971 lines
34 KiB
Rust
971 lines
34 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! The various pretty print routines.
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pub use self::UserIdentifiedItem::*;
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pub use self::PpSourceMode::*;
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pub use self::PpMode::*;
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use self::NodesMatchingUII::*;
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use rustc_trans::back::link;
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use {driver, abort_on_err};
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use rustc::dep_graph::DepGraph;
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use rustc::ty::{self, TyCtxt};
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use rustc::cfg;
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use rustc::cfg::graphviz::LabelledCFG;
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use rustc::session::Session;
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use rustc::session::config::Input;
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use rustc_borrowck as borrowck;
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use rustc_borrowck::graphviz as borrowck_dot;
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use rustc_resolve as resolve;
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use rustc_metadata::cstore::CStore;
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use rustc_mir::pretty::write_mir_pretty;
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use rustc_mir::graphviz::write_mir_graphviz;
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use syntax::ast::{self, BlockCheckMode};
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use syntax::codemap;
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use syntax::fold::{self, Folder};
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use syntax::print::{pp, pprust};
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use syntax::print::pprust::PrintState;
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use syntax::ptr::P;
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use syntax::util::small_vector::SmallVector;
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use graphviz as dot;
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use std::fs::File;
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use std::io::{self, Write};
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use std::iter;
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use std::option;
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use std::path::PathBuf;
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use std::str::FromStr;
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use rustc::front::map as hir_map;
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use rustc::front::map::{blocks, NodePrinter};
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use rustc_front::hir;
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use rustc_front::lowering::{lower_crate, LoweringContext};
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use rustc_front::print::pprust as pprust_hir;
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use rustc::mir::mir_map::MirMap;
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#[derive(Copy, Clone, PartialEq, Debug)]
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pub enum PpSourceMode {
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PpmNormal,
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PpmEveryBodyLoops,
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PpmExpanded,
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PpmIdentified,
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PpmExpandedIdentified,
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PpmExpandedHygiene,
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PpmTyped,
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}
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#[derive(Copy, Clone, PartialEq, Debug)]
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pub enum PpFlowGraphMode {
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Default,
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/// Drops the labels from the edges in the flowgraph output. This
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/// is mostly for use in the --unpretty flowgraph run-make tests,
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/// since the labels are largely uninteresting in those cases and
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/// have become a pain to maintain.
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UnlabelledEdges,
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}
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#[derive(Copy, Clone, PartialEq, Debug)]
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pub enum PpMode {
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PpmSource(PpSourceMode),
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PpmHir(PpSourceMode),
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PpmFlowGraph(PpFlowGraphMode),
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PpmMir,
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PpmMirCFG,
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}
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pub fn parse_pretty(sess: &Session,
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name: &str,
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extended: bool)
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-> (PpMode, Option<UserIdentifiedItem>) {
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let mut split = name.splitn(2, '=');
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let first = split.next().unwrap();
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let opt_second = split.next();
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let first = match (first, extended) {
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("normal", _) => PpmSource(PpmNormal),
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("identified", _) => PpmSource(PpmIdentified),
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("everybody_loops", true) => PpmSource(PpmEveryBodyLoops),
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("expanded", _) => PpmSource(PpmExpanded),
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("expanded,identified", _) => PpmSource(PpmExpandedIdentified),
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("expanded,hygiene", _) => PpmSource(PpmExpandedHygiene),
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("hir", true) => PpmHir(PpmNormal),
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("hir,identified", true) => PpmHir(PpmIdentified),
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("hir,typed", true) => PpmHir(PpmTyped),
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("mir", true) => PpmMir,
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("mir-cfg", true) => PpmMirCFG,
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("flowgraph", true) => PpmFlowGraph(PpFlowGraphMode::Default),
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("flowgraph,unlabelled", true) => PpmFlowGraph(PpFlowGraphMode::UnlabelledEdges),
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_ => {
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if extended {
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sess.fatal(&format!("argument to `unpretty` must be one of `normal`, \
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`expanded`, `flowgraph[,unlabelled]=<nodeid>`, \
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`identified`, `expanded,identified`, `everybody_loops`, \
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`hir`, `hir,identified`, `hir,typed`, or `mir`; got {}",
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name));
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} else {
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sess.fatal(&format!("argument to `pretty` must be one of `normal`, `expanded`, \
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`identified`, or `expanded,identified`; got {}",
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name));
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}
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}
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};
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let opt_second = opt_second.and_then(|s| s.parse::<UserIdentifiedItem>().ok());
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(first, opt_second)
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}
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// This slightly awkward construction is to allow for each PpMode to
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// choose whether it needs to do analyses (which can consume the
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// Session) and then pass through the session (now attached to the
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// analysis results) on to the chosen pretty-printer, along with the
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// `&PpAnn` object.
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//
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// Note that since the `&PrinterSupport` is freshly constructed on each
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// call, it would not make sense to try to attach the lifetime of `self`
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// to the lifetime of the `&PrinterObject`.
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//
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// (The `use_once_payload` is working around the current lack of once
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// functions in the compiler.)
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impl PpSourceMode {
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/// Constructs a `PrinterSupport` object and passes it to `f`.
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fn call_with_pp_support<'tcx, A, B, F>(&self,
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sess: &'tcx Session,
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ast_map: Option<hir_map::Map<'tcx>>,
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payload: B,
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f: F)
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-> A
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where F: FnOnce(&PrinterSupport, B) -> A
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{
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match *self {
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PpmNormal | PpmEveryBodyLoops | PpmExpanded => {
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let annotation = NoAnn {
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sess: sess,
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ast_map: ast_map,
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};
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f(&annotation, payload)
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}
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PpmIdentified | PpmExpandedIdentified => {
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let annotation = IdentifiedAnnotation {
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sess: sess,
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ast_map: ast_map,
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};
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f(&annotation, payload)
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}
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PpmExpandedHygiene => {
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let annotation = HygieneAnnotation {
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sess: sess,
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ast_map: ast_map,
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};
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f(&annotation, payload)
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}
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_ => panic!("Should use call_with_pp_support_hir"),
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}
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}
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fn call_with_pp_support_hir<'tcx, A, B, F>(&self,
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sess: &'tcx Session,
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cstore: &CStore,
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ast_map: &hir_map::Map<'tcx>,
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arenas: &'tcx ty::CtxtArenas<'tcx>,
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id: &str,
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payload: B,
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f: F)
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-> A
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where F: FnOnce(&HirPrinterSupport, B, &hir::Crate) -> A
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{
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match *self {
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PpmNormal => {
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let annotation = NoAnn {
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sess: sess,
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ast_map: Some(ast_map.clone()),
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};
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f(&annotation, payload, ast_map.forest.krate())
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}
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PpmIdentified => {
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let annotation = IdentifiedAnnotation {
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sess: sess,
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ast_map: Some(ast_map.clone()),
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};
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f(&annotation, payload, ast_map.forest.krate())
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}
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PpmTyped => {
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abort_on_err(driver::phase_3_run_analysis_passes(sess,
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cstore,
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ast_map.clone(),
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arenas,
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id,
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resolve::MakeGlobMap::No,
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|tcx, _, _, _| {
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let annotation = TypedAnnotation {
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tcx: tcx,
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};
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let _ignore = tcx.dep_graph.in_ignore();
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f(&annotation,
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payload,
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ast_map.forest.krate())
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}), sess)
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}
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_ => panic!("Should use call_with_pp_support"),
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}
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}
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}
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trait PrinterSupport<'ast>: pprust::PpAnn {
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/// Provides a uniform interface for re-extracting a reference to a
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/// `Session` from a value that now owns it.
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fn sess<'a>(&'a self) -> &'a Session;
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/// Provides a uniform interface for re-extracting a reference to an
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/// `hir_map::Map` from a value that now owns it.
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fn ast_map<'a>(&'a self) -> Option<&'a hir_map::Map<'ast>>;
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/// Produces the pretty-print annotation object.
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///
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/// (Rust does not yet support upcasting from a trait object to
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/// an object for one of its super-traits.)
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fn pp_ann<'a>(&'a self) -> &'a pprust::PpAnn;
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}
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trait HirPrinterSupport<'ast>: pprust_hir::PpAnn {
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/// Provides a uniform interface for re-extracting a reference to a
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/// `Session` from a value that now owns it.
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fn sess<'a>(&'a self) -> &'a Session;
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/// Provides a uniform interface for re-extracting a reference to an
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/// `hir_map::Map` from a value that now owns it.
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fn ast_map<'a>(&'a self) -> Option<&'a hir_map::Map<'ast>>;
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/// Produces the pretty-print annotation object.
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///
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/// (Rust does not yet support upcasting from a trait object to
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/// an object for one of its super-traits.)
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fn pp_ann<'a>(&'a self) -> &'a pprust_hir::PpAnn;
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}
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struct NoAnn<'ast> {
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sess: &'ast Session,
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ast_map: Option<hir_map::Map<'ast>>,
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}
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impl<'ast> PrinterSupport<'ast> for NoAnn<'ast> {
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fn sess<'a>(&'a self) -> &'a Session {
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self.sess
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}
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fn ast_map<'a>(&'a self) -> Option<&'a hir_map::Map<'ast>> {
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self.ast_map.as_ref()
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}
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fn pp_ann<'a>(&'a self) -> &'a pprust::PpAnn {
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self
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}
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}
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impl<'ast> HirPrinterSupport<'ast> for NoAnn<'ast> {
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fn sess<'a>(&'a self) -> &'a Session {
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self.sess
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}
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fn ast_map<'a>(&'a self) -> Option<&'a hir_map::Map<'ast>> {
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self.ast_map.as_ref()
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}
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fn pp_ann<'a>(&'a self) -> &'a pprust_hir::PpAnn {
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self
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}
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}
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impl<'ast> pprust::PpAnn for NoAnn<'ast> {}
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impl<'ast> pprust_hir::PpAnn for NoAnn<'ast> {}
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struct IdentifiedAnnotation<'ast> {
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sess: &'ast Session,
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ast_map: Option<hir_map::Map<'ast>>,
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}
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impl<'ast> PrinterSupport<'ast> for IdentifiedAnnotation<'ast> {
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fn sess<'a>(&'a self) -> &'a Session {
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self.sess
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}
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fn ast_map<'a>(&'a self) -> Option<&'a hir_map::Map<'ast>> {
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self.ast_map.as_ref()
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}
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fn pp_ann<'a>(&'a self) -> &'a pprust::PpAnn {
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self
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}
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}
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impl<'ast> pprust::PpAnn for IdentifiedAnnotation<'ast> {
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fn pre(&self, s: &mut pprust::State, node: pprust::AnnNode) -> io::Result<()> {
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match node {
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pprust::NodeExpr(_) => s.popen(),
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_ => Ok(()),
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}
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}
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fn post(&self, s: &mut pprust::State, node: pprust::AnnNode) -> io::Result<()> {
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match node {
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pprust::NodeIdent(_) | pprust::NodeName(_) => Ok(()),
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pprust::NodeItem(item) => {
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pp::space(&mut s.s)?;
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s.synth_comment(item.id.to_string())
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}
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pprust::NodeSubItem(id) => {
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pp::space(&mut s.s)?;
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s.synth_comment(id.to_string())
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}
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pprust::NodeBlock(blk) => {
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pp::space(&mut s.s)?;
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s.synth_comment(format!("block {}", blk.id))
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}
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pprust::NodeExpr(expr) => {
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pp::space(&mut s.s)?;
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s.synth_comment(expr.id.to_string())?;
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s.pclose()
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}
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pprust::NodePat(pat) => {
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pp::space(&mut s.s)?;
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s.synth_comment(format!("pat {}", pat.id))
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}
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}
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}
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}
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impl<'ast> HirPrinterSupport<'ast> for IdentifiedAnnotation<'ast> {
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fn sess<'a>(&'a self) -> &'a Session {
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self.sess
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}
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fn ast_map<'a>(&'a self) -> Option<&'a hir_map::Map<'ast>> {
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self.ast_map.as_ref()
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}
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fn pp_ann<'a>(&'a self) -> &'a pprust_hir::PpAnn {
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self
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}
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}
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impl<'ast> pprust_hir::PpAnn for IdentifiedAnnotation<'ast> {
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fn pre(&self, s: &mut pprust_hir::State, node: pprust_hir::AnnNode) -> io::Result<()> {
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match node {
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pprust_hir::NodeExpr(_) => s.popen(),
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_ => Ok(()),
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}
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}
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fn post(&self, s: &mut pprust_hir::State, node: pprust_hir::AnnNode) -> io::Result<()> {
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match node {
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pprust_hir::NodeName(_) => Ok(()),
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pprust_hir::NodeItem(item) => {
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pp::space(&mut s.s)?;
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s.synth_comment(item.id.to_string())
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}
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pprust_hir::NodeSubItem(id) => {
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pp::space(&mut s.s)?;
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s.synth_comment(id.to_string())
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}
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pprust_hir::NodeBlock(blk) => {
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pp::space(&mut s.s)?;
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s.synth_comment(format!("block {}", blk.id))
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}
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pprust_hir::NodeExpr(expr) => {
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pp::space(&mut s.s)?;
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s.synth_comment(expr.id.to_string())?;
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s.pclose()
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}
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pprust_hir::NodePat(pat) => {
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pp::space(&mut s.s)?;
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s.synth_comment(format!("pat {}", pat.id))
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}
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}
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}
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}
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struct HygieneAnnotation<'ast> {
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sess: &'ast Session,
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ast_map: Option<hir_map::Map<'ast>>,
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}
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impl<'ast> PrinterSupport<'ast> for HygieneAnnotation<'ast> {
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fn sess<'a>(&'a self) -> &'a Session {
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self.sess
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}
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fn ast_map<'a>(&'a self) -> Option<&'a hir_map::Map<'ast>> {
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self.ast_map.as_ref()
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}
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fn pp_ann<'a>(&'a self) -> &'a pprust::PpAnn {
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self
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}
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}
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impl<'ast> pprust::PpAnn for HygieneAnnotation<'ast> {
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fn post(&self, s: &mut pprust::State, node: pprust::AnnNode) -> io::Result<()> {
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match node {
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pprust::NodeIdent(&ast::Ident { name: ast::Name(nm), ctxt }) => {
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pp::space(&mut s.s)?;
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// FIXME #16420: this doesn't display the connections
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// between syntax contexts
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s.synth_comment(format!("{}#{}", nm, ctxt.0))
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}
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pprust::NodeName(&ast::Name(nm)) => {
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pp::space(&mut s.s)?;
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s.synth_comment(nm.to_string())
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}
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_ => Ok(()),
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}
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}
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}
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struct TypedAnnotation<'a, 'tcx: 'a> {
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tcx: &'a TyCtxt<'tcx>,
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}
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impl<'b, 'tcx> HirPrinterSupport<'tcx> for TypedAnnotation<'b, 'tcx> {
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fn sess<'a>(&'a self) -> &'a Session {
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&self.tcx.sess
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}
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fn ast_map<'a>(&'a self) -> Option<&'a hir_map::Map<'tcx>> {
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Some(&self.tcx.map)
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}
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fn pp_ann<'a>(&'a self) -> &'a pprust_hir::PpAnn {
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self
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}
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}
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impl<'a, 'tcx> pprust_hir::PpAnn for TypedAnnotation<'a, 'tcx> {
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fn pre(&self, s: &mut pprust_hir::State, node: pprust_hir::AnnNode) -> io::Result<()> {
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match node {
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pprust_hir::NodeExpr(_) => s.popen(),
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_ => Ok(()),
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}
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}
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fn post(&self, s: &mut pprust_hir::State, node: pprust_hir::AnnNode) -> io::Result<()> {
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match node {
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pprust_hir::NodeExpr(expr) => {
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pp::space(&mut s.s)?;
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pp::word(&mut s.s, "as")?;
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pp::space(&mut s.s)?;
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pp::word(&mut s.s, &self.tcx.expr_ty(expr).to_string())?;
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s.pclose()
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}
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_ => Ok(()),
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}
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}
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}
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fn gather_flowgraph_variants(sess: &Session) -> Vec<borrowck_dot::Variant> {
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let print_loans = sess.opts.debugging_opts.flowgraph_print_loans;
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let print_moves = sess.opts.debugging_opts.flowgraph_print_moves;
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let print_assigns = sess.opts.debugging_opts.flowgraph_print_assigns;
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let print_all = sess.opts.debugging_opts.flowgraph_print_all;
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let mut variants = Vec::new();
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if print_all || print_loans {
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variants.push(borrowck_dot::Loans);
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}
|
|
if print_all || print_moves {
|
|
variants.push(borrowck_dot::Moves);
|
|
}
|
|
if print_all || print_assigns {
|
|
variants.push(borrowck_dot::Assigns);
|
|
}
|
|
variants
|
|
}
|
|
|
|
#[derive(Clone, Debug)]
|
|
pub enum UserIdentifiedItem {
|
|
ItemViaNode(ast::NodeId),
|
|
ItemViaPath(Vec<String>),
|
|
}
|
|
|
|
impl FromStr for UserIdentifiedItem {
|
|
type Err = ();
|
|
fn from_str(s: &str) -> Result<UserIdentifiedItem, ()> {
|
|
Ok(s.parse()
|
|
.map(ItemViaNode)
|
|
.unwrap_or_else(|_| ItemViaPath(s.split("::").map(|s| s.to_string()).collect())))
|
|
}
|
|
}
|
|
|
|
enum NodesMatchingUII<'a, 'ast: 'a> {
|
|
NodesMatchingDirect(option::IntoIter<ast::NodeId>),
|
|
NodesMatchingSuffix(hir_map::NodesMatchingSuffix<'a, 'ast>),
|
|
}
|
|
|
|
impl<'a, 'ast> Iterator for NodesMatchingUII<'a, 'ast> {
|
|
type Item = ast::NodeId;
|
|
|
|
fn next(&mut self) -> Option<ast::NodeId> {
|
|
match self {
|
|
&mut NodesMatchingDirect(ref mut iter) => iter.next(),
|
|
&mut NodesMatchingSuffix(ref mut iter) => iter.next(),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl UserIdentifiedItem {
|
|
fn reconstructed_input(&self) -> String {
|
|
match *self {
|
|
ItemViaNode(node_id) => node_id.to_string(),
|
|
ItemViaPath(ref parts) => parts.join("::"),
|
|
}
|
|
}
|
|
|
|
fn all_matching_node_ids<'a, 'ast>(&'a self,
|
|
map: &'a hir_map::Map<'ast>)
|
|
-> NodesMatchingUII<'a, 'ast> {
|
|
match *self {
|
|
ItemViaNode(node_id) => NodesMatchingDirect(Some(node_id).into_iter()),
|
|
ItemViaPath(ref parts) => NodesMatchingSuffix(map.nodes_matching_suffix(&parts[..])),
|
|
}
|
|
}
|
|
|
|
fn to_one_node_id(self, user_option: &str, sess: &Session, map: &hir_map::Map) -> ast::NodeId {
|
|
let fail_because = |is_wrong_because| -> ast::NodeId {
|
|
let message = format!("{} needs NodeId (int) or unique path suffix (b::c::d); got \
|
|
{}, which {}",
|
|
user_option,
|
|
self.reconstructed_input(),
|
|
is_wrong_because);
|
|
sess.fatal(&message[..])
|
|
};
|
|
|
|
let mut saw_node = ast::DUMMY_NODE_ID;
|
|
let mut seen = 0;
|
|
for node in self.all_matching_node_ids(map) {
|
|
saw_node = node;
|
|
seen += 1;
|
|
if seen > 1 {
|
|
fail_because("does not resolve uniquely");
|
|
}
|
|
}
|
|
if seen == 0 {
|
|
fail_because("does not resolve to any item");
|
|
}
|
|
|
|
assert!(seen == 1);
|
|
return saw_node;
|
|
}
|
|
}
|
|
|
|
fn needs_ast_map(ppm: &PpMode, opt_uii: &Option<UserIdentifiedItem>) -> bool {
|
|
match *ppm {
|
|
PpmSource(PpmNormal) |
|
|
PpmSource(PpmEveryBodyLoops) |
|
|
PpmSource(PpmIdentified) => opt_uii.is_some(),
|
|
|
|
PpmSource(PpmExpanded) |
|
|
PpmSource(PpmExpandedIdentified) |
|
|
PpmSource(PpmExpandedHygiene) |
|
|
PpmHir(_) |
|
|
PpmMir |
|
|
PpmMirCFG |
|
|
PpmFlowGraph(_) => true,
|
|
PpmSource(PpmTyped) => panic!("invalid state"),
|
|
}
|
|
}
|
|
|
|
fn needs_expansion(ppm: &PpMode) -> bool {
|
|
match *ppm {
|
|
PpmSource(PpmNormal) |
|
|
PpmSource(PpmEveryBodyLoops) |
|
|
PpmSource(PpmIdentified) => false,
|
|
|
|
PpmSource(PpmExpanded) |
|
|
PpmSource(PpmExpandedIdentified) |
|
|
PpmSource(PpmExpandedHygiene) |
|
|
PpmHir(_) |
|
|
PpmMir |
|
|
PpmMirCFG |
|
|
PpmFlowGraph(_) => true,
|
|
PpmSource(PpmTyped) => panic!("invalid state"),
|
|
}
|
|
}
|
|
|
|
struct ReplaceBodyWithLoop {
|
|
within_static_or_const: bool,
|
|
}
|
|
|
|
impl ReplaceBodyWithLoop {
|
|
fn new() -> ReplaceBodyWithLoop {
|
|
ReplaceBodyWithLoop { within_static_or_const: false }
|
|
}
|
|
}
|
|
|
|
impl fold::Folder for ReplaceBodyWithLoop {
|
|
fn fold_item_kind(&mut self, i: ast::ItemKind) -> ast::ItemKind {
|
|
match i {
|
|
ast::ItemKind::Static(..) | ast::ItemKind::Const(..) => {
|
|
self.within_static_or_const = true;
|
|
let ret = fold::noop_fold_item_kind(i, self);
|
|
self.within_static_or_const = false;
|
|
return ret;
|
|
}
|
|
_ => {
|
|
fold::noop_fold_item_kind(i, self)
|
|
}
|
|
}
|
|
}
|
|
|
|
fn fold_trait_item(&mut self, i: ast::TraitItem) -> SmallVector<ast::TraitItem> {
|
|
match i.node {
|
|
ast::TraitItemKind::Const(..) => {
|
|
self.within_static_or_const = true;
|
|
let ret = fold::noop_fold_trait_item(i, self);
|
|
self.within_static_or_const = false;
|
|
return ret;
|
|
}
|
|
_ => fold::noop_fold_trait_item(i, self),
|
|
}
|
|
}
|
|
|
|
fn fold_impl_item(&mut self, i: ast::ImplItem) -> SmallVector<ast::ImplItem> {
|
|
match i.node {
|
|
ast::ImplItemKind::Const(..) => {
|
|
self.within_static_or_const = true;
|
|
let ret = fold::noop_fold_impl_item(i, self);
|
|
self.within_static_or_const = false;
|
|
return ret;
|
|
}
|
|
_ => fold::noop_fold_impl_item(i, self),
|
|
}
|
|
}
|
|
|
|
fn fold_block(&mut self, b: P<ast::Block>) -> P<ast::Block> {
|
|
fn expr_to_block(rules: ast::BlockCheckMode, e: Option<P<ast::Expr>>) -> P<ast::Block> {
|
|
P(ast::Block {
|
|
expr: e,
|
|
stmts: vec![],
|
|
rules: rules,
|
|
id: ast::DUMMY_NODE_ID,
|
|
span: codemap::DUMMY_SP,
|
|
})
|
|
}
|
|
|
|
if !self.within_static_or_const {
|
|
|
|
let empty_block = expr_to_block(BlockCheckMode::Default, None);
|
|
let loop_expr = P(ast::Expr {
|
|
node: ast::ExprKind::Loop(empty_block, None),
|
|
id: ast::DUMMY_NODE_ID,
|
|
span: codemap::DUMMY_SP,
|
|
attrs: None,
|
|
});
|
|
|
|
expr_to_block(b.rules, Some(loop_expr))
|
|
|
|
} else {
|
|
fold::noop_fold_block(b, self)
|
|
}
|
|
}
|
|
|
|
// in general the pretty printer processes unexpanded code, so
|
|
// we override the default `fold_mac` method which panics.
|
|
fn fold_mac(&mut self, mac: ast::Mac) -> ast::Mac {
|
|
fold::noop_fold_mac(mac, self)
|
|
}
|
|
}
|
|
|
|
pub fn pretty_print_input(sess: Session,
|
|
cstore: &CStore,
|
|
cfg: ast::CrateConfig,
|
|
input: &Input,
|
|
ppm: PpMode,
|
|
opt_uii: Option<UserIdentifiedItem>,
|
|
ofile: Option<PathBuf>) {
|
|
let krate = panictry!(driver::phase_1_parse_input(&sess, cfg, input));
|
|
|
|
let krate = if let PpmSource(PpmEveryBodyLoops) = ppm {
|
|
let mut fold = ReplaceBodyWithLoop::new();
|
|
fold.fold_crate(krate)
|
|
} else {
|
|
krate
|
|
};
|
|
|
|
let id = link::find_crate_name(Some(&sess), &krate.attrs, input);
|
|
|
|
let is_expanded = needs_expansion(&ppm);
|
|
let compute_ast_map = needs_ast_map(&ppm, &opt_uii);
|
|
let krate = if compute_ast_map {
|
|
match driver::phase_2_configure_and_expand(&sess, &cstore, krate, &id[..], None) {
|
|
Err(_) => return,
|
|
Ok(k) => driver::assign_node_ids(&sess, k),
|
|
}
|
|
} else {
|
|
krate
|
|
};
|
|
|
|
// There is some twisted, god-forsaken tangle of lifetimes here which makes
|
|
// the ordering of stuff super-finicky.
|
|
let mut hir_forest;
|
|
let lcx = LoweringContext::new(&sess, Some(&krate));
|
|
let arenas = ty::CtxtArenas::new();
|
|
let dep_graph = DepGraph::new(false);
|
|
let _ignore = dep_graph.in_ignore();
|
|
let ast_map = if compute_ast_map {
|
|
hir_forest = hir_map::Forest::new(lower_crate(&lcx, &krate), dep_graph.clone());
|
|
let map = driver::make_map(&sess, &mut hir_forest);
|
|
Some(map)
|
|
} else {
|
|
None
|
|
};
|
|
|
|
let src_name = driver::source_name(input);
|
|
let src = sess.codemap()
|
|
.get_filemap(&src_name[..])
|
|
.src
|
|
.as_ref()
|
|
.unwrap()
|
|
.as_bytes()
|
|
.to_vec();
|
|
let mut rdr = &src[..];
|
|
|
|
let mut out = Vec::new();
|
|
|
|
match (ppm, opt_uii) {
|
|
(PpmSource(s), _) => {
|
|
// Silently ignores an identified node.
|
|
let out: &mut Write = &mut out;
|
|
s.call_with_pp_support(&sess, ast_map, box out, |annotation, out| {
|
|
debug!("pretty printing source code {:?}", s);
|
|
let sess = annotation.sess();
|
|
pprust::print_crate(sess.codemap(),
|
|
sess.diagnostic(),
|
|
&krate,
|
|
src_name.to_string(),
|
|
&mut rdr,
|
|
out,
|
|
annotation.pp_ann(),
|
|
is_expanded)
|
|
})
|
|
}
|
|
|
|
(PpmHir(s), None) => {
|
|
let out: &mut Write = &mut out;
|
|
s.call_with_pp_support_hir(&sess,
|
|
cstore,
|
|
&ast_map.unwrap(),
|
|
&arenas,
|
|
&id,
|
|
box out,
|
|
|annotation, out, krate| {
|
|
debug!("pretty printing source code {:?}", s);
|
|
let sess = annotation.sess();
|
|
pprust_hir::print_crate(sess.codemap(),
|
|
sess.diagnostic(),
|
|
krate,
|
|
src_name.to_string(),
|
|
&mut rdr,
|
|
out,
|
|
annotation.pp_ann(),
|
|
is_expanded)
|
|
})
|
|
}
|
|
|
|
(PpmHir(s), Some(uii)) => {
|
|
let out: &mut Write = &mut out;
|
|
s.call_with_pp_support_hir(&sess,
|
|
cstore,
|
|
&ast_map.unwrap(),
|
|
&arenas,
|
|
&id,
|
|
(out,uii),
|
|
|annotation, (out,uii), _| {
|
|
debug!("pretty printing source code {:?}", s);
|
|
let sess = annotation.sess();
|
|
let ast_map = annotation.ast_map().expect("--pretty missing ast_map");
|
|
let mut pp_state =
|
|
pprust_hir::State::new_from_input(sess.codemap(),
|
|
sess.diagnostic(),
|
|
src_name.to_string(),
|
|
&mut rdr,
|
|
box out,
|
|
annotation.pp_ann(),
|
|
true,
|
|
Some(ast_map.krate()));
|
|
for node_id in uii.all_matching_node_ids(ast_map) {
|
|
let node = ast_map.get(node_id);
|
|
pp_state.print_node(&node)?;
|
|
pp::space(&mut pp_state.s)?;
|
|
pp_state.synth_comment(ast_map.path_to_string(node_id))?;
|
|
pp::hardbreak(&mut pp_state.s)?;
|
|
}
|
|
pp::eof(&mut pp_state.s)
|
|
})
|
|
}
|
|
|
|
(pp_type@PpmMir, uii) | (pp_type@PpmMirCFG, uii) => {
|
|
let ast_map = ast_map.expect("--unpretty missing ast_map");
|
|
let nodeid = if let Some(uii) = uii {
|
|
debug!("pretty printing MIR for {:?}", uii);
|
|
Some(uii.to_one_node_id("--unpretty", &sess, &ast_map))
|
|
} else {
|
|
debug!("pretty printing MIR for whole crate");
|
|
None
|
|
};
|
|
abort_on_err(driver::phase_3_run_analysis_passes(&sess,
|
|
&cstore,
|
|
ast_map,
|
|
&arenas,
|
|
&id,
|
|
resolve::MakeGlobMap::No,
|
|
|tcx, mir_map, _, _| {
|
|
if let Some(mir_map) = mir_map {
|
|
if let Some(nodeid) = nodeid {
|
|
let mir = mir_map.map.get(&nodeid).unwrap_or_else(|| {
|
|
sess.fatal(&format!("no MIR map entry for node {}", nodeid))
|
|
});
|
|
match pp_type {
|
|
PpmMir => write_mir_pretty(tcx, iter::once((&nodeid, mir)), &mut out),
|
|
_ => write_mir_graphviz(tcx, iter::once((&nodeid, mir)), &mut out)
|
|
}?;
|
|
} else {
|
|
match pp_type {
|
|
PpmMir => write_mir_pretty(tcx, mir_map.map.iter(), &mut out),
|
|
_ => write_mir_graphviz(tcx, mir_map.map.iter(), &mut out)
|
|
}?;
|
|
}
|
|
}
|
|
Ok(())
|
|
}), &sess)
|
|
}
|
|
|
|
(PpmFlowGraph(mode), opt_uii) => {
|
|
debug!("pretty printing flow graph for {:?}", opt_uii);
|
|
let uii = opt_uii.unwrap_or_else(|| {
|
|
sess.fatal(&format!("`pretty flowgraph=..` needs NodeId (int) or
|
|
\
|
|
unique path suffix (b::c::d)"))
|
|
|
|
});
|
|
let ast_map = ast_map.expect("--pretty flowgraph missing ast_map");
|
|
let nodeid = uii.to_one_node_id("--pretty", &sess, &ast_map);
|
|
|
|
let node = ast_map.find(nodeid).unwrap_or_else(|| {
|
|
sess.fatal(&format!("--pretty flowgraph couldn't find id: {}", nodeid))
|
|
});
|
|
|
|
let code = blocks::Code::from_node(node);
|
|
let out: &mut Write = &mut out;
|
|
match code {
|
|
Some(code) => {
|
|
let variants = gather_flowgraph_variants(&sess);
|
|
abort_on_err(driver::phase_3_run_analysis_passes(&sess,
|
|
&cstore,
|
|
ast_map,
|
|
&arenas,
|
|
&id,
|
|
resolve::MakeGlobMap::No,
|
|
|tcx, mir_map, _, _| {
|
|
print_flowgraph(variants,
|
|
tcx,
|
|
mir_map.as_ref(),
|
|
code,
|
|
mode,
|
|
out)
|
|
}), &sess)
|
|
}
|
|
None => {
|
|
let message = format!("--pretty=flowgraph needs block, fn, or method; got \
|
|
{:?}",
|
|
node);
|
|
|
|
// point to what was found, if there's an
|
|
// accessible span.
|
|
match ast_map.opt_span(nodeid) {
|
|
Some(sp) => sess.span_fatal(sp, &message[..]),
|
|
None => sess.fatal(&message[..]),
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
.unwrap();
|
|
|
|
match ofile {
|
|
None => print!("{}", String::from_utf8(out).unwrap()),
|
|
Some(p) => {
|
|
match File::create(&p) {
|
|
Ok(mut w) => w.write_all(&out).unwrap(),
|
|
Err(e) => panic!("print-print failed to open {} due to {}", p.display(), e),
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn print_flowgraph<'tcx, W: Write>(variants: Vec<borrowck_dot::Variant>,
|
|
tcx: &TyCtxt<'tcx>,
|
|
mir_map: Option<&MirMap<'tcx>>,
|
|
code: blocks::Code,
|
|
mode: PpFlowGraphMode,
|
|
mut out: W)
|
|
-> io::Result<()> {
|
|
let cfg = match code {
|
|
blocks::BlockCode(block) => cfg::CFG::new(tcx, &block),
|
|
blocks::FnLikeCode(fn_like) => cfg::CFG::new(tcx, &fn_like.body()),
|
|
};
|
|
let labelled_edges = mode != PpFlowGraphMode::UnlabelledEdges;
|
|
let lcfg = LabelledCFG {
|
|
ast_map: &tcx.map,
|
|
cfg: &cfg,
|
|
name: format!("node_{}", code.id()),
|
|
labelled_edges: labelled_edges,
|
|
};
|
|
|
|
match code {
|
|
_ if variants.is_empty() => {
|
|
let r = dot::render(&lcfg, &mut out);
|
|
return expand_err_details(r);
|
|
}
|
|
blocks::BlockCode(_) => {
|
|
tcx.sess.err("--pretty flowgraph with -Z flowgraph-print annotations requires \
|
|
fn-like node id.");
|
|
return Ok(());
|
|
}
|
|
blocks::FnLikeCode(fn_like) => {
|
|
let (bccx, analysis_data) =
|
|
borrowck::build_borrowck_dataflow_data_for_fn(tcx,
|
|
mir_map,
|
|
fn_like.to_fn_parts(),
|
|
&cfg);
|
|
|
|
let lcfg = borrowck_dot::DataflowLabeller {
|
|
inner: lcfg,
|
|
variants: variants,
|
|
borrowck_ctxt: &bccx,
|
|
analysis_data: &analysis_data,
|
|
};
|
|
let r = dot::render(&lcfg, &mut out);
|
|
return expand_err_details(r);
|
|
}
|
|
}
|
|
|
|
fn expand_err_details(r: io::Result<()>) -> io::Result<()> {
|
|
r.map_err(|ioerr| {
|
|
io::Error::new(io::ErrorKind::Other,
|
|
&format!("graphviz::render failed: {}", ioerr)[..])
|
|
})
|
|
}
|
|
}
|