b2285ce0e0
Just's first parser performed both parsing, i.e the transformation of a token stream according to the language grammar, and a number of consistency checks and analysis passes. This made parsing and analysis quite complex, so this diff introduces a new, much cleaner `Parser`, and moves existing analysis into a dedicated `Analyzer`.
28 lines
853 B
Rust
28 lines
853 B
Rust
use crate::common::*;
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#[derive(Debug)]
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pub(crate) enum OutputError {
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/// Non-zero exit code
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Code(i32),
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/// IO error
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Io(io::Error),
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/// Terminated by signal
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Signal(i32),
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/// Unknown failure
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Unknown,
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/// Stdout not UTF-8
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Utf8(std::str::Utf8Error),
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}
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impl Display for OutputError {
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fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
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match *self {
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OutputError::Code(code) => write!(f, "Process exited with status code {}", code),
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OutputError::Io(ref io_error) => write!(f, "Error executing process: {}", io_error),
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OutputError::Signal(signal) => write!(f, "Process terminated by signal {}", signal),
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OutputError::Unknown => write!(f, "Process experienced an unknown failure"),
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OutputError::Utf8(ref err) => write!(f, "Could not convert process stdout to UTF-8: {}", err),
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}
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}
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}
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