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annotate src/vim9.h @ 23696:c0a8837e86cb

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Added tag v8.2.2389 for changeset e3d77689d356b03d437183a20399690ca7a6a64c
author Bram Moolenaar <Bram@vim.org>
date Thu, 21 Jan 2021 23:00:05 +0100
parents e3d77689d356
children 19073a768852
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19181
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1 /* vi:set ts=8 sts=4 sw=4 noet:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9
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10 /*
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11 * vim9.h: types and globals used for Vim9 script.
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12 */
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13
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14 typedef enum {
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15 ISN_EXEC, // execute Ex command line isn_arg.string
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16 ISN_EXECCONCAT, // execute Ex command from isn_arg.number items on stack
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17 ISN_ECHO, // echo isn_arg.echo.echo_count items on top of stack
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18 ISN_EXECUTE, // execute Ex commands isn_arg.number items on top of stack
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19 ISN_ECHOMSG, // echo Ex commands isn_arg.number items on top of stack
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20 ISN_ECHOERR, // echo Ex commands isn_arg.number items on top of stack
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21 ISN_RANGE, // compute range from isn_arg.string, push to stack
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22
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23 // get and set variables
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24 ISN_LOAD, // push local variable isn_arg.number
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25 ISN_LOADV, // push v: variable isn_arg.number
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26 ISN_LOADG, // push g: variable isn_arg.string
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27 ISN_LOADAUTO, // push g: autoload variable isn_arg.string
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28 ISN_LOADB, // push b: variable isn_arg.string
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29 ISN_LOADW, // push w: variable isn_arg.string
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30 ISN_LOADT, // push t: variable isn_arg.string
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31 ISN_LOADGDICT, // push g: dict
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32 ISN_LOADBDICT, // push b: dict
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33 ISN_LOADWDICT, // push w: dict
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34 ISN_LOADTDICT, // push t: dict
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35 ISN_LOADS, // push s: variable isn_arg.loadstore
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36 ISN_LOADOUTER, // push variable from outer scope isn_arg.outer
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37 ISN_LOADSCRIPT, // push script-local variable isn_arg.script.
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38 ISN_LOADOPT, // push option isn_arg.string
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39 ISN_LOADENV, // push environment variable isn_arg.string
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40 ISN_LOADREG, // push register isn_arg.number
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41
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42 ISN_STORE, // pop into local variable isn_arg.number
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43 ISN_STOREV, // pop into v: variable isn_arg.number
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44 ISN_STOREG, // pop into global variable isn_arg.string
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45 ISN_STOREAUTO, // pop into global autoload variable isn_arg.string
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46 ISN_STOREB, // pop into buffer-local variable isn_arg.string
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47 ISN_STOREW, // pop into window-local variable isn_arg.string
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48 ISN_STORET, // pop into tab-local variable isn_arg.string
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49 ISN_STORES, // pop into script variable isn_arg.loadstore
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50 ISN_STOREOUTER, // pop variable into outer scope isn_arg.outer
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51 ISN_STORESCRIPT, // pop into script variable isn_arg.script
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52 ISN_STOREOPT, // pop into option isn_arg.string
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53 ISN_STOREENV, // pop into environment variable isn_arg.string
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54 ISN_STOREREG, // pop into register isn_arg.number
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55 // ISN_STOREOTHER, // pop into other script variable isn_arg.other.
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56
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57 ISN_STORENR, // store number into local variable isn_arg.storenr.stnr_idx
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58 ISN_STOREINDEX, // store into list or dictionary, type isn_arg.vartype,
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59 // value/index/variable on stack
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60
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61 ISN_UNLET, // unlet variable isn_arg.unlet.ul_name
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62 ISN_UNLETENV, // unlet environment variable isn_arg.unlet.ul_name
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63 ISN_UNLETINDEX, // unlet item of list or dict
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64
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65 ISN_LOCKCONST, // lock constant value
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66
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67 // constants
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68 ISN_PUSHNR, // push number isn_arg.number
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69 ISN_PUSHBOOL, // push bool value isn_arg.number
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70 ISN_PUSHSPEC, // push special value isn_arg.number
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71 ISN_PUSHF, // push float isn_arg.fnumber
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72 ISN_PUSHS, // push string isn_arg.string
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73 ISN_PUSHBLOB, // push blob isn_arg.blob
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74 ISN_PUSHFUNC, // push func isn_arg.string
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75 ISN_PUSHCHANNEL, // push channel isn_arg.channel
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76 ISN_PUSHJOB, // push channel isn_arg.job
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77 ISN_NEWLIST, // push list from stack items, size is isn_arg.number
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78 ISN_NEWDICT, // push dict from stack items, size is isn_arg.number
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79
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80 // function call
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81 ISN_BCALL, // call builtin function isn_arg.bfunc
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82 ISN_DCALL, // call def function isn_arg.dfunc
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83 ISN_UCALL, // call user function or funcref/partial isn_arg.ufunc
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84 ISN_PCALL, // call partial, use isn_arg.pfunc
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85 ISN_PCALL_END, // cleanup after ISN_PCALL with cpf_top set
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86 ISN_RETURN, // return, result is on top of stack
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87 ISN_RETURN_ZERO, // Push zero, then return
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88 ISN_FUNCREF, // push a function ref to dfunc isn_arg.funcref
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89 ISN_NEWFUNC, // create a global function from a lambda function
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90 ISN_DEF, // list functions
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91
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92 // expression operations
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93 ISN_JUMP, // jump if condition is matched isn_arg.jump
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94
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95 // loop
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96 ISN_FOR, // get next item from a list, uses isn_arg.forloop
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97
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98 ISN_TRY, // add entry to ec_trystack, uses isn_arg.try
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99 ISN_THROW, // pop value of stack, store in v:exception
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100 ISN_PUSHEXC, // push v:exception
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101 ISN_CATCH, // drop v:exception
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102 ISN_ENDTRY, // take entry off from ec_trystack
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103
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104 // more expression operations
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105 ISN_ADDLIST, // add two lists
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106 ISN_ADDBLOB, // add two blobs
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107
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108 // operation with two arguments; isn_arg.op.op_type is exprtype_T
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109 ISN_OPNR,
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110 ISN_OPFLOAT,
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111 ISN_OPANY,
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112
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113 // comparative operations; isn_arg.op.op_type is exprtype_T, op_ic used
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114 ISN_COMPAREBOOL,
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115 ISN_COMPARESPECIAL,
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116 ISN_COMPARENR,
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117 ISN_COMPAREFLOAT,
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118 ISN_COMPARESTRING,
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119 ISN_COMPAREBLOB,
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120 ISN_COMPARELIST,
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121 ISN_COMPAREDICT,
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122 ISN_COMPAREFUNC,
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123 ISN_COMPAREANY,
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124
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125 // expression operations
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126 ISN_CONCAT,
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127 ISN_STRINDEX, // [expr] string index
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128 ISN_STRSLICE, // [expr:expr] string slice
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129 ISN_LISTAPPEND, // append to a list, like add()
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130 ISN_LISTINDEX, // [expr] list index
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131 ISN_LISTSLICE, // [expr:expr] list slice
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132 ISN_ANYINDEX, // [expr] runtime index
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133 ISN_ANYSLICE, // [expr:expr] runtime slice
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134 ISN_SLICE, // drop isn_arg.number items from start of list
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135 ISN_BLOBAPPEND, // append to a blob, like add()
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136 ISN_GETITEM, // push list item, isn_arg.number is the index
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137 ISN_MEMBER, // dict[member]
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138 ISN_STRINGMEMBER, // dict.member using isn_arg.string
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139 ISN_2BOOL, // falsy/truthy to bool, invert if isn_arg.number != 0
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140 ISN_COND2BOOL, // convert value to bool
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141 ISN_2STRING, // convert value to string at isn_arg.number on stack
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142 ISN_2STRING_ANY, // like ISN_2STRING but check type
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143 ISN_NEGATENR, // apply "-" to number
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144
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145 ISN_CHECKNR, // check value can be used as a number
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146 ISN_CHECKTYPE, // check value type is isn_arg.type.ct_type
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147 ISN_CHECKLEN, // check list length is isn_arg.checklen.cl_min_len
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148 ISN_SETTYPE, // set dict type to isn_arg.type.ct_type
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149
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150 ISN_PUT, // ":put", uses isn_arg.put
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151
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152 ISN_CMDMOD, // set cmdmod
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153 ISN_CMDMOD_REV, // undo ISN_CMDMOD
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154
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155 ISN_UNPACK, // unpack list into items, uses isn_arg.unpack
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156 ISN_SHUFFLE, // move item on stack up or down
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157 ISN_DROP // pop stack and discard value
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158 } isntype_T;
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159
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160
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161 // arguments to ISN_BCALL
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162 typedef struct {
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163 int cbf_idx; // index in "global_functions"
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164 int cbf_argcount; // number of arguments on top of stack
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165 } cbfunc_T;
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166
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167 // arguments to ISN_DCALL
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168 typedef struct {
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169 int cdf_idx; // index in "def_functions" for ISN_DCALL
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170 int cdf_argcount; // number of arguments on top of stack
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171 } cdfunc_T;
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172
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173 // arguments to ISN_PCALL
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174 typedef struct {
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175 int cpf_top; // when TRUE partial is above the arguments
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176 int cpf_argcount; // number of arguments on top of stack
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177 } cpfunc_T;
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178
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179 // arguments to ISN_UCALL and ISN_XCALL
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180 typedef struct {
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181 char_u *cuf_name;
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182 int cuf_argcount; // number of arguments on top of stack
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183 } cufunc_T;
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184
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185 typedef enum {
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186 JUMP_ALWAYS,
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187 JUMP_IF_FALSE, // pop and jump if false
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188 JUMP_AND_KEEP_IF_TRUE, // jump if top of stack is truthy, drop if not
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189 JUMP_AND_KEEP_IF_FALSE, // jump if top of stack is falsy, drop if not
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190 JUMP_IF_COND_TRUE, // jump if top of stack is true, drop if not
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191 JUMP_IF_COND_FALSE, // jump if top of stack is false, drop if not
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192 } jumpwhen_T;
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193
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194 // arguments to ISN_JUMP
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195 typedef struct {
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196 jumpwhen_T jump_when;
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197 int jump_where; // position to jump to
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198 } jump_T;
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199
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200 // arguments to ISN_FOR
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201 typedef struct {
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202 int for_idx; // loop variable index
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203 int for_end; // position to jump to after done
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204 } forloop_T;
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205
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206 // arguments to ISN_TRY
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207 typedef struct {
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208 int try_catch; // position to jump to on throw
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209 int try_finally; // position to jump to for return
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210 } try_T;
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211
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212 // arguments to ISN_ECHO
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213 typedef struct {
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214 int echo_with_white; // :echo instead of :echon
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215 int echo_count; // number of expressions
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216 } echo_T;
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217
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218 // arguments to ISN_OPNR, ISN_OPFLOAT, etc.
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219 typedef struct {
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220 exprtype_T op_type;
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221 int op_ic; // TRUE with '#', FALSE with '?', else MAYBE
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222 } opexpr_T;
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223
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224 // arguments to ISN_CHECKTYPE
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225 typedef struct {
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226 type_T *ct_type;
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227 char ct_off; // offset in stack (positive), 1 is bottom
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228 char ct_arg_idx; // argument index or zero
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229 } checktype_T;
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230
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231 // arguments to ISN_STORENR
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232 typedef struct {
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233 int stnr_idx;
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234 varnumber_T stnr_val;
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235 } storenr_T;
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236
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237 // arguments to ISN_STOREOPT
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238 typedef struct {
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239 char_u *so_name;
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240 int so_flags;
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241 } storeopt_T;
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242
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243 // arguments to ISN_LOADS and ISN_STORES
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244 typedef struct {
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245 char_u *ls_name; // variable name (with s: for ISN_STORES)
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246 int ls_sid; // script ID
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247 } loadstore_T;
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248
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249 // arguments to ISN_LOADSCRIPT and ISN_STORESCRIPT
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250 typedef struct {
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251 int sref_sid; // script ID
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252 int sref_idx; // index in sn_var_vals
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253 int sref_seq; // sn_script_seq when compiled
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254 type_T *sref_type; // type of the variable when compiled
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255 } scriptref_T;
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256
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257 typedef struct {
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258 scriptref_T *scriptref;
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259 } script_T;
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260
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261 // arguments to ISN_UNLET
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262 typedef struct {
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263 char_u *ul_name; // variable name with g:, w:, etc.
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264 int ul_forceit; // forceit flag
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265 } unlet_T;
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266
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267 // arguments to ISN_FUNCREF
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268 typedef struct {
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269 int fr_func; // function index
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270 } funcref_T;
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271
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272 // arguments to ISN_NEWFUNC
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273 typedef struct {
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274 char_u *nf_lambda; // name of the lambda already defined
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275 char_u *nf_global; // name of the global function to be created
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276 } newfunc_T;
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277
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278 // arguments to ISN_CHECKLEN
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279 typedef struct {
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280 int cl_min_len; // minimum length
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281 int cl_more_OK; // longer is allowed
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282 } checklen_T;
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283
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284 // arguments to ISN_SHUFFLE
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285 typedef struct {
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286 int shfl_item; // item to move (relative to top of stack)
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287 int shfl_up; // places to move upwards
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288 } shuffle_T;
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289
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290 // arguments to ISN_PUT
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291 typedef struct {
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292 int put_regname; // register, can be NUL
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293 linenr_T put_lnum; // line number to put below
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294 } put_T;
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295
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296 // arguments to ISN_CMDMOD
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297 typedef struct {
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298 cmdmod_T *cf_cmdmod; // allocated
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299 } cmod_T;
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300
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301 // arguments to ISN_UNPACK
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302 typedef struct {
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303 int unp_count; // number of items to produce
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304 int unp_semicolon; // last item gets list of remainder
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305 } unpack_T;
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306
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307 // arguments to ISN_LOADOUTER and ISN_STOREOUTER
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308 typedef struct {
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309 int outer_idx; // index
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310 int outer_depth; // nesting level, stack frames to go up
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311 } isn_outer_T;
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312
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313 /*
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314 * Instruction
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315 */
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316 struct isn_S {
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317 isntype_T isn_type;
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318 int isn_lnum;
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319 union {
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320 char_u *string;
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321 varnumber_T number;
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322 blob_T *blob;
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323 vartype_T vartype;
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324 #ifdef FEAT_FLOAT
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325 float_T fnumber;
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326 #endif
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327 channel_T *channel;
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328 job_T *job;
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329 partial_T *partial;
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330 jump_T jump;
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331 forloop_T forloop;
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332 try_T try;
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333 cbfunc_T bfunc;
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334 cdfunc_T dfunc;
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335 cpfunc_T pfunc;
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336 cufunc_T ufunc;
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337 echo_T echo;
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338 opexpr_T op;
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339 checktype_T type;
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340 storenr_T storenr;
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341 storeopt_T storeopt;
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342 loadstore_T loadstore;
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343 script_T script;
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344 unlet_T unlet;
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345 funcref_T funcref;
21558
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346 newfunc_T newfunc;
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347 checklen_T checklen;
21232
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348 shuffle_T shuffle;
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349 put_T put;
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350 cmod_T cmdmod;
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351 unpack_T unpack;
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352 isn_outer_T outer;
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353 } isn_arg;
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354 };
19181
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355
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356 /*
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357 * Info about a function defined with :def. Used in "def_functions".
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358 */
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359 struct dfunc_S {
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360 ufunc_T *df_ufunc; // struct containing most stuff
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361 int df_refcount; // how many ufunc_T point to this dfunc_T
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362 int df_idx; // index in def_functions
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363 int df_deleted; // if TRUE function was deleted
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364 char_u *df_name; // name used for error messages
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365 int df_script_seq; // Value of sctx_T sc_seq when the function
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366 // was compiled.
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367
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368 garray_T df_def_args_isn; // default argument instructions
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369 isn_T *df_instr; // function body to be executed
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370 int df_instr_count;
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371
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372 int df_varcount; // number of local variables
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373 int df_has_closure; // one if a closure was created
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374 };
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375
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376 // Number of entries used by stack frame for a function call.
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377 // - ec_dfunc_idx: function index
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378 // - ec_iidx: instruction index
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379 // - ec_outer: stack used for closures
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380 // - ec_frame_idx: previous frame index
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381 #define STACK_FRAME_FUNC_OFF 0
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382 #define STACK_FRAME_IIDX_OFF 1
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383 #define STACK_FRAME_OUTER_OFF 2
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384 #define STACK_FRAME_IDX_OFF 3
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385 #define STACK_FRAME_SIZE 4
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386
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387
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388 #ifdef DEFINE_VIM9_GLOBALS
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389 // Functions defined with :def are stored in this growarray.
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390 // They are never removed, so that they can be found by index.
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391 // Deleted functions have the df_deleted flag set.
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392 garray_T def_functions = {0, 0, sizeof(dfunc_T), 50, NULL};
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393 #else
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394 extern garray_T def_functions;
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395 #endif
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396
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397 // Used for "lnum" when a range is to be taken from the stack.
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398 #define LNUM_VARIABLE_RANGE -999
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399
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400 // Used for "lnum" when a range is to be taken from the stack and "!" is used.
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401 #define LNUM_VARIABLE_RANGE_ABOVE -888