From 5a59bc9fcbbacb3d214e5bb9490f66ccb0abf5cb Mon Sep 17 00:00:00 2001 From: Jeremy Kolb Date: Sun, 27 Oct 2019 19:12:21 -0400 Subject: WIP: Expand signature help This is hacky but works for tuple structs. Proof of concept. --- .../ra_ide_api/src/display/function_signature.rs | 29 +++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) (limited to 'crates/ra_ide_api/src/display') diff --git a/crates/ra_ide_api/src/display/function_signature.rs b/crates/ra_ide_api/src/display/function_signature.rs index 43f022ccd..0697a0727 100644 --- a/crates/ra_ide_api/src/display/function_signature.rs +++ b/crates/ra_ide_api/src/display/function_signature.rs @@ -2,7 +2,7 @@ use std::fmt::{self, Display}; -use hir::{Docs, Documentation, HasSource}; +use hir::{Docs, Documentation, HasSource, HirDisplay}; use join_to_string::join; use ra_syntax::ast::{self, AstNode, NameOwner, VisibilityOwner}; use std::convert::From; @@ -42,6 +42,33 @@ impl FunctionSignature { let ast_node = function.source(db).ast; FunctionSignature::from(&ast_node).with_doc_opt(doc) } + + pub(crate) fn from_struct(db: &db::RootDatabase, st: hir::Struct) -> Self { + let doc = st.docs(db); + + let node: ast::StructDef = st.source(db).ast; + + let params = st + .fields(db) + .into_iter() + .map(|field: hir::StructField| { + let name = field.name(db); + let ty = field.ty(db); + format!("{}: {}", name, ty.display(db)) + }) + .collect(); + + FunctionSignature { + visibility: node.visibility().map(|n| n.syntax().text().to_string()), + name: node.name().map(|n| n.text().to_string()), + ret_type: node.name().map(|n| n.text().to_string()), + parameters: /*param_list(node)*/ params, + generic_parameters: generic_parameters(&node), + where_predicates: where_predicates(&node), + doc: None, + } + .with_doc_opt(doc) + } } impl From<&'_ ast::FnDef> for FunctionSignature { -- cgit v1.2.3