Enum PragmaTokens

pub enum PragmaTokens<'ast> {
    Version(Ident, SemverReq<'ast>),
    Custom(IdentOrStrLit, Option<IdentOrStrLit>),
    Verbatim(BoxSlice<'ast, Token>),
}

The parsed or unparsed tokens of a pragma directive.

Variants

Version(Ident, SemverReq<'ast>)

A Semantic Versioning requirement: pragma solidity <req>;.

Note that this is parsed differently from the semver crate.

Custom(IdentOrStrLit, Option<IdentOrStrLit>)

pragma <name> [value];.

Verbatim(BoxSlice<'ast, Token>)

Unparsed tokens: pragma <tokens...>;.

Implementations

impl PragmaTokens<'_>

pub fn as_name_and_value( &self, ) -> Option<(&IdentOrStrLit, Option<&IdentOrStrLit>)>

Returns the name and value of the pragma directive, if any.

Examples

pragma solidity ...;          // None
pragma abicoder v2;           // Some((Ident("abicoder"), Some(Ident("v2"))))
pragma experimental solidity; // Some((Ident("experimental"), Some(Ident("solidity"))))
pragma hello;                 // Some((Ident("hello"), None))
pragma hello world;           // Some((Ident("hello"), Some(Ident("world"))))
pragma hello "world";         // Some((Ident("hello"), Some(StrLit("world"))))
pragma "hello" world;         // Some((StrLit("hello"), Some(Ident("world"))))
pragma ???;                   // None

Trait Implementations

impl<'ast> Debug for PragmaTokens<'ast>

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

Formats the value using the given formatter.