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//! Diagnostics produced by `hir_def`.
use std::any::Any;
use stdx::format_to;
use cfg::{CfgExpr, CfgOptions, DnfExpr};
use hir_expand::diagnostics::{Diagnostic, DiagnosticCode};
use hir_expand::{HirFileId, InFile};
use syntax::{ast, AstPtr, SyntaxNodePtr};
// Diagnostic: unresolved-module
//
// This diagnostic is triggered if rust-analyzer is unable to discover referred module.
#[derive(Debug)]
pub struct UnresolvedModule {
pub file: HirFileId,
pub decl: AstPtr<ast::Module>,
pub candidate: String,
}
impl Diagnostic for UnresolvedModule {
fn code(&self) -> DiagnosticCode {
DiagnosticCode("unresolved-module")
}
fn message(&self) -> String {
"unresolved module".to_string()
}
fn display_source(&self) -> InFile<SyntaxNodePtr> {
InFile::new(self.file, self.decl.clone().into())
}
fn as_any(&self) -> &(dyn Any + Send + 'static) {
self
}
}
// Diagnostic: unresolved-extern-crate
//
// This diagnostic is triggered if rust-analyzer is unable to discover referred extern crate.
#[derive(Debug)]
pub struct UnresolvedExternCrate {
pub file: HirFileId,
pub item: AstPtr<ast::ExternCrate>,
}
impl Diagnostic for UnresolvedExternCrate {
fn code(&self) -> DiagnosticCode {
DiagnosticCode("unresolved-extern-crate")
}
fn message(&self) -> String {
"unresolved extern crate".to_string()
}
fn display_source(&self) -> InFile<SyntaxNodePtr> {
InFile::new(self.file, self.item.clone().into())
}
fn as_any(&self) -> &(dyn Any + Send + 'static) {
self
}
}
// Diagnostic: unresolved-import
//
// This diagnostic is triggered if rust-analyzer is unable to discover imported module.
#[derive(Debug)]
pub struct UnresolvedImport {
pub file: HirFileId,
pub node: AstPtr<ast::UseTree>,
}
impl Diagnostic for UnresolvedImport {
fn code(&self) -> DiagnosticCode {
DiagnosticCode("unresolved-import")
}
fn message(&self) -> String {
"unresolved import".to_string()
}
fn display_source(&self) -> InFile<SyntaxNodePtr> {
InFile::new(self.file, self.node.clone().into())
}
fn as_any(&self) -> &(dyn Any + Send + 'static) {
self
}
fn is_experimental(&self) -> bool {
// This currently results in false positives in the following cases:
// - `cfg_if!`-generated code in libstd (we don't load the sysroot correctly)
// - `core::arch` (we don't handle `#[path = "../<path>"]` correctly)
// - proc macros and/or proc macro generated code
true
}
}
// Diagnostic: unconfigured-code
//
// This diagnostic is shown for code with inactive `#[cfg]` attributes.
#[derive(Debug)]
pub struct InactiveCode {
pub file: HirFileId,
pub node: SyntaxNodePtr,
pub cfg: CfgExpr,
pub opts: CfgOptions,
}
impl Diagnostic for InactiveCode {
fn code(&self) -> DiagnosticCode {
DiagnosticCode("inactive-code")
}
fn message(&self) -> String {
let inactive = DnfExpr::new(self.cfg.clone()).why_inactive(&self.opts);
let mut buf = "code is inactive due to #[cfg] directives".to_string();
if let Some(inactive) = inactive {
format_to!(buf, ": {}", inactive);
}
buf
}
fn display_source(&self) -> InFile<SyntaxNodePtr> {
InFile::new(self.file, self.node.clone())
}
fn as_any(&self) -> &(dyn Any + Send + 'static) {
self
}
}
|
