fix import maps

cli/ops/runtime_compiler.rs

@@ -17,7 +17,6 @@ use deno_core::error::AnyError;
 use deno_core::serde_json;
 use deno_core::serde_json::json;
 use deno_core::serde_json::Value;
-use deno_core::url::Url;
 use deno_core::BufVec;
 use deno_core::ModuleSpecifier;
 use deno_core::OpState;
@@ -75,10 +74,11 @@ async fn op_emit(
       )?))
     };
   let maybe_import_map = if let Some(import_map_str) = args.import_map_path {
-    let import_map_url =
-      Url::from_file_path(&import_map_str).map_err(|_| {
+    let import_map_specifier =
+      ModuleSpecifier::resolve_url_or_path(&import_map_str).map_err(|_| {
         anyhow!("Bad file path (\"{}\") for import map.", import_map_str)
       })?;
+    let import_map_url = import_map_specifier.as_url();
     let import_map = if let Some(value) = args.import_map {
       ImportMap::from_json(&import_map_url.to_string(), &value.to_string())?
     } else {

cli/tests/compiler_api_test.ts

@@ -95,20 +95,18 @@ Deno.test({
   name: "Deno.emit() - import maps",
   async fn() {
     const { diagnostics, files, ignoredOptions, stats } = await Deno.emit(
-      "/a.ts",
+      "file:///a.ts",
       {
         importMap: {
           imports: {
             "b": "./b.ts",
           },
         },
-        importMapPath: Deno.build.os == "windows"
-          ? "C:\\import-map.json"
-          : "/import-map.json",
+        importMapPath: "file:///import-map.json",
         sources: {
-          "/a.ts": `import * as b from "b"
+          "file:///a.ts": `import * as b from "b"
             console.log(b);`,
-          "/b.ts": `export const b = "b";`,
+          "file:///b.ts": `export const b = "b";`,
         },
       },
     );