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Janggun Lee
2025-01-06 18:45:28 +09:00
parent 021f2cd240
commit fcb6ca2538
15 changed files with 253 additions and 423 deletions
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61
.gitlab-ci.yml
View File

@@ -1,61 +0,0 @@
# Setup a cache to cache job parts between jobs to ensure faster builds
cache:
key: "$CI_JOB_NAME"
untracked: true
paths:
- $HOME/.cargo/
- target/
# Set any required environment variables here
variables:
RUST_BACKTRACE: "FULL"
image: rust:latest
stages:
- install
- test
- deploy
install:
stage: install
script:
- rustc --version # triggering installation
check:
stage: test
before_script:
- rustup component add rustfmt clippy
- cargo install cargo-audit
script:
- cargo check --verbose
- cargo fmt -- --check
- cargo clippy -- -D warnings
- cargo audit
debug:
stage: test
before_script:
- (echo 'Acquire::http { Proxy "http://10.22.0.2:3142"; }' | tee -a /etc/apt/apt.conf.d/01proxy) && apt update && apt install -yy clang gcc-riscv64-linux-gnu g++-riscv64-linux-gnu qemu-user-static
script:
- RUST_MIN_STACK=8388608 cargo test -- --nocapture
release:
stage: test
before_script:
- (echo 'Acquire::http { Proxy "http://10.22.0.2:3142"; }' | tee -a /etc/apt/apt.conf.d/01proxy) && apt update && apt install -yy clang gcc-riscv64-linux-gnu g++-riscv64-linux-gnu qemu-user-static
script:
- RUST_MIN_STACK=8388608 cargo test --release -- --nocapture
pages:
stage: deploy
before_script:
# - apt update && apt install -yy
script:
- cargo doc
- mkdir -p public && cp -r target/doc/* public
artifacts:
paths:
- public
rules:
- if: $CI_COMMIT_REF_NAME == $CI_DEFAULT_BRANCH

304
Cargo.lock generated
View File

@@ -1,12 +1,12 @@
# This file is automatically @generated by Cargo. # This file is automatically @generated by Cargo.
# It is not intended for manual editing. # It is not intended for manual editing.
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name = "wait-timeout" name = "wait-timeout"
@@ -399,139 +416,94 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
[[package]] [[package]]
name = "windows-sys" name = "windows-sys"
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source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [ dependencies = [
"windows-targets 0.48.5", "windows-targets",
]
[[package]]
name = "windows-sys"
version = "0.52.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
dependencies = [
"windows-targets 0.52.5",
] ]
[[package]] [[package]]
name = "windows-targets" name = "windows-targets"
version = "0.48.5" version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [ dependencies = [
"windows_aarch64_gnullvm 0.48.5", "windows_aarch64_gnullvm",
"windows_aarch64_msvc 0.48.5", "windows_aarch64_msvc",
"windows_i686_gnu 0.48.5", "windows_i686_gnu",
"windows_i686_msvc 0.48.5",
"windows_x86_64_gnu 0.48.5",
"windows_x86_64_gnullvm 0.48.5",
"windows_x86_64_msvc 0.48.5",
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"windows_aarch64_msvc 0.52.5",
"windows_i686_gnu 0.52.5",
"windows_i686_gnullvm", "windows_i686_gnullvm",
"windows_i686_msvc 0.52.5", "windows_i686_msvc",
"windows_x86_64_gnu 0.52.5", "windows_x86_64_gnu",
"windows_x86_64_gnullvm 0.52.5", "windows_x86_64_gnullvm",
"windows_x86_64_msvc 0.52.5", "windows_x86_64_msvc",
] ]
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name = "zerocopy-derive"
version = "0.7.35"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
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17
Cargo.toml
View File

@@ -1,7 +1,10 @@
[package] [package]
name = "kecc" name = "kecc"
version = "0.1.0" version = "0.1.0"
authors = ["Chunmyong Park <chunmyong.park@kaist.ac.kr>", "Jeehoon Kang <jeehoon.kang@kaist.ac.kr>"] authors = [
"Chunmyong Park <chunmyong.park@kaist.ac.kr>",
"Jeehoon Kang <jeehoon.kang@kaist.ac.kr>",
]
edition = "2021" edition = "2021"
default-run = "kecc" default-run = "kecc"
@@ -29,13 +32,13 @@ required-features = ["build-bin"]
build-bin = ["clap"] build-bin = ["clap"]
[dependencies] [dependencies]
clap = { version = "4.5.4", features = ["derive"], optional = true } clap = { version = "4.5.23", features = ["derive"], optional = true }
thiserror = "1.0.60" thiserror = "2.0.9"
lang-c = "0.15.1" lang-c = "0.15.1"
itertools = "0.12.1" itertools = "0.14.0"
tempfile = "3.10.1" tempfile = "3.14.0"
ordered-float = "4.2.0" ordered-float = "4.6.0"
hexf-parse = "0.2.1" hexf-parse = "0.2.1"
wait-timeout = "0.2.0" wait-timeout = "0.2.0"
peg = "0.8.3" peg = "0.8.4"
rand = "0.8.5" rand = "0.8.5"

1
rust-toolchain
View File

@@ -1 +0,0 @@
1.78.0

3
rust-toolchain.toml Normal file
View File

@@ -0,0 +1,3 @@
[toolchain]
channel = "1.83.0"
components = ["rustfmt", "clippy", "rust-analyzer"]

92
src/asm/mod.rs
View File

@@ -1,12 +1,11 @@
mod write_asm; mod write_asm;
use crate::ir; use crate::ir;
use crate::write_base::*;
use core::convert::TryFrom; use core::convert::TryFrom;
use core::fmt; use core::fmt;
/// TODO /// An assembly file.
#[derive(Debug, Clone, PartialEq, Eq)] #[derive(Debug, Clone, PartialEq, Eq)]
pub struct Asm { pub struct Asm {
pub unit: TranslationUnit, pub unit: TranslationUnit,
@@ -20,9 +19,9 @@ pub struct TranslationUnit {
#[derive(Debug, Clone, PartialEq, Eq)] #[derive(Debug, Clone, PartialEq, Eq)]
pub struct Section<T> { pub struct Section<T> {
/// Section Headers provide size, offset, type, alignment and flags of the sections /// Headers provide size, offset, type, alignment and flag information.
/// ///
/// For more details: <https://github.com/michaeljclark/michaeljclark.github.io/blob/master/asm.md#section-header> /// For more information: <https://github.com/michaeljclark/michaeljclark.github.io/blob/master/asm.md#section-header>
pub header: Vec<Directive>, pub header: Vec<Directive>,
pub body: T, pub body: T,
} }
@@ -30,7 +29,7 @@ pub struct Section<T> {
/// An object file is made up of multiple sections, with each section corresponding to distinct /// An object file is made up of multiple sections, with each section corresponding to distinct
/// types of executable code or data. /// types of executable code or data.
/// ///
/// For more details: <https://github.com/michaeljclark/michaeljclark.github.io/blob/master/asm.md#sections> /// For more information: <https://github.com/michaeljclark/michaeljclark.github.io/blob/master/asm.md#sections>
impl<T> Section<T> { impl<T> Section<T> {
pub fn new(header: Vec<Directive>, body: T) -> Self { pub fn new(header: Vec<Directive>, body: T) -> Self {
Self { header, body } Self { header, body }
@@ -174,38 +173,29 @@ impl fmt::Display for SymbolType {
} }
} }
/// RISC-V Base Instructions Set.
///
/// See Volume 1 of [RISC-V Technical Specifications](https://lf-riscv.atlassian.net/wiki/spaces/HOME/pages/16154769/RISC-V+Technical+Specifications).
#[derive(Debug, Clone, PartialEq, Eq)] #[derive(Debug, Clone, PartialEq, Eq)]
pub enum Instruction { pub enum Instruction {
/// R-type instruction format
///
/// For more details: <https://riscv.org/wp-content/uploads/2017/05/riscv-spec-v2.2.pdf> (104p)
RType { RType {
instr: RType, instr: RType,
rd: Register, rd: Register,
rs1: Register, rs1: Register,
rs2: Option<Register>, rs2: Option<Register>,
}, },
/// I-type instruction format
///
/// For more details: <https://riscv.org/wp-content/uploads/2017/05/riscv-spec-v2.2.pdf> (104p)
IType { IType {
instr: IType, instr: IType,
rd: Register, rd: Register,
rs1: Register, rs1: Register,
imm: Immediate, imm: Immediate,
}, },
/// S-type instruction format
///
/// For more details: <https://riscv.org/wp-content/uploads/2017/05/riscv-spec-v2.2.pdf> (104p)
SType { SType {
instr: SType, instr: SType,
rs1: Register, rs1: Register,
rs2: Register, rs2: Register,
imm: Immediate, imm: Immediate,
}, },
/// B-type instruction format
///
/// For more details: <https://riscv.org/wp-content/uploads/2017/05/riscv-spec-v2.2.pdf> (104p)
BType { BType {
instr: BType, instr: BType,
rs1: Register, rs1: Register,
@@ -280,8 +270,7 @@ impl fmt::Display for Instruction {
} }
} }
/// If the enum variant contains `bool`, /// If the enum variant contains `is_signed : bool`, it corresponds to different instructions
/// It means that different instructions exist
/// depending on whether the operand is signed or not. /// depending on whether the operand is signed or not.
#[derive(Debug, Clone, Copy, PartialEq, Eq)] #[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum RType { pub enum RType {
@@ -512,13 +501,20 @@ impl RType {
impl fmt::Display for RType { impl fmt::Display for RType {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let filter_word = |data_size: &DataSize| -> String {
if data_size.is_word() {
data_size.to_string()
} else {
"".to_string()
}
};
match self { match self {
Self::Add(data_size) => write!(f, "add{}", data_size.word().write_string()), Self::Add(data_size) => write!(f, "add{}", filter_word(data_size)),
Self::Sub(data_size) => write!(f, "sub{}", data_size.word().write_string()), Self::Sub(data_size) => write!(f, "sub{}", filter_word(data_size)),
Self::Sll(data_size) => write!(f, "sll{}", data_size.word().write_string()), Self::Sll(data_size) => write!(f, "sll{}", filter_word(data_size)),
Self::Srl(data_size) => write!(f, "srl{}", data_size.word().write_string()), Self::Srl(data_size) => write!(f, "srl{}", filter_word(data_size)),
Self::Sra(data_size) => write!(f, "sra{}", data_size.word().write_string()), Self::Sra(data_size) => write!(f, "sra{}", filter_word(data_size)),
Self::Mul(data_size) => write!(f, "mul{}", data_size.word().write_string()), Self::Mul(data_size) => write!(f, "mul{}", filter_word(data_size)),
Self::Div { Self::Div {
data_size, data_size,
is_signed, is_signed,
@@ -526,7 +522,7 @@ impl fmt::Display for RType {
f, f,
"div{}{}", "div{}{}",
if *is_signed { "" } else { "u" }, if *is_signed { "" } else { "u" },
data_size.word().write_string() filter_word(data_size)
), ),
Self::Rem { Self::Rem {
data_size, data_size,
@@ -535,7 +531,7 @@ impl fmt::Display for RType {
f, f,
"rem{}{}", "rem{}{}",
if *is_signed { "" } else { "u" }, if *is_signed { "" } else { "u" },
data_size.word().write_string() filter_word(data_size)
), ),
Self::Slt { is_signed } => write!(f, "slt{}", if *is_signed { "" } else { "u" }), Self::Slt { is_signed } => write!(f, "slt{}", if *is_signed { "" } else { "u" }),
Self::Xor => write!(f, "xor"), Self::Xor => write!(f, "xor"),
@@ -696,6 +692,13 @@ impl IType {
impl fmt::Display for IType { impl fmt::Display for IType {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let filter_word = |data_size: &DataSize| -> String {
if data_size.is_word() {
data_size.to_string()
} else {
"".to_string()
}
};
match self { match self {
Self::Load { Self::Load {
data_size, data_size,
@@ -715,13 +718,13 @@ impl fmt::Display for IType {
) )
} }
} }
Self::Addi(data_size) => write!(f, "addi{}", data_size.word().write_string()), Self::Addi(data_size) => write!(f, "addi{}", filter_word(data_size)),
Self::Xori => write!(f, "xori"), Self::Xori => write!(f, "xori"),
Self::Ori => write!(f, "ori"), Self::Ori => write!(f, "ori"),
Self::Andi => write!(f, "andi"), Self::Andi => write!(f, "andi"),
Self::Slli(data_size) => write!(f, "slli{}", data_size.word().write_string()), Self::Slli(data_size) => write!(f, "slli{}", filter_word(data_size)),
Self::Srli(data_size) => write!(f, "srli{}", data_size.word().write_string()), Self::Srli(data_size) => write!(f, "srli{}", filter_word(data_size)),
Self::Srai(data_size) => write!(f, "srai{}", data_size.word().write_string()), Self::Srai(data_size) => write!(f, "srai{}", filter_word(data_size)),
Self::Slti { is_signed } => write!(f, "slti{}", if *is_signed { "" } else { "u" }), Self::Slti { is_signed } => write!(f, "slti{}", if *is_signed { "" } else { "u" }),
} }
} }
@@ -805,9 +808,7 @@ impl fmt::Display for UType {
/// instructions in the base ISA, but have implicit arguments or reversed arguments that result in /// instructions in the base ISA, but have implicit arguments or reversed arguments that result in
/// distinct semantics. /// distinct semantics.
/// ///
/// For more information: /// For more information: <https://github.com/michaeljclark/michaeljclark.github.io/blob/master/asm.md#assembler-pseudo-instructions>
/// - <https://github.com/michaeljclark/michaeljclark.github.io/blob/master/asm.md#assembler-pseudo-instructions>
/// - <https://riscv.org/wp-content/uploads/2017/05/riscv-spec-v2.2.pdf> (110p)
#[derive(Debug, Clone, PartialEq, Eq)] #[derive(Debug, Clone, PartialEq, Eq)]
pub enum Pseudo { pub enum Pseudo {
/// la rd, symbol /// la rd, symbol
@@ -876,13 +877,20 @@ impl Pseudo {
impl fmt::Display for Pseudo { impl fmt::Display for Pseudo {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let filter_word = |data_size: &DataSize| -> String {
if data_size.is_word() {
data_size.to_string()
} else {
"".to_string()
}
};
match self { match self {
Self::La { rd, symbol } => write!(f, "la\t{rd},{symbol}"), Self::La { rd, symbol } => write!(f, "la\t{rd},{symbol}"),
Self::Li { rd, imm } => write!(f, "li\t{},{}", rd, *imm as i64), Self::Li { rd, imm } => write!(f, "li\t{},{}", rd, *imm as i64),
Self::Mv { rd, rs } => write!(f, "mv\t{rd},{rs}"), Self::Mv { rd, rs } => write!(f, "mv\t{rd},{rs}"),
Self::Fmv { data_size, rd, rs } => write!(f, "fmv.{data_size}\t{rd},{rs}"), Self::Fmv { data_size, rd, rs } => write!(f, "fmv.{data_size}\t{rd},{rs}"),
Self::Neg { data_size, rd, rs } => { Self::Neg { data_size, rd, rs } => {
write!(f, "neg{}\t{},{}", data_size.word().write_string(), rd, rs) write!(f, "neg{}\t{},{}", filter_word(data_size), rd, rs)
} }
Self::SextW { rs, rd } => write!(f, "sext.w\t{rd},{rs}"), Self::SextW { rs, rd } => write!(f, "sext.w\t{rd},{rs}"),
Self::Seqz { rd, rs } => write!(f, "seqz\t{rd},{rs}"), Self::Seqz { rd, rs } => write!(f, "seqz\t{rd},{rs}"),
@@ -929,8 +937,8 @@ impl fmt::Display for Immediate {
} }
} }
/// The relocation function creates synthesize operand values that are resolved /// The relocation function creates synthesize operand values that are resolved at program link time
/// at program link time and are used as immediate parameters for specific instructions. /// and are used as immediate parameters for specific instructions.
/// ///
/// For more details: <https://github.com/riscv-non-isa/riscv-asm-manual/blob/master/riscv-asm.md> /// For more details: <https://github.com/riscv-non-isa/riscv-asm-manual/blob/master/riscv-asm.md>
#[derive(Debug, Clone, Copy, PartialEq, Eq)] #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -1023,12 +1031,8 @@ impl DataSize {
matches!(self, Self::SinglePrecision | Self::DoublePrecision) matches!(self, Self::SinglePrecision | Self::DoublePrecision)
} }
fn word(self) -> Option<Self> { fn is_word(&self) -> bool {
if self == DataSize::Word { matches!(self, Self::Word)
Some(self)
} else {
None
}
} }
} }
@@ -1049,7 +1053,7 @@ impl fmt::Display for DataSize {
} }
} }
/// ABI name for RISC-V integer and floating-point register /// ABI name for RISC-V integer and floating-point register.
/// ///
/// For more details: <https://content.riscv.org/wp-content/uploads/2017/05/riscv-spec-v2.2.pdf> (109p) /// For more details: <https://content.riscv.org/wp-content/uploads/2017/05/riscv-spec-v2.2.pdf> (109p)
// TODO: Add calling convention information (caller/callee-save registers) // TODO: Add calling convention information (caller/callee-save registers)

84
src/asm/write_asm.rs
View File

@@ -73,87 +73,3 @@ impl WriteLine for Block {
Ok(()) Ok(())
} }
} }
impl WriteString for Directive {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for SectionType {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for SymbolType {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for Instruction {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for RType {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for IType {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for SType {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for BType {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for UType {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for Pseudo {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for Immediate {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for RelocationFunction {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for DataSize {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for Register {
fn write_string(&self) -> String {
format!("{self}")
}
}

24
src/c/write_c.rs
View File

@@ -18,31 +18,9 @@ impl<T: WriteString> WriteString for Node<T> {
} }
} }
impl<T: WriteString> WriteString for Box<T> {
fn write_string(&self) -> String {
self.deref().write_string()
}
}
impl<T: WriteString> WriteString for &T {
fn write_string(&self) -> String {
(*self).write_string()
}
}
impl<T: WriteString> WriteString for Option<T> {
fn write_string(&self) -> String {
if let Some(this) = self {
this.write_string()
} else {
"".to_string()
}
}
}
impl WriteLine for TranslationUnit { impl WriteLine for TranslationUnit {
fn write_line(&self, _indent: usize, _write: &mut dyn Write) -> Result<()> { fn write_line(&self, _indent: usize, _write: &mut dyn Write) -> Result<()> {
todo!("homework 1") todo!("Homework: write C")
} }
} }

2
src/ir/dtype.rs
View File

@@ -921,7 +921,7 @@ impl Dtype {
match self { match self {
Self::Unit { .. } => Ok((0, 1)), Self::Unit { .. } => Ok((0, 1)),
Self::Int { width, .. } | Self::Float { width, .. } => { Self::Int { width, .. } | Self::Float { width, .. } => {
let size_of = (*width + Self::BITS_OF_BYTE - 1) / Self::BITS_OF_BYTE; let size_of = (*width).div_ceil(Self::BITS_OF_BYTE);
let align_of = size_of; let align_of = size_of;
Ok((size_of, align_of)) Ok((size_of, align_of))

2
src/ir/interp.rs
View File

@@ -1155,7 +1155,7 @@ struct State<'i> {
} }
impl<'i> State<'i> { impl<'i> State<'i> {
fn new(ir: &'i TranslationUnit, args: Vec<Value>) -> Result<State<'_>, InterpreterError> { fn new(ir: &'i TranslationUnit, args: Vec<Value>) -> Result<State<'i>, InterpreterError> {
// Interpreter starts with the main function // Interpreter starts with the main function
let func_name = String::from("main"); let func_name = String::from("main");
let func = ir let func = ir

11
src/ir/mod.rs
View File

@@ -17,7 +17,6 @@ use ordered_float::OrderedFloat;
use std::collections::{BTreeMap, HashMap}; use std::collections::{BTreeMap, HashMap};
use std::hash::{Hash, Hasher}; use std::hash::{Hash, Hasher};
use crate::write_base::*;
pub use dtype::{Dtype, DtypeError, HasDtype}; pub use dtype::{Dtype, DtypeError, HasDtype};
pub use interp::{interp, Value}; pub use interp::{interp, Value};
pub use parse::Parse; pub use parse::Parse;
@@ -260,6 +259,16 @@ impl Instruction {
} }
} }
/// Format `lang_c::ast::{Binary,Unary}Operations` into KECC-IR.
///
/// Most cases, `fmt::Display` is used to format a type to a string. However, in some cases, we
/// can't implement `fmt::Display` for a type as it is defined in another crate. In such cases, we
/// can implement this trait to format the type to a string.
pub trait WriteOp {
/// Change operations into a String.
fn write_operation(&self) -> String;
}
impl WriteOp for ast::BinaryOperator { impl WriteOp for ast::BinaryOperator {
fn write_operation(&self) -> String { fn write_operation(&self) -> String {
match self { match self {

18
src/ir/write_ir.rs
View File

@@ -157,21 +157,3 @@ impl WriteLine for (&BlockId, &Block) {
Ok(()) Ok(())
} }
} }
impl WriteString for Instruction {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for Operand {
fn write_string(&self) -> String {
format!("{self}")
}
}
impl WriteString for BlockExit {
fn write_string(&self) -> String {
format!("{self}")
}
}

12
src/irgen/mod.rs
View File

@@ -590,8 +590,11 @@ impl IrgenFunc<'_> {
/// ///
/// ```C /// ```C
/// int foo(int x, int y, int z) { /// int foo(int x, int y, int z) {
/// if (x == y) { return y; } /// if (x == y) {
/// else { return z; } /// return y;
/// } else {
/// return z;
/// }
/// } /// }
/// ``` /// ```
/// ///
@@ -615,9 +618,10 @@ impl IrgenFunc<'_> {
/// bid_init = 0 /// bid_init = 0
/// name_of_params = ["x", "y", "z"] /// name_of_params = ["x", "y", "z"]
/// context = // omitted /// context = // omitted
/// ``` /// ```
///
/// The resulting IR after this function should be roughly follows :
/// ///
/// Resulting IR after this function should be roughly follows:
/// ```text /// ```text
/// fun i32 @foo (i32, i32, i32) { /// fun i32 @foo (i32, i32, i32) {
/// init: /// init:

1
src/lib.rs
View File

@@ -21,7 +21,6 @@
// #![deny(missing_docs)] // #![deny(missing_docs)]
#![deny(non_ascii_idents)] #![deny(non_ascii_idents)]
#![deny(noop_method_call)] #![deny(noop_method_call)]
#![deny(pointer_structural_match)]
#![deny(rust_2021_incompatible_closure_captures)] #![deny(rust_2021_incompatible_closure_captures)]
#![deny(rust_2021_incompatible_or_patterns)] #![deny(rust_2021_incompatible_or_patterns)]
#![deny(rust_2021_prefixes_incompatible_syntax)] #![deny(rust_2021_prefixes_incompatible_syntax)]

42
src/write_base.rs
View File

@@ -1,30 +1,52 @@
use std::io::{Result, Write}; use std::io::{Result, Write};
/// TODO(document) /// Write `indent` number of double spaces to `write`.
#[inline] #[inline]
pub fn write_indent(indent: usize, write: &mut dyn Write) -> Result<()> { pub fn write_indent(indent: usize, write: &mut dyn Write) -> Result<()> {
write!(write, "{}", " ".repeat(indent)) write!(write, "{}", " ".repeat(indent))
} }
/// TODO(document) /// A trait for writing a type to a `Write` stream with a new line.
pub trait WriteLine { pub trait WriteLine {
/// TODO(document) /// Write `self` to `write`, starting at `indent` number of double spaces, with a newline at the
/// ned.
fn write_line(&self, indent: usize, write: &mut dyn Write) -> Result<()>; fn write_line(&self, indent: usize, write: &mut dyn Write) -> Result<()>;
} }
/// TODO(document) /// Format types to a String.
///
/// Most cases, `fmt::Display` is used to format a type to a string. However, in some cases, we
/// can't implement `fmt::Display` for a type as it is defined in another crate. In such cases, we
/// can implement this trait to format the type to a string.
pub trait WriteString { pub trait WriteString {
/// TODO(document) /// Change a type into a String.
fn write_string(&self) -> String; fn write_string(&self) -> String;
} }
/// TODO(document) impl<T: WriteString> WriteString for Box<T> {
pub trait WriteOp { fn write_string(&self) -> String {
/// TODO(document) use core::ops::Deref;
fn write_operation(&self) -> String; self.deref().write_string()
}
} }
/// TODO(document) impl<T: WriteString> WriteString for &T {
fn write_string(&self) -> String {
(*self).write_string()
}
}
impl<T: WriteString> WriteString for Option<T> {
fn write_string(&self) -> String {
if let Some(this) = self {
this.write_string()
} else {
"".to_string()
}
}
}
/// Write `t` to `write`.
pub fn write<T: WriteLine>(t: &T, write: &mut dyn Write) -> Result<()> { pub fn write<T: WriteLine>(t: &T, write: &mut dyn Write) -> Result<()> {
t.write_line(0, write) t.write_line(0, write)
} }