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annotate src/vim9.h @ 22517:6acf73cc1863

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Added tag v8.2.1806 for changeset c174ec901f7e95d098321a535289f894455a2458
author Bram Moolenaar <Bram@vim.org>
date Tue, 06 Oct 2020 20:00:05 +0200
parents 4c21f7f6f9e3
children 6589dae9696c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
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22 // get and set variables
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23 ISN_LOAD, // push local variable isn_arg.number
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24 ISN_LOADV, // push v: variable isn_arg.number
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25 ISN_LOADG, // push g: variable isn_arg.string
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26 ISN_LOADB, // push b: variable isn_arg.string
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27 ISN_LOADW, // push w: variable isn_arg.string
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28 ISN_LOADT, // push t: variable isn_arg.string
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29 ISN_LOADGDICT, // push g: dict
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30 ISN_LOADBDICT, // push b: dict
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31 ISN_LOADWDICT, // push w: dict
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32 ISN_LOADTDICT, // push t: dict
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33 ISN_LOADS, // push s: variable isn_arg.loadstore
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34 ISN_LOADOUTER, // push variable from outer scope isn_arg.number
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35 ISN_LOADSCRIPT, // push script-local variable isn_arg.script.
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36 ISN_LOADOPT, // push option isn_arg.string
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37 ISN_LOADENV, // push environment variable isn_arg.string
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38 ISN_LOADREG, // push register isn_arg.number
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39
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40 ISN_STORE, // pop into local variable isn_arg.number
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41 ISN_STOREV, // pop into v: variable isn_arg.number
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42 ISN_STOREG, // pop into global variable isn_arg.string
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43 ISN_STOREB, // pop into buffer-local variable isn_arg.string
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44 ISN_STOREW, // pop into window-local variable isn_arg.string
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45 ISN_STORET, // pop into tab-local variable isn_arg.string
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46 ISN_STORES, // pop into script variable isn_arg.loadstore
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47 ISN_STOREOUTER, // pop variable into outer scope isn_arg.number
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48 ISN_STORESCRIPT, // pop into script variable isn_arg.script
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49 ISN_STOREOPT, // pop into option isn_arg.string
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50 ISN_STOREENV, // pop into environment variable isn_arg.string
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51 ISN_STOREREG, // pop into register isn_arg.number
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52 // ISN_STOREOTHER, // pop into other script variable isn_arg.other.
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53
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54 ISN_STORENR, // store number into local variable isn_arg.storenr.stnr_idx
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55 ISN_STORELIST, // store into list, value/index/varable on stack
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56 ISN_STOREDICT, // store into dictionary, value/index/variable on stack
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57
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58 ISN_UNLET, // unlet variable isn_arg.unlet.ul_name
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59 ISN_UNLETENV, // unlet environment variable isn_arg.unlet.ul_name
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60
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61 ISN_LOCKCONST, // lock constant value
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62
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63 // constants
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64 ISN_PUSHNR, // push number isn_arg.number
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65 ISN_PUSHBOOL, // push bool value isn_arg.number
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66 ISN_PUSHSPEC, // push special value isn_arg.number
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67 ISN_PUSHF, // push float isn_arg.fnumber
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68 ISN_PUSHS, // push string isn_arg.string
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69 ISN_PUSHBLOB, // push blob isn_arg.blob
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70 ISN_PUSHFUNC, // push func isn_arg.string
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71 ISN_PUSHCHANNEL, // push channel isn_arg.channel
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72 ISN_PUSHJOB, // push channel isn_arg.job
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73 ISN_NEWLIST, // push list from stack items, size is isn_arg.number
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74 ISN_NEWDICT, // push dict from stack items, size is isn_arg.number
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75
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76 // function call
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77 ISN_BCALL, // call builtin function isn_arg.bfunc
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78 ISN_DCALL, // call def function isn_arg.dfunc
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79 ISN_UCALL, // call user function or funcref/partial isn_arg.ufunc
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80 ISN_PCALL, // call partial, use isn_arg.pfunc
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81 ISN_PCALL_END, // cleanup after ISN_PCALL with cpf_top set
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82 ISN_RETURN, // return, result is on top of stack
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83 ISN_FUNCREF, // push a function ref to dfunc isn_arg.funcref
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84 ISN_NEWFUNC, // create a global function from a lambda function
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85
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86 // expression operations
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87 ISN_JUMP, // jump if condition is matched isn_arg.jump
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88
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89 // loop
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90 ISN_FOR, // get next item from a list, uses isn_arg.forloop
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91
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92 ISN_TRY, // add entry to ec_trystack, uses isn_arg.try
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93 ISN_THROW, // pop value of stack, store in v:exception
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94 ISN_PUSHEXC, // push v:exception
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95 ISN_CATCH, // drop v:exception
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96 ISN_ENDTRY, // take entry off from ec_trystack
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97
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98 // more expression operations
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99 ISN_ADDLIST,
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100 ISN_ADDBLOB,
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101
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102 // operation with two arguments; isn_arg.op.op_type is exptype_T
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103 ISN_OPNR,
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104 ISN_OPFLOAT,
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105 ISN_OPANY,
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106
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107 // comparative operations; isn_arg.op.op_type is exptype_T, op_ic used
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108 ISN_COMPAREBOOL,
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109 ISN_COMPARESPECIAL,
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110 ISN_COMPARENR,
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111 ISN_COMPAREFLOAT,
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112 ISN_COMPARESTRING,
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113 ISN_COMPAREBLOB,
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114 ISN_COMPARELIST,
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115 ISN_COMPAREDICT,
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116 ISN_COMPAREFUNC,
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117 ISN_COMPAREANY,
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118
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119 // expression operations
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120 ISN_CONCAT,
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121 ISN_STRINDEX, // [expr] string index
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122 ISN_STRSLICE, // [expr:expr] string slice
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123 ISN_LISTINDEX, // [expr] list index
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124 ISN_LISTSLICE, // [expr:expr] list slice
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125 ISN_ANYINDEX, // [expr] runtime index
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126 ISN_ANYSLICE, // [expr:expr] runtime slice
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127 ISN_SLICE, // drop isn_arg.number items from start of list
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128 ISN_GETITEM, // push list item, isn_arg.number is the index
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129 ISN_MEMBER, // dict[member]
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130 ISN_STRINGMEMBER, // dict.member using isn_arg.string
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131 ISN_2BOOL, // falsy/truthy to bool, invert if isn_arg.number != 0
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132 ISN_COND2BOOL, // convert value to bool
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133 ISN_2STRING, // convert value to string at isn_arg.number on stack
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134 ISN_2STRING_ANY, // like ISN_2STRING but check type
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135 ISN_NEGATENR, // apply "-" to number
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136
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137 ISN_CHECKNR, // check value can be used as a number
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138 ISN_CHECKTYPE, // check value type is isn_arg.type.tc_type
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139 ISN_CHECKLEN, // check list length is isn_arg.checklen.cl_min_len
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140
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141 ISN_PUT, // ":put", uses isn_arg.put
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142
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143 ISN_SHUFFLE, // move item on stack up or down
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144 ISN_DROP // pop stack and discard value
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145 } isntype_T;
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146
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147
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148 // arguments to ISN_BCALL
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149 typedef struct {
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150 int cbf_idx; // index in "global_functions"
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151 int cbf_argcount; // number of arguments on top of stack
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152 } cbfunc_T;
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153
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154 // arguments to ISN_DCALL
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155 typedef struct {
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156 int cdf_idx; // index in "def_functions" for ISN_DCALL
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157 int cdf_argcount; // number of arguments on top of stack
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158 } cdfunc_T;
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159
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160 // arguments to ISN_PCALL
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161 typedef struct {
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162 int cpf_top; // when TRUE partial is above the arguments
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163 int cpf_argcount; // number of arguments on top of stack
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164 } cpfunc_T;
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165
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166 // arguments to ISN_UCALL and ISN_XCALL
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167 typedef struct {
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168 char_u *cuf_name;
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169 int cuf_argcount; // number of arguments on top of stack
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170 } cufunc_T;
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171
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172 typedef enum {
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173 JUMP_ALWAYS,
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174 JUMP_IF_FALSE, // pop and jump if false
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175 JUMP_AND_KEEP_IF_TRUE, // jump if top of stack is truthy, drop if not
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176 JUMP_AND_KEEP_IF_FALSE, // jump if top of stack is falsy, drop if not
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177 JUMP_IF_COND_TRUE, // jump if top of stack is true, drop if not
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178 JUMP_IF_COND_FALSE, // jump if top of stack is false, drop if not
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179 } jumpwhen_T;
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180
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181 // arguments to ISN_JUMP
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182 typedef struct {
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183 jumpwhen_T jump_when;
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184 int jump_where; // position to jump to
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185 } jump_T;
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186
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187 // arguments to ISN_FOR
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188 typedef struct {
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189 int for_idx; // loop variable index
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190 int for_end; // position to jump to after done
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191 } forloop_T;
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192
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193 // arguments to ISN_TRY
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194 typedef struct {
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195 int try_catch; // position to jump to on throw
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196 int try_finally; // position to jump to for return
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197 } try_T;
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198
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199 // arguments to ISN_ECHO
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200 typedef struct {
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201 int echo_with_white; // :echo instead of :echon
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202 int echo_count; // number of expressions
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203 } echo_T;
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204
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205 // arguments to ISN_OPNR, ISN_OPFLOAT, etc.
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206 typedef struct {
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207 exptype_T op_type;
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208 int op_ic; // TRUE with '#', FALSE with '?', else MAYBE
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209 } opexpr_T;
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210
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211 // arguments to ISN_CHECKTYPE
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212 typedef struct {
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213 type_T *ct_type;
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214 int ct_off; // offset in stack, -1 is bottom
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215 } checktype_T;
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216
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217 // arguments to ISN_STORENR
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218 typedef struct {
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219 int stnr_idx;
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220 varnumber_T stnr_val;
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221 } storenr_T;
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222
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223 // arguments to ISN_STOREOPT
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224 typedef struct {
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225 char_u *so_name;
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226 int so_flags;
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227 } storeopt_T;
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228
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229 // arguments to ISN_LOADS and ISN_STORES
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230 typedef struct {
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231 char_u *ls_name; // variable name (with s: for ISN_STORES)
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232 int ls_sid; // script ID
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233 } loadstore_T;
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234
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235 // arguments to ISN_LOADSCRIPT and ISN_STORESCRIPT
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236 typedef struct {
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237 int script_sid; // script ID
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238 int script_idx; // index in sn_var_vals
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239 } script_T;
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240
20091
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241 // arguments to ISN_UNLET
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242 typedef struct {
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243 char_u *ul_name; // variable name with g:, w:, etc.
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244 int ul_forceit; // forceit flag
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245 } unlet_T;
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246
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247 // arguments to ISN_FUNCREF
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248 typedef struct {
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249 int fr_func; // function index
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250 } funcref_T;
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251
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252 // arguments to ISN_NEWFUNC
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253 typedef struct {
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254 char_u *nf_lambda; // name of the lambda already defined
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255 char_u *nf_global; // name of the global function to be created
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256 } newfunc_T;
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257
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258 // arguments to ISN_CHECKLEN
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259 typedef struct {
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260 int cl_min_len; // minimum length
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261 int cl_more_OK; // longer is allowed
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262 } checklen_T;
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263
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264 // arguments to ISN_SHUFFLE
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265 typedef struct {
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266 int shfl_item; // item to move (relative to top of stack)
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267 int shfl_up; // places to move upwards
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268 } shuffle_T;
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269
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270 // arguments to ISN_PUT
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271 typedef struct {
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272 int put_regname; // register, can be NUL
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273 linenr_T put_lnum; // line number to put below
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274 } put_T;
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275
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276 /*
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277 * Instruction
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278 */
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279 struct isn_S {
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280 isntype_T isn_type;
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281 int isn_lnum;
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282 union {
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283 char_u *string;
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284 varnumber_T number;
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285 blob_T *blob;
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286 #ifdef FEAT_FLOAT
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287 float_T fnumber;
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288 #endif
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289 channel_T *channel;
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290 job_T *job;
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291 partial_T *partial;
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292 jump_T jump;
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293 forloop_T forloop;
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294 try_T try;
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295 cbfunc_T bfunc;
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296 cdfunc_T dfunc;
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297 cpfunc_T pfunc;
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298 cufunc_T ufunc;
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299 echo_T echo;
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300 opexpr_T op;
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301 checktype_T type;
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302 storenr_T storenr;
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303 storeopt_T storeopt;
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304 loadstore_T loadstore;
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305 script_T script;
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306 unlet_T unlet;
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307 funcref_T funcref;
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308 newfunc_T newfunc;
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309 checklen_T checklen;
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310 shuffle_T shuffle;
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311 put_T put;
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312 } isn_arg;
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313 };
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314
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315 /*
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316 * Info about a function defined with :def. Used in "def_functions".
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317 */
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318 struct dfunc_S {
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319 ufunc_T *df_ufunc; // struct containing most stuff
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320 int df_idx; // index in def_functions
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321 int df_deleted; // if TRUE function was deleted
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322
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323 garray_T df_def_args_isn; // default argument instructions
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324 isn_T *df_instr; // function body to be executed
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325 int df_instr_count;
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326
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327 int df_varcount; // number of local variables
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328 int df_has_closure; // one if a closure was created
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329 };
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330
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331 // Number of entries used by stack frame for a function call.
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332 // - ec_dfunc_idx: function index
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333 // - ec_iidx: instruction index
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334 // - ec_outer_stack: stack used for closures TODO: can we avoid this?
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335 // - ec_outer_frame: stack frame for closures
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336 // - ec_frame_idx: previous frame index
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337 #define STACK_FRAME_SIZE 5
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338
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339
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340 #ifdef DEFINE_VIM9_GLOBALS
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341 // Functions defined with :def are stored in this growarray.
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342 // They are never removed, so that they can be found by index.
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343 // Deleted functions have the df_deleted flag set.
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344 garray_T def_functions = {0, 0, sizeof(dfunc_T), 50, NULL};
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345 #else
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346 extern garray_T def_functions;
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347 #endif
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348