Jacek Caban : vbscript: Added negation expression parser/ compiler implementation.
Alexandre Julliard
julliard at winehq.org
Mon Sep 12 11:43:00 CDT 2011
Module: wine
Branch: master
Commit: fb5509ec06939b26647e8054dd439aba9c0913c2
URL: http://source.winehq.org/git/wine.git/?a=commit;h=fb5509ec06939b26647e8054dd439aba9c0913c2
Author: Jacek Caban <jacek at codeweavers.com>
Date: Mon Sep 12 12:31:37 2011 +0200
vbscript: Added negation expression parser/compiler implementation.
---
dlls/vbscript/compile.c | 2 ++
dlls/vbscript/interp.c | 6 ++++++
dlls/vbscript/parse.h | 1 +
dlls/vbscript/parser.y | 11 ++++++++---
dlls/vbscript/vbscript.h | 1 +
5 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/dlls/vbscript/compile.c b/dlls/vbscript/compile.c
index 9e59fe1..baaa078 100644
--- a/dlls/vbscript/compile.c
+++ b/dlls/vbscript/compile.c
@@ -246,6 +246,8 @@ static HRESULT compile_expression(compile_ctx_t *ctx, expression_t *expr)
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_equal);
case EXPR_MEMBER:
return compile_member_expression(ctx, (member_expression_t*)expr, TRUE);
+ case EXPR_NEG:
+ return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_neg);
case EXPR_NOT:
return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_not);
case EXPR_NULL:
diff --git a/dlls/vbscript/interp.c b/dlls/vbscript/interp.c
index 90531fb..a70ca5f 100644
--- a/dlls/vbscript/interp.c
+++ b/dlls/vbscript/interp.c
@@ -391,6 +391,12 @@ static HRESULT interp_concat(exec_ctx_t *ctx)
return stack_push(ctx, &v);
}
+static HRESULT interp_neg(exec_ctx_t *ctx)
+{
+ FIXME("\n");
+ return E_NOTIMPL;
+}
+
static const instr_func_t op_funcs[] = {
#define X(x,n,a,b) interp_ ## x,
OP_LIST
diff --git a/dlls/vbscript/parse.h b/dlls/vbscript/parse.h
index b47360c..0c87209 100644
--- a/dlls/vbscript/parse.h
+++ b/dlls/vbscript/parse.h
@@ -23,6 +23,7 @@ typedef enum {
EXPR_EMPTY,
EXPR_EQUAL,
EXPR_MEMBER,
+ EXPR_NEG,
EXPR_NOT,
EXPR_NULL,
EXPR_STRING,
diff --git a/dlls/vbscript/parser.y b/dlls/vbscript/parser.y
index 756cf6a..316957c 100644
--- a/dlls/vbscript/parser.y
+++ b/dlls/vbscript/parser.y
@@ -84,7 +84,7 @@ static statement_t *new_call_statement(parser_ctx_t*,member_expression_t*);
%type <statement> Statement StatementNl
%type <expression> Expression LiteralExpression PrimaryExpression EqualityExpression CallExpression
%type <expression> ConcatExpression AdditiveExpression
-%type <expression> NotExpression
+%type <expression> NotExpression UnaryExpression
%type <member> MemberExpression
%type <expression> Arguments_opt ArgumentList_opt ArgumentList
%type <bool> OptionExplicit_opt
@@ -145,8 +145,13 @@ ConcatExpression
| ConcatExpression '&' AdditiveExpression { $$ = new_binary_expression(ctx, EXPR_CONCAT, $1, $3); CHECK_ERROR; }
AdditiveExpression
- : LiteralExpression /* FIXME */ { $$ = $1; }
- | CallExpression /* FIXME */ { $$ = $1; }
+ : UnaryExpression /* FIXME */ { $$ = $1; }
+
+
+UnaryExpression
+ : LiteralExpression { $$ = $1; }
+ | CallExpression { $$ = $1; }
+ | '-' UnaryExpression { $$ = new_unary_expression(ctx, EXPR_NEG, $2); CHECK_ERROR; }
CallExpression
: PrimaryExpression { $$ = $1; }
diff --git a/dlls/vbscript/vbscript.h b/dlls/vbscript/vbscript.h
index 2abbc9d..9db2692 100644
--- a/dlls/vbscript/vbscript.h
+++ b/dlls/vbscript/vbscript.h
@@ -96,6 +96,7 @@ typedef enum {
X(icall, 1, ARG_BSTR, ARG_UINT) \
X(icallv, 1, ARG_BSTR, ARG_UINT) \
X(long, 1, ARG_INT, 0) \
+ X(neg, 1, 0, 0) \
X(not, 1, 0, 0) \
X(null, 1, 0, 0) \
X(ret, 0, 0, 0) \
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