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//! Solidity file parser
pub mod diagnostics;
mod doc;
pub mod lexer;
pub mod pt;
pub use diagnostics::Diagnostic;
#[allow(clippy::all)]
pub mod solidity {
include!(concat!(env!("OUT_DIR"), "/solidity.rs"));
}
use lalrpop_util::ParseError;
/// Parse soldiity file content
pub fn parse(src: &str, file_no: usize) -> Result<pt::SourceUnit, Vec<Diagnostic>> {
// parse phase
let lex = lexer::Lexer::new(src);
let s = solidity::SourceUnitParser::new().parse(src, file_no, lex);
if let Err(e) = s {
let errors = vec![match e {
ParseError::InvalidToken { location } => Diagnostic::parser_error(
pt::Loc(file_no, location, location),
"invalid token".to_string(),
),
ParseError::UnrecognizedToken {
token: (l, token, r),
expected,
} => Diagnostic::parser_error(
pt::Loc(file_no, l, r),
format!(
"unrecognised token `{}', expected {}",
token,
expected.join(", ")
),
),
ParseError::User { error } => {
Diagnostic::parser_error(error.loc(file_no), error.to_string())
}
ParseError::ExtraToken { token } => Diagnostic::parser_error(
pt::Loc(file_no, token.0, token.2),
format!("extra token `{}' encountered", token.0),
),
ParseError::UnrecognizedEOF { location, expected } => Diagnostic::parser_error(
pt::Loc(file_no, location, location),
format!("unexpected end of file, expecting {}", expected.join(", ")),
),
}];
Err(errors)
} else {
Ok(s.unwrap())
}
}
pub fn box_option<T>(o: Option<T>) -> Option<Box<T>> {
o.map(Box::new)
}
#[cfg(test)]
mod test {
use super::lexer;
use super::pt::*;
use super::solidity;
#[test]
fn parse_test() {
let src = "contract foo {
struct Jurisdiction {
bool exists;
uint keyIdx;
bytes2 country;
bytes32 region;
}
string __abba_$;
int64 $thing_102;
}";
let lex = lexer::Lexer::new(src);
let e = solidity::SourceUnitParser::new()
.parse(src, 0, lex)
.unwrap();
let a = SourceUnit(vec![SourceUnitPart::ContractDefinition(Box::new(
ContractDefinition {
doc: vec![],
loc: Loc(0, 0, 13),
ty: ContractTy::Contract(Loc(0, 0, 8)),
name: Identifier {
loc: Loc(0, 9, 12),
name: "foo".to_string(),
},
base: Vec::new(),
parts: vec![
ContractPart::StructDefinition(Box::new(StructDefinition {
doc: vec![],
name: Identifier {
loc: Loc(0, 42, 54),
name: "Jurisdiction".to_string(),
},
loc: Loc(0, 35, 232),
fields: vec![
VariableDeclaration {
loc: Loc(0, 81, 92),
ty: Expression::Type(Loc(0, 81, 85), Type::Bool),
storage: None,
name: Identifier {
loc: Loc(0, 86, 92),
name: "exists".to_string(),
},
},
VariableDeclaration {
loc: Loc(0, 118, 129),
ty: Expression::Type(Loc(0, 118, 122), Type::Uint(256)),
storage: None,
name: Identifier {
loc: Loc(0, 123, 129),
name: "keyIdx".to_string(),
},
},
VariableDeclaration {
loc: Loc(0, 155, 169),
ty: Expression::Type(Loc(0, 155, 161), Type::Bytes(2)),
storage: None,
name: Identifier {
loc: Loc(0, 162, 169),
name: "country".to_string(),
},
},
VariableDeclaration {
loc: Loc(0, 195, 209),
ty: Expression::Type(Loc(0, 195, 202), Type::Bytes(32)),
storage: None,
name: Identifier {
loc: Loc(0, 203, 209),
name: "region".to_string(),
},
},
],
})),
ContractPart::VariableDefinition(Box::new(VariableDefinition {
doc: vec![],
ty: Expression::Type(Loc(0, 253, 259), Type::String),
attrs: vec![],
name: Identifier {
loc: Loc(0, 260, 268),
name: "__abba_$".to_string(),
},
loc: Loc(0, 253, 268),
initializer: None,
})),
ContractPart::VariableDefinition(Box::new(VariableDefinition {
doc: vec![],
ty: Expression::Type(Loc(0, 290, 295), Type::Int(64)),
attrs: vec![],
name: Identifier {
loc: Loc(0, 296, 306),
name: "$thing_102".to_string(),
},
loc: Loc(0, 290, 306),
initializer: None,
})),
],
},
))]);
assert_eq!(e, a);
}
}