diff --git a/calyx-frontend/src/ast.rs b/calyx-frontend/src/ast.rs
index 728eae414..a857cfbd3 100644
--- a/calyx-frontend/src/ast.rs
+++ b/calyx-frontend/src/ast.rs
@@ -1,6 +1,6 @@
 //! Abstract Syntax Tree for Calyx
 use super::parser;
-use crate::{Attributes, PortDef, Primitive};
+use crate::{metadata::MetadataTable, Attributes, PortDef, Primitive};
 use atty::Stream;
 use calyx_utils::{CalyxResult, Error, GPosIdx, Id, PosString};
 use std::{num::NonZeroU64, path::PathBuf};
@@ -14,8 +14,10 @@ pub struct NamespaceDef {
     pub components: Vec<ComponentDef>,
     /// Extern statements and any primitive declarations in them.
     pub externs: Vec<(Option<PosString>, Vec<Primitive>)>,
-    /// Optional opaque metadata
+    /// Optional legacy opaque metadata. Newer metadata is in [NamespaceDef::file_info_table]
     pub metadata: Option<String>,
+    /// Optional metadata mapping table
+    pub file_info_table: Option<MetadataTable>,
 }
 
 impl NamespaceDef {
diff --git a/calyx-frontend/src/parser.rs b/calyx-frontend/src/parser.rs
index 0d24c06bc..7e6372666 100644
--- a/calyx-frontend/src/parser.rs
+++ b/calyx-frontend/src/parser.rs
@@ -1426,18 +1426,38 @@ impl CalyxParser {
 
     // end new metadata
 
+    fn extra_info(
+        input: Node,
+    ) -> ParseResult<(Option<String>, Option<MetadataTable>)> {
+        Ok(match_nodes!(input.into_children();
+                [metadata_legacy(l)] => (Some(l), None),
+                [metadata_table(t)] => (None, Some(t)),
+                [metadata_legacy(l), metadata_table(t)] => (Some(l), Some(t)),
+                [metadata_table(t), metadata_legacy(l)] => (Some(l), Some(t))
+        ))
+    }
+
     fn file(input: Node) -> ParseResult<ast::NamespaceDef> {
         Ok(match_nodes!(
             input.into_children();
             // There really seems to be no straightforward way to resolve this
             // duplication
-            [imports(imports), externs_and_comps(mixed), metadata_legacy(m), EOI(_)] => {
+            [imports(imports), externs_and_comps(mixed), extra_info(info), EOI(_)] => {
+                let (mut legacy_metadata, metadata) = info;
+                // remove empty metadata strings
+                if let Some(m) = &legacy_metadata {
+                    if m.is_empty() {
+                        legacy_metadata = None;
+                    }
+                }
+
                 let mut namespace =
                     ast::NamespaceDef {
                         imports,
                         components: Vec::new(),
                         externs: Vec::new(),
-                        metadata: if m != *"" { Some(m) } else { None }
+                        metadata: legacy_metadata,
+                        file_info_table: metadata
                     };
                 for m in mixed {
                     match m {
@@ -1461,7 +1481,8 @@ impl CalyxParser {
                         imports,
                         components: Vec::new(),
                         externs: Vec::new(),
-                        metadata: None
+                        metadata: None,
+                        file_info_table: None
                     };
                 for m in mixed {
                     match m {
diff --git a/calyx-frontend/src/syntax.pest b/calyx-frontend/src/syntax.pest
index 7b024baa1..831252f2a 100644
--- a/calyx-frontend/src/syntax.pest
+++ b/calyx-frontend/src/syntax.pest
@@ -58,7 +58,7 @@ file = {
       SOI
       ~ imports
       ~ externs_and_comps
-      ~ metadata_legacy?
+      ~ extra_info?
       ~ EOI
 }
 
@@ -418,3 +418,11 @@ position_table = {
 metadata_table = {
  ^"fileinfo" ~ "#{" ~ file_table ~ position_table ~ "}#"
 }
+
+
+extra_info = {
+      metadata_legacy
+      | metadata_table
+      | (metadata_legacy ~ metadata_table)
+      | (metadata_table ~ metadata_legacy)
+}
diff --git a/calyx-frontend/src/workspace.rs b/calyx-frontend/src/workspace.rs
index 167f945d4..f022ddaf7 100644
--- a/calyx-frontend/src/workspace.rs
+++ b/calyx-frontend/src/workspace.rs
@@ -2,7 +2,7 @@ use super::{
     ast::{ComponentDef, NamespaceDef},
     parser,
 };
-use crate::LibrarySignatures;
+use crate::{metadata::MetadataTable, LibrarySignatures};
 use calyx_utils::{CalyxResult, Error, WithPos};
 use std::{
     collections::HashSet,
@@ -48,8 +48,10 @@ pub struct Workspace {
     pub lib: LibrarySignatures,
     /// Original import statements present in the top-level file.
     pub original_imports: Vec<String>,
-    /// Optional opaque metadata attached to the top-level file
+    /// Optional legacy opaque metadata attached to the top-level file. Newer metadata is stored in [Workspace::file_info_table]
     pub metadata: Option<String>,
+    /// Optional metadata mapping table attached to the top-level file
+    pub file_info_table: Option<MetadataTable>,
 }
 
 impl Workspace {
@@ -281,6 +283,7 @@ impl Workspace {
         // TODO (griffin): Probably not a great idea to clone the metadata
         // string but it works for now
         ws.metadata = ns.metadata.clone();
+        ws.file_info_table = ns.file_info_table.clone();
 
         // Merge the initial namespace
         let parent_canonical = parent_path.canonicalize().map_err(|err| {
diff --git a/calyx-ir/src/context.rs b/calyx-ir/src/context.rs
index cc00e1b86..69fe0c9cd 100644
--- a/calyx-ir/src/context.rs
+++ b/calyx-ir/src/context.rs
@@ -2,7 +2,7 @@
 //! need to transform, lower, an emit a program.
 //! Passes usually have transform/analyze the components in the IR.
 use super::{Component, Id};
-use calyx_frontend::LibrarySignatures;
+use calyx_frontend::{metadata::MetadataTable, LibrarySignatures};
 
 /// Configuration information for the backends.
 #[derive(Default)]
@@ -32,8 +32,10 @@ pub struct Context {
     /// Extra options provided to the command line.
     /// Interpreted by individual passes
     pub extra_opts: Vec<String>,
-    /// An optional opaque metadata string which is used by Cider
+    /// An optional legacy opaque metadata string
     pub metadata: Option<String>,
+    /// An optional metadata mapping table
+    pub file_info_table: Option<MetadataTable>,
 }
 
 impl Context {
diff --git a/calyx-ir/src/from_ast.rs b/calyx-ir/src/from_ast.rs
index cf912388b..9eca52523 100644
--- a/calyx-ir/src/from_ast.rs
+++ b/calyx-ir/src/from_ast.rs
@@ -245,6 +245,7 @@ pub fn ast_to_ir(mut workspace: Workspace) -> CalyxResult<Context> {
         entrypoint,
         extra_opts: vec![],
         metadata: workspace.metadata,
+        file_info_table: workspace.file_info_table,
     })
 }