N°4789 - Parse datamodel module.xxx.php files instead of interpreting them (#746)

* N°4789 - Parse datamodel module.xxx.php files instead of interpreting them - refactoring all in a dedicated service first

* N°4789 - fix broken setup + tests

* N°4789 - replace legacy eval by module file parsing

* N°4789 - handle constants and if conditional structures

* N°4789 - compute boolean expressions

* N°4789 - make autoselect and dependencies work as well

* cleanup

* N°4789 - fix BeforeWritingConfig calls during setup

* N°4789 - refactor and split in ModuleDiscoveryEvaluationService + handle ModuleInstallerAPI methods calls during setup

* N°4789 - PR review changes with Romain

* PR review + code cleanup + added usecases and test cover

* temp evaluation work

* replace eval by iTop custom evaluation classes

* move PhpParser/Evaluation classes in a specific namespave + composer dumpautoload

* fix broken setup

* fix broken setup

* complete Evaluators list + autoload

* cleanup useless testing resources

* cleanup + replace last eval call in VariableEvaluator

* fix few Evaluators code

* enhance nikic evaluators + test with/without nikic lib

* Evaluator fixes/enhancements + tests

* bump to nikic fork temporarly

* bump nikic-parser fork + use only nikic fork  evaluation + cleanup itop redondant evaluators

* review with Romain: use distinct whitelists in setup time/runtime + move ModuleFileParser internal logic into ModuleFileReader

* PhpExpressionEvaluator used via constructor and not as a service

* dumpautoload again after rebase

sources/PhpParser/Evaluation/PhpExpressionEvaluator.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace Combodo\iTop\PhpParser\Evaluation;
+
+use ModuleFileParser;
+use ModuleFileReaderException;
+use PhpParser\ConstExprEvaluator;
+use PhpParser\Node\Expr;
+use PhpParser\ParserFactory;
+
+/**
+ * Used at runtime/setup time
+ */
+class PhpExpressionEvaluator {
+
+	/** @var ConstExprEvaluator $oConstExprEvaluator */
+	private $oConstExprEvaluator;
+
+	public function __construct(array $functionsWhiteList=[], array $staticCallsWhitelist=[]) {
+		$this->oConstExprEvaluator = new ConstExprEvaluator();
+		$this->oConstExprEvaluator->setStaticcallsWhitelist($staticCallsWhitelist);
+		$this->oConstExprEvaluator->setFunctionsWhitelist($functionsWhiteList);
+	}
+
+	public function EvaluateExpression(Expr $oExpression) : mixed
+	{
+		return $this->oConstExprEvaluator->evaluateDirectly($oExpression);
+	}
+
+	/**
+	 * @param string $sBooleanExpr
+	 *
+	 * @return bool
+	 * @throws \ModuleFileReaderException
+	 */
+	public function ParseAndEvaluateBooleanExpression(string $sBooleanExpr) : bool
+	{
+		return $this->ParseAndEvaluateExpression($sBooleanExpr);
+	}
+
+	public function ParseAndEvaluateExpression(string $sExpr) : mixed
+	{
+		$sPhpContent = <<<PHP
+<?php
+$sExpr;
+PHP;
+		try{
+			$oParser = (new ParserFactory())->createForNewestSupportedVersion();
+			$aNodes = $oParser->parse($sPhpContent);
+			$oExpr = $aNodes[0];
+			return $this->EvaluateExpression($oExpr->expr);
+		} catch (\Throwable $t) {
+			throw new ModuleFileReaderException("Eval of '$sExpr' caused an error:".$t->getMessage());
+		}
+	}
+}