Re-re-land "added GrSkSLFP and converted DitherEffect to use it"

This reverts commit 6c48e4d11ce80fa5cfef56e13b2d5847fe94a7cc.

Bug: skia:
Change-Id: I7ee78990fc30eec545d1856e59eb6e0573089426
Reviewed-on: https://skia-review.googlesource.com/144348
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/src/sksl/ir/SkSLConstructor.h b/src/sksl/ir/SkSLConstructor.h
index 5e7c3d0d79..145e117453 100644
--- a/src/sksl/ir/SkSLConstructor.h
+++ b/src/sksl/ir/SkSLConstructor.h
@@ -43,8 +43,7 @@ struct Constructor : public Expression {
                        fType == *irGenerator.fContext.fUShort_Type) {
                 // promote uint(1) to 1u
                 int64_t intValue = ((IntLiteral&) *fArguments[0]).fValue;
-                return std::unique_ptr<Expression>(new IntLiteral(irGenerator.fContext,
-                                                                  fOffset,
+                return std::unique_ptr<Expression>(new IntLiteral(fOffset,
                                                                   intValue,
                                                                   &fType));
             }
@@ -61,6 +60,14 @@ struct Constructor : public Expression {
         return false;
     }
 
+    std::unique_ptr<Expression> clone() const override {
+        std::vector<std::unique_ptr<Expression>> cloned;
+        for (const auto& arg : fArguments) {
+            cloned.push_back(arg->clone());
+        }
+        return std::unique_ptr<Expression>(new Constructor(fOffset, fType, std::move(cloned)));
+    }
+
     String description() const override {
         String result = fType.description() + "(";
         String separator;