src/main/java/org/shedlang/compiler/tokeniser/UnexpectedTokenException.java


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package org.shedlang.compiler.tokeniser;

import org.shedlang.compiler.errors.SourceError;
import org.shedlang.compiler.sources.FileFragmentSource;

public class UnexpectedTokenException extends SourceError {
    private final String expected;
    private final Token<?> actual;

    public UnexpectedTokenException(
        String expected,
        Token<?> actual
    ) {
        super(
            "Expected: " + expected + "\nBut got: " + actual.tokenType() + " \"" + actual.value() + "\"",
            new FileFragmentSource(actual.sourceRange())
        );
        this.expected = expected;
        this.actual = actual;
    }

    public String getExpected() {
        return expected;
    }

    public Token<?> getActual() {
        return actual;
    }
}