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implement get_filename/lines for span
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@ -18,7 +18,7 @@ use rustc_span::def_id::{CrateNum, DefId, LOCAL_CRATE};
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use rustc_target::abi::FieldIdx;
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use stable_mir::mir::{CopyNonOverlapping, Statement, UserTypeProjection, VariantIdx};
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use stable_mir::ty::{FloatTy, GenericParamDef, IntTy, Movability, RigidTy, Span, TyKind, UintTy};
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use stable_mir::{self, opaque, Context};
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use stable_mir::{self, opaque, Context, Filename};
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use tracing::debug;
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mod alloc;
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@ -54,6 +54,36 @@ impl<'tcx> Context for Tables<'tcx> {
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self.tcx.sess.source_map().span_to_diagnostic_string(self[span])
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}
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fn get_filename(&self, span: &Span) -> Filename {
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opaque(
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&self
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.tcx
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.sess
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.source_map()
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.span_to_filename(self[*span])
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.display(rustc_span::FileNameDisplayPreference::Short)
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.to_string(),
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)
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}
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fn get_lines(&self, span: &Span) -> Vec<stable_mir::ty::LineInfo> {
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let lines = &self
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.tcx
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.sess
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.source_map()
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.span_to_lines(self[*span])
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.unwrap()
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.lines
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.iter()
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.map(|line| stable_mir::ty::LineInfo {
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line_index: line.line_index + 1,
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start_col: line.start_col.0 + 1,
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end_col: line.end_col.0 + 1,
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})
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.collect::<Vec<stable_mir::ty::LineInfo>>();
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lines.to_vec()
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}
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fn def_kind(&mut self, def_id: stable_mir::DefId) -> stable_mir::DefKind {
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self.tcx.def_kind(self[def_id]).stable(self)
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}
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@ -22,8 +22,8 @@ use std::fmt;
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use std::fmt::Debug;
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use self::ty::{
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GenericPredicates, Generics, ImplDef, ImplTrait, IndexedVal, Span, TraitDecl, TraitDef, Ty,
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TyKind,
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GenericPredicates, Generics, ImplDef, ImplTrait, IndexedVal, LineInfo, Span, TraitDecl,
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TraitDef, Ty, TyKind,
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};
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#[macro_use]
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@ -108,6 +108,7 @@ pub struct Crate {
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}
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pub type DefKind = Opaque;
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pub type Filename = Opaque;
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/// Holds information about an item in the crate.
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/// For now, it only stores the item DefId. Use functions inside `rustc_internal` module to
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@ -196,13 +197,19 @@ pub trait Context {
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/// Find a crate with the given name.
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fn find_crates(&self, name: &str) -> Vec<Crate>;
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/// Prints the name of given `DefId`
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/// Returns the name of given `DefId`
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fn name_of_def_id(&self, def_id: DefId) -> String;
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/// Prints a human readable form of `Span`
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/// Returns printable, human readable form of `Span`
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fn print_span(&self, span: Span) -> String;
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/// Prints the kind of given `DefId`
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/// Return filename from given `Span`, for diagnostic purposes
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fn get_filename(&self, span: &Span) -> Filename;
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/// Return lines corresponding to this `Span`
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fn get_lines(&self, span: &Span) -> Vec<LineInfo>;
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/// Returns the `kind` of given `DefId`
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fn def_kind(&mut self, def_id: DefId) -> DefKind;
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/// `Span` of an item
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@ -3,7 +3,7 @@ use super::{
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mir::{Body, Mutability},
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with, AllocId, DefId, Symbol,
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};
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use crate::Opaque;
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use crate::{Filename, Opaque};
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use std::fmt::{self, Debug, Formatter};
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#[derive(Copy, Clone)]
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@ -86,6 +86,27 @@ impl Debug for Span {
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}
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}
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impl Span {
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/// Return filename for diagnostic purposes
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pub fn get_filename(&self) -> Filename {
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with(|c| c.get_filename(self))
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}
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/// Return lines that corespond to this `Span`
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pub fn get_lines(&self) -> Vec<LineInfo> {
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with(|c| c.get_lines(&self))
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}
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}
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#[derive(Clone, Copy, Debug)]
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/// Information you get from `Span` in a struct form.
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/// Line and col start from 1.
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pub struct LineInfo {
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pub line_index: usize,
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pub start_col: usize,
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pub end_col: usize,
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}
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impl IndexedVal for Span {
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fn to_val(index: usize) -> Self {
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Span(index)
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