fix: use coerceToString

nix-js/runtime-ts/src/builtins/context.ts

@@ -1,6 +1,6 @@
 import type { NixValue, NixAttrs, NixString } from "../types";
 import { isStringWithContext } from "../types";
-import { forceNixString, forceAttrs, forceBool, forceList, forceString } from "../type-assert";
+import { forceNixString, forceAttrs, forceList, forceString } from "../type-assert";
 import { force } from "../thunk";
 import {
   type NixStringContext,

nix-js/runtime-ts/src/builtins/conversion.ts

@@ -130,7 +130,7 @@ export interface CoerceResult {
  */
 export const coerceToString = (
   value: NixValue,
-  mode: StringCoercionMode = StringCoercionMode.ToString,
+  mode: StringCoercionMode,
   copyToStore: boolean = false,
   outContext?: NixStringContext,
 ): string => {

nix-js/runtime-ts/src/builtins/derivation.ts

@@ -1,14 +1,9 @@
 import type { NixValue, NixAttrs } from "../types";
-import { forceString, forceList, forceNixString } from "../type-assert";
+import { forceString, forceList } from "../type-assert";
 import { force } from "../thunk";
 import { type DerivationData, type OutputInfo, generateAterm } from "../derivation-helpers";
 import { coerceToString, StringCoercionMode } from "./conversion";
-import {
-  type NixStringContext,
-  extractInputDrvsAndSrcs,
-  isStringWithContext,
-  HAS_CONTEXT,
-} from "../string-context";
+import { type NixStringContext, extractInputDrvsAndSrcs, isStringWithContext } from "../string-context";
 import { nixValueToJson } from "../conversion";
 
 const forceAttrs = (value: NixValue): NixAttrs => {

nix-js/runtime-ts/src/builtins/functional.ts

@@ -4,7 +4,7 @@
 
 import { CatchableError, HAS_CONTEXT, type NixValue } from "../types";
 import { force } from "../thunk";
-import { forceString } from "../type-assert";
+import { coerceToString, StringCoercionMode } from "./conversion";
 
 export const seq =
   (e1: NixValue) =>
@@ -34,7 +34,7 @@ export const abort = (s: NixValue): never => {
 };
 
 export const throwFunc = (s: NixValue): never => {
-  throw new CatchableError(forceString(s));
+  throw new CatchableError(coerceToString(s, StringCoercionMode.Base));
 };
 
 export const trace = (e1: NixValue, e2: NixValue): NixValue => {

nix-js/runtime-ts/src/builtins/io.ts

@@ -6,13 +6,13 @@
 import { forceAttrs, forceBool, forceString } from "../type-assert";
 import type { NixValue, NixAttrs } from "../types";
 import { force } from "../thunk";
+import { coerceToString, StringCoercionMode } from "./conversion";
 
 // Declare Deno.core.ops global (provided by deno_core runtime)
 
 export const importFunc = (path: NixValue): NixValue => {
-  // For MVP: only support string paths
-  // TODO: After implementing path type, also accept path values
-  const pathStr = forceString(path);
+  // TODO: context?
+  const pathStr = coerceToString(path, StringCoercionMode.Base);
 
   // Call Rust op - returns JS code string
   const code = Deno.core.ops.op_import(pathStr);

nix-js/runtime-ts/src/builtins/misc.ts

@@ -98,12 +98,7 @@ function nextComponent(s: string, startIdx: number): ComponentResult {
     }
   } else {
     // Otherwise, consume the longest sequence of non-digit, non-separator characters
-    while (
-      p < s.length &&
-      !(s[p] >= "0" && s[p] <= "9") &&
-      s[p] !== "." &&
-      s[p] !== "-"
-    ) {
+    while (p < s.length && !(s[p] >= "0" && s[p] <= "9") && s[p] !== "." && s[p] !== "-") {
       p++;
     }
   }

nix-js/runtime-ts/src/builtins/string.ts

@@ -4,6 +4,7 @@
 
 import type { NixInt, NixValue } from "../types";
 import { forceString, forceList, forceInt } from "../type-assert";
+import { coerceToString, StringCoercionMode } from "./conversion";
 
 export const stringLength = (e: NixValue): NixInt => BigInt(forceString(e).length);
 
@@ -20,7 +21,10 @@ export const substring =
 export const concatStringsSep =
   (sep: NixValue) =>
   (list: NixValue): string =>
-    forceList(list).join(forceString(sep));
+    // FIXME: context?
+    forceList(list)
+      .map((elem) => coerceToString(elem, StringCoercionMode.Interpolation))
+      .join(forceString(sep));
 
 export const baseNameOf = (x: NixValue): string => {
   const str = forceString(x);

nix-js/runtime-ts/src/conversion.ts

@@ -35,6 +35,7 @@ export const nixValueToJson = (
     if (seen.has(v)) {
       throw new Error("derivation: circular reference detected in __structuredAttrs");
     }
+    // FIXME: tryAttrsToString
     seen.add(v);
   }