Added indirection to types in prep for function calls, full passthrough, and the first real hello world

stdlib/ast_transformation.krak

@@ -143,25 +143,31 @@ obj ast_transformation (Object) {
         // always get to pre-reffed level
         var real_node = get_node("pre_reffed", node)
         // check for indirection and step down
+        var indirection = 0
+        while (get_node("pre_reffed", real_node)) {
+            real_node = get_node("pre_reffed", real_node)
+            indirection++
+        }
         var type_syntax_str = concat_symbol_tree(real_node)
+        println(type_syntax_str + " *************************")
         // should take into account indirection and references...
         if (type_syntax_str == "void")
-            return type_ptr(base_type::void_return())
+            return type_ptr(base_type::void_return(), indirection)
         else if (type_syntax_str == "bool")
-            return type_ptr(base_type::boolean())
+            return type_ptr(base_type::boolean(), indirection)
         else if (type_syntax_str == "int")
-            return type_ptr(base_type::integer())
+            return type_ptr(base_type::integer(), indirection)
         else if (type_syntax_str == "float")
-            return type_ptr(base_type::floating())
+            return type_ptr(base_type::floating(), indirection)
         else if (type_syntax_str == "double")
-            return type_ptr(base_type::double_precision())
+            return type_ptr(base_type::double_precision(), indirection)
         else if (type_syntax_str == "char")
-            return type_ptr(base_type::character())
-        else if (/* check for function type*/ true)
-            return type_ptr(base_type::function())
+            return type_ptr(base_type::character(), indirection)
+        else if (/* check for function type*/ false)
+            return type_ptr(base_type::function(), indirection)
         else {
             // do lookup for objects, ADTs, templates, etc
-            return type_ptr(base_type::none())
+            return type_ptr(base_type::none(), indirection)
         }
     }
 /*NodeTree<ASTData>* ASTTransformation::transform(NodeTree<Symbol>* from, NodeTree<ASTData>* scope, std::vector<Type> types, bool limitToFunction, std::map<std::string, Type*> templateTypeReplacements) {*/
@@ -208,7 +214,7 @@ obj ast_transformation (Object) {
         var value_str = concat_symbol_tree(node)
         var value_type = null<type>()
         if (value_str[0] == '"')
-            value_type = type_ptr(base_type::character()) // and indirection, sigh
+            value_type = type_ptr(base_type::character(), 1)
         else if (value_str[0] == '\'')
             value_type = type_ptr(base_type::character())
         else {

stdlib/c_generator.krak

@@ -98,23 +98,25 @@ obj c_generator (Object) {
         return string("/* COULD NOT GENERATE */")
     }
     fun type_to_c(type: *type): string {
+        var indirection = string()
+        for (var i = 0; i < type->indirection; i++;) indirection += "*"
         match (type->base) {
-            base_type::none() return string("none")
-            base_type::template() return string("template")
-            base_type::template_type() return string("template_type")
-            base_type::void_return() return string("void")
-            base_type::boolean() return string("bool")
-            base_type::character() return string("char")
-            base_type::integer() return string("int")
-            base_type::floating() return string("float")
-            base_type::double_precision() return string("double")
+            base_type::none() return string("none") + indirection
+            base_type::template() return string("template") + indirection
+            base_type::template_type() return string("template_type") + indirection
+            base_type::void_return() return string("void") + indirection
+            base_type::boolean() return string("bool") + indirection
+            base_type::character() return string("char") + indirection
+            base_type::integer() return string("int") + indirection
+            base_type::floating() return string("float") + indirection
+            base_type::double_precision() return string("double") + indirection
             base_type::function() {
-                var temp = string("function: (")
+                var temp = indirection + string("function: (")
                 type->parameter_types.for_each(fun(parameter_type: *type) temp += parameter_type->to_string() + " ";)
                 return temp + ")" + type->return_type->to_string()
             }
         }
-        return string("impossible type")
+        return string("impossible type") + indirection
     }
 }
 

stdlib/parser.krak

@@ -79,6 +79,7 @@ obj parser (Object) {
         }
         input.addEnd(current_symbol)
         if (current_symbol == invalid_symbol()) {
+            println("**PARSE ERROR**")
             println("lexing failed for ")
             println(name)
             return null<tree<symbol>>()
@@ -104,11 +105,14 @@ obj parser (Object) {
 
         for (var i = 0; i < input.size; i++;) {
             if (gss.frontier_is_empty(i)) {
+                println("**PARSE ERROR**")
                 print(i)
                 print("th frontier is empty in file '")
                 print(name)
                 print("' with txt ")
                 print(input[i].to_string())
+                print(" line number: ")
+                print(find_line(i))
                 println()
                 return null<tree<symbol>>()
             }
@@ -127,9 +131,13 @@ obj parser (Object) {
             return gss.get_edge(acc_state, v0)
         }
 
+        println("**PARSE ERROR**")
         println("REJECTED")
         println("parsing (not lexing) failed for ")
         println(name)
+        print(" line number: ")
+        print(find_line(input.size))
+        println("(minus 2?)")
         return null<tree<symbol>>()
     }
     fun reducer(i: int) {
@@ -363,6 +371,14 @@ obj parser (Object) {
             return new<tree<symbol>>()->construct(null_symbol())
         return null<tree<symbol>>()
     }
+    fun find_line(token_no: int): int {
+        var line_no = 1
+        for (var i = 0; i < token_no; i++;)
+            for (var j = 0; j < input[i].data.length(); j++;)
+                if (input[i].data[j] == '\n')
+                    line_no++
+        return line_no
+    }
 }
 
 obj gss (Object) {

stdlib/string.krak

@@ -109,6 +109,8 @@ obj string (Object, Serializable) {
         return *this == str
     }
 
+    fun operator+(integer: int): string return *this + to_string(integer);
+
     fun operator+(str: *char): string {
         var newStr.construct(str):string
         var ret.construct(data + newStr.data):string
@@ -121,6 +123,8 @@ obj string (Object, Serializable) {
         return ret
     }
 
+    fun operator+=(integer: int) *this += to_string(integer);
+
     fun operator+=(character: char): void {
         data += character
     }

stdlib/type.krak

@@ -20,37 +20,44 @@ adt base_type {
 fun type_ptr(): *type {
     return new<type>()->construct()
 }
-fun type_ptr(base: base_type): *type {
-    return new<type>()->construct(base)
+fun type_ptr(base: base_type): *type return type_ptr(base, 0);
+fun type_ptr(base: base_type, indirection: int): *type {
+    return new<type>()->construct(base, indirection)
 }
-fun type_ptr(parameters: vector<*type>, return_type: *type): *type {
-    return new<type>()->construct(parameters, return_type)
+fun type_ptr(parameters: vector<*type>, return_type: *type): *type return type_ptr(parameters, return_type, 0);
+fun type_ptr(parameters: vector<*type>, return_type: *type, indirection: int): *type {
+    return new<type>()->construct(parameters, return_type, indirection)
 }
 
 obj type (Object) {
     var base: base_type
     var parameter_types: vector<*type>
     var return_type: *type
+    var indirection: int
     fun construct(): *type {
         base.copy_construct(&base_type::none())
         parameter_types.construct()
+        indirection = 0
         return this
     }
-    fun construct(base_in: base_type): *type {
+    fun construct(base_in: base_type, indirection_in: int): *type {
         base.copy_construct(&base_in)
         parameter_types.construct()
+        indirection = indirection_in
         return this
     }
-    fun construct(parameter_types_in: vector<*type>, return_type_in: *type): *type {
+    fun construct(parameter_types_in: vector<*type>, return_type_in: *type, indirection_in: int): *type {
         base.copy_construct(&base_type::function())
         parameter_types.copy_construct(&parameter_types)
         return_type = return_type_in
+        indirection = indirection_in
         return this
     }
     fun copy_construct(old: *type) {
         base.copy_construct(&old->base)
         parameter_types.copy_construct(&old->parameter_types)
         return_type = old->return_type
+        indirection = old->indirection
     }
     fun operator=(other: ref type) {
         destruct()
@@ -62,22 +69,22 @@ obj type (Object) {
     }
     fun to_string(): string {
         match (base) {
-            base_type::none() return string("none")
-            base_type::template() return string("template")
-            base_type::template_type() return string("template_type")
-            base_type::void_return() return string("void_return")
-            base_type::boolean() return string("boolean")
-            base_type::character() return string("character")
-            base_type::integer() return string("integer")
-            base_type::floating() return string("floating")
-            base_type::double_precision() return string("double_precision")
+            base_type::none() return string("none, indirection: ") + indirection
+            base_type::template() return string("template, indirection:") + indirection
+            base_type::template_type() return string("template_type, indirection:") + indirection
+            base_type::void_return() return string("void_return, indirection:") + indirection
+            base_type::boolean() return string("boolean, indirection:") + indirection
+            base_type::character() return string("character, indirection:") + indirection
+            base_type::integer() return string("integer, indirection:") + indirection
+            base_type::floating() return string("floating, indirection:") + indirection
+            base_type::double_precision() return string("double_precision, indirection:") + indirection
             base_type::function() {
                 var temp = string("function: (")
                 parameter_types.for_each(fun(parameter_type: *type) temp += parameter_type->to_string() + " ";)
-                return temp + ")" + return_type->to_string()
+                return temp + ")" + return_type->to_string() + "indirection: " + indirection
             }
         }
-        return string("impossible type")
+        return string("impossible type, indirection:") + indirection
     }
 }
 

tests/to_import.krak

@@ -1,11 +1,9 @@
 
-__if_comp__ __C__ simple_passthrough """
-	#include <stdio.h>
-    int main() {
-        printf("hello world! (of selfhosting! (silly selfhosting for now))\n");
-        return 0;
-    }
-"""
+fun simple_print(to_print: *char) {
+    __if_comp__ __C__ simple_passthrough(to_print::) """
+        printf("%s", to_print);
+    """
+}
 var a = 1
 var b = 2
 

tests/to_parse.krak

@@ -11,4 +11,8 @@ fun some_function(): int return 0;
 fun some_other_function(in: bool): float {
     return 0.0
 }
+fun main(): int {
+    simple_print("Hello World!")
+    return 0
+}