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d3dcompiler: Parse array indexing expressions.

This commit is contained in:
Matteo Bruni 2012-09-28 17:22:41 +02:00 committed by Alexandre Julliard
parent f50007b856
commit b1594dabcc
1 changed files with 58 additions and 0 deletions
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58
dlls/d3dcompiler_43/hlsl.y
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@ -1852,6 +1852,64 @@ postfix_expr: primary_expr
return 1; return 1;
} }
} }
| postfix_expr '[' expr ']'
{
/* This may be an array dereference or a vector/matrix
* subcomponent access.
* We store it as an array dereference in any case. */
struct hlsl_ir_deref *deref = d3dcompiler_alloc(sizeof(*deref));
struct hlsl_type *expr_type = $1->data_type;
struct source_location loc;
TRACE("Array dereference from type %s\n", debug_hlsl_type(expr_type));
if (!deref)
{
ERR("Out of memory\n");
return -1;
}
deref->node.type = HLSL_IR_DEREF;
set_location(&loc, &@2);
deref->node.loc = loc;
if (expr_type->type == HLSL_CLASS_ARRAY)
{
deref->node.data_type = expr_type->e.array.type;
}
else if (expr_type->type == HLSL_CLASS_MATRIX)
{
deref->node.data_type = new_hlsl_type(NULL, HLSL_CLASS_VECTOR, expr_type->base_type, expr_type->dimx, 1);
}
else if (expr_type->type == HLSL_CLASS_VECTOR)
{
deref->node.data_type = new_hlsl_type(NULL, HLSL_CLASS_SCALAR, expr_type->base_type, 1, 1);
}
else
{
if (expr_type->type == HLSL_CLASS_SCALAR)
hlsl_report_message(loc.file, loc.line, loc.col, HLSL_LEVEL_ERROR,
"array-indexed expression is scalar");
else
hlsl_report_message(loc.file, loc.line, loc.col, HLSL_LEVEL_ERROR,
"expression is not array-indexable");
d3dcompiler_free(deref);
free_instr($1);
free_instr($3);
return 1;
}
if ($3->data_type->type != HLSL_CLASS_SCALAR)
{
hlsl_report_message(loc.file, loc.line, loc.col, HLSL_LEVEL_ERROR,
"array index is not scalar");
d3dcompiler_free(deref);
free_instr($1);
free_instr($3);
return 1;
}
deref->type = HLSL_IR_DEREF_ARRAY;
deref->v.array.array = $1;
deref->v.array.index = $3;
$$ = &deref->node;
}
/* "var_modifiers" doesn't make sense in this case, but it's needed /* "var_modifiers" doesn't make sense in this case, but it's needed
in the grammar to avoid shift/reduce conflicts. */ in the grammar to avoid shift/reduce conflicts. */
| var_modifiers type '(' initializer_expr_list ')' | var_modifiers type '(' initializer_expr_list ')'