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Create function variables using the data produced by the pre-scanner. (#3199)

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The pre-scanner now is able to track all variable declarations and produces a compressed
stream which store this data for each function and catch block. When a function or
catch block is parsed, this information is decoded and the appropriate variables are
created. Furthermore a stack scope is created which contains the currently available
local variables and their register or literal index.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2019-10-17 15:20:04 +02:00
committed by GitHub
parent fd1f7eab9f
commit 7df87b7778
20 changed files with 2098 additions and 1219 deletions
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jerry-core/parser/js/byte-code.h
+2 -4
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@@ -298,11 +298,9 @@
VM_OC_NEW | VM_OC_PUT_STACK) \
CBC_OPCODE (CBC_EVAL, CBC_NO_FLAG, 0, \
VM_OC_EVAL) \
CBC_OPCODE (CBC_DEFINE_VARS, CBC_HAS_LITERAL_ARG, 0, \
CBC_OPCODE (CBC_CREATE_VAR, CBC_HAS_LITERAL_ARG, 0, \
VM_OC_NONE) \
CBC_OPCODE (CBC_INITIALIZE_VAR, CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, 0, \
VM_OC_NONE) \
CBC_OPCODE (CBC_INITIALIZE_VARS, CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, 0, \
CBC_OPCODE (CBC_INIT_LOCAL, CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, 0, \
VM_OC_NONE) \
CBC_OPCODE (CBC_SET_BYTECODE_PTR, CBC_NO_FLAG, 0, \
VM_OC_NONE) \