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256 lines
10 KiB
C++
256 lines
10 KiB
C++
/*
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* GDevelop Core
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* Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
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* reserved. This project is released under the MIT License.
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*/
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#include "EventsIdentifiersFinder.h"
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#include "GDCore/Events/Event.h"
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#include "GDCore/Events/Instruction.h"
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#include "GDCore/Events/Parsers/ExpressionParser2NodePrinter.h"
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#include "GDCore/Events/Parsers/ExpressionParser2NodeWorker.h"
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#include "GDCore/Extensions/Metadata/ExpressionMetadata.h"
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#include "GDCore/Extensions/Metadata/InstructionMetadata.h"
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#include "GDCore/Extensions/Metadata/MetadataProvider.h"
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#include "GDCore/Extensions/Platform.h"
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#include "GDCore/IDE/Events/ArbitraryEventsWorker.h"
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#include "GDCore/Project/Layout.h"
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#include "GDCore/Project/Object.h"
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#include "GDCore/Project/Project.h"
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#include "GDCore/Project/ExternalEvents.h"
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#include "GDCore/IDE/DependenciesAnalyzer.h"
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using namespace std;
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namespace gd {
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namespace {
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/**
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* \brief Go through the nodes to search for identifier occurrences.
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*
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* \see gd::ExpressionParser2
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*/
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class GD_CORE_API IdentifierFinderExpressionNodeWorker
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: public ExpressionParser2NodeWorker {
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public:
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IdentifierFinderExpressionNodeWorker(std::set<gd::String>& results_,
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const gd::Platform &platform_,
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const gd::ProjectScopedContainers &projectScopedContainers_,
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const gd::String& identifierType_,
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const gd::String& objectName_ = "")
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: results(results_),
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platform(platform_),
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projectScopedContainers(projectScopedContainers_),
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identifierType(identifierType_),
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objectName(objectName_){};
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virtual ~IdentifierFinderExpressionNodeWorker(){};
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protected:
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void OnVisitSubExpressionNode(SubExpressionNode& node) override {
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node.expression->Visit(*this);
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}
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void OnVisitOperatorNode(OperatorNode& node) override {
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node.leftHandSide->Visit(*this);
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node.rightHandSide->Visit(*this);
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}
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void OnVisitUnaryOperatorNode(UnaryOperatorNode& node) override {
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node.factor->Visit(*this);
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}
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void OnVisitNumberNode(NumberNode& node) override {}
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void OnVisitTextNode(TextNode& node) override {}
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void OnVisitVariableNode(VariableNode& node) override {
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if (node.child) node.child->Visit(*this);
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}
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void OnVisitVariableAccessorNode(VariableAccessorNode& node) override {
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if (node.child) node.child->Visit(*this);
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}
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void OnVisitVariableBracketAccessorNode(
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VariableBracketAccessorNode& node) override {
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node.expression->Visit(*this);
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if (node.child) node.child->Visit(*this);
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}
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void OnVisitIdentifierNode(IdentifierNode& node) override {}
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void OnVisitObjectFunctionNameNode(ObjectFunctionNameNode& node) override {}
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void OnVisitFunctionCallNode(FunctionCallNode& node) override {
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bool considerFunction = objectName.empty() || node.objectName == objectName;
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const bool isObjectFunction = !node.objectName.empty();
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const gd::ExpressionMetadata &metadata = isObjectFunction ?
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MetadataProvider::GetObjectAnyExpressionMetadata(
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platform,
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projectScopedContainers.GetObjectsContainersList().GetTypeOfObject(objectName),
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node.functionName):
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MetadataProvider::GetAnyExpressionMetadata(platform, node.functionName);
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if (gd::MetadataProvider::IsBadExpressionMetadata(metadata)) {
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return;
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}
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size_t parameterIndex = 0;
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for (size_t metadataIndex = (isObjectFunction ? 1 : 0);
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metadataIndex < metadata.GetParameters().GetParametersCount() &&
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parameterIndex < node.parameters.size();
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++metadataIndex) {
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auto& parameterMetadata = metadata.GetParameters().GetParameter(metadataIndex);
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if (parameterMetadata.IsCodeOnly()) {
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continue;
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}
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auto& parameterNode = node.parameters[parameterIndex];
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++parameterIndex;
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if (considerFunction && parameterMetadata.GetType() == "identifier"
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&& parameterMetadata.GetExtraInfo() == identifierType) {
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// Store the value of the parameter
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results.insert(
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gd::ExpressionParser2NodePrinter::PrintNode(*parameterNode));
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} else {
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parameterNode->Visit(*this);
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}
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}
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}
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void OnVisitEmptyNode(EmptyNode& node) override {}
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private:
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const gd::Platform &platform;
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const gd::ProjectScopedContainers &projectScopedContainers;
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std::set<gd::String>& results; ///< Reference to the std::set where argument
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///< values must be stored.
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gd::String identifierType; ///< The type of the parameters to be searched for.
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gd::String objectName; ///< If not empty, parameters will be taken into
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///< account only if related to this object.
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};
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/**
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* \brief Go through the events to search for identifier occurrences.
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*/
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class GD_CORE_API IdentifierFinderEventWorker
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: public ReadOnlyArbitraryEventsWorkerWithContext {
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public:
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IdentifierFinderEventWorker(std::set<gd::String>& results_,
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const gd::Platform &platform_,
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const gd::String& identifierType_,
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const gd::String& objectName_ = "")
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: results(results_),
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platform(platform_),
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identifierType(identifierType_),
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objectName(objectName_){};
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virtual ~IdentifierFinderEventWorker(){};
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void DoVisitInstructionList(const gd::InstructionsList& instructions,
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bool areConditions) override {
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for (std::size_t aId = 0; aId < instructions.size(); ++aId) {
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auto& instruction = instructions[aId];
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gd::String lastObjectParameter = "";
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const gd::InstructionMetadata& instrInfos =
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areConditions ? MetadataProvider::GetConditionMetadata(
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platform, instruction.GetType())
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: MetadataProvider::GetActionMetadata(
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platform, instruction.GetType());
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for (std::size_t pNb = 0; pNb < instrInfos.parameters.GetParametersCount(); ++pNb) {
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// The parameter has the searched type...
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if (instrInfos.parameters.GetParameter(pNb).GetType() == "identifier"
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&& instrInfos.parameters.GetParameter(pNb).GetExtraInfo() == identifierType) {
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//...remember the value of the parameter.
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if (objectName.empty() || lastObjectParameter == objectName) {
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results.insert(instruction.GetParameter(pNb).GetPlainString());
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}
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}
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// Search in expressions
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else if (ParameterMetadata::IsExpression(
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"number", instrInfos.parameters.GetParameter(pNb).GetType()) ||
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ParameterMetadata::IsExpression(
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"string", instrInfos.parameters.GetParameter(pNb).GetType())) {
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auto node = instruction.GetParameter(pNb).GetRootNode();
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IdentifierFinderExpressionNodeWorker searcher(
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results,
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platform,
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GetProjectScopedContainers(),
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identifierType,
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objectName);
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node->Visit(searcher);
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}
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// Remember the value of the last "object" parameter.
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else if (gd::ParameterMetadata::IsObject(
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instrInfos.parameters.GetParameter(pNb).GetType())) {
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lastObjectParameter =
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instruction.GetParameter(pNb).GetPlainString();
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}
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}
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}
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};
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private:
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const gd::Platform &platform;
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std::set<gd::String>& results; ///< Reference to the std::set where argument
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///< values must be stored.
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gd::String identifierType; ///< The type of the parameters to be searched for.
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gd::String objectName; ///< If not empty, parameters will be taken into
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///< account only if related to this object.
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};
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} // namespace
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std::set<gd::String> EventsIdentifiersFinder::FindAllIdentifierExpressions(
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const gd::Platform& platform,
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const gd::Project& project,
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const gd::Layout& layout,
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const gd::String& identifierType,
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const gd::String& contextObjectName) {
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std::set<gd::String> results;
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const bool isObjectIdentifier = identifierType.find("object") == 0;
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// The object from the context is only relevant for object identifiers.
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auto& actualObjectName = isObjectIdentifier ? contextObjectName : "";
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FindArgumentsInEventsAndDependencies(
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results,
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platform,
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project,
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layout,
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identifierType,
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actualObjectName);
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return results;
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}
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void EventsIdentifiersFinder::FindArgumentsInEventsAndDependencies(
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std::set<gd::String>& results,
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const gd::Platform& platform,
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const gd::Project& project,
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const gd::Layout& layout,
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const gd::String& identifierType,
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const gd::String& objectName) {
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IdentifierFinderEventWorker eventWorker(results,
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platform,
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identifierType,
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objectName);
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eventWorker.Launch(layout.GetEvents(),
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gd::ProjectScopedContainers::MakeNewProjectScopedContainersForProjectAndLayout(project, layout));
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DependenciesAnalyzer dependenciesAnalyzer(project, layout);
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dependenciesAnalyzer.Analyze();
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for (const gd::String& externalEventName : dependenciesAnalyzer.GetExternalEventsDependencies()) {
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const gd::ExternalEvents& externalEvents = project.GetExternalEvents(externalEventName);
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IdentifierFinderEventWorker eventWorker(results,
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platform,
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identifierType,
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objectName);
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eventWorker.Launch(externalEvents.GetEvents(),
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gd::ProjectScopedContainers::MakeNewProjectScopedContainersForProjectAndLayout(project, layout));
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}
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for (const gd::String& sceneName : dependenciesAnalyzer.GetScenesDependencies()) {
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const gd::Layout& dependencyLayout = project.GetLayout(sceneName);
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IdentifierFinderEventWorker eventWorker(results,
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platform,
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identifierType,
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objectName);
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eventWorker.Launch(dependencyLayout.GetEvents(),
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gd::ProjectScopedContainers::MakeNewProjectScopedContainersForProjectAndLayout(project, dependencyLayout));
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}
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}
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} // namespace gd
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