text))
     }
 }