Package org.jruby.ir.operands

Examples of org.jruby.ir.operands.LocalVariable

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    }

    @Override
    public LocalVariable getNewLocalVariable(String name, int scopeDepth) {
        assert scopeDepth == 0: "Local variable depth in IRMethod should always be zero (" + name + " had depth of " + scopeDepth + ")";
        LocalVariable lvar = new LocalVariable(name, 0, localVars.nextSlot);
        localVars.putVariable(name, lvar);
        return lvar;
    }
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        return lvar;
    }

    @Override
    public LocalVariable getLocalVariable(String name, int scopeDepth) {
        LocalVariable lvar = findExistingLocalVariable(name, scopeDepth);
        if (lvar == null) lvar = getNewLocalVariable(name, scopeDepth);
        return lvar;
    }
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    @Override
    public LocalVariable findExistingLocalVariable(String name, int scopeDepth) {
        // Look in the nearest non-eval scope's shared eval scope vars first.
        // If you dont find anything there, look in the nearest non-eval scope's regular vars.
        LocalVariable lvar = nearestNonEvalScope.evalScopeVars.getVariable(name);
        if ((lvar != null) || scopeDepth == 0) return lvar;
        else return nearestNonEvalScope.findExistingLocalVariable(name, scopeDepth-nearestNonEvalScopeDepth-1);
    }
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    }

    @Override
    public LocalVariable getNewLocalVariable(String name, int depth) {
        assert depth == nearestNonEvalScopeDepth: "Local variable depth in IREvalScript:getNewLocalVariable must be " + nearestNonEvalScopeDepth + ".  Got " + depth;
        LocalVariable lvar = new ClosureLocalVariable(this, name, 0, nearestNonEvalScope.evalScopeVars.nextSlot);
        nearestNonEvalScope.evalScopeVars.putVariable(name, lvar);
        return lvar;
    }
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                if (resultVar != null) {
                    if (resultVar instanceof TemporaryVariable) {
                        temp[((TemporaryVariable)resultVar).offset] = result;
                    }
                    else {
                        LocalVariable lv = (LocalVariable)resultVar;
                        currDynScope.setValue((IRubyObject) result, lv.getLocation(), lv.getScopeDepth());
                    }
                }
            } catch (Throwable t) {
                // Unrescuable:
                //    IRReturnJump, ThreadKill, RubyContinuation, MainExitException, etc.
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            } else if (inClosureInlineMode) {
                // when inlining a closure,
                // - local var depths are reduced by 1 (to move them to the host scope)
                // - tmp vars are reallocated in the host scope
                if (v instanceof LocalVariable) {
                    LocalVariable lv = (LocalVariable)v;
                    int depth = lv.getScopeDepth();
                    newVar = getInlineHostScope().getLocalVariable(lv.getName(), depth > 1 ? depth - 1 : 0);
                } else {
                    newVar = getInlineHostScope().getNewTemporaryVariable();
                }
            } else {
                // when inlining a method, local vars and temps have to be renamed
                newVar = getInlineHostScope().getNewInlineVariable(inlineVarPrefix, v);
            }
            this.varRenameMap.put(v, newVar);
        } else if (inClosureCloneMode && (v instanceof LocalVariable)) {
            LocalVariable l_v = (LocalVariable)v;
            LocalVariable l_newVar = (LocalVariable)newVar;
            if (l_v.getScopeDepth() != l_newVar.getScopeDepth()) newVar = l_newVar.cloneForDepth(l_v.getScopeDepth());
        }
        return newVar;
    }
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    @Override
    protected LocalVariable findExistingLocalVariable(String name, int scopeDepth) {
        // Look in the nearest non-eval scope's shared eval scope vars first.
        // If you dont find anything there, look in the nearest non-eval scope's regular vars.
        LocalVariable lvar = lookupExistingLVar(name);
        if (lvar != null || scopeDepth == 0) return lvar;
        else return nearestNonEvalScope.findExistingLocalVariable(name, scopeDepth-nearestNonEvalScopeDepth-1);
    }
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        //
        // FIXME: Investigate if this is something left behind from
        // 1.8 mode support. Or if we need to introduce the additional
        // IRScope object.
        int lookupDepth = isModuleOrInstanceEval() ? scopeDepth - 1 : scopeDepth;
        LocalVariable lvar = findExistingLocalVariable(name, lookupDepth);
        if (lvar == null) lvar = getNewLocalVariable(name, lookupDepth);
        // Create a copy of the variable usable at the right depth
        if (lvar.getScopeDepth() != scopeDepth) lvar = lvar.cloneForDepth(scopeDepth);

        return lvar;
    }
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    }

    @Override
    public LocalVariable getNewLocalVariable(String name, int depth) {
        assert depth == nearestNonEvalScopeDepth: "Local variable depth in IREvalScript:getNewLocalVariable for " + name + " must be " + nearestNonEvalScopeDepth + ".  Got " + depth;
        LocalVariable lvar = new ClosureLocalVariable(this, name, 0, nearestNonEvalScope.evalScopeVars.size());
        nearestNonEvalScope.evalScopeVars.put(name, lvar);
        // CON: unsure how to get static scope to reflect this name as in IRClosure and IRMethod
        return lvar;
    }
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    }

    @Override
    public LocalVariable getNewFlipStateVariable() {
        String flipVarName = "%flip_" + allocateNextPrefixedName("%flip");
        LocalVariable v = lookupExistingLVar(flipVarName);
        if (v == null) {
            v = getNewLocalVariable(flipVarName, 0);
        }
        return v;
    }
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Related Classes of org.jruby.ir.operands.LocalVariable

  • org.jruby.ir.dataflow.analyses.LiveVariableNode
  • org.jruby.ir.dataflow.analyses.LoadLocalVarPlacementNode
  • org.jruby.ir.dataflow.analyses.StoreLocalVarPlacementNode
  • org.jruby.ir.interpreter.Interpreter
  • org.jruby.ir.IRClosure
  • org.jruby.ir.IREvalScript
  • org.jruby.ir.IRMethod
  • org.jruby.ir.IRScope
  • org.jruby.ir.passes.OptimizeDynScopesPass
  • org.jruby.ir.persistence.IRReader
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