158 lines
7.6 KiB
C
158 lines
7.6 KiB
C
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#include <ctype.h>
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#include <gc/cord.h>
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#include <gc.h>
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#include <stdio.h>
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#include "ast.h"
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#include "builtins/text.h"
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#include "compile.h"
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#include "structs.h"
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#include "environment.h"
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#include "typecheck.h"
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#include "builtins/util.h"
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static CORD compile_str_method(env_t *env, ast_t *ast)
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{
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auto def = Match(ast, EnumDef);
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CORD str_func = CORD_all("static CORD ", def->name, "$as_text(", def->name, "_t *obj, bool use_color) {\n"
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"\tif (!obj) return \"", def->name, "\";\n"
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"switch (obj->$tag) {\n");
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for (tag_ast_t *tag = def->tags; tag; tag = tag->next) {
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str_func = CORD_all(str_func, "\tcase $tag$", def->name, "$", tag->name, ": return CORD_all(use_color ? \"\\x1b[36;1m",
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def->name, ".", tag->name, "\\x1b[m(\" : \"", def->name, ".", tag->name, "(\"");
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if (tag->secret) {
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str_func = CORD_cat(str_func, ", \"***)\");\n");
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continue;
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}
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for (arg_ast_t *field = tag->fields; field; field = field->next) {
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type_t *field_t = get_arg_ast_type(env, field);
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CORD field_str = expr_as_text(env, CORD_all("obj->", tag->name, ".", field->name), field_t, "use_color");
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str_func = CORD_all(str_func, ", \"", field->name, "=\", ", field_str);
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if (field->next) str_func = CORD_cat(str_func, ", \", \"");
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}
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str_func = CORD_cat(str_func, ", \")\");\n");
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}
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str_func = CORD_cat(str_func, "\tdefault: return CORD_EMPTY;\n\t}\n}\n");
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return str_func;
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}
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static CORD compile_compare_method(env_t *env, ast_t *ast)
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{
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auto def = Match(ast, EnumDef);
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CORD cmp_func = CORD_all("static int ", def->name, "$compare(const ", def->name, "_t *x, const ", def->name,
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"_t *y, const TypeInfo *info) {\n"
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"(void)info;\n"
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"int diff = x->$tag - y->$tag;\n"
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"if (diff) return diff;\n"
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"switch (x->$tag) {\n");
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for (tag_ast_t *tag = def->tags; tag; tag = tag->next) {
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type_t *tag_type = Table_str_get(*env->types, heap_strf("%s$%s", def->name, tag->name));
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cmp_func = CORD_all(cmp_func, "\tcase $tag$", def->name, "$", tag->name, ": "
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"return generic_compare(&x->", tag->name, ", &y->", tag->name, ", ", compile_type_info(env, tag_type), ");\n");
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}
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cmp_func = CORD_all(cmp_func, "default: return 0;\n}\n}\n");
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return cmp_func;
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}
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static CORD compile_equals_method(env_t *env, ast_t *ast)
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{
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auto def = Match(ast, EnumDef);
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CORD eq_func = CORD_all("static bool ", def->name, "$equal(const ", def->name, "_t *x, const ", def->name,
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"_t *y, const TypeInfo *info) {\n"
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"(void)info;\n"
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"if (x->$tag != y->$tag) return no;\n"
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"switch (x->$tag) {\n");
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for (tag_ast_t *tag = def->tags; tag; tag = tag->next) {
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type_t *tag_type = Table_str_get(*env->types, heap_strf("%s$%s", def->name, tag->name));
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eq_func = CORD_all(eq_func, "\tcase $tag$", def->name, "$", tag->name, ": "
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"return generic_equal(&x->", tag->name, ", &y->", tag->name, ", ", compile_type_info(env, tag_type), ");\n");
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}
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eq_func = CORD_all(eq_func, "default: return 0;\n}\n}\n");
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return eq_func;
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}
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static CORD compile_hash_method(env_t *env, ast_t *ast)
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{
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auto def = Match(ast, EnumDef);
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CORD hash_func = CORD_all("static uint32_t ", def->name, "$hash(const ", def->name, "_t *obj, const TypeInfo *info) {\n"
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"(void)info;\n"
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"uint32_t hashes[2] = {(uint32_t)obj->$tag};\n"
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"switch (obj->$tag) {\n");
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for (tag_ast_t *tag = def->tags; tag; tag = tag->next) {
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type_t *tag_type = Table_str_get(*env->types, heap_strf("%s$%s", def->name, tag->name));
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hash_func = CORD_all(hash_func, "\tcase $tag$", def->name, "$", tag->name, ": "
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"hashes[1] = generic_hash(&obj->", tag->name, ", ", compile_type_info(env, tag_type), ");\n"
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"break;\n");
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}
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hash_func = CORD_all(hash_func, "}\n"
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"uint32_t hash;\n"
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"halfsiphash(&hashes, sizeof(hashes), SSS_HASH_VECTOR, (uint8_t*)&hash, sizeof(hash));\n"
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"return hash;\n}\n");
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return hash_func;
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}
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void compile_enum_def(env_t *env, ast_t *ast)
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{
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auto def = Match(ast, EnumDef);
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CORD_appendf(&env->code->typedefs, "typedef struct %s_s %s_t;\n", def->name, def->name);
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CORD_appendf(&env->code->typedefs, "extern const TypeInfo %s;\n", def->name);
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CORD enum_def = CORD_all("struct ", def->name, "_s {\n"
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"\tenum {");
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for (tag_ast_t *tag = def->tags; tag; tag = tag->next) {
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CORD_appendf(&enum_def, "$tag$%s$%s = %ld", def->name, tag->name, tag->value);
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if (tag->next) enum_def = CORD_cat(enum_def, ", ");
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}
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enum_def = CORD_cat(enum_def, "} $tag;\n"
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"union {\n");
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for (tag_ast_t *tag = def->tags; tag; tag = tag->next) {
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compile_struct_def(env, WrapAST(ast, StructDef, .name=heap_strf("%s$%s", def->name, tag->name), .fields=tag->fields));
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enum_def = CORD_all(enum_def, def->name, "$", tag->name, "_t ", tag->name, ";\n");
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// Constructor:
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CORD arg_sig = CORD_EMPTY;
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for (arg_ast_t *field = tag->fields; field; field = field->next) {
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type_t *field_t = get_arg_ast_type(env, field);
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arg_sig = CORD_all(arg_sig, compile_declaration(field_t, field->name));
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if (field->next) arg_sig = CORD_cat(arg_sig, ", ");
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}
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if (arg_sig == CORD_EMPTY) arg_sig = "void";
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CORD constructor_def = CORD_all(def->name, "_t ", def->name, "$tagged$", tag->name, "(", arg_sig, ");\n");
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env->code->fndefs = CORD_cat(env->code->fndefs, constructor_def);
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CORD constructor_impl = CORD_all("public inline ", def->name, "_t ", def->name, "$tagged$", tag->name, "(", arg_sig, ") { return (",
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def->name, "_t){.$tag=$tag$", def->name, "$", tag->name, ", .", tag->name, "={");
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for (arg_ast_t *field = tag->fields; field; field = field->next) {
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constructor_impl = CORD_all(constructor_impl, field->name);
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if (field->next) constructor_impl = CORD_cat(constructor_impl, ", ");
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}
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constructor_impl = CORD_cat(constructor_impl, "}}; }\n");
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env->code->funcs = CORD_cat(env->code->funcs, constructor_impl);
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}
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enum_def = CORD_cat(enum_def, "};\n};\n");
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env->code->typecode = CORD_cat(env->code->typecode, enum_def);
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type_t *t = Table_str_get(*env->types, def->name);
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CORD typeinfo = CORD_asprintf("public const TypeInfo %s = {%zu, %zu, {.tag=CustomInfo, .CustomInfo={",
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def->name, type_size(t), type_align(t));
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env->code->funcs = CORD_all(
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env->code->funcs,
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compile_str_method(env, ast),
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compile_equals_method(env, ast), compile_compare_method(env, ast),
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compile_hash_method(env, ast));
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typeinfo = CORD_all(
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typeinfo,
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".as_text=(void*)", def->name, "$as_text, "
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".equal=(void*)", def->name, "$equal, "
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".hash=(void*)", def->name, "$hash, "
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".compare=(void*)", def->name, "$compare");
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typeinfo = CORD_cat(typeinfo, "}}};\n");
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env->code->typeinfos = CORD_all(env->code->typeinfos, typeinfo);
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compile_namespace(env, def->name, def->namespace);
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}
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// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
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