Package dev.frostlake.executor

Class SQLCommandVisitor

java.lang.Object

org.antlr.v4.runtime.tree.AbstractParseTreeVisitor<Object>

dev.frostlake.parser.FrostlakeBaseVisitor<Object>

dev.frostlake.executor.SQLCommandVisitor

All Implemented Interfaces:

FrostlakeVisitor<Object>, org.antlr.v4.runtime.tree.ParseTreeVisitor<Object>

public class SQLCommandVisitor
extends FrostlakeBaseVisitor<Object>

Visitor that executes SQL commands by visiting the ANTLR parse tree. Delegates to specialized command handlers for different SQL command types.

Constructor Summary

Constructors

Constructor	Description
SQLCommandVisitor(Catalog catalog, QueryExecutor queryExecutor)

Method Summary

Modifier and Type	Method	Description
Object	executeScriptingFunctionBody(Function function, List<Object> args)	Execute a LANGUAGE SQL scalar UDF whose body is a Snowflake-Scripting block and yield the value its RETURN produced — live-verified: CREATE FUNCTION f() RETURNS INT AS $$ BEGIN RETURN 1; END $$ then SELECT f() is 1, and the block really runs (a body of BEGIN RETURN 1; RETURN 2; END yields 1, BEGIN LET x INT := 5; RETURN x * 2; END yields 10, and a body with no RETURN at all yields NULL).
String	extractStringLiteral(org.antlr.v4.runtime.tree.TerminalNode node)
ColumnDefinitionParser	getColumnParser()	The shared column/constraint parser, for the handlers that build constraints outside CREATE.
String	getOriginalText(org.antlr.v4.runtime.ParserRuleContext ctx)
ProceduralExecutor	getProceduralExecutor()
TaskScheduler	getTaskScheduler()
String	getText(FrostlakeParser.IdentifierContext ctx)
String	getText(FrostlakeParser.LoopLabelContext ctx)	A loop LABEL is its own name position: it admits INNER, which a plain identifier may not (live accepts CREATE TABLE inner yet refuses a bare FROM inner).
String	getText(FrostlakeParser.QualifiedNameContext ctx)
DataType	parseDataType(FrostlakeParser.DataTypeNameContext ctx, FrostlakeParser.TypeParametersContext typeParams)
Object	parseLiteral(FrostlakeParser.LiteralContext ctx)
String[]	qualifiedNameParts(FrostlakeParser.QualifiedNameContext ctx)	The ordered identifier parts of a qualified name (db, schema, name), read from the parse tree's identifier list — the AST-definitive way — rather than by splitting its flattened text on '.'.
Schema	resolveCurrentSchema()
void	setStreamManager(StreamManager streamManager)
void	setTaskScheduler(TaskScheduler taskScheduler)
Object	visitAlterStatement(FrostlakeParser.AlterStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.alterStatement().
Object	visitAssignmentStatement(FrostlakeParser.AssignmentStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.assignmentStatement().
Object	visitBeginEndBlock(FrostlakeParser.BeginEndBlockContext ctx)	Visit a parse tree produced by FrostlakeParser.beginEndBlock().
Object	visitBreakStatement(FrostlakeParser.BreakStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.breakStatement().
Object	visitCallStatement(FrostlakeParser.CallStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.callStatement().
Object	visitCaseStatement(FrostlakeParser.CaseStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.caseStatement().
Object	visitCloseStatement(FrostlakeParser.CloseStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.closeStatement().
Object	visitCommentStatement(FrostlakeParser.CommentStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.commentStatement().
Object	visitContinueStatement(FrostlakeParser.ContinueStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.continueStatement().
Object	visitCopyIntoStatement(FrostlakeParser.CopyIntoStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.copyIntoStatement().
Object	visitCreateStatement(FrostlakeParser.CreateStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.createStatement().
Object	visitCursorDeclaration(FrostlakeParser.CursorDeclarationContext ctx)	Visit a parse tree produced by FrostlakeParser.cursorDeclaration().
Object	visitDdlStatement(FrostlakeParser.DdlStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.ddlStatement().
Object	visitDeclarationItem(FrostlakeParser.DeclarationItemContext ctx)	Visit a parse tree produced by FrostlakeParser.declarationItem().
Object	visitDeleteStatement(FrostlakeParser.DeleteStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.deleteStatement().
Object	visitDescribeStatement(FrostlakeParser.DescribeStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.describeStatement().
Object	visitDmlStatement(FrostlakeParser.DmlStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.dmlStatement().
Object	visitDropStatement(FrostlakeParser.DropStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.dropStatement().
Object	visitExecuteImmediateStatement(FrostlakeParser.ExecuteImmediateStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.executeImmediateStatement().
Object	visitExplainStatement(FrostlakeParser.ExplainStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.explainStatement().
Object	visitFetchStatement(FrostlakeParser.FetchStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.fetchStatement().
Object	visitForStatement(FrostlakeParser.ForStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.forStatement().
Object	visitGetStatement(FrostlakeParser.GetStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.getStatement().
Object	visitGrantStatement(FrostlakeParser.GrantStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.grantStatement().
Object	visitIfStatement(FrostlakeParser.IfStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.ifStatement().
Object	visitInsertStatement(FrostlakeParser.InsertStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.insertStatement().
Object	visitLetStatement(FrostlakeParser.LetStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.letStatement().
Object	visitListStatement(FrostlakeParser.ListStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.listStatement().
Object	visitLoopStatement(FrostlakeParser.LoopStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.loopStatement().
Object	visitMergeStatement(FrostlakeParser.MergeStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.mergeStatement().
Object	visitMultiTableInsertStatement(FrostlakeParser.MultiTableInsertStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.multiTableInsertStatement().
Object	visitNullStatement(FrostlakeParser.NullStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.nullStatement().
Object	visitOpenStatement(FrostlakeParser.OpenStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.openStatement().
Object	visitProceduralStatement(FrostlakeParser.ProceduralStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.proceduralStatement().
Object	visitPutStatement(FrostlakeParser.PutStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.putStatement().
Object	visitQueryStatement(FrostlakeParser.QueryStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.queryStatement().
Object	visitRaiseStatement(FrostlakeParser.RaiseStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.raiseStatement().
Object	visitRemoveStatement(FrostlakeParser.RemoveStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.removeStatement().
Object	visitRepeatStatement(FrostlakeParser.RepeatStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.repeatStatement().
Object	visitReturnStatement(FrostlakeParser.ReturnStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.returnStatement().
Object	visitRevokeStatement(FrostlakeParser.RevokeStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.revokeStatement().
Object	visitSecurityStatement(FrostlakeParser.SecurityStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.securityStatement().
Object	visitSelectIntoStatement(FrostlakeParser.SelectIntoStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.selectIntoStatement().
Object	visitSelectStatement(FrostlakeParser.SelectStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.selectStatement().
Object	visitSessionSetStatement(FrostlakeParser.SessionSetStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.sessionSetStatement().
Object	visitSessionUnsetStatement(FrostlakeParser.SessionUnsetStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.sessionUnsetStatement().
Object	visitSetStatement(FrostlakeParser.SetStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.setStatement().
Object	visitShowStatement(FrostlakeParser.ShowStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.showStatement().
Object	visitStatement(FrostlakeParser.StatementContext ctx)	Visit a parse tree produced by FrostlakeParser.statement().
Object	visitTaskStatement(FrostlakeParser.TaskStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.taskStatement().
Object	visitTransactionStatement(FrostlakeParser.TransactionStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.transactionStatement().
Object	visitTruncateStatement(FrostlakeParser.TruncateStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.truncateStatement().
Object	visitUndropStatement(FrostlakeParser.UndropStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.undropStatement().
Object	visitUntypedDeclarationItem(FrostlakeParser.UntypedDeclarationItemContext ctx)	Visit a parse tree produced by FrostlakeParser.untypedDeclarationItem().
Object	visitUpdateStatement(FrostlakeParser.UpdateStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.updateStatement().
Object	visitUseStatement(FrostlakeParser.UseStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.useStatement().
Object	visitVariableDeclaration(FrostlakeParser.VariableDeclarationContext ctx)	Visit a parse tree produced by FrostlakeParser.variableDeclaration().
Object	visitWhileStatement(FrostlakeParser.WhileStatementContext ctx)	Visit a parse tree produced by FrostlakeParser.whileStatement().

Methods inherited from class dev.frostlake.parser.FrostlakeBaseVisitor

visitAdditiveExpr, visitAfterClause, visitAggregateFunction, visitAggregationPolicyClause, visitAliasName, visitAlterAddColumnItem, visitAlterColumnItem, visitAlterColumnItemAction, visitAndExpr, visitAnsiSubstringExpr, visitArrayAccessExpr, visitArrayElement, visitAsofMatchCondition, visitAssignment, visitAssignmentList, visitAsyncStatement, visitAwaitStatement, visitBetweenExpr, visitBindVarExpr, visitBodyDefinition, visitBooleanExprList, visitBooleanValue, visitBulkObjectType, visitBulkScope, visitCallArgument, visitCallArguments, visitCaseExpr, visitCastExpr, visitCastExpr2, visitChangesClause, visitCheckConstraint, visitCheckEnforcement, visitClusterByClause, visitCollateClause, visitCollateExpr, visitCollateFuncExpr, visitColumnCommentClause, visitColumnConstraint, visitColumnDef, visitColumnDefName, visitColumnList, visitColumnListOptional, visitColumnOrConstraint, visitColumnTagAction, visitCommentClause, visitComparisonExpr, visitComputePoolAction, visitComputePoolOption, visitComputePoolSetOption, visitComputePoolUnsetKey, visitComputePoolWorkloadType, visitConcatExpr, visitConnectByClause, visitConnectByPredicate, visitConnectByRootExpr, visitConstraintName, visitConstraintProperty, visitContactAssignment, visitContactProperty, visitContactPurpose, visitCopyFormatOption, visitCopyFormatOptions, visitCopyGrants, visitCopyIntoStageClause, visitCopyIntoTableClause, visitCopyOptionValue, visitCopyRestOfStatement, visitCopySource, visitCopyStatement, visitCopyTableSource, visitCopyTransformation, visitCopyTransformItem, visitCortexSearchAction, visitCortexSearchOption, visitCteDefinition, visitCurrentDateExpr, visitCurrentTimeExpr, visitCurrentTimestampExpr, visitCurrentUserExpr, visitCursorSource, visitDatabaseAction, visitDataTypeList, visitDataTypeName, visitDateTimeLiteralType, visitDeclareSection, visitDefaultExpression, visitDropBehavior, visitDynamicTableAction, visitDynamicTableOption, visitDynamicTableOptions, visitDynamicTableProperty, visitDynamicTableSetting, visitEscapeOperand, visitExceptionCondition, visitExceptionHandler, visitExceptionSection, visitExecuteAsClause, visitExistsExpr, visitExpressionList, visitExprItem, visitExprTuple, visitExtractFromExpr, visitFetchClause, visitFieldAccessExpr, visitFileFormatAction, visitFlattenArgList, visitFlowChain, visitFrameBound, visitFunctionArg, visitFunctionArgList, visitFunctionCallExpr, visitFunctionCallMixedArgsExpr, visitFunctionCallNamedArgsExpr, visitFunctionCallStarExpr, visitFunctionName, visitFunctionOption, visitGlobalPrivilege, visitGlobalPrivilegeList, visitGroupByClause, visitGroupByColumnList, visitGroupByElement, visitGroupingSet, visitGroupingSetList, visitHandlerClause, visitHavingClause, visitIdentifier, visitIdentifierList, visitIdentityProperties, visitIdentityWordOption, visitIf_exists, visitIf_not_exists, visitImportsClause, visitInListExpr, visitInSubqueryExpr, visitIntervalExpr, visitIntervalStringExpr, visitIntervalUnit, visitIntervalUnitSingular, visitIntoTarget, visitIntoTargetList, visitIsDistinctExpr, visitIsNullExpr, visitJoinClause, visitJoinPolicyClause, visitJoinType, visitJsonArrayExpr, visitJsonArrayLiteral, visitJsonKeyValuePair, visitJsonObjectEntry, visitJsonObjectExpr, visitJsonObjectLiteral, visitLambdaFunction, visitLambdaParam, visitLambdaParams, visitLanguageClause, visitLikeAnyAllExpr, visitLikeExpr, visitLimitClause, visitLiteral, visitLiteralExpr, visitLoopLabel, visitMaskingPolicyAction, visitMaterializedViewAction, visitMergeClause, visitMergeInsertColumn, visitMergeInsertColumnList, visitMergeSourceSubquery, visitMergeSourceTable, visitMergeSourceValues, visitMultiInsertElse, visitMultiInsertInto, visitMultiInsertWhen, visitMultiplicativeExpr, visitNamedArgument, visitNamedArgumentList, visitNamePart, visitNameStartPart, visitNonJoinKeywordIdentifier, visitNotExpr, visitNullHandling, visitNullHandlingClause, visitObjectAccessExpr, visitObjectName, visitObjectStarItem, visitObjectType, visitOptionKey, visitOr_replace, visitOrderByClause, visitOrderItem, visitOrExpr, visitOuterJoinColumnExpr, visitOverClause, visitPackagesClause, visitParameterDef, visitParameterList, visitParenExpr, visitParenOption, visitParenOptionList, visitPartitionByClause, visitPipeAction, visitPipeOption, visitPipeOptions, visitPipeRefreshOption, visitPipeSetOption, visitPivotAlias, visitPivotClause, visitPivotInList, visitPivotValue, visitPivotValueList, visitPositionalBindExpr, visitPositionInExpr, visitPriorExpr, visitPrivilege, visitPrivilegeList, visitProjectionPolicyAction, visitQualifiedName, visitQualifiedNameExpr, visitQualifiedStarItem, visitQualifyClause, visitQuantifiedComparisonExpr, visitQuantifier, visitReferentialAction, visitReferentialActions, visitReferentialOption, visitRelyOption, visitReturnType, visitRlikeExpr, visitRoleAction, visitRoutineAlterAction, visitRoutineSetProperty, visitRoutineUnsetProperty, visitRowAccessPolicyAction, visitRowAccessPolicyClause, visitRuntimeVersionClause, visitSampleClause, visitSampleMethod, visitSampleSeed, visitScalarSubqueryExpr, visitScheduleClause, visitSchemaAction, visitSearchedCaseExpr, visitSearchOptimizationDrop, visitSearchOptimizationTarget, visitSelectClause, visitSelectList, visitSelectOperand, visitSequenceAction, visitSequenceOption, visitSequenceOptions, visitSessionAction, visitSessionAssignment, visitSessionParameter, visitSessionVarExpr, visitSetOperator, visitShowPrivilege, visitShowTail, visitSignedInteger, visitSimpleCaseExpr, visitSpreadArgument, visitSqlScript, visitSqlStatement, visitStageAction, visitStageFileOption, visitStageOption, visitStagePath, visitStageProperties, visitStageQueryParam, visitStageQueryParams, visitStageRef, visitStarArgumentModifier, visitStarItem, visitStarModifier, visitStarQualifiedName, visitStarRenameItem, visitStarReplaceItem, visitStartWithClause, visitStatementList, visitStreamAction, visitStreamOption, visitStreamOptions, visitStringLiteralList, visitStructuredField, visitStructuredFieldList, visitStructuredFieldName, visitSystemFuncExpr, visitSystemStreamHasDataExpr, visitSystemUserTaskCancelExpr, visitTableAction, visitTableConstraint, visitTableExpression, visitTableFunctionExpr, visitTableQualifiedName, visitTableReference, visitTableSetProperty, visitTableSource, visitTableTailOption, visitTableUnsetProperties, visitTagAction, visitTagAssign, visitTagAssignment, visitTagList, visitTagProperties, visitTagSet, visitTagUnset, visitTaskAction, visitTaskBody, visitTaskOption, visitTaskOptions, visitTaskParamName, visitTimeTravelClause, visitTimeTravelPoint, visitTopClause, visitTransactionName, visitTryCastExpr, visitTupleInFlatListExpr, visitTupleInListExpr, visitTupleInSubqueryExpr, visitTupleRow, visitTypedDateTimeLiteralExpr, visitTypedLiteralArgExpr, visitTypeParameters, visitUnaryExpr, visitUnpivotClause, visitUnpivotColumnList, visitUnpivotNulls, visitUserAction, visitUserProperties, visitUserProperty, visitUserUnsetProperty, visitUsingColumnList, visitValueExpr, visitValueList, visitValueTuple, visitValueTupleList, visitVariantPathKey, visitViewAction, visitViewColumnDef, visitViewColumnList, visitViewProperty, visitVolatilityClause, visitWarehouseAction, visitWarehouseClause, visitWarehouseProperties, visitWarehouseProperty, visitWarehouseUnsetProperty, visitWhenClause, visitWhereClause, visitWindowFrame, visitWithClause, visitWithinGroupClause

Methods inherited from class org.antlr.v4.runtime.tree.AbstractParseTreeVisitor

aggregateResult, defaultResult, shouldVisitNextChild, visit, visitChildren, visitErrorNode, visitTerminal

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.antlr.v4.runtime.tree.ParseTreeVisitor

visit, visitChildren, visitErrorNode, visitTerminal

Constructor Details

SQLCommandVisitor

public SQLCommandVisitor(Catalog catalog,
 QueryExecutor queryExecutor)

Method Details

setStreamManager

public void setStreamManager(StreamManager streamManager)

setTaskScheduler

public void setTaskScheduler(TaskScheduler taskScheduler)

getTaskScheduler

public TaskScheduler getTaskScheduler()

getColumnParser

public ColumnDefinitionParser getColumnParser()

The shared column/constraint parser, for the handlers that build constraints outside CREATE.

visitStatement

public Object visitStatement(FrostlakeParser.StatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.statement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitStatement in interface FrostlakeVisitor<Object>

Overrides:

visitStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitCreateStatement

public Object visitCreateStatement(FrostlakeParser.CreateStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.createStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitCreateStatement in interface FrostlakeVisitor<Object>

Overrides:

visitCreateStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitDropStatement

public Object visitDropStatement(FrostlakeParser.DropStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.dropStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitDropStatement in interface FrostlakeVisitor<Object>

Overrides:

visitDropStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitAlterStatement

public Object visitAlterStatement(FrostlakeParser.AlterStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.alterStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitAlterStatement in interface FrostlakeVisitor<Object>

Overrides:

visitAlterStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitUseStatement

public Object visitUseStatement(FrostlakeParser.UseStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.useStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitUseStatement in interface FrostlakeVisitor<Object>

Overrides:

visitUseStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitUndropStatement

public Object visitUndropStatement(FrostlakeParser.UndropStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.undropStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitUndropStatement in interface FrostlakeVisitor<Object>

Overrides:

visitUndropStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitExplainStatement

public Object visitExplainStatement(FrostlakeParser.ExplainStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.explainStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitExplainStatement in interface FrostlakeVisitor<Object>

Overrides:

visitExplainStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitCommentStatement

public Object visitCommentStatement(FrostlakeParser.CommentStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.commentStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitCommentStatement in interface FrostlakeVisitor<Object>

Overrides:

visitCommentStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitTruncateStatement

public Object visitTruncateStatement(FrostlakeParser.TruncateStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.truncateStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitTruncateStatement in interface FrostlakeVisitor<Object>

Overrides:

visitTruncateStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitTransactionStatement

public Object visitTransactionStatement(FrostlakeParser.TransactionStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.transactionStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitTransactionStatement in interface FrostlakeVisitor<Object>

Overrides:

visitTransactionStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitSecurityStatement

public Object visitSecurityStatement(FrostlakeParser.SecurityStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.securityStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitSecurityStatement in interface FrostlakeVisitor<Object>

Overrides:

visitSecurityStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitTaskStatement

public Object visitTaskStatement(FrostlakeParser.TaskStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.taskStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitTaskStatement in interface FrostlakeVisitor<Object>

Overrides:

visitTaskStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitGrantStatement

public Object visitGrantStatement(FrostlakeParser.GrantStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.grantStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitGrantStatement in interface FrostlakeVisitor<Object>

Overrides:

visitGrantStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitRevokeStatement

public Object visitRevokeStatement(FrostlakeParser.RevokeStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.revokeStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitRevokeStatement in interface FrostlakeVisitor<Object>

Overrides:

visitRevokeStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitListStatement

public Object visitListStatement(FrostlakeParser.ListStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.listStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitListStatement in interface FrostlakeVisitor<Object>

Overrides:

visitListStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitPutStatement

public Object visitPutStatement(FrostlakeParser.PutStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.putStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitPutStatement in interface FrostlakeVisitor<Object>

Overrides:

visitPutStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitGetStatement

public Object visitGetStatement(FrostlakeParser.GetStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.getStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitGetStatement in interface FrostlakeVisitor<Object>

Overrides:

visitGetStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitRemoveStatement

public Object visitRemoveStatement(FrostlakeParser.RemoveStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.removeStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitRemoveStatement in interface FrostlakeVisitor<Object>

Overrides:

visitRemoveStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitDdlStatement

public Object visitDdlStatement(FrostlakeParser.DdlStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.ddlStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitDdlStatement in interface FrostlakeVisitor<Object>

Overrides:

visitDdlStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitDmlStatement

public Object visitDmlStatement(FrostlakeParser.DmlStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.dmlStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitDmlStatement in interface FrostlakeVisitor<Object>

Overrides:

visitDmlStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitInsertStatement

public Object visitInsertStatement(FrostlakeParser.InsertStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.insertStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitInsertStatement in interface FrostlakeVisitor<Object>

Overrides:

visitInsertStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitMultiTableInsertStatement

public Object visitMultiTableInsertStatement(FrostlakeParser.MultiTableInsertStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.multiTableInsertStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitMultiTableInsertStatement in interface FrostlakeVisitor<Object>

Overrides:

visitMultiTableInsertStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitUpdateStatement

public Object visitUpdateStatement(FrostlakeParser.UpdateStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.updateStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitUpdateStatement in interface FrostlakeVisitor<Object>

Overrides:

visitUpdateStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitDeleteStatement

public Object visitDeleteStatement(FrostlakeParser.DeleteStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.deleteStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitDeleteStatement in interface FrostlakeVisitor<Object>

Overrides:

visitDeleteStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitMergeStatement

public Object visitMergeStatement(FrostlakeParser.MergeStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.mergeStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitMergeStatement in interface FrostlakeVisitor<Object>

Overrides:

visitMergeStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitCopyIntoStatement

public Object visitCopyIntoStatement(FrostlakeParser.CopyIntoStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.copyIntoStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitCopyIntoStatement in interface FrostlakeVisitor<Object>

Overrides:

visitCopyIntoStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitQueryStatement

public Object visitQueryStatement(FrostlakeParser.QueryStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.queryStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitQueryStatement in interface FrostlakeVisitor<Object>

Overrides:

visitQueryStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitSelectStatement

public Object visitSelectStatement(FrostlakeParser.SelectStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.selectStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitSelectStatement in interface FrostlakeVisitor<Object>

Overrides:

visitSelectStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitShowStatement

public Object visitShowStatement(FrostlakeParser.ShowStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.showStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitShowStatement in interface FrostlakeVisitor<Object>

Overrides:

visitShowStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitDescribeStatement

public Object visitDescribeStatement(FrostlakeParser.DescribeStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.describeStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitDescribeStatement in interface FrostlakeVisitor<Object>

Overrides:

visitDescribeStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitProceduralStatement

public Object visitProceduralStatement(FrostlakeParser.ProceduralStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.proceduralStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitProceduralStatement in interface FrostlakeVisitor<Object>

Overrides:

visitProceduralStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitDeclarationItem

public Object visitDeclarationItem(FrostlakeParser.DeclarationItemContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.declarationItem().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitDeclarationItem in interface FrostlakeVisitor<Object>

Overrides:

visitDeclarationItem in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitUntypedDeclarationItem

public Object visitUntypedDeclarationItem(FrostlakeParser.UntypedDeclarationItemContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.untypedDeclarationItem().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitUntypedDeclarationItem in interface FrostlakeVisitor<Object>

Overrides:

visitUntypedDeclarationItem in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitVariableDeclaration

public Object visitVariableDeclaration(FrostlakeParser.VariableDeclarationContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.variableDeclaration().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitVariableDeclaration in interface FrostlakeVisitor<Object>

Overrides:

visitVariableDeclaration in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitCursorDeclaration

public Object visitCursorDeclaration(FrostlakeParser.CursorDeclarationContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.cursorDeclaration().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitCursorDeclaration in interface FrostlakeVisitor<Object>

Overrides:

visitCursorDeclaration in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitSetStatement

public Object visitSetStatement(FrostlakeParser.SetStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.setStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitSetStatement in interface FrostlakeVisitor<Object>

Overrides:

visitSetStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitSessionSetStatement

public Object visitSessionSetStatement(FrostlakeParser.SessionSetStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.sessionSetStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitSessionSetStatement in interface FrostlakeVisitor<Object>

Overrides:

visitSessionSetStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitSessionUnsetStatement

public Object visitSessionUnsetStatement(FrostlakeParser.SessionUnsetStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.sessionUnsetStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitSessionUnsetStatement in interface FrostlakeVisitor<Object>

Overrides:

visitSessionUnsetStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitLetStatement

public Object visitLetStatement(FrostlakeParser.LetStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.letStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitLetStatement in interface FrostlakeVisitor<Object>

Overrides:

visitLetStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitAssignmentStatement

public Object visitAssignmentStatement(FrostlakeParser.AssignmentStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.assignmentStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitAssignmentStatement in interface FrostlakeVisitor<Object>

Overrides:

visitAssignmentStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitOpenStatement

public Object visitOpenStatement(FrostlakeParser.OpenStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.openStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitOpenStatement in interface FrostlakeVisitor<Object>

Overrides:

visitOpenStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitFetchStatement

public Object visitFetchStatement(FrostlakeParser.FetchStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.fetchStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitFetchStatement in interface FrostlakeVisitor<Object>

Overrides:

visitFetchStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitCloseStatement

public Object visitCloseStatement(FrostlakeParser.CloseStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.closeStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitCloseStatement in interface FrostlakeVisitor<Object>

Overrides:

visitCloseStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitSelectIntoStatement

public Object visitSelectIntoStatement(FrostlakeParser.SelectIntoStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.selectIntoStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitSelectIntoStatement in interface FrostlakeVisitor<Object>

Overrides:

visitSelectIntoStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitIfStatement

public Object visitIfStatement(FrostlakeParser.IfStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.ifStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitIfStatement in interface FrostlakeVisitor<Object>

Overrides:

visitIfStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitCaseStatement

public Object visitCaseStatement(FrostlakeParser.CaseStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.caseStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitCaseStatement in interface FrostlakeVisitor<Object>

Overrides:

visitCaseStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitLoopStatement

public Object visitLoopStatement(FrostlakeParser.LoopStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.loopStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitLoopStatement in interface FrostlakeVisitor<Object>

Overrides:

visitLoopStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitWhileStatement

public Object visitWhileStatement(FrostlakeParser.WhileStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.whileStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitWhileStatement in interface FrostlakeVisitor<Object>

Overrides:

visitWhileStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitForStatement

public Object visitForStatement(FrostlakeParser.ForStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.forStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitForStatement in interface FrostlakeVisitor<Object>

Overrides:

visitForStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitRepeatStatement

public Object visitRepeatStatement(FrostlakeParser.RepeatStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.repeatStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitRepeatStatement in interface FrostlakeVisitor<Object>

Overrides:

visitRepeatStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitReturnStatement

public Object visitReturnStatement(FrostlakeParser.ReturnStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.returnStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitReturnStatement in interface FrostlakeVisitor<Object>

Overrides:

visitReturnStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitBreakStatement

public Object visitBreakStatement(FrostlakeParser.BreakStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.breakStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitBreakStatement in interface FrostlakeVisitor<Object>

Overrides:

visitBreakStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitContinueStatement

public Object visitContinueStatement(FrostlakeParser.ContinueStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.continueStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitContinueStatement in interface FrostlakeVisitor<Object>

Overrides:

visitContinueStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitNullStatement

public Object visitNullStatement(FrostlakeParser.NullStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.nullStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitNullStatement in interface FrostlakeVisitor<Object>

Overrides:

visitNullStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitRaiseStatement

public Object visitRaiseStatement(FrostlakeParser.RaiseStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.raiseStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitRaiseStatement in interface FrostlakeVisitor<Object>

Overrides:

visitRaiseStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitCallStatement

public Object visitCallStatement(FrostlakeParser.CallStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.callStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitCallStatement in interface FrostlakeVisitor<Object>

Overrides:

visitCallStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitExecuteImmediateStatement

public Object visitExecuteImmediateStatement(FrostlakeParser.ExecuteImmediateStatementContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.executeImmediateStatement().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitExecuteImmediateStatement in interface FrostlakeVisitor<Object>

Overrides:

visitExecuteImmediateStatement in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitBeginEndBlock

public Object visitBeginEndBlock(FrostlakeParser.BeginEndBlockContext ctx)

Description copied from class: FrostlakeBaseVisitor

Visit a parse tree produced by FrostlakeParser.beginEndBlock().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitBeginEndBlock in interface FrostlakeVisitor<Object>

Overrides:

visitBeginEndBlock in class FrostlakeBaseVisitor<Object>

Parameters:

ctx - the parse tree

Returns:

the visitor result

getText

public String getText(FrostlakeParser.IdentifierContext ctx)

getText

public String getText(FrostlakeParser.LoopLabelContext ctx)

A loop LABEL is its own name position: it admits INNER, which a plain identifier may not (live accepts CREATE TABLE inner yet refuses a bare FROM inner). The keyword form has no quoting to strip, so it folds the same way an unquoted identifier does.

Parameters:

ctx - the loop-label parse tree — a plain identifier or the bare keyword form

Returns:

the canonical label name: identifiers fold like any identifier, keywords uppercase

getText

public String getText(FrostlakeParser.QualifiedNameContext ctx)

qualifiedNameParts

public String[] qualifiedNameParts(FrostlakeParser.QualifiedNameContext ctx)

The ordered identifier parts of a qualified name (db, schema, name), read from the parse tree's identifier list — the AST-definitive way — rather than by splitting its flattened text on '.'. Correct even when an identifier is double-quoted and itself contains a dot (which getText(qn).split("\\.") would mis-split).

Parameters:

ctx - the qualified-name parse tree

Returns:

the canonical name parts in source order, one element per dotted level

extractStringLiteral

public String extractStringLiteral(org.antlr.v4.runtime.tree.TerminalNode node)

getOriginalText

public String getOriginalText(org.antlr.v4.runtime.ParserRuleContext ctx)

parseDataType

public DataType parseDataType(FrostlakeParser.DataTypeNameContext ctx,
 FrostlakeParser.TypeParametersContext typeParams)

parseLiteral

public Object parseLiteral(FrostlakeParser.LiteralContext ctx)

resolveCurrentSchema

public Schema resolveCurrentSchema()

getProceduralExecutor

public ProceduralExecutor getProceduralExecutor()

executeScriptingFunctionBody

public Object executeScriptingFunctionBody(Function function,
 List<Object> args)

Execute a LANGUAGE SQL scalar UDF whose body is a Snowflake-Scripting block and yield the value its RETURN produced — live-verified: CREATE FUNCTION f() RETURNS INT AS $$ BEGIN RETURN 1; END $$ then SELECT f() is 1, and the block really runs (a body of BEGIN RETURN 1; RETURN 2; END yields 1, BEGIN LET x INT := 5; RETURN x * 2; END yields 10, and a body with no RETURN at all yields NULL).

Shares every mechanism with the stored-procedure CALL path above — bind the arguments as declared variables, parse the body with the engine's own lexer/parser, visit its statements, read the RETURN — but differs in the two ways a FUNCTION differs from a PROCEDURE:

• the scope is ISOLATED, because a function is its own execution context: it cannot see a calling procedure's variables, and its own must not touch them (live-verified both ways);
• the shared return state is saved and put back, because this body runs in the MIDDLE of evaluating an enclosing block's expression — consuming its own RETURN must not look to that block like a RETURN of its own.

Parameters:

function - the SQL UDF whose body is the Snowflake-Scripting block to run

args - the already-evaluated argument values, bound positionally to the declared parameters

Returns:

the value the body's RETURN produced, or null when the body never RETURNs