diff --git a/README.md b/README.md
index 2e9daa4..79647f4 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,15 @@
-DCD
-===
+#Overview
+The D Completion Daemon is an auto-complete program for the D programming language.
 
-The D Completion Daemon is an auto-complete program for the D programming language
+#Status
+* Working:
+    * Autocomplete class, struct, interface, and enum members if the class, struct, or
+    enum was declared in the current file.
+	* Autocompletion of properties of built-in types such as int, float, double, etc.
+* Not working:
+	* Everything else
 
-Or at least it will be once I write it.
-
-Be sure to run ```git submodule update --init``` after cloning this repository.
+#Setup
+Don't. This code is not ready for you to use yet. If you're going to ignore this
+warning, be sure to run ```git submodule update --init``` after cloning this
+repository to grab the MessagePack library.
diff --git a/actypes.d b/actypes.d
index 60e7028..319a386 100644
--- a/actypes.d
+++ b/actypes.d
@@ -23,26 +23,99 @@ import std.algorithm;
 import std.stdio;
 import messages;
 
+/**
+ * Autocompletion symbol
+ */
 class ACSymbol
 {
 public:
+
+	this()
+	{
+	}
+
+	this(string name)
+	{
+		this.name = name;
+	}
+
+	this(string name, CompletionKind kind)
+	{
+		this.name = name;
+		this.kind = kind;
+	}
+
+	this(string name, CompletionKind kind, ACSymbol resolvedType)
+	{
+		this.name = name;
+		this.kind = kind;
+		this.resolvedType = resolvedType;
+	}
+
+	/**
+	 * Symbols that compose this symbol, such as enum members, class variables,
+	 * methods, etc.
+	 */
     ACSymbol[] parts;
+
+	/**
+	 * Symbol's name
+	 */
     string name;
+
+	size_t location;
+
+	/**
+	 * The kind of symbol
+	 */
     CompletionKind kind;
-    Type[string] templateParameters;
+
+	/**
+	 * The return type if this is a function, or the element type if this is an
+	 * array or associative array, or the variable type if this is a variable.
+	 * This field is null if this symbol is a class
+	 */
+	Type type;
+
+	ACSymbol resolvedType;
+
+	/**
+	 * Finds symbol parts by name
+	 */
+	ACSymbol getPartByName(string name)
+	{
+		foreach (part; parts)
+		{
+			if (part.name == name)
+				return part;
+		}
+		return null;
+	}
 }
 
+/**
+ * Scope such as a block statement, struct body, etc.
+ */
 class Scope
 {
 public:
 
+	/**
+	 * Params:
+	 *     start = the index of the opening brace
+	 *     end = the index of the closing brace
+	 */
 	this(size_t start, size_t end)
 	{
 		this.start = start;
 		this.end = end;
 	}
 
-	const(ACSymbol) findSymbolInCurrentScope(size_t cursorPosition, string name) const
+	/**
+	 * Finds the scope containing the cursor position, then searches for a
+	 * symbol with the given name.
+	 */
+	ACSymbol findSymbolInCurrentScope(size_t cursorPosition, string name)
 	{
 		auto s = findCurrentScope(cursorPosition);
 		if (s is null)
@@ -55,11 +128,11 @@ public:
 	}
 
     /**
-     * @return the innermost Scope that contains the given cursor position.
+     * Returns: the innermost Scope that contains the given cursor position.
      */
-    const(Scope) findCurrentScope(size_t cursorPosition) const
+    Scope findCurrentScope(size_t cursorPosition)
     {
-        if (cursorPosition < start || cursorPosition > end)
+        if (start != size_t.max && (cursorPosition < start || cursorPosition > end))
             return null;
         foreach (sc; children)
         {
@@ -72,7 +145,11 @@ public:
         return this;
     }
 
-    const(ACSymbol) findSymbolInScope(string name) const
+	/**
+	 * Finds a symbol with the given name in this scope or one of its parent
+	 * scopes.
+	 */
+    ACSymbol findSymbolInScope(string name)
     {
 		foreach (symbol; symbols)
 		{
@@ -84,9 +161,28 @@ public:
         return null;
     }
 
-    size_t start;
-    size_t end;
+	/**
+	 * Index of the opening brace
+	 */
+    size_t start = size_t.max;
+
+	/**
+	 * Index of the closing brace
+	 */
+    size_t end = size_t.max;
+
+	/**
+	 * Symbols contained in this scope
+	 */
     ACSymbol[] symbols;
+
+	/**
+	 * The parent scope
+	 */
     Scope parent;
+
+	/**
+	 * Child scopes
+	 */
     Scope[] children;
 }
diff --git a/acvisitor.d b/acvisitor.d
index 4155e3c..f43df8f 100644
--- a/acvisitor.d
+++ b/acvisitor.d
@@ -1,20 +1,20 @@
 /**
-* This file is part of DCD, a development tool for the D programming language.
-* Copyright (C) 2013 Brian Schott
-*
-* This program is free software: you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation, either version 3 of the License, or
-* (at your option) any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+ * This file is part of DCD, a development tool for the D programming language.
+ * Copyright (C) 2013 Brian Schott
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 
 module acvisitor;
 
@@ -31,21 +31,54 @@ class AutoCompleteVisitor : ASTVisitor
 {
 	alias ASTVisitor.visit visit;
 
-	override void visit(EnumDeclaration enumDec)
+	override void visit(StructDeclaration dec)
 	{
 		auto symbol = new ACSymbol;
-		symbol.name = enumDec.name.value;
+		symbol.name = dec.name.value;
+		symbol.kind = CompletionKind.structName;
+		mixin (visitAndAdd);
+	}
+
+	override void visit(ClassDeclaration dec)
+	{
+		auto symbol = new ACSymbol;
+		symbol.name = dec.name.value;
+		symbol.kind = CompletionKind.className;
+		mixin (visitAndAdd);
+	}
+
+	override void visit(InterfaceDeclaration dec)
+	{
+		auto symbol = new ACSymbol;
+		symbol.name = dec.name.value;
+		symbol.kind = CompletionKind.interfaceName;
+		mixin (visitAndAdd);
+	}
+
+	override void visit(StructBody structBody)
+	{
+		auto s = scope_;
+		scope_ = new Scope(structBody.startLocation, structBody.endLocation);
+		scope_.parent = s;
+		structBody.accept(this);
+		scope_ = s;
+	}
+
+	override void visit(EnumDeclaration dec)
+	{
+		auto symbol = new ACSymbol;
+		symbol.name = dec.name.value;
 		symbol.kind = CompletionKind.enumName;
-		auto p = parentSymbol;
-		parentSymbol = symbol;
-		enumDec.accept(this);
-		parentSymbol = p;
-		writeln("Added ", symbol.name);
-		if (parentSymbol is null)
-			symbols ~= symbol;
-		else
-			parentSymbol.parts ~= symbol;
-		scope_.symbols ~= symbol;
+		mixin (visitAndAdd);
+	}
+
+	override void visit(FunctionDeclaration dec)
+	{
+		writeln("Found function declaration ", dec.name.value);
+		auto symbol = new ACSymbol;
+		symbol.name = dec.name.value;
+		symbol.kind = CompletionKind.functionName;
+		mixin (visitAndAdd);
 	}
 
 	override void visit(EnumMember member)
@@ -53,28 +86,47 @@ class AutoCompleteVisitor : ASTVisitor
 		auto s = new ACSymbol;
 		s.kind = CompletionKind.enumMember;
 		s.name = member.name.value;
-		writeln("Added enum member ", s.name);
+//		writeln("Added enum member ", s.name);
 		if (parentSymbol !is null)
 			parentSymbol.parts ~= s;
 	}
 
+	override void visit(VariableDeclaration dec)
+	{
+		foreach (d; dec.declarators)
+		{
+			writeln("Found variable declaration ", d.name.value);
+			auto symbol = new ACSymbol;
+			symbol.type = dec.type;
+			symbol.name = d.name.value;
+			symbol.kind = CompletionKind.variableName;
+			if (parentSymbol is null)
+				symbols ~= symbol;
+			else
+				parentSymbol.parts ~= symbol;
+			scope_.symbols ~= symbol;
+		}
+	}
+
 	override void visit(ImportDeclaration dec)
 	{
 		foreach (singleImport; dec.singleImports)
 		{
-			imports ~= flattenIdentifierChain(singleImport.identifierChain);
+			imports ~= convertChainToImportPath(singleImport.identifierChain);
 		}
 		if (dec.importBindings !is null)
 		{
-			imports ~= flattenIdentifierChain(dec.importBindings.singleImport.identifierChain);
+			imports ~= convertChainToImportPath(dec.importBindings.singleImport.identifierChain);
 		}
 	}
 
 	override void visit(BlockStatement blockStatement)
 	{
+		writeln("Processing block statement");
 		auto s = scope_;
 		scope_ = new Scope(blockStatement.startLocation,
 			blockStatement.endLocation);
+		scope_.parent = s;
 		blockStatement.accept(this);
 		s.children ~= scope_;
 		scope_ = s;
@@ -86,7 +138,7 @@ class AutoCompleteVisitor : ASTVisitor
 		mod.accept(this);
 	}
 
-	private static string flattenIdentifierChain(IdentifierChain chain)
+	private static string convertChainToImportPath(IdentifierChain chain)
 	{
 		string rVal;
 		bool first = true;
@@ -104,44 +156,28 @@ class AutoCompleteVisitor : ASTVisitor
 	ACSymbol[] symbols;
 	ACSymbol parentSymbol;
 	Scope scope_;
-	string[] imports;
+	string[] imports = ["object"];
+
+private:
+	static enum string visitAndAdd = q{
+		auto p = parentSymbol;
+		parentSymbol = symbol;
+		dec.accept(this);
+		parentSymbol = p;
+		if (parentSymbol is null)
+			symbols ~= symbol;
+		else
+			parentSymbol.parts ~= symbol;
+		scope_.symbols ~= symbol;
+	};
 }
 
 void doesNothing(string, int, int, string) {}
 
 AutoCompleteVisitor processModule(const(Token)[] tokens)
 {
-	Module mod = parseModule(tokens, "", &doesNothing);
+	Module mod = parseModule(tokens, "", null/*&doesNothing*/);
 	auto visitor = new AutoCompleteVisitor;
 	visitor.visit(mod);
 	return visitor;
 }
-
-string[] getImportedFiles(string[] imports, string[] importPaths)
-{
-	string[] importedFiles;
-	foreach (imp; imports)
-	{
-		bool found = false;
-		foreach (path; importPaths)
-		{
-			string filePath = path ~ "/" ~ imp;
-			if (filePath.exists())
-			{
-				importedFiles ~= filePath;
-				found = true;
-				break;
-			}
-			filePath ~= "i"; // check for x.di if x.d isn't found
-			if (filePath.exists())
-			{
-				importedFiles ~= filePath;
-				found = true;
-				break;
-			}
-		}
-		if (!found)
-			writeln("Could not locate ", imp);
-	}
-	return importedFiles;
-}
diff --git a/autocomplete.d b/autocomplete.d
index b23d49c..fe44768 100644
--- a/autocomplete.d
+++ b/autocomplete.d
@@ -90,7 +90,12 @@ AutocompleteResponse complete(AutocompleteRequest request, string[] importPaths)
     {
         switch (beforeTokens[$ - 2].type)
         {
-        case TokenType.int_:
+        case TokenType.stringLiteral:
+        case TokenType.wstringLiteral:
+        case TokenType.dstringLiteral:
+            // TODO
+            break;
+		case TokenType.int_:
         case TokenType.uint_:
         case TokenType.long_:
         case TokenType.ulong_:
@@ -104,13 +109,6 @@ AutocompleteResponse complete(AutocompleteRequest request, string[] importPaths)
         case TokenType.ushort_:
         case TokenType.cent_:
         case TokenType.ucent_:
-            response.completionType = CompletionType.identifiers;
-            for (size_t i = 0; i < integerProperties.length; i++)
-            {
-                response.completions ~= integerProperties[i];
-                response.completionKinds ~= CompletionKind.keyword;
-            }
-            break;
         case TokenType.float_:
         case TokenType.ifloat_:
         case TokenType.cfloat_:
@@ -120,27 +118,11 @@ AutocompleteResponse complete(AutocompleteRequest request, string[] importPaths)
         case TokenType.real_:
         case TokenType.ireal_:
         case TokenType.creal_:
-            response.completionType = CompletionType.identifiers;
-            for (size_t i = 0; i < floatProperties.length; i++)
-            {
-                response.completions ~= floatProperties[i];
-                response.completionKinds ~= CompletionKind.keyword;
-            }
-            break;
-        case TokenType.stringLiteral:
-        case TokenType.wstringLiteral:
-        case TokenType.dstringLiteral:
-            response.completionType = CompletionType.identifiers;
-            for (size_t i = 0; i < arrayProperties.length; i++)
-            {
-                response.completions ~= arrayProperties[i];
-                response.completionKinds ~= CompletionKind.keyword;
-            }
-            break;
         case TokenType.identifier:
         case TokenType.rParen:
         case TokenType.rBracket:
 			auto visitor = processModule(tokenArray);
+			visitor.scope_.symbols ~= builtinSymbols;
             auto expression = getExpression(beforeTokens[0..$]);
 			response.setCompletions(visitor, expression, request.cursorPosition);
             break;
@@ -160,23 +142,116 @@ AutocompleteResponse complete(AutocompleteRequest request, string[] importPaths)
 }
 
 void setCompletions(T)(ref AutocompleteResponse response,
-	ref const AutoCompleteVisitor visitor, T tokens, size_t cursorPosition)
+	AutoCompleteVisitor visitor, T tokens, size_t cursorPosition)
 {
 	// TODO: Completely hacked together.
-	if (tokens[0] != TokenType.identifier) return;
-	writeln("Getting completions for ", tokens[0].value);
-	auto symbol = visitor.scope_.findSymbolInCurrentScope(cursorPosition, tokens[0].value);
+	writeln("Getting completions for ", map!"a.value"(tokens));
+	ACSymbol symbol = visitor.scope_.findSymbolInCurrentScope(cursorPosition, tokens[0].value);
 	if (symbol is null)
+	{
+		writeln("Could not find declaration of ", tokens[0].value);
 		return;
+	}
+
+	writeln(symbol.kind);
+	if (symbol.kind == CompletionKind.variableName
+		|| symbol.kind == CompletionKind.memberVariableName)
+	{
+		symbol = resolveType(cursorPosition, symbol, visitor.scope_);
+	}
+	loop: for (size_t i = 1; i < tokens.length; i++)
+	{
+		TokenType open;
+		TokenType close;
+		with (TokenType) switch (tokens[i].type)
+		{
+		case TokenType.int_:
+        case TokenType.uint_:
+        case TokenType.long_:
+        case TokenType.ulong_:
+        case TokenType.char_:
+        case TokenType.wchar_:
+        case TokenType.dchar_:
+        case TokenType.bool_:
+        case TokenType.byte_:
+        case TokenType.ubyte_:
+        case TokenType.short_:
+        case TokenType.ushort_:
+        case TokenType.cent_:
+        case TokenType.ucent_:
+        case TokenType.float_:
+        case TokenType.ifloat_:
+        case TokenType.cfloat_:
+        case TokenType.idouble_:
+        case TokenType.cdouble_:
+        case TokenType.double_:
+        case TokenType.real_:
+        case TokenType.ireal_:
+        case TokenType.creal_:
+		case this_:
+			symbol = symbol.getPartByName(getTokenValue(tokens[i].type));
+			if (symbol is null)
+				break loop;
+			break;
+		case identifier:
+			symbol = symbol.getPartByName(tokens[i].value);
+			if (symbol is null)
+				break loop;
+			break;
+		case lParen:
+			open = TokenType.lParen;
+			close = TokenType.rParen;
+			goto skip;
+		case lBracket:
+			open = TokenType.lBracket;
+			close = TokenType.rBracket;
+		skip:
+			i++;
+			for (int depth = 1; depth > 0 && i < tokens.length; i++)
+			{
+				if (tokens[i].type == open)
+					depth++;
+				else if (tokens[i].type == close)
+				{
+					depth--;
+					if (depth == 0) break;
+				}
+			}
+			break;
+		case dot:
+		default:
+			break;
+		}
+	}
+
 	foreach (s; symbol.parts)
 	{
-		writeln("Adding ", s.name, " to the completion list");
+		//writeln("Adding ", s.name, " to the completion list");
 		response.completionKinds ~= s.kind;
 		response.completions ~= s.name;
 	}
 	response.completionType = CompletionType.identifiers;
 }
 
+ACSymbol resolveType(size_t cursorPosition, ACSymbol symbol, Scope scope_)
+{
+	writeln("Resolving type of ", symbol.name);
+	Type type = symbol.type;
+
+	// Simple case
+	if (type.type2.builtinType != TokenType.invalid && type.typeSuffixes.length == 0)
+	{
+		return scope_.findSymbolInCurrentScope(cursorPosition, getTokenValue(type.type2.builtinType));
+	}
+	if (type.type2.symbol !is null && type.typeSuffixes.length == 0)
+	{
+		return scope_.findSymbolInCurrentScope(cursorPosition,
+			type.type2.symbol.identifierOrTemplateChain.identifiersOrTemplateInstances[0].identifier.value);
+	}
+
+	return null;
+}
+
 T getExpression(T)(T beforeTokens)
 {
 	size_t i = beforeTokens.length - 1;
@@ -187,6 +262,30 @@ T getExpression(T)(T beforeTokens)
 	{
 		with (TokenType) switch (beforeTokens[i].type)
 		{
+		case TokenType.int_:
+        case TokenType.uint_:
+        case TokenType.long_:
+        case TokenType.ulong_:
+        case TokenType.char_:
+        case TokenType.wchar_:
+        case TokenType.dchar_:
+        case TokenType.bool_:
+        case TokenType.byte_:
+        case TokenType.ubyte_:
+        case TokenType.short_:
+        case TokenType.ushort_:
+        case TokenType.cent_:
+        case TokenType.ucent_:
+        case TokenType.float_:
+        case TokenType.ifloat_:
+        case TokenType.cfloat_:
+        case TokenType.idouble_:
+        case TokenType.cdouble_:
+        case TokenType.double_:
+        case TokenType.real_:
+        case TokenType.ireal_:
+        case TokenType.creal_:
+		case this_:
 		case identifier:
 			if (hasSpecialPrefix)
 			{
@@ -257,3 +356,118 @@ unittest
 {
     assert("ClNa".createCamelCaseRegex() == "Cl.*Na.*");
 }
+
+/**
+ * Initializes builtin types and the various properties of builtin types
+ */
+static this()
+{
+	auto bool_ = new ACSymbol("bool", CompletionKind.keyword);
+	auto int_ = new ACSymbol("int", CompletionKind.keyword);
+	auto long_ = new ACSymbol("long", CompletionKind.keyword);
+    auto byte_ = new ACSymbol("byte", CompletionKind.keyword);
+    auto dchar_ = new ACSymbol("dchar", CompletionKind.keyword);
+    auto short_ = new ACSymbol("short", CompletionKind.keyword);
+    auto ubyte_ = new ACSymbol("ubyte", CompletionKind.keyword);
+    auto uint_ = new ACSymbol("uint", CompletionKind.keyword);
+    auto ulong_ = new ACSymbol("ulong", CompletionKind.keyword);
+    auto ushort_ = new ACSymbol("ushort", CompletionKind.keyword);
+	auto wchar_ = new ACSymbol("wchar", CompletionKind.keyword);
+
+	auto alignof_ = new ACSymbol("alignof", CompletionKind.keyword, ulong_);
+	auto mangleof_ = new ACSymbol("mangleof", CompletionKind.keyword);
+	auto sizeof_ = new ACSymbol("sizeof", CompletionKind.keyword, ulong_);
+	auto stringof_ = new ACSymbol("stringof", CompletionKind.keyword);
+
+	arraySymbols ~= alignof_;
+	arraySymbols ~= new ACSymbol("dup", CompletionKind.keyword);
+	arraySymbols ~= new ACSymbol("idup", CompletionKind.keyword);
+	arraySymbols ~= new ACSymbol("init", CompletionKind.keyword);
+	arraySymbols ~= new ACSymbol("length", CompletionKind.keyword, ulong_);
+	arraySymbols ~= mangleof_;
+	arraySymbols ~= new ACSymbol("ptr", CompletionKind.keyword);
+	arraySymbols ~= new ACSymbol("reverse", CompletionKind.keyword);
+	arraySymbols ~= sizeof_;
+	arraySymbols ~= new ACSymbol("sort", CompletionKind.keyword);
+	arraySymbols ~= stringof_;
+
+	assocArraySymbols ~= alignof_;
+	assocArraySymbols ~= new ACSymbol("byKey", CompletionKind.keyword);
+	assocArraySymbols ~= new ACSymbol("byValue", CompletionKind.keyword);
+	assocArraySymbols ~= new ACSymbol("dup", CompletionKind.keyword);
+	assocArraySymbols ~= new ACSymbol("get", CompletionKind.keyword);
+	assocArraySymbols ~= new ACSymbol("init", CompletionKind.keyword);
+	assocArraySymbols ~= new ACSymbol("keys", CompletionKind.keyword);
+	assocArraySymbols ~= new ACSymbol("length", CompletionKind.keyword, ulong_);
+	assocArraySymbols ~= mangleof_;
+	assocArraySymbols ~= new ACSymbol("rehash", CompletionKind.keyword);
+	arraySymbols ~= sizeof_;
+	arraySymbols ~= stringof_;
+	assocArraySymbols ~= new ACSymbol("values", CompletionKind.keyword);
+
+	foreach (s; [bool_, int_, long_, byte_, dchar_, short_, ubyte_, uint_,
+		ulong_, ushort_, wchar_])
+	{
+		s.parts ~= new ACSymbol("init", CompletionKind.keyword, s);
+		s.parts ~= new ACSymbol("min", CompletionKind.keyword, s);
+		s.parts ~= new ACSymbol("max", CompletionKind.keyword, s);
+		s.parts ~= alignof_;
+		s.parts ~= sizeof_;
+		s.parts ~= stringof_;
+		s.parts ~= mangleof_;
+	}
+
+	auto cdouble_ = new ACSymbol("cdouble", CompletionKind.keyword);
+    auto cent_ = new ACSymbol("cent", CompletionKind.keyword);
+    auto cfloat_ = new ACSymbol("cfloat", CompletionKind.keyword);
+    auto char_ = new ACSymbol("char", CompletionKind.keyword);
+    auto creal_ = new ACSymbol("creal", CompletionKind.keyword);
+    auto double_ = new ACSymbol("double", CompletionKind.keyword);
+    auto float_ = new ACSymbol("float", CompletionKind.keyword);
+    auto idouble_ = new ACSymbol("idouble", CompletionKind.keyword);
+    auto ifloat_ = new ACSymbol("ifloat", CompletionKind.keyword);
+    auto ireal_ = new ACSymbol("ireal", CompletionKind.keyword);
+    auto real_ = new ACSymbol("real", CompletionKind.keyword);
+    auto ucent_ = new ACSymbol("ucent", CompletionKind.keyword);
+
+	foreach (s; [cdouble_, cent_, cfloat_, char_, creal_, double_, float_,
+		idouble_, ifloat_, ireal_, real_, ucent_])
+	{
+		s.parts ~= alignof_;
+		s.parts ~= new ACSymbol("dig", CompletionKind.keyword, s);
+		s.parts ~= new ACSymbol("episilon", CompletionKind.keyword, s);
+		s.parts ~= new ACSymbol("infinity", CompletionKind.keyword, s);
+		s.parts ~= new ACSymbol("init", CompletionKind.keyword, s);
+		s.parts ~= mangleof_;
+		s.parts ~= new ACSymbol("mant_dig", CompletionKind.keyword, int_);
+		s.parts ~= new ACSymbol("max", CompletionKind.keyword, s);
+		s.parts ~= new ACSymbol("max_10_exp", CompletionKind.keyword, int_);
+		s.parts ~= new ACSymbol("max_exp", CompletionKind.keyword, int_);
+		s.parts ~= new ACSymbol("min", CompletionKind.keyword, s);
+		s.parts ~= new ACSymbol("min_exp", CompletionKind.keyword, int_);
+		s.parts ~= new ACSymbol("min_10_exp", CompletionKind.keyword, int_);
+		s.parts ~= new ACSymbol("min_normal", CompletionKind.keyword, s);
+		s.parts ~= new ACSymbol("nan", CompletionKind.keyword, s);
+		s.parts ~= sizeof_;
+		s.parts ~= stringof_;
+	}
+
+	ireal_.parts ~= new ACSymbol("im", CompletionKind.keyword, real_);
+	ifloat_.parts ~= new ACSymbol("im", CompletionKind.keyword, float_);
+	idouble_.parts ~= new ACSymbol("im", CompletionKind.keyword, double_);
+	ireal_.parts ~= new ACSymbol("re", CompletionKind.keyword, real_);
+	ifloat_.parts ~= new ACSymbol("re", CompletionKind.keyword, float_);
+	idouble_.parts ~= new ACSymbol("re", CompletionKind.keyword, double_);
+
+	auto void_ = new ACSymbol("void", CompletionKind.keyword);
+
+	builtinSymbols = [bool_, int_, long_, byte_, dchar_, short_, ubyte_, uint_,
+		ulong_, ushort_, wchar_, cdouble_, cent_, cfloat_, char_, creal_, double_,
+		float_, idouble_, ifloat_, ireal_, real_, ucent_, void_];
+}
+
+ACSymbol[] builtinSymbols;
+ACSymbol[] arraySymbols;
+ACSymbol[] assocArraySymbols;
+ACSymbol[] classSymbols;
+ACSymbol[] structSymbols;
diff --git a/constants.d b/constants.d
index ac9fb24..d562754 100644
--- a/constants.d
+++ b/constants.d
@@ -173,54 +173,6 @@ immutable string[] versions = [
     "X86_64"
 ];
 
-/**
- * Properties of all types
- */
-immutable string[] allProperties = [
-    "alignof",
-    "init",
-    "mangleof",
-    "sizeof",
-    "stringof"
-];
-
-/**
- * Properties of integer types
- */
-immutable string[] integerProperties = [
-    "alignof",
-    "init",
-    "mangleof",
-    "max",
-    "min",
-    "sizeof",
-    "stringof"
-];
-
-/**
- * Properties of floating point types
- */
-immutable string[] floatProperties = [
-    "alignof",
-    "dig",
-    "epsilon",
-    "im",
-    "infinity",
-    "init",
-    "mangleof",
-    "mant_dig",
-    "max",
-    "max_10_exp",
-    "max_exp",
-    "min_10_exp",
-    "min_exp",
-    "min_normal",
-    "nan",
-    "re",
-    "sizeof",
-    "stringof"
-];
-
 /**
  * Properties of class types
  */
@@ -247,39 +199,3 @@ immutable string[] structProperties = [
     "sizeof",
     "stringof"
 ];
-
-/**
- * Properties of arrays
- */
-immutable string[] arrayProperties = [
-    "alignof",
-    "dup",
-    "idup",
-    "init",
-    "length",
-    "mangleof",
-    "ptr",
-    "reverse",
-    "sizeof",
-    "sort",
-    "stringof"
-];
-
-/**
- * Properties of associative arrays
- */
-immutable string[] associativeArrayProperties = [
-    "alignof",
-    "byKey",
-    "byValue",
-    "dup",
-    "get",
-    "init",
-    "keys",
-    "length",
-    "mangleof",
-    "rehash",
-    "sizeof",
-    "stringof",
-    "values"
-];
diff --git a/messages.d b/messages.d
index ee5415c..7b94847 100644
--- a/messages.d
+++ b/messages.d
@@ -32,6 +32,9 @@ enum CompletionKind : char
     /// structure names
     structName = 's',
 
+	/// union name
+	unionName = 'u',
+
     /// variable name
     variableName = 'v',
 
@@ -54,7 +57,13 @@ enum CompletionKind : char
     packageName = 'P',
 
     // module name
-    moduleName = 'M'
+    moduleName = 'M',
+
+	// array
+	array = 'a',
+
+	// associative array
+	assocArray = 'A',
 }
 
 /**
@@ -74,6 +83,13 @@ enum CompletionType : string
     calltips = "calltips"
 }
 
+enum RequestKind
+{
+	autocomplete,
+	clearCache,
+	addImport
+}
+
 /**
  * Autocompletion request message
  */
@@ -84,6 +100,11 @@ struct AutocompleteRequest
      */
     string fileName;
 
+	/**
+	 * Command coming from the client
+	 */
+	RequestKind kind;
+
     /**
      * Paths to be searched for import files
      */
diff --git a/modulecache.d b/modulecache.d
index 68d5fea..fa6003c 100644
--- a/modulecache.d
+++ b/modulecache.d
@@ -21,23 +21,97 @@ module modulecache;
 import std.file;
 import std.datetime;
 
+import acvisitor;
+
+struct CacheEntry
+{
+	ACSymbol[] symbols;
+	SysTime modificationTime;
+}
+
+/**
+ * Caches pre-parsed module information.
+ */
 struct ModuleCache
 {
     @disable this();
 
+	/**
+	 * Clears the completion cache
+	 */
+	void clear()
+	{
+		cache = [];
+	}
+
+	/**
+	 * Adds the given path to the list of directories checked for imports
+	 */
+	void addImportPath(string path)
+	{
+		importPaths ~= path;
+	}
+
+	/**
+	 * Params:
+	 *     moduleName = the name of the module in "a.b.c" form
+	 * Returns:
+	 *     The symbols defined in the given module
+	 */
+	ACSymbol[] getSymbolsInModule(string moduleName)
+	{
+		string location = resolveImportLoctation(moduleName);
+		if (!needsReparsing(location))
+			return;
+
+		Module mod = parseModule(tokens, location, &doesNothing);
+		auto visitor = new AutocompleteVisitor;
+		visitor.visit(mod);
+		cache[location].mod = visitor.symbols;
+	}
+
+	/**
+	 * Params:
+	 *     moduleName the name of the module being imported, in "a.b.c" style
+	 * Returns:
+	 *     The absolute path to the file that contains the module, or null if
+	 *     not found.
+	 */
+	string resolveImportLoctation(string moduleName)
+	{
+		foreach (path; importPaths)
+		{
+			string filePath = path ~ "/" ~ imp;
+			if (filePath.exists())
+				return filePath;
+			filePath ~= "i"; // check for x.di if x.d isn't found
+			if (filePath.exists())
+				return filePath;
+		}
+		return null;
+	}
+
+private:
+
+	/**
+	 * Params:
+	 *     mod = the path to the module
+	 * Returns:
+	 *     true  if the module needs to be reparsed, false otherwise
+	 */
     bool needsReparsing(string mod)
     {
-        if (!exists(mod))
-            return false;
-        if (mod !in modificationTimes)
+        if (!exists(mod) || mod !in cache)
             return true;
         SysTime access;
         SysTime modification;
         getTimes(mod, access, modification);
-        if (modificationTimes[mod] != modification)
-            return true;
-        return false;
+        return cache[mod].modificationTime != modification;
     }
 
-    SysTime[string] modificationTimes;
+	// Mapping of file paths to their cached symbols.
+    CacheEntry[string] cache;
+
+	// Listing of paths to check for imports
+	string[] importPaths;
 }
diff --git a/server.d b/server.d
index 65c5de1..9447356 100644
--- a/server.d
+++ b/server.d
@@ -79,10 +79,19 @@ int main(string[] args)
             writeln("Socket recieve failed");
             break;
         }
-        else
+
+		AutocompleteRequest request;
+		msgpack.unpack(buffer[8 .. bytesReceived], request);
+		if (request.kind == RequestKind.addImport)
+		{
+
+		}
+        else if (request.kind == RequestKind.clearCache)
+		{
+
+		}
+		else
         {
-            AutocompleteRequest request;
-            msgpack.unpack(buffer[8 .. bytesReceived], request);
             AutocompleteResponse response = complete(request, importPaths);
             ubyte[] responseBytes = msgpack.pack(response);
             assert(s.send(responseBytes) == responseBytes.length);