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stage1 更多的语义及其附属基础设施

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This commit is contained in:
zzy
2026-08-20 19:51:08 +08:00
parent d6113a5417
commit 0f40de43a1
7 changed files with 553 additions and 79 deletions
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5
stage1/spl_ast.c
View File

@@ -1848,9 +1848,10 @@ static void dump_node(spl_ast_t *ast, spl_ast_node_ref_t node_ref, dump_stack_t
for (usize i = 0; i < vec_size(*stack); i++)
printf("%s", vec_at(*stack, i) ? " " : "| ");
printf("%s%s #%zu", last ? "`-" : "|-", spl_ast_kind_name(node->kind), node_ref);
printf("%s%s #%zu ID`%zu`", last ? "`-" : "|-", spl_ast_kind_name(node->kind), node_ref,
node->resolved_type_id);
if (node->dbg.fname)
printf(" (%d:%d)", node->dbg.line, node->dbg.col);
printf(" [%d:%d]", node->dbg.line, node->dbg.col);
printf("\n");
vec_push(*stack, last);

2
stage1/spl_ast.h
View File

@@ -155,7 +155,7 @@ struct spl_ast_node {
spl_ast_node_ref_vec_t attr_list; /* attr_item */
const char *name;
spl_ast_node_ref_vec_t param_list; /* param_decl */
spl_ast_node_ref_t type_expr;
spl_ast_node_ref_t type_expr; /* ret type expr */
spl_ast_node_ref_vec_t block; /* 语句/尾表达式 */
} fn_decl;
struct {

5
stage1/spl_ast2ir.c
View File

@@ -58,7 +58,7 @@ static spl_ir_node_ref_t transit(spl_ir_builder_t *ir, const spl_sema_t *sema,
if (n->ret_statement.expr) {
ret = transit(ir, sema, n->ret_statement.expr);
}
ret = spl_ir_builder_control_ret(ir, tid_from_def(sema, n->resolved_def_id), ret);
ret = spl_ir_builder_control_ret(ir, n->resolved_type_id, ret);
} break;
case SPL_AST_BREAK_STATEMENT:
case SPL_AST_CONTINUE_STATEMENT:
@@ -111,8 +111,7 @@ static spl_ir_node_ref_t transit(spl_ir_builder_t *ir, const spl_sema_t *sema,
TODO();
break;
case SPL_AST_EXPR_INTEGER_LIT: {
ret = spl_ir_builder_type_const_int(ir, tid_from_def(sema, n->resolved_def_id),
n->primary_expr.integer_expr);
ret = spl_ir_builder_type_const_int(ir, n->resolved_type_id, n->primary_expr.integer_expr);
break;
}
case SPL_AST_EXPR_FLOAT_LIT:

590
stage1/spl_sema.c
View File

@@ -82,6 +82,7 @@ static void sema_collect(spl_sema_t *sema, spl_ast_node_ref_t ref) {
n = spl_ast_node(sema->ast, n->type_decl.type_expr);
if (!n) {
SPL_ERROR(&n->dbg, "type_decl must have type_expr");
sema->error_count++;
return;
}
@@ -103,9 +104,9 @@ static void sema_collect(spl_sema_t *sema, spl_ast_node_ref_t ref) {
break;
default:
def->kind = SPL_DEF_SCALAR;
spl_scope_insert(sema->scope, sema->scope->current_scope, symbol);
break;
}
spl_scope_insert(sema->scope, sema->scope->current_scope, symbol);
} break;
case SPL_AST_FN_DECL:
case SPL_AST_FN_DEFINE: {
@@ -145,12 +146,136 @@ static void sema_collect(spl_sema_t *sema, spl_ast_node_ref_t ref) {
}
// Parse twice
static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
if (ref == 0)
return;
// use for assign_expr as_expr
static spl_type_id_t sema_coerce(spl_sema_t *sema, spl_type_id_t to, spl_type_id_t from) {
// var := from
if (to == 0) {
return from;
}
// error
if (from == 0) {
return 0;
}
// same
if (to == from) {
return to;
}
spl_type_node_t *tn = spl_type_node(sema->type, to);
spl_type_node_t *fn = spl_type_node(sema->type, from);
Assert(tn != NULL && fn != NULL);
switch (fn->kind) {
case SPL_TYPE_UNDEFINED:
return to;
case SPL_TYPE_NULL:
if (tn->kind == SPL_TYPE_PTR || tn->kind == SPL_TYPE_SLICE) {
return to;
}
break;
case SPL_TYPE_INT:
if (tn->kind != SPL_TYPE_INT) {
break;
}
// var = comptime_int
if (tn->int_type.bits > 0 && fn->int_type.bits == 0) {
return to;
}
// not same signed
if (tn->int_type.is_signed != fn->int_type.is_signed) {
break;
}
// var i32 = i32/i16
if (tn->int_type.bits >= fn->int_type.bits) {
return to;
}
break;
case SPL_TYPE_FLOAT:
// TODO
break;
case SPL_TYPE_ARRAY:
// TODO
break;
default:
break;
}
return 0;
}
// use for op_expr
static spl_type_id_t sema_coerce_balance(spl_sema_t *sema, spl_type_id_t t1, spl_type_id_t t2) {
// error
if (t1 == 0 || t2 == 0) {
return 0;
}
// same
if (t1 == t2) {
return t1;
}
spl_type_node_t *n1 = spl_type_node(sema->type, t1);
spl_type_node_t *n2 = spl_type_node(sema->type, t2);
Assert(n1 != NULL && n2 != NULL);
// TODO 应该推导类型
if (n1->kind == SPL_TYPE_UNDEFINED && n1->kind == SPL_TYPE_UNDEFINED) {
return 0;
}
if (n1->kind == SPL_TYPE_UNDEFINED) {
return t2;
}
if (n2->kind == SPL_TYPE_UNDEFINED) {
return t1;
}
if (n1->kind == SPL_TYPE_NULL) {
return (n2->kind == SPL_TYPE_PTR || n2->kind == SPL_TYPE_SLICE) ? t2 : 0;
}
if (n2->kind == SPL_TYPE_NULL) {
return (n1->kind == SPL_TYPE_PTR || n1->kind == SPL_TYPE_SLICE) ? t1 : 0;
}
if (n1->kind != n2->kind) {
return 0;
}
switch (n1->kind) {
case SPL_TYPE_INT:
if (n1->int_type.is_signed != n2->int_type.is_signed) {
return 0;
}
return n1->int_type.bits >= n2->int_type.bits ? t1 : t2;
case SPL_TYPE_FLOAT:
return n1->float_type.bits >= n2->float_type.bits ? t1 : t2;
default:
break;
}
return 0;
}
static bool sema_coerce_for_bool(spl_sema_t *sema, spl_type_id_t from) {
spl_type_id_t bool_tid =
spl_type_node_push(sema->type, (spl_type_node_t){.kind = SPL_TYPE_BOOL});
return sema_coerce(sema, bool_tid, from) == bool_tid;
}
static inline void sema_push_scope(spl_sema_t *sema) {
spl_scope_id_t scope_id = spl_scope_alloc(sema->scope);
sema->store_scope = sema->scope->current_scope;
sema->scope->current_scope = scope_id;
}
static inline void sema_pop_scope(spl_sema_t *sema) {
sema->scope->current_scope = sema->store_scope;
}
static spl_type_id_t sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
if (ref == 0) {
return 0;
}
Assert(sema != NULL);
spl_ast_node_t *n = spl_ast_node(sema->ast, ref);
spl_symbol_t symbol = {0};
Assert(n != NULL);
switch (n->kind) {
case SPL_AST_NONE:
@@ -160,42 +285,59 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
vec_for(n->container_members, i) { sema_parse(sema, vec_at(n->container_members, i)); }
} break;
case SPL_AST_FN_DECL:
break;
case SPL_AST_FN_DEFINE: {
if (n->resolved_def_id == 0) {
Panic("fn `%s` don't collect", n->fn_decl.name);
}
spl_def_node_t *def = spl_type_def(sema->type, n->resolved_def_id);
def->kind = SPL_DEF_FN_PARAMS;
vec_init(def->fn_params_def);
sema_push_scope(sema);
spl_scope_id_t scope_id = spl_scope_alloc(sema->scope);
spl_scope_id_t old_id = sema->scope->current_scope;
sema->scope->current_scope = scope_id;
spl_var_def_vec_t params;
vec_init(params);
vec_for(n->fn_decl.param_list, i) {
spl_ast_node_ref_t ref = vec_at(n->fn_decl.param_list, i);
sema_parse(sema, ref);
def = spl_type_def(sema->type, n->resolved_def_id);
spl_type_id_t tid = sema_parse(sema, ref);
spl_ast_node_t *node = spl_ast_node(sema->ast, ref);
Assert(node->kind == SPL_AST_PARAM_DECL);
spl_var_def_t var_def = {0};
var_def.name = node->param_decl.name;
var_def.type_id = tid;
var_def.def_id = node->resolved_def_id;
var_def.scope_id = sema->scope->current_scope;
vec_push(def->fn_params_def, var_def);
}
vec_for(n->fn_decl.block, i) { sema_parse(sema, vec_at(n->fn_decl.block, i)); }
sema->scope->current_scope = old_id;
vec_push(params, var_def);
// spl_type_def_fn_build(sema->type, n->resolved_def_id, )
if (node->resolved_def_id) {
spl_def_node_t *pd = spl_type_def(sema->type, node->resolved_def_id);
Assert(pd != NULL);
pd->var_def.type_id = tid;
}
}
spl_def_node_t *def2 = spl_type_def(sema->type, n->resolved_def_id);
vec_free(def2->fn_params_def);
def2->fn_params_def = params;
spl_type_id_t ret_id = sema_parse(sema, n->fn_decl.type_expr);
spl_type_def_fn_build(sema->type, n->resolved_def_id, ret_id);
spl_type_id_t old_ret = sema->current_fn_ret_tid;
sema->current_fn_ret_tid = ret_id;
vec_for(n->fn_decl.block, i) { sema_parse(sema, vec_at(n->fn_decl.block, i)); }
sema->current_fn_ret_tid = old_ret;
sema_pop_scope(sema);
} break;
case SPL_AST_TYPE_DECL: {
if (n->type_decl.type_expr)
if (n->type_decl.type_expr) {
sema_parse(sema, n->type_decl.type_expr);
}
} break;
case SPL_AST_VAR_DECL:
case SPL_AST_CONST_DECL: {
if (n->resolved_def_id == 0) {
spl_symbol_t symbol = {0};
symbol.name = n->var_const_decl.name;
symbol.kind = SPL_SYMBOL_KIND_VAR;
symbol.node = spl_type_def_alloc(sema->type);
@@ -205,20 +347,37 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
def->kind = SPL_DEF_VAR;
spl_scope_insert(sema->scope, sema->scope->current_scope, symbol);
}
if (n->var_const_decl.type_expr)
sema_parse(sema, n->var_const_decl.type_expr);
if (n->var_const_decl.expr)
sema_parse(sema, n->var_const_decl.expr);
spl_def_node_t *def = spl_type_def(sema->type, n->resolved_def_id);
Assert(def != NULL);
spl_type_id_t decl_tid = 0;
if (n->var_const_decl.type_expr) {
decl_tid = sema_parse(sema, n->var_const_decl.type_expr);
}
if (n->var_const_decl.expr == 0) {
SPL_ERROR(&n->dbg, "must be assign");
return 0;
}
spl_type_id_t et = sema_parse(sema, n->var_const_decl.expr);
decl_tid = sema_coerce(sema, decl_tid, et);
if (decl_tid == 0) {
SPL_ERROR(&n->dbg, "decl type must not none %d");
sema->error_count += 1;
}
def->type_id = decl_tid;
def->var_def.type_id = decl_tid;
} break;
case SPL_AST_MEMBER_DECL: {
if (n->member_decl.type_expr)
if (n->member_decl.type_expr) {
sema_parse(sema, n->member_decl.type_expr);
}
} break;
case SPL_AST__COMPTIME_STMT:
case SPL_AST__DIRECTIVE_BLOCK:
break;
case SPL_AST_PARAM_DECL: {
if (n->resolved_def_id == 0) {
spl_symbol_t symbol = {0};
symbol.name = n->param_decl.name;
symbol.kind = SPL_SYMBOL_KIND_VAR;
symbol.node = spl_type_def_alloc(sema->type);
@@ -228,19 +387,32 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
def->kind = SPL_DEF_VAR;
spl_scope_insert(sema->scope, sema->scope->current_scope, symbol);
}
if (n->param_decl.type_expr)
sema_parse(sema, n->param_decl.type_expr);
spl_type_id_t ptid = 0;
if (n->param_decl.type_expr) {
ptid = sema_parse(sema, n->param_decl.type_expr);
}
spl_def_node_t *pd = spl_type_def(sema->type, n->resolved_def_id);
pd->var_def.type_id = ptid;
return ptid;
} break;
case SPL_AST_ATTR_ITEM:
vec_for(n->attr_item.expr_list, i) { sema_parse(sema, vec_at(n->attr_item.expr_list, i)); }
break;
case SPL_AST_ARGG_INIT_ITEM: {
if (n->aggregate_init_item.expr)
if (n->aggregate_init_item.expr) {
sema_parse(sema, n->aggregate_init_item.expr);
}
} break;
case SPL_AST_IF_STATEMENT: {
if (n->if_statement.expr)
sema_parse(sema, n->if_statement.expr);
if (!n->if_statement.expr) {
SPL_ERROR(&n->dbg, "if statement not have condition expr");
return 0;
}
spl_type_id_t ct = sema_parse(sema, n->if_statement.expr);
if (!sema_coerce_for_bool(sema, ct)) {
SPL_ERROR(&n->dbg, "if condition must be bool");
sema->error_count++;
}
vec_for(n->if_statement.if_block, i) {
sema_parse(sema, vec_at(n->if_statement.if_block, i));
}
@@ -249,8 +421,9 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
}
} break;
case SPL_AST_IFVAR_STATEMENT: {
if (n->ifvar_statement.packed_expr)
if (n->ifvar_statement.packed_expr) {
sema_parse(sema, n->ifvar_statement.packed_expr);
}
vec_for(n->ifvar_statement.if_block, i) {
sema_parse(sema, vec_at(n->ifvar_statement.if_block, i));
}
@@ -259,8 +432,15 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
}
} break;
case SPL_AST_WHILE_STATEMENT: {
if (n->while_statement.expr)
sema_parse(sema, n->while_statement.expr);
if (!n->while_statement.expr) {
SPL_ERROR(&n->dbg, "while statement not have condition expr");
return 0;
}
spl_type_id_t ct = sema_parse(sema, n->while_statement.expr);
if (!sema_coerce_for_bool(sema, ct)) {
SPL_ERROR(&n->dbg, "while condition must be bool");
sema->error_count++;
}
vec_for(n->while_statement.while_block, i) {
sema_parse(sema, vec_at(n->while_statement.while_block, i));
}
@@ -277,8 +457,9 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
vec_for(n->for_statement.block, i) { sema_parse(sema, vec_at(n->for_statement.block, i)); }
} break;
case SPL_AST_MATCH_STATEMENT: {
if (n->match_statement.expr)
if (n->match_statement.expr) {
sema_parse(sema, n->match_statement.expr);
}
vec_for(n->match_statement.paced_exprs, i) {
sema_parse(sema, vec_at(n->match_statement.paced_exprs, i));
}
@@ -287,7 +468,14 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
}
} break;
case SPL_AST_RET_STATEMENT: {
sema_parse(sema, n->ret_statement.expr);
if (n->ret_statement.expr) {
spl_type_id_t tid = sema_parse(sema, n->ret_statement.expr);
if (sema_coerce(sema, sema->current_fn_ret_tid, tid) != sema->current_fn_ret_tid) {
SPL_ERROR(&n->dbg, "return type not match");
sema->error_count += 1;
}
n->resolved_type_id = sema->current_fn_ret_tid;
}
} break;
case SPL_AST_BREAK_STATEMENT:
case SPL_AST_CONTINUE_STATEMENT:
@@ -305,7 +493,22 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
if (n->packed_expr.expr)
sema_parse(sema, n->packed_expr.expr);
} break;
case SPL_AST_ASSIGN_EXPR:
case SPL_AST_ASSIGN_EXPR: {
spl_type_id_t lt = sema_parse(sema, n->op_expr.left);
if (lt == 0) {
SPL_ERROR(&n->dbg, "assign target has no type");
sema->error_count++;
break;
}
spl_type_id_t rt = sema_parse(sema, n->op_expr.right);
if (sema_coerce(sema, lt, rt) == 0) {
SPL_ERROR(&n->dbg, "assign type mismatch");
sema->error_count++;
break;
}
n->resolved_type_id = lt;
return lt;
}
case SPL_AST_ASSIGN_ADD_EXPR:
case SPL_AST_ASSIGN_SUB_EXPR:
case SPL_AST_ASSIGN_MUL_EXPR:
@@ -315,45 +518,181 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
case SPL_AST_ASSIGN_OR_EXPR:
case SPL_AST_ASSIGN_XOR_EXPR:
case SPL_AST_ASSIGN_LSHIFT_EXPR:
case SPL_AST_ASSIGN_USHIFT_EXPR:
case SPL_AST_ASSIGN_USHIFT_EXPR: {
spl_type_id_t lt = sema_parse(sema, n->op_expr.left);
spl_type_id_t rt = sema_parse(sema, n->op_expr.right);
if (lt == 0) {
SPL_ERROR(&n->dbg, "assign target has no type");
sema->error_count++;
break;
}
if (sema_coerce_balance(sema, lt, rt) != lt) {
SPL_ERROR(&n->dbg, "compound assign result would narrow or mismatch lhs type");
sema->error_count++;
break;
}
n->resolved_type_id = lt;
return lt;
}
case SPL_AST_BOOL_OR_EXPR:
case SPL_AST_BOOL_AND_EXPR:
case SPL_AST_BOOL_AND_EXPR: {
spl_type_id_t lt = sema_parse(sema, n->op_expr.left);
spl_type_id_t rt = sema_parse(sema, n->op_expr.right);
spl_type_node_t *ln = spl_type_node(sema->type, lt);
spl_type_node_t *rn = spl_type_node(sema->type, rt);
if (!ln || ln->kind != SPL_TYPE_BOOL || !rn || rn->kind != SPL_TYPE_BOOL) {
SPL_ERROR(&n->dbg, "logical operands must be bool");
sema->error_count++;
break;
}
spl_type_id_t bt = spl_type_node_push(sema->type, (spl_type_node_t){.kind = SPL_TYPE_BOOL});
n->resolved_type_id = bt;
return bt;
}
case SPL_AST_BIT_OR_EXPR:
case SPL_AST_BIT_XOR_EXPR:
case SPL_AST_BIT_AND_EXPR:
case SPL_AST_BIT_AND_EXPR: {
spl_type_id_t lt = sema_parse(sema, n->op_expr.left);
spl_type_id_t rt = sema_parse(sema, n->op_expr.right);
spl_type_id_t peer = sema_coerce_balance(sema, lt, rt);
spl_type_node_t *pn = spl_type_node(sema->type, peer);
if (!pn || pn->kind != SPL_TYPE_INT) {
SPL_ERROR(&n->dbg, "bitwise operands must be integers");
sema->error_count++;
break;
}
n->resolved_type_id = peer;
return peer;
}
case SPL_AST_CMP_EQ_EXPR:
case SPL_AST_CMP_NE_EXPR:
case SPL_AST_CMP_LE_EXPR:
case SPL_AST_CMP_GE_EXPR:
case SPL_AST_CMP_LT_EXPR:
case SPL_AST_CMP_GT_EXPR:
case SPL_AST_CMP_GT_EXPR: {
spl_type_id_t lt = sema_parse(sema, n->op_expr.left);
spl_type_id_t rt = sema_parse(sema, n->op_expr.right);
if (sema_coerce_balance(sema, lt, rt) == 0) {
SPL_ERROR(&n->dbg, "comparison operands type mismatch");
sema->error_count++;
break;
}
spl_type_id_t bt = spl_type_node_push(sema->type, (spl_type_node_t){.kind = SPL_TYPE_BOOL});
n->resolved_type_id = bt;
return bt;
}
case SPL_AST_RANGE_EXPR:
break;
case SPL_AST_LSHIFT_EXPR:
case SPL_AST_RSHIFT_EXPR:
case SPL_AST_RSHIFT_EXPR: {
spl_type_id_t lt = sema_parse(sema, n->op_expr.left);
spl_type_id_t rt = sema_parse(sema, n->op_expr.right);
spl_type_node_t *ln = spl_type_node(sema->type, lt);
spl_type_node_t *rn = spl_type_node(sema->type, rt);
if (!ln || ln->kind != SPL_TYPE_INT || !rn || rn->kind != SPL_TYPE_INT) {
SPL_ERROR(&n->dbg, "shift operands must be integers");
sema->error_count++;
break;
}
n->resolved_type_id = lt;
return lt;
}
case SPL_AST_ADD_EXPR:
case SPL_AST_SUB_EXPR:
case SPL_AST_MUL_EXPR:
case SPL_AST_DIV_EXPR:
case SPL_AST_MOD_EXPR:
if (n->op_expr.left)
sema_parse(sema, n->op_expr.left);
if (n->op_expr.right)
sema_parse(sema, n->op_expr.right);
case SPL_AST_MOD_EXPR: {
spl_type_id_t lt = sema_parse(sema, n->op_expr.left);
spl_type_id_t rt = sema_parse(sema, n->op_expr.right);
spl_type_id_t peer = sema_coerce_balance(sema, lt, rt);
spl_type_node_t *pn = spl_type_node(sema->type, peer);
if (!pn || (pn->kind != SPL_TYPE_INT && pn->kind != SPL_TYPE_FLOAT)) {
SPL_ERROR(&n->dbg, "arithmetic operands type mismatch");
sema->error_count++;
break;
case SPL_AST_MINUS_EXPR:
case SPL_AST_NOT_EXPR:
case SPL_AST_BIT_NOT_EXPR:
}
n->resolved_type_id = peer;
return peer;
}
case SPL_AST_MINUS_EXPR: {
spl_ast_node_t *op = spl_ast_node(sema->ast, n->prefix_expr.postfix_expr);
if (op && op->kind == SPL_AST_EXPR_INTEGER_LIT) {
spl_type_id_t ct = spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = 0,
.int_type.is_signed = true,
});
n->resolved_type_id = ct;
return ct;
}
if (op && op->kind == SPL_AST_EXPR_FLOAT_LIT) {
spl_type_id_t ct = spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_FLOAT,
.float_type.bits = 0,
});
n->resolved_type_id = ct;
return ct;
}
spl_type_id_t t = sema_parse(sema, n->prefix_expr.postfix_expr);
spl_type_node_t *tn = spl_type_node(sema->type, t);
if (!tn || (tn->kind != SPL_TYPE_INT && tn->kind != SPL_TYPE_FLOAT)) {
SPL_ERROR(&n->dbg, "unary minus requires numeric operand");
sema->error_count++;
break;
}
n->resolved_type_id = t;
return t;
}
case SPL_AST_NOT_EXPR: {
spl_type_id_t t = sema_parse(sema, n->prefix_expr.postfix_expr);
spl_type_node_t *tn = spl_type_node(sema->type, t);
if (!tn || tn->kind != SPL_TYPE_BOOL) {
SPL_ERROR(&n->dbg, "`not` requires bool operand");
sema->error_count++;
break;
}
spl_type_id_t bt = spl_type_node_push(sema->type, (spl_type_node_t){.kind = SPL_TYPE_BOOL});
n->resolved_type_id = bt;
return bt;
}
case SPL_AST_BIT_NOT_EXPR: {
spl_type_id_t t = sema_parse(sema, n->prefix_expr.postfix_expr);
spl_type_node_t *tn = spl_type_node(sema->type, t);
if (!tn || tn->kind != SPL_TYPE_INT) {
SPL_ERROR(&n->dbg, "bitnot requires integer operand");
sema->error_count++;
break;
}
n->resolved_type_id = t;
return t;
}
case SPL_AST_ADDRESS_EXPR:
if (n->prefix_expr.postfix_expr)
sema_parse(sema, n->prefix_expr.postfix_expr);
break;
case SPL_AST_CALL_EXPR:
if (n->postfix_expr.primary_expr)
sema_parse(sema, n->postfix_expr.primary_expr);
vec_for(n->postfix_expr.call_expr, i) {
sema_parse(sema, vec_at(n->postfix_expr.call_expr, i));
}
case SPL_AST_CALL_EXPR: {
spl_type_id_t fnt = sema_parse(sema, n->postfix_expr.primary_expr);
spl_type_node_t *fn = spl_type_node(sema->type, fnt);
if (!fn || fn->kind != SPL_TYPE_FN) {
SPL_ERROR(&n->dbg, "call target is not a function");
sema->error_count++;
break;
}
if (vec_size(n->postfix_expr.call_expr) != vec_size(fn->fn_type.params)) {
SPL_ERROR(&n->dbg, "call argument count mismatch");
sema->error_count++;
break;
}
vec_for(n->postfix_expr.call_expr, i) {
spl_type_id_t at = sema_parse(sema, vec_at(n->postfix_expr.call_expr, i));
if (sema_coerce(sema, vec_at(fn->fn_type.params, i), at) == 0) {
SPL_ERROR(&n->dbg, "call argument type mismatch");
sema->error_count++;
}
}
n->resolved_type_id = fn->fn_type.ret;
return fn->fn_type.ret;
}
case SPL_AST_FIELD_EXPR:
case SPL_AST_DEREF_EXPR:
if (n->postfix_expr.primary_expr)
@@ -373,38 +712,84 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
if (n->postfix_expr.slice_expr.end)
sema_parse(sema, n->postfix_expr.slice_expr.end);
break;
case SPL_AST_AS_EXPR:
if (n->postfix_expr.primary_expr)
sema_parse(sema, n->postfix_expr.primary_expr);
if (n->postfix_expr.type_expr)
sema_parse(sema, n->postfix_expr.type_expr);
case SPL_AST_AS_EXPR: {
spl_type_id_t st = sema_parse(sema, n->postfix_expr.primary_expr);
spl_type_id_t tt = sema_parse(sema, n->postfix_expr.type_expr);
spl_type_node_t *sn = spl_type_node(sema->type, st);
if (tt == 0 || !sn ||
(sn->kind != SPL_TYPE_INT && sn->kind != SPL_TYPE_FLOAT && sn->kind != SPL_TYPE_BOOL)) {
SPL_ERROR(&n->dbg, "invalid `as` cast");
sema->error_count++;
break;
case SPL_AST_EXPR_INTEGER_LIT:
case SPL_AST_EXPR_FLOAT_LIT:
}
n->resolved_type_id = tt;
return tt;
}
case SPL_AST_EXPR_INTEGER_LIT: {
spl_type_id_t ct = spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = 0,
.int_type.is_signed = true,
});
n->resolved_type_id = ct;
return ct;
}
case SPL_AST_EXPR_FLOAT_LIT: {
spl_type_id_t ct = spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_FLOAT,
.float_type.bits = 0,
});
n->resolved_type_id = ct;
return ct;
}
case SPL_AST_EXPR_CHAR_LIT:
case SPL_AST_EXPR_STRING_LIT:
case SPL_AST_EXPR_TRUE:
case SPL_AST_EXPR_FALSE:
case SPL_AST_EXPR_NULL:
case SPL_AST_EXPR_UNDEFINED:
break;
case SPL_AST_EXPR_NULL: {
spl_type_id_t nt = spl_type_node_push(sema->type, (spl_type_node_t){.kind = SPL_TYPE_NULL});
n->resolved_type_id = nt;
return nt;
}
case SPL_AST_EXPR_TRUE:
case SPL_AST_EXPR_FALSE: {
spl_type_id_t bt = spl_type_node_push(sema->type, (spl_type_node_t){.kind = SPL_TYPE_BOOL});
n->resolved_type_id = bt;
return bt;
}
case SPL_AST_EXPR_UNDEFINED: {
spl_type_id_t ut =
spl_type_node_push(sema->type, (spl_type_node_t){.kind = SPL_TYPE_UNDEFINED});
n->resolved_type_id = ut;
return ut;
}
case SPL_AST_EXPR_IDENT: {
spl_symbol_t symbol = {0};
if (!spl_scope_find(sema->scope, n->primary_expr.ident, &symbol)) {
SPL_ERROR(&n->dbg, "can't find ident `%s`", n->primary_expr.ident);
return;
sema->error_count++;
return 0;
}
Assert(symbol.node != 0);
n->resolved_def_id = symbol.node;
} break;
spl_def_node_t *d = spl_type_def(sema->type, symbol.node);
if (!d) {
return 0;
}
if (d->kind == SPL_DEF_VAR || d->kind == SPL_DEF_MEMBER) {
return d->var_def.type_id;
}
return d->type_id;
}
case SPL_AST_ARGGREGATE_INIT:
vec_for(n->primary_expr.aggregate_init.expr, i) {
sema_parse(sema, vec_at(n->primary_expr.aggregate_init.expr, i));
}
break;
case SPL_AST_EXPR_EXPR:
if (n->primary_expr.expr)
sema_parse(sema, n->primary_expr.expr);
break;
case SPL_AST_EXPR_EXPR: {
spl_type_id_t t = sema_parse(sema, n->primary_expr.expr);
n->resolved_type_id = t;
return t;
}
case SPL_AST_ARRAY_LIT:
if (n->primary_expr.array_lit_expr.type_expr)
sema_parse(sema, n->primary_expr.array_lit_expr.type_expr);
@@ -460,20 +845,85 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
}
break;
case SPL_AST_TYPE_VOID:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_VOID,
});
case SPL_AST_TYPE_BOOL:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_BOOL,
});
case SPL_AST_TYPE_OPAQUE:
break;
case SPL_AST_TYPE_I8:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = 8,
.int_type.is_signed = true,
});
case SPL_AST_TYPE_U8:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = 8,
.int_type.is_signed = false,
});
case SPL_AST_TYPE_I16:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = 16,
.int_type.is_signed = true,
});
case SPL_AST_TYPE_U16:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = 16,
.int_type.is_signed = false,
});
case SPL_AST_TYPE_I32:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = 32,
.int_type.is_signed = true,
});
case SPL_AST_TYPE_U32:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = 32,
.int_type.is_signed = false,
});
case SPL_AST_TYPE_I64:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = 64,
.int_type.is_signed = true,
});
case SPL_AST_TYPE_U64:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = 64,
.int_type.is_signed = false,
});
case SPL_AST_TYPE_ISIZE:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = sizeof(void *) * 8, /* FIXME */
.int_type.is_signed = true,
});
case SPL_AST_TYPE_USIZE:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_INT,
.int_type.bits = sizeof(void *) * 8, /* FIXME */
.int_type.is_signed = false,
});
case SPL_AST_TYPE__F32:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_FLOAT,
.float_type.bits = 32,
});
case SPL_AST_TYPE__F64:
return spl_type_node_push(sema->type, (spl_type_node_t){
.kind = SPL_TYPE_FLOAT,
.float_type.bits = 64,
});
case SPL_AST_TYPE_ANY:
case SPL_AST_TYPE_IDENT:
break;
@@ -481,6 +931,7 @@ static void sema_parse(spl_sema_t *sema, spl_ast_node_ref_t ref) {
UNREACHABLE();
break;
}
return 0;
}
void spl_sema_init(spl_sema_t *sema, spl_ast_t *ast, spl_type_t *type, spl_scope_t *scope) {
@@ -489,6 +940,7 @@ void spl_sema_init(spl_sema_t *sema, spl_ast_t *ast, spl_type_t *type, spl_scope
sema->type = type;
sema->scope = scope;
sema->error_count = 0;
sema->current_fn_ret_tid = 0;
sema->root = (spl_symbol_t){0};
}

2
stage1/spl_sema.h
View File

@@ -43,6 +43,8 @@ typedef struct {
spl_scope_t *scope;
spl_symbol_t root;
int error_count;
spl_scope_id_t store_scope;
spl_type_id_t current_fn_ret_tid; // TODO
} spl_sema_t;
void spl_sema_init(spl_sema_t *sema, spl_ast_t *ast, spl_type_t *type, spl_scope_t *scope);

18
stage1/spl_type.c
View File

@@ -6,6 +6,8 @@ static usize spl_type_hash(spl_type_node_t n) {
case SPL_TYPE_ERROR:
case SPL_TYPE_VOID:
case SPL_TYPE_BOOL:
case SPL_TYPE_UNDEFINED:
case SPL_TYPE_NULL:
break;
case SPL_TYPE_INT:
hash += n.int_type.bits + n.int_type.is_signed;
@@ -54,6 +56,8 @@ static int spl_type_eq(spl_type_node_t n1, spl_type_node_t n2) {
case SPL_TYPE_ERROR:
case SPL_TYPE_VOID:
case SPL_TYPE_BOOL:
case SPL_TYPE_UNDEFINED:
case SPL_TYPE_NULL:
break;
case SPL_TYPE_INT:
if (n1.int_type.bits != n2.int_type.bits)
@@ -318,11 +322,25 @@ void spl_type_pure_dump(spl_type_t *type, spl_type_id_t id) {
case SPL_TYPE_BOOL:
printf("bool");
break;
case SPL_TYPE_UNDEFINED:
printf("undefined");
break;
case SPL_TYPE_NULL:
printf("null");
break;
case SPL_TYPE_INT:
if (n->int_type.bits == 0) {
printf("comptime_int");
} else {
printf("%s%zu", n->int_type.is_signed ? "i" : "u", n->int_type.bits);
}
break;
case SPL_TYPE_FLOAT:
if (n->float_type.bits == 0) {
printf("comptime_float");
} else {
printf("f%zu", n->float_type.bits);
}
break;
case SPL_TYPE_PTR:
printf("*");

2
stage1/spl_type.h
View File

@@ -15,6 +15,8 @@ typedef enum {
SPL_TYPE_BOOL,
SPL_TYPE_INT,
SPL_TYPE_FLOAT,
SPL_TYPE_UNDEFINED, // 自动配对任意类型的字面量，值为 undefined
SPL_TYPE_NULL, // 自动配对指针/切片的字面量，值为 0
SPL_TYPE_PTR,
SPL_TYPE_SLICE, // 未来拥有泛型后删除
SPL_TYPE_RANGE, // 未来拥有泛型后删除