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glcpp: Set locations on tokens.

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This commit is contained in:
Kenneth Graunke
2010-06-16 16:58:31 -07:00
parent db938103c7
commit b78c9ddfbf
2 changed files with 25 additions and 9 deletions
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33
glcpp/glcpp-parse.y
View File

@@ -391,18 +391,23 @@ pp_tokens:
preprocessing_token: preprocessing_token:
IDENTIFIER { IDENTIFIER {
$$ = _token_create_str (parser, IDENTIFIER, $1); $$ = _token_create_str (parser, IDENTIFIER, $1);
$$->location = yylloc;
} }
| INTEGER_STRING { | INTEGER_STRING {
$$ = _token_create_str (parser, INTEGER_STRING, $1); $$ = _token_create_str (parser, INTEGER_STRING, $1);
$$->location = yylloc;
} }
| operator { | operator {
$$ = _token_create_ival (parser, $1, $1); $$ = _token_create_ival (parser, $1, $1);
$$->location = yylloc;
} }
| OTHER { | OTHER {
$$ = _token_create_str (parser, OTHER, $1); $$ = _token_create_str (parser, OTHER, $1);
$$->location = yylloc;
} }
| SPACE { | SPACE {
$$ = _token_create_ival (parser, SPACE, SPACE); $$ = _token_create_ival (parser, SPACE, SPACE);
$$->location = yylloc;
} }
; ;
@@ -781,6 +786,8 @@ _token_print (char **out, token_t *token)
static token_t * static token_t *
_token_paste (glcpp_parser_t *parser, token_t *token, token_t *other) _token_paste (glcpp_parser_t *parser, token_t *token, token_t *other)
{ {
token_t *combined = NULL;
/* Pasting a placeholder onto anything makes no change. */ /* Pasting a placeholder onto anything makes no change. */
if (other->type == PLACEHOLDER) if (other->type == PLACEHOLDER)
return token; return token;
@@ -794,34 +801,40 @@ _token_paste (glcpp_parser_t *parser, token_t *token, token_t *other)
switch (token->type) { switch (token->type) {
case '<': case '<':
if (other->type == '<') if (other->type == '<')
return _token_create_ival (token, LEFT_SHIFT, LEFT_SHIFT); combined = _token_create_ival (token, LEFT_SHIFT, LEFT_SHIFT);
else if (other->type == '=') else if (other->type == '=')
return _token_create_ival (token, LESS_OR_EQUAL, LESS_OR_EQUAL); combined = _token_create_ival (token, LESS_OR_EQUAL, LESS_OR_EQUAL);
break; break;
case '>': case '>':
if (other->type == '>') if (other->type == '>')
return _token_create_ival (token, RIGHT_SHIFT, RIGHT_SHIFT); combined = _token_create_ival (token, RIGHT_SHIFT, RIGHT_SHIFT);
else if (other->type == '=') else if (other->type == '=')
return _token_create_ival (token, GREATER_OR_EQUAL, GREATER_OR_EQUAL); combined = _token_create_ival (token, GREATER_OR_EQUAL, GREATER_OR_EQUAL);
break; break;
case '=': case '=':
if (other->type == '=') if (other->type == '=')
return _token_create_ival (token, EQUAL, EQUAL); combined = _token_create_ival (token, EQUAL, EQUAL);
break; break;
case '!': case '!':
if (other->type == '=') if (other->type == '=')
return _token_create_ival (token, NOT_EQUAL, NOT_EQUAL); combined = _token_create_ival (token, NOT_EQUAL, NOT_EQUAL);
break; break;
case '&': case '&':
if (other->type == '&') if (other->type == '&')
return _token_create_ival (token, AND, AND); combined = _token_create_ival (token, AND, AND);
break; break;
case '|': case '|':
if (other->type == '|') if (other->type == '|')
return _token_create_ival (token, OR, OR); combined = _token_create_ival (token, OR, OR);
break; break;
} }
if (combined != NULL) {
/* Inherit the location from the first token */
combined->location = token->location;
return combined;
}
/* Two string-valued tokens can usually just be mashed /* Two string-valued tokens can usually just be mashed
* together. * together.
* *
@@ -837,7 +850,9 @@ _token_paste (glcpp_parser_t *parser, token_t *token, token_t *other)
str = xtalloc_asprintf (token, "%s%s", str = xtalloc_asprintf (token, "%s%s",
token->value.str, other->value.str); token->value.str, other->value.str);
return _token_create_str (token, token->type, str); combined = _token_create_str (token, token->type, str);
combined->location = token->location;
return combined;
} }
glcpp_print (parser->errors, "Error: Pasting \""); glcpp_print (parser->errors, "Error: Pasting \"");

1
glcpp/glcpp.h
View File

@@ -72,6 +72,7 @@ typedef struct YYLTYPE {
struct token { struct token {
int type; int type;
YYSTYPE value; YYSTYPE value;
YYLTYPE location;
}; };
typedef struct token_node { typedef struct token_node {