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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_ASTVARDECLARATIONS
#define SKSL_ASTVARDECLARATIONS
#include "SkSLASTDeclaration.h"
#include "SkSLASTStatement.h"
#include "SkSLASTType.h"
#include "../SkSLUtil.h"
#include "../ir/SkSLModifiers.h"
namespace SkSL {
/**
* A single variable declaration within a var declaration statement. For instance, the statement
* 'int x = 2, y[3];' is an ASTVarDeclarations statement containing two individual ASTVarDeclaration
* instances.
*/
struct ASTVarDeclaration {
ASTVarDeclaration(const String name,
std::vector<std::unique_ptr<ASTExpression>> sizes,
std::unique_ptr<ASTExpression> value)
: fName(name)
, fSizes(std::move(sizes))
, fValue(std::move(value)) {}
String description() const {
String result = fName;
for (const auto& size : fSizes) {
if (size) {
result += "[" + size->description() + "]";
} else {
result += "[]";
}
}
if (fValue) {
result += " = " + fValue->description();
}
return result;
}
String fName;
// array sizes, if any. e.g. 'foo[3][]' has sizes [3, null]
std::vector<std::unique_ptr<ASTExpression>> fSizes;
// initial value, may be null
std::unique_ptr<ASTExpression> fValue;
};
/**
* A variable declaration statement, which may consist of one or more individual variables.
*/
struct ASTVarDeclarations : public ASTDeclaration {
ASTVarDeclarations(Modifiers modifiers,
std::unique_ptr<ASTType> type,
std::vector<ASTVarDeclaration> vars)
: INHERITED(type->fPosition, kVar_Kind)
, fModifiers(modifiers)
, fType(std::move(type))
, fVars(std::move(vars)) {}
String description() const override {
String result = fModifiers.description() + fType->description() + " ";
String separator;
for (const auto& var : fVars) {
result += separator;
separator = ", ";
result += var.description();
}
return result;
}
const Modifiers fModifiers;
const std::unique_ptr<ASTType> fType;
const std::vector<ASTVarDeclaration> fVars;
typedef ASTDeclaration INHERITED;
};
} // namespace
#endif
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