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Trevor Norris
b55e58042c
Can now call fill() using following parameters if value is a String:
fill(string[, start[, end]][, encoding])
And with the following if value is a Buffer:
fill(buffer[, start[, end]])
The encoding is ignored if value is not a String. All other non-Buffer
values are coerced to a uint32.
A multibyte strings will simply be copied into the Buffer until the
number of bytes run out. Meaning partial strings can be left behind:
Buffer(3).fill('\u0222');
// returns: <Buffer c8 a2 c8>
In some encoding cases, such as 'hex', fill() will throw if the input
string is not valid.
PR-URL: https://github.com/nodejs/node/pull/4935
Reviewed-By: James M Snell <jasnell@gmail.com>
52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
#include "util.h"
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#include "string_bytes.h"
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namespace node {
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Utf8Value::Utf8Value(v8::Isolate* isolate, v8::Local<v8::Value> value)
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: length_(0), str_(str_st_) {
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if (value.IsEmpty())
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return;
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v8::Local<v8::String> string = value->ToString(isolate);
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if (string.IsEmpty())
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return;
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// Allocate enough space to include the null terminator
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size_t len = StringBytes::StorageSize(isolate, string, UTF8) + 1;
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if (len > sizeof(str_st_)) {
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str_ = static_cast<char*>(malloc(len));
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CHECK_NE(str_, nullptr);
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}
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const int flags =
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v8::String::NO_NULL_TERMINATION | v8::String::REPLACE_INVALID_UTF8;
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length_ = string->WriteUtf8(str_, len, 0, flags);
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str_[length_] = '\0';
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}
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TwoByteValue::TwoByteValue(v8::Isolate* isolate, v8::Local<v8::Value> value)
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: length_(0), str_(str_st_) {
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if (value.IsEmpty())
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return;
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v8::Local<v8::String> string = value->ToString(isolate);
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if (string.IsEmpty())
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return;
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// Allocate enough space to include the null terminator
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size_t len = StringBytes::StorageSize(isolate, string, UCS2) + 1;
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if (len > sizeof(str_st_)) {
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str_ = static_cast<uint16_t*>(malloc(len));
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CHECK_NE(str_, nullptr);
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}
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const int flags =
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v8::String::NO_NULL_TERMINATION | v8::String::REPLACE_INVALID_UTF8;
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length_ = string->Write(str_, 0, len, flags);
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str_[length_] = '\0';
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}
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} // namespace node
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