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Rework storing the line/column/bytecode info (#4707)

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This information is stored in a separate memory block instead
of being part of the byte code. Snapshot does not supported.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2021-07-15 13:45:10 +02:00
committed by GitHub
parent 4be05a74eb
commit 998e49a969
22 changed files with 1218 additions and 201 deletions
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jerry-core/parser/js/js-parser-util.c
-54
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@@ -453,60 +453,6 @@ parser_emit_cbc_push_number (parser_context_t *context_p, /**< context */
context_p->last_cbc.value = (uint16_t) (value - 1);
} /* parser_emit_cbc_push_number */
#if JERRY_LINE_INFO
/**
* Append a line info data
*/
void
parser_emit_line_info (parser_context_t *context_p, /**< context */
uint32_t line, /**< current line */
bool flush_cbc) /**< flush last byte code */
{
if (flush_cbc && context_p->last_cbc_opcode != PARSER_CBC_UNAVAILABLE)
{
parser_flush_cbc (context_p);
}
#if JERRY_PARSER_DUMP_BYTE_CODE
if (context_p->is_show_opcodes)
{
JERRY_DEBUG_MSG (" [%3d] CBC_EXT_LINE %d\n", (int) context_p->stack_depth, line);
}
#endif /* JERRY_PARSER_DUMP_BYTE_CODE */
parser_emit_two_bytes (context_p, CBC_EXT_OPCODE, CBC_EXT_LINE);
context_p->byte_code_size += 2;
context_p->last_line_info_line = line;
const uint32_t max_shift_plus_7 = 7 * 5;
uint32_t shift = 7;
while (shift < max_shift_plus_7 && (line >> shift) > 0)
{
shift += 7;
}
do
{
shift -= 7;
uint8_t byte = (uint8_t) ((line >> shift) & CBC_LOWER_SEVEN_BIT_MASK);
if (shift > 0)
{
byte = (uint8_t) (byte | CBC_HIGHEST_BIT_MASK);
}
PARSER_APPEND_TO_BYTE_CODE (context_p, byte);
context_p->byte_code_size++;
}
while (shift > 0);
} /* parser_emit_line_info */
#endif /* JERRY_LINE_INFO */
/**
* Append a byte code with a branch argument
*/