Restore and extend feature index generation with method support

crates/libs/bindgen/Cargo.toml

@@ -17,3 +17,5 @@ targets = []
 
 [dependencies]
 rayon = "1.7"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"

crates/libs/bindgen/src/index.rs

@@ -0,0 +1,134 @@
+use super::*;
+use serde::Serialize;
+
+#[derive(Default, Serialize)]
+struct Index {
+    version: u8,
+    namespaces: Vec<String>,
+    items: BTreeMap<usize, Vec<IndexItem>>,
+}
+
+#[derive(Default, Serialize)]
+struct IndexItem {
+    #[serde(rename = "n")]
+    name: String,
+    #[serde(rename = "f")]
+    features: Vec<usize>,
+}
+
+impl Index {
+    fn new() -> Self {
+        Self {
+            version: 2,
+            ..Default::default()
+        }
+    }
+
+    fn get_or_create_namespace_index(&mut self, namespace: &str) -> usize {
+        match self.namespaces.iter().position(|ns| ns == namespace) {
+            Some(idx) => idx,
+            None => {
+                self.namespaces.push(namespace.to_string());
+                self.namespaces.len() - 1
+            }
+        }
+    }
+
+    fn add_item(&mut self, namespace: &str, name: &str, features: BTreeSet<String>) {
+        let namespace_idx = self.get_or_create_namespace_index(namespace);
+
+        let mut compact = BTreeSet::new();
+        for feature in features.iter().rev() {
+            if feature.is_empty() {
+                continue;
+            }
+
+            if !compact
+                .iter()
+                .any(|c: &&str| namespace_starts_with(c, feature))
+            {
+                compact.insert(feature.as_str());
+            }
+        }
+
+        let index_item = IndexItem {
+            name: name.to_string(),
+            features: compact
+                .iter()
+                .map(|dep| self.get_or_create_namespace_index(dep))
+                .collect(),
+        };
+
+        self.items
+            .entry(namespace_idx)
+            .or_default()
+            .push(index_item);
+    }
+}
+
+const EXCLUDED_NAMESPACES: &[&str] = &["Windows.Foundation", "Windows.Win32.Foundation"];
+
+#[doc(hidden)]
+pub fn write() {
+    let mut feature_index = Index::new();
+    let reader = Reader::new(expand_input(&["default"]));
+
+    let mut all_types: Vec<_> = reader
+        .values()
+        .flat_map(|types| types.values().flatten())
+        .collect();
+
+    all_types.sort_by(|a, b| {
+        let a_name = a.type_name();
+        let b_name = b.type_name();
+        (a_name.namespace(), a_name.name()).cmp(&(b_name.namespace(), b_name.name()))
+    });
+
+    for ty in all_types {
+        let type_deps = ty.dependencies();
+
+        let type_name = ty.type_name();
+        let namespace = type_name.namespace();
+
+        let features: BTreeSet<String> = type_deps
+            .keys()
+            .filter(|tn| !EXCLUDED_NAMESPACES.contains(&tn.namespace()))
+            .map(|tn| tn.namespace().to_string())
+            .chain(std::iter::once(namespace.to_string()))
+            .collect();
+
+        feature_index.add_item(namespace, type_name.name(), features);
+
+        let methods = match ty {
+            Type::CppInterface(ty) => {
+                let interface_name = ty.def.name();
+                Some((ty.def.methods(), interface_name))
+            }
+            Type::Interface(ty) => {
+                let interface_name = ty.def.name();
+                Some((ty.def.methods(), interface_name))
+            }
+            _ => None,
+        };
+
+        if let Some((methods, interface_name)) = methods {
+            for method in methods {
+                let method_deps = method.signature(namespace, &[]).dependencies();
+                let method_features: BTreeSet<String> = method_deps
+                    .keys()
+                    .filter(|tn| !EXCLUDED_NAMESPACES.contains(&tn.namespace()))
+                    .map(|tn| tn.namespace().to_string())
+                    .chain(std::iter::once(namespace.to_string()))
+                    .collect();
+
+                let scoped_name = format!("{}.{}", interface_name, method.name());
+                feature_index.add_item(namespace, &scoped_name, method_features);
+            }
+        }
+    }
+
+    write_to_file(
+        "features.json",
+        serde_json::to_string(&feature_index).unwrap(),
+    );
+}

crates/libs/bindgen/src/lib.rs

@@ -10,6 +10,7 @@ mod derive;
 mod derive_writer;
 mod filter;
 mod guid;
+mod index;
 mod io;
 mod libraries;
 mod param;
@@ -195,7 +196,8 @@ where
         namespace: "",
     };
 
-    writer.write(tree)
+    writer.write(tree);
+    index::write();
 }
 
 enum ArgKind {

web/features/.prettierrc

@@ -0,0 +1,7 @@
+{
+    "semi": true,
+    "tabWidth": 4,
+    "singleQuote": true,
+    "trailingComma": "es5",
+    "printWidth": 100
+}

web/features/eslint.config.js

@@ -1,48 +1,61 @@
-module.exports = {
-  env: {
-    browser: true,
-    es2021: true,
-  },
-  extends: [
-    'eslint:recommended',
-    'plugin:@typescript-eslint/recommended',
-    'plugin:react/recommended',
-    'plugin:react-hooks/recommended',
-  ],
-  overrides: [
+import js from '@eslint/js';
+import ts from '@typescript-eslint/eslint-plugin';
+import tsParser from '@typescript-eslint/parser';
+import react from 'eslint-plugin-react';
+import reactHooks from 'eslint-plugin-react-hooks';
+
+export default [
     {
-      env: {
-        node: true,
-      },
-      files: ['.eslintrc.{js,cjs}'],
-      parserOptions: {
-        sourceType: 'script',
-      },
+        ignores: [
+            '**/webpack.config.*',
+            '**/eslint.*.js',
+            '**/react-app-env.d.ts',
+            'dist/**',
+            'build/**',
+            'node_modules/**',
+        ]
     },
-  ],
-  parser: '@typescript-eslint/parser',
-  parserOptions: {
-    ecmaVersion: 'latest',
-    sourceType: 'module',
-  },
-  plugins: ['@typescript-eslint', 'react', 'react-hooks'],
-  rules: {
-    indent: [
-      'error',
-      4,
-      {
-        SwitchCase: 1,
-      },
-    ],
-    'linebreak-style': ['error', 'unix'],
-    quotes: ['error', 'single'],
-    semi: ['error', 'always'],
-    'react/jsx-uses-react': 'off',
-    'react/react-in-jsx-scope': 'off',
-  },
-  settings: {
-    react: {
-      version: 'detect',
+    js.configs.recommended,
+    {
+        files: ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'],
+        languageOptions: {
+            parser: tsParser,
+            parserOptions: {
+                ecmaVersion: 'latest',
+                sourceType: 'module',
+                ecmaFeatures: {
+                    jsx: true
+                }
+            },
+        },
+        plugins: {
+            '@typescript-eslint': ts,
+            react,
+            'react-hooks': reactHooks,
+        },
+        rules: {
+            ...ts.configs['recommended'].rules,
+            ...react.configs.recommended.rules,
+            'indent': ['error', 4, { 'SwitchCase': 1 }],
+            'quotes': ['error', 'single'],
+            'semi': ['error', 'always'],
+            'react/jsx-uses-react': 'off',
+            'react/react-in-jsx-scope': 'off',
+            'react-hooks/rules-of-hooks': 'error',
+            'react-hooks/exhaustive-deps': 'warn',
+            '@typescript-eslint/no-unused-vars': 'warn',
+            'no-undef': 'off',
+        },
+        settings: {
+            react: {
+                version: 'detect',
+            },
+        }
+    },
+    {
+        files: ['.eslintrc.{js,cjs}'],
+        languageOptions: {
+            sourceType: 'script',
+        }
     },
-  },
-};
+];