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

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

        JsNameRef toStringRef = new JsNameRef(sourceInfo, polymorphicNames.get(toStringMeth));
        toStringRef.setQualifier(new JsThisRef(sourceInfo));
        call.setQualifier(toStringRef);
        JsReturn jsReturn = new JsReturn(sourceInfo, call);
        JsFunction rhs = new JsFunction(sourceInfo, topScope);
        JsBlock body = new JsBlock(sourceInfo);
        body.getStatements().add(jsReturn);
        rhs.setBody(body);


        // asg
        JsExpression asg = createAssignment(lhs, rhs);
        JsExprStmt stmt = asg.makeStmt();

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        while (statements.size() > MAX_BLOCK_SIZE && i.hasNext()) {
          JsStatement current = i.next();


          if (statementsInNewBlock == null) {
            // Replace the current statement with a new block
            JsBlock newBlock = new JsBlock();
            statementsInNewBlock = newBlock.getStatements();
            i.set(newBlock);
          } else {
            /*
             * There's an open replacement block, remove the statement from its
             * current block.

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      for (int i = 0; i < stmts.size(); i++) {
        JsStatement stmt = stmts.get(i);


        if (stmt instanceof JsBlock) {
          // Promote a sub-block's children to the current block.
          JsBlock block = (JsBlock) stmt;
          stmts.remove(i);
          stmts.addAll(i, block.getStatements());
          i--;
          didChange = true;
          continue;
        }

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        if (cond.isBooleanFalse()) {
          // Unless it contains break/continue statements
          FindBreakContinueStatementsVisitor visitor = new FindBreakContinueStatementsVisitor();
          visitor.accept(x.getBody());
          if (!visitor.hasBreakContinueStatements()) {
            JsBlock block = new JsBlock();
            block.getStatements().add(x.getBody());
            block.getStatements().add(expr.makeStmt());
            ctx.replaceMe(accept(block));
          }
        }
      }
    }

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


        // If false, replace with initializers and condition.
        if (cond.isBooleanFalse()) {
          JsBlock block = new JsBlock();
          if (x.getInitExpr() != null) {
            block.getStatements().add(x.getInitExpr().makeStmt());
          }
          if (x.getInitVars() != null) {
            block.getStatements().add(x.getInitVars());
          }
          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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          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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  private JsNode<?> map(Node node) throws JsParserException {


    switch (node.getType()) {
      case TokenStream.SCRIPT: {
        JsBlock block = new JsBlock();
        mapStatements(block.getStatements(), node);
        return block;
      }


      case TokenStream.DEBUGGER:
        return mapDebuggerStatement();

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    return new JsBinaryOperation(op, to1, to2);
  }


  private JsBlock mapBlock(Node nodeStmts) throws JsParserException {
    JsBlock block = new JsBlock();
    mapStatements(block.getStatements(), nodeStmts);
    return block;
  }

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