AST no templates

fish.xcodeproj/project.pbxproj

@@ -152,6 +152,7 @@
 		D0F019FD15A977CA0034B3B1 /* config.fish in CopyFiles */ = {isa = PBXBuildFile; fileRef = D0C4FD9415A7D7EE00212EF1 /* config.fish */; };
 		D0F01A0315A978910034B3B1 /* osx_fish_launcher.m in Sources */ = {isa = PBXBuildFile; fileRef = D0D02AFA159871B2008E62BD /* osx_fish_launcher.m */; };
 		D0F01A0515A978A10034B3B1 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D0CBD583159EEE010024809C /* Foundation.framework */; };
+		D0FE8EE8179FB760008C9F21 /* parse_productions.cpp in Sources */ = {isa = PBXBuildFile; fileRef = D0FE8EE7179FB75F008C9F21 /* parse_productions.cpp */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -465,7 +466,8 @@
 		D0D2693C159835CA005D9B9C /* fish */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = fish; sourceTree = BUILT_PRODUCTS_DIR; };
 		D0F3373A1506DE3C00ECEFC0 /* builtin_test.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = builtin_test.cpp; sourceTree = "<group>"; };
 		D0F5E28415A7A32D00315DFF /* config.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = config.h; sourceTree = "<group>"; };
-		D0FE8EE6179CA8A5008C9F21 /* parse_tree_construction.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = parse_tree_construction.h; sourceTree = "<group>"; };
+		D0FE8EE6179CA8A5008C9F21 /* parse_productions.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = parse_productions.h; sourceTree = "<group>"; };
+		D0FE8EE7179FB75F008C9F21 /* parse_productions.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = parse_productions.cpp; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -589,8 +591,9 @@
 				D0A0853C13B3ACEE0099B651 /* exec.cpp */,
 				D0A0850C13B3ACEE0099B651 /* expand.h */,
 				D0A0853D13B3ACEE0099B651 /* expand.cpp */,
+				D0FE8EE6179CA8A5008C9F21 /* parse_productions.h */,
+				D0FE8EE7179FB75F008C9F21 /* parse_productions.cpp */,
 				D0C52F361765284C00BFAB82 /* parse_tree.h */,
-				D0FE8EE6179CA8A5008C9F21 /* parse_tree_construction.h */,
 				D0C52F351765284C00BFAB82 /* parse_tree.cpp */,
 				D0C52F341765281F00BFAB82 /* parse_exec.h */,
 				D0C52F331765281F00BFAB82 /* parse_exec.cpp */,
@@ -1116,6 +1119,7 @@
 				D0D02A89159839DF008E62BD /* fish.cpp in Sources */,
 				D0C52F371765284C00BFAB82 /* parse_tree.cpp in Sources */,
 				D0C52F381765720600BFAB82 /* parse_exec.cpp in Sources */,
+				D0FE8EE8179FB760008C9F21 /* parse_productions.cpp in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

parse_productions.cpp

@@ -0,0 +1,63 @@
+#include "parse_productions.h"
+
+using namespace parse_productions;
+
+#define PRODUCTIONS(sym) static const Production_t sym##_productions
+
+PRODUCTIONS(job_list) =
+    {
+        {},
+        {symbol_job, symbol_job_list},
+        {parse_token_type_end, symbol_job_list}
+    };
+
+
+
+/* A job_list is a list of jobs, separated by semicolons or newlines */
+
+DEC(job_list) {
+    symbol_job_list,
+    {
+        {},
+        {symbol_job, symbol_job_list},
+        {parse_token_type_end, symbol_job_list}
+    },
+    resolve_job_list
+};
+
+static int resolve_job_list(parse_token_type_t token_type, parse_keyword_t token_keyword)
+    {
+        switch (token_type)
+        {
+            case parse_token_type_string:
+                // 'end' is special
+                switch (token_keyword)
+                {
+                    case parse_keyword_end:
+                    case parse_keyword_else:
+                        // End this job list
+                        return 0;
+
+                    default:
+                        // Normal string
+                        return 1;
+                }
+
+            case parse_token_type_pipe:
+            case parse_token_type_redirection:
+            case parse_token_type_background:
+                return 1;
+
+            case parse_token_type_end:
+                // Empty line
+                return 2;
+
+            case parse_token_type_terminate:
+                // no more commands, just transition to empty
+                return 0;
+                break;
+
+            default:
+                return NO_PRODUCTION;
+        }
+    }

parse_productions.h

@@ -10,6 +10,67 @@
 
 /* Terrifying template black magic. */
 
+/*
+
+- Get info for symbol
+- Resolve production from info
+- Get productions for children
+- Get symbols for productions
+
+Production may be:
+
+1. Single value
+2. Sequence of values (possibly empty)
+3. Options of Single / Sequence
+
+Info to specify:
+
+1. Number of different productions
+2. Resolver function
+3. Symbols for associated productions
+
+Choice: should info be a class or a data?
+
+data:
+
+struct Symbol_t
+{
+    enum parse_token_type_t token_type;
+    int (*resolver)(parse_token_type_t tok, parse_keyword_t key); //may be trivial
+    production productions[5];
+}
+
+struct Production_t
+{
+    enum parse_token_type_t symbols[5];
+}
+
+*/
+
+namespace parse_productions
+{
+
+#define MAX_PRODUCTIONS 5
+#define MAX_SYMBOLS_PER_PRODUCTION 5
+
+
+
+struct Production_t
+{
+    enum parse_token_type_t symbols[MAX_SYMBOLS_PER_PRODUCTION];
+};
+
+struct Symbol_t
+{
+    enum parse_token_type_t token_type;
+    int (*resolver)(parse_token_type_t tok, parse_keyword_t key);
+    Production_t productions[MAX_PRODUCTIONS];
+};
+
+
+
+}
+
 namespace parse_symbols
 {
 

parse_tree.cpp

@@ -1,4 +1,4 @@
-#include "parse_tree_construction.h"
+#include "parse_productions.h"
 #include "tokenizer.h"
 #include <vector>
 

parse_tree.h

@@ -3,8 +3,8 @@
     Programmatic representation of fish code.
 */
 
-#ifndef FISH_PARSE_TREE_H
+#ifndef FISH_PARSE_PRODUCTIONS_H
-#define FISH_PARSE_TREE_H
+#define FISH_PARSE_PRODUCTIONS_H
 
 #include <wchar.h>