Added in the beginnings of pass three which can parse and emit statements and code blocks

stdlib/ast_nodes.krak

@@ -258,17 +258,20 @@ obj function (Object) {
     var name: string
     var type: *type
     var parameters: vector<*ast_node>
+    var body_statement: *ast_node
     var scope: map<string, vector<*ast_node>>
     fun construct(name_in: string, type_in: *type, parameters_in: vector<*ast_node>): *function  {
         name.copy_construct(&name_in)
         parameters.copy_construct(&parameters_in)
         scope.construct()
         type = type_in
+        body_statement = null<ast_node>()
         return this
     }
     fun copy_construct(old: *function) {
         name.copy_construct(&old->name)
         type = old->type
+        body_statement = old->body_statement
         parameters.copy_construct(&old->parameters)
         scope.copy_construct(&old->scope)
     }
@@ -282,7 +285,7 @@ obj function (Object) {
         copy_construct(&other)
     }
     fun operator==(other: ref function): bool {
-        return name == name && type == other.type && parameters == other.parameters
+        return name == name && type == other.type && parameters == other.parameters && body_statement == other.body_statement
     }
 }
 fun ast_code_block_ptr(): *ast_node {
@@ -337,6 +340,7 @@ obj statement (Object) {
     var scope: map<string, vector<*ast_node>>
     var child: *ast_node
     fun construct(): *statement  {
+        child = null<ast_node>()
         scope.construct()
         return this
     }
@@ -849,7 +853,7 @@ fun get_ast_children(node: *ast_node): vector<*ast_node> {
         ast_node::identifier(backing) return vector<*ast_node>()
         ast_node::type_def(backing) return vector<*ast_node>()
         ast_node::adt_def(backing) return vector<*ast_node>()
-        ast_node::function(backing) return vector<*ast_node>()
+        ast_node::function(backing) return backing.parameters + backing.body_statement
         ast_node::code_block(backing) return backing.children
         ast_node::statement(backing) return vector<*ast_node>(backing.child)
         ast_node::if_statement(backing) return vector<*ast_node>()

stdlib/ast_transformation.krak

@@ -19,16 +19,20 @@ import type:*
 		/*NodeTree<ASTData>* topScope; //maintained for templates that need to add themselves to the top scope no matter where they are instantiated*/
         /*int lambdaID = 0;*/
 obj ast_transformation (Object) {
+    var ast_to_syntax: map<*ast_node, *tree<symbol>>
     fun construct(): *ast_transformation {
+        ast_to_syntax.construct()
         return this
     }
     fun copy_construct(old: *ast_transformation) {
+        ast_to_syntax.copy_construct(&old->ast_to_syntax)
     }
     fun operator=(old: ref ast_transformation) {
         destruct()
         copy_construct(&old)
     }
     fun destruct() {
+        ast_to_syntax.destruct()
     }
     // first pass defines all type_defs (objects and aliases), ADTs, and top-level if-comps/passthroughs
     fun first_pass(file_name: string, parse_tree: *tree<symbol>, importer: *importer): *ast_node {
@@ -39,6 +43,7 @@ obj ast_transformation (Object) {
                 var name = concat_symbol_tree(get_node("identifier", child))
                 var type_def_node = ast_type_def_ptr(name)
                 translation_unit->translation_unit.children.add(type_def_node)
+                ast_to_syntax.set(type_def_node, child)
                 add_to_scope("~enclosing_scope", translation_unit, type_def_node)
                 add_to_scope(name, type_def_node, translation_unit)
                 // set up type - self-referential, traits, template, etc
@@ -46,11 +51,13 @@ obj ast_transformation (Object) {
                 var name = concat_symbol_tree(get_node("identifier", child))
                 var adt_def_node = ast_adt_def_ptr(name)
                 translation_unit->translation_unit.children.add(adt_def_node)
+                ast_to_syntax.set(adt_def_node, child)
                 add_to_scope("~enclosing_scope", translation_unit, adt_def_node)
                 add_to_scope(name, adt_def_node, translation_unit)
             } else if (child->data.name == "if_comp") {
                 var if_comp_node = transform_if_comp(child, translation_unit)
                 translation_unit->translation_unit.children.add(if_comp_node)
+                ast_to_syntax.set(if_comp_node, child)
             }
         })
 
@@ -62,6 +69,7 @@ obj ast_transformation (Object) {
                 var name = concat_symbol_tree(import_identifier_children[0])
                 var import_node = ast_import_ptr(name)
                 translation_unit->translation_unit.children.add(import_node)
+                ast_to_syntax.set(import_node, child)
                 add_to_scope("~enclosing_scope", translation_unit, import_node)
                 var outside_translation_unit = importer->import_first_pass(name + ".krak")
                 add_to_scope(name, outside_translation_unit, translation_unit)
@@ -80,7 +88,9 @@ obj ast_transformation (Object) {
             } else if (child->data.name == "adt_def") {
                 // set up options and all the generated functions (operator==, operator!=, copy_construct, operator=, destruct)
             } else if (child->data.name == "function") {
-                translation_unit->translation_unit.children.add(second_pass_function(child, translation_unit, map<string, *type>()))
+                var function_node = second_pass_function(child, translation_unit, map<string, *type>())
+                translation_unit->translation_unit.children.add(function_node)
+                ast_to_syntax.set(function_node, child)
             } else if (child->data.name == "declaration_statement") {
                 // second pass declaration can actually just call a normal transform (but maybe should be it's own method to do so because typedef has to do it too?)...
             }
@@ -109,9 +119,22 @@ obj ast_transformation (Object) {
         parameters.for_each(fun(parameter: *ast_node) add_to_scope(parameter->identifier.name, parameter, function_node);)
         return function_node
     }
+    // The third pass finishes up by doing all function bodies (top level and methods in objects)
     fun third_pass(parse_tree: *tree<symbol>, translation_unit: *ast_node) {
         println(string("Third Pass for ") + translation_unit->translation_unit.name)
+        translation_unit->translation_unit.children.for_each(fun(node: *ast_node) {
+            match(*node) {
+                ast_node::type_def(backing) do_nothing() // actually go through and do methods inside
+                ast_node::function(backing) {
+                    // make sure not a template
+                    // huh, I guess I can't actually assign to the backing.
+                    // This is actually a little bit of a problem, maybe these should be pointers also. All the pointers!
+                    node->function.body_statement = transform_statement(get_node("statement", ast_to_syntax[node]), translation_unit)
+                }
+            }
+        })
     }
+    // The fourth pass generates the class templates that have not yet been generated in a "chaotic iteration" loop
     fun fourth_pass(parse_tree: *tree<symbol>, translation_unit: *ast_node) {
         println(string("Fourth Pass for ") + translation_unit->translation_unit.name)
     }

stdlib/c_generator.krak

@@ -62,7 +62,7 @@ obj c_generator (Object) {
                         function_prototypes += type_to_c(backing.type->return_type) + " " + backing.name + "(" + parameter_types + ");\n"
 
                         // add parameters to destructor thingy (for returns)? Or should that be a different pass?
-                        function_definitions += type_to_c(backing.type->return_type) + " " + backing.name + "(" + parameters + ") { " + " /* body here */ "
+                        function_definitions += type_to_c(backing.type->return_type) + " " + backing.name + "(" + parameters + ") {\n" + generate_statement(backing.body_statement)
                         // emit parameter destructors?
                         function_definitions += "}\n"
                     }
@@ -76,11 +76,22 @@ obj c_generator (Object) {
         // deal with all the passthrough params
         return node->simple_passthrough.passthrough_str
     }
+    fun generate_statement(node: *ast_node): string return generate(node->statement.child) + ";\n";
+    fun generate_code_block(node: *ast_node): string {
+        var to_ret = string("{\n")
+        node->code_block.children.for_each(fun(child: *ast_node) to_ret += generate(child);)
+        return to_ret + "}\n"
+    }
+
     // for now, anyway
     fun generate(node: *ast_node): string {
+        if (!node) return string("/*NULL*/")
         match (*node) {
             ast_node::simple_passthrough(backing) return generate_simple_passthrough(node)
+            ast_node::statement(backing) return generate_statement(node)
+            ast_node::code_block(backing) return generate_code_block(node)
         }
+        return string("/* COULD NOT GENERATE */")
     }
     fun type_to_c(type: *type): string {
         match (type->base) {

stdlib/util.krak

@@ -2,6 +2,9 @@ import mem
 import vector
 import serialize
 
+// maybe my favorite function
+fun do_nothing() {}
+
 fun max<T>(a: T, b: T): T {
     if (a > b)
         return a;

stdlib/vector.krak

@@ -71,13 +71,19 @@ obj vector<T> (Object, Serializable) {
     }
 
     fun operator+(other:vector<T>):vector<T> {
-        var newVec.construct():vector<T>
+        // lets be at least a little bit smarter by copy_constructing our copy.
-        for (var i = 0; i < size; i++;)
+        // We could get a lot better than this by initially creating enough space
-            newVec.addEnd(get(i))
+        // for both and copy_constructing all of them, but this is just a quick fix
+        var newVec.copy_construct(this):vector<T>
         for (var i = 0; i < other.size; i++;)
             newVec.addEnd(other.get(i))
         return newVec
     }
+    fun operator+(other: T):vector<T> {
+        var newVec.copy_construct(this):vector<T>
+        newVec.addEnd(other)
+        return newVec
+    }
 
     fun operator+=(other: T):void {
         addEnd(other)

tests/to_parse.krak

@@ -7,10 +7,8 @@ obj Something (ObjectTrait) {
     }
 }
 
-fun some_function(): float {
+fun some_function(): int return 0;
-    return 0
+fun some_other_function(in: bool): float {
-}
+    return 0.0
-fun some_other_function(in: bool): int {
-    return 0
 }