Integrate public as bindata optionally (#293)

* Dropped unused codekit config

* Integrated dynamic and static bindata for public

* Ignore public bindata

* Add a general generate make task

* Integrated flexible public assets into web command

* Updated vendoring, added all missiong govendor deps

* Made the linter happy with the bindata and dynamic code

* Moved public bindata definition to modules directory

* Ignoring the new bindata path now

* Updated to the new public modules import path

* Updated public bindata command and drop the new prefix

vendor/github.com/pingcap/tidb/ast/ast.go

@@ -0,0 +1,189 @@
+// Copyright 2015 PingCAP, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package ast is the abstract syntax tree parsed from a SQL statement by parser.
+// It can be analysed and transformed by optimizer.
+package ast
+
+import (
+	"github.com/pingcap/tidb/context"
+	"github.com/pingcap/tidb/model"
+	"github.com/pingcap/tidb/util/types"
+)
+
+// Node is the basic element of the AST.
+// Interfaces embed Node should have 'Node' name suffix.
+type Node interface {
+	// Accept accepts Visitor to visit itself.
+	// The returned node should replace original node.
+	// ok returns false to stop visiting.
+	//
+	// Implementation of this method should first call visitor.Enter,
+	// assign the returned node to its method receiver, if skipChildren returns true,
+	// children should be skipped. Otherwise, call its children in particular order that
+	// later elements depends on former elements. Finally, return visitor.Leave.
+	Accept(v Visitor) (node Node, ok bool)
+	// Text returns the original text of the element.
+	Text() string
+	// SetText sets original text to the Node.
+	SetText(text string)
+}
+
+// Flags indicates whether an expression contains certain types of expression.
+const (
+	FlagConstant       uint64 = 0
+	FlagHasParamMarker uint64 = 1 << iota
+	FlagHasFunc
+	FlagHasReference
+	FlagHasAggregateFunc
+	FlagHasSubquery
+	FlagHasVariable
+	FlagHasDefault
+)
+
+// ExprNode is a node that can be evaluated.
+// Name of implementations should have 'Expr' suffix.
+type ExprNode interface {
+	// Node is embeded in ExprNode.
+	Node
+	// SetType sets evaluation type to the expression.
+	SetType(tp *types.FieldType)
+	// GetType gets the evaluation type of the expression.
+	GetType() *types.FieldType
+	// SetValue sets value to the expression.
+	SetValue(val interface{})
+	// GetValue gets value of the expression.
+	GetValue() interface{}
+	// SetDatum sets datum to the expression.
+	SetDatum(datum types.Datum)
+	// GetDatum gets datum of the expression.
+	GetDatum() *types.Datum
+	// SetFlag sets flag to the expression.
+	// Flag indicates whether the expression contains
+	// parameter marker, reference, aggregate function...
+	SetFlag(flag uint64)
+	// GetFlag returns the flag of the expression.
+	GetFlag() uint64
+}
+
+// FuncNode represents function call expression node.
+type FuncNode interface {
+	ExprNode
+	functionExpression()
+}
+
+// StmtNode represents statement node.
+// Name of implementations should have 'Stmt' suffix.
+type StmtNode interface {
+	Node
+	statement()
+}
+
+// DDLNode represents DDL statement node.
+type DDLNode interface {
+	StmtNode
+	ddlStatement()
+}
+
+// DMLNode represents DML statement node.
+type DMLNode interface {
+	StmtNode
+	dmlStatement()
+}
+
+// ResultField represents a result field which can be a column from a table,
+// or an expression in select field. It is a generated property during
+// binding process. ResultField is the key element to evaluate a ColumnNameExpr.
+// After resolving process, every ColumnNameExpr will be resolved to a ResultField.
+// During execution, every row retrieved from table will set the row value to
+// ResultFields of that table, so ColumnNameExpr resolved to that ResultField can be
+// easily evaluated.
+type ResultField struct {
+	Column       *model.ColumnInfo
+	ColumnAsName model.CIStr
+	Table        *model.TableInfo
+	TableAsName  model.CIStr
+	DBName       model.CIStr
+
+	// The expression for the result field. If it is generated from a select field, it would
+	// be the expression of that select field, otherwise the type would be ValueExpr and value
+	// will be set for every retrieved row.
+	Expr      ExprNode
+	TableName *TableName
+}
+
+// Row represents a single row from Recordset.
+type Row struct {
+	Data []types.Datum
+}
+
+// RecordSet is an abstract result set interface to help get data from Plan.
+type RecordSet interface {
+
+	// Fields gets result fields.
+	Fields() (fields []*ResultField, err error)
+
+	// Next returns the next row, nil row means there is no more to return.
+	Next() (row *Row, err error)
+
+	// Close closes the underlying iterator, call Next after Close will
+	// restart the iteration.
+	Close() error
+}
+
+// ResultSetNode interface has ResultFields property which is computed and set by
+// optimizer.InfoBinder during binding process. Implementations include SelectStmt,
+// SubqueryExpr, TableSource, TableName and Join.
+type ResultSetNode interface {
+	Node
+	// GetResultFields gets result fields of the result set node.
+	GetResultFields() []*ResultField
+	// SetResultFields sets result fields of the result set node.
+	SetResultFields(fields []*ResultField)
+}
+
+// Statement is an interface for SQL execution.
+// NOTE: all Statement implementations must be safe for
+// concurrent using by multiple goroutines.
+// If the Exec method requires any Execution domain local data,
+// they must be held out of the implementing instance.
+type Statement interface {
+	// Explain gets the execution plans.
+	//Explain(ctx context.Context, w format.Formatter)
+
+	// IsDDL shows whether the statement is an DDL operation.
+	IsDDL() bool
+
+	// OriginText gets the origin SQL text.
+	OriginText() string
+
+	// SetText sets the executive SQL text.
+	SetText(text string)
+
+	// Exec executes SQL and gets a Recordset.
+	Exec(ctx context.Context) (RecordSet, error)
+}
+
+// Visitor visits a Node.
+type Visitor interface {
+	// Enter is called before children nodes are visited.
+	// The returned node must be the same type as the input node n.
+	// skipChildren returns true means children nodes should be skipped,
+	// this is useful when work is done in Enter and there is no need to visit children.
+	Enter(n Node) (node Node, skipChildren bool)
+	// Leave is called after children nodes have been visited.
+	// The returned node's type can be different from the input node if it is a ExprNode,
+	// Non-expression node must be the same type as the input node n.
+	// ok returns false to stop visiting.
+	Leave(n Node) (node Node, ok bool)
+}