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f2e8463092
2. implement ObjectPropertyName type Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
59 lines
3.7 KiB
C++
59 lines
3.7 KiB
C++
#include "Escargot.h"
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#include "GlobalObject.h"
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#include "Context.h"
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#include "StringObject.h"
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namespace Escargot {
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static Value builtinMathMax(ExecutionState& state, Value thisValue, size_t argc, Value* argv, bool isNewExpression)
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{
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if (argc == 0) {
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double n_inf = -1 * std::numeric_limits<double>::infinity();
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return Value(n_inf);
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} else {
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double maxValue = argv[0].toNumber(state);
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for (unsigned i = 1; i < argc; i++) {
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double value = argv[i].toNumber(state);
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double qnan = std::numeric_limits<double>::quiet_NaN();
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if (std::isnan(value))
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return Value(qnan);
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if (value > maxValue || (!value && !maxValue && !std::signbit(value)))
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maxValue = value;
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}
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return Value(maxValue);
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}
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return Value();
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}
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void GlobalObject::installMath(ExecutionState& state)
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{
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m_math = new Object(state);
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m_math->markThisObjectDontNeedStructureTransitionTable(state);
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// initialize math object: $20.2.1.6 Math.PI
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const StaticStrings* strings = &state.context()->staticStrings();
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m_math->defineOwnPropertyThrowsException(state, strings->PI, ObjectPropertyDescriptorForDefineOwnProperty(Value(3.1415926535897932), ObjectPropertyDescriptor::NotPresent));
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// TODO(add reference)
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m_math->defineOwnPropertyThrowsException(state, strings->E, ObjectPropertyDescriptorForDefineOwnProperty(Value(2.718281828459045), ObjectPropertyDescriptor::NotPresent));
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// http://www.ecma-international.org/ecma-262/5.1/#sec-15.8.1.3
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m_math->defineOwnPropertyThrowsException(state, strings->LN2, ObjectPropertyDescriptorForDefineOwnProperty(Value(0.6931471805599453), ObjectPropertyDescriptor::NotPresent));
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// http://www.ecma-international.org/ecma-262/5.1/#sec-15.8.1.2
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m_math->defineOwnPropertyThrowsException(state, strings->LN10, ObjectPropertyDescriptorForDefineOwnProperty(Value(2.302585092994046), ObjectPropertyDescriptor::NotPresent));
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// http://www.ecma-international.org/ecma-262/5.1/#sec-15.8.1.4
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m_math->defineOwnPropertyThrowsException(state, strings->LOG2E, ObjectPropertyDescriptorForDefineOwnProperty(Value(1.4426950408889634), ObjectPropertyDescriptor::NotPresent));
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// http://www.ecma-international.org/ecma-262/5.1/#sec-15.8.1.5
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m_math->defineOwnPropertyThrowsException(state, strings->LOG10E, ObjectPropertyDescriptorForDefineOwnProperty(Value(0.4342944819032518), ObjectPropertyDescriptor::NotPresent));
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// http://www.ecma-international.org/ecma-262/5.1/#sec-15.8.1.7
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m_math->defineOwnPropertyThrowsException(state, strings->SQRT1_2, ObjectPropertyDescriptorForDefineOwnProperty(Value(0.7071067811865476), ObjectPropertyDescriptor::NotPresent));
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// http://www.ecma-international.org/ecma-262/5.1/#sec-15.8.1.8
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m_math->defineOwnPropertyThrowsException(state, strings->SQRT2, ObjectPropertyDescriptorForDefineOwnProperty(Value(1.4142135623730951), ObjectPropertyDescriptor::NotPresent));
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// initialize math object: $20.2.2.24 Math.max()
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m_math->defineOwnPropertyThrowsException(state, ObjectPropertyName(state.context()->staticStrings().max),
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Object::ObjectPropertyDescriptorForDefineOwnProperty(new FunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().max, builtinMathMax, 2, nullptr, NativeFunctionInfo::Strict)), (ObjectPropertyDescriptor::PresentAttribute)(ObjectPropertyDescriptor::WritablePresent | ObjectPropertyDescriptor::EnumerablePresent)));
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defineOwnProperty(state, ObjectPropertyName(state.context()->staticStrings().Math),
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Object::ObjectPropertyDescriptorForDefineOwnProperty(m_math, (ObjectPropertyDescriptor::PresentAttribute)(ObjectPropertyDescriptor::WritablePresent | ObjectPropertyDescriptor::EnumerablePresent)));
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}
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}
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