Trim down feature again

crates/rune-macros/Cargo.toml

@@ -13,9 +13,6 @@ license = "MIT OR Apache-2.0"
 keywords = ["language", "scripting", "scripting-language"]
 categories = ["parser-implementations"]
 
-[features]
-dynamic_fields = []
-
 [dependencies]
 rune-core = { version = "=0.13.1", path = "../rune-core", features = ["std"] }
 syn = { version = "2.0.16", features = ["full"] }

crates/rune-macros/src/any.rs

@@ -532,8 +532,6 @@ where
             mut_,
             ref_,
             vm_try,
-            dynamic_field_search,
-            dynamic_field_mode,
             ..
         } = &tokens;
 
@@ -647,30 +645,6 @@ where
             } else {
                 quote!(#hash::new(#type_hash))
             };
-            #[cfg(feature = "dynamic_fields")]
-            let meta_fields = if let Some(meta_fields) = attr.meta_fields {
-                quote! {
-                    #[automatically_derived]
-                impl #impl_generics #dynamic_field_search for #ident #type_generics #where_clause {
-                    const DYNAMIC_FIELD_MODE: #dynamic_field_mode = #dynamic_field_mode::#meta_fields;
-                }
-                }
-            } else {
-                quote! {
-                    #[automatically_derived]
-                impl #impl_generics #dynamic_field_search for #ident #type_generics #where_clause {
-                    const DYNAMIC_FIELD_MODE: #dynamic_field_mode = #dynamic_field_mode::Never;
-                }
-                }
-            };
-
-            #[cfg(not(feature = "dynamic_fields"))]
-            let meta_fields = quote! {
-                #[automatically_derived]
-                impl #impl_generics #dynamic_field_search for #ident #type_generics #where_clause {
-                    const DYNAMIC_FIELD_MODE: #dynamic_field_mode = #dynamic_field_mode::Never;
-                }
-            };
 
             Some(quote! {
                 #[automatically_derived]
@@ -680,8 +654,6 @@ where
                     }
                 }
 
-                #meta_fields
-
                 #[automatically_derived]
                 impl #impl_generics #unsafe_to_ref for #ident #type_generics #where_clause {
                     type Guard = #raw_into_ref;

crates/rune-macros/src/context.rs

@@ -2,7 +2,7 @@ use std::cell::RefCell;
 
 use proc_macro2::Span;
 use proc_macro2::TokenStream;
-use quote::{format_ident, quote_spanned};
+use quote::quote_spanned;
 use quote::{quote, ToTokens};
 use syn::parse::ParseStream;
 use syn::punctuated::Punctuated;
@@ -86,10 +86,6 @@ pub(crate) struct TypeAttr {
     pub(crate) from_value: Option<syn::Path>,
     /// Method to use to convert from value.
     pub(crate) from_value_params: Option<syn::punctuated::Punctuated<syn::Type, Token![,]>>,
-    #[cfg(feature = "dynamic_fields")]
-    /// `#[rune(meta_fields = never|first|last|only)]` to allow meta fields on a type
-    /// and when to access.
-    pub(crate) meta_fields: Option<syn::Ident>,
 }
 
 /// Parsed variant attributes.
@@ -478,30 +474,6 @@ impl Context {
                         syn::bracketed!(content in meta.input);
                         attr.from_value_params =
                             Some(syn::punctuated::Punctuated::parse_terminated(&content)?);
-                    } else if meta.path == META_FIELDS {
-                        #[cfg(not(feature = "dynamic_fields"))]
-                        return Err(syn::Error::new_spanned(
-                            &meta.path,
-                            "Dynamic fields feature flag \"dynamic_fields\" is not enabled",
-                        ));
-                        #[cfg(feature = "dynamic_fields")]
-                        {
-                            meta.input.parse::<Token![=]>()?;
-                            let ty: syn::Ident = meta.input.parse()?;
-                            let value = match ty.to_string().as_str() {
-                                "never" => Some(format_ident!("Never")),
-                                "first" => Some(format_ident!("First")),
-                                "last" => Some(format_ident!("Last")),
-                                "only" => Some(format_ident!("Only")),
-                                _ => {
-                                    return Err(syn::Error::new_spanned(
-                                        &meta.path,
-                                        "Expected `never`, `only`, `first` or `last`",
-                                    ))
-                                }
-                            };
-                            attr.meta_fields = value;
-                        }
                     } else {
                         return Err(syn::Error::new_spanned(
                             &meta.path,
@@ -632,8 +604,6 @@ impl Context {
             from_value: path(m, ["runtime", "FromValue"]),
             full_type_of: path(m, ["runtime", "FullTypeOf"]),
             hash: path(m, ["Hash"]),
-            dynamic_field_search: path(m, ["DynamicFieldSearch"]),
-            dynamic_field_mode: path(m, ["DynamicFieldMode"]),
             id: path(m, ["parse", "Id"]),
             install_with: path(m, ["__private", "InstallWith"]),
             into_iterator: path(&core, ["iter", "IntoIterator"]),
@@ -726,8 +696,6 @@ pub(crate) struct Tokens {
     pub(crate) from_value: syn::Path,
     pub(crate) full_type_of: syn::Path,
     pub(crate) hash: syn::Path,
-    pub(crate) dynamic_field_search: syn::Path,
-    pub(crate) dynamic_field_mode: syn::Path,
     pub(crate) id: syn::Path,
     pub(crate) install_with: syn::Path,
     pub(crate) into_iterator: syn::Path,

crates/rune-macros/src/internals.rs

@@ -26,7 +26,6 @@ pub const STATIC_TYPE: Symbol = Symbol("static_type");
 pub const FROM_VALUE: Symbol = Symbol("from_value");
 pub const FROM_VALUE_PARAMS: Symbol = Symbol("from_value_params");
 
-pub const META_FIELDS: Symbol = Symbol("meta_fields");
 pub const GET: Symbol = Symbol("get");
 pub const SET: Symbol = Symbol("set");
 pub const COPY: Symbol = Symbol("copy");

crates/rune/Cargo.toml

@@ -17,7 +17,7 @@ categories = ["parser-implementations"]
 default = ["emit", "std"]
 emit = ["std", "codespan-reporting"]
 bench = []
-workspace = ["std", "toml", "semver", "relative-path", "serde-hashkey", "linked-hash-map", "dynamic_fields"]
+workspace = ["std", "toml", "semver", "relative-path", "serde-hashkey", "linked-hash-map"]
 doc = ["std", "rust-embed", "handlebars", "pulldown-cmark", "syntect", "sha2", "base64", "rune-core/doc", "relative-path"]
 cli = ["std", "emit", "doc", "bincode", "atty", "tracing-subscriber", "clap", "webbrowser", "capture-io", "disable-io", "languageserver", "fmt", "similar", "rand"]
 languageserver = ["std", "lsp", "ropey", "percent-encoding", "url", "serde_json", "tokio", "workspace", "doc", "fmt"]
@@ -27,7 +27,7 @@ disable-io = ["alloc"]
 fmt = ["alloc"]
 std = ["alloc", "num/std", "serde/std", "rune-core/std", "rune-alloc/std", "musli/std", "musli-storage/std", "once_cell/std", "anyhow/std"]
 alloc = ["anyhow", "rune-alloc/alloc", "rune-core/alloc", "once_cell/alloc", "serde/alloc"]
-dynamic_fields = ["rune-macros/dynamic_fields"]
+dynamic_fields = []
 
 [dependencies]
 rune-macros = { version = "=0.13.1", path = "../rune-macros" }

crates/rune/src/any.rs

@@ -55,7 +55,6 @@ pub use rune_macros::Any;
 
 use crate::compile::Named;
 use crate::hash::Hash;
-use crate::DynamicFieldSearch;
 
 /// A trait which can be stored inside of an [AnyObj](crate::runtime::AnyObj).
 ///
@@ -74,7 +73,7 @@ use crate::DynamicFieldSearch;
 /// }
 /// ```
 
-pub trait Any: Named + DynamicFieldSearch + any::Any {
+pub trait Any: Named + any::Any {
     /// The type hash of the type.
     ///
     /// TODO: make const field when `TypeId::of` is const.

crates/rune/src/compile.rs

@@ -50,7 +50,6 @@ mod unit_builder;
 pub(crate) mod v1;
 
 mod compile;
-pub(crate) mod dynamic_fields;
 mod location;
 pub mod meta;
 mod named;

crates/rune/src/lib.rs

@@ -478,10 +478,7 @@ pub use rune_macros::module;
 pub use self::any::Any;
 pub use self::build::{prepare, Build, BuildError};
 #[doc(inline)]
-pub use self::compile::{
-    dynamic_fields::{DynamicFieldMode, DynamicFieldSearch},
-    Context, ContextError, Options,
-};
+pub use self::compile::{Context, ContextError, Options};
 #[doc(inline)]
 pub use self::diagnostics::Diagnostics;
 pub use self::hash::{Hash, ToTypeHash};

crates/rune/src/runtime/any_obj.rs

@@ -11,8 +11,6 @@ use crate::alloc::{self, Box};
 use crate::any::Any;
 use crate::hash::Hash;
 use crate::runtime::{AnyTypeInfo, FullTypeOf, MaybeTypeOf, RawStr, TypeInfo};
-#[cfg(feature = "dynamic_fields")]
-use crate::{DynamicFieldMode, DynamicFieldSearch};
 
 /// Errors raised during casting operations.
 #[derive(Debug)]
@@ -84,8 +82,6 @@ impl AnyObj {
                 debug: debug_impl::<T>,
                 type_name: type_name_impl::<T>,
                 type_hash: type_hash_impl::<T>,
-                #[cfg(feature = "dynamic_fields")]
-                field_mode: T::DYNAMIC_FIELD_MODE,
             },
             data,
         })
@@ -144,8 +140,6 @@ impl AnyObj {
                 debug: debug_ref_impl::<T>,
                 type_name: type_name_impl::<T>,
                 type_hash: type_hash_impl::<T>,
-                #[cfg(feature = "dynamic_fields")]
-                field_mode: T::DYNAMIC_FIELD_MODE,
             },
             data,
         }
@@ -196,8 +190,6 @@ impl AnyObj {
                 debug: debug_ref_impl::<T::Target>,
                 type_name: type_name_impl::<T::Target>,
                 type_hash: type_hash_impl::<T::Target>,
-                #[cfg(feature = "dynamic_fields")]
-                field_mode: T::Target::DYNAMIC_FIELD_MODE,
             },
             data,
         })
@@ -262,8 +254,6 @@ impl AnyObj {
                 debug: debug_mut_impl::<T>,
                 type_name: type_name_impl::<T>,
                 type_hash: type_hash_impl::<T>,
-                #[cfg(feature = "dynamic_fields")]
-                field_mode: T::DYNAMIC_FIELD_MODE,
             },
             data,
         }
@@ -314,8 +304,6 @@ impl AnyObj {
                 debug: debug_mut_impl::<T::Target>,
                 type_name: type_name_impl::<T::Target>,
                 type_hash: type_hash_impl::<T::Target>,
-                #[cfg(feature = "dynamic_fields")]
-                field_mode: T::Target::DYNAMIC_FIELD_MODE,
             },
             data,
         })
@@ -514,12 +502,6 @@ impl AnyObj {
             (self.vtable.type_hash)(),
         ))
     }
-
-    #[cfg(feature = "dynamic_fields")]
-    /// Access the dynamic field mode for the type.
-    pub fn field_mode(&self) -> DynamicFieldMode {
-        self.vtable.field_mode
-    }
 }
 
 impl MaybeTypeOf for AnyObj {
@@ -582,8 +564,6 @@ pub struct AnyObjVtable {
     type_name: TypeNameFn,
     /// Get the type hash of the stored type.
     type_hash: TypeHashFn,
-    #[cfg(feature = "dynamic_fields")]
-    field_mode: DynamicFieldMode,
 }
 
 unsafe fn drop_impl<T>(this: *mut ()) {

crates/rune/src/runtime/value.rs

@@ -11,8 +11,6 @@ use ::serde::{Deserialize, Serialize};
 use crate::alloc::fmt::TryWrite;
 use crate::alloc::prelude::*;
 use crate::alloc::{self, String};
-#[cfg(feature = "dynamic_fields")]
-use crate::compile::dynamic_fields::DynamicFieldMode;
 use crate::compile::ItemBuf;
 use crate::runtime::vm::CallResult;
 use crate::runtime::{
@@ -1213,17 +1211,6 @@ impl Value {
         })
     }
 
-    #[cfg(feature = "dynamic_fields")]
-    /// Function returns the method in which to search for fields within
-    /// the value.
-    pub(crate) fn field_mode(&self) -> Result<DynamicFieldMode, VmError> {
-        if let Value::Any(v) = self {
-            Ok(v.borrow_ref()?.field_mode())
-        } else {
-            Ok(DynamicFieldMode::Never)
-        }
-    }
-
     /// Perform a partial equality test between two values.
     ///
     /// This is the basis for the eq operation (`partial_eq` / '==').