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-rw-r--r--Libraries/LibJS/AST.cpp2
-rw-r--r--Libraries/LibJS/Interpreter.cpp3
-rw-r--r--Libraries/LibJS/Interpreter.h2
-rw-r--r--Libraries/LibJS/Makefile2
-rw-r--r--Libraries/LibJS/Runtime/Function.cpp6
-rw-r--r--Libraries/LibJS/Runtime/FunctionConstructor.cpp77
-rw-r--r--Libraries/LibJS/Runtime/FunctionConstructor.h46
-rw-r--r--Libraries/LibJS/Runtime/FunctionPrototype.cpp123
-rw-r--r--Libraries/LibJS/Runtime/FunctionPrototype.h47
-rw-r--r--Libraries/LibJS/Runtime/GlobalObject.cpp2
-rw-r--r--Libraries/LibJS/Runtime/ScriptFunction.cpp1
-rw-r--r--Libraries/LibJS/Tests/Function.js29
-rw-r--r--Libraries/LibJS/Tests/Function.prototype.apply.js53
-rw-r--r--Libraries/LibJS/Tests/Function.prototype.call.js53
-rw-r--r--Libraries/LibJS/Tests/Function.prototype.toString.js21
15 files changed, 463 insertions, 4 deletions
diff --git a/Libraries/LibJS/AST.cpp b/Libraries/LibJS/AST.cpp
index 8d44ca0b9b..d3685b7118 100644
--- a/Libraries/LibJS/AST.cpp
+++ b/Libraries/LibJS/AST.cpp
@@ -333,6 +333,8 @@ Value UnaryExpression::execute(Interpreter& interpreter) const
case Value::Type::String:
return js_string(interpreter, "string");
case Value::Type::Object:
+ if (lhs_result.as_object().is_function())
+ return js_string(interpreter, "function");
return js_string(interpreter, "object");
case Value::Type::Boolean:
return js_string(interpreter, "boolean");
diff --git a/Libraries/LibJS/Interpreter.cpp b/Libraries/LibJS/Interpreter.cpp
index 6350fdd0ae..241bb673ee 100644
--- a/Libraries/LibJS/Interpreter.cpp
+++ b/Libraries/LibJS/Interpreter.cpp
@@ -31,6 +31,7 @@
#include <LibJS/Runtime/DatePrototype.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/ErrorPrototype.h>
+#include <LibJS/Runtime/FunctionPrototype.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/NativeFunction.h>
#include <LibJS/Runtime/Object.h>
@@ -47,6 +48,7 @@ Interpreter::Interpreter()
m_empty_object_shape = heap().allocate<Shape>();
m_object_prototype = heap().allocate<ObjectPrototype>();
+ m_function_prototype = heap().allocate<FunctionPrototype>();
m_string_prototype = heap().allocate<StringPrototype>();
m_array_prototype = heap().allocate<ArrayPrototype>();
m_error_prototype = heap().allocate<ErrorPrototype>();
@@ -171,6 +173,7 @@ void Interpreter::gather_roots(Badge<Heap>, HashTable<Cell*>& roots)
roots.set(m_array_prototype);
roots.set(m_error_prototype);
roots.set(m_date_prototype);
+ roots.set(m_function_prototype);
roots.set(m_exception);
diff --git a/Libraries/LibJS/Interpreter.h b/Libraries/LibJS/Interpreter.h
index ab589e8e3c..af79de6b5e 100644
--- a/Libraries/LibJS/Interpreter.h
+++ b/Libraries/LibJS/Interpreter.h
@@ -136,6 +136,7 @@ public:
Object* array_prototype() { return m_array_prototype; }
Object* error_prototype() { return m_error_prototype; }
Object* date_prototype() { return m_date_prototype; }
+ Object* function_prototype() { return m_function_prototype; }
Exception* exception() { return m_exception; }
void clear_exception() { m_exception = nullptr; }
@@ -168,6 +169,7 @@ private:
Object* m_array_prototype { nullptr };
Object* m_error_prototype { nullptr };
Object* m_date_prototype { nullptr };
+ Object* m_function_prototype { nullptr };
Exception* m_exception { nullptr };
diff --git a/Libraries/LibJS/Makefile b/Libraries/LibJS/Makefile
index 1a18967fc1..ff059321fb 100644
--- a/Libraries/LibJS/Makefile
+++ b/Libraries/LibJS/Makefile
@@ -18,6 +18,8 @@ OBJS = \
Runtime/ErrorPrototype.o \
Runtime/Exception.o \
Runtime/Function.o \
+ Runtime/FunctionConstructor.o \
+ Runtime/FunctionPrototype.o \
Runtime/GlobalObject.o \
Runtime/MathObject.o \
Runtime/NativeFunction.o \
diff --git a/Libraries/LibJS/Runtime/Function.cpp b/Libraries/LibJS/Runtime/Function.cpp
index c810237e8b..fe72c6668c 100644
--- a/Libraries/LibJS/Runtime/Function.cpp
+++ b/Libraries/LibJS/Runtime/Function.cpp
@@ -24,16 +24,14 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include <AK/FlyString.h>
-#include <LibJS/Heap/Heap.h>
+#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/Function.h>
-#include <LibJS/Runtime/Value.h>
namespace JS {
Function::Function()
{
- put("prototype", heap().allocate<Object>());
+ set_prototype(interpreter().function_prototype());
}
Function::~Function()
diff --git a/Libraries/LibJS/Runtime/FunctionConstructor.cpp b/Libraries/LibJS/Runtime/FunctionConstructor.cpp
new file mode 100644
index 0000000000..6a005f8324
--- /dev/null
+++ b/Libraries/LibJS/Runtime/FunctionConstructor.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <AK/StringBuilder.h>
+#include <LibJS/AST.h>
+#include <LibJS/Interpreter.h>
+#include <LibJS/Parser.h>
+#include <LibJS/Runtime/Error.h>
+#include <LibJS/Runtime/FunctionConstructor.h>
+#include <LibJS/Runtime/ScriptFunction.h>
+
+namespace JS {
+
+FunctionConstructor::FunctionConstructor()
+{
+ put("prototype", interpreter().function_prototype());
+ put("length", Value(1));
+}
+
+FunctionConstructor::~FunctionConstructor()
+{
+}
+
+Value FunctionConstructor::call(Interpreter& interpreter)
+{
+ return construct(interpreter);
+}
+
+Value FunctionConstructor::construct(Interpreter& interpreter)
+{
+ String parameters_source = "";
+ String body_source = "";
+ if (interpreter.argument_count() == 1)
+ body_source = interpreter.argument(0).to_string();
+ if (interpreter.argument_count() > 1) {
+ Vector<String> parameters;
+ for (size_t i = 0; i < interpreter.argument_count() - 1; ++i)
+ parameters.append(interpreter.argument(i).to_string());
+ StringBuilder parameters_builder;
+ parameters_builder.join(',', parameters);
+ parameters_source = parameters_builder.build();
+ body_source = interpreter.argument(interpreter.argument_count() - 1).to_string();
+ }
+ auto source = String::format("function (%s) { %s }", parameters_source.characters(), body_source.characters());
+ auto parser = Parser(Lexer(source));
+ auto function_expression = parser.parse_function_node<FunctionExpression>();
+ if (parser.has_errors()) {
+ // FIXME: The parser should expose parsing error strings rather than just fprintf()'ing them
+ return interpreter.heap().allocate<Error>("SyntaxError", "");
+ }
+ return function_expression->execute(interpreter);
+}
+
+}
diff --git a/Libraries/LibJS/Runtime/FunctionConstructor.h b/Libraries/LibJS/Runtime/FunctionConstructor.h
new file mode 100644
index 0000000000..2a891be6ae
--- /dev/null
+++ b/Libraries/LibJS/Runtime/FunctionConstructor.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <LibJS/Runtime/NativeFunction.h>
+
+namespace JS {
+
+class FunctionConstructor final : public NativeFunction {
+public:
+ FunctionConstructor();
+ virtual ~FunctionConstructor() override;
+
+ virtual Value call(Interpreter&) override;
+ virtual Value construct(Interpreter&) override;
+
+private:
+ virtual bool has_constructor() const override { return true; }
+ virtual const char* class_name() const override { return "FunctionConstructor"; }
+};
+
+}
diff --git a/Libraries/LibJS/Runtime/FunctionPrototype.cpp b/Libraries/LibJS/Runtime/FunctionPrototype.cpp
new file mode 100644
index 0000000000..a0a976181d
--- /dev/null
+++ b/Libraries/LibJS/Runtime/FunctionPrototype.cpp
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <AK/Function.h>
+#include <AK/StringBuilder.h>
+#include <LibJS/AST.h>
+#include <LibJS/Interpreter.h>
+#include <LibJS/Runtime/Error.h>
+#include <LibJS/Runtime/Function.h>
+#include <LibJS/Runtime/FunctionPrototype.h>
+#include <LibJS/Runtime/ScriptFunction.h>
+
+namespace JS {
+
+FunctionPrototype::FunctionPrototype()
+{
+ put_native_function("apply", apply, 2);
+ put_native_function("bind", bind, 1);
+ put_native_function("call", call, 1);
+ put_native_function("toString", to_string);
+ put("length", Value(0));
+}
+
+FunctionPrototype::~FunctionPrototype()
+{
+}
+
+Value FunctionPrototype::apply(Interpreter& interpreter)
+{
+ auto* this_object = interpreter.this_value().to_object(interpreter.heap());
+ if (!this_object)
+ return {};
+ if (!this_object->is_function())
+ return interpreter.throw_exception<Error>("TypeError", "Not a Function object");
+ auto function = static_cast<Function*>(this_object);
+ auto this_arg = interpreter.argument(0);
+ auto arg_array = interpreter.argument(1);
+ if (arg_array.is_null() || arg_array.is_undefined())
+ return interpreter.call(function, this_arg);
+ if (!arg_array.is_object())
+ return interpreter.throw_exception<Error>("TypeError", "argument array must be an object");
+ size_t length = 0;
+ auto length_property = arg_array.as_object().get("length");
+ if (length_property.has_value())
+ length = length_property.value().to_number().to_i32();
+ Vector<Value> arguments;
+ for (size_t i = 0; i < length; ++i)
+ arguments.append(arg_array.as_object().get(String::number(i)).value_or(js_undefined()));
+ return interpreter.call(function, this_arg, arguments);
+}
+
+Value FunctionPrototype::bind(Interpreter& interpreter)
+{
+ auto* this_object = interpreter.this_value().to_object(interpreter.heap());
+ if (!this_object)
+ return {};
+ // FIXME: Implement me :^)
+ ASSERT_NOT_REACHED();
+}
+
+Value FunctionPrototype::call(Interpreter& interpreter)
+{
+ auto* this_object = interpreter.this_value().to_object(interpreter.heap());
+ if (!this_object)
+ return {};
+ if (!this_object->is_function())
+ return interpreter.throw_exception<Error>("TypeError", "Not a Function object");
+ auto function = static_cast<Function*>(this_object);
+ auto this_arg = interpreter.argument(0);
+ Vector<Value> arguments;
+ if (interpreter.argument_count() > 1) {
+ for (size_t i = 1; i < interpreter.argument_count(); ++i)
+ arguments.append(interpreter.argument(i));
+ }
+ return interpreter.call(function, this_arg, arguments);
+}
+
+Value FunctionPrototype::to_string(Interpreter& interpreter)
+{
+ auto* this_object = interpreter.this_value().to_object(interpreter.heap());
+ if (!this_object)
+ return {};
+ if (!this_object->is_function())
+ return interpreter.throw_exception<Error>("TypeError", "Not a Function object");
+ // FIXME: Functions should be able to know their name, if any
+ if (this_object->is_native_function()) {
+ auto function_source = String::format("function () {\n [%s]\n}", this_object->class_name());
+ return js_string(interpreter, function_source);
+ }
+ auto parameters = static_cast<ScriptFunction*>(this_object)->parameters();
+ StringBuilder parameters_builder;
+ parameters_builder.join(", ", parameters);
+ // FIXME: ASTNodes should be able to dump themselves to source strings - something like this:
+ // auto& body = static_cast<ScriptFunction*>(this_object)->body();
+ // auto body_source = body.to_source();
+ auto function_source = String::format("function (%s) {\n %s\n}", parameters_builder.build().characters(), "???");
+ return js_string(interpreter, function_source);
+}
+
+}
diff --git a/Libraries/LibJS/Runtime/FunctionPrototype.h b/Libraries/LibJS/Runtime/FunctionPrototype.h
new file mode 100644
index 0000000000..3248d7bb3b
--- /dev/null
+++ b/Libraries/LibJS/Runtime/FunctionPrototype.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <LibJS/Runtime/Object.h>
+
+namespace JS {
+
+class FunctionPrototype final : public Object {
+public:
+ FunctionPrototype();
+ virtual ~FunctionPrototype() override;
+
+private:
+ virtual const char* class_name() const override { return "FunctionPrototype"; }
+
+ static Value apply(Interpreter&);
+ static Value bind(Interpreter&);
+ static Value call(Interpreter&);
+ static Value to_string(Interpreter&);
+};
+
+}
diff --git a/Libraries/LibJS/Runtime/GlobalObject.cpp b/Libraries/LibJS/Runtime/GlobalObject.cpp
index 452877f78d..881b6800ff 100644
--- a/Libraries/LibJS/Runtime/GlobalObject.cpp
+++ b/Libraries/LibJS/Runtime/GlobalObject.cpp
@@ -5,6 +5,7 @@
#include <LibJS/Runtime/ConsoleObject.h>
#include <LibJS/Runtime/DateConstructor.h>
#include <LibJS/Runtime/ErrorConstructor.h>
+#include <LibJS/Runtime/FunctionConstructor.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/MathObject.h>
#include <LibJS/Runtime/NativeFunction.h>
@@ -26,6 +27,7 @@ GlobalObject::GlobalObject()
put("console", heap().allocate<ConsoleObject>());
put("Date", heap().allocate<DateConstructor>());
put("Error", heap().allocate<ErrorConstructor>());
+ put("Function", heap().allocate<FunctionConstructor>());
put("Math", heap().allocate<MathObject>());
put("Object", heap().allocate<ObjectConstructor>());
}
diff --git a/Libraries/LibJS/Runtime/ScriptFunction.cpp b/Libraries/LibJS/Runtime/ScriptFunction.cpp
index 8ae8543472..1a397c96a3 100644
--- a/Libraries/LibJS/Runtime/ScriptFunction.cpp
+++ b/Libraries/LibJS/Runtime/ScriptFunction.cpp
@@ -37,6 +37,7 @@ ScriptFunction::ScriptFunction(const ScopeNode& body, Vector<FlyString> paramete
: m_body(body)
, m_parameters(move(parameters))
{
+ put("prototype", heap().allocate<Object>());
put_native_property("length", length_getter, length_setter);
}
diff --git a/Libraries/LibJS/Tests/Function.js b/Libraries/LibJS/Tests/Function.js
new file mode 100644
index 0000000000..5618aa5219
--- /dev/null
+++ b/Libraries/LibJS/Tests/Function.js
@@ -0,0 +1,29 @@
+function assert(x) { if (!x) throw 1; }
+
+try {
+ assert(Function.length === 1);
+ assert(Function.prototype.length === 0);
+ assert(typeof Function() === "function");
+ assert(typeof new Function() === "function");
+ assert(Function()() === undefined);
+ assert(new Function()() === undefined);
+ assert(Function("return 42")() === 42);
+ assert(new Function("return 42")() === 42);
+ assert(new Function("foo", "return foo")(42) === 42);
+ assert(new Function("foo,bar", "return foo + bar")(1, 2) === 3);
+ assert(new Function("foo", "bar", "return foo + bar")(1, 2) === 3);
+ assert(new Function("foo", "bar,baz", "return foo + bar + baz")(1, 2, 3) === 6);
+ assert(new Function("foo", "bar", "baz", "return foo + bar + baz")(1, 2, 3) === 6);
+ assert(new Function("foo", "if (foo) { return 42; } else { return 'bar'; }")(true) === 42);
+ assert(new Function("foo", "if (foo) { return 42; } else { return 'bar'; }")(false) === "bar");
+ assert(new Function("return typeof Function()")() === "function");
+ // FIXME: This is equivalent to
+ // (function (x) { return function (y) { return x + y;} })(1)(2)
+ // and should totally work, but both currently fail with
+ // Uncaught exception: [ReferenceError]: 'x' not known
+ // assert(new Function("x", "return function (y) { return x + y };")(1)(2) === 3);
+
+ console.log("PASS");
+} catch (e) {
+ console.log("FAIL: " + e.message);
+}
diff --git a/Libraries/LibJS/Tests/Function.prototype.apply.js b/Libraries/LibJS/Tests/Function.prototype.apply.js
new file mode 100644
index 0000000000..22d14194ff
--- /dev/null
+++ b/Libraries/LibJS/Tests/Function.prototype.apply.js
@@ -0,0 +1,53 @@
+function assert(x) { if (!x) throw 1; }
+
+try {
+ function Foo(arg) {
+ this.foo = arg;
+ }
+ function Bar(arg) {
+ this.bar = arg;
+ }
+ function FooBar(arg) {
+ Foo.apply(this, [arg]);
+ Bar.apply(this, [arg]);
+ }
+ function FooBarBaz(arg) {
+ Foo.apply(this, [arg]);
+ Bar.apply(this, [arg]);
+ this.baz = arg;
+ }
+
+ assert(Function.prototype.apply.length === 2);
+
+ var foo = new Foo("test");
+ assert(foo.foo === "test");
+ assert(foo.bar === undefined);
+ assert(foo.baz === undefined);
+
+ var bar = new Bar("test");
+ assert(bar.foo === undefined);
+ assert(bar.bar === "test");
+ assert(bar.baz === undefined);
+
+ var foobar = new FooBar("test");
+ assert(foobar.foo === "test");
+ assert(foobar.bar === "test");
+ assert(foobar.baz === undefined);
+
+ var foobarbaz = new FooBarBaz("test");
+ assert(foobarbaz.foo === "test");
+ assert(foobarbaz.bar === "test");
+ assert(foobarbaz.baz === "test");
+
+ assert(Math.abs.apply(null, [-1]) === 1);
+
+ var add = (x, y) => x + y;
+ assert(add.apply(null, [1, 2]) === 3);
+
+ var multiply = function (x, y) { return x * y; };
+ assert(multiply.apply(null, [3, 4]) === 12);
+
+ console.log("PASS");
+} catch (e) {
+ console.log("FAIL: " + e);
+}
diff --git a/Libraries/LibJS/Tests/Function.prototype.call.js b/Libraries/LibJS/Tests/Function.prototype.call.js
new file mode 100644
index 0000000000..da24707511
--- /dev/null
+++ b/Libraries/LibJS/Tests/Function.prototype.call.js
@@ -0,0 +1,53 @@
+function assert(x) { if (!x) throw 1; }
+
+try {
+ function Foo(arg) {
+ this.foo = arg;
+ }
+ function Bar(arg) {
+ this.bar = arg;
+ }
+ function FooBar(arg) {
+ Foo.call(this, arg);
+ Bar.call(this, arg);
+ }
+ function FooBarBaz(arg) {
+ Foo.call(this, arg);
+ Bar.call(this, arg);
+ this.baz = arg;
+ }
+
+ assert(Function.prototype.call.length === 1);
+
+ var foo = new Foo("test");
+ assert(foo.foo === "test");
+ assert(foo.bar === undefined);
+ assert(foo.baz === undefined);
+
+ var bar = new Bar("test");
+ assert(bar.foo === undefined);
+ assert(bar.bar === "test");
+ assert(bar.baz === undefined);
+
+ var foobar = new FooBar("test");
+ assert(foobar.foo === "test");
+ assert(foobar.bar === "test");
+ assert(foobar.baz === undefined);
+
+ var foobarbaz = new FooBarBaz("test");
+ assert(foobarbaz.foo === "test");
+ assert(foobarbaz.bar === "test");
+ assert(foobarbaz.baz === "test");
+
+ assert(Math.abs.call(null, -1) === 1);
+
+ var add = (x, y) => x + y;
+ assert(add.call(null, 1, 2) === 3);
+
+ var multiply = function (x, y) { return x * y; };
+ assert(multiply.call(null, 3, 4) === 12);
+
+ console.log("PASS");
+} catch (e) {
+ console.log("FAIL: " + e);
+}
diff --git a/Libraries/LibJS/Tests/Function.prototype.toString.js b/Libraries/LibJS/Tests/Function.prototype.toString.js
new file mode 100644
index 0000000000..a1fd3c7252
--- /dev/null
+++ b/Libraries/LibJS/Tests/Function.prototype.toString.js
@@ -0,0 +1,21 @@
+function assert(x) { if (!x) throw 1; }
+
+try {
+ assert((function() {}).toString() === "function () {\n ???\n}");
+ assert((function(foo) {}).toString() === "function (foo) {\n ???\n}");
+ assert((function(foo, bar, baz) {}).toString() === "function (foo, bar, baz) {\n ???\n}");
+ assert((function(foo, bar, baz) {
+ if (foo) {
+ return baz;
+ } else if (bar) {
+ return foo;
+ }
+ return bar + 42;
+ }).toString() === "function (foo, bar, baz) {\n ???\n}");
+ assert(console.log.toString() === "function () {\n [NativeFunction]\n}");
+ assert(Function.toString() === "function () {\n [FunctionConstructor]\n}");
+
+ console.log("PASS");
+} catch (e) {
+ console.log("FAIL: " + e);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 05:59:05 +0000