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On 06/17/2011 05:43 PM, Dan McCabe wrote:
> Data structures for switch statement and case label are created that parallel
> the structure of other AST data.
> ---
> src/glsl/ast.h | 24 ++++++++++++++++++++----
> 1 files changed, 20 insertions(+), 4 deletions(-)
>
> diff --git a/src/glsl/ast.h b/src/glsl/ast.h
> index 878f48b..39a59d4 100644
> --- a/src/glsl/ast.h
> +++ b/src/glsl/ast.h
> @@ -628,13 +628,19 @@ public:
>
> class ast_case_label : public ast_node {
> public:
> + ast_case_label(ast_expression *test_value);
> + virtual void print(void) const;
> +
> + virtual ir_rvalue *hir(exec_list *instructions,
> + struct _mesa_glsl_parse_state *state);
>
> /**
> - * An expression of NULL means 'default'.
> + * An test value of NULL means 'default'.
> */
> - ast_expression *expression;
> + ast_expression *test_value;
In the AST, this is an expression. What is significant about calling it
test_value? Also, I think the comment should read "A test value..."
> };
>
> +
> class ast_selection_statement : public ast_node {
> public:
> ast_selection_statement(ast_expression *condition,
> @@ -653,8 +659,18 @@ public:
>
> class ast_switch_statement : public ast_node {
> public:
> - ast_expression *expression;
> - exec_list statements;
> + ast_switch_statement(ast_expression *test_expression,
> + ast_node *body);
> + virtual void print(void) const;
> +
> + virtual ir_rvalue *hir(exec_list *instructions,
> + struct _mesa_glsl_parse_state *state);
> +
> + ast_expression *test_expression;
> + ast_node *body;
> +
> +protected:
> + void test_to_hir(class ir_loop *, struct _mesa_glsl_parse_state *);
> };
>
> class ast_iteration_statement : public ast_node {
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