cynic-codegen 3.13.2

Procedural macro code generation for cynic - a code first GraphQL client for Rust
Documentation 
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use crate::RenameAll;

use super::to_camel_case;

/// A wrapper around proc_macro2::Ident for a struct field that keeps
/// track of whether the given field needs renamed to map to a graphql
/// field.
pub struct RenamableFieldIdent {
    ident: proc_macro2::Ident,
    renamed: Option<(String, proc_macro2::Span)>,
}

impl From<proc_macro2::Ident> for RenamableFieldIdent {
    fn from(ident: proc_macro2::Ident) -> Self {
        RenamableFieldIdent {
            ident,
            renamed: None,
        }
    }
}

impl RenamableFieldIdent {
    pub fn set_rename(&mut self, rename: String, rename_span: proc_macro2::Span) {
        self.renamed = Some((rename, rename_span));
    }

    pub fn rename_with(&mut self, rule: RenameAll, rename_span: proc_macro2::Span) {
        self.renamed = Some((rule.apply(self.ident.to_string()), rename_span))
    }

    pub fn graphql_name(&self) -> String {
        if let Some((rename, _)) = &self.renamed {
            return rename.clone();
        }

        to_camel_case(&self.ident.to_string())
    }

    pub fn span(&self) -> proc_macro2::Span {
        if let Some((_, span)) = &self.renamed {
            return *span;
        }

        self.ident.span()
    }
}