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-rw-r--r--crates/hir_expand/src/db.rs9
-rw-r--r--crates/hir_expand/src/lib.rs2
2 files changed, 9 insertions, 2 deletions
diff --git a/crates/hir_expand/src/db.rs b/crates/hir_expand/src/db.rs
index 46ebdbc74..7ea1c6301 100644
--- a/crates/hir_expand/src/db.rs
+++ b/crates/hir_expand/src/db.rs
@@ -3,7 +3,7 @@
3use std::sync::Arc; 3use std::sync::Arc;
4 4
5use base_db::{salsa, SourceDatabase}; 5use base_db::{salsa, SourceDatabase};
6use mbe::{ExpandResult, MacroRules}; 6use mbe::{ExpandError, ExpandResult, MacroRules};
7use parser::FragmentKind; 7use parser::FragmentKind;
8use syntax::{algo::diff, AstNode, GreenNode, Parse, SyntaxKind::*, SyntaxNode}; 8use syntax::{algo::diff, AstNode, GreenNode, Parse, SyntaxKind::*, SyntaxNode};
9 9
@@ -81,6 +81,9 @@ pub trait AstDatabase: SourceDatabase {
81 ) -> ExpandResult<Option<(Parse<SyntaxNode>, Arc<mbe::TokenMap>)>>; 81 ) -> ExpandResult<Option<(Parse<SyntaxNode>, Arc<mbe::TokenMap>)>>;
82 fn macro_expand(&self, macro_call: MacroCallId) -> ExpandResult<Option<Arc<tt::Subtree>>>; 82 fn macro_expand(&self, macro_call: MacroCallId) -> ExpandResult<Option<Arc<tt::Subtree>>>;
83 83
84 /// Firewall query that returns the error from the `macro_expand` query.
85 fn macro_expand_error(&self, macro_call: MacroCallId) -> Option<ExpandError>;
86
84 #[salsa::interned] 87 #[salsa::interned]
85 fn intern_eager_expansion(&self, eager: EagerCallLoc) -> EagerMacroId; 88 fn intern_eager_expansion(&self, eager: EagerCallLoc) -> EagerMacroId;
86 89
@@ -171,6 +174,10 @@ fn macro_expand(db: &dyn AstDatabase, id: MacroCallId) -> ExpandResult<Option<Ar
171 macro_expand_with_arg(db, id, None) 174 macro_expand_with_arg(db, id, None)
172} 175}
173 176
177fn macro_expand_error(db: &dyn AstDatabase, macro_call: MacroCallId) -> Option<ExpandError> {
178 db.macro_expand(macro_call).err
179}
180
174fn expander(db: &dyn AstDatabase, id: MacroCallId) -> Option<Arc<(TokenExpander, mbe::TokenMap)>> { 181fn expander(db: &dyn AstDatabase, id: MacroCallId) -> Option<Arc<(TokenExpander, mbe::TokenMap)>> {
175 let lazy_id = match id { 182 let lazy_id = match id {
176 MacroCallId::LazyMacro(id) => id, 183 MacroCallId::LazyMacro(id) => id,
diff --git a/crates/hir_expand/src/lib.rs b/crates/hir_expand/src/lib.rs
index d5ba691b7..6dad2507b 100644
--- a/crates/hir_expand/src/lib.rs
+++ b/crates/hir_expand/src/lib.rs
@@ -255,7 +255,7 @@ pub enum MacroDefKind {
255pub struct MacroCallLoc { 255pub struct MacroCallLoc {
256 pub(crate) def: MacroDefId, 256 pub(crate) def: MacroDefId,
257 pub(crate) krate: CrateId, 257 pub(crate) krate: CrateId,
258 pub(crate) kind: MacroCallKind, 258 pub kind: MacroCallKind,
259} 259}
260 260
261#[derive(Debug, Clone, PartialEq, Eq, Hash)] 261#[derive(Debug, Clone, PartialEq, Eq, Hash)]