Java Code Examples for jdk.nashorn.internal.ir.BinaryNode#isSelfModifying()

The following examples show how to use jdk.nashorn.internal.ir.BinaryNode#isSelfModifying() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: OptimisticTypesCalculator.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    if(binaryNode.isAssignment()) {
        final Expression lhs = binaryNode.lhs();
        if(!binaryNode.isSelfModifying()) {
            tagNeverOptimistic(lhs);
        }
        if(lhs instanceof IdentNode) {
            final Symbol symbol = ((IdentNode)lhs).getSymbol();
            // Assignment to internal symbols is never optimistic, except for self-assignment expressions
            if(symbol.isInternal() && !binaryNode.rhs().isSelfModifying()) {
                tagNeverOptimistic(binaryNode.rhs());
            }
        }
    } else if(binaryNode.isTokenType(TokenType.INSTANCEOF)) {
        tagNeverOptimistic(binaryNode.lhs());
        tagNeverOptimistic(binaryNode.rhs());
    }
    return true;
}
Example 2
Source File: OptimisticTypesCalculator.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    if(binaryNode.isAssignment()) {
        final Expression lhs = binaryNode.lhs();
        if(!binaryNode.isSelfModifying()) {
            tagNeverOptimistic(lhs);
        }
        if(lhs instanceof IdentNode) {
            final Symbol symbol = ((IdentNode)lhs).getSymbol();
            // Assignment to internal symbols is never optimistic, except for self-assignment expressions
            if(symbol.isInternal() && !binaryNode.rhs().isSelfModifying()) {
                tagNeverOptimistic(binaryNode.rhs());
            }
        }
    } else if(binaryNode.isTokenType(TokenType.INSTANCEOF)) {
        tagNeverOptimistic(binaryNode.lhs());
        tagNeverOptimistic(binaryNode.rhs());
    }
    return true;
}
Example 3
Source File: OptimisticTypesCalculator.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    if(binaryNode.isAssignment()) {
        final Expression lhs = binaryNode.lhs();
        if(!binaryNode.isSelfModifying()) {
            tagNeverOptimistic(lhs);
        }
        if(lhs instanceof IdentNode) {
            final Symbol symbol = ((IdentNode)lhs).getSymbol();
            // Assignment to internal symbols is never optimistic, except for self-assignment expressions
            if(symbol.isInternal() && !binaryNode.rhs().isSelfModifying()) {
                tagNeverOptimistic(binaryNode.rhs());
            }
        }
    } else if(binaryNode.isTokenType(TokenType.INSTANCEOF)) {
        tagNeverOptimistic(binaryNode.lhs());
        tagNeverOptimistic(binaryNode.rhs());
    }
    return true;
}
Example 4
Source File: OptimisticTypesCalculator.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    if(binaryNode.isAssignment()) {
        final Expression lhs = binaryNode.lhs();
        if(!binaryNode.isSelfModifying()) {
            tagNeverOptimistic(lhs);
        }
        if(lhs instanceof IdentNode) {
            final Symbol symbol = ((IdentNode)lhs).getSymbol();
            // Assignment to internal symbols is never optimistic, except for self-assignment expressions
            if(symbol.isInternal() && !binaryNode.rhs().isSelfModifying()) {
                tagNeverOptimistic(binaryNode.rhs());
            }
        }
    } else if(binaryNode.isTokenType(TokenType.INSTANCEOF)) {
        tagNeverOptimistic(binaryNode.lhs());
        tagNeverOptimistic(binaryNode.rhs());
    }
    return true;
}
Example 5
Source File: OptimisticTypesCalculator.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    if(binaryNode.isAssignment()) {
        final Expression lhs = binaryNode.lhs();
        if(!binaryNode.isSelfModifying()) {
            tagNeverOptimistic(lhs);
        }
        if(lhs instanceof IdentNode) {
            final Symbol symbol = ((IdentNode)lhs).getSymbol();
            // Assignment to internal symbols is never optimistic, except for self-assignment expressions
            if(symbol.isInternal() && !binaryNode.rhs().isSelfModifying()) {
                tagNeverOptimistic(binaryNode.rhs());
            }
        }
    } else if(binaryNode.isTokenType(TokenType.INSTANCEOF)
            || binaryNode.isTokenType(TokenType.EQ_STRICT)
            || binaryNode.isTokenType(TokenType.NE_STRICT)) {
        tagNeverOptimistic(binaryNode.lhs());
        tagNeverOptimistic(binaryNode.rhs());
    }
    return true;
}
Example 6
Source File: OptimisticTypesCalculator.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    if(binaryNode.isAssignment()) {
        final Expression lhs = binaryNode.lhs();
        if(!binaryNode.isSelfModifying()) {
            tagNeverOptimistic(lhs);
        }
        if(lhs instanceof IdentNode) {
            final Symbol symbol = ((IdentNode)lhs).getSymbol();
            // Assignment to internal symbols is never optimistic, except for self-assignment expressions
            if(symbol.isInternal() && !binaryNode.rhs().isSelfModifying()) {
                tagNeverOptimistic(binaryNode.rhs());
            }
        }
    } else if(binaryNode.isTokenType(TokenType.INSTANCEOF)) {
        tagNeverOptimistic(binaryNode.lhs());
        tagNeverOptimistic(binaryNode.rhs());
    }
    return true;
}
Example 7
Source File: OptimisticTypesCalculator.java    From jdk8u_nashorn with GNU General Public License v2.0 6 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    if(binaryNode.isAssignment()) {
        final Expression lhs = binaryNode.lhs();
        if(!binaryNode.isSelfModifying()) {
            tagNeverOptimistic(lhs);
        }
        if(lhs instanceof IdentNode) {
            final Symbol symbol = ((IdentNode)lhs).getSymbol();
            // Assignment to internal symbols is never optimistic, except for self-assignment expressions
            if(symbol.isInternal() && !binaryNode.rhs().isSelfModifying()) {
                tagNeverOptimistic(binaryNode.rhs());
            }
        }
    } else if(binaryNode.isTokenType(TokenType.INSTANCEOF)) {
        tagNeverOptimistic(binaryNode.lhs());
        tagNeverOptimistic(binaryNode.rhs());
    }
    return true;
}
Example 8
Source File: LocalVariableTypesCalculator.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    // NOTE: regardless of operator's lexical associativity, lhs is always evaluated first.
    final Expression lhs = binaryNode.lhs();
    final LvarType lhsType;
    if (!(lhs instanceof IdentNode && binaryNode.isTokenType(TokenType.ASSIGN))) {
        lhsType = visitExpression(lhs);
    } else {
        // Can't visit IdentNode on LHS of a simple assignment, as visits imply use, and this is def.
        // The type is irrelevant, as only RHS is used to determine the type anyway.
        lhsType = LvarType.UNDEFINED;
    }

    final boolean isLogical = binaryNode.isLogical();
    final Label joinLabel = isLogical ? new Label("") : null;
    if(isLogical) {
        jumpToLabel((JoinPredecessor)lhs, joinLabel);
    }

    final Expression rhs = binaryNode.rhs();
    final LvarType rhsType = visitExpression(rhs);
    if(isLogical) {
        jumpToLabel((JoinPredecessor)rhs, joinLabel);
    }
    joinOnLabel(joinLabel);

    final LvarType type = toLvarType(binaryNode.setOperands(lhsType.typeExpression, rhsType.typeExpression).getType());

    if(binaryNode.isAssignment() && lhs instanceof IdentNode) {
        if(binaryNode.isSelfModifying()) {
            onSelfAssignment((IdentNode)lhs, type);
        } else {
            onAssignment((IdentNode)lhs, type);
        }
    }
    typeStack.push(type);
    return false;
}
Example 9
Source File: LocalVariableTypesCalculator.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    // NOTE: regardless of operator's lexical associativity, lhs is always evaluated first.
    final Expression lhs = binaryNode.lhs();
    final LvarType lhsType;
    if (!(lhs instanceof IdentNode && binaryNode.isTokenType(TokenType.ASSIGN))) {
        lhsType = visitExpression(lhs);
    } else {
        // Can't visit IdentNode on LHS of a simple assignment, as visits imply use, and this is def.
        // The type is irrelevant, as only RHS is used to determine the type anyway.
        lhsType = LvarType.UNDEFINED;
    }

    final boolean isLogical = binaryNode.isLogical();
    final Label joinLabel = isLogical ? new Label("") : null;
    if(isLogical) {
        jumpToLabel((JoinPredecessor)lhs, joinLabel);
    }

    final Expression rhs = binaryNode.rhs();
    final LvarType rhsType = visitExpression(rhs);
    if(isLogical) {
        jumpToLabel((JoinPredecessor)rhs, joinLabel);
    }
    joinOnLabel(joinLabel);

    final LvarType type = toLvarType(binaryNode.setOperands(lhsType.typeExpression, rhsType.typeExpression).getType());

    if(binaryNode.isAssignment() && lhs instanceof IdentNode) {
        if(binaryNode.isSelfModifying()) {
            onSelfAssignment((IdentNode)lhs, type);
        } else {
            onAssignment((IdentNode)lhs, type);
        }
    }
    typeStack.push(type);
    return false;
}
Example 10
Source File: LocalVariableTypesCalculator.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    // NOTE: regardless of operator's lexical associativity, lhs is always evaluated first.
    final Expression lhs = binaryNode.lhs();
    final LvarType lhsType;
    if (!(lhs instanceof IdentNode && binaryNode.isTokenType(TokenType.ASSIGN))) {
        lhsType = visitExpression(lhs);
    } else {
        // Can't visit IdentNode on LHS of a simple assignment, as visits imply use, and this is def.
        // The type is irrelevant, as only RHS is used to determine the type anyway.
        lhsType = LvarType.UNDEFINED;
    }

    final boolean isLogical = binaryNode.isLogical();
    final Label joinLabel = isLogical ? new Label("") : null;
    if(isLogical) {
        jumpToLabel((JoinPredecessor)lhs, joinLabel);
    }

    final Expression rhs = binaryNode.rhs();
    final LvarType rhsType = visitExpression(rhs);
    if(isLogical) {
        jumpToLabel((JoinPredecessor)rhs, joinLabel);
    }
    joinOnLabel(joinLabel);

    final LvarType type = toLvarType(binaryNode.setOperands(lhsType.typeExpression, rhsType.typeExpression).getType());

    if(binaryNode.isAssignment() && lhs instanceof IdentNode) {
        if(binaryNode.isSelfModifying()) {
            onSelfAssignment((IdentNode)lhs, type);
        } else {
            onAssignment((IdentNode)lhs, type);
        }
    }
    typeStack.push(type);
    return false;
}
Example 11
Source File: LocalVariableTypesCalculator.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    // NOTE: regardless of operator's lexical associativity, lhs is always evaluated first.
    final Expression lhs = binaryNode.lhs();
    final LvarType lhsType;
    if (!(lhs instanceof IdentNode && binaryNode.isTokenType(TokenType.ASSIGN))) {
        lhsType = visitExpression(lhs);
    } else {
        // Can't visit IdentNode on LHS of a simple assignment, as visits imply use, and this is def.
        // The type is irrelevant, as only RHS is used to determine the type anyway.
        lhsType = LvarType.UNDEFINED;
    }

    final boolean isLogical = binaryNode.isLogical();
    final Label joinLabel = isLogical ? new Label("") : null;
    if(isLogical) {
        jumpToLabel((JoinPredecessor)lhs, joinLabel);
    }

    final Expression rhs = binaryNode.rhs();
    final LvarType rhsType = visitExpression(rhs);
    if(isLogical) {
        jumpToLabel((JoinPredecessor)rhs, joinLabel);
    }
    joinOnLabel(joinLabel);

    final LvarType type = toLvarType(binaryNode.setOperands(lhsType.typeExpression, rhsType.typeExpression).getType());

    if(binaryNode.isAssignment() && lhs instanceof IdentNode) {
        if(binaryNode.isSelfModifying()) {
            onSelfAssignment((IdentNode)lhs, type);
        } else {
            onAssignment((IdentNode)lhs, type);
        }
    }
    typeStack.push(type);
    return false;
}
Example 12
Source File: LocalVariableTypesCalculator.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    // NOTE: regardless of operator's lexical associativity, lhs is always evaluated first.
    final Expression lhs = binaryNode.lhs();
    final LvarType lhsType;
    if (!(lhs instanceof IdentNode && binaryNode.isTokenType(TokenType.ASSIGN))) {
        lhsType = visitExpression(lhs);
    } else {
        // Can't visit IdentNode on LHS of a simple assignment, as visits imply use, and this is def.
        // The type is irrelevant, as only RHS is used to determine the type anyway.
        lhsType = LvarType.UNDEFINED;
    }

    final boolean isLogical = binaryNode.isLogical();
    final Label joinLabel = isLogical ? new Label("") : null;
    if(isLogical) {
        jumpToLabel((JoinPredecessor)lhs, joinLabel);
    }

    final Expression rhs = binaryNode.rhs();
    final LvarType rhsType = visitExpression(rhs);
    if(isLogical) {
        jumpToLabel((JoinPredecessor)rhs, joinLabel);
    }
    joinOnLabel(joinLabel);

    final LvarType type = toLvarType(binaryNode.setOperands(lhsType.typeExpression, rhsType.typeExpression).getType());

    if(binaryNode.isAssignment() && lhs instanceof IdentNode) {
        if(binaryNode.isSelfModifying()) {
            onSelfAssignment((IdentNode)lhs, type);
        } else {
            onAssignment((IdentNode)lhs, type);
        }
    }
    typeStack.push(type);
    return false;
}
Example 13
Source File: LocalVariableTypesCalculator.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    // NOTE: regardless of operator's lexical associativity, lhs is always evaluated first.
    final Expression lhs = binaryNode.lhs();
    final LvarType lhsType;
    if (!(lhs instanceof IdentNode && binaryNode.isTokenType(TokenType.ASSIGN))) {
        lhsType = visitExpression(lhs);
    } else {
        // Can't visit IdentNode on LHS of a simple assignment, as visits imply use, and this is def.
        // The type is irrelevant, as only RHS is used to determine the type anyway.
        lhsType = LvarType.UNDEFINED;
    }

    final boolean isLogical = binaryNode.isLogical();
    final Label joinLabel = isLogical ? new Label("") : null;
    if(isLogical) {
        jumpToLabel((JoinPredecessor)lhs, joinLabel);
    }

    final Expression rhs = binaryNode.rhs();
    final LvarType rhsType = visitExpression(rhs);
    if(isLogical) {
        jumpToLabel((JoinPredecessor)rhs, joinLabel);
    }
    joinOnLabel(joinLabel);

    final LvarType type = toLvarType(binaryNode.setOperands(lhsType.typeExpression, rhsType.typeExpression).getType());

    if(binaryNode.isAssignment() && lhs instanceof IdentNode) {
        if(binaryNode.isSelfModifying()) {
            onSelfAssignment((IdentNode)lhs, type);
        } else {
            onAssignment((IdentNode)lhs, type);
        }
    }
    typeStack.push(type);
    return false;
}
Example 14
Source File: LocalVariableTypesCalculator.java    From jdk8u_nashorn with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public boolean enterBinaryNode(final BinaryNode binaryNode) {
    // NOTE: regardless of operator's lexical associativity, lhs is always evaluated first.
    final Expression lhs = binaryNode.lhs();
    final LvarType lhsType;
    if (!(lhs instanceof IdentNode && binaryNode.isTokenType(TokenType.ASSIGN))) {
        lhsType = visitExpression(lhs);
    } else {
        // Can't visit IdentNode on LHS of a simple assignment, as visits imply use, and this is def.
        // The type is irrelevant, as only RHS is used to determine the type anyway.
        lhsType = LvarType.UNDEFINED;
    }

    final boolean isLogical = binaryNode.isLogical();
    final Label joinLabel = isLogical ? new Label("") : null;
    if(isLogical) {
        jumpToLabel((JoinPredecessor)lhs, joinLabel);
    }

    final Expression rhs = binaryNode.rhs();
    final LvarType rhsType = visitExpression(rhs);
    if(isLogical) {
        jumpToLabel((JoinPredecessor)rhs, joinLabel);
    }
    joinOnLabel(joinLabel);

    final LvarType type = toLvarType(binaryNode.setOperands(lhsType.typeExpression, rhsType.typeExpression).getType());

    if(binaryNode.isAssignment() && lhs instanceof IdentNode) {
        if(binaryNode.isSelfModifying()) {
            onSelfAssignment((IdentNode)lhs, type);
        } else {
            onAssignment((IdentNode)lhs, type);
        }
    }
    typeStack.push(type);
    return false;
}