slint/sixtyfps_compiler/lib.rs
Simon Hausmann 114b51f32b Add include paths to CompilerConfiguration
We'll try to load .60 files from those paths.
2020-07-17 12:15:03 +02:00

105 lines
3.4 KiB
Rust

/*!
# The SixtyFPS compiler library
**NOTE:** This library is an internal crate for the SixtyFPS project.
This crate should not be used directly by application using SixtyFPS.
You should use the `sixtyfps` crate instead
*/
// It would be nice to keep the compiler free of unsafe code
#![deny(unsafe_code)]
#[cfg(feature = "proc_macro_span")]
extern crate proc_macro;
use std::{cell::RefCell, rc::Rc};
pub mod diagnostics;
pub mod expression_tree;
pub mod generator;
pub mod layout;
pub mod object_tree;
pub mod parser;
pub mod typeregister;
mod passes {
// Trait for the purpose of applying modifications to Expressions that are stored in various
// data structures.
pub trait ExpressionFieldsVisitor {
fn visit_expressions(
&mut self,
visitor: impl FnMut(&mut super::expression_tree::Expression),
);
}
pub mod collect_resources;
pub mod compile_paths;
pub mod inlining;
pub mod lower_layout;
pub mod move_declarations;
pub mod repeater_component;
pub mod resolving;
pub mod unique_id;
}
#[derive(Default)]
/// CompilationConfiguration allows configuring different aspects of the compiler.
pub struct CompilerConfiguration<'a> {
/// Indicate whether to embed resources such as images in the generated output or whether
/// to retain references to the resources on the file system.
pub embed_resources: bool,
/// The compiler will look in these paths for components used in the file to compile.
pub include_paths: &'a [&'a std::path::Path],
}
pub fn compile_syntax_node<DocNode: Into<parser::syntax_nodes::Document>>(
doc_node: DocNode,
mut diagnostics: diagnostics::FileDiagnostics,
compiler_config: &CompilerConfiguration,
) -> (object_tree::Document, diagnostics::BuildDiagnostics) {
let mut all_diagnostics = diagnostics::BuildDiagnostics::default();
let global_type_registry = typeregister::TypeRegister::builtin();
let type_registry = if !compiler_config.include_paths.is_empty() {
let library = Rc::new(RefCell::new(typeregister::TypeRegister::new(&global_type_registry)));
all_diagnostics.extend(
compiler_config
.include_paths
.iter()
.map(|path| typeregister::TypeRegister::add_from_directory(&library, path))
.filter_map(Result::ok)
.flatten(),
);
library
} else {
global_type_registry
};
let doc =
crate::object_tree::Document::from_node(doc_node.into(), &mut diagnostics, &type_registry);
run_passes(&doc, &mut diagnostics, compiler_config);
all_diagnostics.add(diagnostics);
(doc, all_diagnostics)
}
pub fn run_passes(
doc: &object_tree::Document,
diag: &mut diagnostics::FileDiagnostics,
compiler_config: &CompilerConfiguration,
) {
passes::resolving::resolve_expressions(doc, diag);
passes::inlining::inline(doc);
passes::compile_paths::compile_paths(&doc.root_component, &doc.local_registry, diag);
passes::unique_id::assign_unique_id(&doc.root_component);
passes::lower_layout::lower_layouts(&doc.root_component, diag);
if compiler_config.embed_resources {
passes::collect_resources::collect_resources(&doc.root_component);
}
passes::repeater_component::create_repeater_components(&doc.root_component, diag);
passes::move_declarations::move_declarations(&doc.root_component);
}