Move expression_context_* globals to parser_state

This moves the expression_context_block and expression_context_pc
globals to be members of parser_state and updates the parsers.

gdb/ChangeLog
2019-04-04  Tom Tromey  <tom@tromey.com>

	* rust-exp.y (rust_parser::crate_name, rust_parser::super_name)
	(rust_parser::convert_ast_to_type)
	(rust_parser::convert_ast_to_expression, rust_lex_tests): Update.
	* parser-defs.h (struct parser_state) <parser_state>: Add
	parameters.  Initialize new members.
	<expression_context_block, expression_context_pc>: New members.
	* parse.c (expression_context_block, expression_context_pc):
	Remove globals.
	(parse_exp_in_context): Update.
	* p-exp.y: Update all rules.
	(yylex): Update.
	* m2-exp.y: Update all rules.
	(yylex): Update.
	* go-exp.y (yylex): Update.
	* f-exp.y (yylex): Update.
	* d-exp.y: Update all rules.
	(yylex): Update.
	* c-exp.y: Update all rules.
	(lex_one_token, classify_name, yylex, c_parse): Update.
	* ada-exp.y (write_var_or_type, write_name_assoc): Update.

11 files changed, 136 insertions, 81 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 49dfd20..fec79eb 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,28 @@
 2019-04-04  Tom Tromey  <tom@tromey.com>
 
+	* rust-exp.y (rust_parser::crate_name, rust_parser::super_name)
+	(rust_parser::convert_ast_to_type)
+	(rust_parser::convert_ast_to_expression, rust_lex_tests): Update.
+	* parser-defs.h (struct parser_state) <parser_state>: Add
+	parameters.  Initialize new members.
+	<expression_context_block, expression_context_pc>: New members.
+	* parse.c (expression_context_block, expression_context_pc):
+	Remove globals.
+	(parse_exp_in_context): Update.
+	* p-exp.y: Update all rules.
+	(yylex): Update.
+	* m2-exp.y: Update all rules.
+	(yylex): Update.
+	* go-exp.y (yylex): Update.
+	* f-exp.y (yylex): Update.
+	* d-exp.y: Update all rules.
+	(yylex): Update.
+	* c-exp.y: Update all rules.
+	(lex_one_token, classify_name, yylex, c_parse): Update.
+	* ada-exp.y (write_var_or_type, write_name_assoc): Update.
+
+2019-04-04  Tom Tromey  <tom@tromey.com>
+
 	* gdbarch.h, gdbarch.c: Rebuild.
 	* gdbarch.sh (dtrace_parse_probe_argument): Change type.
 	* stap-probe.h: 
diff --git a/gdb/ada-exp.y b/gdb/ada-exp.y
index f1c587a..0cf85c5 100644
--- a/gdb/ada-exp.y
+++ b/gdb/ada-exp.y
@@ -1203,7 +1203,7 @@ write_var_or_type (struct parser_state *par_state,
   int name_len;
 
   if (block == NULL)
-    block = expression_context_block;
+    block = par_state->expression_context_block;
 
   encoded_name = ada_encode (name0.ptr);
   name_len = strlen (encoded_name);
@@ -1343,7 +1343,7 @@ write_var_or_type (struct parser_state *par_state,
 
       if (!have_full_symbols () && !have_partial_symbols () && block == NULL)
 	error (_("No symbol table is loaded.  Use the \"file\" command."));
-      if (block == expression_context_block)
+      if (block == par_state->expression_context_block)
 	error (_("No definition of \"%s\" in current context."), name0.ptr);
       else
 	error (_("No definition of \"%s\" in specified context."), name0.ptr);
@@ -1376,7 +1376,8 @@ write_name_assoc (struct parser_state *par_state, struct stoken name)
   if (strchr (name.ptr, '.') == NULL)
     {
       std::vector<struct block_symbol> syms;
-      int nsyms = ada_lookup_symbol_list (name.ptr, expression_context_block,
+      int nsyms = ada_lookup_symbol_list (name.ptr,
+					  par_state->expression_context_block,
 					  VAR_DOMAIN, &syms);
 
       if (nsyms != 1 || SYMBOL_CLASS (syms[0].symbol) == LOC_TYPEDEF)
diff --git a/gdb/c-exp.y b/gdb/c-exp.y
index 34e80bf..e6d6c20 100644
--- a/gdb/c-exp.y
+++ b/gdb/c-exp.y
@@ -559,8 +559,8 @@ exp	:	UNKNOWN_CPP_NAME '('
 			  /* This could potentially be a an argument defined
 			     lookup function (Koenig).  */
 			  write_exp_elt_opcode (pstate, OP_ADL_FUNC);
-			  write_exp_elt_block (pstate,
-					       expression_context_block);
+			  write_exp_elt_block
+			    (pstate, pstate->expression_context_block);
 			  write_exp_elt_sym (pstate,
 					     NULL); /* Placeholder.  */
 			  write_exp_string (pstate, $1.stoken);
@@ -1400,8 +1400,10 @@ typebase
 						NULL,
 						0); }
 	|	STRUCT name
-			{ $$ = lookup_struct (copy_name ($2),
-					      expression_context_block); }
+			{ $$
+			    = lookup_struct (copy_name ($2),
+					     pstate->expression_context_block);
+			}
 	|	STRUCT COMPLETE
 			{
 			  mark_completion_tag (TYPE_CODE_STRUCT, "", 0);
@@ -1414,8 +1416,9 @@ typebase
 			  $$ = NULL;
 			}
 	|	CLASS name
-			{ $$ = lookup_struct (copy_name ($2),
-					      expression_context_block); }
+			{ $$ = lookup_struct
+			    (copy_name ($2), pstate->expression_context_block);
+			}
 	|	CLASS COMPLETE
 			{
 			  mark_completion_tag (TYPE_CODE_STRUCT, "", 0);
@@ -1428,8 +1431,10 @@ typebase
 			  $$ = NULL;
 			}
 	|	UNION name
-			{ $$ = lookup_union (copy_name ($2),
-					     expression_context_block); }
+			{ $$
+			    = lookup_union (copy_name ($2),
+					    pstate->expression_context_block);
+			}
 	|	UNION COMPLETE
 			{
 			  mark_completion_tag (TYPE_CODE_UNION, "", 0);
@@ -1443,7 +1448,8 @@ typebase
 			}
 	|	ENUM name
 			{ $$ = lookup_enum (copy_name ($2),
-					    expression_context_block); }
+					    pstate->expression_context_block);
+			}
 	|	ENUM COMPLETE
 			{
 			  mark_completion_tag (TYPE_CODE_ENUM, "", 0);
@@ -1475,8 +1481,9 @@ typebase
                    reduced; template recognition happens by lookahead
                    in the token processing code in yylex. */
 	|	TEMPLATE name '<' type '>'
-			{ $$ = lookup_template_type(copy_name($2), $4,
-						    expression_context_block);
+			{ $$ = lookup_template_type
+			    (copy_name($2), $4,
+			     pstate->expression_context_block);
 			}
 	| const_or_volatile_or_space_identifier_noopt typebase
 			{ $$ = follow_types ($2); }
@@ -1733,10 +1740,11 @@ name_not_typename :	NAME
 			  struct field_of_this_result is_a_field_of_this;
 
 			  $$.stoken = $1;
-			  $$.sym = lookup_symbol ($1.ptr,
-						  expression_context_block,
-						  VAR_DOMAIN,
-						  &is_a_field_of_this);
+			  $$.sym
+			    = lookup_symbol ($1.ptr,
+					     pstate->expression_context_block,
+					     VAR_DOMAIN,
+					     &is_a_field_of_this);
 			  $$.is_a_field_of_this
 			    = is_a_field_of_this.type != NULL;
 			}
@@ -2869,7 +2877,8 @@ lex_one_token (struct parser_state *par_state, bool *is_quoted_name)
 	  {
 	    struct field_of_this_result is_a_field_of_this;
 
-	    if (lookup_symbol (copy, expression_context_block,
+	    if (lookup_symbol (copy,
+			       pstate->expression_context_block,
 			       VAR_DOMAIN,
 			       (par_state->language ()->la_language
 			        == language_cplus ? &is_a_field_of_this
@@ -3007,7 +3016,8 @@ classify_name (struct parser_state *par_state, const struct block *block,
 	  struct symbol *sym;
 
 	  yylval.theclass.theclass = Class;
-	  sym = lookup_struct_typedef (copy, expression_context_block, 1);
+	  sym = lookup_struct_typedef (copy,
+				       par_state->expression_context_block, 1);
 	  if (sym)
 	    yylval.theclass.type = SYMBOL_TYPE (sym);
 	  return CLASSNAME;
@@ -3145,7 +3155,7 @@ yylex (void)
      name-like token.  */
   current.token = lex_one_token (pstate, &is_quoted_name);
   if (current.token == NAME)
-    current.token = classify_name (pstate, expression_context_block,
+    current.token = classify_name (pstate, pstate->expression_context_block,
 				   is_quoted_name, last_lex_was_structop);
   if (pstate->language ()->la_language != language_cplus
       || (current.token != TYPENAME && current.token != COLONCOLON
@@ -3191,7 +3201,7 @@ yylex (void)
   else
     {
       gdb_assert (current.token == TYPENAME);
-      search_block = expression_context_block;
+      search_block = pstate->expression_context_block;
       obstack_grow (&name_obstack, current.value.sval.ptr,
 		    current.value.sval.length);
       context_type = current.value.tsym.type;
@@ -3288,8 +3298,9 @@ c_parse (struct parser_state *par_state)
 
   gdb::unique_xmalloc_ptr<struct macro_scope> macro_scope;
 
-  if (expression_context_block)
-    macro_scope = sal_macro_scope (find_pc_line (expression_context_pc, 0));
+  if (par_state->expression_context_block)
+    macro_scope
+      = sal_macro_scope (find_pc_line (par_state->expression_context_pc, 0));
   else
     macro_scope = default_macro_scope ();
   if (! macro_scope)
diff --git a/gdb/d-exp.y b/gdb/d-exp.y
index 50c8325..a701c25 100644
--- a/gdb/d-exp.y
+++ b/gdb/d-exp.y
@@ -416,8 +416,8 @@ PrimaryExpression:
 		  struct block_symbol sym;
 
 		  /* Handle VAR, which could be local or global.  */
-		  sym = lookup_symbol (copy, expression_context_block, VAR_DOMAIN,
-				       &is_a_field_of_this);
+		  sym = lookup_symbol (copy, pstate->expression_context_block,
+				       VAR_DOMAIN, &is_a_field_of_this);
 		  if (sym.symbol && SYMBOL_CLASS (sym.symbol) != LOC_TYPEDEF)
 		    {
 		      if (symbol_read_needs_frame (sym.symbol))
@@ -1458,7 +1458,7 @@ yylex (void)
   if (current.token == IDENTIFIER)
     {
       yylval = current.value;
-      current.token = classify_name (pstate, expression_context_block);
+      current.token = classify_name (pstate, pstate->expression_context_block);
       current.value = yylval;
     }
 
@@ -1489,7 +1489,8 @@ yylex (void)
 	      yylval.sval.ptr = (char *) obstack_base (&name_obstack);
 	      yylval.sval.length = obstack_object_size (&name_obstack);
 
-	      current.token = classify_name (pstate, expression_context_block);
+	      current.token = classify_name (pstate,
+					     pstate->expression_context_block);
 	      current.value = yylval;
 
 	      /* We keep going until we find a TYPENAME.  */
@@ -1526,7 +1527,7 @@ yylex (void)
   else
     {
       gdb_assert (current.token == TYPENAME);
-      search_block = expression_context_block;
+      search_block = pstate->expression_context_block;
       obstack_grow (&name_obstack, current.value.sval.ptr,
 		    current.value.sval.length);
       context_type = current.value.tsym.type;
diff --git a/gdb/f-exp.y b/gdb/f-exp.y
index ca40778..5670136 100644
--- a/gdb/f-exp.y
+++ b/gdb/f-exp.y
@@ -1274,7 +1274,7 @@ yylex (void)
 	   way we can refer to it unconditionally below.  */
 	memset (&is_a_field_of_this, 0, sizeof (is_a_field_of_this));
 
-	result = lookup_symbol (tmp, expression_context_block,
+	result = lookup_symbol (tmp, pstate->expression_context_block,
 				lookup_domains[i],
 				pstate->language ()->la_language
 				== language_cplus
diff --git a/gdb/go-exp.y b/gdb/go-exp.y
index 3f564cf..d112a73 100644
--- a/gdb/go-exp.y
+++ b/gdb/go-exp.y
@@ -1528,14 +1528,14 @@ yylex (void)
 	      return classify_unsafe_function (name2.value.sval);
 	    }
 
-	  if (package_name_p (copy, expression_context_block))
+	  if (package_name_p (copy, pstate->expression_context_block))
 	    {
 	      popping = 1;
 	      yylval.sval = build_packaged_name (current.value.sval.ptr,
 						 current.value.sval.length,
 						 name2.value.sval.ptr,
 						 name2.value.sval.length);
-	      return classify_packaged_name (expression_context_block);
+	      return classify_packaged_name (pstate->expression_context_block);
 	    }
 	}
 
@@ -1549,7 +1549,7 @@ yylex (void)
 
   popping = 1;
   yylval = current.value;
-  return classify_name (pstate, expression_context_block);
+  return classify_name (pstate, pstate->expression_context_block);
 }
 
 int
diff --git a/gdb/m2-exp.y b/gdb/m2-exp.y
index 611981f..c1418c7 100644
--- a/gdb/m2-exp.y
+++ b/gdb/m2-exp.y
@@ -508,7 +508,7 @@ block	:	fblock
 fblock	:	BLOCKNAME
 			{ struct symbol *sym
 			    = lookup_symbol (copy_name ($1),
-					     expression_context_block,
+					     pstate->expression_context_block,
 					     VAR_DOMAIN, 0).symbol;
 			  $$ = sym;}
 	;
@@ -561,10 +561,11 @@ variable:	NAME
 			{ struct block_symbol sym;
 			  struct field_of_this_result is_a_field_of_this;
 
-			  sym = lookup_symbol (copy_name ($1),
-					       expression_context_block,
-					       VAR_DOMAIN,
-					       &is_a_field_of_this);
+			  sym
+			    = lookup_symbol (copy_name ($1),
+					     pstate->expression_context_block,
+					     VAR_DOMAIN,
+					     &is_a_field_of_this);
 
 			  if (sym.symbol)
 			    {
@@ -596,10 +597,13 @@ variable:	NAME
 
 type
 	:	TYPENAME
-			{ $$ = lookup_typename (pstate->language (),
-						pstate->gdbarch (),
-						copy_name ($1),
-						expression_context_block, 0); }
+			{ $$
+			    = lookup_typename (pstate->language (),
+					       pstate->gdbarch (),
+					       copy_name ($1),
+					       pstate->expression_context_block,
+					       0);
+			}
 
 	;
 
@@ -965,12 +969,13 @@ yylex (void)
 
     if (lookup_symtab (tmp))
       return BLOCKNAME;
-    sym = lookup_symbol (tmp, expression_context_block, VAR_DOMAIN, 0).symbol;
+    sym = lookup_symbol (tmp, pstate->expression_context_block,
+			 VAR_DOMAIN, 0).symbol;
     if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
       return BLOCKNAME;
     if (lookup_typename (pstate->language (), pstate->gdbarch (),
 			 copy_name (yylval.sval),
-			 expression_context_block, 1))
+			 pstate->expression_context_block, 1))
       return TYPENAME;
 
     if(sym)
diff --git a/gdb/p-exp.y b/gdb/p-exp.y
index 79b2979..dbccf35 100644
--- a/gdb/p-exp.y
+++ b/gdb/p-exp.y
@@ -784,11 +784,15 @@ typebase  /* Implements (approximately): (type-qualifier)* type-specifier */
 	|	TYPENAME
 			{ $$ = $1.type; }
 	|	STRUCT name
-			{ $$ = lookup_struct (copy_name ($2),
-					      expression_context_block); }
+			{ $$
+			    = lookup_struct (copy_name ($2),
+					     pstate->expression_context_block);
+			}
 	|	CLASS name
-			{ $$ = lookup_struct (copy_name ($2),
-					      expression_context_block); }
+			{ $$
+			    = lookup_struct (copy_name ($2),
+					     pstate->expression_context_block);
+			}
 	/* "const" and "volatile" are curently ignored.  A type qualifier
 	   after the type is handled in the ptype rule.  I think these could
 	   be too.  */
@@ -1463,7 +1467,7 @@ yylex (void)
              inserted in FPC stabs debug info.  */
 	  static const char this_name[] = "this";
 
-	  if (lookup_symbol (this_name, expression_context_block,
+	  if (lookup_symbol (this_name, pstate->expression_context_block,
 			     VAR_DOMAIN, NULL).symbol)
 	    {
 	      free (uptokstart);
@@ -1513,7 +1517,7 @@ yylex (void)
     if (is_a_field)
       sym = NULL;
     else
-      sym = lookup_symbol (tmp, expression_context_block,
+      sym = lookup_symbol (tmp, pstate->expression_context_block,
 			   VAR_DOMAIN, &is_a_field_of_this).symbol;
     /* second chance uppercased (as Free Pascal does).  */
     if (!sym && is_a_field_of_this.type == NULL && !is_a_field)
@@ -1528,7 +1532,7 @@ yylex (void)
        if (is_a_field)
 	 sym = NULL;
        else
-	 sym = lookup_symbol (tmp, expression_context_block,
+	 sym = lookup_symbol (tmp, pstate->expression_context_block,
 			      VAR_DOMAIN, &is_a_field_of_this).symbol;
       }
     /* Third chance Capitalized (as GPC does).  */
@@ -1550,7 +1554,7 @@ yylex (void)
        if (is_a_field)
 	 sym = NULL;
        else
-	 sym = lookup_symbol (tmp, expression_context_block,
+	 sym = lookup_symbol (tmp, pstate->expression_context_block,
 			      VAR_DOMAIN, &is_a_field_of_this).symbol;
       }
 
@@ -1645,8 +1649,10 @@ yylex (void)
 		      tmp1 += 2;
 		      memcpy (tmp1, namestart, p - namestart);
 		      tmp1[p - namestart] = '\0';
-		      cur_sym = lookup_symbol (ncopy, expression_context_block,
-					       VAR_DOMAIN, NULL).symbol;
+		      cur_sym
+			= lookup_symbol (ncopy,
+					 pstate->expression_context_block,
+					 VAR_DOMAIN, NULL).symbol;
 		      if (cur_sym)
 			{
 			  if (SYMBOL_CLASS (cur_sym) == LOC_TYPEDEF)
diff --git a/gdb/parse.c b/gdb/parse.c
index c4c3517..d76aeb1 100644
--- a/gdb/parse.c
+++ b/gdb/parse.c
@@ -66,8 +66,6 @@ const struct exp_descriptor exp_descriptor_standard =
   };
 
 /* Global variables declared in parser-defs.h (and commented there).  */
-const struct block *expression_context_block;
-CORE_ADDR expression_context_pc;
 innermost_block_tracker innermost_block;
 int arglist_len;
 static struct type_stack type_stack;
@@ -593,7 +591,7 @@ mark_completion_tag (enum type_code tag, const char *ptr, int length)
    value in the value history, I.e. $$1  */
 
 void
-write_dollar_variable (struct expr_builder *ps, struct stoken str)
+write_dollar_variable (struct parser_state *ps, struct stoken str)
 {
   struct block_symbol sym;
   struct bound_minimal_symbol msym;
@@ -683,7 +681,7 @@ handle_register:
   str.ptr++;
   write_exp_string (ps, str);
   write_exp_elt_opcode (ps, OP_REGISTER);
-  innermost_block.update (expression_context_block,
+  innermost_block.update (ps->expression_context_block,
 			  INNERMOST_BLOCK_FOR_REGISTERS);
   return;
 }
@@ -1135,7 +1133,8 @@ parse_exp_in_context (const char **stringptr, CORE_ADDR pc,
   scoped_restore save_funcall_chain = make_scoped_restore (&funcall_chain,
 							   &funcalls);
 
-  expression_context_block = block;
+  const struct block *expression_context_block = block;
+  CORE_ADDR expression_context_pc = 0;
 
   /* If no context specified, try using the current frame, if any.  */
   if (!expression_context_block)
@@ -1189,7 +1188,8 @@ parse_exp_in_context (const char **stringptr, CORE_ADDR pc,
      and others called from *.y) ensure CURRENT_LANGUAGE gets restored
      to the value matching SELECTED_FRAME as set by get_current_arch.  */
 
-  parser_state ps (lang, get_current_arch ());
+  parser_state ps (lang, get_current_arch (), expression_context_block,
+		   expression_context_pc);
 
   scoped_restore_current_language lang_saver;
   set_language (lang->la_language);
diff --git a/gdb/parser-defs.h b/gdb/parser-defs.h
index 5bc9d25..f895a55 100644
--- a/gdb/parser-defs.h
+++ b/gdb/parser-defs.h
@@ -86,24 +86,29 @@ struct parser_state : public expr_builder
      And GDBARCH is the gdbarch to use during parsing.  */
 
   parser_state (const struct language_defn *lang,
-		struct gdbarch *gdbarch)
-    : expr_builder (lang, gdbarch)
+		struct gdbarch *gdbarch,
+		const struct block *context_block,
+		CORE_ADDR context_pc)
+    : expr_builder (lang, gdbarch),
+      expression_context_block (context_block),
+      expression_context_pc (context_pc)
   {
   }
 
   DISABLE_COPY_AND_ASSIGN (parser_state);
-};
 
-/* If this is nonzero, this block is used as the lexical context
-   for symbol names.  */
+  /* If this is nonzero, this block is used as the lexical context for
+     symbol names.  */
 
-extern const struct block *expression_context_block;
+  const struct block * const expression_context_block;
 
-/* If expression_context_block is non-zero, then this is the PC within
-   the block that we want to evaluate expressions at.  When debugging
-   C or C++ code, we use this to find the exact line we're at, and
-   then look up the macro definitions active at that point.  */
-extern CORE_ADDR expression_context_pc;
+  /* If expression_context_block is non-zero, then this is the PC
+     within the block that we want to evaluate expressions at.  When
+     debugging C or C++ code, we use this to find the exact line we're
+     at, and then look up the macro definitions active at that
+     point.  */
+  const CORE_ADDR expression_context_pc;
+};
 
 /* When parsing expressions we track the innermost block that was
    referenced.  */
@@ -283,7 +288,7 @@ extern void write_exp_elt_objfile (struct expr_builder *,
 extern void write_exp_msymbol (struct expr_builder *,
 			       struct bound_minimal_symbol);
 
-extern void write_dollar_variable (struct expr_builder *, struct stoken str);
+extern void write_dollar_variable (struct parser_state *, struct stoken str);
 
 extern void mark_struct_expression (struct expr_builder *);
 
diff --git a/gdb/rust-exp.y b/gdb/rust-exp.y
index 9b6ca19..1b7e33e 100644
--- a/gdb/rust-exp.y
+++ b/gdb/rust-exp.y
@@ -1033,7 +1033,7 @@ rust_parser::concat3 (const char *s1, const char *s2, const char *s3)
 const struct rust_op *
 rust_parser::crate_name (const struct rust_op *name)
 {
-  std::string crate = rust_crate_for_block (expression_context_block);
+  std::string crate = rust_crate_for_block (pstate->expression_context_block);
   struct stoken result;
 
   gdb_assert (name->opcode == OP_VAR_VALUE);
@@ -1053,7 +1053,7 @@ rust_parser::crate_name (const struct rust_op *name)
 const struct rust_op *
 rust_parser::super_name (const struct rust_op *ident, unsigned int n_supers)
 {
-  const char *scope = block_scope (expression_context_block);
+  const char *scope = block_scope (pstate->expression_context_block);
   int offset;
 
   gdb_assert (ident->opcode == OP_VAR_VALUE);
@@ -2045,7 +2045,7 @@ rust_parser::convert_ast_to_type (const struct rust_op *operation)
     {
       const char *varname = convert_name (operation);
 
-      result = rust_lookup_type (varname, expression_context_block);
+      result = rust_lookup_type (varname, pstate->expression_context_block);
       if (result == NULL)
 	error (_("No typed name '%s' in current context"), varname);
       return result;
@@ -2118,7 +2118,7 @@ rust_parser::convert_ast_to_type (const struct rust_op *operation)
 
 	/* We don't allow creating new tuple types (yet), but we do
 	   allow looking up existing tuple types.  */
-	result = rust_lookup_type (name, expression_context_block);
+	result = rust_lookup_type (name, pstate->expression_context_block);
 	if (result == NULL)
 	  error (_("could not find tuple type '%s'"), name);
       }
@@ -2311,7 +2311,8 @@ rust_parser::convert_ast_to_expression (const struct rust_op *operation,
 	    struct type *type;
 	    const char *varname = convert_name (operation->left.op);
 
-	    type = rust_lookup_type (varname, expression_context_block);
+	    type = rust_lookup_type (varname,
+				     pstate->expression_context_block);
 	    if (type != NULL)
 	      {
 		/* This is actually a tuple struct expression, not a
@@ -2372,7 +2373,7 @@ rust_parser::convert_ast_to_expression (const struct rust_op *operation,
 	  }
 
 	varname = convert_name (operation);
-	sym = rust_lookup_symbol (varname, expression_context_block,
+	sym = rust_lookup_symbol (varname, pstate->expression_context_block,
 				  VAR_DOMAIN);
 	if (sym.symbol != NULL && SYMBOL_CLASS (sym.symbol) != LOC_TYPEDEF)
 	  {
@@ -2391,7 +2392,8 @@ rust_parser::convert_ast_to_expression (const struct rust_op *operation,
 		type = SYMBOL_TYPE (sym.symbol);
 	      }
 	    if (type == NULL)
-	      type = rust_lookup_type (varname, expression_context_block);
+	      type = rust_lookup_type (varname,
+				       pstate->expression_context_block);
 	    if (type == NULL)
 	      error (_("No symbol '%s' in current context"), varname);
 
@@ -2449,7 +2451,7 @@ rust_parser::convert_ast_to_expression (const struct rust_op *operation,
 	  }
 
 	name = convert_name (operation->left.op);
-	type = rust_lookup_type (name, expression_context_block);
+	type = rust_lookup_type (name, pstate->expression_context_block);
 	if (type == NULL)
 	  error (_("Could not find type '%s'"), operation->left.sval.ptr);
 
@@ -2707,7 +2709,8 @@ rust_lex_tests (void)
   int i;
 
   // Set up dummy "parser", so that rust_type works.
-  struct parser_state ps (&rust_language_defn, target_gdbarch ());
+  struct parser_state ps (&rust_language_defn, target_gdbarch (),
+			  nullptr, 0);
   rust_parser parser (&ps);
 
   rust_lex_test_one (&parser, "", 0);