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* Copyright 2021 Google LLC
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#include "include/private/SkTArray.h"
#include "src/sksl/ir/SkSLExpression.h"
#include "src/sksl/ir/SkSLVariable.h"
namespace SkSL {
* A call to a child effect object (shader, color filter, or blender).
class ChildCall final : public Expression {
inline static constexpr Kind kExpressionKind = Kind::kChildCall;
ChildCall(Position pos, const Type* type, const Variable* child, ExpressionArray arguments)
: INHERITED(pos, kExpressionKind, type)
, fChild(*child)
, fArguments(std::move(arguments)) {}
// Creates the child call; reports errors via ASSERT.
static std::unique_ptr<Expression> Make(const Context& context,
Position pos,
const Type* returnType,
const Variable& child,
ExpressionArray arguments);
const Variable& child() const {
return fChild;
ExpressionArray& arguments() {
return fArguments;
const ExpressionArray& arguments() const {
return fArguments;
bool hasProperty(Property property) const override;
std::unique_ptr<Expression> clone(Position pos) const override;
std::string description() const override;
const Variable& fChild;
ExpressionArray fArguments;
using INHERITED = Expression;
} // namespace SkSL