# Common things for NIT compilation and C generation
package compiling_base
-import syntax
+import mmloader
private import utils
+import primitive_info
+import program
redef class ToolContext
- readable writable attr _global: Bool = false
- readable writable attr _compdir: String
- readable writable attr _clibdir: String
- readable writable attr _bindir: String
- readable writable attr _output_file: String
- readable writable attr _boost: Bool = false
- readable writable attr _no_cc: Bool = false
- readable writable attr _ext_prefix: String
+ readable writable var _compdir: nullable String = null
+ readable writable var _clibdir: nullable String = null
+ readable writable var _bindir: nullable String = null
+ readable writable var _output_file: nullable String = null
+ readable writable var _boost: Bool = false
+ readable writable var _no_cc: Bool = false
+ readable writable var _cc_link: Bool = false
+ readable writable var _cc_libs: Array[String] = new Array[String]
+ readable writable var _cc_lib_paths: Array[String] = new Array[String]
+ readable writable var _cc_include_paths: Array[String] = new Array[String]
+ readable writable var _ext_prefix: String = ""
end
# Class used to generate files.
# Note also that this class is unefficient and poorly designed thus requires love.
class CompilerVisitor
# Add a line in the current declaration block
- meth add_decl(s: String)
+ fun add_decl(s: String...)
do
- if _indent_level >= 8 then
- _ctx.decls.add("\t\t" + s)
- else
- _ctx.decls.add(" " * _indent_level + s)
- end
+ add_line_to(_ctx.decls, s)
end
# Add a line in the current instr block
- meth add_instr(s: String)
+ fun add_instr(s: String...)
+ do
+ add_line_to(_ctx.instrs, s)
+ end
+
+ fun add_line_to(a: Array[String], s: Array[String])
do
if _indent_level >= 8 then
- _ctx.instrs.add("\t\t" + s)
+ a.add("\t\t")
else
- _ctx.instrs.add(" " * _indent_level + s)
+ for i in [0.._indent_level[ do
+ a.add(" ")
+ end
end
+ for i in s do
+ a.add(i)
+ end
+ a.add("\n")
end
+ # Add a assignment between a variable and an expression
+ fun add_assignment(v: String, s: String)
+ do
+ if v != s then
+ add_instr(v, " = ", s, ";")
+ end
+ end
+
+ # C outputs written outside the current C function.
+ readable writable var _out_contexts: Array[CContext] = new Array[CContext]
+
# Return a unique new number for the instance
- meth new_number: Int
+ fun new_number: Int
do
var res = _number_cpt
_number_cpt = res + 1
return res
end
# next number for new_number
- attr _number_cpt: Int = 0
+ var _number_cpt: Int = 0
# Add an indent level.
# New decl and instr will be indented.
- meth indent do _indent_level += 1
+ fun indent do _indent_level += 1
# Remove an indent level.
- meth unindent
+ fun unindent
do
_indent_level -= 1
if _indent_level < 0 then _indent_level = 0
end
# Return a big string containing all decl and instr
- redef meth to_s
+ redef fun to_s
do
var out = new Array[String]
out.append(_ctx.decls)
out.append(_ctx.instrs)
- out.add("")
- return out.join("\n")
+ return out.to_s
end
# The processed module
- readable attr _module: MMSrcModule
+ readable var _module: MMModule
# Where instr and decl are stored
- readable writable attr _ctx: CContext = new CContext
+ readable writable var _ctx: CContext = new CContext
# The current indent lever
- readable writable attr _indent_level: Int = 0
+ readable writable var _indent_level: Int = 0
- # The ToolContext info
- readable attr _tc: ToolContext
+ # The program we are compiling
+ readable var _program: Program
# Create a new CompilerVisitor based on a module
- init(module: MMSrcModule, tc: ToolContext)
+ init(module: MMModule, p: Program)
do
_module = module
- _tc = tc
+ _program = p
end
end
# Where instr and decl are stored for a module
# Note that this class is as badly designed as CompilerVisitor
class CContext
- readable attr _decls: Array[String] = new Array[String]
- readable attr _instrs: Array[String] = new Array[String]
+ readable var _decls: Array[String] = new Array[String]
+ readable var _instrs: Array[String] = new Array[String]
- meth append(c: CContext)
+ fun append(c: CContext)
do
_instrs.append(c.decls)
_instrs.append(c.instrs)
end
- meth merge(c: CContext)
+ fun merge(c: CContext)
do
_decls.append(c.decls)
_instrs.append(c.instrs)
redef class MMGlobalProperty
# C symbol refering a method inocation
- meth meth_call: String
+ fun meth_call: String
do
return "CALL_{intro.cname}"
end
# C symbol refering an attribure access
- meth attr_access: String
+ fun attr_access: String
do
return "ATTR_{intro.cname}"
end
redef class MMGlobalClass
# C symbol refering the identifier of the class
- meth id_id: String
+ fun id_id: String
do
return "ID_{intro.name}"
end
# C symbol refering the color of the class (for subtype tests)
- meth color_id: String
+ fun color_id: String
do
return "COLOR_{intro.name}"
end
# C symbol refering the init table position of the class (for constructor linearization)
- meth init_table_pos_id: String
+ fun init_table_pos_id: String
do
return "INIT_TABLE_POS_{intro.name}"
end
end
-redef class MMLocalClass
- # Cached primitive_info result
- attr _primitive_info_cache: PrimitiveInfo
-
- # If primitive_info result cached?
- attr _primitive_info_b: Bool = false
-
- # Return the primitive information of the class.
- # Return null if the class is not primitive
- # FIXME: Only here since there is no universal type yet
- meth primitive_info: PrimitiveInfo
- do
- if _primitive_info_b == true then return _primitive_info_cache
-
- var ctypes = once primitive_ctypes
- if ctypes.has_key(name) then
- _primitive_info_cache = ctypes[name]
- _primitive_info_b = true
- return _primitive_info_cache
- end
- var i = ctypes.iterator
- while i.is_ok do
- var n = i.key
- if module.has_global_class_named(n) then
- var c = module.class_by_name(n)
- if cshe < c then
- _primitive_info_cache = i.item
- _primitive_info_b = true
- return _primitive_info_cache
- end
- end
- i.next
- end
- _primitive_info_b = true
- return null
- end
-
- # Static information of primitive types
- private meth primitive_ctypes: HashMap[Symbol, PrimitiveInfo]
- do
- var res = new HashMap[Symbol, PrimitiveInfo]
- var pnames = ["Int", "Char", "Bool", "Float", "NativeString", "NativeArray", "Pointer"]
- var tagged = [true, true, true, false, false, false, false]
- var cnames = ["bigint", "char", "int", "float", "char *", "val_t *", "void *"]
- for i in [0..pnames.length[ do
- var n = pnames[i].to_symbol
- var pi = new PrimitiveInfo(n, tagged[i], cnames[i])
- res[n] = pi
- end
- return res
- end
-end
-
-# Information about a primitive class
-class PrimitiveInfo
- # The name of the class
- readable attr _name: Symbol
-
- # Is the class tagged (aka not boxed)
- readable attr _tagged: Bool
-
- # The corresponding c type for the primitive value
- readable attr _cname: String
-
- private init(n: Symbol, t: Bool, c: String)
- do
- _name = n
- _tagged = t
- _cname = c
- end
-end
-
-redef class MMType
- # The corresponding c type
- meth cname: String
- do
- var pi = local_class.primitive_info
- if pi == null then
- return "val_t"
- else
- return pi.cname
- end
- end
-
- # The default c value for uninitialized types.
- # Return "null" for non primitive types and something more specific for primitive types
- meth default_cvalue: String
- do
- var pi = local_class.primitive_info
- if pi != null and pi.tagged then
- return "TAG_{local_class.name}(({pi.cname})0)"
- else
- return "NIT_NULL"
- end
- end
-
- # Box (or tag) a primitive value
- # Is identity if not primitive
- meth boxtype(s: String): String
- do
- var pi = local_class.primitive_info
- if pi == null then
- return s
- else if pi.tagged then
- return "TAG_{local_class.name}({s})"
- else
- return "BOX_{local_class.name}({s})"
- end
- end
-
- # Unbox (or untag) a primitive value
- # Is identity if not primitive
- meth unboxtype(s: String): String
- do
- var pi = local_class.primitive_info
- if pi == null then
- return s
- else if pi.tagged then
- return "UNTAG_{local_class.name}({s})"
- else
- return "UNBOX_{local_class.name}({s})"
- end
- end
-end
-
redef class MMLocalProperty
# Cacher result of cname
- attr _cname_cache: String
+ var _cname_cache: nullable String
# The mangled name of the method
- meth cname: String
+ fun cname: String
do
- if _cname_cache == null then
- _cname_cache = cmangle(module.name, local_class.name, name)
+ var cname = _cname_cache
+ if cname == null then
+ cname = cmangle(module.name, local_class.name, name)
+ _cname_cache = cname
end
- return _cname_cache
+ return cname
end
# C macro used to get the function for the call of a super property
- meth super_meth_call: String
+ fun super_meth_call: String
do
return "CALL_SUPER_{cname}"
end
nitlanguage / nit.git / blobdiff