stage2: error check for mixing --import-table and --export-table

is moved from the linker to the frontend. This is a follow-up from
4cb2f11693b1bf13770b8ad6a8b8a1e37101a516.

3 files changed, 9 insertions, 4 deletions

diff --git a/src/Compilation.zig b/src/Compilation.zig
index 9a9ac5592a..6e3a955632 100644
--- a/src/Compilation.zig
+++ b/src/Compilation.zig
@@ -852,6 +852,10 @@ pub fn create(gpa: Allocator, options: InitOptions) !*Compilation {
     // WASI-only. Resolve the optional exec-model option, defaults to command.
     const wasi_exec_model = if (options.target.os.tag != .wasi) undefined else options.wasi_exec_model orelse .command;
 
+    if (options.linker_export_table and options.linker_import_table) {
+        return error.ExportTableAndImportTableConflict;
+    }
+
     const comp: *Compilation = comp: {
         // For allocations that have the same lifetime as Compilation. This arena is used only during this
         // initialization and then is freed in deinit().
diff --git a/src/link/Wasm.zig b/src/link/Wasm.zig
index c305959e56..35a1ac672a 100644
--- a/src/link/Wasm.zig
+++ b/src/link/Wasm.zig
@@ -1123,14 +1123,12 @@ fn linkWithLLD(self: *Wasm, comp: *Compilation) !void {
         }
 
         if (self.base.options.import_table) {
-            if (self.base.options.export_table) {
-                log.err("--import-table and --export-table may not be used together", .{});
-                return error.InvalidArgs;
-            }
+            assert(self.base.options.export_table);
             try argv.append("--import-table");
         }
 
         if (self.base.options.export_table) {
+            assert(!self.base.options.import_table);
             try argv.append("--export-table");
         }
 
diff --git a/src/main.zig b/src/main.zig
index effcef40d9..3f2dbd0cc7 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -2543,6 +2543,9 @@ fn buildOutputType(
             }
             process.exit(1);
         },
+        error.ExportTableAndImportTableConflict => {
+            fatal("--import-table and --export-table may not be used together", .{});
+        },
         else => fatal("unable to create compilation: {s}", .{@errorName(err)}),
     };
     var comp_destroyed = false;