61 lines
1.1 KiB
PHP
61 lines
1.1 KiB
PHP
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<?php
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declare(strict_types=1);
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namespace CuyZ\Valinor\Compiler;
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use function str_repeat;
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use function str_replace;
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/** @internal */
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final class Compiler
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{
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private string $code = '';
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/** @var non-negative-int */
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private int $indentation = 0;
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public function compile(Node ...$nodes): self
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{
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$compiler = $this;
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while ($current = array_shift($nodes)) {
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$compiler = $current->compile($compiler);
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if ($nodes !== []) {
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$compiler = $compiler->write("\n");
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}
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}
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return $compiler;
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}
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public function sub(): self
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{
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return new self();
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}
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public function write(string $code): self
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{
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$self = clone $this;
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$self->code .= $code;
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return $self;
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}
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public function indent(): self
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{
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$self = clone $this;
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$self->indentation++;
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return $self;
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}
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public function code(): string
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{
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$indent = str_repeat(' ', $this->indentation);
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return $indent . str_replace("\n", "\n" . $indent, $this->code);
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}
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}
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