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Bug Fixes: some assertions; variable inits;

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Remove some dead code
This commit is contained in:
Ginger Bill
2016-09-24 22:55:17 +01:00
parent ff229054a1
commit 70f3361a34
11 changed files with 103 additions and 140 deletions
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src/checker/stmt.cpp
+6 -61
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@@ -9,7 +9,6 @@ enum StmtFlag : u32 {
void check_stmt(Checker *c, AstNode *node, u32 flags);
void check_proc_decl(Checker *c, Entity *e, DeclInfo *d);
void check_const_decl_node(Checker *c, AstNode *node);
void check_stmt_list(Checker *c, AstNodeArray stmts, u32 flags) {
// TODO(bill): Allow declaration (expect variable) in any order
@@ -474,7 +473,7 @@ void check_type_decl(Checker *c, Entity *e, AstNode *type_expr, Type *def, Cycle
named->Named.base = base_type;
named->Named.base = get_base_type(named->Named.base);
if (named->Named.base == t_invalid) {
// gb_printf("check_type_decl: %s\n", type_to_string(named));
gb_printf("check_type_decl: %s\n", type_to_string(named));
}
}
@@ -719,18 +718,11 @@ void check_entity_decl(Checker *c, Entity *e, DeclInfo *d, Type *named_type, Cyc
}
}
// c->context.decl = d;
// Scope *prev = c->context.scope;
// c->context.scope = d->scope;
// defer (c->context.scope = prev);
if (e->kind == Entity_Procedure) {
check_proc_decl(c, e, d);
return;
}
switch (e->kind) {
case Entity_Constant: {
Scope *prev = c->context.scope;
@@ -758,15 +750,7 @@ void check_entity_decl(Checker *c, Entity *e, DeclInfo *d, Type *named_type, Cyc
c->context.scope = d->scope;
defer (c->context.scope = prev);
CycleChecker local_cycle_checker = {};
if (cycle_checker == NULL) {
cycle_checker = &local_cycle_checker;
}
check_type_decl(c, e, d->type_expr, named_type, cycle_checker);
if (local_cycle_checker.path != NULL) {
gb_array_free(local_cycle_checker.path);
}
} break;
}
}
@@ -782,8 +766,8 @@ void check_var_decl_node(Checker *c, AstNode *node) {
gb_for_array(i, vd->names) {
AstNode *name = vd->names[i];
Entity *entity = NULL;
Token token = name->Ident;
if (name->kind == AstNode_Ident) {
Token token = name->Ident;
String str = token.string;
Entity *found = NULL;
// NOTE(bill): Ignore assignments to `_`
@@ -803,10 +787,11 @@ void check_var_decl_node(Checker *c, AstNode *node) {
entity = found;
}
} else {
error(token, "A variable declaration must be an identifier");
error(ast_node_token(name), "A variable declaration must be an identifier");
}
if (entity == NULL) {
entity = make_entity_dummy_variable(c->allocator, c->global_scope, ast_node_token(name));
}
if (entity == NULL)
entity = make_entity_dummy_variable(c->allocator, c->global_scope, token);
entities[entity_index++] = entity;
}
@@ -841,46 +826,6 @@ void check_var_decl_node(Checker *c, AstNode *node) {
}
void check_const_decl_node(Checker *c, AstNode *node) {
ast_node(vd, ConstDecl, node);
isize entity_count = gb_array_count(vd->names);
isize entity_index = 0;
Entity **entities = gb_alloc_array(c->allocator, Entity *, entity_count);
gb_for_array(i, vd->values) {
AstNode *name = vd->names[i];
AstNode *value = vd->values[i];
GB_ASSERT(name->kind == AstNode_Ident);
ExactValue v = {ExactValue_Invalid};
String str = name->Ident.string;
Entity *found = current_scope_lookup_entity(c->context.scope, str);
if (found == NULL) {
Entity *e = make_entity_constant(c->allocator, c->context.scope, name->Ident, NULL, v);
entities[entity_index++] = e;
check_const_decl(c, e, vd->type, value);
} else {
entities[entity_index++] = found;
}
}
isize lhs_count = gb_array_count(vd->names);
isize rhs_count = gb_array_count(vd->values);
// TODO(bill): Better error messages or is this good enough?
if (rhs_count == 0 && vd->type == NULL) {
error(ast_node_token(node), "Missing type or initial expression");
} else if (lhs_count < rhs_count) {
error(ast_node_token(node), "Extra initial expression");
}
gb_for_array(i, vd->names) {
add_entity(c, c->context.scope, vd->names[i], entities[i]);
}
}
void check_stmt(Checker *c, AstNode *node, u32 flags) {
u32 mod_flags = flags & (~Stmt_FallthroughAllowed);