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// Copyright 2022 The Tint Authors.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ir/function.h"
#include "src/tint/ir/if.h"
#include "src/tint/ir/loop.h"
#include "src/tint/ir/module.h"
#include "src/tint/ir/switch.h"
#include "src/tint/ir/terminator.h"
// Forward Declarations
namespace tint {
class Program;
} // namespace tint
namespace tint::ast {
class CaseSelector;
} // namespace tint::ast
namespace tint::ir {
/// Builds an ir::Module from a given Program
class Builder {
/// Constructor
/// @param prog the program this ir is associated with
explicit Builder(const Program* prog);
/// Constructor
/// @param mod the ir::Module to wrap with this builder
explicit Builder(Module&& mod);
/// Destructor
/// @returns a new block flow node
Block* CreateBlock();
/// @returns a new terminator flow node
Terminator* CreateTerminator();
/// Creates a function flow node for the given ast::Function
/// @param func the ast::Function
/// @returns the flow node
Function* CreateFunction(const ast::Function* func);
/// Creates an if flow node for the given ast::IfStatement or ast::BreakIfStatement
/// @param stmt the ast::IfStatement or ast::BreakIfStatement
/// @returns the flow node
If* CreateIf(const ast::Statement* stmt);
/// Creates a loop flow node for the given ast loop, while or for statement
/// @param stmt the ast loop, while or for statement
/// @returns the flow node
Loop* CreateLoop(const ast::Statement* stmt);
/// Creates a switch flow node for the given ast::SwitchStatement
/// @param stmt the ast::SwitchStatment
/// @returns the flow node
Switch* CreateSwitch(const ast::SwitchStatement* stmt);
/// Creates a case flow node for the given case branch.
/// @param s the switch to create the case into
/// @param selectors the case selectors for the case statement
/// @returns the start block for the case flow node
Block* CreateCase(Switch* s, const utils::VectorRef<const ast::CaseSelector*> selectors);
/// Branches the given block to the given flow node.
/// @param from the block to branch from
/// @param to the node to branch too
void Branch(Block* from, FlowNode* to);
/// The IR module.
Module ir;
} // namespace tint::ir