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

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

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      }

      if (triviallyTrue) {
        // replace with a simple null test
        JNullLiteral nullLit = program.getLiteralNull();
        JBinaryOperation neq = new JBinaryOperation(program, x.getSourceInfo(),
            program.getTypePrimitiveBoolean(), JBinaryOperator.NEQ,
            x.getExpr(), nullLit);
        ctx.replaceMe(neq);
      } else if (triviallyFalse) {
        // replace with a false literal
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     */
    private JExpression processBinaryOperation(SourceInfo info,
        JBinaryOperator op, JType type, Expression arg1, Expression arg2) {
      JExpression exprArg1 = dispProcessExpression(arg1);
      JExpression exprArg2 = dispProcessExpression(arg2);
      JBinaryOperation binaryOperation = new JBinaryOperation(program, info,
          type, op, exprArg1, exprArg2);
      return binaryOperation;
    }
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      if (x.getOp() == JBinaryOperator.ADD) {
        JExpression newLhs = convertCharString(x.getLhs());
        JExpression newRhs = convertCharString(x.getRhs());
        if (newLhs != x.getLhs() || newRhs != x.getRhs()) {
          JBinaryOperation newExpr = new JBinaryOperation(program,
              x.getSourceInfo(), program.getTypeJavaLangString(),
              JBinaryOperator.ADD, newLhs, newRhs);
          ctx.replaceMe(newExpr);
        }
      } else if (x.getOp() == JBinaryOperator.ASG_ADD) {
        JExpression newRhs = convertCharString(x.getRhs());
        if (newRhs != x.getRhs()) {
          JBinaryOperation newExpr = new JBinaryOperation(program,
              x.getSourceInfo(), program.getTypeJavaLangString(),
              JBinaryOperator.ASG_ADD, x.getLhs(), newRhs);
          ctx.replaceMe(newExpr);
        }
      }
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      if (argType instanceof JClassType
          && program.typeOracle.canTriviallyCast((JClassType) argType,
              x.getTestType())) {
        // trivially true if non-null; replace with a null test
        JNullLiteral nullLit = program.getLiteralNull();
        JBinaryOperation eq = new JBinaryOperation(program, x.getSourceInfo(),
            program.getTypePrimitiveBoolean(), JBinaryOperator.NEQ,
            x.getExpr(), nullLit);
        ctx.replaceMe(eq);
      } else {
        JMethod method = program.getSpecialMethod("Cast.instanceOf");
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    JMethodCall availableCall = new JMethodCall(info, null, isStatsAvailableMethod);
    JMethodCall onModuleStartCall = new JMethodCall(info, null, onModuleStartMethod);
    onModuleStartCall.addArg(program.getLiteralString(info, mainClassName));

    JBinaryOperation amp =
        new JBinaryOperation(info, program.getTypePrimitiveBoolean(), JBinaryOperator.AND,
            availableCall, onModuleStartCall);

    return amp.makeStatement();
  }
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        isStatsAvailableMethod);
    JMethodCall onModuleStartCall = new JMethodCall(program, null, null,
        onModuleStartMethod);
    onModuleStartCall.getArgs().add(program.getLiteralString(mainClassName));

    JBinaryOperation amp = new JBinaryOperation(program, null,
        program.getTypePrimitiveBoolean(), JBinaryOperator.AND, availableCall,
        onModuleStartCall);

    return amp.makeStatement();
  }
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          ctx.replaceMe(elseExpr);
        }
      } else if (thenExpr instanceof JBooleanLiteral) {
        if (((JBooleanLiteral) thenExpr).getValue()) {
          // e.g. (cond ? true : else) -> cond || else
          JBinaryOperation binOp = new JBinaryOperation(program,
              x.getSourceInfo(), x.getType(), JBinaryOperator.OR, condExpr,
              elseExpr);
          ctx.replaceMe(binOp);
        } else {
          // e.g. (cond ? false : else) -> !cond && else
          JPrefixOperation notCondExpr = new JPrefixOperation(program,
              condExpr.getSourceInfo(), JUnaryOperator.NOT, condExpr);
          JBinaryOperation binOp = new JBinaryOperation(program,
              x.getSourceInfo(), x.getType(), JBinaryOperator.AND, notCondExpr,
              elseExpr);
          ctx.replaceMe(binOp);
        }
      } else if (elseExpr instanceof JBooleanLiteral) {
        if (((JBooleanLiteral) elseExpr).getValue()) {
          // e.g. (cond ? then : true) -> !cond || then
          JPrefixOperation notCondExpr = new JPrefixOperation(program,
              condExpr.getSourceInfo(), JUnaryOperator.NOT, condExpr);
          JBinaryOperation binOp = new JBinaryOperation(program,
              x.getSourceInfo(), x.getType(), JBinaryOperator.OR, notCondExpr,
              thenExpr);
          ctx.replaceMe(binOp);
        } else {
          // e.g. (cond ? then : false) -> cond && then
          JBinaryOperation binOp = new JBinaryOperation(program,
              x.getSourceInfo(), x.getType(), JBinaryOperator.AND, condExpr,
              thenExpr);
          ctx.replaceMe(binOp);
        }
      } else {
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      }
      if (x.getOp() == JUnaryOperator.NOT) {
        JExpression arg = x.getArg();
        if (arg instanceof JBinaryOperation) {
          // try to invert the binary operator
          JBinaryOperation argOp = (JBinaryOperation) arg;
          JBinaryOperator op = argOp.getOp();
          JBinaryOperator newOp = null;
          if (op == JBinaryOperator.EQ) {
            // e.g. !(x == y) -> x != y
            newOp = JBinaryOperator.NEQ;
          } else if (op == JBinaryOperator.NEQ) {
            // e.g. !(x != y) -> x == y
            newOp = JBinaryOperator.EQ;
          } else if (op == JBinaryOperator.GT) {
            // e.g. !(x > y) -> x <= y
            newOp = JBinaryOperator.LTE;
          } else if (op == JBinaryOperator.LTE) {
            // e.g. !(x <= y) -> x > y
            newOp = JBinaryOperator.GT;
          } else if (op == JBinaryOperator.GTE) {
            // e.g. !(x >= y) -> x < y
            newOp = JBinaryOperator.LT;
          } else if (op == JBinaryOperator.LT) {
            // e.g. !(x < y) -> x >= y
            newOp = JBinaryOperator.GTE;
          }
          if (newOp != null) {
            JBinaryOperation newBinOp = new JBinaryOperation(program,
                argOp.getSourceInfo(), argOp.getType(), newOp, argOp.getLhs(),
                argOp.getRhs());
            ctx.replaceMe(newBinOp);
          }
        } else if (arg instanceof JPrefixOperation) {
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          return;
        }

        if (caseStatement.getExpr() != null) {
          // Create an if statement equivalent to the single-case switch.
          JBinaryOperation compareOperation = new JBinaryOperation(program,
              x.getSourceInfo(), program.getTypePrimitiveBoolean(),
              JBinaryOperator.EQ, x.getExpr(), caseStatement.getExpr());
          JBlock block = new JBlock(program, x.getSourceInfo());
          block.statements.add(statement);
          JIfStatement ifStatement = new JIfStatement(program,
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      }

      if (triviallyTrue) {
        // replace with a simple null test
        JNullLiteral nullLit = program.getLiteralNull();
        JBinaryOperation neq = new JBinaryOperation(program, x.getSourceInfo(),
            program.getTypePrimitiveBoolean(), JBinaryOperator.NEQ,
            x.getExpr(), nullLit);
        ctx.replaceMe(neq);
      } else if (triviallyFalse) {
        // replace with a false literal
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Related Classes of com.google.gwt.dev.jjs.ast.JBinaryOperation

  • com.google.gwt.dev.jjs.impl.AssertionNormalizer$AssertNormalizeVisitor
  • com.google.gwt.dev.jjs.impl.CastNormalizer$ConcatVisitor
  • com.google.gwt.dev.jjs.impl.CastNormalizer$ReplaceTypeChecksVisitor
  • com.google.gwt.dev.jjs.impl.CatchBlockNormalizer$CollapseCatchBlocks
  • com.google.gwt.dev.jjs.impl.CloneExpressionVisitor
  • com.google.gwt.dev.jjs.impl.CompoundAssignmentNormalizer$BreakupAssignOpsVisitor
  • com.google.gwt.dev.jjs.impl.CompoundAssignmentNormalizer$BreakupAssignOpsVisitor$ReplaceSideEffectsInLvalue
  • com.google.gwt.dev.jjs.impl.CompoundAssignmentNormalizer$ReplaceSideEffectsInLvalue
  • com.google.gwt.dev.jjs.impl.DeadCodeElimination$DeadCodeVisitor
  • com.google.gwt.dev.jjs.impl.EqualityNormalizer$BreakupAssignOpsVisitor
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