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struct Function {
~uint8 name,
utils.Vector
inputs,
outputs,
~parse.Node _up,
}
/; method Function
/; init (~parse.Node n)
self.name = utils.strcpy(n`.data)
self._up = n
Var v
self.inputs.init(len v)
self.outputs.init(len v)
;/
/; _resolve_dlist (~Module parent, ~parse.Node dl)
~parse.Node tn = NULL
~parse.Node n
/; loop (int i = 0; i < dl`.sub.count) [i++]
n = dl`.sub.get(i)
/; if (n`._type == parse.NTYPE_TYPE)
tn = n
;; else if (n`._type == parse.NTYPE_ID)
/; if (tn == NULL)
_printf("Identifier declared in parameter list before any type was found!\n\0")
return
;/
Var p
p.init(tn, n)
p._resolve_type(parent)
self.inputs.push(~p)
;/
;/
;/
/; _resolve_tlist (~Module parent, ~parse.Node tl)
~parse.Node n
parse.Node dummy
dummy.data = "### OUTPUT ###\0"
/; loop (int i = 0; i < tl`.sub.count) [i++]
n = tl`.sub.get(i)
/; if (n`._type == parse.NTYPE_TYPE)
Var r
r.init(n, ~dummy)
r._resolve_type(parent)
self.outputs.push(~r)
;/
;/
;/
/; _resolve_type (~Module parent)
~parse.Node _up = self._up
/; if (_up`.sub.count < 1)
return
;/
~parse.Node lst = _up`.sub.get(0)
/; if (lst`._type == parse.NTYPE_DLIST)
self._resolve_dlist(parent, lst)
/; if (_up`.sub.count > 1)
lst = _up`.sub.get(1)
;/
;/
/; if (lst`._type == parse.NTYPE_TLIST)
self._resolve_tlist(parent, lst)
;/
;/
/; _build_func(~Module parent, ~CompBuf cb) [Scope]
Scope out
out.init(parent, cb, self.name)
out.parent = NULL
/; if (parent`.e == true)
# Add to the global exports if the parent is exported
~uint8 bl = out.base_label()
cb`.add_h("global \0")
cb`.add_h(bl)
cb`.add_h("\n\0")
_delete(bl)
;/
# Write label and opening
out.place_base_label()
cb`.add_c(" push rbp\n\0")
cb`.add_c(" lea rbp, [rsp + 8]\n\0")
cb`.add_c(" push r10\n\0")
cb`.add_c(" push r11\n\0")
cb`.add_c(" push r12\n\0")
cb`.add_c(" push r13\n\0")
cb`.add_c(" push r14\n\0")
cb`.add_c(" push r15 ; scope init\n\n\0")
# TODO: Add all params to the scope
return out
;/
/; _end_func(~Scope scope, ~CompBuf cb)
# TODO: place jmp label
# TODO: pop all saved vars
# TODO: ret
cb`.add_c(" lea rsp, [rbp - 56]\n\0")
cb`.add_c(" pop r15\n\0")
cb`.add_c(" pop r14\n\0")
cb`.add_c(" pop r13\n\0")
cb`.add_c(" pop r12\n\0")
cb`.add_c(" pop r11\n\0")
cb`.add_c(" pop r10\n\0")
cb`.add_c(" pop rbp\n\0")
cb`.add_c(" ret ; scope end\n\n\n\0")
scope`.end()
;/
/; _compile (~Module parent, ~CompBuf cb)
# Sanity check
~parse.Node _up = self._up
/; if (_up`.sub.count < 1)
~Scope s = self._build_func(parent, cb)
self._end_func(s, cb)
return
;/
# Skip past parameters and outputs
int i = 0
~parse.Node n = _up`.sub.get(i)
/; if (n`._type == parse.NTYPE_DLIST)
i++
/; if (_up`.sub.count > 1)
n = _up`.sub.get(1)
;/
;/
/; if (n`._type == parse.NTYPE_TLIST)
i++
;/
# Create scope
Scope fscope = self._build_func(parent, cb)
# Compile and then end scope
self._compile_statements(~fscope, i)
self._end_func(~fscope, cb)
;/
/; _compile_statements(~Scope s, int off)
;/
/; _print (int idt)
_indent(idt)
_printf("{ Function : \0")
_printf(self.name)
_printf("\n\0")
_indent(idt)
_printf(" inputs:\n\0")
~Var prtv
/; loop (int i = 0; i < self.inputs.count) [i++]
prtv = self.inputs.get(i)
prtv`._print(idt + 1)
;/
_indent(idt)
_printf(" outputs:\n\0")
/; loop (int i = 0; i < self.outputs.count) [i++]
prtv = self.outputs.get(i)
prtv`._print(idt + 1)
;/
_indent(idt)
_printf("}\n\0")
;/
/; end
_delete(self.name)
~Var v
/; loop (int i = 0; i < self.inputs.count) [i++]
v = self.inputs.get(i)
v`.end()
;/
self.inputs.end()
/; loop (int i = 0; i < self.outputs.count) [i++]
v = self.outputs.get(i)
v`.end()
;/
self.outputs.end()
;/
;/
|
