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Diffstat (limited to 'crates/ide-completion/src/completions/expr.rs')
| -rw-r--r-- | crates/ide-completion/src/completions/expr.rs | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/crates/ide-completion/src/completions/expr.rs b/crates/ide-completion/src/completions/expr.rs new file mode 100644 index 0000000000..f9717f1c2c --- /dev/null +++ b/crates/ide-completion/src/completions/expr.rs @@ -0,0 +1,49 @@ +//! Completion of names from the current scope in expression position. + +use hir::ScopeDef; + +use crate::{ + context::{PathCompletionCtx, PathKind, PathQualifierCtx}, + CompletionContext, Completions, +}; + +pub(crate) fn complete_expr_path(acc: &mut Completions, ctx: &CompletionContext) { + let _p = profile::span("complete_expr_path"); + if ctx.is_path_disallowed() { + return; + } + + let (&is_absolute_path, qualifier) = match &ctx.path_context { + Some(PathCompletionCtx { + kind: Some(PathKind::Expr), is_absolute_path, qualifier, .. + }) => (is_absolute_path, qualifier), + _ => return, + }; + + match qualifier { + Some(PathQualifierCtx { .. }) => return, + None if is_absolute_path => acc.add_crate_roots(ctx), + None => { + acc.add_nameref_keywords_with_colon(ctx); + if let Some(hir::Adt::Enum(e)) = + ctx.expected_type.as_ref().and_then(|ty| ty.strip_references().as_adt()) + { + super::enum_variants_with_paths(acc, ctx, e, |acc, ctx, variant, path| { + acc.add_qualified_enum_variant(ctx, variant, path) + }); + } + ctx.process_all_names(&mut |name, def| { + use hir::{GenericParam::*, ModuleDef::*}; + let add_resolution = match def { + ScopeDef::GenericParam(LifetimeParam(_)) | ScopeDef::Label(_) => false, + // Don't suggest attribute macros and derives. + ScopeDef::ModuleDef(Macro(mac)) => mac.is_fn_like(ctx.db), + _ => true, + }; + if add_resolution { + acc.add_resolution(ctx, name, def); + } + }); + } + } +} |