Examples of com.google.gwt.dev.js.ast.JsFunction

com.google.gwt.dev.js.ast.JsFunction
Represents a JavaScript function expression.

      toFnName = getScope().declareName(fromFnName);
    }


    // Create it, and set the params.
    //
    JsFunction toFn = new JsFunction(getScope(), toFnName);


    // Creating a function also creates a new scope, which we push onto
    // the scope stack.
    //
    pushScope(toFn.getScope());


    while (fromParamNode != null) {
      String fromParamName = fromParamNode.getString();
      // should this be unique? I think not since you can have dup args.
      JsName paramName = toFn.getScope().declareName(fromParamName);
      toFn.getParameters().add(new JsParameter(paramName));
      fromParamNode = fromParamNode.getNext();
    }


    // Map the function's body.
    //
    JsBlock toBody = mapBlock(fromBodyNode);
    toFn.setBody(toBody);


    // Pop the new function's scope off of the scope stack.
    //
    popScope();

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     * try/catch.
     */
    String jsTry = "try ";
    String jsCatch = " catch (e) {\n  __static[\"@" + Jsni.JAVASCRIPTHOST_NAME
        + "::exceptionCaught(Ljava/lang/Object;)\"](e);\n" + "}\n";
    JsFunction func = jsniMethod.function(logger);
    if (func == null) {
      return null;
    }
    return jsTry + generateJavaScriptForHostedMode(func.getBody()) + jsCatch;
  }

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        String mangleName = mangleNameForGlobal(x);
        globalName = topScope.declareName(mangleName, name);
      }
      names.put(x, globalName);


      JsFunction jsFunction;
      if (x.isNative()) {
        // set the global name of the JSNI peer
        JsniMethodBody body = (JsniMethodBody) x.getBody();
        jsFunction = body.getFunc();
        jsFunction.setName(globalName);
      } else {
        // create a new peer JsFunction
        jsFunction = new JsFunction(topScope, globalName, true);
        methodBodyMap.put(x.getBody(), jsFunction);
      }
      push(jsFunction.getScope());
      return true;
    }

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      List<JsFunction> jsFuncs = popList(x.methods.size()); // methods
      List<JsNode> jsFields = popList(x.fields.size()); // fields


      if (typeOracle.hasClinit(x)) {
        JsFunction superClinit = clinitMap.get(x.extnds);
        JsFunction myClinit = jsFuncs.get(0);
        handleClinit(myClinit, superClinit);
        clinitMap.put(x, myClinit);
      } else {
        jsFuncs.set(0, null);
      }


      List<JsStatement> globalStmts = jsProgram.getGlobalBlock().getStatements();


      // declare all methods into the global scope
      for (int i = 0; i < jsFuncs.size(); ++i) {
        JsFunction func = jsFuncs.get(i);
        if (func != null) {
          globalStmts.add(func.makeStmt());
        }
      }


      if (typeOracle.isInstantiatedType(x) && !program.isJavaScriptObject(x)) {
        generateClassSetup(x, globalStmts);

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      List<JsFunction> jsFuncs = popList(x.methods.size()); // methods
      List<JsVar> jsFields = popList(x.fields.size()); // fields
      List<JsStatement> globalStmts = jsProgram.getGlobalBlock().getStatements();


      if (typeOracle.hasClinit(x)) {
        JsFunction clinitFunc = jsFuncs.get(0);
        handleClinit(clinitFunc, null);
        globalStmts.add(clinitFunc.makeStmt());
      }


      // setup fields
      JsVars vars = new JsVars();
      for (int i = 0; i < jsFields.size(); ++i) {

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      if (x.isAbstract()) {
        push(null);
        return;
      }


      JsFunction jsFunc = (JsFunction) pop(); // body
      List<JsParameter> params = popList(x.params.size()); // params


      if (!x.isNative()) {
        // Setup params on the generated function. A native method already got
        // its jsParams set in BuildTypeMap.
        // TODO: Do we really need to do that in BuildTypeMap?
        List<JsParameter> jsParams = jsFunc.getParameters();
        for (int i = 0; i < params.size(); ++i) {
          JsParameter param = params.get(i);
          jsParams.add(param);
        }
      }


      JsInvocation jsInvocation = maybeCreateClinitCall(x);
      if (jsInvocation != null) {
        jsFunc.getBody().getStatements().add(0, jsInvocation.makeStmt());
      }


      if (x.isTrace()) {
        jsFunc.setTrace();
      }


      push(jsFunc);
      currentMethod = null;
    }

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    public void endVisit(JMethodBody x, Context ctx) {


      JsBlock body = (JsBlock) pop();
      List<JsNameRef> locals = popList(x.locals.size()); // locals


      JsFunction jsFunc = methodBodyMap.get(x);
      jsFunc.setBody(body); // body


      /*
       * Emit a statement to declare the method's complete set of local
       * variables. JavaScript doesn't have the same concept of lexical scoping
       * as Java, so it's okay to just predeclare all local vars at the top of
       * the function, which saves us having to use the "var" keyword over and
       * over.
       * 
       * Note: it's fine to use the same JS ident to represent two different
       * Java locals of the same name since they could never conflict with each
       * other in Java. We use the alreadySeen set to make sure we don't declare
       * the same-named local var twice.
       */
      JsVars vars = new JsVars();
      Set<String> alreadySeen = new HashSet<String>();
      for (int i = 0; i < locals.size(); ++i) {
        JsName name = names.get(x.locals.get(i));
        String ident = name.getIdent();
        if (!alreadySeen.contains(ident)) {
          alreadySeen.add(ident);
          vars.add(new JsVar(name));
        }
      }


      if (!vars.isEmpty()) {
        jsFunc.getBody().getStatements().add(0, vars);
      }


      push(jsFunc);
    }

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      // types don't push


      // Generate entry methods
      List<JsFunction> entryFuncs = popList(x.entryMethods.size()); // entryMethods
      for (int i = 0; i < entryFuncs.size(); ++i) {
        JsFunction func = entryFuncs.get(i);
        if (func != null) {
          globalStmts.add(func.makeStmt());
        }
      }


      generateGwtOnLoad(entryFuncs, globalStmts);
      generateNullFunc(globalStmts);

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      return true;
    }


    @Override
    public boolean visit(JsniMethodBody x, Context ctx) {
      JsFunction jsFunc = x.getFunc();


      // replace all JSNI idents with a real JsName now that we know it
      new JsModVisitor() {


        @Override

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       * }
       * </pre>
       */
      JsName gwtOnLoadName = topScope.declareName("gwtOnLoad");
      gwtOnLoadName.setObfuscatable(false);
      JsFunction gwtOnLoad = new JsFunction(topScope, gwtOnLoadName, true);
      globalStmts.add(gwtOnLoad.makeStmt());
      JsBlock body = new JsBlock();
      gwtOnLoad.setBody(body);
      JsScope fnScope = gwtOnLoad.getScope();
      List<JsParameter> params = gwtOnLoad.getParameters();
      JsName errFn = fnScope.declareName("errFn");
      JsName modName = fnScope.declareName("modName");
      JsName modBase = fnScope.declareName("modBase");
      params.add(new JsParameter(errFn));
      params.add(new JsParameter(modName));
      params.add(new JsParameter(modBase));
      JsExpression asg = createAssignment(
          topScope.findExistingUnobfuscatableName("$moduleName").makeRef(),
          modName.makeRef());
      body.getStatements().add(asg.makeStmt());
      asg = createAssignment(topScope.findExistingUnobfuscatableName(
          "$moduleBase").makeRef(), modBase.makeRef());
      body.getStatements().add(asg.makeStmt());
      JsIf jsIf = new JsIf();
      body.getStatements().add(jsIf);
      jsIf.setIfExpr(errFn.makeRef());
      JsTry jsTry = new JsTry();
      jsIf.setThenStmt(jsTry);
      JsBlock callBlock = new JsBlock();
      jsIf.setElseStmt(callBlock);
      jsTry.setTryBlock(callBlock);
      for (int i = 0; i < entryFuncs.size(); ++i) {
        JsFunction func = entryFuncs.get(i);
        if (func != null) {
          JsInvocation call = new JsInvocation();
          call.setQualifier(func.getName().makeRef());
          callBlock.getStatements().add(call.makeStmt());
        }
      }
      JsCatch jsCatch = new JsCatch(fnScope, "e");
      jsTry.getCatches().add(jsCatch);

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