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-rw-r--r--mesalib/src/glsl/ast.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/mesalib/src/glsl/ast.h b/mesalib/src/glsl/ast.h
index 79054be86..93d36bf34 100644
--- a/mesalib/src/glsl/ast.h
+++ b/mesalib/src/glsl/ast.h
@@ -211,6 +211,7 @@ public:
subexpressions[1] = NULL;
subexpressions[2] = NULL;
primary_expression.identifier = (char *) identifier;
+ this->non_lvalue_description = NULL;
}
static const char *operator_string(enum ast_operators op);
@@ -238,6 +239,18 @@ public:
* \c ast_function_call
*/
exec_list expressions;
+
+ /**
+ * For things that can't be l-values, this describes what it is.
+ *
+ * This text is used by the code that generates IR for assignments to
+ * detect and emit useful messages for assignments to some things that
+ * can't be l-values. For example, pre- or post-incerement expressions.
+ *
+ * \note
+ * This pointer may be \c NULL.
+ */
+ const char *non_lvalue_description;
};
class ast_expression_bin : public ast_expression {