From e920d306fb51c16fd473033b64aa5ba5c3e07409 Mon Sep 17 00:00:00 2001
From: Bruce Hill <bruce@bruce-hill.com>
Date: Sun, 24 Aug 2025 15:56:38 -0400
Subject: Split into more files: promotion, sets, tables, pointers, functions.

---
 src/compile/functions.c | 96 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 src/compile/functions.c

(limited to 'src/compile/functions.c')

diff --git a/src/compile/functions.c b/src/compile/functions.c
new file mode 100644
index 00000000..ac4e27ea
--- /dev/null
+++ b/src/compile/functions.c
@@ -0,0 +1,96 @@
+#include "../ast.h"
+#include "../compile.h"
+#include "../environment.h"
+#include "../stdlib/datatypes.h"
+#include "../stdlib/integers.h"
+#include "../stdlib/nums.h"
+#include "../stdlib/tables.h"
+#include "../stdlib/text.h"
+#include "../stdlib/util.h"
+#include "../typecheck.h"
+#include "../types.h"
+#include "integers.h"
+
+public
+Text_t compile_arguments(env_t *env, ast_t *call_ast, arg_t *spec_args, arg_ast_t *call_args) {
+    Table_t used_args = {};
+    Text_t code = EMPTY_TEXT;
+    env_t *default_scope = new (env_t);
+    *default_scope = *env;
+    default_scope->locals = new (Table_t, .fallback = env->namespace_bindings ? env->namespace_bindings : env->globals);
+    for (arg_t *spec_arg = spec_args; spec_arg; spec_arg = spec_arg->next) {
+        int64_t i = 1;
+        // Find keyword:
+        if (spec_arg->name) {
+            for (arg_ast_t *call_arg = call_args; call_arg; call_arg = call_arg->next) {
+                if (call_arg->name && streq(call_arg->name, spec_arg->name)) {
+                    Text_t value;
+                    if (spec_arg->type->tag == IntType && call_arg->value->tag == Int) {
+                        value = compile_int_to_type(env, call_arg->value, spec_arg->type);
+                    } else if (spec_arg->type->tag == NumType && call_arg->value->tag == Int) {
+                        OptionalInt_t int_val = Int$from_str(Match(call_arg->value, Int)->str);
+                        if (int_val.small == 0) code_err(call_arg->value, "Failed to parse this integer");
+                        if (Match(spec_arg->type, NumType)->bits == TYPE_NBITS64)
+                            value = Text$from_str(String(hex_double(Num$from_int(int_val, false))));
+                        else value = Text$from_str(String(hex_double((double)Num32$from_int(int_val, false)), "f"));
+                    } else {
+                        env_t *arg_env = with_enum_scope(env, spec_arg->type);
+                        value = compile_maybe_incref(arg_env, call_arg->value, spec_arg->type);
+                    }
+                    Table$str_set(&used_args, call_arg->name, call_arg);
+                    if (code.length > 0) code = Texts(code, ", ");
+                    code = Texts(code, value);
+                    goto found_it;
+                }
+            }
+        }
+        // Find positional:
+        for (arg_ast_t *call_arg = call_args; call_arg; call_arg = call_arg->next) {
+            if (call_arg->name) continue;
+            const char *pseudoname = String(i++);
+            if (!Table$str_get(used_args, pseudoname)) {
+                Text_t value;
+                if (spec_arg->type->tag == IntType && call_arg->value->tag == Int) {
+                    value = compile_int_to_type(env, call_arg->value, spec_arg->type);
+                } else if (spec_arg->type->tag == NumType && call_arg->value->tag == Int) {
+                    OptionalInt_t int_val = Int$from_str(Match(call_arg->value, Int)->str);
+                    if (int_val.small == 0) code_err(call_arg->value, "Failed to parse this integer");
+                    if (Match(spec_arg->type, NumType)->bits == TYPE_NBITS64)
+                        value = Text$from_str(String(hex_double(Num$from_int(int_val, false))));
+                    else value = Text$from_str(String(hex_double((double)Num32$from_int(int_val, false)), "f"));
+                } else {
+                    env_t *arg_env = with_enum_scope(env, spec_arg->type);
+                    value = compile_maybe_incref(arg_env, call_arg->value, spec_arg->type);
+                }
+
+                Table$str_set(&used_args, pseudoname, call_arg);
+                if (code.length > 0) code = Texts(code, ", ");
+                code = Texts(code, value);
+                goto found_it;
+            }
+        }
+
+        if (spec_arg->default_val) {
+            if (code.length > 0) code = Texts(code, ", ");
+            code = Texts(code, compile_maybe_incref(default_scope, spec_arg->default_val, get_arg_type(env, spec_arg)));
+            goto found_it;
+        }
+
+        assert(spec_arg->name);
+        code_err(call_ast, "The required argument '", spec_arg->name, "' was not provided");
+    found_it:
+        continue;
+    }
+
+    int64_t i = 1;
+    for (arg_ast_t *call_arg = call_args; call_arg; call_arg = call_arg->next) {
+        if (call_arg->name) {
+            if (!Table$str_get(used_args, call_arg->name))
+                code_err(call_arg->value, "There is no argument with the name '", call_arg->name, "'");
+        } else {
+            const char *pseudoname = String(i++);
+            if (!Table$str_get(used_args, pseudoname)) code_err(call_arg->value, "This is one argument too many!");
+        }
+    }
+    return code;
+}
-- 
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