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added more code

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hyunghwan.chung 2015-06-01 16:59:07 +00:00
parent 72d74b48de
commit 03aab810b9
3 changed files with 90 additions and 48 deletions
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124
stix/lib/comp.c
View File

@ -68,6 +68,7 @@ enum mth_type_t
MTH_CLASS
};
/* NOTE store_opcodes table depends on the order of var_tsype_t */
enum var_type_t
{
VAR_INSTANCE,
@ -141,7 +142,7 @@ enum ksym_id_t
};
typedef enum ksym_id_t ksym_id_t;
static int compile_method_expression (stix_t* stix);
static STIX_INLINE int is_spacechar (stix_uci_t c)
{
@ -1021,7 +1022,6 @@ static int end_include (stix_t* stix)
/* ---------------------------------------------------------------------
* Parser and Code Generator
* --------------------------------------------------------------------- */
#if 0
#define EMIT_CODE_TEST(fsc,high,low) \
do { if (emit_code_test(fsc,high,low) <= -1) return -1; } while (0)
@ -1086,29 +1086,31 @@ static int end_include (stix_t* stix)
#endif
#endif
/* --------------------------------------------------------------------- */
#define EMIT_CODE(stix, code) \
do { if (emit_code(stix, code, STIX_COUNTOF(code)) <= -1) return -1; } while (0);
#define CODE_MAKE(x,y) (((x) << 4) | y)
#define CODE_MAX_INDEX 0xFFFF
static stix_byte_t code_dup_stacktop[] = { 0x0F, 0x01 };
static stix_byte_t code_pop_stacktop[] = { 0x0F, 0x02 };
#define CODE_EXTEND 0x0
#define CODE_EXTEND_DOUBLE 0x1
#define CODE_STORE_INTO_INSTVAR 0x7 /* pop and store */
#define CODE_STORE_INTO_CLASSSIDEVAR 0x8 /* pop and store */
#define CODE_STORE_INTO_TEMPVAR 0x9 /* pop and store */
#define CODE_SPECIAL 0xF
static stix_byte_t code_return_message_stacktop[] = { 0x0F, 0x03 };
static stix_byte_t code_return_block_stacktop[] = { 0x0F, 0x04 };
static stix_byte_t code_return_message_receiver[] = { 0x0F, 0x05 };
/* special code */
#define CODE_DUP_STACKTOP 0x1
#define CODE_POP_STACKTOp 0x2
#define CODE_RETURN_MESSAGE_STACKTOP 0x3
#define CODE_RETURN_BLOCK_STACKTOP 0x4
#define CODE_RETURN_MESSAGE_RECEIVER 0x5
#define CODE_EXEC_PRIMITIVE 0xF
static stix_byte_t code_exec_primitive[] = { 0x0F, 0x0F };
static STIX_INLINE int emit_code (stix_t* stix, const stix_byte_t* ptr, stix_size_t len)
static STIX_INLINE int emit_code (stix_t* stix, stix_byte_t code)
{
stix_size_t i;
i = stix->c->mth.code.len + len;
i = stix->c->mth.code.len + 1;
if (i > stix->c->mth.code_capa)
{
stix_byte_t* tmp;
@ -1122,12 +1124,34 @@ static STIX_INLINE int emit_code (stix_t* stix, const stix_byte_t* ptr, stix_siz
stix->c->mth.code_capa = i;
}
for (i = 0; i < len; i++)
stix->c->mth.code.ptr[stix->c->mth.code.len++] = ptr[i];
stix->c->mth.code.ptr[stix->c->mth.code.len++] = code;
return 0;
}
static int emit_pop_and_store (stix_t* stix, stix_size_t index, int store_code)
{
STIX_ASSERT (index <= CODE_MAX_INDEX);
if (index > 0xFF)
{
if (emit_code(stix, CODE_MAKE(CODE_EXTEND_DOUBLE, store_code)) <= -1 ||
emit_code(stix, index >> 8) <= -1 ||
emit_code(stix, index & 0xFF) <= -1) return -1;
}
else if (index > 0xF)
{
if (emit_code(stix, CODE_MAKE(CODE_EXTEND, store_code)) <= -1 ||
emit_code(stix, index) <= -1) return -1;
}
else
{
if (emit_code(stix, CODE_MAKE(store_code, index)) <= -1) return -1;
}
return 0;
}
#if 0
static int emit_push_stack (stix_t* fsc, stix_stack_operand_t type, int pos)
{
@ -2306,6 +2330,8 @@ static int compile_basic_expression (stix_t* stix, const stix_ucs_t* assignee)
return -1;
}
static int compile_method_expression (stix_t* stix);
static int compile_assignment_expression (stix_t* stix, const stix_ucs_t* assignee, const stix_ioloc_t* assignee_loc)
{
/*
@ -2332,31 +2358,48 @@ printf ("\n");
/* assigning to a temporary variable */
if (compile_method_expression(stix) <= -1) return -1;
/* TODO: */
/*EMIT_STORE_TO_TEMPORARY (stix, index);*/
return 0;
}
if (find_class_level_variable (stix, stix->c->cls.self_oop, assignee, &var) <= -1)
if (index > CODE_MAX_INDEX)
{
set_syntax_error (stix, STIX_SYNERR_ASSIGNEEUNDCL, assignee_loc, assignee);
set_syntax_error (stix, STIX_SYNERR_ASSIGNEEUNEXP, assignee_loc, assignee);
return -1;
}
/* TODO */
switch (var.type)
return emit_pop_and_store (stix, index, CODE_STORE_INTO_TEMPVAR);
}
else if (find_class_level_variable(stix, stix->c->cls.self_oop, assignee, &var) >= 0)
{
case VAR_INSTANCE:
break;
/* THIS TABLE MUST MATCH var_type_t */
static stix_byte_t store_opcodes[] =
{
CODE_STORE_INTO_INSTVAR,
CODE_STORE_INTO_CLASSSIDEVAR,
CODE_STORE_INTO_CLASSSIDEVAR
};
/* --------------------------------- */
case VAR_CLASS:
break;
stix_size_t index;
case VAR_CLASSINST:
break;
index = var.pos;
if (var.type != VAR_INSTANCE)
{
STIX_ASSERT (var.type == VAR_CLASS || var.type == VAR_CLASSINST);
/* TODO: calculate the right position/index */
}
return 0;
if (compile_method_expression(stix) <= -1) return -1;
if (index > CODE_MAX_INDEX)
{
set_syntax_error (stix, STIX_SYNERR_ASSIGNEEUNEXP, assignee_loc, assignee);
return -1;
}
return emit_pop_and_store (stix, index, store_opcodes[var.type]);
}
set_syntax_error (stix, STIX_SYNERR_ASSIGNEEUNDCL, assignee_loc, assignee);
return -1;
#if 0
if (stix_get_instance_variable_index (stx, stix->method_class, target, &i) == 0)
@ -2440,14 +2483,12 @@ static int compile_method_statement (stix_t* stix)
{
GET_TOKEN (stix);
if (compile_method_expression(stix) <= -1) return -1;
EMIT_CODE (stix, code_return_message_stacktop);
return emit_code (stix, CODE_MAKE(CODE_SPECIAL, CODE_RETURN_MESSAGE_STACKTOP));
}
else
{
if (compile_method_expression(stix) <= -1) return -1;
return compile_method_expression(stix);
}
return 0;
}
@ -2480,8 +2521,7 @@ static int compile_method_statements (stix_t* stix)
}
/* TODO: size optimization. emit code_return_receiver only if it's not previously emitted */
EMIT_CODE (stix, code_return_message_receiver);
return 0;
return emit_code (stix, CODE_MAKE(CODE_SPECIAL, CODE_RETURN_MESSAGE_RECEIVER));
}
static int add_compiled_method (stix_t* stix)

3
stix/lib/main.c
View File

@ -242,7 +242,8 @@ static char* syntax_error_msg[] =
"duplicate temporary variable name",
"duplicate variable name",
"cannot assign to argument",
"undeclared assignee"
"undeclared assignee",
"assignee unexpressable in compiled code"
};
int main (int argc, char* argv[])

3
stix/lib/stix-prv.h
View File

@ -287,7 +287,8 @@ enum stix_synerrnum_t
STIX_SYNERR_TMPRNAMEDUP, /* duplicate temporary variable name */
STIX_SYNERR_VARNAMEDUP, /* duplicate variable name */
STIX_SYNERR_ASSIGNEEARG, /* cannot assign to argument */
STIX_SYNERR_ASSIGNEEUNDCL /* undeclared assignee */
STIX_SYNERR_ASSIGNEEUNDCL, /* undeclared assignee */
STIX_SYNERR_ASSIGNEEUNEXP /* assignee unexpressable in compiled code */
};
typedef enum stix_synerrnum_t stix_synerrnum_t;