[PATCH vkd3d 5/8] vkd3d-shader/hlsl: Check argument count for constructors.

[Giovanni Mascellani]

Based on a patch by Francisco Casas.

Signed-off-by: Giovanni Mascellani 
---
 libs/vkd3d-shader/hlsl.y | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y
index e7fe74d8..3fff8fc6 100644
--- a/libs/vkd3d-shader/hlsl.y
+++ b/libs/vkd3d-shader/hlsl.y
@@ -2044,12 +2044,20 @@ static struct list *add_call(struct hlsl_ctx *ctx, const char *name,
 static struct list *add_constructor(struct hlsl_ctx *ctx, struct hlsl_type *type,
         struct parse_initializer *params, struct vkd3d_shader_location loc)
 {
+    unsigned int size = initializer_size(params);
     static unsigned int counter;
     struct hlsl_ir_load *load;
     struct hlsl_ir_var *var;
     unsigned int i, idx = 0;
     char name[23];

+    if (hlsl_type_component_count(type) != size)
+    {
+        hlsl_error(ctx, &loc, VKD3D_SHADER_ERROR_HLSL_WRONG_PARAMETER_COUNT,
+                "Expected %u components in constructor, but got %u.", hlsl_type_component_count(type), size);
+        return NULL;
+    }
+
     sprintf(name, "<constructor-%x>", counter++);
     if (!(var = hlsl_new_synthetic_var(ctx, name, type, loc)))
         return NULL;