SymbolTable stores function blocks

parser.v

@@ -12,6 +12,7 @@ struct VarSymbolInfo {
 
 struct FuncSymbolInfo {
 	type string
+	block Block
 }
 
 struct SymbolTable {
@@ -33,7 +34,9 @@ fn (mut s SymbolTable) define_var(name string, typ string) {
       parse_error('Variable ${name} already defined in this scope')
   }
 
-    s.variable_scopes[s.variable_scopes.len-1][name] = VarSymbolInfo{type: typ}
+  s.variable_scopes[s.variable_scopes.len-1][name] = VarSymbolInfo{
+		type: typ
+	}
 }
 
 fn (mut s SymbolTable) lookup_var(name string) ?VarSymbolInfo {
@@ -49,8 +52,8 @@ fn (mut s SymbolTable) lookup_var(name string) ?VarSymbolInfo {
 	return none
 }
 
-fn (mut s SymbolTable) define_func(name string, typ string) {
-	s.functions[name] = FuncSymbolInfo{type: typ}
+fn (mut s SymbolTable) define_func(name string, typ string, block Block) {
+	s.functions[name] = FuncSymbolInfo{type: typ, block: block}
 }
 
 fn (mut s SymbolTable) lookup_func(name string) ?FuncSymbolInfo {
@@ -68,6 +71,7 @@ fn (mut s SymbolTable) is_in_global_scope() bool {
 // ------------------------------------------- Expressions
 
 type Expr = VoidExpr | BinaryExpr | IntegerLiteral | RealLiteral | BoolLiteral | Variable | TypeExpr | Function
+type LiteralExpr = IntegerLiteral | RealLiteral | BoolLiteral
 
 struct VoidExpr {}
 
@@ -333,7 +337,7 @@ fn (mut p Parser) parse_func_decl() FuncDecl {
 
 	p.symbols.variable_scopes.delete_last()
 
-	p.symbols.define_func(name_tok.text, type_tok.text)
+	p.symbols.define_func(name_tok.text, type_tok.text, block)
 
 	return FuncDecl {
 		name: name_tok.text
@@ -419,6 +423,9 @@ fn (mut p Parser) parse_program() []Stmt {
 		p.statements << p.parse_statement()
 	}
 	p.symbols.variable_scopes.delete_last()
+	$if debug {
+		dump(p.symbols.functions)
+	}
 	return p.statements
 }