diff options
Diffstat (limited to 'prism/parser.h')
| -rw-r--r-- | prism/parser.h | 49 |
1 files changed, 23 insertions, 26 deletions
diff --git a/prism/parser.h b/prism/parser.h index ff1261841c..2bae4b0ac3 100644 --- a/prism/parser.h +++ b/prism/parser.h @@ -546,6 +546,17 @@ typedef struct pm_locals { pm_local_t *locals; } pm_locals_t; +/** The flags about scope parameters that can be set. */ +typedef uint8_t pm_scope_parameters_t; +static const pm_scope_parameters_t PM_SCOPE_PARAMETERS_NONE = 0x0; +static const pm_scope_parameters_t PM_SCOPE_PARAMETERS_FORWARDING_POSITIONALS = 0x1; +static const pm_scope_parameters_t PM_SCOPE_PARAMETERS_FORWARDING_KEYWORDS = 0x2; +static const pm_scope_parameters_t PM_SCOPE_PARAMETERS_FORWARDING_BLOCK = 0x4; +static const pm_scope_parameters_t PM_SCOPE_PARAMETERS_FORWARDING_ALL = 0x8; +static const pm_scope_parameters_t PM_SCOPE_PARAMETERS_IMPLICIT_DISALLOWED = 0x10; +static const pm_scope_parameters_t PM_SCOPE_PARAMETERS_NUMBERED_INNER = 0x20; +static const pm_scope_parameters_t PM_SCOPE_PARAMETERS_NUMBERED_FOUND = 0x40; + /** * This struct represents a node in a linked list of scopes. Some scopes can see * into their parent scopes, while others cannot. @@ -558,9 +569,18 @@ typedef struct pm_scope { pm_locals_t locals; /** + * This is a list of the implicit parameters contained within the block. + * These will be processed after the block is parsed to determine the kind + * of parameters node that should be used and to check if any errors need to + * be added. + */ + pm_node_list_t implicit_parameters; + + /** * This is a bitfield that indicates the parameters that are being used in - * this scope. It is a combination of the PM_SCOPE_PARAMS_* constants. There - * are three different kinds of parameters that can be used in a scope: + * this scope. It is a combination of the PM_SCOPE_PARAMETERS_* constants. + * There are three different kinds of parameters that can be used in a + * scope: * * - Ordinary parameters (e.g., def foo(bar); end) * - Numbered parameters (e.g., def foo; _1; end) @@ -575,15 +595,7 @@ typedef struct pm_scope { * - def foo(&); end * - def foo(...); end */ - uint8_t parameters; - - /** - * An integer indicating the number of numbered parameters on this scope. - * This is necessary to determine if child blocks are allowed to use - * numbered parameters, and to pass information to consumers of the AST - * about how many numbered parameters exist. - */ - int8_t numbered_parameters; + pm_scope_parameters_t parameters; /** * The current state of constant shareability for this scope. This is @@ -598,21 +610,6 @@ typedef struct pm_scope { bool closed; } pm_scope_t; -static const uint8_t PM_SCOPE_PARAMETERS_NONE = 0x0; -static const uint8_t PM_SCOPE_PARAMETERS_ORDINARY = 0x1; -static const uint8_t PM_SCOPE_PARAMETERS_NUMBERED = 0x2; -static const uint8_t PM_SCOPE_PARAMETERS_IT = 0x4; -static const uint8_t PM_SCOPE_PARAMETERS_TYPE_MASK = 0x7; - -static const uint8_t PM_SCOPE_PARAMETERS_FORWARDING_POSITIONALS = 0x8; -static const uint8_t PM_SCOPE_PARAMETERS_FORWARDING_KEYWORDS = 0x10; -static const uint8_t PM_SCOPE_PARAMETERS_FORWARDING_BLOCK = 0x20; -static const uint8_t PM_SCOPE_PARAMETERS_FORWARDING_ALL = 0x40; - -static const int8_t PM_SCOPE_NUMBERED_PARAMETERS_INNER = -2; -static const int8_t PM_SCOPE_NUMBERED_PARAMETERS_DISALLOWED = -1; -static const int8_t PM_SCOPE_NUMBERED_PARAMETERS_NONE = 0; - /** * A struct that represents a stack of boolean values. */ |