Change C-API to pass compiler to custom functions

In preparation for import stack access (to be implemented)

Author: mgreter

contrib/plugin.cpp

@@ -10,8 +10,11 @@ extern "C" const char* ADDCALL libsass_get_version() {
   return libsass_version();
 }
 
-union Sass_Value* custom_function(const union Sass_Value* s_args, Sass_Function_Entry cb, struct Sass_Options* opts)
+union Sass_Value* custom_function(const union Sass_Value* s_args, Sass_Function_Entry cb, struct Sass_Compiler* comp)
 {
+  // get context/option struct associated with this compiler
+  struct Sass_Context* ctx = sass_compiler_get_context(comp);
+  struct Sass_Options* opts = sass_compiler_get_options(comp);
   // get the cookie from function descriptor
   void* cookie = sass_function_get_cookie(cb);
   // we actually abuse the void* to store an "int"

include/sass/context.h

@@ -136,6 +136,7 @@ ADDAPI char** ADDCALL sass_context_take_included_files (struct Sass_Context* ctx
 // Getters for Sass_Compiler options
 ADDAPI enum Sass_Compiler_State ADDCALL sass_compiler_get_state(struct Sass_Compiler* compiler);
 ADDAPI struct Sass_Context* ADDCALL sass_compiler_get_context(struct Sass_Compiler* compiler);
+ADDAPI struct Sass_Options* ADDCALL sass_compiler_get_options(struct Sass_Compiler* compiler);
 ADDAPI size_t ADDCALL sass_compiler_get_import_stack_size(struct Sass_Compiler* compiler);
 ADDAPI Sass_Import_Entry ADDCALL sass_compiler_get_last_import(struct Sass_Compiler* compiler);
 ADDAPI Sass_Import_Entry ADDCALL sass_compiler_get_import_entry(struct Sass_Compiler* compiler, size_t idx);

include/sass/functions.h

@@ -32,7 +32,7 @@ typedef struct Sass_Function (*Sass_Function_Entry);
 typedef struct Sass_Function* (*Sass_Function_List);
 // Typedef defining function signature and return type
 typedef union Sass_Value* (*Sass_Function_Fn)
-  (const union Sass_Value*, Sass_Function_Entry cb, struct Sass_Options* options);
+  (const union Sass_Value*, Sass_Function_Entry cb, struct Sass_Compiler* compiler);
 
 
 // Creator for sass custom importer return argument list

src/eval.cpp

@@ -330,7 +330,7 @@ namespace Sass {
       To_C to_c;
       union Sass_Value* c_args = sass_make_list(1, SASS_COMMA);
       sass_list_set_value(c_args, 0, message->perform(&to_c));
-      union Sass_Value* c_val = c_func(c_args, c_function, ctx.c_options);
+      union Sass_Value* c_val = c_func(c_args, c_function, ctx.c_compiler);
       sass_delete_value(c_args);
       sass_delete_value(c_val);
       return 0;
@@ -363,7 +363,7 @@ namespace Sass {
       To_C to_c;
       union Sass_Value* c_args = sass_make_list(1, SASS_COMMA);
       sass_list_set_value(c_args, 0, message->perform(&to_c));
-      union Sass_Value* c_val = c_func(c_args, c_function, ctx.c_options);
+      union Sass_Value* c_val = c_func(c_args, c_function, ctx.c_compiler);
       sass_delete_value(c_args);
       sass_delete_value(c_val);
       return 0;
@@ -393,7 +393,7 @@ namespace Sass {
       To_C to_c;
       union Sass_Value* c_args = sass_make_list(1, SASS_COMMA);
       sass_list_set_value(c_args, 0, message->perform(&to_c));
-      union Sass_Value* c_val = c_func(c_args, c_function, ctx.c_options);
+      union Sass_Value* c_val = c_func(c_args, c_function, ctx.c_compiler);
       sass_delete_value(c_args);
       sass_delete_value(c_val);
       return 0;
@@ -688,7 +688,7 @@ namespace Sass {
         Expression* arg = static_cast<Expression*>(node);
         sass_list_set_value(c_args, i, arg->perform(&to_c));
       }
-      union Sass_Value* c_val = c_func(c_args, c_function, ctx.c_options);
+      union Sass_Value* c_val = c_func(c_args, c_function, ctx.c_compiler);
       if (sass_value_get_tag(c_val) == SASS_ERROR) {
         error("error in C function " + c->name() + ": " + sass_error_get_message(c_val), c->pstate(), backtrace());
       } else if (sass_value_get_tag(c_val) == SASS_WARNING) {

src/sass_context.cpp

@@ -806,6 +806,7 @@ extern "C" {
   // Getters for Sass_Compiler options (get conected sass context)
   enum Sass_Compiler_State ADDCALL sass_compiler_get_state(struct Sass_Compiler* compiler) { return compiler->state; }
   struct Sass_Context* ADDCALL sass_compiler_get_context(struct Sass_Compiler* compiler) { return compiler->c_ctx; }
+  struct Sass_Options* ADDCALL sass_compiler_get_options(struct Sass_Compiler* compiler) { return compiler->c_ctx; }
   // Getters for Sass_Compiler options (query import stack)
   size_t ADDCALL sass_compiler_get_import_stack_size(struct Sass_Compiler* compiler) { return compiler->cpp_ctx->import_stack.size(); }
   Sass_Import_Entry ADDCALL sass_compiler_get_last_import(struct Sass_Compiler* compiler) { return compiler->cpp_ctx->import_stack.back(); }