error.rs - source

Files

aho_corasick

packed

teddy

compile.rs mod.rs runtime.rs

api.rs mod.rs pattern.rs rabinkarp.rs vector.rs

ahocorasick.rs automaton.rs buffer.rs byte_frequencies.rs classes.rs dfa.rs error.rs lib.rs nfa.rs prefilter.rs state_id.rs

atty

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bitflags

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clap

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app

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arg

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output

fmt.rs help.rs mod.rs usage.rs

parse

features

mod.rs suggestions.rs

matches

arg_matches.rs matched_arg.rs mod.rs

arg_matcher.rs errors.rs mod.rs parser.rs validator.rs

util

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derive.rs lib.rs macros.rs mkeymap.rs

clap_derive

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utils

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attrs.rs dummies.rs lib.rs parse.rs

codespan

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term

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crc_u16.rs crc_u32.rs crc_u64.rs crc_u8.rs lib.rs

crypto_hash

imp

csv

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csv_core

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debug_helper

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fnv

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getrandom

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glob

hashbrown

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heck

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hex

indexmap

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itoa

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inline_lazy.rs lib.rs

libc

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align.rs mod.rs

align.rs mod.rs

align.rs mod.rs

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linked_hash_map

linked_hash_set

logos

internal.rs lexer.rs lib.rs source.rs

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lrl_test_compiler

config_binary

mod.rs sections.rs

environment

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mission_control

result

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test_assembly

disassembly.rs mod.rs

test_binary

instructions.rs mod.rs segments.rs

test_descriptor

ast.rs concrete_test.rs mod.rs

timeline

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bits.rs lib.rs test_builder.rs

maplit

memchr

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memoffset

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once_cell

imp_std.rs lib.rs race.rs

openssl

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paste

attr.rs error.rs lib.rs segment.rs

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unicode

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ast.rs grammar.rs lib.rs parser.rs validator.rs

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proc_macro2

detection.rs fallback.rs lib.rs marker.rs parse.rs wrapper.rs

proc_macro_error

imp

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proc_macro_error_attr

lib.rs parse.rs settings.rs

proc_macro_hack

error.rs iter.rs lib.rs parse.rs quote.rs

quote

ext.rs format.rs ident_fragment.rs lib.rs runtime.rs spanned.rs to_tokens.rs

rand

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rngs

adapter

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seq

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regex

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ring

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rustc_hash

ryu

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common.rs d2s.rs d2s_full_table.rs d2s_intrinsics.rs digit_table.rs f2s.rs f2s_intrinsics.rs lib.rs

semver

lib.rs version.rs version_req.rs

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serde

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private

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ser

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siphasher

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smallvec

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stable_deref_trait

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syn

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dom

macros.rs mod.rs

formatter

macros.rs mod.rs

parser

macros.rs mod.rs

util

coords.rs escape.rs mod.rs syntax.rs

analytics.rs lib.rs syntax.rs value.rs

tempfile

file

imp

dir.rs error.rs lib.rs spooled.rs util.rs

termcolor

text_size

lib.rs range.rs size.rs traits.rs

textwrap

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core.rs indentation.rs lib.rs word_separators.rs word_splitters.rs wrap_algorithms.rs

toml

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triomphe

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typenum

array.rs bit.rs int.rs lib.rs marker_traits.rs operator_aliases.rs private.rs type_operators.rs uint.rs

ucd_trie

lib.rs owned.rs

unicode_linebreak

lib.rs shared.rs

unicode_segmentation

grapheme.rs lib.rs sentence.rs tables.rs word.rs

unicode_width

lib.rs tables.rs

unicode_xid

lib.rs tables.rs

untrusted

utf8_ranges

char_utf8.rs lib.rs

vec_map

use proc_macro::{Delimiter, Group, Ident, Literal, Punct, Spacing, Span, TokenStream, TokenTree};
use std::iter::FromIterator;

pub struct Error {
    span: Span,
    msg: String,
}

impl Error {
    pub fn new(span: Span, msg: impl Into<String>) -> Self {
        Error {
            span,
            msg: msg.into(),
        }
    }
}

pub fn compile_error(err: Error) -> TokenStream {
    // compile_error!($msg)
    TokenStream::from_iter(vec![
        TokenTree::Ident(Ident::new("compile_error", err.span)),
        TokenTree::Punct({
            let mut punct = Punct::new('!', Spacing::Alone);
            punct.set_span(err.span);
            punct
        }),
        TokenTree::Group({
            let mut group = Group::new(Delimiter::Brace, {
                TokenStream::from_iter(vec![TokenTree::Literal({
                    let mut string = Literal::string(&err.msg);
                    string.set_span(err.span);
                    string
                })])
            });
            group.set_span(err.span);
            group
        }),
    ])
}