Documentation

TreeWalkerChain

in package

• Application

implements TreeWalker

Represents a chain of tree walkers that modify an AST and finally emit output.

Tags

psalm-import-type

QueryComponent from Parser

Table of Contents

Interfaces

TreeWalker

Interface for walkers of DQL ASTs (abstract syntax trees).

Properties

$parserResult  : ParserResult

$query  : AbstractQuery

$queryComponents  : array<string, array<string, mixed>>

The query components of the original query (the "symbol table") that was produced by the Parser.

$walkers  : array<string|int, string>

The tree walkers.

Methods

__construct()  : mixed

Initializes TreeWalker with important information about the ASTs to be walked.

addTreeWalker()  : void

Adds a tree walker to the chain.

getExecutor()  : AbstractSqlExecutor

Gets an executor that can be used to execute the result of this walker.

getQueryComponents()  : array<string, array<string, mixed>>

Returns the internal queryComponents array.

setQueryComponent()  : void

Sets or overrides a query component for a given dql alias.

walkAggregateExpression()  : void

Walks down an AggregateExpression AST node.

walkArithmeticExpression()  : void

Walks down an ArithmeticExpression AST node.

walkArithmeticFactor()  : void

Walks down an ArithmeticFactor that represents an AST node.

walkArithmeticTerm()  : void

Walks down an ArithmeticTerm AST node.

walkBetweenExpression()  : void

Walks down a BetweenExpression AST node.

walkCollectionMemberExpression()  : void

Walks down a CollectionMemberExpression AST node.

walkComparisonExpression()  : void

Walks down a ComparisonExpression AST node.

walkConditionalExpression()  : void

Walk down a ConditionalExpression AST node.

walkConditionalFactor()  : void

Walks down a ConditionalFactor AST node.

walkConditionalPrimary()  : void

Walks down a ConditionalPrimary AST node.

walkConditionalTerm()  : void

Walks down a ConditionalTerm AST node.

walkDeleteClause()  : void

Walks down a DeleteClause AST node.

walkDeleteStatement()  : void

Walks down a DeleteStatement AST node.

walkEmptyCollectionComparisonExpression()  : void

Walks down an EmptyCollectionComparisonExpression AST node.

walkExistsExpression()  : void

Walks down an ExistsExpression AST node.

walkFromClause()  : void

Walks down a FromClause AST node.

walkFunction()  : void

Walks down a FunctionNode AST node.

walkGroupByClause()  : void

Walks down a GroupByClause AST node.

walkGroupByItem()  : void

Walks down a GroupByItem AST node.

walkHavingClause()  : void

Walks down a HavingClause AST node.

walkInExpression()  : void

Walks down an InExpression AST node.

walkInputParameter()  : void

Walks down an InputParameter AST node.

walkInstanceOfExpression()  : void

Walks down an InstanceOfExpression AST node.

walkJoin()  : void

Walks down a Join AST node.

walkLikeExpression()  : void

Walks down a LikeExpression AST node.

walkLiteral()  : void

Walks down a literal that represents an AST node.

walkNullComparisonExpression()  : void

Walks down a NullComparisonExpression AST node.

walkOrderByClause()  : void

Walks down an OrderByClause AST node.

walkOrderByItem()  : void

Walks down an OrderByItem AST node, thereby generating the appropriate SQL.

walkPathExpression()  : void

Walks down a PathExpression AST node.

walkQuantifiedExpression()  : void

Walks down a QuantifiedExpression AST node.

walkResultVariable()  : void

Walks down a ResultVariable that represents an AST node.

walkSelectClause()  : void

Walks down a SelectClause AST node.

walkSelectExpression()  : void

Walks down a SelectExpression AST node.

walkSelectStatement()  : void

Walks down a SelectStatement AST node.

walkSimpleArithmeticExpression()  : void

Walks down an SimpleArithmeticExpression AST node.

walkSimpleSelectClause()  : void

Walks down a SimpleSelectClause AST node.

walkSimpleSelectExpression()  : void

Walks down a SimpleSelectExpression AST node.

walkStateFieldPathExpression()  : void

Walks down a StateFieldPathExpression AST node.

walkStringPrimary()  : void

Walks down a StringPrimary that represents an AST node.

walkSubselect()  : void

Walks down a Subselect AST node.

walkSubselectFromClause()  : void

Walks down a SubselectFromClause AST node.

walkUpdateClause()  : void

Walks down an UpdateClause AST node.

walkUpdateItem()  : void

Walks down an UpdateItem AST node.

walkUpdateStatement()  : void

Walks down an UpdateStatement AST node.

walkWhereClause()  : void

Walks down a WhereClause AST node.

getWalkers()  : Generator