feat(rvalue): Add set_location() method to allow location updates

Author: tempdragon

gccjit_sys/src/lib.rs

@@ -666,4 +666,8 @@ extern {
 
     #[cfg(feature="master")]
     pub fn gcc_jit_function_new_temp(func: *mut gcc_jit_function, loc: *mut gcc_jit_location, ty: *mut gcc_jit_type) -> *mut gcc_jit_lvalue;
+
+    #[cfg(feature="master")]
+    pub fn gcc_jit_rvalue_set_location(rvalue: *mut gcc_jit_rvalue,
+                                       loc: *mut gcc_jit_location);
 }

src/rvalue.rs

@@ -101,6 +101,15 @@ impl<'ctx> RValue<'ctx> {
         }
     }
 
+    /// Sets the location of this RValue.
+    #[cfg(feature="master")]
+    pub unsafe fn set_location(&self, loc: Location) {
+        unsafe {
+            let loc_ptr = location::get_ptr(&loc);
+            gccjit_sys::gcc_jit_rvalue_set_location(self.ptr, loc_ptr);
+        }
+    }
+
     /// Given an RValue x and a Field f, returns an RValue representing
     /// C's x.f.
     pub fn access_field(&self,