Replace failure with thiserror

Cargo.lock

@@ -2,21 +2,6 @@
 # It is not intended for manual editing.
 version = 3
 
-[[package]]
-name = "addr2line"
-version = "0.17.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9ecd88a8c8378ca913a680cd98f0f13ac67383d35993f86c90a70e3f137816b"
-dependencies = [
- "gimli",
-]
-
-[[package]]
-name = "adler"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
-
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -34,33 +19,12 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
-[[package]]
-name = "backtrace"
-version = "0.3.63"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "321629d8ba6513061f26707241fa9bc89524ff1cd7a915a97ef0c62c666ce1b6"
-dependencies = [
- "addr2line",
- "cc",
- "cfg-if",
- "libc",
- "miniz_oxide",
- "object",
- "rustc-demangle",
-]
-
 [[package]]
 name = "bitflags"
 version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
-[[package]]
-name = "cc"
-version = "1.0.72"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22a9137b95ea06864e018375b72adfb7db6e6f68cfc8df5a04d00288050485ee"
-
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -103,28 +67,6 @@ version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
-[[package]]
-name = "failure"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d32e9bd16cc02eae7db7ef620b392808b89f6a5e16bb3497d159c6b92a0f4f86"
-dependencies = [
- "backtrace",
- "failure_derive",
-]
-
-[[package]]
-name = "failure_derive"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "synstructure",
-]
-
 [[package]]
 name = "fastrand"
 version = "1.6.0"
@@ -145,12 +87,6 @@ dependencies = [
  "wasi",
 ]
 
-[[package]]
-name = "gimli"
-version = "0.26.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78cc372d058dcf6d5ecd98510e7fbc9e5aec4d21de70f65fea8fecebcd881bd4"
-
 [[package]]
 name = "hashbrown"
 version = "0.11.2"
@@ -211,7 +147,6 @@ name = "kecc"
 version = "0.1.0"
 dependencies = [
  "clap",
- "failure",
  "hexf-parse",
  "itertools",
  "lang-c",
@@ -219,6 +154,7 @@ dependencies = [
  "peg",
  "rand",
  "tempfile",
+ "thiserror",
  "wait-timeout",
 ]
 
@@ -246,16 +182,6 @@ version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
 
-[[package]]
-name = "miniz_oxide"
-version = "0.4.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b"
-dependencies = [
- "adler",
- "autocfg",
-]
-
 [[package]]
 name = "num-traits"
 version = "0.2.14"
@@ -265,15 +191,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "object"
-version = "0.27.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67ac1d3f9a1d3616fd9a60c8d74296f22406a238b6a72f5cc1e6f314df4ffbf9"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "ordered-float"
 version = "2.10.0"
@@ -425,12 +342,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "rustc-demangle"
-version = "0.1.21"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ef03e0a2b150c7a90d01faf6254c9c48a41e95fb2a8c2ac1c6f0d2b9aefc342"
-
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -448,18 +359,6 @@ dependencies = [
  "unicode-xid",
 ]
 
-[[package]]
-name = "synstructure"
-version = "0.12.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f36bdaa60a83aca3921b5259d5400cbf5e90fc51931376a9bd4a0eb79aa7210f"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "unicode-xid",
-]
-
 [[package]]
 name = "tempfile"
 version = "3.3.0"
@@ -489,6 +388,26 @@ version = "0.14.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0066c8d12af8b5acd21e00547c3797fde4e8677254a7ee429176ccebbe93dd80"
 
+[[package]]
+name = "thiserror"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "854babe52e4df1653706b98fcfc05843010039b406875930a70e4d9644e5c417"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa32fd3f627f367fe16f893e2597ae3c05020f8bba2666a4e6ea73d377e5714b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.2"

Cargo.toml

@@ -30,9 +30,9 @@ build-bin = ["clap"]
 
 [dependencies]
 clap = { version = "3.0.10", features = ["derive"], optional = true }
+thiserror = "1.0.30"
 lang-c = "0.11.0"
 itertools = "0.10.3"
-failure = "0.1.8"
 tempfile = "3.3.0"
 ordered-float = "2.10.0"
 hexf-parse = "0.2.1"

src/ir/dtype.rs

@@ -1,11 +1,11 @@
 use core::convert::TryFrom;
 use core::fmt;
 use core::ops::Deref;
-use failure::Fail;
 use lang_c::ast;
 use lang_c::span::Node;
 use std::collections::{HashMap, HashSet};
 use std::hash::Hash;
+use thiserror::Error;
 
 use itertools::izip;
 
@@ -13,10 +13,10 @@ use crate::ir::*;
 use crate::some_or;
 
 /// TODO(document)
-#[derive(Debug, PartialEq, Fail)]
+#[derive(Debug, PartialEq, Error)]
 pub enum DtypeError {
     /// For uncommon error
-    #[fail(display = "{}", message)]
+    #[error("{message}")]
     Misc {
         /// TODO(document)
         message: String,

src/ir/interp.rs

@@ -1,9 +1,9 @@
 use core::fmt;
 use core::iter;
 use core::mem;
-use failure::Fail;
 use ordered_float::OrderedFloat;
 use std::collections::HashMap;
+use thiserror::Error;
 
 use itertools::izip;
 
@@ -301,20 +301,17 @@ impl Value {
     }
 }
 
-#[derive(Debug, PartialEq, Fail)]
+#[derive(Debug, PartialEq, Error)]
 pub enum InterpreterError {
-    #[fail(display = "current block is unreachable")]
+    #[error("current block is unreachable")]
     Unreachable,
-    #[fail(display = "ir has no main function")]
+    #[error("ir has no main function")]
     NoMainFunction,
-    #[fail(display = "ir has no function definition of {} function", func_name)]
+    #[error("ir has no function definition of {} function", func_name)]
     NoFunctionDefinition { func_name: String },
-    #[fail(
+    #[error("ir has no structure definition of {struct_name} structure")]
-        display = "ir has no structure definition of {} structure",
-        struct_name
-    )]
     NoStructureDefinition { struct_name: String },
-    #[fail(display = "{}:{} / {}", func_name, pc, msg)]
+    #[error("{func_name}:{pc} / {msg}")]
     Misc {
         func_name: String,
         pc: Pc,