Enum TopEntryPoint

pub enum TopEntryPoint {
    SourceFile,
    MacroStmts,
    MacroItems,
    Pattern,
    Type,
    Expr,
    MetaItem,
}

Parse the whole of the input as a given syntactic construct.

This covers two main use-cases:

• Parsing a Rust file.
• Parsing a result of macro expansion.

That is, for something like

quick_check! {
   fn prop() {}
}

the input to the macro will be parsed with PrefixEntryPoint::Item, and the result will be TopEntryPoint::MacroItems.

TopEntryPoint::parse makes a guarantee that

• all input is consumed
• the result is a valid tree (there’s one root node)

Variants

SourceFile

MacroStmts

MacroItems

Pattern

Type

Expr

MetaItem

Edge case – macros generally don’t expand to attributes, with the exception of cfg_attr which does!

Implementations

impl TopEntryPoint

pub fn parse(&self, input: &Input, edition: Edition) -> Output

Trait Implementations

impl Debug for TopEntryPoint

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

Formats the value using the given formatter.