Function parse_primary_expression

crates/gitql-parser/src/parser.rs:3286–3338

(
    context: &mut ParserContext,
    env: &mut Environment,
    tokens: &[Token],
    position: &mut usize,
)

}

fn parse_primary_expression(
    context: &mut ParserContext,
    env: &mut Environment,
    tokens: &[Token],
    position: &mut usize,
) -> Result<Box<dyn Expr>, Box<Diagnostic>> {
    if *position >= tokens.len() {
        return Err(un_expected_expression_error(tokens, position));
    }

    match &tokens[*position].kind {
        TokenKind::Integer(value) => {
            *position += 1;
            Ok(Box::new(NumberExpr::int(*value)))
        }
        TokenKind::Float(value) => {
            *position += 1;
            Ok(Box::new(NumberExpr::float(*value)))
        }
        TokenKind::Infinity => parse_float_infinity_or_nan_expression(tokens, position),
        TokenKind::NaN => parse_float_infinity_or_nan_expression(tokens, position),
        TokenKind::Symbol(_) => parse_symbol_expression(context, env, tokens, position),
        TokenKind::Array => parse_array_value_expression(context, env, tokens, position),
        TokenKind::LeftBracket => parse_array_value_expression(context, env, tokens, position),
        TokenKind::LeftParen => {
            parse_column_or_row_expression(context, env, tokens, position, false)
        }
        TokenKind::Row => parse_column_or_row_expression(context, env, tokens, position, true),
        TokenKind::Case => parse_case_expression(context, env, tokens, position),
        TokenKind::Cast => parse_cast_call_expression(context, env, tokens, position),
        TokenKind::Benchmark => parse_benchmark_call_expression(context, env, tokens, position),
        TokenKind::GlobalVariable(_) => parse_global_variable_expression(env, tokens, position),
        TokenKind::Interval => parse_interval_expression(tokens, position),
        TokenKind::String(str) => {
            *position += 1;
            let value = str.to_string();
            Ok(Box::new(StringExpr { value }))
        }
        TokenKind::True => {
            *position += 1;
            Ok(Box::new(BooleanExpr { is_true: true }))
        }
        TokenKind::False => {
            *position += 1;
            Ok(Box::new(BooleanExpr { is_true: false }))
        }
        TokenKind::Null => {
            *position += 1;
            Ok(Box::new(NullExpr {}))
        }
        _ => Err(un_expected_expression_error(tokens, position)),
    }
}

fn parse_float_infinity_or_nan_expression(
    tokens: &[Token],