bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/ide_completion/src/render/builder_ext.rs')
-rw-r--r--crates/ide_completion/src/render/builder_ext.rs129
1 files changed, 0 insertions, 129 deletions
diff --git a/crates/ide_completion/src/render/builder_ext.rs b/crates/ide_completion/src/render/builder_ext.rs
deleted file mode 100644
index 70767a2a9c..0000000000
--- a/crates/ide_completion/src/render/builder_ext.rs
+++ /dev/null
@@ -1,129 +0,0 @@
-//! Extensions for `Builder` structure required for item rendering.
-
-use itertools::Itertools;
-use syntax::SmolStr;
-
-use crate::{context::PathKind, item::Builder, patterns::ImmediateLocation, CompletionContext};
-
-#[derive(Debug)]
-pub(super) enum Params {
- Named(Option<hir::SelfParam>, Vec<hir::Param>),
- #[allow(dead_code)]
- Anonymous(usize),
-}
-
-impl Params {
- pub(super) fn len(&self) -> usize {
- match self {
- Params::Named(selv, params) => params.len() + if selv.is_some() { 1 } else { 0 },
- Params::Anonymous(len) => *len,
- }
- }
-
- pub(super) fn is_empty(&self) -> bool {
- self.len() == 0
- }
-}
-
-impl Builder {
- fn should_add_parens(&self, ctx: &CompletionContext) -> bool {
- if !ctx.config.add_call_parenthesis {
- return false;
- }
- if let Some(PathKind::Use) = ctx.path_kind() {
- cov_mark::hit!(no_parens_in_use_item);
- return false;
- }
- if matches!(ctx.path_kind(), Some(PathKind::Expr | PathKind::Pat) if ctx.path_is_call())
- | matches!(
- ctx.completion_location,
- Some(ImmediateLocation::MethodCall { has_parens: true, .. })
- )
- {
- return false;
- }
-
- // Don't add parentheses if the expected type is some function reference.
- if let Some(ty) = &ctx.expected_type {
- if ty.is_fn() {
- cov_mark::hit!(no_call_parens_if_fn_ptr_needed);
- return false;
- }
- }
-
- // Nothing prevents us from adding parentheses
- true
- }
-
- pub(super) fn add_call_parens(
- &mut self,
- ctx: &CompletionContext,
- name: SmolStr,
- params: Params,
- ) -> &mut Builder {
- if !self.should_add_parens(ctx) {
- return self;
- }
-
- let cap = match ctx.config.snippet_cap {
- Some(it) => it,
- None => return self,
- };
- // If not an import, add parenthesis automatically.
- cov_mark::hit!(inserts_parens_for_function_calls);
-
- let (snippet, label) = if params.is_empty() {
- (format!("{}()$0", name), format!("{}()", name))
- } else {
- self.trigger_call_info();
- let snippet = match (ctx.config.add_call_argument_snippets, params) {
- (true, Params::Named(self_param, params)) => {
- let offset = if self_param.is_some() { 2 } else { 1 };
- let function_params_snippet = params.iter().enumerate().format_with(
- ", ",
- |(index, param), f| match param.name(ctx.db) {
- Some(n) => {
- let smol_str = n.to_smol_str();
- let text = smol_str.as_str().trim_start_matches('_');
- let ref_ = ref_of_param(ctx, text, param.ty());
- f(&format_args!("${{{}:{}{}}}", index + offset, ref_, text))
- }
- None => f(&format_args!("${{{}:_}}", index + offset,)),
- },
- );
- match self_param {
- Some(self_param) => {
- format!(
- "{}(${{1:{}}}{}{})$0",
- name,
- self_param.display(ctx.db),
- if params.is_empty() { "" } else { ", " },
- function_params_snippet
- )
- }
- None => {
- format!("{}({})$0", name, function_params_snippet)
- }
- }
- }
- _ => {
- cov_mark::hit!(suppress_arg_snippets);
- format!("{}($0)", name)
- }
- };
-
- (snippet, format!("{}(…)", name))
- };
- self.lookup_by(name).label(label).insert_snippet(cap, snippet)
- }
-}
-fn ref_of_param(ctx: &CompletionContext, arg: &str, ty: &hir::Type) -> &'static str {
- if let Some(derefed_ty) = ty.remove_ref() {
- for (name, local) in ctx.locals.iter() {
- if name.as_text().as_deref() == Some(arg) && local.ty(ctx.db) == derefed_ty {
- return if ty.is_mutable_reference() { "&mut " } else { "&" };
- }
- }
- }
- ""
-}