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Implement std::error::Error for ParserError#72

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Merged
nickolay merged 1 commit into from
May 29, 2019
Merged

Implement std::error::Error for ParserError #72

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16 changes: 16 additions & 0 deletions src/sqlparser.rs
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Original file line numberDiff line numberDiff line change
Expand Up@@ -20,6 +20,7 @@ use super::dialect::keywords;
use super::dialect::Dialect;
use super::sqlast::*;
use super::sqltokenizer::*;
use std::error::Error;

#[derive(Debug, Clone, PartialEq)]
pub enum ParserError {
Expand DownExpand Up@@ -47,6 +48,21 @@ impl From<TokenizerError> for ParserError {
}
}

impl std::fmt::Display for ParserError {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(
f,
"sql parser error: {}",
match self {
ParserError::TokenizerError(s) => s,
ParserError::ParserError(s) => s,
}
)
}
}

impl Error for ParserError {}

/// SQL Parser
pub struct Parser {
tokens: Vec<Token>,
Expand Down