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992f990fa8
... by applying a transformation. This allows designing a path in some other path design tool and then make it fit using bindings.
906 lines
37 KiB
Rust
906 lines
37 KiB
Rust
/*! module for the Rust code generator
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*/
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use crate::diagnostics::{CompilerDiagnostic, Diagnostics};
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use crate::expression_tree::{Expression, NamedReference, OperatorClass, Path};
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use crate::object_tree::{Component, ElementRc};
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use crate::parser::Spanned;
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use crate::typeregister::Type;
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use proc_macro2::TokenStream;
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use quote::quote;
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use std::rc::Rc;
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fn rust_type(
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ty: &Type,
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span: &crate::diagnostics::Span,
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) -> Result<proc_macro2::TokenStream, CompilerDiagnostic> {
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match ty {
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Type::Int32 => Ok(quote!(i32)),
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Type::Float32 => Ok(quote!(f32)),
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Type::String => Ok(quote!(sixtyfps::re_exports::SharedString)),
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Type::Color => Ok(quote!(sixtyfps::re_exports::Color)),
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Type::Bool => Ok(quote!(bool)),
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Type::Object(o) => {
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let elem = o.values().map(|v| rust_type(v, span)).collect::<Result<Vec<_>, _>>()?;
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// This will produce a tuple
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Ok(quote!((#(#elem,)*)))
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}
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_ => Err(CompilerDiagnostic {
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message: "Cannot map property type to Rust".into(),
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span: span.clone(),
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}),
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}
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}
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/// Generate the rust code for the given component.
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///
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/// Fill the diagnostic in case of error.
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pub fn generate(component: &Rc<Component>, diag: &mut Diagnostics) -> Option<TokenStream> {
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let mut extra_components = vec![];
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let mut declared_property_vars = vec![];
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let mut declared_property_types = vec![];
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let mut declared_signals = vec![];
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let mut property_and_signal_accessors: Vec<TokenStream> = vec![];
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for (prop_name, property_decl) in component.root_element.borrow().property_declarations.iter() {
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let prop_ident = quote::format_ident!("{}", prop_name);
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if property_decl.property_type == Type::Signal {
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declared_signals.push(prop_ident.clone());
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if property_decl.expose_in_public_api {
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let emitter_ident = quote::format_ident!("emit_{}", prop_name);
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property_and_signal_accessors.push(
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quote!(
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#[allow(dead_code)]
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fn #emitter_ident(self: ::core::pin::Pin<&Self>) {
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let eval_context = sixtyfps::re_exports::EvaluationContext::for_root_component(
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sixtyfps::re_exports::ComponentRef::new_pin(self)
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);
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Self::field_offsets().#prop_ident.apply_pin(self).emit(&eval_context, ())
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}
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)
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.into(),
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);
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}
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} else {
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declared_property_vars.push(prop_ident.clone());
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let rust_property_type =
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rust_type(&property_decl.property_type, &property_decl.type_location)
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.unwrap_or_else(|err| {
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diag.push_compiler_error(err);
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quote!().into()
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});
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declared_property_types.push(rust_property_type.clone());
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if property_decl.expose_in_public_api {
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let getter_ident = quote::format_ident!("get_{}", prop_name);
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let setter_ident = quote::format_ident!("set_{}", prop_name);
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property_and_signal_accessors.push(
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quote!(
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#[allow(dead_code)]
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fn #getter_ident(self: ::core::pin::Pin<&Self>) -> #rust_property_type {
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let eval_context = sixtyfps::re_exports::EvaluationContext::for_root_component(
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sixtyfps::re_exports::ComponentRef::new_pin(self)
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);
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Self::field_offsets().#prop_ident.apply_pin(self).get(&eval_context)
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}
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)
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.into(),
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);
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property_and_signal_accessors.push(
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quote!(
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#[allow(dead_code)]
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fn #setter_ident(&self, value: #rust_property_type) {
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Self::field_offsets().#prop_ident.apply(self).set(value)
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}
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)
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.into(),
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);
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}
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}
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}
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if diag.has_error() {
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return None;
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}
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let component_id = component_id(component);
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let mut item_tree_array = Vec::new();
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let mut item_names = Vec::new();
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let mut item_types = Vec::new();
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let mut repeated_element_names = Vec::new();
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let mut repeated_element_components = Vec::new();
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let mut repeated_dynmodel_names = Vec::new();
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let mut repeated_visit_branch = Vec::new();
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let mut init = Vec::new();
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let mut init_repeaters = Vec::new();
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super::build_array_helper(component, |item_rc, children_index| {
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let item = item_rc.borrow();
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if let Some(repeated) = &item.repeated {
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let base_component = match &item.base_type {
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Type::Component(c) => c,
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_ => panic!("should be a component because of the repeater_component pass"),
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};
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let repeater_index = repeated_element_names.len();
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let repeater_id = quote::format_ident!("repeater_{}", repeater_index);
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let rep_component_id = self::component_id(&*base_component);
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extra_components.push(generate(&*base_component, diag).unwrap_or_else(|| {
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assert!(diag.has_error());
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Default::default()
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}));
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extra_components.push(if repeated.is_conditional_element {
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quote! {
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impl sixtyfps::re_exports::RepeatedComponent for #rep_component_id {
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type Data = ();
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fn update(&self, _: usize, _: Self::Data) { }
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}
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}
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} else {
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let data_type = rust_type(
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&Expression::RepeaterModelReference { element: Rc::downgrade(item_rc) }.ty(),
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&item.node.as_ref().map_or_else(Default::default, |n| n.span()),
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)
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.unwrap_or_else(|err| {
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diag.push_compiler_error(err);
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quote!().into()
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});
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quote! {
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impl sixtyfps::re_exports::RepeatedComponent for #rep_component_id {
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type Data = #data_type;
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fn update(&self, index: usize, data: Self::Data) {
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self.index.set(index);
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self.model_data.set(data)
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}
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}
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}
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});
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let mut model = compile_expression(&repeated.model, component);
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if repeated.is_conditional_element {
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model = quote!((if #model {Some(())} else {None}).iter().cloned())
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}
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if repeated.model.is_constant() {
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init_repeaters.push(quote! {
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self_pinned.#repeater_id.update_model(#model, || {
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let mut new_comp = #rep_component_id::default();
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new_comp.parent = self_pinned.self_weak.get().unwrap().clone();
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new_comp
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});
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});
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repeated_visit_branch.push(quote!(
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#repeater_index => self_pinned.#repeater_id.visit(visitor),
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));
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} else {
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let model_name = quote::format_ident!("model_{}", repeater_index);
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repeated_visit_branch.push(quote!(
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#repeater_index => {
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if self_pinned.#model_name.is_dirty() {
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#component_id::field_offsets().#model_name.apply_pin(self_pinned).evaluate(|| {
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let _self = self_pinned.clone();
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// FIXME: this should not be the root_component (but that's fine as we no longer access the parent)
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let context = sixtyfps::re_exports::EvaluationContext::for_root_component(
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sixtyfps::re_exports::ComponentRef::new_pin(_self)
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);
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let context = &context;
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self_pinned.#repeater_id.update_model(#model, || {
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let mut new_comp = #rep_component_id::default();
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new_comp.parent = self_pinned.self_weak.get().unwrap().clone();
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new_comp
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});
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});
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}
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self_pinned.#repeater_id.visit(visitor)
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}
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));
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repeated_dynmodel_names.push(model_name);
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}
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item_tree_array.push(quote!(
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sixtyfps::re_exports::ItemTreeNode::DynamicTree {
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index: #repeater_index,
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}
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));
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repeated_element_names.push(repeater_id);
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repeated_element_components.push(rep_component_id);
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} else {
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let field_name = quote::format_ident!("{}", item.id);
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let children_count = item.children.len() as u32;
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item_tree_array.push(quote!(
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sixtyfps::re_exports::ItemTreeNode::Item{
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item: VOffset::new(#component_id::field_offsets().#field_name),
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chilren_count: #children_count,
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children_index: #children_index,
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}
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));
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for (k, binding_expression) in &item.bindings {
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let rust_property_ident = quote::format_ident!("{}", k);
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let rust_property_accessor_prefix = if item.property_declarations.contains_key(k) {
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proc_macro2::TokenStream::new()
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} else {
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quote!(#field_name.)
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};
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let rust_property = quote!(#rust_property_accessor_prefix#rust_property_ident);
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let tokens_for_expression = compile_expression(binding_expression, &component);
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if matches!(item.lookup_property(k.as_str()), Type::Signal) {
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init.push(quote!(
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self_.#rust_property.set_handler(|context, ()| {
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let _self = context.get_component::<#component_id>().unwrap();
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#tokens_for_expression;
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});
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));
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} else {
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if binding_expression.is_constant() {
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let setter = property_set_value_tokens(
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component,
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&item_rc,
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k,
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quote!((#tokens_for_expression) as _),
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);
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init.push(quote!(
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self_.#rust_property.#setter;
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));
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} else {
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let setter = property_set_binding_tokens(
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component,
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&item_rc,
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k,
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quote!(
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|context| {
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let _self = context.get_component::<#component_id>().unwrap();
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(#tokens_for_expression) as _
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}
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),
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);
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init.push(quote!(
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self_.#rust_property.#setter;
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));
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}
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}
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}
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item_names.push(field_name);
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item_types.push(quote::format_ident!("{}", item.base_type.as_builtin().class_name));
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}
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});
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let resource_symbols: Vec<proc_macro2::TokenStream> = component
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.embedded_file_resources
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.borrow()
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.iter()
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.map(|(path, id)| {
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let symbol = quote::format_ident!("SFPS_EMBEDDED_RESOURCE_{}", id);
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quote!(const #symbol: &'static [u8] = ::core::include_bytes!(#path);)
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})
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.collect();
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let layouts = compute_layout(component);
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let mut parent_component_type = None;
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if let Some(parent_element) = component.parent_element.upgrade() {
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if !parent_element.borrow().repeated.as_ref().map_or(false, |r| r.is_conditional_element) {
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declared_property_vars.push(quote::format_ident!("index"));
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declared_property_types.push(quote!(usize));
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declared_property_vars.push(quote::format_ident!("model_data"));
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declared_property_types.push(
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rust_type(
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&Expression::RepeaterModelReference {
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element: component.parent_element.clone(),
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}
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.ty(),
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&parent_element
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.borrow()
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.node
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.as_ref()
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.map_or_else(Default::default, |n| n.span()),
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)
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.unwrap_or_else(|err| {
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diag.push_compiler_error(err);
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quote!().into()
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}),
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);
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}
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parent_component_type = Some(self::component_id(
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&parent_element.borrow().enclosing_component.upgrade().unwrap(),
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));
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} else {
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property_and_signal_accessors.push(quote! {
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fn run(self) {
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use sixtyfps::re_exports::*;
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let window = sixtyfps::create_window();
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let self_pinned = Rc::pin(self);
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self_pinned.self_weak.set(WeakPin::downgrade(self_pinned.clone()))
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.map_err(|_|())
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.expect("Can only be pinned once");
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#(#init_repeaters)*
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window.run(VRef::new_pin(self_pinned.as_ref()));
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}
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});
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};
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// Trick so we can use `#()` as a `if let Some` in `quote!`
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let parent_component_type = parent_component_type.iter().collect::<Vec<_>>();
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if diag.has_error() {
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return None;
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}
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Some(quote!(
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#(#resource_symbols)*
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#[derive(sixtyfps::re_exports::FieldOffsets)]
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#[const_field_offset(sixtyfps::re_exports::const_field_offset)]
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#[repr(C)]
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#[pin]
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struct #component_id {
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#(#item_names : sixtyfps::re_exports::#item_types,)*
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#(#declared_property_vars : sixtyfps::re_exports::Property<#declared_property_types>,)*
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#(#declared_signals : sixtyfps::re_exports::Signal<()>,)*
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#(#repeated_element_names : sixtyfps::re_exports::Repeater<#repeated_element_components>,)*
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#(#repeated_dynmodel_names : sixtyfps::re_exports::PropertyListenerScope,)*
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self_weak: sixtyfps::re_exports::OnceCell<sixtyfps::re_exports::WeakPin<#component_id>>,
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#(parent : sixtyfps::re_exports::WeakPin<#parent_component_type>,)*
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}
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impl ::core::default::Default for #component_id {
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fn default() -> Self {
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#![allow(unused)]
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use sixtyfps::re_exports::*;
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ComponentVTable_static!(static VT for #component_id);
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let mut self_ = Self {
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#(#item_names : ::core::default::Default::default(),)*
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#(#declared_property_vars : ::core::default::Default::default(),)*
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#(#declared_signals : ::core::default::Default::default(),)*
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#(#repeated_element_names : ::core::default::Default::default(),)*
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#(#repeated_dynmodel_names : ::core::default::Default::default(),)*
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self_weak : ::core::default::Default::default(),
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#(parent : sixtyfps::re_exports::WeakPin::<#parent_component_type>::default(),)*
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};
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#(#init)*
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self_
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}
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}
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impl sixtyfps::re_exports::Component for #component_id {
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fn visit_children_item(self: ::core::pin::Pin<&Self>, index: isize, visitor: sixtyfps::re_exports::ItemVisitorRefMut) {
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use sixtyfps::re_exports::*;
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let tree = &[#(#item_tree_array),*];
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sixtyfps::re_exports::visit_item_tree(self, VRef::new_pin(self), tree, index, visitor, visit_dynamic);
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#[allow(unused)]
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fn visit_dynamic(self_pinned: ::core::pin::Pin<&#component_id>, visitor: ItemVisitorRefMut, dyn_index: usize) {
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match dyn_index {
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#(#repeated_visit_branch)*
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_ => panic!("invalid dyn_index {}", dyn_index),
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}
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}
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}
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#layouts
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}
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impl #component_id{
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#(#property_and_signal_accessors)*
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}
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#(#extra_components)*
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))
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}
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/// Return an identifier suitable for this component
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fn component_id(component: &Component) -> proc_macro2::Ident {
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if component.id.is_empty() {
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let s = &component.root_element.borrow().id;
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// Capitalize first leter:
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let mut it = s.chars();
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let id =
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it.next().map(|c| c.to_ascii_uppercase()).into_iter().chain(it).collect::<String>();
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quote::format_ident!("{}", id)
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} else {
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quote::format_ident!("{}", component.id)
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}
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}
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fn property_animation_tokens(
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component: &Rc<Component>,
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element: &ElementRc,
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property_name: &str,
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) -> Option<TokenStream> {
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if let Some(animation) = element.borrow().property_animations.get(property_name) {
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let bindings: Vec<TokenStream> = animation
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.borrow()
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.bindings
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.iter()
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.map(|(prop, initializer)| {
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let prop_ident = quote::format_ident!("{}", prop);
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let initializer = compile_expression(initializer, component);
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quote!(#prop_ident: #initializer as _)
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})
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.collect();
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Some(quote!(&sixtyfps::re_exports::PropertyAnimation{
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#(#bindings)*,
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..::core::default::Default::default()
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}))
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} else {
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None
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}
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}
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fn property_set_value_tokens(
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component: &Rc<Component>,
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element: &ElementRc,
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property_name: &str,
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value_tokens: TokenStream,
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) -> TokenStream {
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if let Some(animation_tokens) = property_animation_tokens(component, element, property_name) {
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quote!(set_animated_value(#value_tokens, #animation_tokens))
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} else {
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quote!(set(#value_tokens))
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}
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}
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fn property_set_binding_tokens(
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component: &Rc<Component>,
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element: &ElementRc,
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property_name: &str,
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binding_tokens: TokenStream,
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) -> TokenStream {
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if let Some(animation_tokens) = property_animation_tokens(component, element, property_name) {
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quote!(set_animated_binding(#binding_tokens, #animation_tokens))
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} else {
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quote!(set_binding(#binding_tokens))
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}
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}
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/// Returns the code that can access the given property or signal from the context (but without the set or get)
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///
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/// to be used like:
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/// ```ignore
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/// let (access, context) = access_member(...)
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/// quote!(#access.get(#context))
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/// ```
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fn access_member(
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element: &ElementRc,
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name: &str,
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component: &Rc<Component>,
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context: TokenStream,
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component_rust: TokenStream,
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) -> (TokenStream, TokenStream) {
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let e = element.borrow();
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let enclosing_component = e.enclosing_component.upgrade().unwrap();
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if Rc::ptr_eq(component, &enclosing_component) {
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|
let component_id = component_id(&enclosing_component);
|
|
let name_ident = quote::format_ident!("{}", name);
|
|
if e.property_declarations.contains_key(name) {
|
|
(quote!(#component_id::field_offsets().#name_ident.apply_pin(#component_rust)), context)
|
|
} else {
|
|
let elem_ident = quote::format_ident!("{}", e.id);
|
|
let elem_ty = quote::format_ident!("{}", e.base_type.as_builtin().class_name);
|
|
(
|
|
quote!((#component_id::field_offsets().#elem_ident + #elem_ty::field_offsets().#name_ident)
|
|
.apply_pin(#component_rust)
|
|
),
|
|
context,
|
|
)
|
|
}
|
|
} else {
|
|
access_member(
|
|
element,
|
|
name,
|
|
&component
|
|
.parent_element
|
|
.upgrade()
|
|
.unwrap()
|
|
.borrow()
|
|
.enclosing_component
|
|
.upgrade()
|
|
.unwrap(),
|
|
quote!((&sixtyfps::re_exports::EvaluationContext::for_root_component(#context.component))),
|
|
quote!(#component_rust.parent.upgrade().unwrap().as_ref()),
|
|
)
|
|
}
|
|
}
|
|
|
|
fn compile_expression(e: &Expression, component: &Rc<Component>) -> TokenStream {
|
|
match e {
|
|
Expression::StringLiteral(s) => quote!(sixtyfps::re_exports::SharedString::from(#s)),
|
|
Expression::NumberLiteral(n) => quote!(#n),
|
|
Expression::BoolLiteral(b) => quote!(#b),
|
|
Expression::Cast { from, to } => {
|
|
let f = compile_expression(&*from, &component);
|
|
match (from.ty(), to) {
|
|
(Type::Float32, Type::String) | (Type::Int32, Type::String) => {
|
|
quote!(sixtyfps::re_exports::SharedString::from(format!("{}", #f).as_str()))
|
|
}
|
|
(Type::Float32, Type::Model) | (Type::Int32, Type::Model) => quote!((0..#f as i32)),
|
|
(Type::Array(_), Type::Model) => quote!(#f.iter().cloned()),
|
|
(Type::Float32, Type::Color) => {
|
|
quote!(sixtyfps::re_exports::Color::from(#f as u32))
|
|
}
|
|
_ => f,
|
|
}
|
|
}
|
|
Expression::PropertyReference(NamedReference { element, name }) => {
|
|
let (access, context) = access_member(
|
|
&element.upgrade().unwrap(),
|
|
name.as_str(),
|
|
component,
|
|
quote!(context),
|
|
quote!(_self),
|
|
);
|
|
quote!(#access.get(#context))
|
|
}
|
|
Expression::RepeaterIndexReference { element } => {
|
|
if element.upgrade().unwrap().borrow().base_type == Type::Component(component.clone()) {
|
|
let component_id = component_id(&component);
|
|
quote!({ #component_id::field_offsets().index.apply_pin(_self).get(context) })
|
|
} else {
|
|
todo!();
|
|
}
|
|
}
|
|
Expression::RepeaterModelReference { element } => {
|
|
if element.upgrade().unwrap().borrow().base_type == Type::Component(component.clone()) {
|
|
let component_id = component_id(&component);
|
|
quote!({ #component_id::field_offsets().model_data.apply_pin(_self).get(context) })
|
|
} else {
|
|
todo!();
|
|
}
|
|
}
|
|
Expression::ObjectAccess { base, name } => {
|
|
let index = if let Type::Object(ty) = base.ty() {
|
|
ty.keys()
|
|
.position(|k| k == name)
|
|
.expect("Expression::ObjectAccess: Cannot find a key in an object")
|
|
} else {
|
|
panic!("Expression::ObjectAccess's base expression is not an Object type")
|
|
};
|
|
let index = proc_macro2::Literal::usize_unsuffixed(index);
|
|
let base_e = compile_expression(base, component);
|
|
quote!((#base_e).#index )
|
|
}
|
|
Expression::CodeBlock(sub) => {
|
|
let map = sub.iter().map(|e| compile_expression(e, &component));
|
|
quote!({ #(#map);* })
|
|
}
|
|
Expression::SignalReference(NamedReference { element, name, .. }) => {
|
|
let (access, context) = access_member(
|
|
&element.upgrade().unwrap(),
|
|
name.as_str(),
|
|
component,
|
|
quote!(context),
|
|
quote!(_self),
|
|
);
|
|
quote!(#access.emit(#context, ()))
|
|
}
|
|
Expression::FunctionCall { function } => {
|
|
if matches!(function.ty(), Type::Signal) {
|
|
compile_expression(function, &component)
|
|
} else {
|
|
let error = format!("the function {:?} is not a signal", e);
|
|
quote!(compile_error! {#error})
|
|
}
|
|
}
|
|
Expression::SelfAssignment { lhs, rhs, op } => match &**lhs {
|
|
Expression::PropertyReference(NamedReference { element, name }) => {
|
|
let (lhs, context) = access_member(
|
|
&element.upgrade().unwrap(),
|
|
name.as_str(),
|
|
component,
|
|
quote!(context),
|
|
quote!(_self),
|
|
);
|
|
let rhs = compile_expression(&*rhs, &component);
|
|
let op = proc_macro2::Punct::new(*op, proc_macro2::Spacing::Alone);
|
|
quote!( #lhs.set(#lhs.get(#context) #op &((#rhs) as _) ))
|
|
}
|
|
_ => panic!("typechecking should make sure this was a PropertyReference"),
|
|
},
|
|
Expression::BinaryExpression { lhs, rhs, op } => {
|
|
let conv = match crate::expression_tree::operator_class(*op) {
|
|
OperatorClass::ArithmeticOp => Some(quote!(as f64)),
|
|
OperatorClass::ComparisonOp if matches!(lhs.ty(), Type::Int32 | Type::Float32) => {
|
|
Some(quote!(as f64))
|
|
}
|
|
_ => None,
|
|
};
|
|
let lhs = compile_expression(&*lhs, &component);
|
|
let rhs = compile_expression(&*rhs, &component);
|
|
|
|
let op = match op {
|
|
'=' => quote!(==),
|
|
'!' => quote!(!=),
|
|
'≤' => quote!(<=),
|
|
'≥' => quote!(>=),
|
|
'&' => quote!(&&),
|
|
'|' => quote!(||),
|
|
_ => proc_macro2::TokenTree::Punct(proc_macro2::Punct::new(
|
|
*op,
|
|
proc_macro2::Spacing::Alone,
|
|
))
|
|
.into(),
|
|
};
|
|
quote!( ((#lhs #conv ) #op (#rhs #conv )) )
|
|
}
|
|
Expression::UnaryOp { sub, op } => {
|
|
let sub = compile_expression(&*sub, &component);
|
|
let op = proc_macro2::Punct::new(*op, proc_macro2::Spacing::Alone);
|
|
quote!( #op #sub )
|
|
}
|
|
Expression::ResourceReference { absolute_source_path } => {
|
|
if let Some(id) = component.embedded_file_resources.borrow().get(absolute_source_path) {
|
|
let symbol = quote::format_ident!("SFPS_EMBEDDED_RESOURCE_{}", id);
|
|
quote!(sixtyfps::re_exports::Resource::EmbeddedData(#symbol.into()))
|
|
} else {
|
|
quote!(sixtyfps::re_exports::Resource::AbsoluteFilePath(sixtyfps::re_exports::SharedString::from(#absolute_source_path)))
|
|
}
|
|
}
|
|
Expression::Condition { condition, true_expr, false_expr } => {
|
|
let condition_code = compile_expression(&*condition, component);
|
|
let true_code = compile_expression(&*true_expr, component);
|
|
let false_code = compile_expression(&*false_expr, component);
|
|
quote!(
|
|
if #condition_code {
|
|
#true_code
|
|
} else {
|
|
(#false_code) as _
|
|
}
|
|
)
|
|
}
|
|
Expression::Invalid | Expression::Uncompiled(_) => {
|
|
let error = format!("unsupported expression {:?}", e);
|
|
quote!(compile_error! {#error})
|
|
}
|
|
Expression::Array { values, .. } => {
|
|
//let rust_element_ty = rust_type(&element_ty, &Default::default());
|
|
let val = values.iter().map(|e| compile_expression(e, component));
|
|
quote!([#(#val as _),*])
|
|
}
|
|
Expression::Object { ty, values } => {
|
|
if let Type::Object(ty) = ty {
|
|
let elem = ty.iter().map(|(k, t)| {
|
|
values.get(k).map(|e| {
|
|
let ce = compile_expression(e, component);
|
|
let t = rust_type(t, &Default::default()).unwrap_or_default();
|
|
quote!(#ce as #t)
|
|
})
|
|
});
|
|
// This will produce a tuple
|
|
quote!((#(#elem,)*))
|
|
} else {
|
|
panic!("Expression::Object is not a Type::Object")
|
|
}
|
|
}
|
|
Expression::PathElements { elements } => compile_path(elements, component),
|
|
}
|
|
}
|
|
|
|
fn compute_layout(component: &Rc<Component>) -> TokenStream {
|
|
let mut layouts = vec![];
|
|
for grid_layout in component.layout_constraints.borrow().grids.iter() {
|
|
let within = quote::format_ident!("{}", grid_layout.within.borrow().id);
|
|
let within_ty = quote::format_ident!(
|
|
"{}",
|
|
grid_layout.within.borrow().base_type.as_builtin().class_name
|
|
);
|
|
let row_constraint = vec![quote!(Constraint::default()); grid_layout.row_count()];
|
|
let col_constraint = vec![quote!(Constraint::default()); grid_layout.col_count()];
|
|
let cells = grid_layout
|
|
.elems
|
|
.iter()
|
|
.map(|x| {
|
|
x.iter()
|
|
.map(|y| {
|
|
y.as_ref()
|
|
.map(|elem| {
|
|
let e = quote::format_ident!("{}", elem.borrow().id);
|
|
let p = |n: &str| {
|
|
if elem.borrow().lookup_property(n) == Type::Float32 {
|
|
let n = quote::format_ident!("{}", n);
|
|
quote! {Some(&self.#e.#n)}
|
|
} else {
|
|
quote! {None}
|
|
}
|
|
};
|
|
let width = p("width");
|
|
let height = p("height");
|
|
let x = p("x");
|
|
let y = p("y");
|
|
quote!(GridLayoutCellData {
|
|
x: #x,
|
|
y: #y,
|
|
width: #width,
|
|
height: #height,
|
|
})
|
|
})
|
|
.unwrap_or_else(|| quote!(GridLayoutCellData::default()))
|
|
})
|
|
.collect::<Vec<_>>()
|
|
})
|
|
.collect::<Vec<_>>();
|
|
|
|
let x_pos = compile_expression(&*grid_layout.x_reference, &component);
|
|
let y_pos = compile_expression(&*grid_layout.y_reference, &component);
|
|
|
|
layouts.push(quote! {
|
|
solve_grid_layout(&GridLayoutData {
|
|
row_constraint: Slice::from_slice(&[#(#row_constraint),*]),
|
|
col_constraint: Slice::from_slice(&[#(#col_constraint),*]),
|
|
width: (Self::field_offsets().#within + #within_ty::field_offsets().width)
|
|
.apply_pin(self).get(context),
|
|
height: (Self::field_offsets().#within + #within_ty::field_offsets().height)
|
|
.apply_pin(self).get(context),
|
|
x: #x_pos,
|
|
y: #y_pos,
|
|
cells: Slice::from_slice(&[#( Slice::from_slice(&[#( #cells ),*])),*]),
|
|
});
|
|
});
|
|
}
|
|
|
|
for path_layout in component.layout_constraints.borrow().paths.iter() {
|
|
let items = path_layout
|
|
.elements
|
|
.iter()
|
|
.map(|elem| {
|
|
let e = quote::format_ident!("{}", elem.borrow().id);
|
|
let p = |n: &str| {
|
|
if elem.borrow().lookup_property(n) == Type::Float32 {
|
|
let n = quote::format_ident!("{}", n);
|
|
quote! {Some(&self.#e.#n)}
|
|
} else {
|
|
quote! {None}
|
|
}
|
|
};
|
|
let x = p("x");
|
|
let y = p("y");
|
|
quote!(PathLayoutItemData {
|
|
x: #x,
|
|
y: #y,
|
|
})
|
|
})
|
|
.collect::<Vec<_>>();
|
|
|
|
let path = compile_path(&path_layout.path, &component);
|
|
|
|
let x_pos = compile_expression(&*path_layout.x_reference, &component);
|
|
let y_pos = compile_expression(&*path_layout.y_reference, &component);
|
|
let width = compile_expression(&*path_layout.width_reference, &component);
|
|
let height = compile_expression(&*path_layout.width_reference, &component);
|
|
|
|
layouts.push(quote! {
|
|
solve_path_layout(&PathLayoutData {
|
|
items: Slice::from_slice(&[#( #items ),*]),
|
|
elements: &#path,
|
|
x: #x_pos,
|
|
y: #y_pos,
|
|
width: #width,
|
|
height: #height,
|
|
});
|
|
});
|
|
}
|
|
|
|
quote! {
|
|
fn layout_info(self: ::core::pin::Pin<&Self>) -> sixtyfps::re_exports::LayoutInfo {
|
|
todo!("Implement in rust.rs")
|
|
}
|
|
fn compute_layout(self: ::core::pin::Pin<&Self>, context: &sixtyfps::re_exports::EvaluationContext) {
|
|
#![allow(unused)]
|
|
use sixtyfps::re_exports::*;
|
|
let dummy = Property::<f32>::default();
|
|
let _self = self;
|
|
|
|
#(#layouts)*
|
|
}
|
|
}
|
|
}
|
|
|
|
fn compile_path_events(events: &crate::expression_tree::PathEvents) -> TokenStream {
|
|
use lyon::path::Event;
|
|
|
|
let mut coordinates = Vec::new();
|
|
|
|
let converted_events: Vec<proc_macro2::TokenStream> = events
|
|
.iter()
|
|
.map(|event| match event {
|
|
Event::Begin { at } => {
|
|
coordinates.push(at);
|
|
quote!(sixtyfps::re_exports::PathEvent::Begin)
|
|
}
|
|
Event::Line { from, to } => {
|
|
coordinates.push(from);
|
|
coordinates.push(to);
|
|
quote!(sixtyfps::re_exports::PathEvent::Line)
|
|
}
|
|
Event::Quadratic { from, ctrl, to } => {
|
|
coordinates.push(from);
|
|
coordinates.push(ctrl);
|
|
coordinates.push(to);
|
|
quote!(sixtyfps::re_exports::PathEvent::Quadratic)
|
|
}
|
|
Event::Cubic { from, ctrl1, ctrl2, to } => {
|
|
coordinates.push(from);
|
|
coordinates.push(ctrl1);
|
|
coordinates.push(ctrl2);
|
|
coordinates.push(to);
|
|
quote!(sixtyfps::re_exports::PathEvent::Cubic)
|
|
}
|
|
Event::End { last, first, close } => {
|
|
debug_assert_eq!(coordinates.first(), Some(&first));
|
|
debug_assert_eq!(coordinates.last(), Some(&last));
|
|
if *close {
|
|
quote!(sixtyfps::re_exports::PathEvent::EndClosed)
|
|
} else {
|
|
quote!(sixtyfps::re_exports::PathEvent::EndOpen)
|
|
}
|
|
}
|
|
})
|
|
.collect();
|
|
|
|
let coordinates: Vec<TokenStream> = coordinates
|
|
.into_iter()
|
|
.map(|pt| {
|
|
let x = pt.x;
|
|
let y = pt.y;
|
|
quote!(sixtyfps::re_exports::Point::new(#x, #y))
|
|
})
|
|
.collect();
|
|
|
|
quote!(sixtyfps::re_exports::SharedArray::<sixtyfps::re_exports::PathEvent>::from(&[#(#converted_events),*]),
|
|
sixtyfps::re_exports::SharedArray::<sixtyfps::re_exports::Point>::from(&[#(#coordinates),*]))
|
|
}
|
|
|
|
fn compile_path(path: &Path, component: &Rc<Component>) -> TokenStream {
|
|
match path {
|
|
Path::Elements(elements) => {
|
|
let converted_elements: Vec<TokenStream> = elements
|
|
.iter()
|
|
.map(|element| {
|
|
let mut bindings = element
|
|
.bindings
|
|
.iter()
|
|
.map(|(property, expr)| {
|
|
let prop_ident = quote::format_ident!("{}", property);
|
|
let binding_expr = compile_expression(expr, component);
|
|
|
|
quote!(#prop_ident: #binding_expr as _).to_string()
|
|
})
|
|
.collect::<Vec<String>>();
|
|
|
|
if bindings.len() < element.element_type.properties.len() {
|
|
bindings.push("..Default::default()".into())
|
|
}
|
|
|
|
let bindings = bindings.join(",");
|
|
|
|
let ctor_format_string = element
|
|
.element_type
|
|
.rust_type_constructor
|
|
.as_ref()
|
|
.expect(
|
|
"Unexpected error in type registry: path element is lacking rust type name",
|
|
);
|
|
|
|
ctor_format_string
|
|
.replace("{}", &bindings)
|
|
.parse()
|
|
.expect("Error parsing rust path element constructor")
|
|
})
|
|
.collect();
|
|
|
|
quote!(sixtyfps::re_exports::PathData::Elements(
|
|
sixtyfps::re_exports::SharedArray::<sixtyfps::re_exports::PathElement>::from(&[#(#converted_elements),*])
|
|
))
|
|
}
|
|
Path::Events(events) => {
|
|
let events = compile_path_events(events);
|
|
quote!(sixtyfps::re_exports::PathData::Events(#events))
|
|
}
|
|
}
|
|
}
|