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Use static array for codegen parameters info.

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This commit is contained in:
Stephen Chung 2021-03-25 14:02:50 +08:00
parent 1d661f2c8e
commit adbb5f8eb8
8 changed files with 233 additions and 774 deletions
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2
CHANGELOG.md
View File

@ -16,6 +16,8 @@ an object map is small.
`HashMap` and `BTreeMap` have almost identical public API's so this change is unlikely to break
existing code.
All function signature/metadata methods are now grouped under the umbrella `metadata` feature.
Breaking changes
----------------

64
codegen/src/function.rs
View File

@ -587,20 +587,14 @@ impl ExportedFn {
let name: syn::Ident =
syn::Ident::new(&format!("rhai_fn_{}", self.name()), self.name().span());
let impl_block = self.generate_impl("Token");
let callable_block = self.generate_callable("Token");
let param_names_block = self.generate_param_names("Token");
let input_types_block = self.generate_input_types("Token");
let dyn_result_fn_block = self.generate_dynamic_fn();
let vis = self.visibility;
quote! {
#[automatically_derived]
#vis mod #name {
use super::*;
struct Token();
pub struct Token();
#impl_block
#callable_block
#param_names_block
#input_types_block
#dyn_result_fn_block
}
}
@ -613,7 +607,7 @@ impl ExportedFn {
dynamic_signature.ident =
syn::Ident::new("dynamic_result_fn", proc_macro2::Span::call_site());
dynamic_signature.output = syn::parse2::<syn::ReturnType>(quote! {
-> Result<Dynamic, Box<EvalAltResult>>
-> RhaiResult
})
.unwrap();
let arguments: Vec<syn::Ident> = dynamic_signature
@ -649,48 +643,6 @@ impl ExportedFn {
}
}
pub fn generate_callable(&self, on_type_name: &str) -> proc_macro2::TokenStream {
let token_name: syn::Ident = syn::Ident::new(on_type_name, self.name().span());
let callable_fn_name: syn::Ident = syn::Ident::new(
&format!("{}_callable", on_type_name.to_lowercase()),
self.name().span(),
);
quote! {
#[inline(always)]
pub fn #callable_fn_name() -> CallableFunction {
#token_name().into()
}
}
}
pub fn generate_param_names(&self, on_type_name: &str) -> proc_macro2::TokenStream {
let token_name: syn::Ident = syn::Ident::new(on_type_name, self.name().span());
let param_names_fn_name: syn::Ident = syn::Ident::new(
&format!("{}_param_names", on_type_name.to_lowercase()),
self.name().span(),
);
quote! {
#[inline(always)]
pub fn #param_names_fn_name() -> Box<[&'static str]> {
#token_name().param_names()
}
}
}
pub fn generate_input_types(&self, on_type_name: &str) -> proc_macro2::TokenStream {
let token_name: syn::Ident = syn::Ident::new(on_type_name, self.name().span());
let input_types_fn_name: syn::Ident = syn::Ident::new(
&format!("{}_input_types", on_type_name.to_lowercase()),
self.name().span(),
);
quote! {
#[inline(always)]
pub fn #input_types_fn_name() -> Box<[TypeId]> {
#token_name().input_types()
}
}
}
pub fn generate_impl(&self, on_type_name: &str) -> proc_macro2::TokenStream {
let sig_name = self.name().clone();
let arg_count = self.arg_count();
@ -866,23 +818,19 @@ impl ExportedFn {
let type_name = syn::Ident::new(on_type_name, proc_macro2::Span::call_site());
quote! {
impl #type_name {
pub const PARAM_NAMES: &'static [&'static str] = &[#(#input_type_names,)* #return_type];
#[inline(always)] pub fn param_types() -> [TypeId; #arg_count] { [#(#input_type_exprs),*] }
}
impl PluginFunction for #type_name {
#[inline(always)]
fn call(&self, context: NativeCallContext, args: &mut [&mut Dynamic]) -> RhaiResult {
debug_assert_eq!(args.len(), #arg_count, "wrong arg count: {} != {}", args.len(), #arg_count);
#(#unpack_statements)*
#return_expr
}
#[inline(always)] fn is_method_call(&self) -> bool { #is_method_call }
#[inline(always)] fn is_variadic(&self) -> bool { false }
#[inline(always)] fn clone_boxed(&self) -> Box<dyn PluginFunction> { Box::new(#type_name()) }
#[inline(always)] fn param_names(&self) -> Box<[&'static str]> {
new_vec![#(#input_type_names,)* #return_type].into_boxed_slice()
}
#[inline(always)] fn input_types(&self) -> Box<[TypeId]> {
new_vec![#(#input_type_exprs),*].into_boxed_slice()
}
}
}
}

12
codegen/src/lib.rs
View File

@ -332,9 +332,9 @@ pub fn set_exported_fn(args: proc_macro::TokenStream) -> proc_macro::TokenStream
let gen_mod_path = crate::register::generated_module_path(&rust_mod_path);
proc_macro::TokenStream::from(quote! {
#module_expr.set_fn(#export_name, FnNamespace::Internal, FnAccess::Public,
Some(#gen_mod_path::token_param_names().as_ref()),
#gen_mod_path::token_input_types().as_ref(),
#gen_mod_path::token_callable());
Some(#gen_mod_path::Token::PARAM_NAMES),
&#gen_mod_path::Token::param_types(),
#gen_mod_path::Token().into());
})
}
Err(e) => e.to_compile_error().into(),
@ -373,9 +373,9 @@ pub fn set_exported_global_fn(args: proc_macro::TokenStream) -> proc_macro::Toke
let gen_mod_path = crate::register::generated_module_path(&rust_mod_path);
proc_macro::TokenStream::from(quote! {
#module_expr.set_fn(#export_name, FnNamespace::Global, FnAccess::Public,
Some(#gen_mod_path::token_param_names().as_ref()),
#gen_mod_path::token_input_types().as_ref(),
#gen_mod_path::token_callable());
Some(#gen_mod_path::Token::PARAM_NAMES),
&#gen_mod_path::Token::param_types(),
#gen_mod_path::Token().into());
})
}
Err(e) => e.to_compile_error().into(),

26
codegen/src/rhai_module.rs
View File

@ -1,6 +1,6 @@
use std::collections::BTreeMap;
use quote::{quote, ToTokens};
use quote::quote;
use crate::attrs::ExportScope;
use crate::function::{
@ -81,16 +81,6 @@ pub fn generate_body(
);
let reg_names = function.exported_names();
let fn_input_names: Vec<String> = function
.arg_list()
.map(|fn_arg| match fn_arg {
syn::FnArg::Receiver(_) => panic!("internal error: receiver fn outside impl!?"),
syn::FnArg::Typed(syn::PatType { pat, ty, .. }) => {
format!("{}: {}", pat.to_token_stream(), print_type(ty))
}
})
.collect();
let fn_input_types: Vec<syn::Expr> = function
.arg_list()
.map(|fn_arg| match fn_arg {
@ -128,17 +118,12 @@ pub fn generate_body(
};
syn::parse2::<syn::Expr>(quote! {
core::any::TypeId::of::<#arg_type>()})
TypeId::of::<#arg_type>()})
.unwrap()
}
})
.collect();
let return_type = function
.return_type()
.map(print_type)
.unwrap_or_else(|| "()".to_string());
for fn_literal in reg_names {
let mut namespace = FnNamespaceAccess::Internal;
@ -172,7 +157,7 @@ pub fn generate_body(
set_fn_statements.push(
syn::parse2::<syn::Stmt>(quote! {
m.set_fn(#fn_literal, FnNamespace::#ns_str, FnAccess::Public,
Some(&[#(#fn_input_names,)* #return_type]), &[#(#fn_input_types),*],
Some(#fn_token_name::PARAM_NAMES), &[#(#fn_input_types),*],
#fn_token_name().into());
})
.unwrap(),
@ -181,12 +166,9 @@ pub fn generate_body(
gen_fn_tokens.push(quote! {
#[allow(non_camel_case_types)]
struct #fn_token_name();
pub struct #fn_token_name();
});
gen_fn_tokens.push(function.generate_impl(&fn_token_name.to_string()));
gen_fn_tokens.push(function.generate_callable(&fn_token_name.to_string()));
gen_fn_tokens.push(function.generate_param_names(&fn_token_name.to_string()));
gen_fn_tokens.push(function.generate_input_types(&fn_token_name.to_string()));
}
let mut generate_fn_call = syn::parse2::<syn::ItemMod>(quote! {

199
codegen/src/test/function.rs
View File

@ -275,35 +275,21 @@ mod generate_tests {
#[automatically_derived]
pub mod rhai_fn_do_nothing {
use super::*;
struct Token();
pub struct Token();
impl Token {
pub const PARAM_NAMES: &'static [&'static str] = &["()"];
#[inline(always)] pub fn param_types() -> [TypeId; 0usize] { [] }
}
impl PluginFunction for Token {
#[inline(always)] fn call(&self, context: NativeCallContext, args: &mut [&mut Dynamic]) -> RhaiResult {
debug_assert_eq!(args.len(), 0usize,
"wrong arg count: {} != {}", args.len(), 0usize);
Ok(Dynamic::from(do_nothing()))
}
#[inline(always)] fn is_method_call(&self) -> bool { false }
#[inline(always)] fn is_variadic(&self) -> bool { false }
#[inline(always)] fn clone_boxed(&self) -> Box<dyn PluginFunction> { Box::new(Token()) }
#[inline(always)] fn param_names(&self) -> Box<[&'static str]> {
new_vec!["()"].into_boxed_slice()
}
#[inline(always)] fn input_types(&self) -> Box<[TypeId]> {
new_vec![].into_boxed_slice()
}
}
#[inline(always)] pub fn token_callable() -> CallableFunction {
Token().into()
}
#[inline(always)] pub fn token_param_names() -> Box<[&'static str]> {
Token().param_names()
}
#[inline(always)] pub fn token_input_types() -> Box<[TypeId]> {
Token().input_types()
}
#[allow(unused)]
#[inline(always)] pub fn dynamic_result_fn() -> Result<Dynamic, Box<EvalAltResult> > {
#[inline(always)] pub fn dynamic_result_fn() -> RhaiResult {
Ok(Dynamic::from(do_nothing()))
}
}
@ -323,37 +309,23 @@ mod generate_tests {
#[automatically_derived]
pub mod rhai_fn_do_something {
use super::*;
struct Token();
pub struct Token();
impl Token {
pub const PARAM_NAMES: &'static [&'static str] = &["x: usize", "()"];
#[inline(always)] pub fn param_types() -> [TypeId; 1usize] { [TypeId::of::<usize>()] }
}
impl PluginFunction for Token {
#[inline(always)]
fn call(&self, context: NativeCallContext, args: &mut [&mut Dynamic]) -> RhaiResult {
debug_assert_eq!(args.len(), 1usize,
"wrong arg count: {} != {}", args.len(), 1usize);
let arg0 = mem::take(args[0usize]).cast::<usize>();
Ok(Dynamic::from(do_something(arg0)))
}
#[inline(always)] fn is_method_call(&self) -> bool { false }
#[inline(always)] fn is_variadic(&self) -> bool { false }
#[inline(always)] fn clone_boxed(&self) -> Box<dyn PluginFunction> { Box::new(Token()) }
#[inline(always)] fn param_names(&self) -> Box<[&'static str]> {
new_vec!["x: usize", "()"].into_boxed_slice()
}
#[inline(always)] fn input_types(&self) -> Box<[TypeId]> {
new_vec![TypeId::of::<usize>()].into_boxed_slice()
}
}
#[inline(always)] pub fn token_callable() -> CallableFunction {
Token().into()
}
#[inline(always)] pub fn token_param_names() -> Box<[&'static str]> {
Token().param_names()
}
#[inline(always)] pub fn token_input_types() -> Box<[TypeId]> {
Token().input_types()
}
#[allow(unused)]
#[inline(always)] pub fn dynamic_result_fn(x: usize) -> Result<Dynamic, Box<EvalAltResult> > {
#[inline(always)] pub fn dynamic_result_fn(x: usize) -> RhaiResult {
Ok(Dynamic::from(do_something(x)))
}
}
@ -373,37 +345,23 @@ mod generate_tests {
#[automatically_derived]
pub mod rhai_fn_do_something {
use super::*;
struct Token();
pub struct Token();
impl Token {
pub const PARAM_NAMES: &'static [&'static str] = &["x: usize", "()"];
#[inline(always)] pub fn param_types() -> [TypeId; 1usize] { [TypeId::of::<usize>()] }
}
impl PluginFunction for Token {
#[inline(always)]
fn call(&self, context: NativeCallContext, args: &mut [&mut Dynamic]) -> RhaiResult {
debug_assert_eq!(args.len(), 1usize,
"wrong arg count: {} != {}", args.len(), 1usize);
let arg0 = mem::take(args[0usize]).cast::<usize>();
Ok(Dynamic::from(do_something(context, arg0)))
}
#[inline(always)] fn is_method_call(&self) -> bool { false }
#[inline(always)] fn is_variadic(&self) -> bool { false }
#[inline(always)] fn clone_boxed(&self) -> Box<dyn PluginFunction> { Box::new(Token()) }
#[inline(always)] fn param_names(&self) -> Box<[&'static str]> {
new_vec!["x: usize", "()"].into_boxed_slice()
}
#[inline(always)] fn input_types(&self) -> Box<[TypeId]> {
new_vec![TypeId::of::<usize>()].into_boxed_slice()
}
}
#[inline(always)] pub fn token_callable() -> CallableFunction {
Token().into()
}
#[inline(always)] pub fn token_param_names() -> Box<[&'static str]> {
Token().param_names()
}
#[inline(always)] pub fn token_input_types() -> Box<[TypeId]> {
Token().input_types()
}
#[allow(unused)]
#[inline(always)] pub fn dynamic_result_fn(context: NativeCallContext, x: usize) -> Result<Dynamic, Box<EvalAltResult> > {
#[inline(always)] pub fn dynamic_result_fn(context: NativeCallContext, x: usize) -> RhaiResult {
Ok(Dynamic::from(do_something(context, x)))
}
}
@ -426,36 +384,22 @@ mod generate_tests {
#[automatically_derived]
pub mod rhai_fn_return_dynamic {
use super::*;
struct Token();
pub struct Token();
impl Token {
pub const PARAM_NAMES: &'static [&'static str] = &["rhai::Dynamic"];
#[inline(always)] pub fn param_types() -> [TypeId; 0usize] { [] }
}
impl PluginFunction for Token {
#[inline(always)]
fn call(&self, context: NativeCallContext, args: &mut [&mut Dynamic]) -> RhaiResult {
debug_assert_eq!(args.len(), 0usize,
"wrong arg count: {} != {}", args.len(), 0usize);
Ok(Dynamic::from(return_dynamic()))
}
#[inline(always)] fn is_method_call(&self) -> bool { false }
#[inline(always)] fn is_variadic(&self) -> bool { false }
#[inline(always)] fn clone_boxed(&self) -> Box<dyn PluginFunction> { Box::new(Token()) }
#[inline(always)] fn param_names(&self) -> Box<[&'static str]> {
new_vec!["rhai::Dynamic"].into_boxed_slice()
}
#[inline(always)] fn input_types(&self) -> Box<[TypeId]> {
new_vec![].into_boxed_slice()
}
}
#[inline(always)] pub fn token_callable() -> CallableFunction {
Token().into()
}
#[inline(always)] pub fn token_param_names() -> Box<[&'static str]> {
Token().param_names()
}
#[inline(always)] pub fn token_input_types() -> Box<[TypeId]> {
Token().input_types()
}
#[allow(unused)]
#[inline(always)] pub fn dynamic_result_fn() -> Result<Dynamic, Box<EvalAltResult> > {
#[inline(always)] pub fn dynamic_result_fn() -> RhaiResult {
Ok(Dynamic::from(return_dynamic()))
}
}
@ -472,25 +416,20 @@ mod generate_tests {
};
let expected_tokens = quote! {
impl TestStruct {
pub const PARAM_NAMES: &'static [&'static str] = &["x: usize", "()"];
#[inline(always)] pub fn param_types() -> [TypeId; 1usize] { [TypeId::of::<usize>()] }
}
impl PluginFunction for TestStruct {
#[inline(always)]
fn call(&self, context: NativeCallContext, args: &mut [&mut Dynamic]) -> RhaiResult {
debug_assert_eq!(args.len(), 1usize,
"wrong arg count: {} != {}", args.len(), 1usize);
let arg0 = mem::take(args[0usize]).cast::<usize>();
Ok(Dynamic::from(do_something(arg0)))
}
#[inline(always)] fn is_method_call(&self) -> bool { false }
#[inline(always)] fn is_variadic(&self) -> bool { false }
#[inline(always)] fn clone_boxed(&self) -> Box<dyn PluginFunction> { Box::new(TestStruct()) }
#[inline(always)] fn param_names(&self) -> Box<[&'static str]> {
new_vec!["x: usize", "()"].into_boxed_slice()
}
#[inline(always)] fn input_types(&self) -> Box<[TypeId]> {
new_vec![TypeId::of::<usize>()].into_boxed_slice()
}
}
}
};
let item_fn = syn::parse2::<ExportedFn>(input_tokens).unwrap();
@ -507,12 +446,14 @@ mod generate_tests {
#[automatically_derived]
pub mod rhai_fn_add_together {
use super::*;
struct Token();
pub struct Token();
impl Token {
pub const PARAM_NAMES: &'static [&'static str] = &["x: usize", "y: usize", "usize"];
#[inline(always)] pub fn param_types() -> [TypeId; 2usize] { [TypeId::of::<usize>(), TypeId::of::<usize>()] }
}
impl PluginFunction for Token {
#[inline(always)]
fn call(&self, context: NativeCallContext, args: &mut [&mut Dynamic]) -> RhaiResult {
debug_assert_eq!(args.len(), 2usize,
"wrong arg count: {} != {}", args.len(), 2usize);
let arg0 = mem::take(args[0usize]).cast::<usize>();
let arg1 = mem::take(args[1usize]).cast::<usize>();
Ok(Dynamic::from(add_together(arg0, arg1)))
@ -520,26 +461,9 @@ mod generate_tests {
#[inline(always)] fn is_method_call(&self) -> bool { false }
#[inline(always)] fn is_variadic(&self) -> bool { false }
#[inline(always)] fn clone_boxed(&self) -> Box<dyn PluginFunction> { Box::new(Token()) }
#[inline(always)] fn param_names(&self) -> Box<[&'static str]> {
new_vec!["x: usize", "y: usize", "usize"].into_boxed_slice()
}
#[inline(always)] fn input_types(&self) -> Box<[TypeId]> {
new_vec![TypeId::of::<usize>(),
TypeId::of::<usize>()].into_boxed_slice()
}
}
#[inline(always)] pub fn token_callable() -> CallableFunction {
Token().into()
}
#[inline(always)] pub fn token_param_names() -> Box<[&'static str]> {
Token().param_names()
}
#[inline(always)] pub fn token_input_types() -> Box<[TypeId]> {
Token().input_types()
}
#[allow(unused)]
#[inline(always)] pub fn dynamic_result_fn(x: usize, y: usize) -> Result<Dynamic, Box<EvalAltResult> > {
#[inline(always)] pub fn dynamic_result_fn(x: usize, y: usize) -> RhaiResult {
Ok(Dynamic::from(add_together(x, y)))
}
}
@ -559,12 +483,14 @@ mod generate_tests {
#[automatically_derived]
pub mod rhai_fn_increment {
use super::*;
struct Token();
pub struct Token();
impl Token {
pub const PARAM_NAMES: &'static [&'static str] = &["x: &mut usize", "y: usize", "()"];
#[inline(always)] pub fn param_types() -> [TypeId; 2usize] { [TypeId::of::<usize>(), TypeId::of::<usize>()] }
}
impl PluginFunction for Token {
#[inline(always)]
fn call(&self, context: NativeCallContext, args: &mut [&mut Dynamic]) -> RhaiResult {
debug_assert_eq!(args.len(), 2usize,
"wrong arg count: {} != {}", args.len(), 2usize);
if args[0usize].is_read_only() {
return Err(Box::new(
EvalAltResult::ErrorAssignmentToConstant("x".to_string(), Position::NONE)
@ -577,26 +503,9 @@ mod generate_tests {
#[inline(always)] fn is_method_call(&self) -> bool { true }
#[inline(always)] fn is_variadic(&self) -> bool { false }
#[inline(always)] fn clone_boxed(&self) -> Box<dyn PluginFunction> { Box::new(Token()) }
#[inline(always)] fn param_names(&self) -> Box<[&'static str]> {
new_vec!["x: &mut usize", "y: usize", "()"].into_boxed_slice()
}
#[inline(always)] fn input_types(&self) -> Box<[TypeId]> {
new_vec![TypeId::of::<usize>(),
TypeId::of::<usize>()].into_boxed_slice()
}
}
#[inline(always)] pub fn token_callable() -> CallableFunction {
Token().into()
}
#[inline(always)] pub fn token_param_names() -> Box<[&'static str]> {
Token().param_names()
}
#[inline(always)] pub fn token_input_types() -> Box<[TypeId]> {
Token().input_types()
}
#[allow(unused)]
#[inline(always)] pub fn dynamic_result_fn(x: &mut usize, y: usize) -> Result<Dynamic, Box<EvalAltResult> > {
#[inline(always)] pub fn dynamic_result_fn(x: &mut usize, y: usize) -> RhaiResult {
Ok(Dynamic::from(increment(x, y)))
}
}
@ -617,37 +526,23 @@ mod generate_tests {
#[automatically_derived]
pub mod rhai_fn_special_print {
use super::*;
struct Token();
pub struct Token();
impl Token {
pub const PARAM_NAMES: &'static [&'static str] = &["message: &str", "()"];
#[inline(always)] pub fn param_types() -> [TypeId; 1usize] { [TypeId::of::<ImmutableString>()] }
}
impl PluginFunction for Token {
#[inline(always)]
fn call(&self, context: NativeCallContext, args: &mut [&mut Dynamic]) -> RhaiResult {
debug_assert_eq!(args.len(), 1usize,
"wrong arg count: {} != {}", args.len(), 1usize);
let arg0 = mem::take(args[0usize]).take_immutable_string().unwrap();
Ok(Dynamic::from(special_print(&arg0)))
}
#[inline(always)] fn is_method_call(&self) -> bool { false }
#[inline(always)] fn is_variadic(&self) -> bool { false }
#[inline(always)] fn clone_boxed(&self) -> Box<dyn PluginFunction> { Box::new(Token()) }
#[inline(always)] fn param_names(&self) -> Box<[&'static str]> {
new_vec!["message: &str", "()"].into_boxed_slice()
}
#[inline(always)] fn input_types(&self) -> Box<[TypeId]> {
new_vec![TypeId::of::<ImmutableString>()].into_boxed_slice()
}
}
#[inline(always)] pub fn token_callable() -> CallableFunction {
Token().into()
}
#[inline(always)] pub fn token_param_names() -> Box<[&'static str]> {
Token().param_names()
}
#[inline(always)] pub fn token_input_types() -> Box<[TypeId]> {
Token().input_types()
}
#[allow(unused)]
#[inline(always)] pub fn dynamic_result_fn(message: &str) -> Result<Dynamic, Box<EvalAltResult> > {
#[inline(always)] pub fn dynamic_result_fn(message: &str) -> RhaiResult {
Ok(Dynamic::from(special_print(message)))
}
}

691
codegen/src/test/module.rs
View File

File diff suppressed because it is too large Load Diff

2
codegen/ui_tests/rhai_mod_unknown_type.stderr
View File

@ -15,7 +15,7 @@ help: consider importing one of these items
|
11 | use core::fmt::Pointer;
|
11 | use crate::new_vec::fmt::Pointer;
11 | use crate::mem::fmt::Pointer;
|
11 | use std::fmt::Pointer;
|

11
src/plugin.rs
View File

@ -1,7 +1,7 @@
//! Module defining macros for developing _plugins_.
pub use crate::fn_native::{CallableFunction, FnCallArgs};
pub use crate::stdlib::{any::TypeId, boxed::Box, format, mem, string::ToString, vec as new_vec};
pub use crate::stdlib::{any::TypeId, boxed::Box, format, mem, string::ToString};
pub use crate::{
Dynamic, Engine, EvalAltResult, FnAccess, FnNamespace, ImmutableString, Module,
NativeCallContext, Position,
@ -26,13 +26,4 @@ pub trait PluginFunction {
/// Is this plugin function variadic?
fn is_variadic(&self) -> bool;
/// Convert a plugin function into a boxed trait object.
fn clone_boxed(&self) -> Box<dyn PluginFunction>;
/// Return a boxed slice of the names of the function's parameters and return type.
fn param_names(&self) -> Box<[&'static str]>;
/// Return a boxed slice of type ID's of the function's parameters.
fn input_types(&self) -> Box<[TypeId]>;
}