/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SKSL_ASTVARDECLARATIONS
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#define SKSL_ASTVARDECLARATIONS
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#include "SkSLASTDeclaration.h"
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#include "SkSLASTStatement.h"
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#include "SkSLASTType.h"
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#include "../SkSLUtil.h"
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#include "../ir/SkSLModifiers.h"
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namespace SkSL {
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/**
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* A single variable declaration within a var declaration statement. For instance, the statement
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* 'int x = 2, y[3];' is an ASTVarDeclarations statement containing two individual ASTVarDeclaration
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* instances.
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*/
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struct ASTVarDeclaration {
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ASTVarDeclaration(StringFragment name,
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std::vector<std::unique_ptr<ASTExpression>> sizes,
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std::unique_ptr<ASTExpression> value)
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: fName(name)
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, fSizes(std::move(sizes))
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, fValue(std::move(value)) {}
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String description() const {
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String result(fName);
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for (const auto& size : fSizes) {
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if (size) {
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result += "[" + size->description() + "]";
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} else {
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result += "[]";
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}
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}
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if (fValue) {
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result += " = " + fValue->description();
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}
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return result;
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}
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StringFragment fName;
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// array sizes, if any. e.g. 'foo[3][]' has sizes [3, null]
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std::vector<std::unique_ptr<ASTExpression>> fSizes;
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// initial value, may be null
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std::unique_ptr<ASTExpression> fValue;
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};
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/**
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* A variable declaration statement, which may consist of one or more individual variables.
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*/
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struct ASTVarDeclarations : public ASTDeclaration {
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ASTVarDeclarations(Modifiers modifiers,
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std::unique_ptr<ASTType> type,
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std::vector<ASTVarDeclaration> vars)
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: INHERITED(type->fOffset, kVar_Kind)
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, fModifiers(modifiers)
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, fType(std::move(type))
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, fVars(std::move(vars)) {}
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String description() const override {
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String result = fModifiers.description() + fType->description() + " ";
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String separator;
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for (const auto& var : fVars) {
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result += separator;
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separator = ", ";
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result += var.description();
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}
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return result;
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}
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const Modifiers fModifiers;
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const std::unique_ptr<ASTType> fType;
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const std::vector<ASTVarDeclaration> fVars;
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typedef ASTDeclaration INHERITED;
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};
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} // namespace
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#endif
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