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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKSL_INTERFACEBLOCK
#define SKSL_INTERFACEBLOCK
#include "SkSLProgramElement.h"
#include "SkSLSymbolTable.h"
#include "SkSLVarDeclarations.h"
namespace SkSL {
/**
* An interface block, as in:
*
* out sk_PerVertex {
* layout(builtin=0) float4 sk_Position;
* layout(builtin=1) float sk_PointSize;
* };
*
* At the IR level, this is represented by a single variable of struct type.
*/
struct InterfaceBlock : public ProgramElement {
InterfaceBlock(int offset, const Variable* var, String typeName, String instanceName,
std::vector<std::unique_ptr<Expression>> sizes,
std::shared_ptr<SymbolTable> typeOwner)
: INHERITED(offset, kInterfaceBlock_Kind)
, fVariable(*var)
, fTypeName(std::move(typeName))
, fInstanceName(std::move(instanceName))
, fSizes(std::move(sizes))
, fTypeOwner(typeOwner) {}
String description() const override {
String result = fVariable.fModifiers.description() + fTypeName + " {\n";
const Type* structType = &fVariable.fType;
while (structType->kind() == Type::kArray_Kind) {
structType = &structType->componentType();
}
for (const auto& f : structType->fields()) {
result += f.description() + "\n";
}
result += "}";
if (fInstanceName.size()) {
result += " " + fInstanceName;
for (const auto& size : fSizes) {
result += "[";
if (size) {
result += size->description();
}
result += "]";
}
}
return result + ";";
}
const Variable& fVariable;
const String fTypeName;
const String fInstanceName;
std::vector<std::unique_ptr<Expression>> fSizes;
const std::shared_ptr<SymbolTable> fTypeOwner;
typedef ProgramElement INHERITED;
};
} // namespace
#endif
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