diff options
Diffstat (limited to 'src/tools/rust-analyzer/crates/base-db/src')
| -rw-r--r-- | src/tools/rust-analyzer/crates/base-db/src/fixture.rs | 86 | ||||
| -rw-r--r-- | src/tools/rust-analyzer/crates/base-db/src/input.rs | 36 | ||||
| -rw-r--r-- | src/tools/rust-analyzer/crates/base-db/src/lib.rs | 1 |
3 files changed, 93 insertions, 30 deletions
diff --git a/src/tools/rust-analyzer/crates/base-db/src/fixture.rs b/src/tools/rust-analyzer/crates/base-db/src/fixture.rs index 6f83ea40e..8a7e9dfad 100644 --- a/src/tools/rust-analyzer/crates/base-db/src/fixture.rs +++ b/src/tools/rust-analyzer/crates/base-db/src/fixture.rs @@ -6,7 +6,7 @@ use rustc_hash::FxHashMap; use test_utils::{ extract_range_or_offset, Fixture, RangeOrOffset, CURSOR_MARKER, ESCAPED_CURSOR_MARKER, }; -use tt::Subtree; +use tt::token_id::{Leaf, Subtree, TokenTree}; use vfs::{file_set::FileSet, VfsPath}; use crate::{ @@ -110,6 +110,7 @@ impl ChangeFixture { let mut crates = FxHashMap::default(); let mut crate_deps = Vec::new(); let mut default_crate_root: Option<FileId> = None; + let mut default_target_data_layout: Option<String> = None; let mut default_cfg = CfgOptions::default(); let mut file_set = FileSet::default(); @@ -162,7 +163,10 @@ impl ChangeFixture { Ok(Vec::new()), false, origin, - meta.target_data_layout.as_deref().map(Arc::from), + meta.target_data_layout + .as_deref() + .map(Arc::from) + .ok_or_else(|| "target_data_layout unset".into()), ); let prev = crates.insert(crate_name.clone(), crate_id); assert!(prev.is_none()); @@ -175,6 +179,7 @@ impl ChangeFixture { assert!(default_crate_root.is_none()); default_crate_root = Some(file_id); default_cfg = meta.cfg; + default_target_data_layout = meta.target_data_layout; } change.change_file(file_id, Some(Arc::new(text))); @@ -198,7 +203,9 @@ impl ChangeFixture { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + default_target_data_layout + .map(|x| x.into()) + .ok_or_else(|| "target_data_layout unset".into()), ); } else { for (from, to, prelude) in crate_deps { @@ -212,8 +219,10 @@ impl ChangeFixture { .unwrap(); } } - let target_layout = - crate_graph.iter().next().and_then(|it| crate_graph[it].target_layout.clone()); + let target_layout = crate_graph.iter().next().map_or_else( + || Err("target_data_layout unset".into()), + |it| crate_graph[it].target_layout.clone(), + ); if let Some(mini_core) = mini_core { let core_file = file_id; @@ -301,7 +310,7 @@ impl ChangeFixture { } } -fn default_test_proc_macros() -> [(String, ProcMacro); 4] { +fn default_test_proc_macros() -> [(String, ProcMacro); 5] { [ ( r#" @@ -359,6 +368,20 @@ pub fn mirror(input: TokenStream) -> TokenStream { expander: Arc::new(MirrorProcMacroExpander), }, ), + ( + r#" +#[proc_macro] +pub fn shorten(input: TokenStream) -> TokenStream { + loop {} +} +"# + .into(), + ProcMacro { + name: "shorten".into(), + kind: crate::ProcMacroKind::FuncLike, + expander: Arc::new(ShortenProcMacroExpander), + }, + ), ] } @@ -486,17 +509,60 @@ impl ProcMacroExpander for MirrorProcMacroExpander { _: &Env, ) -> Result<Subtree, ProcMacroExpansionError> { fn traverse(input: &Subtree) -> Subtree { - let mut res = Subtree::default(); - res.delimiter = input.delimiter; + let mut token_trees = vec![]; for tt in input.token_trees.iter().rev() { let tt = match tt { tt::TokenTree::Leaf(leaf) => tt::TokenTree::Leaf(leaf.clone()), tt::TokenTree::Subtree(sub) => tt::TokenTree::Subtree(traverse(sub)), }; - res.token_trees.push(tt); + token_trees.push(tt); } - res + Subtree { delimiter: input.delimiter, token_trees } } Ok(traverse(input)) } } + +// Replaces every literal with an empty string literal and every identifier with its first letter, +// but retains all tokens' span. Useful for testing we don't assume token hasn't been modified by +// macros even if it retains its span. +#[derive(Debug)] +struct ShortenProcMacroExpander; +impl ProcMacroExpander for ShortenProcMacroExpander { + fn expand( + &self, + input: &Subtree, + _: Option<&Subtree>, + _: &Env, + ) -> Result<Subtree, ProcMacroExpansionError> { + return Ok(traverse(input)); + + fn traverse(input: &Subtree) -> Subtree { + let token_trees = input + .token_trees + .iter() + .map(|it| match it { + TokenTree::Leaf(leaf) => tt::TokenTree::Leaf(modify_leaf(leaf)), + TokenTree::Subtree(subtree) => tt::TokenTree::Subtree(traverse(subtree)), + }) + .collect(); + Subtree { delimiter: input.delimiter, token_trees } + } + + fn modify_leaf(leaf: &Leaf) -> Leaf { + let mut leaf = leaf.clone(); + match &mut leaf { + Leaf::Literal(it) => { + // XXX Currently replaces any literals with an empty string, but supporting + // "shortening" other literals would be nice. + it.text = "\"\"".into(); + } + Leaf::Punct(_) => {} + Leaf::Ident(it) => { + it.text = it.text.chars().take(1).collect(); + } + } + leaf + } + } +} diff --git a/src/tools/rust-analyzer/crates/base-db/src/input.rs b/src/tools/rust-analyzer/crates/base-db/src/input.rs index 5fa4a8024..43388e915 100644 --- a/src/tools/rust-analyzer/crates/base-db/src/input.rs +++ b/src/tools/rust-analyzer/crates/base-db/src/input.rs @@ -12,7 +12,7 @@ use cfg::CfgOptions; use rustc_hash::FxHashMap; use stdx::hash::{NoHashHashMap, NoHashHashSet}; use syntax::SmolStr; -use tt::Subtree; +use tt::token_id::Subtree; use vfs::{file_set::FileSet, AnchoredPath, FileId, VfsPath}; /// Files are grouped into source roots. A source root is a directory on the @@ -84,15 +84,10 @@ pub struct CrateGraph { arena: NoHashHashMap<CrateId, CrateData>, } -#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)] +#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] pub struct CrateId(pub u32); impl stdx::hash::NoHashHashable for CrateId {} -impl std::hash::Hash for CrateId { - fn hash<H: std::hash::Hasher>(&self, state: &mut H) { - self.0.hash(state); - } -} #[derive(Debug, Clone, PartialEq, Eq, Hash)] pub struct CrateName(SmolStr); @@ -248,6 +243,7 @@ pub enum ProcMacroExpansionError { } pub type ProcMacroLoadResult = Result<Vec<ProcMacro>, String>; +pub type TargetLayoutLoadResult = Result<Arc<str>, Arc<str>>; #[derive(Debug, Clone)] pub struct ProcMacro { @@ -270,7 +266,7 @@ pub struct CrateData { pub display_name: Option<CrateDisplayName>, pub cfg_options: CfgOptions, pub potential_cfg_options: CfgOptions, - pub target_layout: Option<Arc<str>>, + pub target_layout: TargetLayoutLoadResult, pub env: Env, pub dependencies: Vec<Dependency>, pub proc_macro: ProcMacroLoadResult, @@ -286,7 +282,7 @@ pub enum Edition { } impl Edition { - pub const CURRENT: Edition = Edition::Edition2018; + pub const CURRENT: Edition = Edition::Edition2021; } #[derive(Default, Debug, Clone, PartialEq, Eq)] @@ -329,7 +325,7 @@ impl CrateGraph { proc_macro: ProcMacroLoadResult, is_proc_macro: bool, origin: CrateOrigin, - target_layout: Option<Arc<str>>, + target_layout: Result<Arc<str>, Arc<str>>, ) -> CrateId { let data = CrateData { root_file_id, @@ -652,7 +648,7 @@ mod tests { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + Err("".into()), ); let crate2 = graph.add_crate_root( FileId(2u32), @@ -665,7 +661,7 @@ mod tests { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + Err("".into()), ); let crate3 = graph.add_crate_root( FileId(3u32), @@ -678,7 +674,7 @@ mod tests { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + Err("".into()), ); assert!(graph .add_dep(crate1, Dependency::new(CrateName::new("crate2").unwrap(), crate2)) @@ -705,7 +701,7 @@ mod tests { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + Err("".into()), ); let crate2 = graph.add_crate_root( FileId(2u32), @@ -718,7 +714,7 @@ mod tests { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + Err("".into()), ); assert!(graph .add_dep(crate1, Dependency::new(CrateName::new("crate2").unwrap(), crate2)) @@ -742,7 +738,7 @@ mod tests { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + Err("".into()), ); let crate2 = graph.add_crate_root( FileId(2u32), @@ -755,7 +751,7 @@ mod tests { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + Err("".into()), ); let crate3 = graph.add_crate_root( FileId(3u32), @@ -768,7 +764,7 @@ mod tests { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + Err("".into()), ); assert!(graph .add_dep(crate1, Dependency::new(CrateName::new("crate2").unwrap(), crate2)) @@ -792,7 +788,7 @@ mod tests { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + Err("".into()), ); let crate2 = graph.add_crate_root( FileId(2u32), @@ -805,7 +801,7 @@ mod tests { Ok(Vec::new()), false, CrateOrigin::CratesIo { repo: None, name: None }, - None, + Err("".into()), ); assert!(graph .add_dep( diff --git a/src/tools/rust-analyzer/crates/base-db/src/lib.rs b/src/tools/rust-analyzer/crates/base-db/src/lib.rs index 55a51d3bb..9720db9d8 100644 --- a/src/tools/rust-analyzer/crates/base-db/src/lib.rs +++ b/src/tools/rust-analyzer/crates/base-db/src/lib.rs @@ -17,6 +17,7 @@ pub use crate::{ CrateData, CrateDisplayName, CrateGraph, CrateId, CrateName, CrateOrigin, Dependency, Edition, Env, LangCrateOrigin, ProcMacro, ProcMacroExpander, ProcMacroExpansionError, ProcMacroId, ProcMacroKind, ProcMacroLoadResult, SourceRoot, SourceRootId, + TargetLayoutLoadResult, }, }; pub use salsa::{self, Cancelled}; |