From: Lars Knoll <lars.knoll@digia.com>
Date: Tue, 11 Dec 2012 22:58:40 +0000 (+0100)
Subject: Make the Math constants constant
X-Git-Tag: upstream/5.2.1~669^2~659^2~721
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=381ce0e902254f39b411f3b21548943720e3db0c;p=platform%2Fupstream%2Fqtdeclarative.git

Make the Math constants constant

Mark the Math.pi etc. constants as readonly.

Change-Id: I9224400ae48c7f21fc3b0478898c7c78aa7f45df
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
---

diff --git a/qmljs_objects.cpp b/qmljs_objects.cpp
index 6e0af63..c3aafae 100644
--- a/qmljs_objects.cpp
+++ b/qmljs_objects.cpp
@@ -359,6 +359,12 @@ bool Object::__defineOwnProperty__(ExecutionContext *ctx, String *name, Property
     return false;
 }
 
+bool Object::__defineOwnProperty__(ExecutionContext *ctx, const QString &name, PropertyDescriptor *desc)
+{
+    return __defineOwnProperty__(ctx, ctx->engine->identifier(name), desc);
+}
+
+
 Value Object::call(ExecutionContext *context, Value , Value *, int)
 {
     context->throwTypeError();
diff --git a/qmljs_objects.h b/qmljs_objects.h
index 9daa841..51127f6 100644
--- a/qmljs_objects.h
+++ b/qmljs_objects.h
@@ -452,6 +452,7 @@ struct Object: Managed {
     virtual bool __hasProperty__(const ExecutionContext *ctx, String *name) const;
     virtual bool __delete__(ExecutionContext *ctx, String *name);
     virtual bool __defineOwnProperty__(ExecutionContext *ctx, String *name, PropertyDescriptor *desc);
+    bool __defineOwnProperty__(ExecutionContext *ctx, const QString &name, PropertyDescriptor *desc);
 
     virtual Value call(ExecutionContext *context, Value, Value *, int);
 
diff --git a/qv4ecmaobjects.cpp b/qv4ecmaobjects.cpp
index 7932257..c9b9593 100644
--- a/qv4ecmaobjects.cpp
+++ b/qv4ecmaobjects.cpp
@@ -2954,14 +2954,28 @@ Value ErrorPrototype::method_toString(ExecutionContext *ctx)
 //
 MathObject::MathObject(ExecutionContext *ctx)
 {
-    __put__(ctx, QStringLiteral("E"), Value::fromDouble(::exp(1.0)));
-    __put__(ctx, QStringLiteral("LN2"), Value::fromDouble(::log(2.0)));
-    __put__(ctx, QStringLiteral("LN10"), Value::fromDouble(::log(10.0)));
-    __put__(ctx, QStringLiteral("LOG2E"), Value::fromDouble(1.0/::log(2.0)));
-    __put__(ctx, QStringLiteral("LOG10E"), Value::fromDouble(1.0/::log(10.0)));
-    __put__(ctx, QStringLiteral("PI"), Value::fromDouble(qt_PI));
-    __put__(ctx, QStringLiteral("SQRT1_2"), Value::fromDouble(::sqrt(0.5)));
-    __put__(ctx, QStringLiteral("SQRT2"), Value::fromDouble(::sqrt(2.0)));
+    PropertyDescriptor desc;
+    desc.type = PropertyDescriptor::Data;
+    desc.writable = PropertyDescriptor::Unset;
+    desc.enumberable = PropertyDescriptor::Unset;
+    desc.configurable = PropertyDescriptor::Unset;
+
+    desc.value = Value::fromDouble(::exp(1.0));
+    __defineOwnProperty__(ctx, QStringLiteral("E"), &desc);
+    desc.value = Value::fromDouble(::log(2.0));
+    __defineOwnProperty__(ctx, QStringLiteral("LN2"), &desc);
+    desc.value = Value::fromDouble(::log(10.0));
+    __defineOwnProperty__(ctx, QStringLiteral("LN10"), &desc);
+    desc.value = Value::fromDouble(1.0/::log(2.0));
+    __defineOwnProperty__(ctx, QStringLiteral("LOG2E"), &desc);
+    desc.value = Value::fromDouble(1.0/::log(10.0));
+    __defineOwnProperty__(ctx, QStringLiteral("LOG10E"), &desc);
+    desc.value = Value::fromDouble(qt_PI);
+    __defineOwnProperty__(ctx, QStringLiteral("PI"), &desc);
+    desc.value = Value::fromDouble(::sqrt(0.5));
+    __defineOwnProperty__(ctx, QStringLiteral("SQRT1_2"), &desc);
+    desc.value = Value::fromDouble(::sqrt(2.0));
+    __defineOwnProperty__(ctx, QStringLiteral("SQRT2"), &desc);
 
     __put__(ctx, QStringLiteral("abs"), method_abs, 1);
     __put__(ctx, QStringLiteral("acos"), method_acos, 1);