diff --git a/internal/configs/symlib/consts.go b/internal/configs/symlib/consts.go
new file mode 100644
index 0000000000..33b491bc83
--- /dev/null
+++ b/internal/configs/symlib/consts.go
@@ -0,0 +1,33 @@
+package symlib
+
+import (
+	"github.com/hashicorp/hcl/v2"
+	"github.com/hashicorp/hcl/v2/hclsyntax"
+)
+
+type Const struct {
+	Name      string
+	Expr      hcl.Expression
+	DeclRange hcl.Range
+}
+
+func decodeConstBlock(block *hcl.Block) ([]*Const, hcl.Diagnostics) {
+	var consts []*Const
+	attrs, diags := block.Body.JustAttributes()
+	for name, attr := range attrs {
+		if !hclsyntax.ValidIdentifier(name) {
+			diags = append(diags, &hcl.Diagnostic{
+				Severity: hcl.DiagError,
+				Summary:  "Invalid const value name",
+				Detail:   badIdentifierDetail,
+				Subject:  &attr.NameRange,
+			})
+		}
+		consts = append(consts, &Const{
+			Name:      name,
+			Expr:      attr.Expr,
+			DeclRange: attr.Range,
+		})
+	}
+	return consts, diags
+}