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io.idml.utils.visitor.ExecNodeVisitor.scala Maven / Gradle / Ivy
// scalastyle:off number.of.methods
package io.idml.utils.visitor
import io.idml.ast._
import io.idml.functions.ApplyFunction
/** Implements the visitor pattern on top of the Document hierarchy */
trait ExecNodeVisitor {
this: VisitationStyle =>
trait ExecNodeContext
case class ExecDocContext(doc: Document) extends ExecNodeContext
case class ExecBlockContext(block: Block, parent: ExecDocContext) extends ExecNodeContext
trait ExecRuleContext extends ExecNodeContext {
def rule: Rule; def parent: ExecBlockContext
}
case class ExecAssignContext(rule: Assignment, parent: ExecBlockContext) extends ExecRuleContext
case class ExecReassignContext(rule: Reassignment, parent: ExecBlockContext) extends ExecRuleContext
case class ExecVariableContext(rule: Variable, parent: ExecBlockContext) extends ExecRuleContext
case class ExecPiplContext(pipl: Pipeline, parent: ExecRuleContext) extends ExecNodeContext
trait ExecExprContext extends ExecNodeContext {
def expr: Expression
def parent: ExecPiplContext
}
case class ExecAnyContext(parent: ExecPiplContext) extends ExecExprContext {
def expr: Any.type = Any
}
case class ExecIndexContext(expr: Index, parent: ExecPiplContext) extends ExecExprContext
case class ExecNavContext(expr: ExecNav, parent: ExecPiplContext) extends ExecExprContext
case class ExecPathContext(expr: Field, parent: ExecPiplContext) extends ExecExprContext
case class ExecSliceContext(expr: Slice, parent: ExecPiplContext) extends ExecExprContext
case class ExecBlockInvokeContext(expr: ApplyFunction, parent: ExecPiplContext) extends ExecExprContext
case class ExecFuncContext(expr: IdmlFunction, parent: ExecPiplContext) extends ExecExprContext
case class ExecCoalesceContext(expr: Coalesce, parent: ExecPiplContext) extends ExecExprContext
case class ExecWildcardContext(expr: Wildcard, parent: ExecPiplContext) extends ExecExprContext
case class ExecFilterContext(expr: Filter, parent: ExecPiplContext) extends ExecExprContext
case class ExecMathsContext(expr: Maths, parent: ExecPiplContext) extends ExecExprContext
case class ExecIfContext(expr: If, parent: ExecPiplContext) extends ExecExprContext
case class ExecMatchContext(expr: Match, parent: ExecPiplContext) extends ExecExprContext
case class ExecArrayContext(expr: AstArray, parent: ExecPiplContext) extends ExecExprContext
case class ExecObjectContext(expr: AstObject, parent: ExecPiplContext) extends ExecExprContext
def visit(doc: Document) {
visitDoc(ExecDocContext(doc))
}
def visitBlock(ctx: ExecBlockContext) {
ctx.block.rules foreach { rule =>
visitRule(createRuleContext(rule, ctx))
}
}
def visitRule(ctx: ExecRuleContext) {
ctx match {
case ctx: ExecAssignContext => visitAssign(ctx)
case ctx: ExecReassignContext => visitReassign(ctx)
case ctx: ExecVariableContext => visitVariable(ctx)
}
}
def createRuleContext(rule: Rule, ctx: ExecBlockContext): ExecRuleContext = {
rule match {
case rule: Assignment => ExecAssignContext(rule, ctx)
case rule: Reassignment => ExecReassignContext(rule, ctx)
case rule: Variable => ExecVariableContext(rule, ctx)
}
}
def visitAssign(ctx: ExecAssignContext) {
visitPipl(ExecPiplContext(ctx.rule.exps, ctx))
}
def visitReassign(ctx: ExecReassignContext) {
visitPipl(ExecPiplContext(ctx.rule.exps, ctx))
}
def visitVariable(ctx: ExecVariableContext): Unit = {
visitPipl(ExecPiplContext(ctx.rule.exps, ctx))
}
def visitPipl(ctx: ExecPiplContext) {
ctx.pipl.exps foreach { expr =>
visitExpr(createExprContext(expr, ctx))
}
}
def createExprContext(expr: Expression, ctx: ExecPiplContext): ExecExprContext = {
expr match {
case Any => ExecAnyContext(ctx)
case expr: Index => ExecIndexContext(expr, ctx)
case expr: ExecNav => ExecNavContext(expr, ctx)
case expr: Field => ExecPathContext(expr, ctx)
case expr: Slice => ExecSliceContext(expr, ctx)
case expr: ApplyFunction => ExecBlockInvokeContext(expr, ctx)
case expr: IdmlFunction => ExecFuncContext(expr, ctx)
case expr: Coalesce => ExecCoalesceContext(expr, ctx)
case expr: Wildcard => ExecWildcardContext(expr, ctx)
case expr: Filter => ExecFilterContext(expr, ctx)
case expr: Maths => ExecMathsContext(expr, ctx)
case expr: If => ExecIfContext(expr, ctx)
case expr: Match => ExecMatchContext(expr, ctx)
case expr: AstArray => ExecArrayContext(expr, ctx)
case expr: AstObject => ExecObjectContext(expr, ctx)
}
}
def visitExpr(ctx: ExecExprContext) {
ctx match {
case ctx: ExecAnyContext => visitAny(ctx)
case ctx: ExecIndexContext => visitIndex(ctx)
case ctx: ExecNavContext => visitNav(ctx)
case ctx: ExecPathContext => visitPath(ctx)
case ctx: ExecSliceContext => visitSlice(ctx)
case ctx: ExecBlockInvokeContext => visitBlockInvoke(ctx)
case ctx: ExecFuncContext => visitFunc(ctx)
case ctx: ExecCoalesceContext => visitCoalesce(ctx)
case ctx: ExecWildcardContext => visitWildcard(ctx)
case ctx: ExecFilterContext => visitFilter(ctx)
case ctx: ExecMathsContext => visitMaths(ctx)
case _ => ()
}
}
def visitFilter(ctx: ExecFilterContext): Unit = {}
def visitAny(ctx: ExecAnyContext) {}
def visitIndex(ctx: ExecIndexContext) {}
def visitNav(ctx: ExecNavContext) {}
def visitPath(ctx: ExecPathContext) {}
def visitSlice(ctx: ExecSliceContext) {}
def visitFunc(ctx: ExecFuncContext) {}
def visitCoalesce(ctx: ExecCoalesceContext) {}
def visitWildcard(ctx: ExecWildcardContext) {}
def visitMaths(ctx: ExecMathsContext) {}
def visitIf(ctx: ExecIfContext) {}
def visitMatch(ctx: ExecMatchContext) {}
}
// scalastyle:on number.of.methods
