LibJS: Add Boolean constructor object

9 files changed, 303 insertions, 0 deletions

diff --git a/Libraries/LibJS/Runtime/BooleanConstructor.cpp b/Libraries/LibJS/Runtime/BooleanConstructor.cpp
new file mode 100644
index 0000000000..6d756d5865
--- /dev/null
+++ b/Libraries/LibJS/Runtime/BooleanConstructor.cpp
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2020, Jack Karamanian <karamanian.jack@gmail.com>
+ * 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 <LibJS/Heap/Heap.h>
+#include <LibJS/Interpreter.h>
+#include <LibJS/Runtime/BooleanConstructor.h>
+#include <LibJS/Runtime/BooleanObject.h>
+#include <LibJS/Runtime/BooleanPrototype.h>
+
+namespace JS {
+BooleanConstructor::BooleanConstructor()
+{
+    put("prototype", Value(interpreter().boolean_prototype()));
+    put("length", Value(1));
+}
+
+BooleanConstructor::~BooleanConstructor() {}
+
+Value BooleanConstructor::call(Interpreter& interpreter)
+{
+    return Value(interpreter.argument(0).to_boolean());
+}
+
+Value BooleanConstructor::construct(Interpreter& interpreter)
+{
+    auto bool_object = interpreter.heap().allocate<BooleanObject>(interpreter.argument(0).to_boolean());
+    return Value(bool_object);
+}
+}
diff --git a/Libraries/LibJS/Runtime/BooleanConstructor.h b/Libraries/LibJS/Runtime/BooleanConstructor.h
new file mode 100644
index 0000000000..05fa5a5b63
--- /dev/null
+++ b/Libraries/LibJS/Runtime/BooleanConstructor.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2020, Jack Karamanian <karamanian.jack@gmail.com>
+ * 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 BooleanConstructor final : public NativeFunction {
+public:
+    BooleanConstructor();
+    virtual ~BooleanConstructor() 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 "BooleanConstructor"; }
+};
+}
diff --git a/Libraries/LibJS/Runtime/BooleanObject.cpp b/Libraries/LibJS/Runtime/BooleanObject.cpp
new file mode 100644
index 0000000000..4b30001de7
--- /dev/null
+++ b/Libraries/LibJS/Runtime/BooleanObject.cpp
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2020, Jack Karamanian <karamanian.jack@gmail.com>
+ * 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 <LibJS/Interpreter.h>
+#include <LibJS/Runtime/BooleanObject.h>
+
+namespace JS {
+BooleanObject::BooleanObject(bool value)
+    : m_value(value)
+{
+    set_prototype(interpreter().boolean_prototype());
+}
+
+BooleanObject::~BooleanObject()
+{
+}
+}
diff --git a/Libraries/LibJS/Runtime/BooleanObject.h b/Libraries/LibJS/Runtime/BooleanObject.h
new file mode 100644
index 0000000000..a27a129f61
--- /dev/null
+++ b/Libraries/LibJS/Runtime/BooleanObject.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2020, Jack Karamanian <karamanian.jack@gmail.com>
+ * 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 BooleanObject : public Object {
+public:
+    explicit BooleanObject(bool);
+    virtual ~BooleanObject() override;
+
+    virtual Value value_of() const override
+    {
+        return Value(m_value);
+    }
+
+private:
+    virtual const char* class_name() const override { return "BooleanObject"; }
+    virtual bool is_boolean() const override { return true; }
+    bool m_value { false };
+};
+}
diff --git a/Libraries/LibJS/Runtime/BooleanPrototype.cpp b/Libraries/LibJS/Runtime/BooleanPrototype.cpp
new file mode 100644
index 0000000000..c7423dd492
--- /dev/null
+++ b/Libraries/LibJS/Runtime/BooleanPrototype.cpp
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2020, Jack Karamanian <karamanian.jack@gmail.com>
+ * 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 <LibJS/Interpreter.h>
+#include <LibJS/Runtime/BooleanPrototype.h>
+#include <LibJS/Runtime/Error.h>
+
+namespace JS {
+BooleanPrototype::BooleanPrototype()
+    : BooleanObject(false)
+{
+    put_native_function("toString", to_string);
+    put_native_function("valueOf", value_of);
+}
+
+BooleanPrototype::~BooleanPrototype() {}
+
+Value BooleanPrototype::to_string(Interpreter& interpreter)
+{
+    auto this_object = interpreter.this_value();
+    if (this_object.is_boolean()) {
+        return js_string(interpreter.heap(), this_object.as_bool() ? "true" : "false");
+    }
+    if (!this_object.is_object() || !this_object.as_object().is_boolean()) {
+        interpreter.throw_exception<Error>("TypeError", "Not a Boolean");
+        return {};
+    }
+
+    bool bool_value = static_cast<BooleanObject&>(this_object.as_object()).value_of().as_bool();
+    return js_string(interpreter.heap(), bool_value ? "true" : "false");
+}
+
+Value BooleanPrototype::value_of(Interpreter& interpreter)
+{
+    auto this_object = interpreter.this_value();
+    if (this_object.is_boolean()) {
+        return this_object;
+    }
+    if (!this_object.is_object() || !this_object.as_object().is_boolean()) {
+        interpreter.throw_exception<Error>("TypeError", "Not a Boolean");
+        return {};
+    }
+
+    return static_cast<BooleanObject&>(this_object.as_object()).value_of();
+}
+}
diff --git a/Libraries/LibJS/Runtime/BooleanPrototype.h b/Libraries/LibJS/Runtime/BooleanPrototype.h
new file mode 100644
index 0000000000..4050767839
--- /dev/null
+++ b/Libraries/LibJS/Runtime/BooleanPrototype.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2020, Jack Karamanian <karamanian.jack@gmail.com>
+ * 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/BooleanObject.h>
+
+namespace JS {
+class BooleanPrototype final : public BooleanObject {
+public:
+    BooleanPrototype();
+    virtual ~BooleanPrototype() override;
+
+private:
+    virtual const char* class_name() const override { return "BooleanPrototype"; }
+
+    static Value to_string(Interpreter&);
+    static Value value_of(Interpreter&);
+};
+}
diff --git a/Libraries/LibJS/Runtime/GlobalObject.cpp b/Libraries/LibJS/Runtime/GlobalObject.cpp
index af85902425..4bda346d81 100644
--- a/Libraries/LibJS/Runtime/GlobalObject.cpp
+++ b/Libraries/LibJS/Runtime/GlobalObject.cpp
@@ -29,6 +29,7 @@
 #include <LibJS/Heap/Heap.h>
 #include <LibJS/Interpreter.h>
 #include <LibJS/Runtime/ArrayConstructor.h>
+#include <LibJS/Runtime/BooleanConstructor.h>
 #include <LibJS/Runtime/ConsoleObject.h>
 #include <LibJS/Runtime/DateConstructor.h>
 #include <LibJS/Runtime/ErrorConstructor.h>
@@ -58,6 +59,7 @@ GlobalObject::GlobalObject()
     put("Math", heap().allocate<MathObject>());
     put("Object", heap().allocate<ObjectConstructor>());
     put("Array", heap().allocate<ArrayConstructor>());
+    put("Boolean", heap().allocate<BooleanConstructor>());
 }
 
 GlobalObject::~GlobalObject()
diff --git a/Libraries/LibJS/Runtime/Object.h b/Libraries/LibJS/Runtime/Object.h
index 8772e6b1e2..7b9c8dcdfb 100644
--- a/Libraries/LibJS/Runtime/Object.h
+++ b/Libraries/LibJS/Runtime/Object.h
@@ -59,6 +59,7 @@ public:
     void put_native_property(const FlyString& property_name, AK::Function<Value(Interpreter&)> getter, AK::Function<void(Interpreter&, Value)> setter);
 
     virtual bool is_array() const { return false; }
+    virtual bool is_boolean() const { return false; }
     virtual bool is_date() const { return false; }
     virtual bool is_error() const { return false; }
     virtual bool is_function() const { return false; }
diff --git a/Libraries/LibJS/Runtime/Value.cpp b/Libraries/LibJS/Runtime/Value.cpp
index 6e5d11c3ba..fa489a65b7 100644
--- a/Libraries/LibJS/Runtime/Value.cpp
+++ b/Libraries/LibJS/Runtime/Value.cpp
@@ -29,6 +29,7 @@
 #include <LibJS/Heap/Heap.h>
 #include <LibJS/Interpreter.h>
 #include <LibJS/Runtime/Array.h>
+#include <LibJS/Runtime/BooleanObject.h>
 #include <LibJS/Runtime/Error.h>
 #include <LibJS/Runtime/NumberObject.h>
 #include <LibJS/Runtime/Object.h>
@@ -110,6 +111,9 @@ Object* Value::to_object(Heap& heap) const
     if (is_number())
         return heap.allocate<NumberObject>(m_value.as_double);
 
+    if (is_boolean())
+        return heap.allocate<BooleanObject>(m_value.as_bool);
+
     if (is_null() || is_undefined()) {
         heap.interpreter().throw_exception<Error>("TypeError", "ToObject on null or undefined.");
         return nullptr;