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authorRyan Harrison <rharrison@chromium.org>2017-08-15 10:37:59 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-08-15 15:03:10 +0000
commit8a1758bf11c2d741e0cddc761b1dd2cdf564db93 (patch)
tree82cbafc46f574a05ae0c1d1d3d7f9ebde6cb932d /fpdfsdk/javascript/PublicMethods.cpp
parent171cb27a720036c48ae3a6176084e880742af0a9 (diff)
downloadpdfium-8a1758bf11c2d741e0cddc761b1dd2cdf564db93.tar.xz
Remove GetAt from string classes
This method duplicates the behaviour of the const [] operator and doesn't offer any additional safety. Folding them into one implementation. SetAt is retained, since implementing the non-const [] operator to replace SetAt has potential performance concerns. Specifically many non-obvious cases of reading an element using [] will cause a realloc & copy. BUG=pdfium:860 Change-Id: I3ef5e5e5a15376f040256b646eb0d90636e24b67 Reviewed-on: https://pdfium-review.googlesource.com/10870 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'fpdfsdk/javascript/PublicMethods.cpp')
-rw-r--r--fpdfsdk/javascript/PublicMethods.cpp38
1 files changed, 19 insertions, 19 deletions
diff --git a/fpdfsdk/javascript/PublicMethods.cpp b/fpdfsdk/javascript/PublicMethods.cpp
index bf35a67edc..2996316d79 100644
--- a/fpdfsdk/javascript/PublicMethods.cpp
+++ b/fpdfsdk/javascript/PublicMethods.cpp
@@ -235,7 +235,7 @@ int CJS_PublicMethods::ParseStringInteger(const CFX_WideString& str,
if (i - nStart > 10)
break;
- wchar_t c = str.GetAt(i);
+ wchar_t c = str[i];
if (!std::iswdigit(c))
break;
@@ -254,7 +254,7 @@ CFX_WideString CJS_PublicMethods::ParseStringString(const CFX_WideString& str,
CFX_WideString swRet;
nSkip = 0;
for (int i = nStart, sz = str.GetLength(); i < sz; i++) {
- wchar_t c = str.GetAt(i);
+ wchar_t c = str[i];
if (!std::iswdigit(c))
break;
@@ -286,7 +286,7 @@ double CJS_PublicMethods::ParseNormalDate(const CFX_WideString& value,
if (nIndex > 2)
break;
- wchar_t c = value.GetAt(i);
+ wchar_t c = value[i];
if (std::iswdigit(c)) {
number[nIndex++] = ParseStringInteger(value, i, nSkip, 4);
i += nSkip;
@@ -373,7 +373,7 @@ double CJS_PublicMethods::MakeRegularDate(const CFX_WideString& value,
if (bExit)
break;
- wchar_t c = format.GetAt(i);
+ wchar_t c = format[i];
switch (c) {
case ':':
case '.':
@@ -396,7 +396,7 @@ double CJS_PublicMethods::MakeRegularDate(const CFX_WideString& value,
int nSkip = 0;
int remaining = format.GetLength() - i - 1;
- if (remaining == 0 || format.GetAt(i + 1) != c) {
+ if (remaining == 0 || format[i + 1] != c) {
switch (c) {
case 'y':
i++;
@@ -433,12 +433,12 @@ double CJS_PublicMethods::MakeRegularDate(const CFX_WideString& value,
j += nSkip;
break;
case 't':
- bPm = (j < value.GetLength() && value.GetAt(j) == 'p');
+ bPm = (j < value.GetLength() && value[j] == 'p');
i++;
j++;
break;
}
- } else if (remaining == 1 || format.GetAt(i + 2) != c) {
+ } else if (remaining == 1 || format[i + 2] != c) {
switch (c) {
case 'y':
nYear = ParseStringInteger(value, j, nSkip, 4);
@@ -476,13 +476,13 @@ double CJS_PublicMethods::MakeRegularDate(const CFX_WideString& value,
j += nSkip;
break;
case 't':
- bPm = (j + 1 < value.GetLength() && value.GetAt(j) == 'p' &&
- value.GetAt(j + 1) == 'm');
+ bPm = (j + 1 < value.GetLength() && value[j] == 'p' &&
+ value[j + 1] == 'm');
i += 2;
j += 2;
break;
}
- } else if (remaining == 2 || format.GetAt(i + 3) != c) {
+ } else if (remaining == 2 || format[i + 3] != c) {
switch (c) {
case 'm': {
CFX_WideString sMonth = ParseStringString(value, j, nSkip);
@@ -510,7 +510,7 @@ double CJS_PublicMethods::MakeRegularDate(const CFX_WideString& value,
j += 3;
break;
}
- } else if (remaining == 3 || format.GetAt(i + 4) != c) {
+ } else if (remaining == 3 || format[i + 4] != c) {
switch (c) {
case 'y':
nYear = ParseStringInteger(value, j, nSkip, 4);
@@ -548,7 +548,7 @@ double CJS_PublicMethods::MakeRegularDate(const CFX_WideString& value,
break;
}
} else {
- if (j >= value.GetLength() || format.GetAt(i) != value.GetAt(j)) {
+ if (j >= value.GetLength() || format[i] != value[j]) {
bBadFormat = true;
bExit = true;
}
@@ -566,7 +566,7 @@ double CJS_PublicMethods::MakeRegularDate(const CFX_WideString& value,
default:
if (value.GetLength() <= j) {
bExit = true;
- } else if (format.GetAt(i) != value.GetAt(j)) {
+ } else if (format[i] != value[j]) {
bBadFormat = true;
bExit = true;
}
@@ -630,7 +630,7 @@ CFX_WideString CJS_PublicMethods::MakeFormatDate(double dDate,
int i = 0;
while (i < format.GetLength()) {
- wchar_t c = format.GetAt(i);
+ wchar_t c = format[i];
int remaining = format.GetLength() - i - 1;
sPart = L"";
switch (c) {
@@ -642,7 +642,7 @@ CFX_WideString CJS_PublicMethods::MakeFormatDate(double dDate,
case 'M':
case 's':
case 't':
- if (remaining == 0 || format.GetAt(i + 1) != c) {
+ if (remaining == 0 || format[i + 1] != c) {
switch (c) {
case 'y':
sPart += c;
@@ -670,7 +670,7 @@ CFX_WideString CJS_PublicMethods::MakeFormatDate(double dDate,
break;
}
i++;
- } else if (remaining == 1 || format.GetAt(i + 2) != c) {
+ } else if (remaining == 1 || format[i + 2] != c) {
switch (c) {
case 'y':
sPart.Format(L"%02d", nYear - (nYear / 100) * 100);
@@ -698,7 +698,7 @@ CFX_WideString CJS_PublicMethods::MakeFormatDate(double dDate,
break;
}
i += 2;
- } else if (remaining == 2 || format.GetAt(i + 3) != c) {
+ } else if (remaining == 2 || format[i + 3] != c) {
switch (c) {
case 'm':
i += 3;
@@ -712,7 +712,7 @@ CFX_WideString CJS_PublicMethods::MakeFormatDate(double dDate,
sPart += c;
break;
}
- } else if (remaining == 3 || format.GetAt(i + 4) != c) {
+ } else if (remaining == 3 || format[i + 4] != c) {
switch (c) {
case 'y':
sPart.Format(L"%04d", nYear);
@@ -1762,7 +1762,7 @@ bool CJS_PublicMethods::AFExtractNums(CJS_Runtime* pRuntime,
}
CFX_WideString str = params[0].ToCFXWideString(pRuntime);
- if (str.GetAt(0) == L'.' || str.GetAt(0) == L',')
+ if (str[0] == L'.' || str[0] == L',')
str = L"0" + str;
CFX_WideString sPart;