rapx/analysis/utils/
show_mir.rs

1use crate::rap_info;
2use colorful::{Color, Colorful};
3use rustc_hir::def_id::DefId;
4use rustc_middle::mir::{
5    BasicBlockData, BasicBlocks, Body, LocalDecl, LocalDecls, Operand, Rvalue, Statement,
6    StatementKind, Terminator, TerminatorKind,
7};
8use rustc_middle::ty::{self, TyCtxt, TyKind};
9
10const NEXT_LINE: &str = "\n";
11const PADDING: &str = "    ";
12const EXPLAIN: &str = " @ ";
13
14// This trait is a wrapper towards std::Display or std::Debug, and is to resolve orphan restrictions.
15pub trait Display {
16    fn display(&self) -> String;
17}
18
19impl<'tcx> Display for Terminator<'tcx> {
20    fn display(&self) -> String {
21        let mut s = String::new();
22        s += &format!("{}{:?}{}", PADDING, self.kind, self.kind.display());
23        s
24    }
25}
26
27impl<'tcx> Display for TerminatorKind<'tcx> {
28    fn display(&self) -> String {
29        let mut s = String::new();
30        s += EXPLAIN;
31        match &self {
32            TerminatorKind::Goto { .. } => s += "Goto",
33            TerminatorKind::SwitchInt { .. } => s += "SwitchInt",
34            TerminatorKind::Return => s += "Return",
35            TerminatorKind::Unreachable => s += "Unreachable",
36            TerminatorKind::Drop { .. } => s += "Drop",
37            TerminatorKind::Assert { .. } => s += "Assert",
38            TerminatorKind::Yield { .. } => s += "Yield",
39            TerminatorKind::FalseEdge { .. } => s += "FalseEdge",
40            TerminatorKind::FalseUnwind { .. } => s += "FalseUnwind",
41            TerminatorKind::InlineAsm { .. } => s += "InlineAsm",
42            TerminatorKind::UnwindResume => s += "UnwindResume",
43            TerminatorKind::UnwindTerminate(..) => s += "UnwindTerminate",
44            TerminatorKind::CoroutineDrop => s += "CoroutineDrop",
45            TerminatorKind::Call { func, .. } => match func {
46                Operand::Constant(constant) => match constant.ty().kind() {
47                    ty::FnDef(id, ..) => {
48                        s += &format!("Call: FnDid: {}", id.index.as_usize()).as_str()
49                    }
50                    _ => (),
51                },
52                _ => (),
53            },
54            TerminatorKind::TailCall { .. } => todo!(),
55        };
56        s
57    }
58}
59
60impl<'tcx> Display for Statement<'tcx> {
61    fn display(&self) -> String {
62        let mut s = String::new();
63        s += &format!("{}{:?}{}", PADDING, self.kind, self.kind.display());
64        s
65    }
66}
67
68impl<'tcx> Display for StatementKind<'tcx> {
69    fn display(&self) -> String {
70        let mut s = String::new();
71        s += EXPLAIN;
72        match &self {
73            StatementKind::Assign(assign) => {
74                s += &format!("{:?}={:?}{}", assign.0, assign.1, assign.1.display());
75            }
76            StatementKind::FakeRead(..) => s += "FakeRead",
77            StatementKind::SetDiscriminant { .. } => s += "SetDiscriminant",
78            StatementKind::Deinit(..) => s += "Deinit",
79            StatementKind::StorageLive(..) => s += "StorageLive",
80            StatementKind::StorageDead(..) => s += "StorageDead",
81            StatementKind::Retag(..) => s += "Retag",
82            StatementKind::AscribeUserType(..) => s += "AscribeUserType",
83            StatementKind::Coverage(..) => s += "Coverage",
84            StatementKind::Nop => s += "Nop",
85            StatementKind::PlaceMention(..) => s += "PlaceMention",
86            StatementKind::Intrinsic(..) => s += "Intrinsic",
87            StatementKind::ConstEvalCounter => s += "ConstEvalCounter",
88            _ => todo!(),
89        }
90        s
91    }
92}
93
94impl<'tcx> Display for Rvalue<'tcx> {
95    fn display(&self) -> String {
96        let mut s = String::new();
97        s += EXPLAIN;
98        match self {
99            Rvalue::Use(..) => s += "Use",
100            Rvalue::Repeat(..) => s += "Repeat",
101            Rvalue::Ref(..) => s += "Ref",
102            Rvalue::ThreadLocalRef(..) => s += "ThreadLocalRef",
103            Rvalue::Len(..) => s += "Len",
104            Rvalue::Cast(..) => s += "Cast",
105            Rvalue::BinaryOp(..) => s += "BinaryOp",
106            Rvalue::NullaryOp(..) => s += "NullaryOp",
107            Rvalue::UnaryOp(..) => s += "UnaryOp",
108            Rvalue::Discriminant(..) => s += "Discriminant",
109            Rvalue::Aggregate(..) => s += "Aggregate",
110            Rvalue::ShallowInitBox(..) => s += "ShallowInitBox",
111            Rvalue::CopyForDeref(..) => s += "CopyForDeref",
112            Rvalue::RawPtr(_, _) => s += "RawPtr",
113            _ => todo!(),
114        }
115        s
116    }
117}
118
119impl<'tcx> Display for BasicBlocks<'tcx> {
120    fn display(&self) -> String {
121        let mut s = String::new();
122        for (index, bb) in self.iter().enumerate() {
123            s += &format!(
124                "bb {} {{{}{}}}{}",
125                index,
126                NEXT_LINE,
127                bb.display(),
128                NEXT_LINE
129            );
130        }
131        s
132    }
133}
134
135impl<'tcx> Display for BasicBlockData<'tcx> {
136    fn display(&self) -> String {
137        let mut s = String::new();
138        s += &format!("CleanUp: {}{}", self.is_cleanup, NEXT_LINE);
139        for stmt in self.statements.iter() {
140            s += &format!("{}{}", stmt.display(), NEXT_LINE);
141        }
142        s += &format!(
143            "{}{}",
144            self.terminator.clone().unwrap().display(),
145            NEXT_LINE
146        );
147        s
148    }
149}
150
151impl<'tcx> Display for LocalDecls<'tcx> {
152    fn display(&self) -> String {
153        let mut s = String::new();
154        for (index, ld) in self.iter().enumerate() {
155            s += &format!("_{}: {} {}", index, ld.display(), NEXT_LINE);
156        }
157        s
158    }
159}
160
161impl<'tcx> Display for LocalDecl<'tcx> {
162    fn display(&self) -> String {
163        let mut s = String::new();
164        s += &format!("{}{}", EXPLAIN, self.ty.kind().display());
165        s
166    }
167}
168
169impl<'tcx> Display for Body<'tcx> {
170    fn display(&self) -> String {
171        let mut s = String::new();
172        s += &self.local_decls.display();
173        s += &self.basic_blocks.display();
174        s
175    }
176}
177
178impl<'tcx> Display for TyKind<'tcx> {
179    fn display(&self) -> String {
180        let mut s = String::new();
181        s += &format!("{:?}", self);
182        s
183    }
184}
185
186impl Display for DefId {
187    fn display(&self) -> String {
188        format!("{:?}", self)
189    }
190}
191
192pub struct ShowMir<'tcx> {
193    pub tcx: TyCtxt<'tcx>,
194}
195
196// #[inline(always)]
197pub fn display_mir(did: DefId, body: &Body) {
198    rap_info!("{}", did.display().color(Color::LightRed));
199    rap_info!("{}", body.local_decls.display().color(Color::Green));
200    rap_info!(
201        "{}",
202        body.basic_blocks.display().color(Color::LightGoldenrod2a)
203    );
204}
205
206impl<'tcx> ShowMir<'tcx> {
207    pub fn new(tcx: TyCtxt<'tcx>) -> Self {
208        Self { tcx }
209    }
210
211    pub fn start(&mut self) {
212        rap_info!("Show MIR");
213        let mir_keys = self.tcx.mir_keys(());
214        for each_mir in mir_keys {
215            let def_id = each_mir.to_def_id();
216            let body = self.tcx.instance_mir(ty::InstanceKind::Item(def_id));
217            display_mir(def_id, body);
218        }
219    }
220}
rapx/analysis/utils/show_mir.rs

rapx/analysis/utils/
show_mir.rs
