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package driver
import (
mldriver "github.com/nihei9/maleeni/driver"
"github.com/nihei9/vartan/spec"
)
type gram struct {
g *spec.CompiledGrammar
}
func NewGrammar(g *spec.CompiledGrammar) *gram {
return &gram{
g: g,
}
}
func (g *gram) LexicalSpecification() mldriver.LexSpec {
return mldriver.NewLexSpec(g.g.LexicalSpecification.Maleeni.Spec)
}
func (g *gram) Class() string {
return g.g.ParsingTable.Class
}
func (g *gram) InitialState() int {
return g.g.ParsingTable.InitialState
}
func (g *gram) StartProduction() int {
return g.g.ParsingTable.StartProduction
}
func (g *gram) RecoverProduction(prod int) bool {
return g.g.ParsingTable.RecoverProductions[prod] != 0
}
func (g *gram) Action(state int, terminal int) int {
return g.g.ParsingTable.Action[state*g.g.ParsingTable.TerminalCount+terminal]
}
func (g *gram) GoTo(state int, lhs int) int {
return g.g.ParsingTable.GoTo[state*g.g.ParsingTable.NonTerminalCount+lhs]
}
func (g *gram) AlternativeSymbolCount(prod int) int {
return g.g.ParsingTable.AlternativeSymbolCounts[prod]
}
func (g *gram) TerminalCount() int {
return g.g.ParsingTable.TerminalCount
}
func (g *gram) ErrorTrapperState(state int) bool {
return g.g.ParsingTable.ErrorTrapperStates[state] != 0
}
func (g *gram) LHS(prod int) int {
return g.g.ParsingTable.LHSSymbols[prod]
}
func (g *gram) EOF() int {
return g.g.ParsingTable.EOFSymbol
}
func (g *gram) Error() int {
return g.g.ParsingTable.ErrorSymbol
}
func (g *gram) Terminal(terminal int) string {
return g.g.ParsingTable.Terminals[terminal]
}
func (g *gram) TerminalAlias(terminal int) string {
return g.g.LexicalSpecification.Maleeni.KindAliases[terminal]
}
func (g *gram) Skip(kind mldriver.KindID) bool {
return g.g.LexicalSpecification.Maleeni.Skip[kind] > 0
}
func (g *gram) LexicalKindToTerminal(kind mldriver.KindID) int {
return g.g.LexicalSpecification.Maleeni.KindToTerminal[kind]
}
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