Compile QML files ahead of time with qmlcachegen

qmlcachegen compiles bindings and functions to C++ as far as
QQmlJSAotCompiler can. It does respect "pragma Strict" and rejects the
file if it's violated. Furthermore, it sets up the logger to follow the
qt.qml.compiler.aot logging category. By default it's completely silent.

Compiling the examples with qmlcachegen exposes a bug in the type
resolver where it returns an invalid generic type. It should never do
that. Fix it by returning JSValue.

[ChangeLog][QtQml][Important Behavior Changes] QML bindings and
functions are now compiled to C++ by qmlcachegen, if possible. Use the
qt.qml.compiler.aot logging category to receive diagnostics about the
compilation.

Task-number: QTBUG-98305
Change-Id: I6953812c3fd20b68339617a5714fcbe16a384360
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 64 insertions, 0 deletions

diff --git a/tests/auto/qml/qmlcppcodegen/data/jsMathObject.qml b/tests/auto/qml/qmlcppcodegen/data/jsMathObject.qml
new file mode 100644
index 0000000000..795e38b652
--- /dev/null
+++ b/tests/auto/qml/qmlcppcodegen/data/jsMathObject.qml
@@ -0,0 +1,64 @@
+/******************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt JavaScript to C++ compiler.
+**
+** $QT_BEGIN_LICENSE:COMM$
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** $QT_END_LICENSE$
+**
+******************************************************************************/
+
+pragma Strict
+import QtQml
+
+QtObject {
+    property double a: 0
+    property double b: 0
+
+    property double abs: Math.abs(a)
+    property double acos: Math.acos(a)
+    property double acosh: Math.acosh(a)
+    property double asin: Math.asin(a)
+    property double asinh: Math.asinh(a)
+    property double atan: Math.atan(a)
+    property double atanh: Math.atanh(a)
+//    property double atan2: Math.atan2(a)
+    property double cbrt: Math.cbrt(a)
+    property double ceil: Math.ceil(a)
+    property double clz32: Math.clz32(a)
+    property double cos: Math.cos(a)
+    property double cosh: Math.cosh(a)
+    property double exp: Math.exp(a)
+//    property double expm1: Math.expm1(a)
+    property double floor: Math.floor(a)
+    property double fround: Math.fround(a)
+//    property double hypot: Math.hypot(a)
+    property double imul: Math.imul(a, b)
+    property double log: Math.log(a)
+    property double log10: Math.log10(a)
+    property double log1p: Math.log1p(a)
+    property double log2: Math.log2(a)
+    property double max: Math.max(a, b)
+    property double min: Math.min(a, b)
+//    property double pow: Math.pow(a, b)
+    property double random: Math.random()
+    property double round: Math.round(a)
+    property double sign: Math.sign(a)
+    property double sin: Math.sin(a)
+    property double sinh: Math.sinh(a)
+    property double sqrt: Math.sqrt(a)
+    property double tan: Math.tan(a)
+    property double tanh: Math.tanh(a)
+    property double trunc: Math.trunc(a)
+}