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

com.google.gwt.dev.js.ast.JsBlock
Represents a JavaScript block statement.

          onlyStmtToExecute = elseStmt;
          removed = thenStmt;
        } else {
          return;
        }
        JsBlock block = new JsBlock();
        block.getStatements().add(expr.makeStmt());


        if (onlyStmtToExecute != null) {
          // We'll see this if the expression is always false and no else
          block.getStatements().add(onlyStmtToExecute);
        }


        JsStatement decls = ensureDeclarations(removed);
        if (decls != null) {
          block.getStatements().add(decls);
        }
        ctx.replaceMe(accept(block));
      } else if (isEmpty(thenStmt) && isEmpty(elseStmt)) {
        ctx.replaceMe(expr.makeStmt());
      }

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      if (expr instanceof CanBooleanEval) {
        CanBooleanEval cond = (CanBooleanEval) expr;


        // If false, replace with condition.
        if (cond.isBooleanFalse()) {
          JsBlock block = new JsBlock();
          block.getStatements().add(expr.makeStmt());
          JsStatement decls = ensureDeclarations(x.getBody());
          if (decls != null) {
            block.getStatements().add(decls);
          }
          ctx.replaceMe(accept(block));
        }
      }
    }

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      if (stmts.isEmpty()) {
        return null;
      } else if (stmts.size() == 1) {
        return stmts.get(0);
      } else {
        JsBlock jsBlock = new JsBlock();
        jsBlock.getStatements().addAll(stmts);
        return jsBlock;
      }
    }

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           * This indicates that the function was attached to a clause of a
           * control function and not into an existing block. We'll replace the
           * single JsExprStmt with a JsBlock that contains all of the
           * statements.
           */
          JsBlock b = new JsBlock();
          b.getStatements().addAll(statements);
          ctx.replaceMe(b);
          return;


        } else {
          // Insert the new statements into the original context

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           * This indicates that the function was attached to a clause of a
           * control function and not into an existing block. We'll replace the
           * single JsExprStmt with a JsBlock that contains all of the
           * statements.
           */
          JsBlock b = new JsBlock(x.getSourceInfo());
          b.getStatements().addAll(statements);
          ctx.replaceMe(b);
          return;


        } else {
          // Insert the new statements into the original context

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    public void endVisit(JsFunction x, JsContext ctx) {
      if (!functionStack.pop().equals(x)) {
        throw new InternalCompilerException("Unexpected function popped");
      }


      JsBlock body = x.getBody();
      List<JsName> newLocalVariables = newLocalVariableStack.pop();


      addVars(x, body, newLocalVariables);
    }

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     * top-level of the program.
     */
    @Override
    public boolean visit(JsProgram x, JsContext ctx) {
      programFunction = new JsFunction(x.getSourceInfo(), x.getScope());
      programFunction.setBody(new JsBlock(x.getSourceInfo()));
      functionStack.push(programFunction);
      newLocalVariableStack.push(Lists.<JsName>newArrayList());
      return true;
    }

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    _spaceOpt();
    accept(x.getTryBlock());


    acceptList(x.getCatches());


    JsBlock finallyBlock = x.getFinallyBlock();
    if (finallyBlock != null) {
      _spaceOpt();
      _finally();
      _spaceOpt();
      accept(finallyBlock);

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          if (ctx.canInsert()) {
            // exitingEarly = true; return;
            ctx.insertBefore(asg.makeStmt());
          } else {
            // {exitingEarly = true; return;}
            JsBlock block = new JsBlock(x.getSourceInfo());
            block.getStatements().add(asg.makeStmt());
            block.getStatements().add(x);
            ctx.replaceMe(block);
          }
        } else {
          // return (exitingEarly = true, expr);
          JsBinaryOperation op = new JsBinaryOperation(x.getSourceInfo(),

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      /*
       * Only the outermost finally block needs special treatment; try/finally
       * block within try blocks do not receive special treatment.
       */
      JsBlock finallyBlock = x.getFinallyBlock();
      if (finallyBlock != null && outerFinallyBlock == null) {
        outerFinallyBlock = finallyBlock;


        // Manual traversal
        accept(x.getTryBlock());

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