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Basic support for templates in ast, rest will come with types

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This commit is contained in:
Nathan Braswell
2018-06-22 09:02:30 -04:00
parent a8d4b4eb7f
commit 6ffe7aee46
5 changed files with 130 additions and 20 deletions
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35
k.krak
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@@ -166,24 +166,34 @@ fun syntax_to_ast(file_name: str, syntax: *tree<symbol>): *tree<ast> {
if (syntax->data.name == "import") {
return _import(from_vector(syntax->children.slice(2,-1).filter(fun(s:*tree<symbol>):bool {
return s->data.name == "identifier" || s->data.data == "*"
}).map(fun(s: *tree<symbol>): str {
return concat(s)
})), vec(syntax_to_ast_helper(syntax->children[1])))
}).map(concat)), vec(syntax_to_ast_helper(syntax->children[1])))
} else if (syntax->data.name == "function")
return _function(concat(get_node("func_identifier", syntax)), null<type>(),
(get_nodes("typed_parameter", syntax) +
get_nodes("statement", syntax)).map(syntax_to_ast_helper))
else if (syntax->data.name == "typed_parameter")
return _identifier(concat(get_node("identifier", syntax)), null<type>())
else if (syntax->data.name == "type_def")
return _type_def(concat(get_node("identifier", syntax)),
else if (syntax->data.name == "type_def") {
var n = _type_def(concat(get_node("identifier", syntax)),
get_nodes("declaration_statement", syntax).map(syntax_to_ast_helper))
else if (syntax->data.name == "adt_def")
return _type_def(concat(get_node("identifier", syntax)),
var template = get_node("template_dec", syntax)
if (template == null<tree<symbol>>()) {
return n
} else {
return _template(n->data._type_def, from_vector(get_nodes("template_param", template).map(concat)), vec(n))
}
} else if (syntax->data.name == "adt_def") {
var n = _adt_def(concat(get_node("identifier", syntax)),
get_nodes("adt_option", syntax).map(fun(s: *tree<symbol>): *tree<ast> {
return _identifier(concat(get_node("identifier", s)), null<type>())
}))
else if (syntax->data.name == "statement")
var template = get_node("template_dec", syntax)
if (template == null<tree<symbol>>()) {
return n
} else {
return _template(n->data._adt_def, from_vector(get_nodes("template_param", template).map(concat)), vec(n))
}
} else if (syntax->data.name == "statement")
return syntax_to_ast_helper(syntax->children[0])
else if (syntax->data.name == "code_block")
return _block(syntax->children.map(syntax_to_ast_helper))
@@ -205,7 +215,7 @@ fun syntax_to_ast(file_name: str, syntax: *tree<symbol>): *tree<ast> {
syntax_to_ast_helper(syntax->children[0]),
syntax_to_ast_helper(syntax->children[2])))
else if (syntax->data.name == "function_call")
return _call(syntax->children.map(fun(s: *tree<symbol>): *tree<ast> {
return _call(vec(syntax_to_ast_helper(syntax->children[0])) + get_nodes("parameter", syntax).map(fun(s: *tree<symbol>): *tree<ast> {
return syntax_to_ast_helper(s->children[0])
}))
else if (syntax->data.name == "boolean_expression" ||
@@ -223,7 +233,12 @@ fun syntax_to_ast(file_name: str, syntax: *tree<symbol>): *tree<ast> {
if (syntax->children.size == 1) {
return syntax_to_ast_helper(syntax->children[0])
} else if (syntax->children.size == 2) {
if (syntax->children[0]->data.terminal) {
var template_inst = get_node("template_inst", syntax)
if (template_inst != null<tree<symbol>>()) {
if (syntax->children[0]->data.name != "scoped_identifier")
error(syntax, "Unexpected template instantiation (not on an identifier)")
return _binding(concat(syntax->children[0]) + "<somin>", vec<*type>(), null<tree<ast>>())
} else if (syntax->children[0]->data.terminal) {
return _call(vec(_binding(concat(syntax->children[0]), null<tree<ast>>()),
syntax_to_ast_helper(syntax->children[1])))
} else {