Enum TestExpr 

pub enum TestExpr {
    False,
    Literal(String),
    And(Box<TestExpr>, Box<TestExpr>),
    Or(Box<TestExpr>, Box<TestExpr>),
    Not(Box<TestExpr>),
    Parenthesized(Box<TestExpr>),
    UnaryTest(UnaryPredicate, String),
    BinaryTest(BinaryPredicate, String, String),
}

A (non-extended) test expression.

Variants

False

Always evaluates to false.

Literal(String)

A literal string.

And(Box<TestExpr>, Box<TestExpr>)

Logical AND operation on two nested expressions.

Or(Box<TestExpr>, Box<TestExpr>)

Logical OR operation on two nested expressions.

Not(Box<TestExpr>)

Logical NOT operation on a nested expression.

Parenthesized(Box<TestExpr>)

A parenthesized expression.

UnaryTest(UnaryPredicate, String)

A unary test operation.

BinaryTest(BinaryPredicate, String, String)

A binary test operation.

Trait Implementations

impl Clone for TestExpr

fn clone(&self) -> TestExpr

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TestExpr

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for TestExpr

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl SourceLocation for TestExpr

fn location(&self) -> Option<SourceSpan>

The location of the syntax item, when known

impl Node for TestExpr