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Diffstat (limited to 'src/glsl/ast_to_hir.cpp')
-rw-r--r--src/glsl/ast_to_hir.cpp9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index dfb016cf7d..1bca3ecf12 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -639,7 +639,14 @@ do_assignment(exec_list *instructions, struct _mesa_glsl_parse_state *state,
bool error_emitted = (lhs->type->is_error() || rhs->type->is_error());
if (!error_emitted) {
- if (!lhs->is_lvalue()) {
+ if (lhs->variable_referenced() != NULL
+ && lhs->variable_referenced()->read_only) {
+ _mesa_glsl_error(&lhs_loc, state,
+ "assignment to read-only variable '%s'",
+ lhs->variable_referenced()->name);
+ error_emitted = true;
+
+ } else if (!lhs->is_lvalue()) {
_mesa_glsl_error(& lhs_loc, state, "non-lvalue in assignment");
error_emitted = true;
}