Allow multiple variable declarations with a single type
This commit is contained in:
62
source.elna
62
source.elna
@ -30,8 +30,8 @@ const
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TOKEN_NOT* = 25
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TOKEN_RETURN* = 26
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TOKEN_CAST* = 27
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TOKEN_AS* = 28
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TOKEN_SIZEOF* = 29
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TOKEN_SHIFT_LEFT* = 28
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TOKEN_SHIFT_RIGHT* = 29
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TOKEN_LEFT_PAREN* = 30
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TOKEN_RIGHT_PAREN* = 31
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TOKEN_LEFT_SQUARE* = 32
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@ -172,7 +172,8 @@ end
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proc write_i(value: Int);
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var
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digit: Int, n: Word,
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digit: Int
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n: Word
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buffer: array 10 of Char
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begin
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n := 10u;
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@ -243,16 +244,14 @@ end
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*)
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proc make_position() -> Position;
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var
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result: Position
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begin
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return Position(1u, 1u)
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end
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proc read_source(filename: pointer to Char, result: pointer to String) -> Bool;
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var
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input_file: pointer to FILE,
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source_size: Int,
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input_file: pointer to FILE
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source_size: Int
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input: pointer to Byte
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begin
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input_file := fopen(filename, "rb\0".ptr);
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@ -276,8 +275,7 @@ begin
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if fread(input, cast(source_size: Word), 1u, input_file) <> 1u then
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return false
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end;
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result^.length := cast(source_size: Word);
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result^.ptr := cast(input: pointer to Char);
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result^ := String(cast(input: pointer to Char), cast(source_size: Word));
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return true
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end
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@ -398,9 +396,8 @@ end
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proc lex_string(input: pointer to Char, current_token: pointer to Token) -> pointer to Char;
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var
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token_end: pointer to Char,
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constructed_string: pointer to Char,
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token_length: Word,
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token_end, constructed_string: pointer to Char
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token_length: Word
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is_valid: Bool
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begin
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token_end := input;
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@ -438,7 +435,7 @@ end
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proc print_tokens(tokens: pointer to Token, tokens_size: Word);
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var
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current_token: pointer to Token,
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current_token: pointer to Token
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i: Word
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begin
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i := 0u;
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@ -499,10 +496,10 @@ begin
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write_s("RETURN")
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elsif current_token^.kind = TOKEN_CAST then
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write_s("CAST")
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elsif current_token^.kind = TOKEN_AS then
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write_s("AS")
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elsif current_token^.kind = TOKEN_SIZEOF then
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write_s("SIZEOF")
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elsif current_token^.kind = TOKEN_SHIFT_LEFT then
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write_s("<<")
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elsif current_token^.kind = TOKEN_SHIFT_RIGHT then
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write_s(">>")
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elsif current_token^.kind = TOKEN_IDENTIFIER then
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write_c('<');
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write_s(current_token^.value.string);
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@ -641,10 +638,6 @@ begin
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current_token.kind := TOKEN_RETURN
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elsif "cast" = token_content then
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current_token.kind := TOKEN_CAST
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elsif "as" = token_content then
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current_token.kind := TOKEN_AS
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elsif "sizeof" = token_content then
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current_token.kind := TOKEN_SIZEOF
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elsif "defer" = token_content then
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current_token.kind := TOKEN_DEFER
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else
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@ -657,11 +650,10 @@ end
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proc tokenize(source_code: SourceCode, tokens_size: pointer to Word) -> pointer to Token;
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var
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token_end: pointer to Char,
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tokens: pointer to Token,
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current_token: pointer to Token,
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token_length: Word,
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first_char: Char,
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token_end: pointer to Char
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tokens, current_token: pointer to Token
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token_length: Word
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first_char: Char
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token_content: String
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begin
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tokens_size^ := 0u;
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@ -740,6 +732,9 @@ begin
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elsif source_code.text[1u] = '=' then
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current_token^.kind := TOKEN_GREATER_EQUAL;
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source_code := advance_source(source_code, 1u)
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elsif source_code.text[1u] = '>' then
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current_token^.kind := TOKEN_SHIFT_RIGHT;
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source_code := advance_source(source_code, 1u)
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else
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current_token^.kind := TOKEN_GREATER_THAN
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end
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@ -751,6 +746,9 @@ begin
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elsif source_code.text[1u] = '=' then
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current_token^.kind := TOKEN_LESS_EQUAL;
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source_code := advance_source(source_code, 1u)
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elsif source_code.text[1u] = '<' then
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current_token^.kind := TOKEN_SHIFT_LEFT;
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source_code := advance_source(source_code, 1u)
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elsif source_code.text[1u] = '>' then
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current_token^.kind := TOKEN_NOT_EQUAL;
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source_code := advance_source(source_code, 1u)
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@ -850,7 +848,7 @@ end
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proc parse_program(tokens: pointer to pointer to Token, tokens_size: pointer to Word) -> pointer to Program;
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var
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result: pointer to Program,
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result: pointer to Program
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current_constant: pointer to pointer to ConstantDefinition
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begin
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result := cast(calloc(1u, Program.size): pointer to Program);
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@ -883,8 +881,8 @@ end
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proc parse_command_line*(argc: Int, argv: pointer to pointer to Char) -> pointer to CommandLine;
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var
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parameter: pointer to pointer to Char,
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i: Int,
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parameter: pointer to pointer to Char
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i: Int
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result: pointer to CommandLine
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begin
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i := 1;
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@ -924,9 +922,9 @@ end
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proc process(argc: Int, argv: pointer to pointer to Char) -> Int;
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var
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tokens: pointer to Token,
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tokens_size: Word,
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source_code: SourceCode,
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tokens: pointer to Token
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tokens_size: Word
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source_code: SourceCode
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command_line: pointer to CommandLine
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begin
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command_line := parse_command_line(argc, argv);
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