90 lines
1.9 KiB
Rust
90 lines
1.9 KiB
Rust
use std::fmt::{Debug, Display, Error, Formatter};
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use super::PseudoOp;
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use crate::tokens::MpsToken;
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#[derive(Debug)]
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pub struct SyntaxError {
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pub line: usize,
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pub token: MpsToken,
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pub got: Option<MpsToken>,
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}
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impl Display for SyntaxError {
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
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match &self.got {
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Some(t) => write!(
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f,
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"SyntaxError (line {}): Expected {}, got {}",
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&self.line, &self.token, t
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),
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None => write!(
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f,
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"SyntaxError (line {}): Expected {}, got nothing",
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&self.line, &self.token
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),
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}
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}
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}
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impl MpsLanguageError for SyntaxError {
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fn set_line(&mut self, line: usize) {
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self.line = line
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}
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}
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#[derive(Debug, Clone)]
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pub struct RuntimeError {
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pub line: usize,
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pub op: PseudoOp,
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pub msg: String,
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}
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impl RuntimeError {
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pub fn decompose(self) -> (RuntimeOp, RuntimeMsg) {
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(RuntimeOp(self.op), RuntimeMsg(self.msg))
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}
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}
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impl Display for RuntimeError {
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
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write!(f, "{} (line {}): {}", &self.msg, &self.line, &self.op)
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}
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}
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impl MpsLanguageError for RuntimeError {
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fn set_line(&mut self, line: usize) {
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self.line = line
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}
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}
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pub trait MpsLanguageError: Display + Debug {
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fn set_line(&mut self, line: usize);
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}
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// RuntimeError builder components
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#[derive(Debug, Clone)]
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pub struct RuntimeMsg(pub String);
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impl RuntimeMsg {
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pub fn with(self, op: RuntimeOp) -> RuntimeError {
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RuntimeError {
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line: 0,
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op: op.0,
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msg: self.0,
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}
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}
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}
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#[derive(Debug, Clone)]
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pub struct RuntimeOp(pub PseudoOp);
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impl RuntimeOp {
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pub fn with(self, msg: RuntimeMsg) -> RuntimeError {
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RuntimeError {
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line: 0,
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op: self.0,
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msg: msg.0,
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}
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}
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}
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