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Some minor fixes in parser: Do not warn on escape sequences. Allow 'new' operator without parens. Fix 'var' parsing in preparser. Fix a test.

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This commit is contained in:
Ilmir Usmanov 2014-10-08 16:31:50 +04:00
parent f2760fdac6
commit c3f493c693
3 changed files with 28 additions and 11 deletions
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2
src/libjsparser/lexer.c
View File

@ -777,7 +777,7 @@ parse_string (void)
/* Only single escape character is allowed. */
if (LA (1) == 'x' || LA (1) == 'u' || __isdigit (LA (1)))
{
PARSE_WARN ("Escape sequences are ignored yet", token_start - buffer_start);
// PARSE_WARN ("Escape sequences are ignored yet", token_start - buffer_start);
consume_char ();
consume_char ();
continue;

35
src/libjsparser/parser.c
View File

@ -1327,13 +1327,30 @@ parse_member_expression (idx_t *this_arg)
parse_member_expression (this_arg);
skip_newlines ();
if (this_arg)
if (token_is (TOK_OPEN_PAREN))
{
parse_argument_list (AL_CONSTRUCT_EXPR, ID(1), *this_arg); // push obj
if (this_arg)
{
parse_argument_list (AL_CONSTRUCT_EXPR, ID(1), *this_arg); // push obj
}
else
{
parse_argument_list (AL_CONSTRUCT_EXPR, ID(1), INVALID_VALUE); // push obj
}
}
else
{
parse_argument_list (AL_CONSTRUCT_EXPR, ID(1), INVALID_VALUE); // push obj
lexer_save_token (TOK ());
STACK_PUSH (IDX, next_temp_name ());
if (this_arg)
{
DUMP_OPCODE_3 (construct_n, ID (1), ID (2), 1);
DUMP_OPCODE_3 (meta, OPCODE_META_TYPE_THIS_ARG, *this_arg, INVALID_VALUE);
}
else
{
DUMP_OPCODE_3 (construct_n, ID (1), ID (2), 0);
}
}
STACK_SWAP (IDX);
@ -1631,9 +1648,9 @@ parse_unary_expression (void)
else if (is_keyword (KW_VOID))
{
STACK_PUSH (IDX, next_temp_name ());
DUMP_OPCODE_3 (assignment, ID(1), OPCODE_ARG_TYPE_VARIABLE, ID (2));
DUMP_OPCODE_3 (assignment, ID(1), OPCODE_ARG_TYPE_SIMPLE, ECMA_SIMPLE_VALUE_UNDEFINED);
STACK_SWAP (IDX);
NEXT (unary_expression);
DUMP_OPCODE_3 (assignment, ID(2), OPCODE_ARG_TYPE_VARIABLE, ID (1));
DUMP_OPCODE_3 (assignment, ID(2), OPCODE_ARG_TYPE_SIMPLE, ECMA_SIMPLE_VALUE_UNDEFINED);
STACK_DROP (IDX, 1);
break;
}
@ -3225,7 +3242,7 @@ parse_source_element (void)
}
static void
skip_optional_name_and_braces (void)
skip_optional_name_and_parens (void)
{
if (token_is (TOK_NAME))
{
@ -3236,7 +3253,7 @@ skip_optional_name_and_braces (void)
current_token_must_be (TOK_OPEN_PAREN);
}
while (!token_is (TOK_CLOSE_BRACE))
while (!token_is (TOK_CLOSE_PAREN))
{
skip_newlines ();
}
@ -3272,7 +3289,7 @@ static void
skip_function (void)
{
skip_newlines ();
skip_optional_name_and_braces ();
skip_optional_name_and_parens ();
skip_newlines ();
skip_braces ();
}

2
tests/jerry-test-suite/08/08.04/08.04-002.js
View File

@ -12,4 +12,4 @@
// See the License for the specific language governing permissions and
// limitations under the License.
assert("x\0a" < "x\0b") && ("x\0b" < "x\0c"));
assert(("x\0a" < "x\0b") && ("x\0b" < "x\0c"));