<?php

declare(strict_types=1);

namespace PHPJava\Compiler;

use PHPJava\Compiler\Builder\Segments\AccessFlags;

use PHPJava\Compiler\Builder\Segments\Attributes\Attributes;

use PHPJava\Compiler\Builder\Segments\Attributes\AttributesCount;

use PHPJava\Compiler\Builder\Segments\ConstantPool;

use PHPJava\Compiler\Builder\Segments\ConstantPoolCount;

use PHPJava\Compiler\Builder\Segments\Fields;

use PHPJava\Compiler\Builder\Segments\FieldsCount;

use PHPJava\Compiler\Builder\Segments\Interfaces;

use PHPJava\Compiler\Builder\Segments\InterfacesCount;

use PHPJava\Compiler\Builder\Segments\MagicByte;

use PHPJava\Compiler\Builder\Segments\MajorVersion;

use PHPJava\Compiler\Builder\Segments\Methods;

use PHPJava\Compiler\Builder\Segments\MethodsCount;

use PHPJava\Compiler\Builder\Segments\MinorVersion;

use PHPJava\Compiler\Builder\Segments\SuperClass;

use PHPJava\Compiler\Builder\Segments\ThisClass;

use PHPJava\Compiler\Builder\Structures\ClassFileStructure;

use PHPJava\Core\JVM\Stream\BinaryWriter;

use PHPJava\Exceptions\CompilerException;

class Compiler

{

/**

* @var ClassFileStructure

*/

private $classFileStructureBuilder;

public function __construct(ClassFileStructure $classFileStructureBuilder)

{

$this->classFileStructureBuilder = $classFileStructureBuilder;

}

public function compile($stream): void

{

if (!is_resource($stream)) {

throw new CompilerException('The stream is not a resource.');

}

$binaryWriter = new BinaryWriter($stream);

if (!$binaryWriter->isWritable()) {

throw new CompilerException('The stream is not writable.');

}

$binaryWriter->enableBuffer(true);

// Write magic

MagicByte::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write minor_version

MinorVersion::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write major_version

MajorVersion::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write constant_pool_count

ConstantPoolCount::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write constant_pool

ConstantPool::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write access_flags

AccessFlags::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write this_class

ThisClass::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write super_class

SuperClass::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write interfaces_count

InterfacesCount::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write interfaces

Interfaces::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write fields_count

FieldsCount::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write fields

Fields::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write methods_count

MethodsCount::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Write methods

Methods::init($this->classFileStructureBuilder, $binaryWriter)

->build();

// Build attributes_count

AttributesCount::init(

$this->classFileStructureBuilder->getAttributes(),

$this->classFileStructureBuilder->getConstantPool(),

$binaryWriter

)->build();

// Build attributes

Attributes::init(

$this->classFileStructureBuilder->getAttributes(),

$this->classFileStructureBuilder->getConstantPool(),

$binaryWriter

)->build();

}

}