From 0e8bcbd9de6d2f824bc47662f4891ee0f241b7d8 Mon Sep 17 00:00:00 2001
From: Jacek Caban <jacek@codeweavers.com>
Date: Thu, 11 Dec 2008 12:27:39 +0100
Subject: [PATCH] jscript: Added Math.PI implementation.

---
 dlls/jscript/math.c       | 20 ++++++++++++++++++--
 dlls/jscript/tests/api.js |  5 +++++
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/dlls/jscript/math.c b/dlls/jscript/math.c
index e6b7202e1a2..ceabc36639b 100644
--- a/dlls/jscript/math.c
+++ b/dlls/jscript/math.c
@@ -54,6 +54,21 @@ static const WCHAR sinW[] = {'s','i','n',0};
 static const WCHAR sqrtW[] = {'s','q','r','t',0};
 static const WCHAR tanW[] = {'t','a','n',0};
 
+static HRESULT math_constant(DOUBLE val, WORD flags, VARIANT *retv)
+{
+    switch(flags) {
+    case DISPATCH_PROPERTYGET:
+        V_VT(retv) = VT_R8;
+        V_R8(retv) = val;
+        return S_OK;
+    case DISPATCH_PROPERTYPUT:
+        return S_OK;
+    }
+
+    FIXME("unhandled flags %x\n", flags);
+    return E_NOTIMPL;
+}
+
 static HRESULT Math_E(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 {
@@ -89,11 +104,12 @@ static HRESULT Math_LN10(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *
     return E_NOTIMPL;
 }
 
+/* ECMA-262 3rd Edition    15.8.1.6 */
 static HRESULT Math_PI(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    TRACE("\n");
+    return math_constant(M_PI, flags, retv);
 }
 
 static HRESULT Math_SQRT2(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
diff --git a/dlls/jscript/tests/api.js b/dlls/jscript/tests/api.js
index 2868c0f7aed..738161217ba 100644
--- a/dlls/jscript/tests/api.js
+++ b/dlls/jscript/tests/api.js
@@ -609,4 +609,9 @@ date = new Date(100);
 ok(date.getTime() === 100, "date.getTime() = " + date.getTime());
 ok(Date.prototype.getTime() === 0, "date.prototype.getTime() = " + Date.prototype.getTime());
 
+ok(typeof(Math.PI) === "number", "typeof(Math.PI) = " + typeof(Math.PI));
+ok(Math.floor(Math.PI*100) === 314, "Math.PI = " + Math.PI);
+Math.PI = "test";
+ok(Math.floor(Math.PI*100) === 314, "modified Math.PI = " + Math.PI);
+
 reportSuccess();