private List <SyntaxNode> ReadExpressionOperands(SyntaxNode firstTerm)
{
List <SyntaxNode> operands = new List <SyntaxNode> {
firstTerm
};
while (NextTokenIsATermOperator())
{
tokens.AssertCanRead();
tokens.AssertPeekIsTypeOfOne(SyntaxTreeConstants.TermOperatorTypes);
AddToExpressionOperands(tokens.Next(), operands);
}
return(operands);
}
public void AssertPeekIsTypeOfOne_AdditionToken_ThrowsException()
{
Tokens tokens = new Tokens(new List <Token> {
new Token(TokenType.Addition)
});
Assert.Throws <UnexpectedTokenException>(() => tokens.AssertPeekIsTypeOfOne(
new List <TokenType> {
TokenType.Subtraction
}
));
}