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Rework error to use a global slot to store the error value.

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This change frees up the error bit in ecma_value_t, which allows
to define 4 more value types (e.g. symbols). To keep API
compatibility we introduce a box for values with error flag.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2017-10-18 03:44:48 -07:00
committed by yichoi
parent 742654a3f1
commit 53cd324179
19 changed files with 582 additions and 288 deletions
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jerry-core/vm/opcodes-ecma-bitwise.c
+2 -2
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@@ -44,8 +44,8 @@ do_number_bitwise_logic (number_bitwise_logic_op op, /**< number bitwise logic o
{
JERRY_STATIC_ASSERT (ECMA_DIRECT_TYPE_INTEGER_VALUE == 0,
ecma_direct_type_integer_value_must_be_zero_for_bitwise_logic);
JERRY_STATIC_ASSERT ((ECMA_DIRECT_TYPE_MASK | ECMA_VALUE_ERROR_FLAG) == ((1 << ECMA_DIRECT_SHIFT) - 1),
direct_type_mask_and_error_flag_must_fill_all_bits_before_the_value_starts);
JERRY_STATIC_ASSERT (ECMA_DIRECT_TYPE_MASK == ((1 << ECMA_DIRECT_SHIFT) - 1),
direct_type_mask_must_fill_all_bits_before_the_value_starts);
JERRY_ASSERT (!ECMA_IS_VALUE_ERROR (left_value)
&& !ECMA_IS_VALUE_ERROR (right_value));