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Fixing break / continue, nested into 'try', 'with' blocks.

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Related issue: #128

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
This commit is contained in:
Ruben Ayrapetyan
2015-06-02 17:06:43 +03:00
parent 8433df3097
commit ac87616f05
13 changed files with 440 additions and 146 deletions
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jerry-core/parser/js/opcodes-dumper.cpp
+82 -20
View File
@@ -2142,22 +2142,50 @@ dump_continue_iterations_check (operand op)
STACK_DROP (next_iterations, 1);
}
/**
* Dump template of 'jmp_break_continue' instruction.
*
* Note:
* the instruction's flags field is written later (see also: rewrite_breaks, rewrite_continues).
*
* @return position of dumped instruction
*/
void
dump_continue_for_rewrite (void)
dump_break_continue_for_rewrite (bool is_break, /**< flag indicating whether 'break' should be dumped (true)
* or 'continue' (false) */
bool is_simple_jump) /**< flag indicating, whether simple jump
* or 'jmp_break_continue' template should be dumped */
{
STACK_PUSH (continues, serializer_get_current_opcode_counter ());
const opcode_t opcode = getop_jmp_down (INVALID_VALUE, INVALID_VALUE);
serializer_dump_op_meta (create_op_meta_000 (opcode));
}
if (is_break)
{
STACK_PUSH (breaks, serializer_get_current_opcode_counter ());
}
else
{
STACK_PUSH (continues, serializer_get_current_opcode_counter ());
}
void
dump_break_for_rewrite (void)
{
STACK_PUSH (breaks, serializer_get_current_opcode_counter ());
const opcode_t opcode = getop_jmp_down (INVALID_VALUE, INVALID_VALUE);
serializer_dump_op_meta (create_op_meta_000 (opcode));
}
opcode_t opcode;
if (is_simple_jump)
{
opcode = getop_jmp_down (INVALID_VALUE, INVALID_VALUE);
}
else
{
opcode = getop_jmp_break_continue (INVALID_VALUE, INVALID_VALUE);
}
serializer_dump_op_meta (create_op_meta_000 (opcode));
} /* dump_break_continue_for_rewrite */
/**
* Write jump target positions into previously dumped templates of instructions
* for currently processed set of 'break' statements.
*
* See also:
* dump_break_continue_for_rewrite
* start_collecting_breaks
*/
void
rewrite_breaks (void)
{
@@ -2168,9 +2196,22 @@ rewrite_breaks (void)
idx_t id1, id2;
split_opcode_counter ((opcode_counter_t) (break_target - break_oc), &id1, &id2);
op_meta break_op_meta = serializer_get_op_meta (break_oc);
JERRY_ASSERT (break_op_meta.op.op_idx == OPCODE (jmp_down));
break_op_meta.op.data.jmp_down.opcode_1 = id1;
break_op_meta.op.data.jmp_down.opcode_2 = id2;
bool is_simple_jump = (break_op_meta.op.op_idx == OPCODE (jmp_down));
if (is_simple_jump)
{
break_op_meta.op.data.jmp_down.opcode_1 = id1;
break_op_meta.op.data.jmp_down.opcode_2 = id2;
}
else
{
JERRY_ASSERT (break_op_meta.op.op_idx == OPCODE (jmp_break_continue));
break_op_meta.op.data.jmp_break_continue.opcode_1 = id1;
break_op_meta.op.data.jmp_break_continue.opcode_2 = id2;
}
serializer_rewrite_op_meta (break_oc, break_op_meta);
}
STACK_ITERATE_END ();
@@ -2178,8 +2219,16 @@ rewrite_breaks (void)
STACK_DROP (break_targets, 1);
STACK_DROP (breaks, STACK_SIZE (breaks) - STACK_TOP (U8));
STACK_DROP (U8, 1);
}
} /* rewrite_breaks */
/**
* Write jump target positions into previously dumped templates of instructions
* for currently processed set of 'continue' statements.
*
* See also:
* dump_break_continue_for_rewrite
* start_collecting_continues
*/
void
rewrite_continues (void)
{
@@ -2190,9 +2239,22 @@ rewrite_continues (void)
idx_t id1, id2;
split_opcode_counter ((opcode_counter_t) (continue_target - continue_oc), &id1, &id2);
op_meta continue_op_meta = serializer_get_op_meta (continue_oc);
JERRY_ASSERT (continue_op_meta.op.op_idx == OPCODE (jmp_down));
continue_op_meta.op.data.jmp_down.opcode_1 = id1;
continue_op_meta.op.data.jmp_down.opcode_2 = id2;
bool is_simple_jump = (continue_op_meta.op.op_idx == OPCODE (jmp_down));
if (is_simple_jump)
{
continue_op_meta.op.data.jmp_down.opcode_1 = id1;
continue_op_meta.op.data.jmp_down.opcode_2 = id2;
}
else
{
JERRY_ASSERT (continue_op_meta.op.op_idx == OPCODE (jmp_break_continue));
continue_op_meta.op.data.jmp_break_continue.opcode_1 = id1;
continue_op_meta.op.data.jmp_break_continue.opcode_2 = id2;
}
serializer_rewrite_op_meta (continue_oc, continue_op_meta);
}
STACK_ITERATE_END ();
@@ -2200,7 +2262,7 @@ rewrite_continues (void)
STACK_DROP (continue_targets, 1);
STACK_DROP (continues, STACK_SIZE (continues) - STACK_TOP (U8));
STACK_DROP (U8, 1);
}
} /* rewrite_continues */
void
start_dumping_case_clauses (void)