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fix: fallthrough warning
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@amaanq
amaanq committed Nov 18, 2023
1 parent 7de7903 commit 492fd0f
Showing 1 changed file with 60 additions and 81 deletions.
141 changes: 60 additions & 81 deletions src/scanner.c
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Original file line number Diff line number Diff line change
Expand Up @@ -8,64 +8,63 @@

#define MAX(a, b) ((a) > (b) ? (a) : (b))

#define VEC_RESIZE(vec, _cap) \
void *tmp = realloc((vec).data, (_cap) * sizeof((vec).data[0])); \
assert(tmp != NULL); \
(vec).data = tmp; \
assert((vec).data != NULL); \
#define VEC_RESIZE(vec, _cap) \
void *tmp = realloc((vec).data, (_cap) * sizeof((vec).data[0])); \
assert(tmp != NULL); \
(vec).data = tmp; \
assert((vec).data != NULL); \
(vec).cap = (_cap);

#define VEC_PUSH(vec, el) \
if ((vec).cap == (vec).len) { \
VEC_RESIZE((vec), MAX(16, (vec).len * 2)); \
} \
#define VEC_PUSH(vec, el) \
if ((vec).cap == (vec).len) { \
VEC_RESIZE((vec), MAX(16, (vec).len * 2)); \
} \
(vec).data[(vec).len++] = (el);

#define VEC_POP(vec) \
{ \
STRING_FREE(VEC_BACK((vec)).word); \
(vec).len--; \
#define VEC_POP(vec) \
{ \
STRING_FREE(VEC_BACK((vec)).word); \
(vec).len--; \
}

#define VEC_BACK(vec) ((vec).data[(vec).len - 1])

#define VEC_FREE(vec) \
{ \
if ((vec).data != NULL) \
free((vec).data); \
#define VEC_FREE(vec) \
{ \
if ((vec).data != NULL) \
free((vec).data); \
}

#define VEC_CLEAR(vec) \
{ \
for (uint32_t i = 0; i < (vec).len; i++) { \
STRING_FREE((vec).data[i].word); \
} \
(vec).len = 0; \
#define VEC_CLEAR(vec) \
{ \
for (uint32_t i = 0; i < (vec).len; i++) { \
STRING_FREE((vec).data[i].word); \
} \
(vec).len = 0; \
}

#define STRING_RESIZE(vec, _cap) \
void *tmp = realloc((vec).data, (_cap + 1) * sizeof((vec).data[0])); \
assert(tmp != NULL); \
(vec).data = tmp; \
memset((vec).data + (vec).len, 0, \
((_cap + 1) - (vec).len) * sizeof((vec).data[0])); \
#define STRING_RESIZE(vec, _cap) \
void *tmp = realloc((vec).data, (_cap + 1) * sizeof((vec).data[0])); \
assert(tmp != NULL); \
(vec).data = tmp; \
memset((vec).data + (vec).len, 0, ((_cap + 1) - (vec).len) * sizeof((vec).data[0])); \
(vec).cap = (_cap);

#define STRING_GROW(vec, _cap) \
if ((vec).cap < (_cap)) { \
STRING_RESIZE((vec), (_cap)); \
#define STRING_GROW(vec, _cap) \
if ((vec).cap < (_cap)) { \
STRING_RESIZE((vec), (_cap)); \
}

#define STRING_PUSH(vec, el) \
if ((vec).cap == (vec).len) { \
STRING_RESIZE((vec), MAX(16, (vec).len * 2)); \
} \
#define STRING_PUSH(vec, el) \
if ((vec).cap == (vec).len) { \
STRING_RESIZE((vec), MAX(16, (vec).len * 2)); \
} \
(vec).data[(vec).len++] = (el);

#define STRING_FREE(vec) \
{ \
if ((vec).data != NULL) \
free((vec).data); \
#define STRING_FREE(vec) \
{ \
if ((vec).data != NULL) \
free((vec).data); \
}

enum TokenType {
Expand All @@ -89,9 +88,7 @@ typedef struct {
char *data;
} String;

static String string_new() {
return (String){.cap = 16, .len = 0, .data = calloc(1, sizeof(char) * 17)};
}
static String string_new() { return (String){.cap = 16, .len = 0, .data = calloc(1, sizeof(char) * 17)}; }

typedef struct {
String word;
Expand Down Expand Up @@ -128,8 +125,7 @@ static unsigned serialize(Scanner *scanner, char *buffer) {
buffer[size++] = (char)scanner->open_heredocs.len;
for (unsigned j = 0; j < scanner->open_heredocs.len; j++) {
Heredoc *heredoc = &scanner->open_heredocs.data[j];
if (size + 2 + heredoc->word.len >=
TREE_SITTER_SERIALIZATION_BUFFER_SIZE) {
if (size + 2 + heredoc->word.len >= TREE_SITTER_SERIALIZATION_BUFFER_SIZE) {
return 0;
}
buffer[size++] = (char)heredoc->end_word_indentation_allowed;
Expand Down Expand Up @@ -187,18 +183,15 @@ static inline bool scan_whitespace(TSLexer *lexer) {
}
}

static inline bool is_valid_name_char(TSLexer *lexer) {
return iswalpha(lexer->lookahead) || lexer->lookahead == '_';
}
static inline bool is_valid_name_char(TSLexer *lexer) { return iswalpha(lexer->lookahead) || lexer->lookahead == '_'; }

static inline bool is_escapable_sequence(TSLexer *lexer) {
// Note: remember to also update the escape_sequence rule in the
// main grammar whenever changing this method
int32_t letter = lexer->lookahead;

if (letter == 'n' || letter == 'r' || letter == 't' || letter == 'v' ||
letter == 'e' || letter == 'f' || letter == '\\' || letter == '$' ||
letter == '"') {
if (letter == 'n' || letter == 'r' || letter == 't' || letter == 'v' || letter == 'e' || letter == 'f' ||
letter == '\\' || letter == '$' || letter == '"') {
return true;
}

Expand All @@ -217,8 +210,7 @@ static inline bool is_escapable_sequence(TSLexer *lexer) {
}

// Octal
return iswdigit(lexer->lookahead) && lexer->lookahead >= '0' &&
lexer->lookahead <= '7';
return iswdigit(lexer->lookahead) && lexer->lookahead >= '0' && lexer->lookahead <= '7';
}

static inline bool scan_nowdoc_string(Scanner *scanner, TSLexer *lexer) {
Expand All @@ -245,24 +237,20 @@ static inline bool scan_nowdoc_string(Scanner *scanner, TSLexer *lexer) {
advance(lexer);
has_consumed_content = true;

end_tag_matched =
(i == heredoc_tag.len - 1 &&
(iswspace(lexer->lookahead) || lexer->lookahead == ';' ||
lexer->lookahead == ',' || lexer->lookahead == ')'));
end_tag_matched = (i == heredoc_tag.len - 1 && (iswspace(lexer->lookahead) || lexer->lookahead == ';' ||
lexer->lookahead == ',' || lexer->lookahead == ')'));
}

if (end_tag_matched) {
// There may be an arbitrary amount of white space after the end tag
while (iswspace(lexer->lookahead) && lexer->lookahead != '\r' &&
lexer->lookahead != '\n') {
while (iswspace(lexer->lookahead) && lexer->lookahead != '\r' && lexer->lookahead != '\n') {
advance(lexer);
has_consumed_content = true;
}

// Return to allow the end tag parsing if we've encountered an end tag
// at a valid position
if (lexer->lookahead == ';' || lexer->lookahead == ',' ||
lexer->lookahead == ')' || lexer->lookahead == '\n' ||
if (lexer->lookahead == ';' || lexer->lookahead == ',' || lexer->lookahead == ')' || lexer->lookahead == '\n' ||
lexer->lookahead == '\r') {
// , and ) is needed to support heredoc in function arguments
return false;
Expand All @@ -287,17 +275,15 @@ static inline bool scan_nowdoc_string(Scanner *scanner, TSLexer *lexer) {
return false;
}

static bool scan_encapsed_part_string(Scanner *scanner, TSLexer *lexer,
bool is_after_variable, bool is_heredoc,
static bool scan_encapsed_part_string(Scanner *scanner, TSLexer *lexer, bool is_after_variable, bool is_heredoc,
bool is_execution_string) {
bool has_consumed_content = false;

if (is_heredoc && scanner->open_heredocs.len > 0) {
// While PHP requires the heredoc end tag to be the very first on a new
// line, there may be an arbitrary amount of whitespace before the
// closing token However, we should not consume \r or \n
while (iswspace(lexer->lookahead) && lexer->lookahead != '\r' &&
lexer->lookahead != '\n') {
while (iswspace(lexer->lookahead) && lexer->lookahead != '\r' && lexer->lookahead != '\n') {
advance(lexer);
has_consumed_content = true;
}
Expand All @@ -313,26 +299,22 @@ static bool scan_encapsed_part_string(Scanner *scanner, TSLexer *lexer,
has_consumed_content = true;
advance(lexer);

end_tag_matched =
(i == heredoc_tag.len - 1 &&
(iswspace(lexer->lookahead) || lexer->lookahead == ';' ||
lexer->lookahead == ',' || lexer->lookahead == ')'));
end_tag_matched = (i == heredoc_tag.len - 1 && (iswspace(lexer->lookahead) || lexer->lookahead == ';' ||
lexer->lookahead == ',' || lexer->lookahead == ')'));
}

if (end_tag_matched) {
// There may be an arbitrary amount of white space after the end tag
// However, we should not consume \r or \n
while (iswspace(lexer->lookahead) && lexer->lookahead != '\r' &&
lexer->lookahead != '\n') {
while (iswspace(lexer->lookahead) && lexer->lookahead != '\r' && lexer->lookahead != '\n') {
advance(lexer);
has_consumed_content = true;
}

// Return to allow the end tag parsing if we've encountered an end
// tag at a valid position
if (lexer->lookahead == ';' || lexer->lookahead == ',' ||
lexer->lookahead == ')' || lexer->lookahead == '\n' ||
lexer->lookahead == '\r') {
if (lexer->lookahead == ';' || lexer->lookahead == ',' || lexer->lookahead == ')' ||
lexer->lookahead == '\n' || lexer->lookahead == '\r') {
// , and ) is needed to support heredoc in function arguments
return false;
}
Expand Down Expand Up @@ -404,6 +386,7 @@ static bool scan_encapsed_part_string(Scanner *scanner, TSLexer *lexer,
}
break;
}
break;
case '[':
if (is_after_variable) {
return has_content;
Expand Down Expand Up @@ -578,21 +561,17 @@ void *tree_sitter_php_external_scanner_create() {
return scanner;
}

unsigned tree_sitter_php_external_scanner_serialize(void *payload,
char *buffer) {
unsigned tree_sitter_php_external_scanner_serialize(void *payload, char *buffer) {
Scanner *scanner = (Scanner *)payload;
return serialize(scanner, buffer);
}

void tree_sitter_php_external_scanner_deserialize(void *payload,
const char *buffer,
unsigned length) {
void tree_sitter_php_external_scanner_deserialize(void *payload, const char *buffer, unsigned length) {
Scanner *scanner = (Scanner *)payload;
deserialize(scanner, buffer, length);
}

bool tree_sitter_php_external_scanner_scan(void *payload, TSLexer *lexer,
const bool *valid_symbols) {
bool tree_sitter_php_external_scanner_scan(void *payload, TSLexer *lexer, const bool *valid_symbols) {
Scanner *scanner = (Scanner *)payload;
return scan(scanner, lexer, valid_symbols);
}
Expand Down

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