bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/environment/EnvironmentFactoryImpl.java

   1 package org.simantics.scl.compiler.environment;
   2
   3 import java.util.ArrayList;
   4 import java.util.Arrays;
   5
   6 import org.simantics.scl.compiler.module.ConcreteModule;
   7 import org.simantics.scl.compiler.module.ImportDeclaration;
   8 import org.simantics.scl.compiler.module.repository.ImportFailureException;
   9 import org.simantics.scl.compiler.module.repository.ModuleRepository;
  10 import org.simantics.scl.compiler.module.repository.UpdateListener;
  11
  12 public class EnvironmentFactoryImpl implements EnvironmentFactory {
  13
  14     private final ModuleRepository environment;
  15     private final ImportDeclaration[] builtinImports;
  16     private final UpdateListener listener;
  17
  18     public EnvironmentFactoryImpl(ModuleRepository environment,
  19             ImportDeclaration[] builtinImports, UpdateListener listener) {
  20         this.environment = environment;
  21         this.builtinImports = builtinImports;
  22         this.listener = listener;
  23     }
  24
  25     @Override
  26     public Environment createEnvironment(ImportDeclaration[] imports) throws ImportFailureException {
  27         ArrayList<ImportDeclaration> acceptedBuiltinImports =
  28                 new ArrayList<ImportDeclaration>(builtinImports.length);
  29         loop: for(ImportDeclaration builtinImport : builtinImports) {
  30             for(ImportDeclaration decl : imports)
  31                 if(decl.moduleName.equals(builtinImport.moduleName) &&
  32                         decl.localName.equals(builtinImport.localName))
  33                     continue loop;
  34             acceptedBuiltinImports.add(builtinImport);
  35         }
  36         ImportDeclaration[] is = Arrays.copyOf(
  37                 acceptedBuiltinImports.toArray(new ImportDeclaration[acceptedBuiltinImports.size()]),
  38                 acceptedBuiltinImports.size() + imports.length);
  39         System.arraycopy(imports, 0, is, acceptedBuiltinImports.size(), imports.length);
  40         return environment.createEnvironment(is, listener);
  41     }
  42
  43     @Override
  44     public void addBuiltinDependencies(ConcreteModule module) {
  45         for(ImportDeclaration decl : builtinImports) {
  46             ImportDeclaration decl2 = new ImportDeclaration(decl.moduleName, null);
  47             module.addDependency(decl2);
  48         }
  49     }
  50
  51 }