skia2/resources/sksl/errors/InvalidAssignment.sksl
Brian Osman 4a015c5092 Require initializers on const variable declarations
Bug: skia:10837
Change-Id: I33da2eb1e723ed04ab62d65c21e54306dd362bed
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/372677
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2021-02-23 20:55:01 +00:00

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struct S {
float f;
};
uniform int u;
void assign_to_literal() { 1 = 2; }
void assign_to_uniform() { u = 0; }
void assign_to_const() { const int x = 1; x = 0; }
void assign_to_const_swizzle() { const half4 x = half4(1); x.w = 0; }
void assign_to_repeated_swizzle() { half4 x; x.yy = half2(0); }
void assign_to_foldable_ternary_const_left() { const float l = 1; float r; (true ? l : r) = 0; }
void assign_to_foldable_ternary_const_right() { float l; const float r = 1; (false ? l : r) = 0; }
void assign_to_foldable_ternary_const_both() { const float l = 1; const float r = 1; (true ? l : r) = 0; }
void assign_to_unfoldable_ternary() { float l, r; (sqrt(1) > 0 ? l : r) = 0; }
void assign_to_unary_minus() { float x; -x = 0; }
void assign_to_unary_plus() { float x; +x = 0; } // TODO(skbug.com/10766)
void assign_to_const_param(const int x) { x = 0; }
void assign_to_const_array_param(const int x[1]) { x[0] = 0; }
void assign_to_const_struct_param(const S s) { s.f = 0; }