Example usage for org.eclipse.jdt.internal.compiler.flow FlowInfo isPotentiallyAssigned

Introduction

In this page you can find the example usage for org.eclipse.jdt.internal.compiler.flow FlowInfo isPotentiallyAssigned.

Prototype

abstract public boolean isPotentiallyAssigned(LocalVariableBinding field);

Source Link

Document

Check status of potential assignment for a local variable.

Usage

From source file:org.eclipse.objectteams.otdt.internal.core.compiler.ast.BaseCallMessageSend.java

License:Open Source License

public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {
    flowInfo = super.analyseCode(currentScope, flowContext, flowInfo);
    MethodDeclaration callinMethod = getEnclosingCallinMethod(currentScope);
    LocalVariableBinding trackingVariable = callinMethod.baseCallTrackingVariable.binding;
    if (flowInfo.isDefinitelyAssigned(callinMethod.baseCallTrackingVariable))
        currentScope.problemReporter().definitelyDuplicateBasecall(this._wrappee);
    else if (flowInfo.isPotentiallyAssigned(trackingVariable))
        currentScope.problemReporter().potentiallyDuplicateBasecall(this._wrappee);
    else/*from   w  ww.j  a va  2  s. com*/
        flowInfo.markAsDefinitelyAssigned(trackingVariable);

    // check exceptions thrown by any bound base method:
    MethodScope methodScope = currentScope.methodScope();
    if (methodScope != null) {
        MethodModel methodModel = methodScope.referenceMethod().binding.model;
        if (methodModel != null && methodModel._baseExceptions != null) {
            for (ReferenceBinding exceptionType : methodModel._baseExceptions)
                flowContext.checkExceptionHandlers(exceptionType, this, flowInfo, currentScope);
        }
    }

    if (this.isSuperAccess)
        //    signal that the base call surrogate needs to handle super-access:
        MethodModel.addCallinFlag(currentScope.methodScope().referenceMethod(),
                IOTConstants.CALLIN_FLAG_BASE_SUPER_CALL);

    return flowInfo;
}

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From source file:org.eclipse.objectteams.otdt.internal.core.compiler.ast.TSuperMessageSend.java

License:Open Source License

/** Check whether this message send contributes to base call analysis */
public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {
    flowInfo = super.analyseCode(currentScope, flowContext, flowInfo);
    if (this.binding.isCallin()) {
        MethodBinding tsuperMethod = this.binding;
        if (tsuperMethod.copyInheritanceSrc != null)
            tsuperMethod = tsuperMethod.copyInheritanceSrc;
        if (!MethodModel.hasCallinFlag(tsuperMethod, CALLIN_FLAG_DEFINITELY_MISSING_BASECALL)) { // no contribution if no base call.
            MethodDeclaration callinMethod = (MethodDeclaration) currentScope.methodScope().referenceContext;
            LocalVariableBinding trackingVariable = callinMethod.baseCallTrackingVariable.binding;
            if (MethodModel.hasCallinFlag(tsuperMethod, CALLIN_FLAG_POTENTIALLY_MISSING_BASECALL)) {
                if (flowInfo.isDefinitelyAssigned(trackingVariable)
                        || flowInfo.isPotentiallyAssigned(trackingVariable)) {
                    currentScope.problemReporter().potentiallyDuplicateBasecall(this);
                } else {
                    FlowInfo potential = flowInfo.copy();
                    potential.markAsDefinitelyAssigned(trackingVariable);
                    flowInfo = FlowInfo.conditional(flowInfo.initsWhenTrue(), potential.initsWhenTrue());
                }// w  ww.  j  a v a2s . com
            } else { // tsuper definitely has a base call:
                if (flowInfo.isDefinitelyAssigned(trackingVariable))
                    currentScope.problemReporter().definitelyDuplicateBasecall(this);
                else if (flowInfo.isPotentiallyAssigned(trackingVariable))
                    currentScope.problemReporter().potentiallyDuplicateBasecall(this);
                if (!flowInfo.isDefinitelyAssigned(trackingVariable))
                    flowInfo.markAsDefinitelyAssigned(trackingVariable);
            }
        }
    }
    return flowInfo;
}

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