Examples of com.google.gwt.dev.cfg.PropertyPermutations

com.google.gwt.dev.cfg.PropertyPermutations
Generates all possible permutations of properties in a module. Each permutation consists of the list of active property values associated with that permutation. That list of property values is represented as an array of Strings corresponding to the list of properties returned by {@link Properties#getBindingProperties()}.

      prop.addCollapsedValues("true", "false");
    }


    // Permutations and their values are in stable alphabetical order.
    //
    PropertyPermutations perms = new PropertyPermutations(md.getProperties(),
        md.getActiveLinkerNames());


    List<PropertyPermutations> collapsed = perms.collapseProperties();
    assertEquals("size", 1, collapsed.size());
    perms = collapsed.get(0);


    String[] perm;
    Iterator<String[]> iter = perms.iterator();


    assertTrue(iter.hasNext());
    perm = iter.next();
    assertEquals("false", perm[0]);

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      prop.addDefinedValue(prop.getRootCondition(), "true");
    }


    // String[]s and their values are in stable alphabetical order.
    //
    PropertyPermutations perms = new PropertyPermutations(md.getProperties(),
        md.getActiveLinkerNames());
    String[] perm;
    Iterator<String[]> iter = perms.iterator();


    assertTrue(iter.hasNext());
    perm = iter.next();
    assertEquals("false", perm[0]);
    assertEquals("ie6", perm[1]);

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      prop.addDefinedValue(prop.getRootCondition(), "true");
    }


    // String[]s and their values are in stable alphabetical order.
    //
    PropertyPermutations perms = new PropertyPermutations(md.getProperties(),
        md.getActiveLinkerNames());


    List<PropertyPermutations> collapsed = perms.collapseProperties();
    assertEquals("size", 2, collapsed.size());


    Iterator<String[]> it = collapsed.get(0).iterator();
    assertEquals(Arrays.asList("false", "ie6"), Arrays.asList(it.next()));
    assertEquals(Arrays.asList("false", "moz"), Arrays.asList(it.next()));

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    validateTwoDimensionPerm(props, md.getActiveLinkerNames());
  }


  private void validateTwoDimensionPerm(Properties props, Set<String> activeLinkerNames) {
    PropertyPermutations perms = new PropertyPermutations(props, activeLinkerNames);


    // Order is alphabetical in dependency order
    Iterator<String[]> iter = perms.iterator();
    checkNextPermutation(iter, "ie6", "false");
    checkNextPermutation(iter, "ie6", "true");
    checkNextPermutation(iter, "ie8", "false");
    checkNextPermutation(iter, "ie8", "true");
    checkNextPermutation(iter, "moz", "false");

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      }


      ArtifactSet generatedArtifacts = new ArtifactSet();
      DistillerRebindPermutationOracle rpo = new DistillerRebindPermutationOracle(
          module, compilationState, generatedArtifacts,
          new PropertyPermutations(module.getProperties()), genDir,
          generatorResourcesDir);


      WebModeCompilerFrontEnd frontEnd = new WebModeCompilerFrontEnd(
          compilationState, rpo);
      PerfLogger.start("Precompile");

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      }


      ArtifactSet generatorArtifacts = new ArtifactSet();
      DistillerRebindPermutationOracle rpo = new DistillerRebindPermutationOracle(
          module, compilationState, generatorArtifacts,
          new PropertyPermutations(module.getProperties()), genDir,
          generatorResourcesDir);


      WebModeCompilerFrontEnd frontEnd = new WebModeCompilerFrontEnd(
          compilationState, rpo);
      JavaToJavaScriptCompiler.precompile(logger, frontEnd, declEntryPts,

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    precompilationOptions.setGenDir(null);
    compilerContext = compilerContextBuilder.options(precompilationOptions).build();


    ModuleDef module = ModuleDefLoader.loadFromClassPath(logger, compilerContext, moduleName);
    compilerContext = compilerContextBuilder.module(module).build();
    PropertyPermutations allPermutations = new PropertyPermutations(
        module.getProperties(), module.getActiveLinkerNames());
    List<PropertyPermutations> collapsedPermutations = allPermutations.collapseProperties();
    int[] perms = options.getPermsToCompile();
    if (perms == null) {
      perms = new int[collapsedPermutations.size()];
      for (int i = 0; i < perms.length; ++i) {
        perms[i] = i;
      }
    }


    logger = logger.branch(TreeLogger.INFO, "Compiling " + perms.length
        + " permutation" + (perms.length > 1 ? "s" : ""));
    for (int permId : perms) {
      /*
       * TODO(spoon,scottb): move Precompile out of the loop to run only once
       * per shard. Then figure out a way to avoid copying the generated
       * artifacts into every perm result on a shard.
       */
      PropertyPermutations onePerm = collapsedPermutations.get(permId);


      Precompilation precompilation =
          Precompile.precompile(logger, compilerContext, permId, onePerm);
      if (precompilation == null) {
        return false;

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   * @return the precompilation
   * @throws UnableToCompleteException
   */
  public static Precompilation precompile(TreeLogger logger, CompilerContext compilerContext)
      throws UnableToCompleteException {
    PropertyPermutations allPermutations = new PropertyPermutations(
        compilerContext.getModule().getProperties(),
        compilerContext.getModule().getActiveLinkerNames());
    if (compilerContext.getOptions().isIncrementalCompileEnabled() && allPermutations.size() > 1) {
      logger.log(TreeLogger.ERROR,
          "Current binding properties are expanding to more than one permutation "
          + "but per-file compilation requires that each compile operate on only one permutation.");
      throw new UnableToCompleteException();
    }

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      }


      ArtifactSet generatorArtifacts = new ArtifactSet();
      DistillerRebindPermutationOracle rpo = new DistillerRebindPermutationOracle(
          compilerContext, compilationState, generatorArtifacts,
          new PropertyPermutations(module.getProperties(), module.getActiveLinkerNames()));
      // Allow GC later.
      compilationState = null;
      // Never optimize on a validation run.
      jjsOptions.setOptimizePrecompile(false);
      getCompiler(module).precompile(

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  /**
   * Create a list of all possible permutations configured for this module after
   * collapsing soft permutations.
   */
  static List<PropertyPermutations> getCollapsedPermutations(ModuleDef module) {
    PropertyPermutations allPermutations =
        new PropertyPermutations(module.getProperties(), module.getActiveLinkerNames());
    List<PropertyPermutations> collapsedPermutations = allPermutations.collapseProperties();
    return collapsedPermutations;
  }

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Related Classes of com.google.gwt.dev.cfg.PropertyPermutations

com.google.gwt.core.ext.PropertyOracle

com.google.gwt.dev.AnalyzeModule

com.google.gwt.dev.CompilePerms

com.google.gwt.dev.GWTCompiler

com.google.gwt.dev.Link

com.google.gwt.dev.Precompile

com.google.gwt.dev.PrecompileOnePerm

com.google.gwt.dev.util.CollapsedPropertyKey

com.google.gwt.dev.util.test.PropertyPermutationsTest

com.googlecode.gwt.test.internal.handlers.GeneratorCreateHandler

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