internal void ParseExpression_OperatorPrecedence_MultiplicationLowerInTreeAdditionHigher()
{
var expectedAst = new AstBinaryExpression
{
Operator = CmdTokenKind.Plus,
Lhs = new AstNumberExpression
{
Value = "2"
},
Rhs = new AstBinaryExpression
{
Lhs = new AstNumberExpression
{
Value = "2"
},
Rhs = new AstNumberExpression
{
Value = "2"
},
Operator = CmdTokenKind.Star
}
};
AstAssert.Expression(expectedAst, "2+2*2");
}
internal void ParseExpression_OddNumberOfAddition()
{
var expectedAst = new AstBinaryExpression
{
Operator = CmdTokenKind.Plus,
Lhs = new AstBinaryExpression
{
Lhs = new AstNumberExpression
{
Value = "1"
},
Rhs = new AstNumberExpression
{
Value = "2"
},
Operator = CmdTokenKind.Plus
},
Rhs = new AstNumberExpression
{
Value = "3"
}
};
AstAssert.Expression(expectedAst, "1+2+3");
}
internal void ParseExpression_OddNumberOfMultiplication()
{
var expectedAst = new AstBinaryExpression
{
Operator = CmdTokenKind.Star,
Lhs = new AstBinaryExpression
{
Lhs = new AstNumberExpression
{
Value = "1"
},
Rhs = new AstNumberExpression
{
Value = "2"
},
Operator = CmdTokenKind.Star
},
Rhs = new AstNumberExpression
{
Value = "3"
},
};
AstAssert.Expression(expectedAst, "1*2*3");
}
internal void ParseExpression_ParenthesisPrecedence_AdditionInParenthesisLowerInAstTreeThanMultiplication()
{
var expectedAst = new AstBinaryExpression
{
Operator = CmdTokenKind.Star,
Lhs = new AstBinaryExpression
{
Lhs = new AstNumberExpression
{
Value = "1"
},
Rhs = new AstNumberExpression
{
Value = "2"
},
Operator = CmdTokenKind.Plus
},
Rhs = new AstNumberExpression
{
Value = "3"
},
};
AstAssert.Expression(expectedAst, "(1+2)*3");
}
internal void ParseExpression_UnaryExpression_SupportForPlusOperator()
{
var expectedAst = new AstUnaryExpression
{
Operator = CmdTokenKind.Plus,
Expression = new AstNumberExpression
{
Value = "6"
}
};
AstAssert.Expression(expectedAst, "+6");
}
internal void ParseExpression_DivisionSupport()
{
var expectedAst = new AstBinaryExpression
{
Operator = CmdTokenKind.Slash,
Lhs = new AstNumberExpression
{
Value = "1"
},
Rhs = new AstNumberExpression
{
Value = "2"
}
};
AstAssert.Expression(expectedAst, "1/2");
}
internal void ParseExpression_SubtractionSupport()
{
var expectedAst = new AstBinaryExpression
{
Operator = CmdTokenKind.Minus,
Lhs = new AstNumberExpression
{
Value = "1"
},
Rhs = new AstNumberExpression
{
Value = "2"
}
};
AstAssert.Expression(expectedAst, "1-2");
}
internal void ParseExpression_UnaryExpression_Precedence()
{
var expectedAst = new AstBinaryExpression
{
Operator = CmdTokenKind.Star,
Lhs = new AstUnaryExpression
{
Operator = CmdTokenKind.Minus,
Expression = new AstNumberExpression
{
Value = "6"
}
},
Rhs = new AstNumberExpression
{
Value = "2"
},
};
AstAssert.Expression(expectedAst, "-6*2");
}
public void ParseExpression_BooleanExpression_SupportFor()
{
var expectedAst = new AstBinaryExpression
{
Operator = CmdTokenKind.GreaterThan,
Lhs = new AstNumberExpression {
Value = "3"
},
Rhs = new AstBinaryExpression
{
Operator = CmdTokenKind.Plus,
Lhs = new AstNumberExpression {
Value = "1"
},
Rhs = new AstNumberExpression {
Value = "2"
},
}
};
AstAssert.Expression(expectedAst, "3>1+2");
}
