本文整理匯總了Golang中github.com/serulian/compiler/graphs/scopegraph/proto.ScopeInfo.GetIsValid方法的典型用法代碼示例。如果您正苦於以下問題:Golang ScopeInfo.GetIsValid方法的具體用法?Golang ScopeInfo.GetIsValid怎麽用?Golang ScopeInfo.GetIsValid使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/serulian/compiler/graphs/scopegraph/proto.ScopeInfo
的用法示例。
在下文中一共展示了ScopeInfo.GetIsValid方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: scopeDeclaredValue
// scopeDeclaredValue scopes a declared value (variable statement, variable member, type field).
func (sb *scopeBuilder) scopeDeclaredValue(node compilergraph.GraphNode, title string, option requiresInitializerOption, exprPredicate compilergraph.Predicate, context scopeContext) proto.ScopeInfo {
var exprScope *proto.ScopeInfo = nil
exprNode, hasExpression := node.TryGetNode(exprPredicate)
if hasExpression {
// Scope the expression.
exprScope = sb.getScope(exprNode, context)
if !exprScope.GetIsValid() {
return newScope().Invalid().GetScope()
}
}
// Load the declared type, if any.
declaredType, hasDeclaredType := sb.getDeclaredVariableType(node)
if !hasDeclaredType {
if exprScope == nil {
panic("Somehow ended up with no declared type and no expr scope")
}
return newScope().Valid().AssignableResolvedTypeOf(exprScope).GetScope()
}
// Compare against the type of the expression.
if hasExpression {
exprType := exprScope.ResolvedTypeRef(sb.sg.tdg)
if serr := exprType.CheckSubTypeOf(declaredType); serr != nil {
sb.decorateWithError(node, "%s '%s' has declared type '%v': %v", title, node.Get(parser.NodeVariableStatementName), declaredType, serr)
return newScope().Invalid().GetScope()
}
} else if option == requiresInitializer {
// Make sure if the type is non-nullable that there is an expression.
if !declaredType.IsNullable() {
sb.decorateWithError(node, "%s '%s' must have explicit initializer as its type '%v' is non-nullable", title, node.Get(parser.NodeVariableStatementName), declaredType)
return newScope().Invalid().Assignable(declaredType).GetScope()
}
}
return newScope().Valid().Assignable(declaredType).GetScope()
}