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# Actual compilation of the vector of tokens, ported from the "dirty tnsl"
# that was originally written for the interpreter
# CompData represents three vectors:
# hsec - the heading of the output assembly
# dsec - the data tied to the assembly
# csec - the .text section that is the code of the assembly
struct CompData {
Vector
hsec,
dsec,
csec
}
/; method CompData
/; start
self.hsec.start(1)
self.dsec.start(1)
self.csec.start(1)
;/
/; add (CompData c)
self.hsec.add(c.hsec)
self.dsec.add(c.dsec)
self.csec.add(c.csec)
;/
/; _del
self.hsec._del()
self.dsec._del()
self.csec._del()
;/
/; write_file(~void fd)
/; loop (int i = 0; i < self.hsec.num_el) [i++]
_write_byte(fd, self.hsec.get(i))
;/
/; loop (int i = 0; i < self.dsec.num_el) [i++]
_write_byte(fd, self.dsec.get(i))
;/
/; loop (int i = 0; i < self.csec.num_el) [i++]
_write_byte(fd, self.csec.get(i))
;/
;/
;/
# Path represents the actual path of a file
# that we are trying to tokenize
# Assumes that the last item in the path array is a file name
struct Path {
int
path_count,
~~uint8
split_path
}
/; method Path
/; start (~uint8 path)
self.split_path = _alloc(8)
self.path_count = 0
self.relative_file(path)
;/
/; copy [Path]
Path out
~uint8 f_pth = self.full_path()
out.start(f_pth)
_delete(f_pth)
return out
;/
/; relative_file(~uint8 rel_path)
# Assume the last string is the file name
/; if (self.path_count > 0)
int idx = self.path_count - 1
_delete(self.split_path{idx})
self.path_count--
;/
~uint8 n_ptr = _alloc(1)
n_ptr{0} = 0
int idx = self.path_count
/; loop (int i = 0; i < cstr_len(rel_path)) [i++]
/; if (rel_path{i} == '\\' || rel_path{i} == '/')
/; if (cstr_len(n_ptr) > 0)
self.path_count++
idx = self.path_count
self.split_path = _realloc(self.split_path, idx * 8)
self.split_path{idx - 1} = n_ptr
n_ptr = _alloc(1)
n_ptr{0} = 0
;/
;; else
idx = cstr_len(n_ptr)
n_ptr = _realloc(n_ptr, idx + 2)
n_ptr{idx} = rel_path{i}
n_ptr{idx + 1} = 0
;/
;/
/; if (cstr_len(n_ptr) > 0)
self.path_count++
idx = self.path_count
self.split_path = _realloc(self.split_path, idx * 8)
self.split_path{idx - 1} = n_ptr
;/
;/
/; full_path [~uint8]
~uint8 pth = _alloc(1)
pth{0} = 0
~uint8 w_ptr = self.split_path{0}
/; loop (int i = 0; i < self.path_count) [i++]
w_ptr = self.split_path{i}
int old_len = cstr_len(pth)
int new_len = old_len + cstr_len(w_ptr)
pth = _realloc(pth, new_len + 1)
pth{new_len} = 0
/; loop (int j = 0; j < cstr_len(w_ptr)) [j++]
pth{old_len + j} = w_ptr{j}
;/
/; if (i < self.path_count - 1)
pth = _realloc(pth, new_len + 2)
pth{new_len} = '/'
pth{new_len + 1} = 0
;/
;/
return pth
;/
/; open_read [~void]
~uint8 path = self.full_path()
~void out = _open_file(path)
_delete(path)
return out
;/
/; open_write [~void]
~uint8 path = self.full_path()
~void out = _create_file(path)
_delete(path)
return out
;/
/; print_all
/; loop (int i = 0; i < self.path_count) [i++]
_printf(self.split_path{i})
;/
;/
/; _del
/; loop (int i = 0; i < self.path_count) [i++]
_delete(self.split_path{i})
;/
_delete(self.split_path)
;/
;/
########################################
# Compiler functions - here be dragons #
########################################
enum POINTER_TYPE [uint8] {
POINTER = 0,
REFERENCE = 1,
ARRAY = 2
}
# 88 bytes long
struct Type {
int s,
~uint8 name,
Vector ptr_chain,
Vector members,
~Module mod
}
/; method Type
/; start
self.ptr_chain.start(1)
# 136 is the size of one Variable struct
self.members.start(136)
;/
/; _del
self.ptr_chain._del()
self.members._del()
;/
;/
#############
# Variables #
#############
# 136 bytes long
struct Variable {
Vector name,
Type data_type,
int location,
loc_type
}
/; method Variable
;/
###########
# Modules #
###########
struct Module {
int i
}
/; method Module
/; start
;/
/; _del
;/
;/
/; base_loop_1 (Path in, Vector tokens, ~Module mod)
;/
/; base_loop_2 (Path in, Vector tokens, ~Module mod, ~CompData out)
;/
{}uint8 w_cstart = "Reading file: \0"
{}uint8 w_nl = "\n\0"
/; compile_file (Path in, ~Module mod) [CompData]
~uint8 pth = in.full_path()
_printf(~w_cstart{0})
_printf(pth)
_printf(~w_nl{0})
_delete(pth)
~void fd = in.open_read()
Vector tokens = tokenize_file(fd)
_close_file(fd)
base_loop_1(in, tokens, mod)
CompData out
out.start()
base_loop_2(in, tokens, mod, ~out)
return out
;/
{}uint8 w_dsec = "\nsection .data\n\n\0"
{}uint8 w_csec = "\nsection .text\n\n\0"
{}uint8 w_compiled = "Compilation complete! Writing file.\n\0"
/; compile (Path in, out)
Module root
root.start()
CompData cd
cd = compile_file(in, ~root)
_printf(~w_compiled{0})
# Section headers for the asm
~uint8 shed = ~w_dsec{0}
cd.hsec.add_str(shed)
shed = ~w_csec{0}
cd.dsec.add_str(shed)
~void fout = out.open_write()
cd.write_file(fout)
_close_file(fout)
root._del()
cd._del()
;/
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