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Generate useful error for TA input "s"

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see #15
This commit is contained in:
Arne Keller 2021-07-19 11:06:56 +02:00
parent 0285305f13
commit 5e6cb6ca4c
2 changed files with 13 additions and 1 deletions
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4
src/main/java/edu/kit/typicalc/model/parser/TypeAssumptionParser.java
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@ -172,7 +172,9 @@ public class TypeAssumptionParser {
if (t.getType() == TokenType.COLON) {
return new ParserResult<>(new ExpectingTypeDef(alreadyParsed, var));
} else {
return new ParserResult<>(ParseError.unexpectedToken(t, ParseError.ErrorType.TYPE_ASSUMPTION_ERROR));
return new ParserResult<>(ParseError
.unexpectedToken(t, ParseError.ErrorType.TYPE_ASSUMPTION_ERROR)
.expectedType(TokenType.COLON));
}
}
}

10
src/test/java/edu/kit/typicalc/model/parser/TypeAssumptionParserTest.java
View File

@ -349,6 +349,16 @@ class TypeAssumptionParserTest {
assertEquals(Token.TokenType.EOF, e.getCause().get().getType());
}
@Test
void errorCase3() {
ParseError e = parse("s");
assertEquals(ParseError
.unexpectedToken(new Token(Token.TokenType.EOF, "", "s", 1),
ParseError.ErrorType.TYPE_ASSUMPTION_ERROR)
.expectedType(Token.TokenType.COLON),
e);
}
static ParseError parse(String input) {
return new TypeAssumptionParser().parse(input).unwrapError();
}