feat: add initial support for import, provide minimal fmt (#6)

The `import` statement is now parsed. It only provides minimal
support for the `fmt` package (only `Println` symbol is defined).

This should be sufficient to pass a few tests.

Full support of package namespaces, source and binary imports will be
supported later, based on this work.

1 files changed, 15 insertions, 0 deletions

diff --git a/parser/package.go b/parser/package.go
new file mode 100644
index 0000000..f03c59f
--- /dev/null
+++ b/parser/package.go
@@ -0,0 +1,15 @@
+package parser
+
+import (
+	"fmt"
+
+	"github.com/mvertes/parscan/vm"
+)
+
+var packages = map[string]map[string]vm.Value{
+	"fmt": fmtPkg,
+}
+
+var fmtPkg = map[string]vm.Value{
+	"Println": vm.ValueOf(fmt.Println),
+}