Implement imports of structs and type aliases #2
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@ -7,15 +7,15 @@
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{
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"type": "lldb",
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"request": "launch",
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"name": "Debug shader_prepoc",
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"name": "Debug wgsl_preprocessor",
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"cargo": {
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"args": [
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"build",
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//"--manifest-path", "${workspaceFolder}/examples/testbed/Cargo.toml"
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"--bin=shader_prepoc",
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"--bin=wgsl_preprocessor",
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],
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"filter": {
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"name": "shader_prepoc",
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"name": "wgsl_preprocessor",
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"kind": "bin"
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}
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},
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@ -25,33 +25,55 @@
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{
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"type": "lldb",
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"request": "launch",
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"name": "Debug unit tests in executable 'shader_prepoc'",
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"name": "Debug unit tests in executable 'wgsl_preprocessor'",
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"cargo": {
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"args": [
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"test",
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"--no-run",
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"--bin=shader_prepoc",
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"--package=shader_prepoc"
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"--bin=wgsl_preprocessor",
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"--package=wgsl_preprocessor"
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],
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"filter": {
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"name": "shader_prepoc",
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"name": "wgsl_preprocessor",
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"kind": "bin"
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}
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},
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"args": [],
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"cwd": "${workspaceFolder}"
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},
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{
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"type": "lldb",
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"request": "launch",
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"name": "Debug specific test in executable 'wgsl_preprocessor'",
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"cargo": {
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"args": [
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"test",
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"--no-run",
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"--lib",
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"--package=wgsl_preprocessor",
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"tests::import_struct_with_imported_fields",
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"--",
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"--exact --nocapture"
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],
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"filter": {
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"name": "wgsl_preprocessor",
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"kind": "lib"
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}
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},
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"args": [],
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"cwd": "${workspaceFolder}"
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},
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/* {
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"type": "lldb",
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"request": "launch",
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"name": "Test shader_prepoc",
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"name": "Test wgsl_preprocessor",
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"cargo": {
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"args": [
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"test",
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"--bin=shader_prepoc",
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"--bin=wgsl_preprocessor",
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],
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"filter": {
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"name": "shader_prepoc",
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"name": "wgsl_preprocessor",
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"kind": "bin"
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}
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},
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204
src/lib.rs
204
src/lib.rs
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@ -19,13 +19,13 @@ pub enum ExternalUsageType {
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Function,
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}
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#[derive(Clone)]
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#[derive(Clone, Debug)]
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pub struct Import {
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module: String,
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imports: Vec<String>,
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}
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#[derive(Clone)]
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#[derive(Clone, PartialEq, Eq, Hash)]
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pub struct DefRequirement {
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/// None if the requirement is local
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module: Option<String>,
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@ -34,6 +34,7 @@ pub struct DefRequirement {
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#[derive(Clone)]
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pub struct Definition {
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#[allow(dead_code)]
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name: String,
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requirements: Vec<DefRequirement>,
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/// The start byte position as a `usize`.
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@ -50,6 +51,8 @@ pub struct Module {
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src: String,
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/// Constants that this module defines
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pub vars: HashMap<String, Definition>,
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pub structs: HashMap<String, Definition>,
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pub aliases: HashMap<String, Definition>,
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/// Functions that this module defines
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pub functions: HashMap<String, Definition>,
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/// Imports of things per module
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@ -61,6 +64,16 @@ pub struct Module {
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module_imports: HashSet<String>,
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}
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impl Module {
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/// Get a definition of any type from this module.
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pub fn get_definition(&self, name: &str) -> Option<&Definition> {
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self.functions.get(name)
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.or_else(|| self.vars.get(name))
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.or_else(|| self.structs.get(name))
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.or_else(|| self.aliases.get(name))
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}
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}
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/// Recursively find files in `path`.
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pub(crate) fn recurse_files(path: impl AsRef<Path>) -> std::io::Result<Vec<PathBuf>> {
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let mut buf = vec![];
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@ -137,6 +150,12 @@ fn main() -> vec4<f32> {
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/// i.e., `simple::some_const`.
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#[test]
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fn double_layer_import_indirect_imports() {
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/* tracing_subscriber::fmt()
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// enable everything
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.with_max_level(tracing::Level::TRACE)
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// sets this to be the default, global collector for this application.
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.init(); */
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let mut p = Processor::new();
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p.parse_module(&INNER_MODULE).unwrap()
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.expect("failed to find module");
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@ -150,7 +169,7 @@ fn main() -> vec4<f32> {
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assert!(out.contains("const simple_scalar"), "definition of imported `const simple_scalar` is missing!");
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assert!(out.contains("fn do_something_cool("), "definition of imported `fn do_something_cool` is missing!");
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assert!(out.contains("const scalar"), "definition of imported dependency, `const scalar` is missing!");
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assert!(out.contains("const scalar"), "definition of imported dependency, `const scalar` is missing! {}", out);
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assert!(out.contains("fn mult_some_nums("), "definition of imported dependency, `fn mult_some_nums` is missing!");
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assert!(out.contains("fn do_something_cool("), "definition of imported `fn do_something_cool` is missing!");
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@ -180,11 +199,11 @@ fn main() -> vec4<f32> {
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return vec4<f32>(1.0);
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}"#;
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tracing_subscriber::fmt()
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/* tracing_subscriber::fmt()
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// enable everything
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.with_max_level(tracing::Level::TRACE)
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// sets this to be the default, global collector for this application.
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.init();
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.init(); */
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let mut p = Processor::new();
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p.parse_module(BINDINGS_MODULE).unwrap()
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@ -221,11 +240,11 @@ fn main() -> vec4<f32> {
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return vec4<f32>(1.0);
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}"#;
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tracing_subscriber::fmt()
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/* tracing_subscriber::fmt()
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// enable everything
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.with_max_level(tracing::Level::TRACE)
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// sets this to be the default, global collector for this application.
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.init();
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.init(); */
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let mut p = Processor::new();
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p.parse_module(BINDINGS_MODULE).unwrap()
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@ -271,11 +290,11 @@ fn main() -> vec4<f32> {
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return vec4<f32>(1.0);
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}"#;
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tracing_subscriber::fmt()
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/* tracing_subscriber::fmt()
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// enable everything
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.with_max_level(tracing::Level::TRACE)
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// sets this to be the default, global collector for this application.
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.init();
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.init(); */
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let mut p = Processor::new();
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p.parse_module(BINDINGS_MODULE).unwrap()
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@ -293,4 +312,171 @@ fn main() -> vec4<f32> {
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assert!(out.contains("var<storage, read> light_indices"), "missing light_indices binding: {}", out);
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assert!(out.contains("var<storage, read_write> some_buffer"), "missing some_buffer binding: {}", out);
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}
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#[test]
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fn import_struct() {
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const BINDINGS_MODULE: &'static str =
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r#"#define_module engine::lights
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struct Light {
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intensity: f32
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}"#;
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const IMPORTING_MODULE: &'static str =
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r#"#define_module engine::main
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#import engine::lights::{Light}
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fn main() -> vec4<f32> {
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// imports must be used to be generated
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let base_light = Light(1.0);
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return vec4<f32>(1.0);
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}"#;
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/* tracing_subscriber::fmt()
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// enable everything
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.with_max_level(tracing::Level::TRACE)
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// sets this to be the default, global collector for this application.
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.init(); */
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let mut p = Processor::new();
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p.parse_module(BINDINGS_MODULE).unwrap()
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.expect("failed to find bindings module def");
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let importing_mod = p.parse_module(IMPORTING_MODULE).unwrap()
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.expect("failed to find main module def");
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let lights_mod = p.modules.get("engine::lights").unwrap();
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assert!(lights_mod.structs.contains_key("Light"), "`Light` struct definition was not parsed");
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let out = p.process_file(&importing_mod, &IMPORTING_MODULE).unwrap();
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assert!(out.contains("struct Light"), "missing `Light` struct definition: {}", out);
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}
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#[test]
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fn import_struct_with_imported_fields() {
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const TYPE_MODULE: &'static str =
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r#"#define_module engine::types
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struct Something {
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val: f32
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}"#;
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const BINDINGS_MODULE: &'static str =
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r#"#define_module engine::lights
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#import engine::types::{Something}
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struct Light {
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some: Something,
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intensity: f32
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}"#;
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const IMPORTING_MODULE: &'static str =
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r#"#define_module engine::main
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#import engine::lights::{Light}
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fn main() -> vec4<f32> {
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// imports must be used to be generated
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let base_light = Light(1.0);
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return vec4<f32>(1.0);
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}"#;
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/* tracing_subscriber::fmt()
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// enable everything
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.with_max_level(tracing::Level::TRACE)
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// sets this to be the default, global collector for this application.
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.init(); */
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let mut p = Processor::new();
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p.parse_module(TYPE_MODULE).unwrap()
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.expect("failed to find bindings module def");
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p.parse_module(BINDINGS_MODULE).unwrap()
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.expect("failed to find bindings module def");
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let importing_mod = p.parse_module(IMPORTING_MODULE).unwrap()
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.expect("failed to find main module def");
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let lights_mod = p.modules.get("engine::lights").unwrap();
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assert!(lights_mod.structs.contains_key("Light"), "`Light` struct definition was not parsed");
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let out = p.process_file(&importing_mod, &IMPORTING_MODULE).unwrap();
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assert!(out.contains("struct Light"), "missing `Light` struct definition: {}", out);
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assert!(out.contains("struct Something"), "missing `Something` struct definition: {}", out);
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}
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#[test]
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fn import_type_alias() {
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const TYPE_MODULE: &'static str =
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r#"#define_module engine::types
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alias LightIntensity = f32;"#;
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const IMPORTING_MODULE: &'static str =
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r#"#define_module engine::main
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#import engine::types::{LightIntensity}
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fn main() -> vec4<f32> {
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// imports must be used to be generated
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let intensity: LightIntensity = 1.0;
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return vec4<f32>(1.0);
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}"#;
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/* tracing_subscriber::fmt()
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// enable everything
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.with_max_level(tracing::Level::TRACE)
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// sets this to be the default, global collector for this application.
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.init(); */
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let mut p = Processor::new();
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p.parse_module(TYPE_MODULE).unwrap()
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.expect("failed to find bindings module def");
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let importing_mod = p.parse_module(IMPORTING_MODULE).unwrap()
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.expect("failed to find main module def");
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let out = p.process_file(&importing_mod, &IMPORTING_MODULE).unwrap();
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assert!(out.contains("alias LightIntensity"), "missing `LightIntensity` type alias: {}", out);
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}
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#[test]
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fn import_type_alias_with_imports() {
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const TYPE_MODULE: &'static str =
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r#"#define_module engine::types
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alias Number = f32;"#;
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const LIGHT_MODULE: &'static str =
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r#"#define_module engine::light
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#import engine::types::{Number}
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alias LightIntensity = Number;"#;
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|
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const IMPORTING_MODULE: &'static str =
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r#"#define_module engine::main
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#import engine::light::{LightIntensity}
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fn main() -> vec4<f32> {
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// imports must be used to be generated
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let intensity: LightIntensity = 1.0;
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|
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return vec4<f32>(1.0);
|
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}"#;
|
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|
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/* tracing_subscriber::fmt()
|
||||
// enable everything
|
||||
.with_max_level(tracing::Level::TRACE)
|
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// sets this to be the default, global collector for this application.
|
||||
.init(); */
|
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|
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let mut p = Processor::new();
|
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p.parse_module(TYPE_MODULE).unwrap()
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.expect("failed to find bindings module def");
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p.parse_module(LIGHT_MODULE).unwrap()
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.expect("failed to find bindings module def");
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let importing_mod = p.parse_module(IMPORTING_MODULE).unwrap()
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.expect("failed to find main module def");
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|
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let out = p.process_file(&importing_mod, &IMPORTING_MODULE).unwrap();
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assert!(out.contains("alias LightIntensity"), "missing `LightIntensity` type alias: {}", out);
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assert!(out.contains("alias Number"), "missing `Number` type alias: {}", out);
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}
|
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}
|
|
@ -63,6 +63,46 @@ pub enum PreprocessorError {
|
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ConflictingImport { from_module: String, name: String },
|
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}
|
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|
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fn get_external_var_requirement(module: &Module, pair: Pair<Rule>) -> Option<DefRequirement> {
|
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let var_name = pair.as_str();
|
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|
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if pair.as_rule() == Rule::shader_external_variable {
|
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let (module_name, name) = var_name.rsplit_once("::").unwrap();
|
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|
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if RESERVED_WORDS.contains(&name) {
|
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return None;
|
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}
|
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|
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// Find the module that this variable is from.
|
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// Starts by checking if the full module path was used.
|
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// If it was not, then find the full path of the module.
|
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let module_full_name = if module.module_imports.contains(module_name) {
|
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Some(module_name.to_string())
|
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} else {
|
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module.module_imports.iter()
|
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.find(|m| {
|
||||
m.ends_with(module_name)
|
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}).cloned()
|
||||
};
|
||||
|
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debug!("Binding module is {:?}", module_full_name);
|
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|
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Some(DefRequirement {
|
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module: module_full_name,
|
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name: name.to_string(),
|
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})
|
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} else { // The only possibility is `Rule::shader_type`
|
||||
if RESERVED_WORDS.contains(&var_name) {
|
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return None;
|
||||
}
|
||||
|
||||
Some(DefRequirement {
|
||||
module: None,
|
||||
name: var_name.to_string(),
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Default)]
|
||||
pub struct Processor {
|
||||
pub modules: HashMap<String, Module>,
|
||||
|
@ -73,28 +113,6 @@ impl Processor {
|
|||
Self::default()
|
||||
}
|
||||
|
||||
//
|
||||
/* fn add_func_requirements(&self, found_requirements: &mut HashSet<String>, requirements: &mut Vec<DefRequirement>, fn_name: &str) {
|
||||
if found_requirements.contains(fn_name) {
|
||||
return;
|
||||
}
|
||||
found_requirements.insert(fn_name.to_string());
|
||||
|
||||
debug!("Found call to `{}`", fn_name);
|
||||
|
||||
// ignore reserved words
|
||||
if RESERVED_WORDS.contains(&fn_name) {
|
||||
return;
|
||||
}
|
||||
|
||||
let req = DefRequirement {
|
||||
// module is discovered later
|
||||
module: None,
|
||||
name: fn_name.to_string(),
|
||||
};
|
||||
requirements.push(req);
|
||||
} */
|
||||
|
||||
#[instrument(fields(module = module.name), skip_all)]
|
||||
fn get_imports_in_block(&mut self, module: &mut Module, block: Pair<Rule>, found_requirements: &mut HashSet<String>) -> Vec<DefRequirement> {
|
||||
let mut requirements = vec![];
|
||||
|
@ -407,6 +425,67 @@ impl Processor {
|
|||
_ => unimplemented!("ran into unhandled rule: {:?}", line.as_span())
|
||||
}
|
||||
},
|
||||
Rule::shader_struct_def => {
|
||||
let mut struct_inner = line.clone().into_inner();
|
||||
let struct_name = struct_inner.next().unwrap();
|
||||
|
||||
// iterate through fields in struct
|
||||
let mut requirements = vec![];
|
||||
while let (Some(_), Some(field_ty)) = (struct_inner.next(), struct_inner.next()) {
|
||||
//panic!("got {} of type {}", ident.as_str(), field_ty.as_str());
|
||||
let mut ty_inner = field_ty.into_inner();
|
||||
let ty_inner = ty_inner.next().unwrap();
|
||||
|
||||
match ty_inner.as_rule() {
|
||||
Rule::shader_external_variable | Rule::shader_type => {
|
||||
//requirements.push(value)
|
||||
if let Some(req) = get_external_var_requirement(&module, ty_inner) {
|
||||
requirements.push(req);
|
||||
}
|
||||
},
|
||||
_ => unimplemented!("ran into unhandled rule: ({:?}) {:?}", line.as_rule(), line.as_span())
|
||||
}
|
||||
}
|
||||
|
||||
let sname = struct_name.as_str().to_string();
|
||||
let line_span = line.as_span();
|
||||
let start_pos = line_span.start();
|
||||
let end_pos = line_span.end();
|
||||
|
||||
module.structs.insert(sname.clone(), Definition {
|
||||
name: sname,
|
||||
requirements,
|
||||
start_pos,
|
||||
end_pos,
|
||||
});
|
||||
},
|
||||
Rule::shader_type_alias_def => {
|
||||
let mut inner = line.clone().into_inner();
|
||||
|
||||
// get rules
|
||||
let alias_name = inner.next().unwrap();
|
||||
let alias_to = inner.next().unwrap();
|
||||
|
||||
// get the requirements of the alias if there are any
|
||||
let requirements = if let Some(req) = get_external_var_requirement(&module, alias_to) {
|
||||
debug!("Type req: {}", req.name);
|
||||
vec![req]
|
||||
} else { vec![] };
|
||||
|
||||
let aname = alias_name.as_str().to_string();
|
||||
debug!("Type alias `{}`", aname);
|
||||
|
||||
let line_span = line.as_span();
|
||||
let start_pos = line_span.start();
|
||||
let end_pos = line_span.end();
|
||||
|
||||
module.aliases.insert(aname.clone(), Definition {
|
||||
name: aname,
|
||||
requirements,
|
||||
start_pos,
|
||||
end_pos,
|
||||
});
|
||||
},
|
||||
Rule::cws => (),
|
||||
Rule::newline => (),
|
||||
_ => unimplemented!("ran into unhandled rule: ({:?}) {:?}", line.as_rule(), line.as_span())
|
||||
|
@ -466,7 +545,8 @@ impl Processor {
|
|||
let module = self.modules.get(module_path).unwrap();
|
||||
|
||||
let mut output = String::new();
|
||||
compile_definitions(&self.modules, module, &mut output)?;
|
||||
let mut compiled = HashSet::new();
|
||||
compile_definitions(&self.modules, module, &mut compiled, &mut output)?;
|
||||
Ok(output)
|
||||
}
|
||||
|
||||
|
@ -578,8 +658,14 @@ impl Processor {
|
|||
}
|
||||
|
||||
fn try_find_requirement_module(module: &Module, req_name: &str) -> Option<String> {
|
||||
debug!("looking for '{}' in module '{}' that imports: {:?}", req_name, module.name, module.item_imports.values());
|
||||
//debug!("Module: {}, req: {}", module.name, req_name);
|
||||
|
||||
for import in module.item_imports.values() {
|
||||
//debug!("Import: {:?}", import);
|
||||
|
||||
if import.imports.contains(&req_name.to_string()) {
|
||||
//debug!("has it");
|
||||
return Some(import.module.clone());
|
||||
}
|
||||
}
|
||||
|
@ -587,35 +673,81 @@ fn try_find_requirement_module(module: &Module, req_name: &str) -> Option<String
|
|||
None
|
||||
}
|
||||
|
||||
#[instrument(fields(module = module.name), skip_all)]
|
||||
fn compile_definitions(modules: &HashMap<String, Module>, module: &Module, output: &mut String) -> Result<(), PreprocessorError> {
|
||||
for (_, funcs) in &module.functions {
|
||||
//#[instrument(fields(module = module.name, require=tracing::field::Empty), skip_all)]
|
||||
fn compile_definitions(modules: &HashMap<String, Module>, module: &Module, compiled_definitions: &mut HashSet<DefRequirement>, output: &mut String) -> Result<(), PreprocessorError> {
|
||||
let e = debug_span!("compile_definitions", module = module.name, require = tracing::field::Empty, sub_require = tracing::field::Empty).entered();
|
||||
|
||||
let defs = module.functions.iter().chain(module.vars.iter()).chain(module.structs.iter()).chain(module.aliases.iter());
|
||||
for (_, funcs) in defs { //&module.functions {
|
||||
let mut requirements = VecDeque::from(funcs.requirements.clone());
|
||||
|
||||
while let Some(mut req) = requirements.pop_front() {
|
||||
e.record("require", req.name.clone());
|
||||
|
||||
if req.module.is_none() {
|
||||
let mod_name = try_find_requirement_module(&module, &req.name);
|
||||
req.module = mod_name;
|
||||
debug!("req module: {:?}", req.module);
|
||||
}
|
||||
|
||||
if let Some(module_name) = &req.module {
|
||||
let req_module = modules.get(module_name)
|
||||
.unwrap_or_else(|| panic!("invalid module import: {}", module_name));
|
||||
|
||||
let req_def = req_module.functions.get(&req.name)
|
||||
.or_else(|| req_module.vars.get(&req.name))
|
||||
// get the definition from the module that defines the import
|
||||
let req_def = req_module.get_definition(&req.name)
|
||||
.unwrap_or_else(|| panic!("invalid import: {} from {}", req.name, module_name));
|
||||
|
||||
if !req_def.requirements.is_empty() {
|
||||
let sub_req_names: Vec<String> = req_def.requirements.iter().map(|r| r.name.clone()).collect();
|
||||
debug!("Found requirement: {}, with the following sub-requirements: {:?}", req_def.name, sub_req_names);
|
||||
for mut sub in req_def.requirements.clone() {
|
||||
e.record("sub_require", sub.name.clone());
|
||||
|
||||
println!("searching for sub requirement module in module: '{}'", req_module.name);
|
||||
|
||||
if sub.module.is_none() {
|
||||
sub.module = try_find_requirement_module(&req_module, &sub.name);
|
||||
}
|
||||
|
||||
if let Some(sub_mod) = &sub.module {
|
||||
if !compiled_definitions.contains(&sub) {
|
||||
compiled_definitions.insert(sub.clone());
|
||||
|
||||
let sub_mod = modules.get(sub_mod).expect("unknown module from import");
|
||||
debug!("found sub requirement module: {}", sub_mod.name);
|
||||
let module_name = &sub_mod.name;
|
||||
|
||||
let mut requirements_output = String::new();
|
||||
compile_definitions(modules, sub_mod, compiled_definitions, &mut requirements_output)?;
|
||||
|
||||
output.write_fmt(format_args!("\n// REQUIREMENTS OF {}::{}\n", module_name, req.name))?;
|
||||
output.push_str(&requirements_output);
|
||||
output.push_str("\n");
|
||||
|
||||
// find the definition of the sub requirement
|
||||
let sub_def = sub_mod.get_definition(&sub.name)
|
||||
.unwrap_or_else(|| panic!("invalid import: {} from {}", req.name, module_name));
|
||||
|
||||
// write the source of the sub requirement to the output
|
||||
let req_src = &sub_mod.src[sub_def.start_pos..sub_def.end_pos];
|
||||
output.write_fmt(format_args!("// SOURCE {}::{}\n", module_name, sub.name))?;
|
||||
output.push_str(req_src);
|
||||
output.push_str("\n");
|
||||
} else {
|
||||
debug!("Requirement module is already compiled, skipping...");
|
||||
}
|
||||
} else {
|
||||
debug!("Requirement has no module, assuming its local...");
|
||||
}
|
||||
}
|
||||
/* let sub_req_names: Vec<String> = req_def.requirements.iter().map(|r| r.name.clone()).collect();
|
||||
debug!("Found requirement: {}, with the following sub-requirements: {:?} from {}", req_def.name, sub_req_names, req_module.name);
|
||||
|
||||
let mut requirements_output = String::new();
|
||||
compile_definitions(modules, req_module, &mut requirements_output)?;
|
||||
|
||||
output.write_fmt(format_args!("\n// REQUIREMENTS OF {}::{}\n", module_name, req.name))?;
|
||||
output.push_str(&requirements_output);
|
||||
output.push_str("\n");
|
||||
output.push_str("\n"); */
|
||||
}
|
||||
|
||||
let func_src = &req_module.src[req_def.start_pos..req_def.end_pos];
|
||||
|
|
|
@ -37,6 +37,14 @@ shader_value = { shader_value_bool | shader_value_num }
|
|||
|
||||
shader_var_type = { ":" ~ ws* ~ (shader_external_variable | shader_type) }
|
||||
shader_const_def = { "const" ~ ws ~ shader_ident ~ (ws* ~ shader_var_type)? ~ ws* ~ "=" ~ ws* ~ shader_value ~ ";" }
|
||||
shader_type_alias_def = { ("alias" | "type") ~ ws ~ shader_ident ~ ws* ~ "=" ~ ws* ~ (shader_external_variable | shader_type) ~ ";" }
|
||||
shader_struct_def = {
|
||||
"struct" ~ ws ~ shader_ident ~ ws* ~ "{" ~ NEWLINE ~
|
||||
ws* ~ shader_ident ~ shader_var_type ~
|
||||
("," ~ NEWLINE ~ ws* ~ shader_ident ~ shader_var_type)* ~
|
||||
","? ~ NEWLINE? ~
|
||||
"}"
|
||||
}
|
||||
|
||||
shader_group_binding = { "@group(" ~ NUMBER ~ ") @binding(" ~ NUMBER ~ ")" }
|
||||
shader_binding_var_constraint = {
|
||||
|
@ -58,8 +66,10 @@ shader_fn_def = {
|
|||
// a line of shader code, including white space
|
||||
shader_code_line = {
|
||||
shader_fn_def |
|
||||
(shader_struct_def ~ newline?) |
|
||||
(shader_const_def ~ newline?) |
|
||||
(shader_binding_def ~ newline?) |
|
||||
(shader_type_alias_def ~ newline?) |
|
||||
ws* ~ newline
|
||||
}
|
||||
//shader_code_line = { shader_fn_def | shader_const_def | (ws* ~ (shader_external_code | shader_code)* ~ ws*) }
|
||||
|
|
Loading…
Reference in New Issue