diff --git a/compiler/rustc_smir/src/rustc_smir/mod.rs b/compiler/rustc_smir/src/rustc_smir/mod.rs index 2a265fc1f5bc0..f26d18ad38f23 100644 --- a/compiler/rustc_smir/src/rustc_smir/mod.rs +++ b/compiler/rustc_smir/src/rustc_smir/mod.rs @@ -17,8 +17,10 @@ use rustc_middle::ty::{self, Ty, TyCtxt, Variance}; use rustc_span::def_id::{CrateNum, DefId, LOCAL_CRATE}; use rustc_target::abi::FieldIdx; use stable_mir::mir::{CopyNonOverlapping, Statement, UserTypeProjection, VariantIdx}; -use stable_mir::ty::{FloatTy, GenericParamDef, IntTy, Movability, RigidTy, Span, TyKind, UintTy}; -use stable_mir::{self, opaque, Context}; +use stable_mir::ty::{ + FloatTy, GenericParamDef, IntTy, LineInfo, Movability, RigidTy, Span, TyKind, UintTy, +}; +use stable_mir::{self, opaque, Context, Filename}; use tracing::debug; mod alloc; @@ -50,10 +52,27 @@ impl<'tcx> Context for Tables<'tcx> { self.tcx.def_path_str(self[def_id]) } - fn print_span(&self, span: stable_mir::ty::Span) -> String { + fn span_to_string(&self, span: stable_mir::ty::Span) -> String { self.tcx.sess.source_map().span_to_diagnostic_string(self[span]) } + fn get_filename(&self, span: &Span) -> Filename { + opaque( + &self + .tcx + .sess + .source_map() + .span_to_filename(self[*span]) + .display(rustc_span::FileNameDisplayPreference::Local) + .to_string(), + ) + } + + fn get_lines(&self, span: &Span) -> LineInfo { + let lines = &self.tcx.sess.source_map().span_to_location_info(self[*span]); + LineInfo { start_line: lines.1, start_col: lines.2, end_line: lines.3, end_col: lines.4 } + } + fn def_kind(&mut self, def_id: stable_mir::DefId) -> stable_mir::DefKind { self.tcx.def_kind(self[def_id]).stable(self) } diff --git a/compiler/stable_mir/src/lib.rs b/compiler/stable_mir/src/lib.rs index f371f46204fe4..a3b05f2435eb6 100644 --- a/compiler/stable_mir/src/lib.rs +++ b/compiler/stable_mir/src/lib.rs @@ -22,8 +22,8 @@ use std::fmt; use std::fmt::Debug; use self::ty::{ - GenericPredicates, Generics, ImplDef, ImplTrait, IndexedVal, Span, TraitDecl, TraitDef, Ty, - TyKind, + GenericPredicates, Generics, ImplDef, ImplTrait, IndexedVal, LineInfo, Span, TraitDecl, + TraitDef, Ty, TyKind, }; #[macro_use] @@ -108,6 +108,7 @@ pub struct Crate { } pub type DefKind = Opaque; +pub type Filename = Opaque; /// Holds information about an item in the crate. /// For now, it only stores the item DefId. Use functions inside `rustc_internal` module to @@ -196,13 +197,19 @@ pub trait Context { /// Find a crate with the given name. fn find_crates(&self, name: &str) -> Vec; - /// Prints the name of given `DefId` + /// Returns the name of given `DefId` fn name_of_def_id(&self, def_id: DefId) -> String; - /// Prints a human readable form of `Span` - fn print_span(&self, span: Span) -> String; + /// Returns printable, human readable form of `Span` + fn span_to_string(&self, span: Span) -> String; - /// Prints the kind of given `DefId` + /// Return filename from given `Span`, for diagnostic purposes + fn get_filename(&self, span: &Span) -> Filename; + + /// Return lines corresponding to this `Span` + fn get_lines(&self, span: &Span) -> LineInfo; + + /// Returns the `kind` of given `DefId` fn def_kind(&mut self, def_id: DefId) -> DefKind; /// `Span` of an item diff --git a/compiler/stable_mir/src/ty.rs b/compiler/stable_mir/src/ty.rs index 691af15da8ca8..003045a4696d5 100644 --- a/compiler/stable_mir/src/ty.rs +++ b/compiler/stable_mir/src/ty.rs @@ -3,7 +3,7 @@ use super::{ mir::{Body, Mutability}, with, AllocId, DefId, Symbol, }; -use crate::Opaque; +use crate::{Filename, Opaque}; use std::fmt::{self, Debug, Formatter}; #[derive(Copy, Clone)] @@ -81,11 +81,33 @@ impl Debug for Span { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { f.debug_struct("Span") .field("id", &self.0) - .field("repr", &with(|cx| cx.print_span(*self))) + .field("repr", &with(|cx| cx.span_to_string(*self))) .finish() } } +impl Span { + /// Return filename for diagnostic purposes + pub fn get_filename(&self) -> Filename { + with(|c| c.get_filename(self)) + } + + /// Return lines that corespond to this `Span` + pub fn get_lines(&self) -> LineInfo { + with(|c| c.get_lines(&self)) + } +} + +#[derive(Clone, Copy, Debug)] +/// Information you get from `Span` in a struct form. +/// Line and col start from 1. +pub struct LineInfo { + pub start_line: usize, + pub start_col: usize, + pub end_line: usize, + pub end_col: usize, +} + impl IndexedVal for Span { fn to_val(index: usize) -> Self { Span(index)