mirror of https://github.com/vitalif/openscad
230 lines
6.5 KiB
C++
230 lines
6.5 KiB
C++
/*
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* OpenSCAD (www.openscad.org)
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* Copyright (C) 2009-2011 Clifford Wolf <clifford@clifford.at> and
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* Marius Kintel <marius@kintel.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* As a special exception, you have permission to link this program
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* with the CGAL library and distribute executables, as long as you
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* follow the requirements of the GNU GPL in regard to all of the
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* software in the executable aside from CGAL.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "module.h"
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#include "ModuleCache.h"
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#include "node.h"
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#include "modcontext.h"
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#include "evalcontext.h"
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#include "expression.h"
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#include "function.h"
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#include "printutils.h"
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#include <boost/filesystem.hpp>
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namespace fs = boost::filesystem;
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#include "boosty.h"
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#include <boost/foreach.hpp>
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#include <sstream>
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#include <sys/stat.h>
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AbstractModule::~AbstractModule()
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{
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}
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AbstractNode *AbstractModule::instantiate(const Context *ctx, const ModuleInstantiation *inst, const EvalContext *evalctx) const
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{
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AbstractNode *node = new AbstractNode(inst);
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node->children = inst->instantiateChildren(evalctx);
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return node;
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}
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std::string AbstractModule::dump(const std::string &indent, const std::string &name) const
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{
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std::stringstream dump;
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dump << indent << "abstract module " << name << "();\n";
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return dump.str();
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}
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ModuleInstantiation::~ModuleInstantiation()
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{
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BOOST_FOREACH(const Assignment &arg, this->arguments) delete arg.second;
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}
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IfElseModuleInstantiation::~IfElseModuleInstantiation()
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{
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}
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/*!
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Returns the absolute path to the given filename, unless it's empty.
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*/
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std::string ModuleInstantiation::getAbsolutePath(const std::string &filename) const
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{
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if (!filename.empty() && !boosty::is_absolute(fs::path(filename))) {
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return boosty::absolute(fs::path(this->modpath) / filename).string();
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}
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else {
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return filename;
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}
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}
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std::string ModuleInstantiation::dump(const std::string &indent) const
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{
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std::stringstream dump;
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dump << indent;
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dump << modname + "(";
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for (size_t i=0; i < this->arguments.size(); i++) {
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const Assignment &arg = this->arguments[i];
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if (i > 0) dump << ", ";
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if (!arg.first.empty()) dump << arg.first << " = ";
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dump << *arg.second;
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}
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if (scope.numElements() == 0) {
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dump << ");\n";
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} else if (scope.numElements() == 1) {
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dump << ")\n";
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dump << scope.dump(indent + "\t");
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} else {
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dump << ") {\n";
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scope.dump(indent + "\t");
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dump << indent << "}\n";
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}
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return dump.str();
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}
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AbstractNode *ModuleInstantiation::evaluate(const Context *ctx) const
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{
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EvalContext c(ctx, this->arguments, &this->scope);
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#if 0 && DEBUG
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PRINT("New eval ctx:");
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c.dump(NULL, this);
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#endif
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AbstractNode *node = ctx->instantiate_module(*this, &c); // Passes c as evalctx
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return node;
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}
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std::vector<AbstractNode*> ModuleInstantiation::instantiateChildren(const Context *evalctx) const
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{
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return this->scope.instantiateChildren(evalctx);
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}
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std::vector<AbstractNode*> IfElseModuleInstantiation::instantiateElseChildren(const Context *evalctx) const
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{
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return this->else_scope.instantiateChildren(evalctx);
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}
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Module::~Module()
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{
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}
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AbstractNode *Module::instantiate(const Context *ctx, const ModuleInstantiation *inst, const EvalContext *evalctx) const
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{
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ModuleContext c(ctx, evalctx);
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c.initializeModule(*this);
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c.set_variable("$children", Value(double(inst->scope.children.size())));
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// FIXME: Set document path to the path of the module
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#if 0 && DEBUG
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c.dump(this, inst);
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#endif
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AbstractNode *node = new AbstractNode(inst);
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std::vector<AbstractNode *> instantiatednodes = this->scope.instantiateChildren(&c);
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node->children.insert(node->children.end(), instantiatednodes.begin(), instantiatednodes.end());
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return node;
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}
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std::string Module::dump(const std::string &indent, const std::string &name) const
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{
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std::stringstream dump;
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std::string tab;
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if (!name.empty()) {
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dump << indent << "module " << name << "(";
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for (size_t i=0; i < this->definition_arguments.size(); i++) {
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const Assignment &arg = this->definition_arguments[i];
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if (i > 0) dump << ", ";
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dump << arg.first;
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if (arg.second) dump << " = " << *arg.second;
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}
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dump << ") {\n";
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tab = "\t";
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}
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dump << scope.dump(indent + tab);
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if (!name.empty()) {
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dump << indent << "}\n";
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}
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return dump.str();
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}
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void FileModule::registerInclude(const std::string &filename)
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{
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struct stat st;
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memset(&st, 0, sizeof(struct stat));
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stat(filename.c_str(), &st);
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this->includes[filename] = st.st_mtime;
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}
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/*!
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Check if any dependencies have been modified and recompile them.
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Returns true if anything was recompiled.
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*/
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bool FileModule::handleDependencies()
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{
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if (this->is_handling_dependencies) return false;
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this->is_handling_dependencies = true;
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bool changed = false;
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// Iterating manually since we want to modify the container while iterating
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FileModule::ModuleContainer::iterator iter = this->usedlibs.begin();
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while (iter != this->usedlibs.end()) {
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FileModule::ModuleContainer::iterator curr = iter++;
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FileModule *oldmodule = curr->second;
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curr->second = ModuleCache::instance()->evaluate(curr->first);
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if (curr->second != oldmodule) {
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changed = true;
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#ifdef DEBUG
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PRINTB_NOCACHE(" %s: %p", curr->first % curr->second);
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#endif
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}
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if (!curr->second) {
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PRINTB_NOCACHE("WARNING: Failed to compile library '%s'.", curr->first);
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this->usedlibs.erase(curr);
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}
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}
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this->is_handling_dependencies = false;
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return changed;
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}
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AbstractNode *FileModule::instantiate(const Context *ctx, const ModuleInstantiation *inst, const EvalContext *evalctx) const
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{
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assert(evalctx == NULL);
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FileContext c(*this, ctx);
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c.initializeModule(*this);
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// FIXME: Set document path to the path of the module
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#if 0 && DEBUG
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c.dump(this, inst);
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#endif
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AbstractNode *node = new AbstractNode(inst);
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std::vector<AbstractNode *> instantiatednodes = this->scope.instantiateChildren(ctx, &c);
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node->children.insert(node->children.end(), instantiatednodes.begin(), instantiatednodes.end());
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return node;
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}
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