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Use colon instead of as to cast

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This commit is contained in:
Eugen Wissner
2025-02-14 08:05:03 +01:00
parent c564847c6b
commit ec0b4be1f7
10 changed files with 290 additions and 116 deletions
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2
boot/ast.cc
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@ -1014,6 +1014,8 @@ namespace boot
return "and";
case binary_operator::disjunction:
return "or";
case binary_operator::exclusive_disjunction:
return "xor";
}
__builtin_unreachable();
};

6
boot/lexer.ll
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@ -122,6 +122,9 @@ nil {
and {
return yy::parser::make_AND(this->location);
}
xor {
return yy::parser::make_XOR(this->location);
}
or {
return yy::parser::make_OR(this->location);
}
@ -134,9 +137,6 @@ return {
cast {
return yy::parser::make_CAST(this->location);
}
as {
return yy::parser::make_AS(this->location);
}
sizeof {
return yy::parser::make_SIZEOF(this->location);
}

15
boot/parser.yy
View File

@ -85,12 +85,12 @@ along with GCC; see the file COPYING3. If not see
%token CONST VAR PROCEDURE ARRAY OF TYPE RECORD POINTER TO UNION
%token BEGIN_BLOCK END_BLOCK EXTERN DEFER
%token LEFT_PAREN RIGHT_PAREN LEFT_SQUARE RIGHT_SQUARE SEMICOLON DOT COMMA
%token AND OR NOT CAST AS SIZEOF
%token AND OR NOT CAST SIZEOF
%token GREATER_EQUAL LESS_EQUAL LESS_THAN GREATER_THAN NOT_EQUAL EQUALS
%token PLUS MINUS MULTIPLICATION DIVISION REMAINDER
%token ASSIGNMENT COLON HAT AT NIL ARROW
%left OR AND
%left OR AND XOR
%left EQUALS NOT_EQUAL LESS_THAN GREATER_THAN LESS_EQUAL GREATER_EQUAL
%left PLUS MINUS
%left MULTIPLICATION DIVISION REMAINDER
@ -189,7 +189,7 @@ call_expression: IDENTIFIER actual_parameter_list
$$ = new elna::boot::call_expression(elna::boot::make_position(@1), $1);
std::swap($$->arguments(), $2);
}
cast_expression: CAST LEFT_PAREN expression AS type_expression RIGHT_PAREN
cast_expression: CAST LEFT_PAREN expression COLON type_expression RIGHT_PAREN
{
$$ = new elna::boot::cast_expression(elna::boot::make_position(@1), $5, $3);
}
@ -339,6 +339,11 @@ expression:
$$ = new elna::boot::binary_expression(elna::boot::make_position(@2), $1, $3,
elna::boot::binary_operator::disjunction);
}
| expression XOR expression
{
$$ = new elna::boot::binary_expression(elna::boot::make_position(@2), $1, $3,
elna::boot::binary_operator::exclusive_disjunction);
}
unary:
AT operand
{
@ -403,9 +408,9 @@ optional_statements:
field_declaration:
IDENTIFIER COLON type_expression { $$ = std::make_pair($1, $3); }
field_list:
field_declaration SEMICOLON field_list
field_declaration field_list
{
std::swap($$, $3);
std::swap($$, $2);
$$.emplace($$.cbegin(), $1);
}
| field_declaration { $$.emplace_back($1); }