TypePHP 编译器
https://swoole.com/aot/
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124 lines
3.5 KiB
124 lines
3.5 KiB
<?php
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/**
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* This file is part of Swoole-Compiler(AOT).
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*
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* @link https://www.swoole.com/
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* @contact service@swoole.com
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*/
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namespace PhpAot\Php\Context;
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use PhpAot\Php\Analysis\SsaBuilder;
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class FunctionContext
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{
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/** SSA builder for the current function. Built once per function, discarded with the context. */
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public ?SsaBuilder $ssaBuilder = null;
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/** Map of SSA-stable object variable name => class name (SsaPropOptimizer). */
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public array $stableObjects = [];
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/** Map of hoisted property refs: objName => [propName => true] (SsaPropOptimizer). */
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public array $hoistedProps = [];
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/** Map of properties that must not be hoisted: objName => [propName|'*' => true] (SsaPropOptimizer). */
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public array $unsafeObjectProps = [];
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/**
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* @var array<string, string>
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*/
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public array $objects = [];
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/**
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* @var array<string, array>
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*/
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public array $stdArrays = [];
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/**
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* @var array<string, array>
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*/
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public array $stdContainers = [];
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public array $localVars = [];
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public array $staticVars = [];
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public array $globalVars = [];
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/**
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* @var array<string, string>
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*/
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public array $ceWrappers = [];
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public int $tmpVarIndex = 0;
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public array $arguments = [];
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public bool $inLoop = false;
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public bool $inClosure = false;
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/** True if any break N (N > 1) appears in this function. */
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public bool $hasMultiLevelBreak = false;
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/** True if any continue N (N > 1) appears in this function. */
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public bool $hasMultiLevelContinue = false;
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/**
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* 赋值表达式的左值，写操作，右值为读操作.
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*/
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public bool $inAssignExpr = false;
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public array $beforeStmtLines = [];
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public array $afterStmtLines = [];
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public array $objectProps;
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/** Map of static property local slots. int/float keep stable zval* slots; other types use Var slots. */
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public array $staticPropRefs = [];
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public int $scopeLevel = 0;
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/**
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* @var array<int, ScopeContext>
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*/
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public array $scopeLayouts = [];
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public function __construct()
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{
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$this->localVars = [];
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$this->staticVars = [];
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$this->arguments = [];
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$this->objects = [];
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$this->stdArrays = [];
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$this->stdContainers = [];
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$this->objectProps = [];
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$this->ssaBuilder = null;
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$this->stableObjects = [];
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$this->hoistedProps = [];
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$this->unsafeObjectProps = [];
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$this->staticPropRefs = [];
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$this->ceWrappers = [];
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$this->tmpVarIndex = 0;
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$this->scopeLayouts = [];
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$this->scopeLevel = 0;
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$this->inLoop = false;
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$this->inClosure = false;
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$this->inAssignExpr = false;
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}
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public function enterScope(): void
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{
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$this->scopeLayouts[$this->scopeLevel] = new ScopeContext();
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$this->scopeLevel++;
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}
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public function leaveScope(): void
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{
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$this->scopeLevel--;
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unset($this->scopeLayouts[$this->scopeLevel]);
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}
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public function resetAnalysisTemporaries(array $localVars, int $tmpVarIndex): void
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{
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$this->localVars = $localVars;
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$this->tmpVarIndex = $tmpVarIndex;
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$this->beforeStmtLines = [];
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$this->afterStmtLines = [];
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$this->objectProps = [];
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$this->hoistedProps = [];
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$this->staticPropRefs = [];
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$this->scopeLayouts = [];
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$this->scopeLevel = 0;
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$this->inLoop = false;
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$this->inAssignExpr = false;
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}
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}
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