Package org.jruby.ir

Examples of org.jruby.ir.IRScope.definesLocalVariable()

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                    // could update this variable concurrently.
                    //
                    // Allocate a new hash-set and modify it to get around ConcurrentModificationException on reqdLoads
                    Set<LocalVariable> newReqdLoads = new HashSet<LocalVariable>(reqdLoads);
                    for (LocalVariable v: reqdLoads) {
                        if (!scope.definesLocalVariable(v)) newReqdLoads.remove(v);
                    }
                    reqdLoads = newReqdLoads;
                }
            } else if (scopeBindingHasEscaped && (i.getOperation() == Operation.PUT_GLOBAL_VAR)) {
                // global-var tracing can execute closures set up in previous trace-var calls
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                    //
                    // Allocate a new hash-set and modify it to get around ConcurrentModificationException on reqdLoads
                    Set<LocalVariable> newReqdLoads = new HashSet<LocalVariable>(reqdLoads);
                    it.next();
                    for (LocalVariable v: reqdLoads) {
                        if (!scope.definesLocalVariable(v)) {
                            it.add(new LoadLocalVarInstr(scope, getLocalVarReplacement(v, scope, varRenameMap), v));
                            it.previous();
                            newReqdLoads.remove(v);
                        }
                    }
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        // Load first use of variables in closures
        if ((scope instanceof IRClosure) && (basicBlock == problem.getScope().cfg().getEntryBB())) {
            // System.out.println("\n[In Entry BB] For CFG " + problem.getScope().cfg() + ":");
            // System.out.println("\t--> Reqd loads   : " + java.util.Arrays.toString(reqdLoads.toArray()));
            for (LocalVariable v : reqdLoads) {
                if (scope.usesLocalVariable(v) || scope.definesLocalVariable(v)) {
                    if (isEvalScript || !(v instanceof ClosureLocalVariable) || (scope != ((ClosureLocalVariable)v).definingScope)) {
                        it.add(new LoadLocalVarInstr(scope, getLocalVarReplacement(v, scope, varRenameMap), v));
                    }
                }
            }
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                // could update this variable concurrently.
                //
                // Allocate a new hash-set and modify it to get around ConcurrentModificationException on reqdLoads
                Set<LocalVariable> newReqdLoads = new HashSet<LocalVariable>(reqdLoads);
                for (LocalVariable v: reqdLoads) {
                    if (!scope.definesLocalVariable(v)) newReqdLoads.remove(v);
                }
                reqdLoads = newReqdLoads;
            }
        } else if (scopeBindingHasEscaped && (i.getOperation() == Operation.PUT_GLOBAL_VAR)) {
            // global-var tracing can execute closures set up in previous trace-var calls
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                    // because of multi-threading scenarios where some other scope
                    // could update this variable concurrently.
                    it.next();
                    for (Iterator<LocalVariable> iter = reqdLoads.iterator(); iter.hasNext();) {
                        LocalVariable v = iter.next();
                        if (!scope.definesLocalVariable(v)) {
                            it.add(new LoadLocalVarInstr(scope, getLocalVarReplacement(v, scope, varRenameMap), v));
                            it.previous();
                            iter.remove();
                        }
                    }
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        // Load first use of variables in closures
        if (scope instanceof IRClosure && basicBlock.isEntryBB()) {
            // System.out.println("\n[In Entry BB] For CFG " + getCFG() + ":");
            // System.out.println("\t--> Reqd loads   : " + java.util.Arrays.toString(reqdLoads.toArray()));
            for (LocalVariable v : reqdLoads) {
                if (scope.usesLocalVariable(v) || scope.definesLocalVariable(v)) {
                    if (isEvalScript || !(v instanceof ClosureLocalVariable) || (scope != ((ClosureLocalVariable)v).definingScope)) {
                        it.add(new LoadLocalVarInstr(scope, getLocalVarReplacement(v, scope, varRenameMap), v));
                    }
                }
            }
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