Rollup merge of #82860 - LeSeulArtichaut:unpretty-thir, r=spastorino
Add `-Z unpretty` flag for the THIR This adds a new perma-unstable flag, `-Zunpretty=thir-tree`, that dumps the raw THIR tree for each body in the crate. Implements the THIR part of MCP rust-lang/compiler-team#408, helps with rust-lang/rustc-dev-guide#1062. Depends on #82495, blocked on that. Only the two last commits are added by this PR. r? ```@spastorino``` cc ```@estebank```
This commit is contained in:
commit
f183a3ec13
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@ -3870,6 +3870,7 @@ dependencies = [
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"rustc_metadata",
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"rustc_middle",
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"rustc_mir",
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"rustc_mir_build",
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"rustc_parse",
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"rustc_plugin_impl",
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"rustc_save_analysis",
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@ -3877,6 +3878,7 @@ dependencies = [
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"rustc_session",
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"rustc_span",
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"rustc_target",
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"rustc_typeck",
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"tracing",
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"tracing-subscriber",
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"tracing-tree",
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@ -34,6 +34,8 @@ rustc_interface = { path = "../rustc_interface" }
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rustc_serialize = { path = "../rustc_serialize" }
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rustc_ast = { path = "../rustc_ast" }
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rustc_span = { path = "../rustc_span" }
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rustc_mir_build = { path = "../rustc_mir_build" }
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rustc_typeck = { path = "../rustc_typeck" }
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[target.'cfg(windows)'.dependencies]
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winapi = { version = "0.3", features = ["consoleapi", "debugapi", "processenv"] }
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@ -9,12 +9,14 @@ use rustc_hir_pretty as pprust_hir;
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use rustc_middle::hir::map as hir_map;
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use rustc_middle::ty::{self, TyCtxt};
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use rustc_mir::util::{write_mir_graphviz, write_mir_pretty};
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use rustc_mir_build::thir;
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use rustc_session::config::{Input, PpAstTreeMode, PpHirMode, PpMode, PpSourceMode};
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use rustc_session::Session;
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use rustc_span::symbol::Ident;
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use rustc_span::FileName;
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use std::cell::Cell;
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use std::fmt::Write;
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use std::path::Path;
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pub use self::PpMode::*;
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@ -469,6 +471,21 @@ pub fn print_after_hir_lowering<'tcx>(
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format!("{:#?}", krate)
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}),
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ThirTree => {
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let mut out = String::new();
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abort_on_err(rustc_typeck::check_crate(tcx), tcx.sess);
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debug!("pretty printing THIR tree");
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for did in tcx.body_owners() {
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let hir = tcx.hir();
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let body = hir.body(hir.body_owned_by(hir.local_def_id_to_hir_id(did)));
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let arena = thir::Arena::default();
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let thir =
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thir::build_thir(tcx, ty::WithOptConstParam::unknown(did), &arena, &body.value);
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let _ = writeln!(out, "{:?}:\n{:#?}\n", did, thir);
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}
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out
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}
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_ => unreachable!(),
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};
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@ -1,7 +1,6 @@
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use crate::build;
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use crate::build::scope::DropKind;
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use crate::thir::cx::build_thir;
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use crate::thir::{Arena, BindingMode, Expr, LintLevel, Pat, PatKind};
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use crate::thir::{build_thir, Arena, BindingMode, Expr, LintLevel, Pat, PatKind};
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use rustc_attr::{self as attr, UnwindAttr};
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use rustc_errors::ErrorReported;
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use rustc_hir as hir;
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@ -20,7 +20,7 @@ extern crate rustc_middle;
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mod build;
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mod lints;
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mod thir;
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pub mod thir;
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use rustc_middle::ty::query::Providers;
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@ -14,7 +14,7 @@ use rustc_middle::middle::region;
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use rustc_middle::mir::interpret::{LitToConstError, LitToConstInput};
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use rustc_middle::ty::{self, Ty, TyCtxt};
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crate fn build_thir<'thir, 'tcx>(
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pub fn build_thir<'thir, 'tcx>(
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tcx: TyCtxt<'tcx>,
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owner_def: ty::WithOptConstParam<LocalDefId>,
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arena: &'thir Arena<'thir, 'tcx>,
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@ -18,36 +18,37 @@ use rustc_target::abi::VariantIdx;
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use rustc_target::asm::InlineAsmRegOrRegClass;
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crate mod constant;
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crate mod cx;
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pub use cx::build_thir;
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crate mod pattern;
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crate use self::pattern::PatTyProj;
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crate use self::pattern::{BindingMode, FieldPat, Pat, PatKind, PatRange};
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pub use self::pattern::{Ascription, BindingMode, FieldPat, Pat, PatKind, PatRange, PatTyProj};
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mod arena;
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crate use arena::Arena;
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pub use arena::Arena;
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mod util;
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#[derive(Copy, Clone, Debug)]
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crate enum LintLevel {
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pub enum LintLevel {
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Inherited,
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Explicit(hir::HirId),
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}
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#[derive(Debug)]
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crate struct Block<'thir, 'tcx> {
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crate targeted_by_break: bool,
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crate region_scope: region::Scope,
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crate opt_destruction_scope: Option<region::Scope>,
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crate span: Span,
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crate stmts: &'thir [Stmt<'thir, 'tcx>],
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crate expr: Option<&'thir Expr<'thir, 'tcx>>,
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crate safety_mode: BlockSafety,
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pub struct Block<'thir, 'tcx> {
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pub targeted_by_break: bool,
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pub region_scope: region::Scope,
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pub opt_destruction_scope: Option<region::Scope>,
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pub span: Span,
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pub stmts: &'thir [Stmt<'thir, 'tcx>],
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pub expr: Option<&'thir Expr<'thir, 'tcx>>,
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pub safety_mode: BlockSafety,
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}
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#[derive(Copy, Clone, Debug)]
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crate enum BlockSafety {
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pub enum BlockSafety {
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Safe,
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ExplicitUnsafe(hir::HirId),
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PushUnsafe,
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@ -55,13 +56,13 @@ crate enum BlockSafety {
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}
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#[derive(Debug)]
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crate struct Stmt<'thir, 'tcx> {
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crate kind: StmtKind<'thir, 'tcx>,
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crate opt_destruction_scope: Option<region::Scope>,
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pub struct Stmt<'thir, 'tcx> {
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pub kind: StmtKind<'thir, 'tcx>,
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pub opt_destruction_scope: Option<region::Scope>,
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}
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#[derive(Debug)]
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crate enum StmtKind<'thir, 'tcx> {
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pub enum StmtKind<'thir, 'tcx> {
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Expr {
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/// scope for this statement; may be used as lifetime of temporaries
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scope: region::Scope,
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@ -111,23 +112,23 @@ rustc_data_structures::static_assert_size!(Expr<'_, '_>, 144);
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/// example, method calls and overloaded operators are absent: they are
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/// expected to be converted into `Expr::Call` instances.
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#[derive(Debug)]
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crate struct Expr<'thir, 'tcx> {
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pub struct Expr<'thir, 'tcx> {
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/// type of this expression
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crate ty: Ty<'tcx>,
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pub ty: Ty<'tcx>,
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/// lifetime of this expression if it should be spilled into a
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/// temporary; should be None only if in a constant context
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crate temp_lifetime: Option<region::Scope>,
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pub temp_lifetime: Option<region::Scope>,
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/// span of the expression in the source
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crate span: Span,
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pub span: Span,
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/// kind of expression
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crate kind: ExprKind<'thir, 'tcx>,
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pub kind: ExprKind<'thir, 'tcx>,
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}
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#[derive(Debug)]
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crate enum ExprKind<'thir, 'tcx> {
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pub enum ExprKind<'thir, 'tcx> {
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Scope {
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region_scope: region::Scope,
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lint_level: LintLevel,
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@ -316,41 +317,41 @@ crate enum ExprKind<'thir, 'tcx> {
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}
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#[derive(Debug)]
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crate struct FieldExpr<'thir, 'tcx> {
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crate name: Field,
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crate expr: &'thir Expr<'thir, 'tcx>,
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pub struct FieldExpr<'thir, 'tcx> {
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pub name: Field,
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pub expr: &'thir Expr<'thir, 'tcx>,
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}
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#[derive(Debug)]
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crate struct FruInfo<'thir, 'tcx> {
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crate base: &'thir Expr<'thir, 'tcx>,
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crate field_types: &'thir [Ty<'tcx>],
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pub struct FruInfo<'thir, 'tcx> {
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pub base: &'thir Expr<'thir, 'tcx>,
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pub field_types: &'thir [Ty<'tcx>],
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}
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#[derive(Debug)]
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crate struct Arm<'thir, 'tcx> {
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crate pattern: Pat<'tcx>,
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crate guard: Option<Guard<'thir, 'tcx>>,
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crate body: &'thir Expr<'thir, 'tcx>,
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crate lint_level: LintLevel,
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crate scope: region::Scope,
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crate span: Span,
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pub struct Arm<'thir, 'tcx> {
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pub pattern: Pat<'tcx>,
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pub guard: Option<Guard<'thir, 'tcx>>,
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pub body: &'thir Expr<'thir, 'tcx>,
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pub lint_level: LintLevel,
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pub scope: region::Scope,
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pub span: Span,
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}
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#[derive(Debug)]
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crate enum Guard<'thir, 'tcx> {
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pub enum Guard<'thir, 'tcx> {
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If(&'thir Expr<'thir, 'tcx>),
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IfLet(Pat<'tcx>, &'thir Expr<'thir, 'tcx>),
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}
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#[derive(Copy, Clone, Debug)]
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crate enum LogicalOp {
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pub enum LogicalOp {
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And,
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Or,
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}
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#[derive(Debug)]
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crate enum InlineAsmOperand<'thir, 'tcx> {
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pub enum InlineAsmOperand<'thir, 'tcx> {
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In {
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reg: InlineAsmRegOrRegClass,
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expr: &'thir Expr<'thir, 'tcx>,
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@ -40,22 +40,22 @@ crate enum PatternError {
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}
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#[derive(Copy, Clone, Debug, PartialEq)]
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crate enum BindingMode {
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pub enum BindingMode {
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ByValue,
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ByRef(BorrowKind),
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}
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#[derive(Clone, Debug, PartialEq)]
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crate struct FieldPat<'tcx> {
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crate field: Field,
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crate pattern: Pat<'tcx>,
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pub struct FieldPat<'tcx> {
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pub field: Field,
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pub pattern: Pat<'tcx>,
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}
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#[derive(Clone, Debug, PartialEq)]
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crate struct Pat<'tcx> {
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crate ty: Ty<'tcx>,
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crate span: Span,
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crate kind: Box<PatKind<'tcx>>,
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pub struct Pat<'tcx> {
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pub ty: Ty<'tcx>,
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pub span: Span,
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pub kind: Box<PatKind<'tcx>>,
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}
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impl<'tcx> Pat<'tcx> {
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@ -65,8 +65,8 @@ impl<'tcx> Pat<'tcx> {
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}
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#[derive(Copy, Clone, Debug, PartialEq)]
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crate struct PatTyProj<'tcx> {
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crate user_ty: CanonicalUserType<'tcx>,
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pub struct PatTyProj<'tcx> {
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pub user_ty: CanonicalUserType<'tcx>,
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}
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impl<'tcx> PatTyProj<'tcx> {
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@ -92,8 +92,8 @@ impl<'tcx> PatTyProj<'tcx> {
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}
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#[derive(Copy, Clone, Debug, PartialEq)]
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crate struct Ascription<'tcx> {
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crate user_ty: PatTyProj<'tcx>,
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pub struct Ascription<'tcx> {
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pub user_ty: PatTyProj<'tcx>,
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/// Variance to use when relating the type `user_ty` to the **type of the value being
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/// matched**. Typically, this is `Variance::Covariant`, since the value being matched must
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/// have a type that is some subtype of the ascribed type.
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@ -112,12 +112,12 @@ crate struct Ascription<'tcx> {
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/// requires that `&'static str <: T_x`, where `T_x` is the type of `x`. Really, we should
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/// probably be checking for a `PartialEq` impl instead, but this preserves the behavior
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/// of the old type-check for now. See #57280 for details.
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crate variance: ty::Variance,
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crate user_ty_span: Span,
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pub variance: ty::Variance,
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pub user_ty_span: Span,
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}
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#[derive(Clone, Debug, PartialEq)]
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crate enum PatKind<'tcx> {
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pub enum PatKind<'tcx> {
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Wild,
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AscribeUserType {
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@ -195,10 +195,10 @@ crate enum PatKind<'tcx> {
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}
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#[derive(Copy, Clone, Debug, PartialEq)]
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crate struct PatRange<'tcx> {
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crate lo: &'tcx ty::Const<'tcx>,
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crate hi: &'tcx ty::Const<'tcx>,
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crate end: RangeEnd,
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pub struct PatRange<'tcx> {
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pub lo: &'tcx ty::Const<'tcx>,
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pub hi: &'tcx ty::Const<'tcx>,
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pub end: RangeEnd,
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}
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impl<'tcx> fmt::Display for Pat<'tcx> {
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@ -2074,6 +2074,7 @@ fn parse_pretty(
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("hir,identified", true) => Hir(PpHirMode::Identified),
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("hir,typed", true) => Hir(PpHirMode::Typed),
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("hir-tree", true) => HirTree,
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("thir-tree", true) => ThirTree,
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("mir", true) => Mir,
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("mir-cfg", true) => MirCFG,
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_ => {
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@ -2265,6 +2266,8 @@ pub enum PpMode {
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Hir(PpHirMode),
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/// `-Zunpretty=hir-tree`
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HirTree,
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/// `-Zunpretty=thir-tree`
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ThirTree,
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/// `-Zunpretty=mir`
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Mir,
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/// `-Zunpretty=mir-cfg`
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@ -2282,6 +2285,7 @@ impl PpMode {
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| AstTree(PpAstTreeMode::Expanded)
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| Hir(_)
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| HirTree
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| ThirTree
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| Mir
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| MirCFG => true,
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}
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