Namespace packages with "urubu/"

1 files changed, 73 insertions, 0 deletions

diff --git a/src/urubu/driver/parser/spec.go b/src/urubu/driver/parser/spec.go
new file mode 100644
index 0000000..6dc7c3f
--- /dev/null
+++ b/src/urubu/driver/parser/spec.go
@@ -0,0 +1,73 @@
+package parser
+
+import spec "urubu/spec/grammar"
+
+type grammarImpl struct {
+	g *spec.CompiledGrammar
+}
+
+func NewGrammar(g *spec.CompiledGrammar) *grammarImpl {
+	return &grammarImpl{
+		g: g,
+	}
+}
+
+func (g *grammarImpl) InitialState() int {
+	return g.g.Syntactic.InitialState
+}
+
+func (g *grammarImpl) StartProduction() int {
+	return g.g.Syntactic.StartProduction
+}
+
+func (g *grammarImpl) RecoverProduction(prod int) bool {
+	return g.g.Syntactic.RecoverProductions[prod] != 0
+}
+
+func (g *grammarImpl) Action(state int, terminal int) int {
+	return g.g.Syntactic.Action[state*g.g.Syntactic.TerminalCount+terminal]
+}
+
+func (g *grammarImpl) GoTo(state int, lhs int) int {
+	return g.g.Syntactic.GoTo[state*g.g.Syntactic.NonTerminalCount+lhs]
+}
+
+func (g *grammarImpl) AlternativeSymbolCount(prod int) int {
+	return g.g.Syntactic.AlternativeSymbolCounts[prod]
+}
+
+func (g *grammarImpl) TerminalCount() int {
+	return g.g.Syntactic.TerminalCount
+}
+
+func (g *grammarImpl) SkipTerminal(terminal int) bool {
+	return g.g.Syntactic.TerminalSkip[terminal] == 1
+}
+
+func (g *grammarImpl) ErrorTrapperState(state int) bool {
+	return g.g.Syntactic.ErrorTrapperStates[state] != 0
+}
+
+func (g *grammarImpl) NonTerminal(nonTerminal int) string {
+	return g.g.Syntactic.NonTerminals[nonTerminal]
+}
+
+func (g *grammarImpl) LHS(prod int) int {
+	return g.g.Syntactic.LHSSymbols[prod]
+}
+
+func (g *grammarImpl) EOF() int {
+	return g.g.Syntactic.EOFSymbol
+}
+
+func (g *grammarImpl) Error() int {
+	return g.g.Syntactic.ErrorSymbol
+}
+
+func (g *grammarImpl) Terminal(terminal int) string {
+	return g.g.Syntactic.Terminals[terminal]
+}
+
+func (g *grammarImpl) ASTAction(prod int) []int {
+	return g.g.ASTAction.Entries[prod]
+}