Examples of net.sourceforge.htmlunit.corejs.javascript.ast.FunctionNode

Package net.sourceforge.htmlunit.corejs.javascript.ast

Examples of net.sourceforge.htmlunit.corejs.javascript.ast.FunctionNode

net.sourceforge.htmlunit.corejs.javascript.ast.FunctionNode

A JavaScript function declaration or expression.

Node type is {@link Token#FUNCTION}.

FunctionDeclaration : function Identifier ( FormalParameterListopt ) { FunctionBody } FunctionExpression : function Identifieropt ( FormalParameterListopt ) { FunctionBody } FormalParameterList : Identifier FormalParameterList , Identifier FunctionBody : SourceElements Program : SourceElements SourceElements : SourceElement SourceElements SourceElement SourceElement : Statement FunctionDeclaration

JavaScript 1.8 introduces "function closures" of the form

function ([params] ) Expression

In this case the FunctionNode node will have no body but will have an expression.

                }
            } else if (this instanceof Scope) {
                if (this instanceof ScriptNode) {
                    ScriptNode sof = (ScriptNode)this;
                    if (this instanceof FunctionNode) {
                        FunctionNode fn = (FunctionNode)this;
                        sb.append(' ');
                        sb.append(fn.getName());
                    }
                    sb.append(" [source name: ");
                    sb.append(sof.getSourceName());
                    sb.append("] [encoded source length: ");
                    sb.append(sof.getEncodedSourceEnd()

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            for (Node cursor = n.getFirstChild(); cursor != null;
                 cursor = cursor.getNext())
            {
                if (cursor.getType() == Token.FUNCTION) {
                    int fnIndex = cursor.getExistingIntProp(Node.FUNCTION_PROP);
                    FunctionNode fn = treeTop.getFunctionNode(fnIndex);
                    toStringTreeHelper(fn, fn, null, level + 1, sb);
                } else {
                    toStringTreeHelper(treeTop, cursor, printIds, level+1, sb);
                }
            }

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            return new Object[] { scriptClassName, scriptClassBytes };
        }
        int functionCount = tree.getFunctionCount();
        ObjToIntMap functionNames = new ObjToIntMap(functionCount);
        for (int i = 0; i != functionCount; ++i) {
            FunctionNode ofn = tree.getFunctionNode(i);
            String name = ofn.getName();
            if (name != null && name.length() != 0) {
                functionNames.put(name, ofn.getParamCount());
            }
        }
        if (superClass == null) {
            superClass = ScriptRuntime.ObjectClass;
        }

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        fnode.setCompilerData(this);
    }


    static OptFunctionNode get(ScriptNode scriptOrFn, int i)
    {
        FunctionNode fnode = scriptOrFn.getFunctionNode(i);
        return (OptFunctionNode)fnode.getCompilerData();
    }

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    }


    private static void initOptFunctions_r(ScriptNode scriptOrFn)
    {
        for (int i = 0, N = scriptOrFn.getFunctionCount(); i != N; ++i) {
            FunctionNode fn = scriptOrFn.getFunctionNode(i);
            new OptFunctionNode(fn);
            initOptFunctions_r(fn);
        }
    }

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    public final void transform(ScriptNode tree)
    {
        transformCompilationUnit(tree);
        for (int i = 0; i != tree.getFunctionCount(); ++i) {
            FunctionNode fn = tree.getFunctionNode(i);
            transform(fn);
        }
    }

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    private void generateFunctionICode()
    {
        itsInFunctionFlag = true;


        FunctionNode theFunction = (FunctionNode)scriptOrFn;


        itsData.itsFunctionType = theFunction.getFunctionType();
        itsData.itsNeedsActivation = theFunction.requiresActivation();
        if (theFunction.getFunctionName() != null) {
            itsData.itsName = theFunction.getName();
        }
        if (!theFunction.getIgnoreDynamicScope()) {
            if (compilerEnv.isUseDynamicScope()) {
                itsData.useDynamicScope = true;
            }
        }
        if (theFunction.isGenerator()) {
          addIcode(Icode_GENERATOR);
          addUint16(theFunction.getBaseLineno() & 0xFFFF);
        }


        generateICodeFromTree(theFunction.getLastChild());
    }

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        int functionCount = scriptOrFn.getFunctionCount();
        if (functionCount == 0) return;


        InterpreterData[] array = new InterpreterData[functionCount];
        for (int i = 0; i != functionCount; i++) {
            FunctionNode fn = scriptOrFn.getFunctionNode(i);
            CodeGenerator gen = new CodeGenerator();
            gen.compilerEnv = compilerEnv;
            gen.scriptOrFn = fn;
            gen.itsData = new InterpreterData(itsData);
            gen.generateFunctionICode();

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        switch (type) {


          case Token.FUNCTION:
            {
                int fnIndex = node.getExistingIntProp(Node.FUNCTION_PROP);
                FunctionNode fn = scriptOrFn.getFunctionNode(fnIndex);
                // See comments in visitStatement for Token.FUNCTION case
                if (fn.getFunctionType() != FunctionNode.FUNCTION_EXPRESSION) {
                    throw Kit.codeBug();
                }
                addIndexOp(Icode_CLOSURE_EXPR, fnIndex);
                stackChange(1);
            }

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Related Classes of net.sourceforge.htmlunit.corejs.javascript.ast.FunctionNode

net.sourceforge.htmlunit.corejs.javascript.CodeGenerator

net.sourceforge.htmlunit.corejs.javascript.Node

net.sourceforge.htmlunit.corejs.javascript.NodeTransformer

net.sourceforge.htmlunit.corejs.javascript.optimizer.ClassCompiler

net.sourceforge.htmlunit.corejs.javascript.optimizer.Codegen

net.sourceforge.htmlunit.corejs.javascript.optimizer.OptFunctionNode

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