feat: 支持箭头函数/模板字符串/let/const/delete/instanceof 语法

crates/oxide_compiler/tests/arrow_template_tests.rs

@@ -0,0 +1,129 @@
+use oxide_compiler::compiler::Compiler;
+use oxide_parser::Allocator;
+
+fn parse_to_hash(source: &str) -> u64 {
+    let allocator = Allocator::default();
+    let program = oxide_parser::parse(&allocator, source).expect("parse failed");
+    oxide_compiler::compiler::structural_hash(&program)
+}
+
+fn compile_source(source: &str) -> oxide_compiler::module::CompiledModule {
+    let allocator = Allocator::default();
+    let program = oxide_parser::parse(&allocator, source).expect("parse failed");
+    let compiler = Compiler::new();
+    compiler.compile(&program).expect("compile failed")
+}
+
+// -- Arrow function structural hash tests --
+
+#[test]
+fn hash_arrow_expression_body() {
+    // Expression-body arrows at top level compile successfully
+    let hash = parse_to_hash("var f = () => 42;");
+    assert!(hash != 0, "arrow function should produce a non-zero hash");
+}
+
+#[test]
+fn hash_arrow_different_params() {
+    let hash_a = parse_to_hash("var f = (x) => x;");
+    let hash_b = parse_to_hash("var f = (x, y) => x;");
+    assert_ne!(
+        hash_a, hash_b,
+        "different param counts must produce different hashes"
+    );
+}
+
+#[test]
+fn hash_arrow_vs_regular_function() {
+    let hash_a = parse_to_hash("var f = () => 42;");
+    let hash_b = parse_to_hash("var f = function() { return 42; };");
+    assert_ne!(
+        hash_a, hash_b,
+        "arrow and regular functions must have different hashes"
+    );
+}
+
+#[test]
+fn hash_arrow_block_body() {
+    let hash = parse_to_hash("var f = (a, b) => { return a + b; };");
+    assert!(
+        hash != 0,
+        "arrow with block body should produce a non-zero hash"
+    );
+}
+
+#[test]
+fn hash_arrow_same_shape() {
+    // Same structural shape: different variable name, same arrow expression
+    let hash_a = parse_to_hash("var f = () => 1 + 2;");
+    let hash_b = parse_to_hash("var g = () => 1 + 2;");
+    assert_eq!(
+        hash_a, hash_b,
+        "same-shaped arrow functions should have same hash"
+    );
+}
+
+// -- Arrow function compilation tests --
+
+#[test]
+fn compile_arrow_expression_body() {
+    let module = compile_source("var f = () => 42; f();");
+    // Verify the sub_module for the arrow is marked as is_arrow
+    let arrow_found = module.sub_modules.iter().any(|m| m.is_arrow);
+    assert!(
+        arrow_found,
+        "arrow function sub_module should have is_arrow=true"
+    );
+}
+
+#[test]
+fn compile_arrow_block_body() {
+    let module = compile_source("var f = (a, b) => { return a + b; }; f(1, 2);");
+    let arrow_found = module.sub_modules.iter().any(|m| m.is_arrow);
+    assert!(
+        arrow_found,
+        "arrow with block body should have is_arrow=true"
+    );
+}
+
+#[test]
+fn compile_arrow_name_inference() {
+    let module = compile_source("var myArrow = () => 42;");
+    // The sub_module for the arrow should have function_name set
+    let named = module
+        .sub_modules
+        .iter()
+        .any(|m| m.is_arrow && m.function_name.as_deref() == Some("myArrow"));
+    assert!(
+        named,
+        "arrow function should have function_name='myArrow' from D-04 inference"
+    );
+}
+
+#[test]
+fn compile_regular_function_not_arrow() {
+    let module = compile_source("var f = function() { return 42; }; f();");
+    // Regular FunctionExpression should NOT have is_arrow=true
+    let has_arrow = module.sub_modules.iter().any(|m| m.is_arrow);
+    assert!(
+        !has_arrow,
+        "regular function expression should not be marked as arrow"
+    );
+}
+
+#[test]
+fn compile_arrow_single_param_no_parens() {
+    let module = compile_source("var double = x => x * 2; double(5);");
+    let arrow_found = module.sub_modules.iter().any(|m| m.is_arrow);
+    assert!(
+        arrow_found,
+        "single-param arrow without parens should compile"
+    );
+}
+
+#[test]
+fn compile_arrow_multiple_params_with_parens() {
+    let module = compile_source("var sum = (a, b) => a + b; sum(1, 2);");
+    let arrow_found = module.sub_modules.iter().any(|m| m.is_arrow);
+    assert!(arrow_found, "multi-param arrow with parens should compile");
+}