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changeset 9349:0fccad3ce40d

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Introduce CompilerDirectives.Unsafe. Mark Frame.getArguments method as unsafe.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sat, 27 Apr 2013 00:04:11 +0200
parents 927e0792094b
children 6bb12a72d26b cc2149467eed 412f6e6dad73
files graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CompilerDirectives.java graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/Frame.java
diffstat 2 files changed, 10 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CompilerDirectives.java	Fri Apr 26 23:03:09 2013 +0200
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CompilerDirectives.java	Sat Apr 27 00:04:11 2013 +0200
@@ -117,4 +117,13 @@
     @Target({ElementType.FIELD})
     public @interface CompilationFinal {
     }
+
+    /**
+     * Marks methods that are considered unsafe. Wrong usage of those methods can lead to unexpected
+     * behavior including a crash of the runtime. Therefore, special care should be taken.
+     */
+    @Retention(RetentionPolicy.RUNTIME)
+    @Target({ElementType.METHOD})
+    public @interface Unsafe {
+    }
 }
--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/Frame.java	Fri Apr 26 23:03:09 2013 +0200
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/Frame.java	Sat Apr 27 00:04:11 2013 +0200
@@ -45,6 +45,7 @@
      * @param clazz the known type of the arguments object as a compile time constant
      * @return the arguments used when calling this method
      */
+    @CompilerDirectives.Unsafe
     <T extends Arguments> T getArguments(Class<T> clazz);
 
     /**