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|
uint16 NTYPE_MODULE = 0
uint16 NTYPE_EXPORT = 1
uint16 NTYPE_STRUCT = 2
uint16 NTYPE_TYPE = 3
uint16 NTYPE_ID = 4
uint16 NTYPE_BIN_OP = 5
uint16 NTYPE_PRE_OP = 6
uint16 NTYPE_POST_OP = 7
uint16 NTYPE_FUNCTION = 8
uint16 NTYPE_METHOD = 9
uint16 NTYPE_ASM = 998
struct Node {
uint16 _type,
~uint8 data,
utils.Vector sub
}
/; method Node
/; init (uint16 _type, ~uint8 data)
self.data = data
self._type = _type
Node n
self.sub.init(len n)
;/
/; end
_delete(self.data)
/; loop (uint i = 0; i < self.sub.count) [i++]
~Node cur = self.sub.get(i)
cur`.end()
;/
self.sub.end()
;/
;/
/; _ast_import(~utils.File fin, ~Node mod, ~Token first)
Token tmp = produce_next_token(fin, first`)
first`.end()
first` = tmp
~uint8 path = utils.unquote_str(tmp.data)
utils.File _import = fin`.relative(path)
_delete(path)
path = _import.path.to_cstr('/')
_printf("Importing ./\0")
_printf(path)
_printf("\n\0")
_delete(path)
_ast_file(~_import, mod)
_import.end()
;/
/; _get_closing_delim(uint8 ch) [uint8]
/; if (ch == '/' || ch == ';')
return ';'
;; else if (ch == '(')
return ')'
;; else if (ch == '{')
return '}'
;; else if (ch == '[')
return ']'
;/
return 0
;/
/; _ast_type (~utils.File fin, ~Node mod, ~Token first)
;/
/; _ast_decl_list (~utils.File fin, ~Node mod, ~Token first)
;/
/; _ast_type_list (~utils.File fin, ~Node mod, ~Token first)
;/
/; _ast_struct (~utils.File fin, ~Node mod, ~Token first)
Token tmp = produce_next_token(fin, first`)
first`.end()
first` = tmp
/; if (tmp._type !== TTYPE_USRWD)
_printf("Unexpected token after struct keyword:\n\0")
_printf(" \0")
print_token(tmp)
_printf("\n\0")
return
;/
Node out
out.init(NTYPE_STRUCT, tmp.data)
first` = produce_next_token(fin, tmp)
_ast_decl_list(fin, out, first)
mod`.sub.push(~out)
;/
/; _ast_method (~utils.File fin, ~Node mod, ~Token first)
Token tmp = produce_next_token(fin, first`)
first`.end()
first` = tmp
/; if (tmp._type !== TTYPE_USRWD)
_printf("Expected a user-defined type after 'method':\n\0")
_printf(" \0")
print_token(tmp)
_printf("\n\0")
return
;/
Node out
out.init(NTYPE_METHOD, tmp.data)
tmp = produce_next_token(fin, tmp)
first` = tmp
/; loop (first`._type !== TTYPE_ERR && first`.eq(";;\0") == false && first`.eq(";/\0") == false)
/; if (first`.eq("/;\0") == true)
tmp = produce_next_token(fin, tmp)
first`.end()
first` = tmp
_ast_function(fin, ~out, first)
/; loop (first`.eq(";;") == true)
tmp = produce_next_token(fin, tmp)
first`.end()
first` = tmp
_ast_function(fin, ~out, first)
;/
;; else
_printf("Expected only function blocks in method block:\n\0")
_printf(" \0")
print_token(tmp)
_printf("\n\0")
tmp = produce_next_token(fin, tmp)
first`.end()
first` = tmp
;/
;/
mod`.sub.push(~out)
;/
/; _ast_asm(~utils.File fin, ~Node mod, ~Token first)
Token tmp = produce_next_token(fin, first`)
first`.end()
first` = tmp
/; if (tmp._type !== TTYPE_LITRL || tmp.data{0} !== '"')
_printf("Expected string token after 'asm' keyword:\n\0")
_printf(" \0")
print_token(tmp)
_printf("\n\0")
return
;/
Node out
out.init(NTYPE_ASM, utils.unquote_str(tmp.data))
mod`.sub.push(~out)
first` = produce_next_token(fin, tmp)
tmp.end()
;/
/; _ast_function (~utils.File fin, ~Node mod, ~Token first)
Token tmp = produce_next_token(fin, first`)
first`.end()
first` = tmp
/; if (tmp._type !== TTYPE_USRWD)
_printf("Expected function name (Compiler bug, not user program issue):\n\0")
_printf(" \0")
print_token(tmp)
_printf("\n\0")
return
;/
;/
/; _ast_block (~utils.File fin, ~Node mod, ~Token first)
Token tmp = produce_next_token(fin, first`)
first`.end()
first` = tmp
/; if (tmp._type == TTYPE_USRWD)
_ast_function(fin, mod, first)
;; else if (tmp.eq("method\0") == true)
_ast_method(fin, mod, first)
;; else if (tmp.eq("module\0") == true || tmp.eq("export\0") == true)
_ast_module(fin, mod, first)
;; else
_printf("Expected function definition, 'method', or 'module' after block opening (root of file or module):\n\0")
_printf(" \0")
print_token(tmp)
_printf("\n\0")
;/
/; if (first`.eq(";;\0") == true)
_ast_block(fin, mod, first)
;; else
tmp = produce_next_token(fin, first`)
first`.end()
first` = tmp
;/
;/
/; _ast_module (~utils.File fin, ~Node mod, ~Token first)
Token tmp
uint16 _type = NTYPE_MODULE
/; if (first`.eq("export\0"))
_type = NTYPE_EXPORT
tmp = produce_next_token(fin, first`)
first`.end()
first` = tmp
;/
tmp = produce_next_token(fin, first`)
first`.end()
first` = tmp
/; if (tmp._type !== TTYPE_USRWD)
_printf("Expected module name: \0")
print_token(tmp)
return
;/
Node out
out.init(_type, tmp.data)
tmp = produce_next_token(fin, first`)
first` = tmp
/; loop(first`._type !== TTYPE_ERR && first`.eq(";;\0") == false && first`.eq(";/\0") == false)
/; if (first`.eq("import\0") == true)
_ast_import(fin, ~out, first)
;; else if (first`.eq("struct\0") == true)
_ast_struct(fin, ~out, first)
;; else if (first`.eq("/;\0") == true)
_ast_block(fin, ~out, first)
;; else
tmp = produce_next_token(fin, first`)
first`.end()
first` = tmp
;/
;/
mod`.sub.push(~out)
;/
/; _ast_file (~utils.File fin, ~Node mod)
fin`.open()
Token first = produce_first_token(fin)
/; loop (first._type !== TTYPE_ERR)
/; if (first.eq("import\0") == true)
_ast_import(fin, mod, ~first)
;; else if (first.eq("struct\0") == true)
_ast_struct(fin, mod, ~first)
;; else if (first.eq("/;\0") == true)
_ast_block(fin, mod, ~first)
;; else
Token tmp = produce_next_token(fin, first)
first.end()
first = tmp
;/
;/
fin`.close()
;/
/; generate_ast (~utils.File fin) [Node]
Node out
utils.Vector v
v.init(1)
out.init(NTYPE_MODULE, v.as_cstr())
_ast_file(fin, ~out)
return out
;/
#
# Print out the AST from a specific node
#
/; print_node_type (~Node n)
/; if (n`._type == NTYPE_MODULE)
_printf("Mod\0")
;; else if (n`._type == NTYPE_EXPORT)
_printf("Exported Module\0")
;; else if (n`._type == NTYPE_STRUCT)
_printf("Struct\0")
;; else if (n`._type == NTYPE_ID)
_printf("ID\0")
;; else if (n`._type == NTYPE_BIN_OP)
_printf("Binary OP\0")
;; else if (n`._type == NTYPE_PRE_OP)
_printf("Pre OP\0")
;; else if (n`._type == NTYPE_POST_OP)
_printf("Post OP\0")
;; else if (n`._type == NTYPE_FUNCTION)
_printf("Function\0")
;; else if (n`._type == NTYPE_METHOD)
_printf("Method\0")
;; else if (n`._type == NTYPE_ASM)
_printf("ASM\0")
;/
;/
/; print_node_head (~Node n)
_printf("{ NODE_TYPE: \0")
print_node_type(n)
_printf(", DATA: \0")
_printf(n`.data)
_printf("\n\0")
;/
/; print_ast_rec(~Node n, uint depth)
/; loop (int i = 0; i < depth) [i++]
_printf(" \0")
;/
print_node_head(n)
/; loop (uint i = 0; i < n`.sub.count) [i++]
~Node s = n`.sub.get(i)
print_ast_rec(s, depth + 1)
;/
/; loop (int i = 0; i < depth) [i++]
_printf(" \0")
;/
_printf("}\n\0")
;/
/; print_ast (~Node n)
print_ast_rec(n, 0)
;/
|
