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break, continue outside of a loop, match statement handled

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(cherry picked from commit c076a2b7e9)
This commit is contained in:
Thakee Nathees 2020-03-02 17:02:23 +05:30 committed by Rémi Verschelde
parent 000899647a
commit 9ee77179b5
2 changed files with 36 additions and 2 deletions
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33
modules/gdscript/gdscript_parser.cpp
View file

@ -3092,6 +3092,8 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) {
cf_while->body = alloc_node<BlockNode>();
cf_while->body->parent_block = p_block;
cf_while->body->can_break = true;
cf_while->body->can_continue = true;
p_block->sub_blocks.push_back(cf_while->body);
if (!_enter_indent_block(cf_while->body)) {
@ -3211,6 +3213,8 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) {
cf_for->body = alloc_node<BlockNode>();
cf_for->body->parent_block = p_block;
cf_for->body->can_break = true;
cf_for->body->can_continue = true;
p_block->sub_blocks.push_back(cf_for->body);
if (!_enter_indent_block(cf_for->body)) {
@ -3240,6 +3244,20 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) {
p_block->statements.push_back(cf_for);
} break;
case GDScriptTokenizer::TK_CF_CONTINUE: {
BlockNode *upper_block = p_block;
bool is_continue_valid = false;
while (upper_block) {
if (upper_block->can_continue) {
is_continue_valid = true;
break;
}
upper_block = upper_block->parent_block;
}
if (!is_continue_valid) {
_set_error("Unexpected keyword \"continue\" outside a loop.");
return;
}
_mark_line_as_safe(tokenizer->get_token_line());
tokenizer->advance();
@ -3252,6 +3270,20 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) {
}
} break;
case GDScriptTokenizer::TK_CF_BREAK: {
BlockNode *upper_block = p_block;
bool is_break_valid = false;
while (upper_block) {
if (upper_block->can_break) {
is_break_valid = true;
break;
}
upper_block = upper_block->parent_block;
}
if (!is_break_valid) {
_set_error("Unexpected keyword \"break\" outside a loop.");
return;
}
_mark_line_as_safe(tokenizer->get_token_line());
tokenizer->advance();
@ -3320,6 +3352,7 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) {
BlockNode *compiled_branches = alloc_node<BlockNode>();
compiled_branches->parent_block = p_block;
compiled_branches->parent_class = p_block->parent_class;
compiled_branches->can_continue = true;
p_block->sub_blocks.push_back(compiled_branches);

5
modules/gdscript/gdscript_parser.h
View file

@ -240,7 +240,9 @@ public:
BlockNode *parent_block;
List<Node *> statements;
Map<StringName, LocalVarNode *> variables;
bool has_return;
bool has_return = false;
bool can_break = false;
bool can_continue = false;
Node *if_condition; //tiny hack to improve code completion on if () blocks
@ -253,7 +255,6 @@ public:
end_line = -1;
parent_block = NULL;
parent_class = NULL;
has_return = false;
}
};