Actual modules and core

1 files changed, 37 insertions, 0 deletions

diff --git a/pkg/lang/compiler/scope/scope_chain.go b/pkg/lang/compiler/scope/scope_chain.go
index f386017..0c8f5cf 100644
--- a/pkg/lang/compiler/scope/scope_chain.go
+++ b/pkg/lang/compiler/scope/scope_chain.go
@@ -160,6 +160,35 @@ func (sc *ScopeChain) DeclareTemporary() int {
 	return len(sc.Current().variableSymbols) // :)
 }
 
+func (sc *ScopeChain) DeclareGlobal(name, module, author string) bool {
+	if _, ok := sc.nameToSymbol[name]; ok {
+		return false
+	}
+
+	current := sc.Current()
+	indexInScope := len(current.globalSymbols)
+
+	symbolID := SymbolID{
+		symbolKind:   SymbolKindGlobal,
+		scopeID:      sc.CurrentScopeID(),
+		indexInScope: indexInScope,
+	}
+
+	globalID := fmt.Sprintf("%s:%s:%s", author, module, name)
+
+	// Declare the symbol in the current scope.
+	current.globalSymbols = append(current.globalSymbols, Symbol[SymbolGlobal]{
+		name: name,
+		data: SymbolGlobal{
+			id: globalID,
+		},
+	})
+
+	sc.nameToSymbol[name] = symbolID
+
+	return true
+}
+
 func (sc *ScopeChain) CreateAnonymousFunctionSubUnit() code.Marker {
 	fnScope := sc.CurrentFunction()
 
@@ -242,3 +271,11 @@ func (sc *ScopeChain) GetEnv(id SymbolID) Symbol[SymbolEnv] {
 		},
 	}
 }
+
+func (sc *ScopeChain) GetGlobal(id SymbolID) Symbol[SymbolGlobal] {
+	if id.symbolKind != SymbolKindGlobal {
+		panic("incorrect symbol id kind given")
+	}
+
+	return sc.symbolScopes[id.scopeID].globalSymbols[id.indexInScope]
+}