sv-parser/src/parser/source_text/library_source_text.rs
2019-07-17 14:05:59 +09:00

114 lines
2.9 KiB
Rust

use crate::ast::*;
use crate::parser::*;
use nom::branch::*;
use nom::combinator::*;
use nom::multi::*;
use nom::sequence::*;
use nom::IResult;
// -----------------------------------------------------------------------------
#[derive(Debug, Node)]
pub struct LibraryText<'a> {
pub nodes: (Vec<LibraryDescription<'a>>,),
}
#[derive(Debug, Node)]
pub enum LibraryDescription<'a> {
LibraryDeclaration(LibraryDeclaration<'a>),
IncludeStatement(IncludeStatement<'a>),
ConfigDeclaration(ConfigDeclaration<'a>),
Null(Symbol<'a>),
}
#[derive(Debug, Node)]
pub struct LibraryDeclaration<'a> {
pub nodes: (
Symbol<'a>,
LibraryIdentifier<'a>,
List<Symbol<'a>, FilePathSpec<'a>>,
Option<(Symbol<'a>, List<Symbol<'a>, FilePathSpec<'a>>)>,
Symbol<'a>,
),
}
#[derive(Debug, Node)]
pub struct IncludeStatement<'a> {
pub nodes: (Symbol<'a>, FilePathSpec<'a>, Symbol<'a>),
}
#[derive(Debug, Node)]
pub struct FilePathSpec<'a> {
pub nodes: (StringLiteral<'a>,),
}
// -----------------------------------------------------------------------------
#[parser]
pub fn library_text(s: Span) -> IResult<Span, LibraryText> {
let (s, a) = many0(library_description)(s)?;
Ok((s, LibraryText { nodes: (a,) }))
}
#[parser]
pub fn library_description(s: Span) -> IResult<Span, LibraryDescription> {
alt((
map(library_declaration, |x| {
LibraryDescription::LibraryDeclaration(x)
}),
map(include_statement, |x| {
LibraryDescription::IncludeStatement(x)
}),
map(config_declaration, |x| {
LibraryDescription::ConfigDeclaration(x)
}),
map(symbol(";"), |x| LibraryDescription::Null(x)),
))(s)
}
#[parser]
pub fn library_declaration(s: Span) -> IResult<Span, LibraryDeclaration> {
let (s, a) = symbol("library")(s)?;
let (s, b) = library_identifier(s)?;
let (s, c) = list(symbol(","), file_path_spec)(s)?;
let (s, d) = opt(pair(symbol("-incdir"), list(symbol(","), file_path_spec)))(s)?;
let (s, e) = symbol(";")(s)?;
Ok((
s,
LibraryDeclaration {
nodes: (a, b, c, d, e),
},
))
}
#[parser]
pub fn include_statement(s: Span) -> IResult<Span, IncludeStatement> {
let (s, a) = symbol("include")(s)?;
let (s, b) = file_path_spec(s)?;
let (s, c) = symbol(";")(s)?;
Ok((s, IncludeStatement { nodes: (a, b, c) }))
}
//TODO support non literal path
#[parser]
pub fn file_path_spec(s: Span) -> IResult<Span, FilePathSpec> {
let (s, a) = string_literal(s)?;
Ok((s, FilePathSpec { nodes: (a,) }))
}
// -----------------------------------------------------------------------------
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_library_text() {
parser_test!(
library_text,
"library rtlLib \"*.v\" -incdir \"aaa\";\ninclude \"bbb\";;",
Ok((_, _))
);
}
}