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n-api: throw RangeError napi_create_typedarray() #216

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n-api: throw RangeError napi_create_typedarray() #216

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51 changes: 42 additions & 9 deletions src/node_api.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -144,6 +144,30 @@ struct napi_env__ {
(!try_catch.HasCaught() ? napi_ok \
: napi_set_last_error((env), napi_pending_exception))

#define THROW_RANGE_ERROR_IF_FALSE(env, condition, error, message) \
do { \
if (!(condition)) { \
napi_throw_range_error((env), (error), (message)); \
return napi_set_last_error((env), napi_generic_failure); \
} \
} while (0)

#define CREATE_TYPED_ARRAY( \
env, type, size_of_element, buffer, byte_offset, length, out) \
do { \
if ((size_of_element) > 1) { \
THROW_RANGE_ERROR_IF_FALSE( \
(env), (byte_offset) % (size_of_element) == 0, \
"ERR_NAPI_INVALID_TYPEDARRAY_ALIGNMENT", \
"start offset of "#type" should be a multiple of "#size_of_element); \
} \
THROW_RANGE_ERROR_IF_FALSE((env), (length) * (size_of_element) + \
(byte_offset) <= buffer->ByteLength(), \
"ERR_NAPI_INVALID_TYPEDARRAY_LENGTH", \
"Invalid typed array length"); \
(out) = v8::type::New((buffer), (byte_offset), (length)); \
} while (0)

namespace {
namespace v8impl {

Expand Down Expand Up @@ -3150,31 +3174,40 @@ napi_status napi_create_typedarray(napi_env env,

switch (type) {
case napi_int8_array:
typedArray = v8::Int8Array::New(buffer, byte_offset, length);
CREATE_TYPED_ARRAY(
env, Int8Array, 1, buffer, byte_offset, length, typedArray);
break;
case napi_uint8_array:
typedArray = v8::Uint8Array::New(buffer, byte_offset, length);
CREATE_TYPED_ARRAY(
env, Uint8Array, 1, buffer, byte_offset, length, typedArray);
break;
case napi_uint8_clamped_array:
typedArray = v8::Uint8ClampedArray::New(buffer, byte_offset, length);
CREATE_TYPED_ARRAY(
env, Uint8ClampedArray, 1, buffer, byte_offset, length, typedArray);
break;
case napi_int16_array:
typedArray = v8::Int16Array::New(buffer, byte_offset, length);
CREATE_TYPED_ARRAY(
env, Int16Array, 2, buffer, byte_offset, length, typedArray);
break;
case napi_uint16_array:
typedArray = v8::Uint16Array::New(buffer, byte_offset, length);
CREATE_TYPED_ARRAY(
env, Uint16Array, 2, buffer, byte_offset, length, typedArray);
break;
case napi_int32_array:
typedArray = v8::Int32Array::New(buffer, byte_offset, length);
CREATE_TYPED_ARRAY(
env, Int32Array, 4, buffer, byte_offset, length, typedArray);
break;
case napi_uint32_array:
typedArray = v8::Uint32Array::New(buffer, byte_offset, length);
CREATE_TYPED_ARRAY(
env, Uint32Array, 4, buffer, byte_offset, length, typedArray);
break;
case napi_float32_array:
typedArray = v8::Float32Array::New(buffer, byte_offset, length);
CREATE_TYPED_ARRAY(
env, Float32Array, 4, buffer, byte_offset, length, typedArray);
break;
case napi_float64_array:
typedArray = v8::Float64Array::New(buffer, byte_offset, length);
CREATE_TYPED_ARRAY(
env, Float64Array, 8, buffer, byte_offset, length, typedArray);
break;
default:
return napi_set_last_error(env, napi_invalid_arg);
Expand Down