Initial import

third_party/duktape/duk_henv.h

@@ -0,0 +1,45 @@
+/*
+ *  Environment object representation.
+ */
+
+#if !defined(DUK_HENV_H_INCLUDED)
+#define DUK_HENV_H_INCLUDED
+
+#if defined(DUK_USE_ASSERTIONS)
+DUK_INTERNAL_DECL void duk_hdecenv_assert_valid(duk_hdecenv *h);
+DUK_INTERNAL_DECL void duk_hobjenv_assert_valid(duk_hobjenv *h);
+#define DUK_HDECENV_ASSERT_VALID(h)  do { duk_hdecenv_assert_valid((h)); } while (0)
+#define DUK_HOBJENV_ASSERT_VALID(h)  do { duk_hobjenv_assert_valid((h)); } while (0)
+#else
+#define DUK_HDECENV_ASSERT_VALID(h)  do {} while (0)
+#define DUK_HOBJENV_ASSERT_VALID(h)  do {} while (0)
+#endif
+
+struct duk_hdecenv {
+	/* Shared object part. */
+	duk_hobject obj;
+
+	/* These control variables provide enough information to access live
+	 * variables for a closure that is still open.  If thread == NULL,
+	 * the record is closed and the identifiers are in the property table.
+	 */
+	duk_hthread *thread;
+	duk_hobject *varmap;
+	duk_size_t regbase_byteoff;
+};
+
+struct duk_hobjenv {
+	/* Shared object part. */
+	duk_hobject obj;
+
+	/* Target object and 'this' binding for object binding. */
+	duk_hobject *target;
+
+	/* The 'target' object is used as a this binding in only some object
+	 * environments.  For example, the global environment does not provide
+	 * a this binding, but a with statement does.
+	 */
+	duk_bool_t has_this;
+};
+
+#endif  /* DUK_HENV_H_INCLUDED */