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author | Indrajith K L | 2022-12-03 17:00:20 +0530 |
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committer | Indrajith K L | 2022-12-03 17:00:20 +0530 |
commit | f5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch) | |
tree | 2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/vlib/builtin/builtin.v | |
download | cli-tools-windows-master.tar.gz cli-tools-windows-master.tar.bz2 cli-tools-windows-master.zip |
Diffstat (limited to 'v_windows/v/vlib/builtin/builtin.v')
-rw-r--r-- | v_windows/v/vlib/builtin/builtin.v | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/v_windows/v/vlib/builtin/builtin.v b/v_windows/v/vlib/builtin/builtin.v new file mode 100644 index 0000000..188e28d --- /dev/null +++ b/v_windows/v/vlib/builtin/builtin.v @@ -0,0 +1,128 @@ +// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved. +// Use of this source code is governed by an MIT license +// that can be found in the LICENSE file. +module builtin + +// isnil returns true if an object is nil (only for C objects). +[inline] +pub fn isnil(v voidptr) bool { + return v == 0 +} + +/* +fn on_panic(f fn(int)int) { + // TODO +} +*/ + +struct VCastTypeIndexName { + tindex int + tname string +} + +// will be filled in cgen +__global as_cast_type_indexes []VCastTypeIndexName + +fn __as_cast(obj voidptr, obj_type int, expected_type int) voidptr { + if obj_type != expected_type { + mut obj_name := as_cast_type_indexes[0].tname.clone() + mut expected_name := as_cast_type_indexes[0].tname.clone() + for x in as_cast_type_indexes { + if x.tindex == obj_type { + obj_name = x.tname.clone() + } + if x.tindex == expected_type { + expected_name = x.tname.clone() + } + } + panic('as cast: cannot cast `$obj_name` to `$expected_name`') + } + return obj +} + +// VAssertMetaInfo is used during assertions. An instance of it +// is filled in by compile time generated code, when an assertion fails. +pub struct VAssertMetaInfo { +pub: + fpath string // the source file path of the assertion + line_nr int // the line number of the assertion + fn_name string // the function name in which the assertion is + src string // the actual source line of the assertion + op string // the operation of the assertion, i.e. '==', '<', 'call', etc ... + llabel string // the left side of the infix expressions as source + rlabel string // the right side of the infix expressions as source + lvalue string // the stringified *actual value* of the left side of a failed assertion + rvalue string // the stringified *actual value* of the right side of a failed assertion +} + +// free is used to free the memory occupied by the assertion meta data. +// It is called by cb_assertion_failed, and cb_assertion_ok in the preludes, +// once they are done with reporting/formatting the meta data. +[manualfree; unsafe] +pub fn (ami &VAssertMetaInfo) free() { + unsafe { + ami.fpath.free() + ami.fn_name.free() + ami.src.free() + ami.op.free() + ami.llabel.free() + ami.rlabel.free() + ami.lvalue.free() + ami.rvalue.free() + } +} + +fn __print_assert_failure(i &VAssertMetaInfo) { + eprintln('$i.fpath:${i.line_nr + 1}: FAIL: fn $i.fn_name: assert $i.src') + if i.op.len > 0 && i.op != 'call' { + eprintln(' left value: $i.llabel = $i.lvalue') + if i.rlabel == i.rvalue { + eprintln(' right value: $i.rlabel') + } else { + eprintln(' right value: $i.rlabel = $i.rvalue') + } + } +} + +// MethodArgs holds type information for function and/or method arguments. +pub struct MethodArgs { +pub: + typ int + name string +} + +// FunctionData holds information about a parsed function. +pub struct FunctionData { +pub: + name string + attrs []string + args []MethodArgs + return_type int + typ int +} + +// FieldData holds information about a field. Fields reside on structs. +pub struct FieldData { +pub: + name string + attrs []string + is_pub bool + is_mut bool + is_shared bool + typ int +} + +pub enum AttributeKind { + plain // [name] + string // ['name'] + number // [123] + comptime_define // [if name] +} + +pub struct StructAttribute { +pub: + name string + has_arg bool + arg string + kind AttributeKind +} |