diff options
Diffstat (limited to 'Godeps/_workspace/src/github.com/robertkrimen/otto/cmpl_evaluate_statement.go')
| -rw-r--r-- | Godeps/_workspace/src/github.com/robertkrimen/otto/cmpl_evaluate_statement.go | 424 |
1 files changed, 0 insertions, 424 deletions
diff --git a/Godeps/_workspace/src/github.com/robertkrimen/otto/cmpl_evaluate_statement.go b/Godeps/_workspace/src/github.com/robertkrimen/otto/cmpl_evaluate_statement.go deleted file mode 100644 index e16c6ac6c..000000000 --- a/Godeps/_workspace/src/github.com/robertkrimen/otto/cmpl_evaluate_statement.go +++ /dev/null @@ -1,424 +0,0 @@ -package otto - -import ( - "fmt" - "runtime" - - "github.com/robertkrimen/otto/token" -) - -func (self *_runtime) cmpl_evaluate_nodeStatement(node _nodeStatement) Value { - // Allow interpreter interruption - // If the Interrupt channel is nil, then - // we avoid runtime.Gosched() overhead (if any) - // FIXME: Test this - if self.otto.Interrupt != nil { - runtime.Gosched() - select { - case value := <-self.otto.Interrupt: - value() - default: - } - } - - switch node := node.(type) { - - case *_nodeBlockStatement: - labels := self.labels - self.labels = nil - - value := self.cmpl_evaluate_nodeStatementList(node.list) - switch value.kind { - case valueResult: - switch value.evaluateBreak(labels) { - case resultBreak: - return emptyValue - } - } - return value - - case *_nodeBranchStatement: - target := node.label - switch node.branch { // FIXME Maybe node.kind? node.operator? - case token.BREAK: - return toValue(newBreakResult(target)) - case token.CONTINUE: - return toValue(newContinueResult(target)) - } - - case *_nodeDebuggerStatement: - if self.debugger != nil { - self.debugger(self.otto) - } - return emptyValue // Nothing happens. - - case *_nodeDoWhileStatement: - return self.cmpl_evaluate_nodeDoWhileStatement(node) - - case *_nodeEmptyStatement: - return emptyValue - - case *_nodeExpressionStatement: - return self.cmpl_evaluate_nodeExpression(node.expression) - - case *_nodeForInStatement: - return self.cmpl_evaluate_nodeForInStatement(node) - - case *_nodeForStatement: - return self.cmpl_evaluate_nodeForStatement(node) - - case *_nodeIfStatement: - return self.cmpl_evaluate_nodeIfStatement(node) - - case *_nodeLabelledStatement: - self.labels = append(self.labels, node.label) - defer func() { - if len(self.labels) > 0 { - self.labels = self.labels[:len(self.labels)-1] // Pop the label - } else { - self.labels = nil - } - }() - return self.cmpl_evaluate_nodeStatement(node.statement) - - case *_nodeReturnStatement: - if node.argument != nil { - return toValue(newReturnResult(self.cmpl_evaluate_nodeExpression(node.argument).resolve())) - } - return toValue(newReturnResult(Value{})) - - case *_nodeSwitchStatement: - return self.cmpl_evaluate_nodeSwitchStatement(node) - - case *_nodeThrowStatement: - value := self.cmpl_evaluate_nodeExpression(node.argument).resolve() - panic(newException(value)) - - case *_nodeTryStatement: - return self.cmpl_evaluate_nodeTryStatement(node) - - case *_nodeVariableStatement: - // Variables are already defined, this is initialization only - for _, variable := range node.list { - self.cmpl_evaluate_nodeVariableExpression(variable.(*_nodeVariableExpression)) - } - return emptyValue - - case *_nodeWhileStatement: - return self.cmpl_evaluate_nodeWhileStatement(node) - - case *_nodeWithStatement: - return self.cmpl_evaluate_nodeWithStatement(node) - - } - - panic(fmt.Errorf("Here be dragons: evaluate_nodeStatement(%T)", node)) -} - -func (self *_runtime) cmpl_evaluate_nodeStatementList(list []_nodeStatement) Value { - var result Value - for _, node := range list { - value := self.cmpl_evaluate_nodeStatement(node) - switch value.kind { - case valueResult: - return value - case valueEmpty: - default: - // We have getValue here to (for example) trigger a - // ReferenceError (of the not defined variety) - // Not sure if this is the best way to error out early - // for such errors or if there is a better way - // TODO Do we still need this? - result = value.resolve() - } - } - return result -} - -func (self *_runtime) cmpl_evaluate_nodeDoWhileStatement(node *_nodeDoWhileStatement) Value { - - labels := append(self.labels, "") - self.labels = nil - - test := node.test - - result := emptyValue -resultBreak: - for { - for _, node := range node.body { - value := self.cmpl_evaluate_nodeStatement(node) - switch value.kind { - case valueResult: - switch value.evaluateBreakContinue(labels) { - case resultReturn: - return value - case resultBreak: - break resultBreak - case resultContinue: - goto resultContinue - } - case valueEmpty: - default: - result = value - } - } - resultContinue: - if !self.cmpl_evaluate_nodeExpression(test).resolve().bool() { - // Stahp: do ... while (false) - break - } - } - return result -} - -func (self *_runtime) cmpl_evaluate_nodeForInStatement(node *_nodeForInStatement) Value { - - labels := append(self.labels, "") - self.labels = nil - - source := self.cmpl_evaluate_nodeExpression(node.source) - sourceValue := source.resolve() - - switch sourceValue.kind { - case valueUndefined, valueNull: - return emptyValue - } - - sourceObject := self.toObject(sourceValue) - - into := node.into - body := node.body - - result := emptyValue - object := sourceObject - for object != nil { - enumerateValue := emptyValue - object.enumerate(false, func(name string) bool { - into := self.cmpl_evaluate_nodeExpression(into) - // In the case of: for (var abc in def) ... - if into.reference() == nil { - identifier := into.string() - // TODO Should be true or false (strictness) depending on context - into = toValue(getIdentifierReference(self, self.scope.lexical, identifier, false, -1)) - } - self.putValue(into.reference(), toValue_string(name)) - for _, node := range body { - value := self.cmpl_evaluate_nodeStatement(node) - switch value.kind { - case valueResult: - switch value.evaluateBreakContinue(labels) { - case resultReturn: - enumerateValue = value - return false - case resultBreak: - object = nil - return false - case resultContinue: - return true - } - case valueEmpty: - default: - enumerateValue = value - } - } - return true - }) - if object == nil { - break - } - object = object.prototype - if !enumerateValue.isEmpty() { - result = enumerateValue - } - } - return result -} - -func (self *_runtime) cmpl_evaluate_nodeForStatement(node *_nodeForStatement) Value { - - labels := append(self.labels, "") - self.labels = nil - - initializer := node.initializer - test := node.test - update := node.update - body := node.body - - if initializer != nil { - initialResult := self.cmpl_evaluate_nodeExpression(initializer) - initialResult.resolve() // Side-effect trigger - } - - result := emptyValue -resultBreak: - for { - if test != nil { - testResult := self.cmpl_evaluate_nodeExpression(test) - testResultValue := testResult.resolve() - if testResultValue.bool() == false { - break - } - } - for _, node := range body { - value := self.cmpl_evaluate_nodeStatement(node) - switch value.kind { - case valueResult: - switch value.evaluateBreakContinue(labels) { - case resultReturn: - return value - case resultBreak: - break resultBreak - case resultContinue: - goto resultContinue - } - case valueEmpty: - default: - result = value - } - } - resultContinue: - if update != nil { - updateResult := self.cmpl_evaluate_nodeExpression(update) - updateResult.resolve() // Side-effect trigger - } - } - return result -} - -func (self *_runtime) cmpl_evaluate_nodeIfStatement(node *_nodeIfStatement) Value { - test := self.cmpl_evaluate_nodeExpression(node.test) - testValue := test.resolve() - if testValue.bool() { - return self.cmpl_evaluate_nodeStatement(node.consequent) - } else if node.alternate != nil { - return self.cmpl_evaluate_nodeStatement(node.alternate) - } - - return emptyValue -} - -func (self *_runtime) cmpl_evaluate_nodeSwitchStatement(node *_nodeSwitchStatement) Value { - - labels := append(self.labels, "") - self.labels = nil - - discriminantResult := self.cmpl_evaluate_nodeExpression(node.discriminant) - target := node.default_ - - for index, clause := range node.body { - test := clause.test - if test != nil { - if self.calculateComparison(token.STRICT_EQUAL, discriminantResult, self.cmpl_evaluate_nodeExpression(test)) { - target = index - break - } - } - } - - result := emptyValue - if target != -1 { - for _, clause := range node.body[target:] { - for _, statement := range clause.consequent { - value := self.cmpl_evaluate_nodeStatement(statement) - switch value.kind { - case valueResult: - switch value.evaluateBreak(labels) { - case resultReturn: - return value - case resultBreak: - return emptyValue - } - case valueEmpty: - default: - result = value - } - } - } - } - - return result -} - -func (self *_runtime) cmpl_evaluate_nodeTryStatement(node *_nodeTryStatement) Value { - tryCatchValue, exception := self.tryCatchEvaluate(func() Value { - return self.cmpl_evaluate_nodeStatement(node.body) - }) - - if exception && node.catch != nil { - outer := self.scope.lexical - self.scope.lexical = self.newDeclarationStash(outer) - defer func() { - self.scope.lexical = outer - }() - // TODO If necessary, convert TypeError<runtime> => TypeError - // That, is, such errors can be thrown despite not being JavaScript "native" - // strict = false - self.scope.lexical.setValue(node.catch.parameter, tryCatchValue, false) - - // FIXME node.CatchParameter - // FIXME node.Catch - tryCatchValue, exception = self.tryCatchEvaluate(func() Value { - return self.cmpl_evaluate_nodeStatement(node.catch.body) - }) - } - - if node.finally != nil { - finallyValue := self.cmpl_evaluate_nodeStatement(node.finally) - if finallyValue.kind == valueResult { - return finallyValue - } - } - - if exception { - panic(newException(tryCatchValue)) - } - - return tryCatchValue -} - -func (self *_runtime) cmpl_evaluate_nodeWhileStatement(node *_nodeWhileStatement) Value { - - test := node.test - body := node.body - labels := append(self.labels, "") - self.labels = nil - - result := emptyValue -resultBreakContinue: - for { - if !self.cmpl_evaluate_nodeExpression(test).resolve().bool() { - // Stahp: while (false) ... - break - } - for _, node := range body { - value := self.cmpl_evaluate_nodeStatement(node) - switch value.kind { - case valueResult: - switch value.evaluateBreakContinue(labels) { - case resultReturn: - return value - case resultBreak: - break resultBreakContinue - case resultContinue: - continue resultBreakContinue - } - case valueEmpty: - default: - result = value - } - } - } - return result -} - -func (self *_runtime) cmpl_evaluate_nodeWithStatement(node *_nodeWithStatement) Value { - object := self.cmpl_evaluate_nodeExpression(node.object) - outer := self.scope.lexical - lexical := self.newObjectStash(self.toObject(object.resolve()), outer) - self.scope.lexical = lexical - defer func() { - self.scope.lexical = outer - }() - - return self.cmpl_evaluate_nodeStatement(node.body) -} |