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path: root/Godeps/_workspace/src/github.com/obscuren/otto/cmpl_evaluate.go
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package otto

import (
    "strconv"
)

func (self *_runtime) cmpl_evaluate_nodeProgram(node *_nodeProgram) Value {
    self.cmpl_functionDeclaration(node.functionList)
    self.cmpl_variableDeclaration(node.varList)
    return self.cmpl_evaluate_nodeStatementList(node.body)
}

func (self *_runtime) cmpl_call_nodeFunction(function *_object, environment *_functionEnvironment, node *_nodeFunctionLiteral, this Value, argumentList []Value) Value {

    indexOfParameterName := make([]string, len(argumentList))
    // function(abc, def, ghi)
    // indexOfParameterName[0] = "abc"
    // indexOfParameterName[1] = "def"
    // indexOfParameterName[2] = "ghi"
    // ...

    argumentsFound := false
    for index, name := range node.parameterList {
        if name == "arguments" {
            argumentsFound = true
        }
        value := UndefinedValue()
        if index < len(argumentList) {
            value = argumentList[index]
            indexOfParameterName[index] = name
        }
        self.localSet(name, value)
    }

    if !argumentsFound {
        arguments := self.newArgumentsObject(indexOfParameterName, environment, len(argumentList))
        arguments.defineProperty("callee", toValue_object(function), 0101, false)
        environment.arguments = arguments
        self.localSet("arguments", toValue_object(arguments))
        for index, _ := range argumentList {
            if index < len(node.parameterList) {
                continue
            }
            indexAsString := strconv.FormatInt(int64(index), 10)
            arguments.defineProperty(indexAsString, argumentList[index], 0111, false)
        }
    }

    self.cmpl_functionDeclaration(node.functionList)
    self.cmpl_variableDeclaration(node.varList)

    result := self.cmpl_evaluate_nodeStatement(node.body)
    if result.isResult() {
        return result
    }

    return UndefinedValue()
}

func (self *_runtime) cmpl_functionDeclaration(list []*_nodeFunctionLiteral) {
    executionContext := self._executionContext(0)
    eval := executionContext.eval
    environment := executionContext.VariableEnvironment

    for _, function := range list {
        name := function.name
        value := self.cmpl_evaluate_nodeExpression(function)
        if !environment.HasBinding(name) {
            environment.CreateMutableBinding(name, eval == true)
        }
        // TODO 10.5.5.e
        environment.SetMutableBinding(name, value, false) // TODO strict
    }
}

func (self *_runtime) cmpl_variableDeclaration(list []string) {
    executionContext := self._executionContext(0)
    eval := executionContext.eval
    environment := executionContext.VariableEnvironment

    for _, name := range list {
        if !environment.HasBinding(name) {
            environment.CreateMutableBinding(name, eval == true)
            environment.SetMutableBinding(name, UndefinedValue(), false) // TODO strict
        }
    }
}