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Implement nullish coalescing operator (#3997)

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JerryScript-DCO-1.0-Signed-off-by: bence gabor kis kisbg@inf.u-szeged.hu
This commit is contained in:
kisbg
2020-07-17 15:42:51 +02:00
committed by GitHub
parent f60e16d9d5
commit dfd9d4497a
13 changed files with 323 additions and 72 deletions
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jerry-core/parser/js/byte-code.h
+4 -2
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@@ -576,6 +576,10 @@
VM_OC_INITIALIZER_PUSH_PROP | VM_OC_GET_STACK) \
CBC_FORWARD_BRANCH (CBC_EXT_DEFAULT_INITIALIZER, -1, \
VM_OC_DEFAULT_INITIALIZER) \
CBC_OPCODE (CBC_EXT_ERROR, CBC_NO_FLAG, 0, \
VM_OC_ERROR) \
CBC_FORWARD_BRANCH (CBC_EXT_BRANCH_IF_NULLISH, -1, \
VM_OC_BRANCH_IF_NULLISH) \
\
/* Basic opcodes. */ \
CBC_OPCODE (CBC_EXT_PUSH_LITERAL_PUSH_NUMBER_0, CBC_HAS_LITERAL_ARG, 2, \
@@ -600,8 +604,6 @@
VM_OC_GET_TEMPLATE_OBJECT | VM_OC_PUT_STACK) \
CBC_OPCODE (CBC_EXT_LINE, CBC_NO_FLAG, 0, \
VM_OC_LINE) \
CBC_OPCODE (CBC_EXT_ERROR, CBC_NO_FLAG, 0, \
VM_OC_ERROR) \
CBC_OPCODE (CBC_EXT_THROW_REFERENCE_ERROR, CBC_NO_FLAG, 1, \
VM_OC_THROW_REFERENCE_ERROR) \
CBC_OPCODE (CBC_EXT_THROW_ASSIGN_CONST_ERROR, CBC_NO_FLAG, 0, \