Package com.google.gwt.dev.jjs.ast

Examples of com.google.gwt.dev.jjs.ast.JStatement

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         * switch(i) { case 1: a(); b(); break; default: c(); d(); }
         *
         * becomes if (i == 1) { a(); b(); } else { c(); d(); }
         */
        JCaseStatement caseStatement = (JCaseStatement) body.statements.get(0);
        JStatement statement = body.statements.get(1);

        FindBreakContinueStatementsVisitor visitor = new FindBreakContinueStatementsVisitor();
        visitor.accept(statement);
        if (visitor.hasBreakContinueStatements()) {
          // Cannot optimize.
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    /**
     * Process an Statement type node reflectively; must return a JStatement.
     */
    protected JStatement dispProcessStatement(Statement x) {
      JStatement stmt;
      if (x instanceof Expression) {
        JExpression expr = dispProcessExpression((Expression) x);
        if (expr == null) {
          return null;
        }
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        // user code (finally!)
        if (x.statements != null) {
          for (int i = 0, n = x.statements.length; i < n; ++i) {
            Statement origStmt = x.statements[i];
            JStatement jstmt = dispProcessStatement(origStmt);
            if (jstmt != null) {
              statements.add(jstmt);
            }
          }
        }
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    List<JExpressionStatement> processExpressionStatements(
        Statement[] statements) {
      List<JExpressionStatement> jstatements = new ArrayList<JExpressionStatement>();
      if (statements != null) {
        for (int i = 0, n = statements.length; i < n; ++i) {
          JStatement jstmt = dispProcessStatement(statements[i]);
          if (jstmt != null) {
            jstatements.add((JExpressionStatement) jstmt);
          }
        }
      }
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        }

        if (initializer != null) {
          SourceInfo info = makeSourceInfo(declaration);
          // JDeclarationStatement's ctor sets up the field's initializer.
          JStatement decl = new JDeclarationStatement(program, info,
              createVariableRef(info, field), initializer);
          // will either be init or clinit
          currentMethodBody.getStatements().add(decl);
        }
      } catch (Throwable e) {
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        currentMethodScope = x.scope;

        if (x.statements != null) {
          for (int i = 0, n = x.statements.length; i < n; ++i) {
            Statement origStmt = x.statements[i];
            JStatement jstmt = dispProcessStatement(origStmt);
            if (jstmt != null) {
              currentMethodBody.getStatements().add(jstmt);
            }
          }
        }
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      SourceInfo info = makeSourceInfo(x);
      JBlock block = new JBlock(program, info);
      if (x.statements != null) {
        for (int i = 0, n = x.statements.length; i < n; ++i) {
          JStatement jstmt = dispProcessStatement(x.statements[i]);
          if (jstmt != null) {
            block.statements.add(jstmt);
          }
        }
      }
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    }

    JStatement processStatement(DoStatement x) {
      SourceInfo info = makeSourceInfo(x);
      JExpression loopTest = dispProcessExpression(x.condition);
      JStatement loopBody = dispProcessStatement(x.action);
      JDoStatement stmt = new JDoStatement(program, info, loopTest, loopBody);
      return stmt;
    }
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    JStatement processStatement(ForeachStatement x) {
      SourceInfo info = makeSourceInfo(x);

      JBlock body;
      JStatement action = dispProcessStatement(x.action);
      if (action instanceof JBlock) {
        body = (JBlock) action;
      } else {
        body = new JBlock(program, info);
        body.statements.add(action);
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      boolean removeBody = isOptimizedFalse(x.condition);

      List<JStatement> init = processStatements(x.initializations);
      JExpression expr = dispProcessExpression(x.condition);
      List<JExpressionStatement> incr = processExpressionStatements(x.increments);
      JStatement body = removeBody ? null : dispProcessStatement(x.action);
      return new JForStatement(program, info, init, expr, incr, body);
    }
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Related Classes of com.google.gwt.dev.jjs.ast.JStatement

  • com.google.gwt.dev.jjs.impl.CatchBlockNormalizer$CollapseCatchBlocks
  • com.google.gwt.dev.jjs.impl.DeadCodeElimination$DeadCodeVisitor
  • com.google.gwt.dev.jjs.impl.EnumOrdinalizer$ReplaceEnumTypesWithInteger
  • com.google.gwt.dev.jjs.impl.GenerateJavaAST$JavaASTGenerationVisitor
  • com.google.gwt.dev.jjs.impl.GenerateJavaScriptAST$GenerateJavaScriptVisitor
  • com.google.gwt.dev.jjs.impl.GwtAstBuilder$AstVisitor
  • com.google.gwt.dev.jjs.impl.MakeCallsStatic$CreateStaticImplsVisitor
  • com.google.gwt.dev.jjs.impl.MethodInliner$InliningVisitor
  • com.google.gwt.dev.jjs.impl.MethodInliner$ReduceMultiVisitor
  • com.google.gwt.dev.jjs.impl.OptimizerTestBase
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