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use std::backtrace::Backtrace;
use std::borrow::Cow;
use std::fmt;
use std::num::ParseIntError;
use std::path::{Path, PathBuf};
use std::process::ExitStatus;
use rustc_ast as ast;
use rustc_ast_pretty::pprust;
use rustc_span::edition::Edition;
use crate::{DiagArgValue, IntoDiagArg};
pub struct DiagArgFromDisplay<'a>(pub &'a dyn fmt::Display);
impl IntoDiagArg for DiagArgFromDisplay<'_> {
fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue {
self.0.to_string().into_diag_arg(path)
}
}
impl<'a> From<&'a dyn fmt::Display> for DiagArgFromDisplay<'a> {
fn from(t: &'a dyn fmt::Display) -> Self {
DiagArgFromDisplay(t)
}
}
impl<'a, T: fmt::Display> From<&'a T> for DiagArgFromDisplay<'a> {
fn from(t: &'a T) -> Self {
DiagArgFromDisplay(t)
}
}
impl<'a, T: Clone + IntoDiagArg> IntoDiagArg for &'a T {
fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue {
self.clone().into_diag_arg(path)
}
}
#[macro_export]
macro_rules! into_diag_arg_using_display {
($( $ty:ty ),+ $(,)?) => {
$(
impl $crate::IntoDiagArg for $ty {
fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> $crate::DiagArgValue {
self.to_string().into_diag_arg(path)
}
}
)+
}
}
macro_rules! into_diag_arg_for_number {
($( $ty:ty ),+ $(,)?) => {
$(
impl $crate::IntoDiagArg for $ty {
fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> $crate::DiagArgValue {
// Convert to a string if it won't fit into `Number`.
#[allow(irrefutable_let_patterns)]
if let Ok(n) = TryInto::<i32>::try_into(self) {
$crate::DiagArgValue::Number(n)
} else {
self.to_string().into_diag_arg(path)
}
}
}
)+
}
}
into_diag_arg_using_display!(
ast::ParamKindOrd,
std::io::Error,
Box<dyn std::error::Error>,
std::num::NonZero<u32>,
Edition,
rustc_span::Ident,
rustc_span::MacroRulesNormalizedIdent,
ParseIntError,
ExitStatus,
);
into_diag_arg_for_number!(i8, u8, i16, u16, i32, u32, i64, u64, i128, u128, isize, usize);
impl IntoDiagArg for bool {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
if self {
DiagArgValue::Str(Cow::Borrowed("true"))
} else {
DiagArgValue::Str(Cow::Borrowed("false"))
}
}
}
impl IntoDiagArg for char {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::Owned(format!("{self:?}")))
}
}
impl IntoDiagArg for Vec<char> {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::StrListSepByAnd(
self.into_iter().map(|c| Cow::Owned(format!("{c:?}"))).collect(),
)
}
}
impl IntoDiagArg for rustc_span::Symbol {
fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue {
self.to_ident_string().into_diag_arg(path)
}
}
impl<'a> IntoDiagArg for &'a str {
fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue {
self.to_string().into_diag_arg(path)
}
}
impl IntoDiagArg for String {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::Owned(self))
}
}
impl<'a> IntoDiagArg for Cow<'a, str> {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::Owned(self.into_owned()))
}
}
impl<'a> IntoDiagArg for &'a Path {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::Owned(self.display().to_string()))
}
}
impl IntoDiagArg for PathBuf {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::Owned(self.display().to_string()))
}
}
impl IntoDiagArg for ast::Expr {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::Owned(pprust::expr_to_string(&self)))
}
}
impl IntoDiagArg for ast::Path {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::Owned(pprust::path_to_string(&self)))
}
}
impl IntoDiagArg for ast::token::Token {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(pprust::token_to_string(&self))
}
}
impl IntoDiagArg for ast::token::TokenKind {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(pprust::token_kind_to_string(&self))
}
}
impl IntoDiagArg for std::ffi::CString {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::Owned(self.to_string_lossy().into_owned()))
}
}
impl IntoDiagArg for rustc_data_structures::small_c_str::SmallCStr {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::Owned(self.to_string_lossy().into_owned()))
}
}
impl IntoDiagArg for ast::Visibility {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
let s = pprust::vis_to_string(&self);
let s = s.trim_end().to_string();
DiagArgValue::Str(Cow::Owned(s))
}
}
impl IntoDiagArg for Backtrace {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::from(self.to_string()))
}
}
impl IntoDiagArg for ast::util::parser::ExprPrecedence {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Number(self as i32)
}
}
impl IntoDiagArg for ast::FloatTy {
fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
DiagArgValue::Str(Cow::Borrowed(self.name_str()))
}
}
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