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-rw-r--r--archive/arr.c69
-rw-r--r--archive/base_cgen.c295
-rw-r--r--archive/cgen.c463
-rw-r--r--archive/decls_cgen.c106
4 files changed, 0 insertions, 933 deletions
diff --git a/archive/arr.c b/archive/arr.c
deleted file mode 100644
index 2a055b1..0000000
--- a/archive/arr.c
+++ /dev/null
@@ -1,69 +0,0 @@
-
-static void arr_create(Array *arr, size_t item_sz) {
- arr->len = arr->cap = 0;
- arr->item_sz = item_sz;
- arr->data = NULL;
-}
-
-static inline void arr_reserve(Array *arr, size_t n) {
- arr->cap = n;
- arr->data = err_realloc(arr->data, arr->item_sz * arr->cap);
-}
-
-static inline void arr_reservea(Array *arr, size_t n, Allocator *a) {
- arr->cap = n;
- arr->data = allocr_realloc(a, arr->data, arr->item_sz * arr->cap);
-}
-
-/* like arr_reserve, but sets the length of the array too */
-static inline void arr_set_len(Array *arr, size_t n) {
- arr_reserve(arr, n);
- arr->len = n;
-}
-
-static inline void arr_set_lena(Array *arr, size_t n, Allocator *a) {
- arr_reservea(arr, n, a);
- arr->len = n;
-}
-
-static inline void *arr_last(Array *arr) {
- if (arr->data)
- return (void*)((char*)arr->data + arr->item_sz * (arr->len - 1));
- else
- return NULL;
-}
-
-static void *arr_add(Array *arr) {
- if (arr->len >= arr->cap) {
- arr_reserve(arr, (arr->cap + 1) * 2);
- }
- arr->len++;
- return (void*)((char*)arr->data + arr->item_sz * (arr->len - 1));
-}
-
-static void *arr_adda(Array *arr, Allocator *a) {
- if (arr->len >= arr->cap) {
- arr_reservea(arr, (arr->cap + 1) * 2, a);
- }
- arr->len++;
- return (void*)((char*)arr->data + arr->item_sz * (arr->len - 1));
-}
-
-static void arr_clear(Array *arr) {
- free(arr->data);
- arr->len = arr->cap = 0;
- arr->data = NULL;
-}
-
-static void arr_remove_last(Array *arr) {
- /* OPTIM (memory): Shorten array. */
- arr->len--;
-}
-
-static void arr_free(Array *arr) {
- free(arr->data);
-}
-
-/* NOTE: this will not work if type is a pointer! */
-#define arr_foreach(arr, type, var) for (type *var = (arr)->data, *var##_foreach_last = arr_last(arr); var; var == var##_foreach_last ? var = NULL : var++)
-#define arr_foreach_reverse(arr, type, var) for (type *var = arr_last(arr); var; var == (arr)->data ? var = NULL : var--)
diff --git a/archive/base_cgen.c b/archive/base_cgen.c
deleted file mode 100644
index d773ba9..0000000
--- a/archive/base_cgen.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/* figures out types and writes function prototypes */
-/* TODO: check ferror */
-typedef enum {
- CGEN_WRITING_TO_H,
- CGEN_WRITING_TO_C
-} CGenWritingTo;
-typedef struct {
- FILE *c_out;
- FILE *h_out;
- unsigned long anon_fn_count;
- unsigned long anon_var_count;
- Block *block;
- int indent_level;
- bool indent_next; /* should the next thing written be indented? */
- CGenWritingTo writing_to;
- Identifier main_ident;
-} CGenerator;
-
-static FILE *cgen_writing_to(CGenerator *g) {
- switch (g->writing_to) {
- case CGEN_WRITING_TO_H:
- return g->h_out;
- case CGEN_WRITING_TO_C:
- return g->c_out;
- }
- assert(0);
- return NULL;
-}
-
-static void cgen_indent(CGenerator *g) {
- if (g->indent_next) {
- for (int i = 0; i < g->indent_level; i++)
- fprintf(cgen_writing_to(g), "\t");
- g->indent_next = false;
- }
-}
-
-static void cgen_vwrite(CGenerator *g, const char *fmt, va_list args) {
- cgen_indent(g);
- vfprintf(cgen_writing_to(g), fmt, args);
-}
-
-static void cgen_write(CGenerator *g, const char *fmt, ...) {
- va_list args;
- va_start(args, fmt);
- cgen_vwrite(g, fmt, args);
- va_end(args);
-}
-
-/* Used to write an UNNECESSARY space */
-static void cgen_space(CGenerator *g) {
- cgen_write(g, " ");
-}
-
-/* Used to write something followed by an UNNECESSARY newline */
-static void cgen_writeln(CGenerator *g, const char *fmt, ...) {
- va_list args;
- va_start(args, fmt);
- cgen_vwrite(g, fmt, args);
- va_end(args);
- cgen_write(g, "\n");
- g->indent_next = true;
-}
-
-/* static void cgen_write_comment(CGenerator *g, const char *fmt, ...) { */
-/* cgen_write(g, "/\* "); */
-/* va_list args; */
-/* va_start(args, fmt); */
-/* cgen_vwrite(g, fmt, args); */
-/* va_end(args); */
-/* cgen_write(g, " *\/"); */
-/* } */
-
-static void cgen_write_line_comment(CGenerator *g, const char *fmt, ...) {
- /* could switch to // for c99 */
- cgen_write(g, "/* ");
- va_list args;
- va_start(args, fmt);
- cgen_vwrite(g, fmt, args);
- va_end(args);
- cgen_write(g, " */\n");
-}
-
-
-/* Pass NULL for where if you don't want to check if it's declared */
-static bool cgen_fn_name(CGenerator *g, FnExpr *f, Location *where);
-static bool cgen_ident(CGenerator *g, Identifier i, Location *where) {
- if (where) {
- IdentDecl *id_decl = ident_decl(i);
- if (!id_decl) {
- err_print(*where, "Identifier undeclared: %s", ident_to_str(i));
- return false;
- }
- Declaration *decl = id_decl->decl;
- if ((decl->flags & DECL_FLAG_HAS_EXPR) && (decl->flags & DECL_FLAG_CONST)) {
- if (decl->expr.kind == EXPR_FN) {
- cgen_fn_name(g, decl->expr.fn, NULL);
- return true;
- }
- }
- }
- cgen_indent(g);
- fprint_ident_reduced_charset(cgen_writing_to(g), i);
- return true;
-}
-
-static const char *builtin_type_to_str(BuiltinType b) {
- /* TODO: make this return int/long/etc. if stdint.h is not available */
- switch (b) {
- case BUILTIN_I8: return "int8_t";
- case BUILTIN_I16: return "int16_t";
- case BUILTIN_I32: return "int32_t";
- case BUILTIN_I64: return "int64_t";
- case BUILTIN_U8: return "uint8_t";
- case BUILTIN_U16: return "uint16_t";
- case BUILTIN_U32: return "uint32_t";
- case BUILTIN_U64: return "uint64_t";
- case BUILTIN_FLOAT: return "float";
- case BUILTIN_DOUBLE: return "double";
- case BUILTIN_TYPE_COUNT: break;
- }
- assert(0);
- return NULL;
-}
-
-/* will this function use a pointer parameter for output? (e.g. fn()[3]int => void(int (*x)[3]) */
-static bool cgen_fn_uses_out_param(Type *fn_ret_type) {
- switch (fn_ret_type->kind) {
- case TYPE_TUPLE:
- case TYPE_ARR:
- return true;
- default:
- return false;
- }
-}
-
-
-static void cgen_anon_var(CGenerator *g, unsigned long v) {
- cgen_write(g, "av___%lu", v);
-}
-
-static void cgen_anon_fn(CGenerator *g, unsigned long f) {
- cgen_write(g, "af___%lu", f);
-}
-
-static void cgen_type_pre(CGenerator *g, Type *t) {
- switch (t->kind) {
- case TYPE_VOID:
- cgen_write(g, "void ");
- break;
- case TYPE_BUILTIN:
- cgen_write(g, "%s ", builtin_type_to_str(t->builtin));
- break;
- case TYPE_FN: {
- Type *types = t->fn.types.data;
- Type *ret_type = &types[0];
- if (cgen_fn_uses_out_param(ret_type)) {
- cgen_write(g, "void ");
- } else {
- cgen_type_pre(g, ret_type);
- }
- cgen_write(g, "(*");
- } break;
- case TYPE_TUPLE:
- assert(0);
- return;
- case TYPE_UNKNOWN:
- err_print(t->where, "Type of unknown-typed expression required (x := #C(\"...\") will not work; you need to annotate the type of x).");
- abort();
- case TYPE_ARR:
- cgen_type_pre(g, t->arr.of);
- break;
- }
-}
-
-static void cgen_type_post(CGenerator *g, Type *t);
-/* either pass NULL for param_types (x)or for params */
-static void cgen_fn_params(CGenerator *g, Type *param_types, Param *params, size_t nparams, Type *ret_type) {
- bool uses_out_param = cgen_fn_uses_out_param(ret_type);
-
- cgen_write(g, "(");
- if (nparams) {
- for (size_t i = 0; i < nparams; i++) {
- if (i) {
- cgen_write(g, ",");
- cgen_space(g);
- }
- if (param_types) {
- cgen_type_pre(g, &param_types[i]);
- cgen_type_post(g, &param_types[i]);
- } else {
- Param *p = &params[i];
- cgen_type_pre(g, &p->type);
- cgen_ident(g, p->name, NULL);
- cgen_type_post(g, &p->type);
- }
- }
- } else {
- if (!uses_out_param)
- cgen_write(g, "void");
- }
- if (uses_out_param) {
- if (nparams) {
- cgen_write(g, ",");
- cgen_space(g);
- }
- /* write out param */
- cgen_type_pre(g, ret_type);
- cgen_write(g, "(*out__)"); /* TODO: fix this for named return values */
- cgen_type_post(g, ret_type);
-
- }
- cgen_write(g, ")");
-}
-
-static void cgen_type_post(CGenerator *g, Type *t) {
- switch (t->kind) {
- case TYPE_VOID:
- case TYPE_BUILTIN:
- break;
- case TYPE_FN: {
- Type *types = t->fn.types.data;
- Type *ret_type = &types[0];
- Type *param_types = types + 1;
- assert(t->fn.types.len > 0);
- size_t nparams = t->fn.types.len-1;
- bool uses_out_param = cgen_fn_uses_out_param(ret_type);
- cgen_write(g, ")");
- cgen_fn_params(g, param_types, NULL, nparams, ret_type);
- if (!uses_out_param) {
- cgen_type_post(g, ret_type);
- }
- cgen_space(g);
- } break;
- case TYPE_TUPLE:
- assert(0);
- return;
- case TYPE_ARR:
- cgen_write(g, "[%lu]", t->arr.n);
- cgen_type_post(g, t->arr.of);
- break;
- case TYPE_UNKNOWN: /* we should always do pre first */
- assert(0);
- break;
- }
-}
-
-static bool cgen_fn_name(CGenerator *g, FnExpr *f, Location *where) {
- if (f->name) {
- /* TODO: check block */
- if (f->name == g->main_ident) {
- cgen_write(g, "main__");
- return true;
- } else {
- return cgen_ident(g, f->name, where);
- }
- } else {
- cgen_anon_fn(g, f->id);
- return true;
- }
-}
-
-static bool cgen_fn_header(CGenerator *g, FnExpr *f) {
- if (!f->name || g->block != NULL) {
- cgen_write(g, "static "); /* anonymous functions only exist in this translation unit */
- }
-
- bool uses_out_param = cgen_fn_uses_out_param(&f->ret_type);
- size_t nparams = f->params.len;
- if (uses_out_param) {
- cgen_write(g, "void ");
- cgen_fn_name(g, f, NULL);
- cgen_fn_params(g, NULL, (Param*)f->params.data, nparams, &f->ret_type);
-
- } else {
- cgen_type_pre(g, &f->ret_type);
- cgen_fn_name(g, f, NULL);
- cgen_fn_params(g, NULL, (Param*)f->params.data, nparams, &f->ret_type);
- cgen_type_post(g, &f->ret_type);
- }
-
- return true;
-}
-
-static bool cgen_block_enter(CGenerator *g, Block *b) {
- g->block = b;
- return block_enter(b, &b->stmts);
-}
-
-static bool cgen_block_exit(CGenerator *g, Block *into) {
- Block *b = g->block;
- g->block = into;
- return block_exit(b, &b->stmts);
-}
-
diff --git a/archive/cgen.c b/archive/cgen.c
deleted file mode 100644
index 7ff2308..0000000
--- a/archive/cgen.c
+++ /dev/null
@@ -1,463 +0,0 @@
-static void cgen_create(CGenerator *g, Identifiers *ids, FILE *c_out, FILE *h_out, const char *h_filename) {
- g->c_out = c_out;
- g->h_out = h_out;
- g->anon_fn_count = 0;
- g->anon_var_count = 0;
- g->indent_level = 0;
- g->block = NULL;
- g->indent_next = true;
- g->main_ident = ident_get(ids, "main");
-
- g->writing_to = CGEN_WRITING_TO_H;
- cgen_write(g, "#include <stddef.h>\n"
- "#include <stdint.h>\n"
- "#include <string.h>\n");
-
- g->writing_to = CGEN_WRITING_TO_C;
- cgen_write(g, "#include \"%s\"\n", h_filename);
- cgen_writeln(g, ""); /* extra newline between includes and code */
-}
-
-static bool cgen_direct(CGenerator *g, DirectExpr *direct, Location where) {
- switch (direct->which) {
- case DIRECT_C: {
- Expression *args = direct->args.data;
- size_t nargs = direct->args.len;
- if (nargs != 1) {
- err_print(where, "Expected 1 argument to #C directive, but got %lu.", nargs);
- }
- /* TODO: compile-time constants */
- if (args[0].kind != EXPR_STR_LITERAL) {
- err_print(args[0].where, "Argument to #C directive must be a string literal.");
- }
- cgen_write(g, "%s", args[0].strl.str);
- } break;
- case DIRECT_COUNT:
- assert(0);
- return false;
- }
- return true;
-}
-
-
-/* generates C statements which must go before an expression. */
-static bool cgen_expr_pre(CGenerator *g, Expression *e) {
- switch (e->kind) {
- case EXPR_BINARY_OP:
- if (!cgen_expr_pre(g, e->binary.lhs)) return false;
- if (!cgen_expr_pre(g, e->binary.rhs)) return false;
- /* TODO(eventually): Short-circuiting operators will need some work */
- break;
- case EXPR_UNARY_OP:
- if (!cgen_expr_pre(g, e->unary.of)) return false;
- break;
- case EXPR_CALL: {
- if (!cgen_expr_pre(g, e->call.fn)) return false;
- arr_foreach(&e->call.args, Expression, arg)
- if (!cgen_expr_pre(g, arg))
- return false;
- Type *fn_types = e->call.fn->type.fn.types.data;
- Type *ret_type = &fn_types[0];
- if (cgen_fn_uses_out_param(ret_type)) {
- /* generate out call */
- e->call.out_var = g->anon_var_count++;
-
- /* declaration of out variable */
- cgen_type_pre(g, ret_type);
- cgen_anon_var(g, e->call.out_var);
- cgen_type_post(g, ret_type);
- cgen_writeln(g, ";");
-
- cgen_expr(g, e->call.fn);
-
- cgen_write(g, "(");
- arr_foreach(&e->call.args, Expression, arg) {
- if (arg != e->call.args.data) {
- cgen_write(g, ",");
- cgen_space(g);
- }
- if (!cgen_expr(g, arg)) return false;
- }
- if (e->call.args.len) {
- cgen_write(g, ",");
- cgen_space(g);
- }
- cgen_write(g, "&");
- cgen_anon_var(g, e->call.out_var);
- cgen_writeln(g, ");");
- }
- } break;
- default: break;
- }
- return true;
-}
-
-static bool cgen_expr(CGenerator *g, Expression *e) {
- switch (e->kind) {
- case EXPR_INT_LITERAL:
- cgen_write(g, "%lld", e->intl);
- break;
- case EXPR_FLOAT_LITERAL:
- /* TODO: more precision */
- cgen_write(g, "%f", (double)e->floatl);
- break;
- case EXPR_STR_LITERAL:
- cgen_write(g, "\"");
- /* OPTIM: Maybe don't use i? this will probably be optimized by the compiler though... */
- for (size_t i = 0; i < e->strl.len; i++) {
- /* TODO: Print ordinary characters nicely */
- cgen_write(g, "\\x%02x", e->strl.str[i]);
- }
- cgen_write(g, "\"");
- break;
- case EXPR_IDENT:
- if (!cgen_ident(g, e->ident, &e->where)) return false;
- break;
- case EXPR_BINARY_OP:
- cgen_write(g, "(");
- if (!cgen_expr(g, e->binary.lhs)) return false;
- switch (e->binary.op) {
- case BINARY_PLUS:
- cgen_write(g, "+");
- break;
- case BINARY_MINUS:
- cgen_write(g, "-");
- break;
- case BINARY_SET:
- cgen_write(g, "=");
- break;
- case BINARY_AT_INDEX:
- cgen_write(g, "[");
- break;
- case BINARY_COMMA:
- assert(0);
- return false;
- }
- if (!cgen_expr(g, e->binary.rhs)) return false;
- if (e->binary.op == BINARY_AT_INDEX) {
- cgen_write(g, "]");
- }
- cgen_write(g, ")");
- break;
- case EXPR_UNARY_OP:
- cgen_write(g, "(");
- switch (e->unary.op) {
- case UNARY_MINUS:
- cgen_write(g, "-");
- break;
- }
- if (!cgen_expr(g, e->unary.of)) return false;
- cgen_write(g, ")");
- break;
- case EXPR_FN:
- if (!cgen_fn_name(g, &e->fn, &e->where)) return false;
- break;
- case EXPR_CALL: {
- Type *fn_types = e->call.fn->type.fn.types.data;
- Type *ret_type = &fn_types[0];
- if (cgen_fn_uses_out_param(ret_type)) { /* if there's an out parameter, */
- cgen_anon_var(g, e->call.out_var); /* just use the variable we made earlier */
- } else {
- if (!cgen_expr(g, e->call.fn)) return false;
- cgen_write(g, "(");
- arr_foreach(&e->call.args, Expression, arg) {
- if (arg != e->call.args.data) {
- cgen_write(g, ",");
- cgen_space(g);
- }
- if (!cgen_expr(g, arg)) return false;
- }
- cgen_write(g, ")");
- }
- } break;
- case EXPR_DIRECT:
- if (!cgen_direct(g, &e->direct, e->where)) return false;
- break;
- }
- return true;
-}
-
-static bool cgen_stmt(CGenerator *g, Statement *s);
-
-static void cgen_zero_value(CGenerator *g, Type *t) {
- switch (t->kind) {
- case TYPE_VOID: /* we should never need this */
- assert(0);
- break;
- case TYPE_FN:
- cgen_write(g, "NULL");
- break;
- case TYPE_ARR:
- cgen_write(g, "{");
- cgen_zero_value(g, t->arr.of);
- cgen_write(g, "}");
- break;
- case TYPE_TUPLE:
- assert(0);
- break;
- case TYPE_BUILTIN:
- if (type_builtin_is_numerical(t->builtin)) {
- cgen_write(g, "0");
- } else {
- assert(0);
- }
- break;
- case TYPE_UNKNOWN:
- assert(0);
- break;
- }
-}
-
-static bool cgen_decl(CGenerator *g, Declaration *d) {
- size_t i = d->idents.len;
- if (d->flags & DECL_FLAG_HAS_EXPR) {
- if (!cgen_expr_pre(g, &d->expr))
- return false;
- }
- /* because , is left-associative, we want to go backwards */
- arr_foreach_reverse(&d->idents, Identifier, ident) {
- Type *type;
- if (d->idents.len > 1) {
- /* it's a tuple! */
- type = &(((Type*)d->type.tuple.data)[--i]);
- } else {
- type = &d->type;
- if (type->kind == TYPE_TUPLE) {
- /* TODO */
- err_print(d->where, "Direct declaration of tuples is not supported yet.");
- return false;
- }
- }
- if (type->kind == TYPE_ARR) {
- /* if you do a : [3]int; translates into int64_t av___23[3] = {0}; int64_t *a = av___23; */
- int has_expr = d->flags & DECL_FLAG_HAS_EXPR;
- unsigned long var;
- if (!has_expr) {
- /* int64_t av___23[3] = {0}; */
- var = g->anon_var_count++;
- cgen_type_pre(g, type);
- cgen_anon_var(g, var);
- cgen_type_post(g, type);
- cgen_space(g);
- cgen_write(g, "=");
- cgen_space(g);
- cgen_zero_value(g, type);
- cgen_writeln(g, ";");
- }
- /* int64_t *a = av___23; */
- cgen_type_pre(g, type->arr.of);
- cgen_write(g, "(*");
- cgen_ident(g, *ident, NULL);
- cgen_write(g, ")");
- cgen_type_post(g, type->arr.of);
- cgen_space(g);
- cgen_write(g, "=");
- cgen_space(g);
- if (has_expr) {
- if (!cgen_expr(g, &d->expr)) return false;
- } else {
- cgen_anon_var(g, var);
- }
- cgen_writeln(g, ";");
- return true;
- }
-
- cgen_type_pre(g, type);
- if (d->flags & DECL_FLAG_CONST) { /* TODO: remove this (never actually produce constants) */
- cgen_space(g);
- cgen_write(g, "const");
- cgen_space(g);
- }
- cgen_ident(g, *ident, NULL);
- cgen_type_post(g, type);
- cgen_space(g);
- cgen_write(g, "=");
- cgen_space(g);
- if (d->flags & DECL_FLAG_HAS_EXPR) {
- Expression *expr = &d->expr;
- if (d->idents.len > 1) {
- if (expr->kind == EXPR_BINARY_OP && expr->binary.op == BINARY_COMMA) {
- if (!cgen_expr(g, expr->binary.rhs)) return false;
- expr = expr->binary.lhs; /* ((3,4),5),6 => (3,4),5 */
- } else {
- /* last iteration */
- if (!cgen_expr(g, expr)) return false;
- }
-
- } else {
- if (!cgen_expr(g, expr)) return false;
- }
- } else {
- cgen_zero_value(g, type);
- }
- cgen_write(g, "; ");
- }
- cgen_writeln(g, "");
- return true;
-}
-
-static bool cgen_stmt(CGenerator *g, Statement *s) {
- switch (s->kind) {
- case STMT_EXPR:
- if (!cgen_expr(g, &s->expr))
- return false;
- cgen_writeln(g, ";");
- break;
- case STMT_DECL: {
- Declaration *d = &s->decl;
- if ((d->flags & DECL_FLAG_HAS_EXPR) && (d->flags & DECL_FLAG_CONST))
- if (d->expr.kind == EXPR_FN)
- return true; /* already dealt with below */
-
- return cgen_decl(g, &s->decl);
- }
- }
- return true;
-}
-
-static bool cgen_fns_in_stmt(CGenerator *g, Statement *s);
-
-typedef struct {
- bool is_return; /* true => this is a function return */
- unsigned long var_no; /* if is_return = false, set the anonymous variable with this number to the return value. */
- const char *exit_with; /* how to exit this block in C, e.g. "break" (not needed if is_return = true). */
-} BlockExitKind;
-
-/* generates a block but not the functions, etc. inside it */
-static bool cgen_block(CGenerator *g, Block *b, BlockExitKind *exit_kind) {
- bool success = true;
- cgen_writeln(g, "{");
- g->indent_level++;
- arr_foreach(&b->stmts, Statement, s) {
- if (!cgen_stmt(g, s))
- success = false;
- }
- if (exit_kind->is_return) {
- /* generate return from function */
- Expression *ret = b->ret_expr;
- if (ret && cgen_fn_uses_out_param(&ret->type)) {
- if (ret->type.kind == TYPE_ARR) {
- /* returning possibly multi-dimensional arrays */
- size_t total_size = 1; /* product of all dimensions */
- Type *type;
- for (type = &ret->type; type->kind == TYPE_ARR; type = type->arr.of)
- total_size *= type->arr.n;
- /* type is now the base type of the array, e.g. [3][3][3]fn() => fn() */
- cgen_write(g, "memcpy(*out__, ");
- if (!cgen_expr(g, b->ret_expr)) return false;
- cgen_write(g, ", %lu * sizeof(", total_size);
- cgen_type_pre(g, type);
- cgen_type_post(g, type);
- cgen_writeln(g, ")); return;");
- } else {
- cgen_write(g, "*out__ = ");
- if (!cgen_expr(g, b->ret_expr)) return false;
- cgen_writeln(g, ";");
- cgen_writeln(g, "return;");
- }
- } else {
- cgen_write(g, "return");
- if (b->ret_expr) {
- cgen_write(g, " ");
- if (!cgen_expr(g, b->ret_expr)) return false;
- }
- cgen_writeln(g, ";");
- }
- } else {
- err_print(b->ret_expr->where, "TODO");
- return false;
- }
- if (success) {
- g->indent_level--;
- cgen_writeln(g, "}");
- }
- return success;
-}
-
-/* Generates function definition, and the definitions of all functions inside this */
-static bool cgen_fn(CGenerator *g, FnExpr *f) {
- if (!cgen_fn_header(g, f)) return false;
- Block *prev_block = g->block;
- cgen_block_enter(g, &f->body);
- cgen_space(g);
- BlockExitKind e_kind;
- e_kind.is_return = 1;
- if (!cgen_block(g, &f->body, &e_kind)) return false;
-
- bool ret = true;
- arr_foreach(&f->body.stmts, Statement, stmt) {
- if (!cgen_fns_in_stmt(g, stmt)) ret = false;
- }
- cgen_block_exit(g, prev_block);
- return ret;
-}
-
-static bool cgen_fns_in_expr(CGenerator *g, Expression *e) {
- switch (e->kind) {
- case EXPR_FN:
- return cgen_fn(g, &e->fn);
- case EXPR_CALL:
- return cgen_fns_in_expr(g, e->call.fn);
- default: return true;
- }
-}
-
-static bool cgen_fns_in_stmt(CGenerator *g, Statement *s) {
- switch (s->kind) {
- case STMT_EXPR:
- if (s->expr.kind == EXPR_FN) {
- warn_print(s->where, "Statement of function has no effect (try assigning the function to a variable).");
- } else {
- return cgen_fns_in_expr(g, &s->expr);
- }
- break;
- case STMT_DECL: {
- Declaration *d = &s->decl;
- if (d->flags & DECL_FLAG_HAS_EXPR)
- return cgen_fns_in_expr(g, &d->expr);
- } break;
- }
- return true;
-}
-
-/* generate a statement at top level, including any functions in it. */
-static bool cgen_stmt_top(CGenerator *g, Statement *s) {
- if (!cgen_fns_in_stmt(g, s)) return false;
- switch (s->kind) {
- case STMT_EXPR: {
- Expression *e = &s->expr;
- bool ignored = true;
- switch (e->kind) {
- case EXPR_DIRECT:
- switch (e->direct.which) {
- case DIRECT_C:
- ignored = false;
- cgen_direct(g, &e->direct, e->where);
- break;
- case DIRECT_COUNT: assert(0); break;
- }
- default: break;
- }
- if (ignored)
- warn_print(e->where, "Expression at top level currently ignored."); /* TODO */
- } break;
- case STMT_DECL: break;
- }
- return true;
-}
-
-static bool cgen_file(CGenerator *g, ParsedFile *f) {
- cgen_write_line_comment(g, "toc");
- bool ret = true;
- if (!cgen_decls_file(g, f)) return false;
- arr_foreach(&f->stmts, Statement, s) {
- if (!cgen_stmt_top(g, s)) return false;
- }
- g->writing_to = CGEN_WRITING_TO_C;
- /* write actual main function */
- cgen_write(g, "\nint main(void) {\n"
- "\tmain__();\n"
- "\treturn 0;\n"
- "}\n");
- return ret;
-}
diff --git a/archive/decls_cgen.c b/archive/decls_cgen.c
deleted file mode 100644
index a596f53..0000000
--- a/archive/decls_cgen.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/* C declarations of functions and global variables. e must be a function expression */
-static bool cgen_decl_fn(CGenerator *g, FnExpr *f) {
- /* assign an ID to the function */
- if (f->name && g->block == NULL) {
- f->id = f->name->c_fn_reps++;
- } else {
- f->id = g->anon_fn_count++;
- }
-
- if (!cgen_fn_header(g, f)) return false;
- cgen_writeln(g, ";");
- return true;
-}
-
-static bool cgen_decls_stmt(CGenerator *g, Statement *s);
-
-static bool cgen_decls_expr(CGenerator *g, Expression *e) {
- switch (e->kind) {
- case EXPR_FN: {
- FnExpr *f = &e->fn;
- if (f->name && g->block == NULL) { /* write named function prototypes in global scope to header file */
- g->writing_to = CGEN_WRITING_TO_H;
- } else {
- g->writing_to = CGEN_WRITING_TO_C;
- }
- if (!cgen_decl_fn(g, f))
- return false;
- g->writing_to = CGEN_WRITING_TO_C;
-
-
- bool ret = true;
- Block *prev_block = g->block;
- cgen_block_enter(g, &f->body);
- arr_foreach(&f->body.stmts, Statement, s) {
- if (!cgen_decls_stmt(g, s))
- ret = false;
- }
- cgen_block_exit(g, prev_block);
- return ret;
- }
- case EXPR_CALL:
- if (!cgen_decls_expr(g, e->call.fn))
- return false;
- arr_foreach(&e->call.args, Expression, arg) {
- if (!cgen_decls_expr(g, arg))
- return false;
- }
- break;
- default: break;
- }
- return true;
-}
-
-
-static bool cgen_expr(CGenerator *g, Expression *e);
-static bool cgen_decls_stmt(CGenerator *g, Statement *s) {
- switch (s->kind) {
- case STMT_EXPR:
- return cgen_decls_expr(g, &s->expr);
- case STMT_DECL: {
- Declaration *d = &s->decl;
- bool is_const_fn = (d->flags & DECL_FLAG_HAS_EXPR) && (d->flags & DECL_FLAG_CONST)
- && d->expr.kind == EXPR_FN;
-
- if (is_const_fn) {
- /* e.g. foo @= fn() {}; (we want to set the function's name to "foo") */
- d->expr.fn.name = *(Identifier*)d->idents.data;
- }
-
- if (d->flags & DECL_FLAG_HAS_EXPR) {
- cgen_decls_expr(g, &d->expr);
- }
-
- if (!is_const_fn) {
- if (g->block == NULL) {
- /* declare this/these global variable(s) */
- arr_foreach(&d->idents, Identifier, i) {
- cgen_type_pre(g, &d->type);
- cgen_ident(g, *i, NULL);
- cgen_type_post(g, &d->type);
- if (d->flags & DECL_FLAG_HAS_EXPR) { /* TODO: check if expr is const */
- cgen_space(g);
- cgen_write(g, "=");
- cgen_space(g);
- if (!cgen_expr(g, &d->expr))
- return false;
- }
- cgen_write(g, ";");
- cgen_space(g);
- }
- cgen_writeln(g, "");
- }
- }
-
- } break;
- }
- return true;
-}
-
-static bool cgen_decls_file(CGenerator *g, ParsedFile *f) {
- arr_foreach(&f->stmts, Statement, s) {
- if (!cgen_decls_stmt(g, s))
- return false;
- }
- return true;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-22 17:39:33 +0000