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fixes #7827, bindSym enhancement (#8499)

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* bindSym power up, working prototype

* update bindSym doc

* add bindSym test

* fix some typo

* fix bindSym doc

* get rid of specialops field from vm

* add experimental: dynamicBindSym
This commit is contained in:
andri lim 2018-08-02 17:56:44 +07:00 • committed by Andreas Rumpf
commit 78c0ac5407
9 changed files with 183 additions and 13 deletions
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10
lib/core/macros.nim
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@ -382,16 +382,24 @@ type
{.deprecated: [TBindSymRule: BindSymRule].}
proc bindSym*(ident: static[string], rule: BindSymRule = brClosed): NimNode {.
proc bindSym*(ident: string | NimNode, rule: BindSymRule = brClosed): NimNode {.
magic: "NBindSym", noSideEffect.}
## creates a node that binds `ident` to a symbol node. The bound symbol
## may be an overloaded symbol.
## if `ident` is a NimNode, it must have nkIdent kind.
## If ``rule == brClosed`` either an ``nkClosedSymChoice`` tree is
## returned or ``nkSym`` if the symbol is not ambiguous.
## If ``rule == brOpen`` either an ``nkOpenSymChoice`` tree is
## returned or ``nkSym`` if the symbol is not ambiguous.
## If ``rule == brForceOpen`` always an ``nkOpenSymChoice`` tree is
## returned even if the symbol is not ambiguous.
##
## experimental feature:
## use {.experimental: "dynamicBindSym".} to activate it
## if called from template / regular code, `ident` and `rule` must be
## constant expression / literal value.
## if called from macros / compile time procs / static blocks,
## `ident` and `rule` can be VM computed value.
proc genSym*(kind: NimSymKind = nskLet; ident = ""): NimNode {.
magic: "NGenSym", noSideEffect.}