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Add static type checks in the parser

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- Resolve types for all identifiers.
- Error when identifier is not found.
- Match return type and error when not returning a value when it should.
- Check unreachable code (code after sure return).
- Match argument count and types for function calls.
- Determine if return type of function call matches the assignment.
- Do static type check with match statement when possible.
- Use type hints to determine export type.
- Check compatibility between type hint and explicit export type.
This commit is contained in:
George Marques
2018-05-29 23:16:54 -03:00
parent f7793fc5c9
commit 743053734f
9 changed files with 2984 additions and 286 deletions
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main/tests/test_gdscript.cpp
+3 -12
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@@ -193,14 +193,6 @@ static String _parser_expr(const GDScriptParser::Node *p_expr) {
case GDScriptParser::OperatorNode::OP_BIT_INVERT: {
txt = "~" + _parser_expr(c_node->arguments[0]);
} break;
case GDScriptParser::OperatorNode::OP_PREINC: {
} break;
case GDScriptParser::OperatorNode::OP_PREDEC: {
} break;
case GDScriptParser::OperatorNode::OP_INC: {
} break;
case GDScriptParser::OperatorNode::OP_DEC: {
} break;
case GDScriptParser::OperatorNode::OP_IN: {
txt = _parser_expr(c_node->arguments[0]) + " in " + _parser_expr(c_node->arguments[1]);
} break;
@@ -455,10 +447,9 @@ static void _parser_show_class(const GDScriptParser::ClassNode *p_class, int p_i
print_line("\n");
}
for (int i = 0; i < p_class->constant_expressions.size(); i++) {
const GDScriptParser::ClassNode::Constant &constant = p_class->constant_expressions[i];
_print_indent(p_indent, "const " + String(constant.identifier) + "=" + _parser_expr(constant.expression));
for (Map<StringName, GDScriptParser::ClassNode::Constant>::Element *E = p_class->constant_expressions.front(); E; E = E->next()) {
const GDScriptParser::ClassNode::Constant &constant = E->get();
_print_indent(p_indent, "const " + String(E->key()) + "=" + _parser_expr(constant.expression));
}
for (int i = 0; i < p_class->variables.size(); i++) {