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use glsl_lang::ast::{self, SmolStr};
pub trait FunIdentifierExt {
fn as_ident_or_type_name(&self) -> Option<&SmolStr>;
fn as_ident_or_type_name_mut(&mut self) -> Option<&mut SmolStr>;
}
impl FunIdentifierExt for ast::FunIdentifier {
fn as_ident_or_type_name(&self) -> Option<&SmolStr> {
match &**self {
ast::FunIdentifierData::Expr(expr) => match &***expr {
ast::ExprData::Variable(ident) => Some(&ident.0),
_ => None,
},
ast::FunIdentifierData::TypeSpecifier(ts) => match &***ts {
ast::TypeSpecifierData {
ty:
ast::TypeSpecifierNonArray {
content: ast::TypeSpecifierNonArrayData::TypeName(tn),
..
},
array_specifier: None,
} => Some(&tn.0),
_ => None,
},
}
}
fn as_ident_or_type_name_mut(&mut self) -> Option<&mut SmolStr> {
match &mut **self {
ast::FunIdentifierData::Expr(expr) => match &mut ***expr {
ast::ExprData::Variable(ident) => Some(&mut ident.0),
_ => None,
},
ast::FunIdentifierData::TypeSpecifier(ts) => match &mut ***ts {
ast::TypeSpecifierData {
ty:
ast::TypeSpecifierNonArray {
content: ast::TypeSpecifierNonArrayData::TypeName(tn),
..
},
array_specifier: None,
} => Some(&mut tn.0),
_ => None,
},
}
}
}