make function symbols store function parameters, needed for UFCS. (#182)

src/dsymbol/conversion/first.d

@@ -62,11 +62,9 @@ final class FirstPass : ASTVisitor
 	 *     symbolFile = path to the file being converted
 	 *     symbolAllocator = allocator used for the auto-complete symbols
 	 *     semanticAllocator = allocator used for semantic symbols
-	 *     includeParameterSymbols = include parameter symbols as children of
-	 *         function decalarations and constructors
 	 */
 	this(const Module mod, istring symbolFile, RCIAllocator symbolAllocator,
-         RCIAllocator semanticAllocator, bool includeParameterSymbols,
+         RCIAllocator semanticAllocator,
          ModuleCache* cache, CacheEntry* entry = null)
 	in
 	{
@@ -81,7 +79,6 @@ final class FirstPass : ASTVisitor
 		this.symbolFile = symbolFile;
 		this.symbolAllocator = symbolAllocator;
 		this.semanticAllocator = semanticAllocator;
-		this.includeParameterSymbols = includeParameterSymbols;
 		this.entry = entry;
 		this.cache = cache;
 	}
@@ -158,11 +155,8 @@ final class FirstPass : ASTVisitor
 		}
 		else
 		{
-			immutable ips = includeParameterSymbols;
-			includeParameterSymbols = false;
 			processParameters(currentSymbol, dec.returnType,
 					currentSymbol.acSymbol.name, dec.parameters, dec.templateParameters);
-			includeParameterSymbols = ips;
 		}
 	}
 
@@ -970,8 +964,9 @@ private:
 		const TemplateParameters templateParameters)
 	{
 		processTemplateParameters(symbol, templateParameters);
-		if (includeParameterSymbols && parameters !is null)
+		if (parameters !is null)
 		{
+			currentSymbol.acSymbol.functionParameters.reserve(parameters.parameters.length);
 			foreach (const Parameter p; parameters.parameters)
 			{
 				SemanticSymbol* parameter = allocateSemanticSymbol(
@@ -981,6 +976,9 @@ private:
 					addTypeToLookups(parameter.typeLookups, p.type);
 				parameter.parent = currentSymbol;
 				currentSymbol.acSymbol.argNames.insert(parameter.acSymbol.name);
+
+				currentSymbol.acSymbol.functionParameters ~= parameter.acSymbol;
+
 				currentSymbol.addChild(parameter, true);
 				currentScope.addSymbol(parameter.acSymbol, false);
 			}
@@ -1008,7 +1006,7 @@ private:
 
 	void processTemplateParameters(SemanticSymbol* symbol, const TemplateParameters templateParameters)
 	{
-		if (includeParameterSymbols && templateParameters !is null
+		if (templateParameters !is null
 				&& templateParameters.templateParameterList !is null)
 		{
 			foreach (const TemplateParameter p; templateParameters.templateParameterList.items)
@@ -1217,7 +1215,6 @@ private:
 
 	ModuleCache* cache;
 
-	bool includeParameterSymbols;
 	bool skipBaseClassesOfNewAnon;
 
 	ubyte foreachTypeIndexOfInterest;

src/dsymbol/conversion/package.d

@@ -43,7 +43,7 @@ ScopeSymbolPair generateAutocompleteTrees(const(Token)[] tokens,
 		parseAllocator, cursorPosition);
 
 	scope first = new FirstPass(m, internString("stdin"), symbolAllocator,
-		symbolAllocator, true, &cache);
+		symbolAllocator, &cache);
 	first.run();
 
 	secondPass(first.rootSymbol, first.moduleScope, cache);

src/dsymbol/modulecache.d

@@ -203,7 +203,7 @@ struct ModuleCache
 
 		assert (!symbolAllocator.isNull);
 		scope first = new FirstPass(m, cachedLocation, symbolAllocator,
-									semanticAllocator.allocatorObject, false, &this, newEntry);
+									semanticAllocator.allocatorObject, &this, newEntry);
 		first.run();
 
 		secondPass(first.rootSymbol, first.moduleScope, this);

src/dsymbol/symbol.d

@@ -375,10 +375,16 @@ struct DSymbol
 	/**
 	 * Names of function arguments
 	 */
+	// TODO: remove since we have function arguments
 	UnrolledList!(istring) argNames;
 
 	private uint _location;
 
+	/**
+	 * Function parameter symbols
+	 */
+	DSymbol*[] functionParameters;
+
 	/**
 	 * DSymbol location
 	 */

src/dsymbol/tests.d

@@ -538,7 +538,7 @@ ScopeSymbolPair generateAutocompleteTrees(string source, string filename, ref Mo
 	Module m = parseModule(tokens, filename, &rba);
 
 	scope first = new FirstPass(m, internString(filename),
-			theAllocator, theAllocator, true, &cache);
+			theAllocator, theAllocator, &cache);
 	first.run();
 
 	secondPass(first.rootSymbol, first.moduleScope, cache);