From 63f2cd5a7cdeb68a91b0683c10b75eb34f92b0b7 Mon Sep 17 00:00:00 2001
From: David Gonzalez Martin <davidgmbb@gmail.com>
Date: Sat, 19 Apr 2025 20:47:54 -0600
Subject: [PATCH] wip

---
 src/bootstrap.zig   | 31 +++++++++++++++++++++++++++++++
 src/compiler.bbb    | 11 ++++++++++-
 tests/enum_name.bbb | 24 ++++++++++++++++++++++++
 3 files changed, 65 insertions(+), 1 deletion(-)
 create mode 100644 tests/enum_name.bbb

diff --git a/src/bootstrap.zig b/src/bootstrap.zig
index eb0a6bf..773f739 100644
--- a/src/bootstrap.zig
+++ b/src/bootstrap.zig
@@ -207,6 +207,7 @@ pub const ResolvedType = struct {
 pub const Enumerator = struct {
     fields: []const Enumerator.Field,
     string_to_enum: ?StringToEnum = null,
+    enum_to_string: ?*llvm.Function = null,
     backing_type: *Type,
     line: u32,
     implicit_backing_type: bool,
@@ -813,6 +814,7 @@ pub const Value = struct {
 
     const Intrinsic = union(Id) {
         byte_size: *Type,
+        enum_name: *Value,
         extend: *Value,
         integer_max: *Type,
         int_from_enum: *Value,
@@ -829,6 +831,7 @@ pub const Value = struct {
 
         const Id = enum {
             byte_size,
+            enum_name,
             extend,
             integer_max,
             int_from_enum,
@@ -2944,6 +2947,20 @@ pub const Module = struct {
                     },
                 };
             },
+            .enum_name => blk: {
+                module.skip_space();
+                module.expect_character(left_parenthesis);
+                module.skip_space();
+                const arg_value = module.parse_value(function, scope, .{});
+                module.expect_character(right_parenthesis);
+                break :blk .{
+                    .bb = .{
+                        .intrinsic = .{
+                            .enum_name = arg_value,
+                        },
+                    },
+                };
+            },
             .extend => blk: {
                 module.skip_space();
                 module.expect_character(left_parenthesis);
@@ -5483,6 +5500,20 @@ pub const Module = struct {
 
                     break :blk expected_type;
                 },
+                .enum_name => |enum_value| blk: {
+                    const string_type = module.get_slice_type(.{ .type = module.integer_type(8, false) });
+                    module.typecheck(analysis, string_type);
+                    module.analyze_value_type(function, enum_value, .{});
+                    if (enum_value.type.?.bb != .enumerator) {
+                        module.report_error();
+                    }
+
+                    // TODO: share globals for enum names between string to enum and enum to string functions
+                    if (enum_value.type.?.bb.enumerator.enum_to_string == null) {
+                        @trap();
+                    }
+                    break :blk string_type;
+                },
                 .extend => |extended_value| blk: {
                     const expected_type = analysis.type orelse module.report_error();
                     module.analyze_value_type(function, extended_value, .{});
diff --git a/src/compiler.bbb b/src/compiler.bbb
index 7196156..dbf48b2 100644
--- a/src/compiler.bbb
+++ b/src/compiler.bbb
@@ -277,7 +277,7 @@ arena_join_string = fn (arena: &Arena, pieces: [][]u8) []u8
     assert(i == size);
     pointer[i] = 0;
 
-    return pointer[0..size];
+    return pointer[..size];
 }
 
 GlobalState = struct
@@ -325,6 +325,8 @@ CompileFile = struct
     silent: u1,
 }
 
+base_cache_dir = "bb-cache";
+
 compile_file = fn (arena: &Arena, compile: CompileFile) void
 {
     >relative_file_path = compile.relative_file_path;
@@ -354,6 +356,13 @@ compile_file = fn (arena: &Arena, compile: CompileFile) void
     >base_name = relative_file_path[base_start..extension_start];
 
     >is_compiler = string_equal(relative_file_path, "src/compiler.bbb");
+    >outputh_path_dir = arena_join_string(arena, [
+        base_cache_dir,
+        #select(is_compiler, "/compiler/", "/"),
+        #enum_name(compile.build_mode),
+        "_",
+        #select(compile.has_debug_info, "di", "nodi"),
+    ][..]);
 }
 
 [export] main = fn [cc(c)] (argument_count: u32, argv: &&u8) s32
diff --git a/tests/enum_name.bbb b/tests/enum_name.bbb
new file mode 100644
index 0000000..2a03c95
--- /dev/null
+++ b/tests/enum_name.bbb
@@ -0,0 +1,24 @@
+E = enum
+{
+    my_expected_result,
+    a,
+    b,
+}
+
+[extern] memcmp = fn [cc(c)] (a: &u8, b: &u8, byte_count: u64) s32;
+string_equal = fn (slice_a: []u8, slice_b: []u8) u1
+{
+    >result = slice_a.length == slice_b.length;
+    if (result)
+    {
+        result = memcmp(slice_a.pointer, slice_b.pointer, slice_a.length) == 0;
+    }
+
+    return result;
+}
+
+[export] main = fn [cc(c)] () s32
+{
+    >some_enum: E = .my_expected_result;
+    return #extend(!string_equal(#enum_name(some_enum), "my_expected_result"));
+}