Reference class

Expression that refers to an individual expression declared somewhere else in the table.

For instance, in "SELECT table.c FROM table", the "table.c" is a reference that refers to the column "c" in a table "table". In "SELECT COUNT(*) AS c, 2 * c AS d FROM table", the "c" after the "2 " is a reference that refers to the expression "COUNT()".

Inheritance
Mixed-in types
Available extensions

Constructors

Reference({String? entityName, String? schemaName, required String columnName})

Properties

allDescendants → Iterable<AstNode>
Recursively returns all descendants of this node, e.g. its children, their children and so on. The tree will be pre-order traversed.
no setterinherited
childNodes → Iterable<AstNode>
All direct children of this node.
no setteroverride
columnName → String
final
entityName → String?
Entity can be either a table or a view.
final
first ↔ Token?
The first token that appears in this node. This information is not set for all nodes.
getter/setter pairinherited
firstPosition → int
The first position of this entity, as an zero-based offset in the file it was read from.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
hasSpan → bool
Whether this entity has a source span associated with it.
no setterinherited
isSingleDoubleQuotedToken → bool
Returns whether this Reference is syntactically derived from a single identifier token wrapped in double quotes.
no setter
last ↔ Token?
The last token that appears in this node. This information is not set for all nodes.
getter/setter pairinherited
lastPosition → int
The (exclusive) last index of this entity in the source.
no setterinherited
length → int

Available on SyntacticEntity, provided by the SyntacticLengthExtension extension

The length of this entity, in characters.
no setter
optionalScope → ReferenceScope?
no setterinherited
parent ↔ AstNode?
The parent of this node, or null if this is the root node. Will be set by the analyzer after the tree has been parsed.
getter/setter pairinherited
parents → Iterable<AstNode>
Returns all parents of this node up to the root. If this node is the root, the iterable will be empty.
no setterinherited
resolved ↔ Referencable?
The resolved reference, or null if it hasn't been resolved yet.
getter/setter pairinherited
resolvedColumn → Column?
no setter
resultEntity ↔ ResultSetAvailableInStatement?
The resolved result set from the entityName.
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
schemaName → String?
An optional schema name.
final
scope ↔ ReferenceScope
The ReferenceScope, which contains available tables, column references and functions for this node.
getter/setter pairinherited
selfAndDescendants → Iterable<AstNode>
Returns an iterable that fields yields this node, followed by allDescendants.
no setterinherited
selfAndParents → Iterable<AstNode>
Returns an iterable containing this node and all parents.
no setterinherited
span → FileSpan?
The piece of text forming this syntactic entity.
no setterinherited
statementScope → StatementScope
no setterinherited
synthetic ↔ bool
Whether this entity is synthetic, meaning that it doesn't appear in the actual source.
getter/setter pairinherited

Methods

accept<A, R>(AstVisitor<A, R> visitor, A arg) → R
Calls the appropriate method on the visitor to make it recognize this node.
override
acceptWithoutArg<R>(AstVisitor<void, R> visitor) → R
Like accept, but without an argument.
inherited
contentEquals(AstNode other) → bool
Whether the content of this node is equal to the other node of the same type. The "content" refers to anything stored only in this node, children are ignored.
inherited
enclosingOfType<T extends AstNode>() → T?
Finds the first element in selfAndParents of the type T.
inherited
isChildOf(AstNode other) → bool
inherited
meta<T>() → T?
Returns the metadata of type T that might have been set on this node, or null if none was found. Nodes can have arbitrary annotations on them set via setMeta and obtained via meta. This mechanism is used to, for instance, attach variable scopes to a subtree.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
setMeta<T>(T value) → void
Sets the metadata of type T to the specified value. Nodes can have arbitrary annotations on them set via setMeta and obtained via meta. This mechanism is used to, for instance, attach variable scopes to a subtree.
inherited
setSpan(Token first, Token last) → void
Sets the AstNode.first and AstNode.last property in one go.
inherited
toSql() → String

Available on AstNode, provided by the NodeToText extension

Obtains a textual representation for AST nodes.
toString() → String
A string representation of this object.
override
transformChildren<A>(Transformer<A> transformer, A arg) → void
Transforms children of this node by invoking transformer with the argument arg.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited