compiler/vm

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This file implements the new evaluation engine for Nim code. An instruction is 1-3 int32s in memory, it is a register based VM.

Consts

evalPass = (myOpen, myProcess, myClose, false)
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Procs

proc evalConstExpr(module: PSym; idgen: IdGenerator; g: ModuleGraph; e: PNode): PNode {....raises: [
    Exception, ValueError, KeyError, IOError, ERecoverableError, OSError,
    JsonParsingError], tags: [RootEffect, ReadDirEffect, WriteIOEffect,
                              ReadIOEffect, ReadEnvEffect, TimeEffect,
                              ExecIOEffect].}
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proc evalExpr(c: PCtx; n: PNode): PNode {....raises: [Exception, ValueError,
    KeyError, IOError, ERecoverableError, OSError, JsonParsingError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect,
    TimeEffect, ExecIOEffect].}
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proc evalMacroCall(module: PSym; idgen: IdGenerator; g: ModuleGraph;
                   templInstCounter: ref int; n, nOrig: PNode; sym: PSym): PNode {....raises: [
    Exception, ValueError, KeyError, IOError, ERecoverableError, OSError,
    JsonParsingError], tags: [RootEffect, ReadDirEffect, WriteIOEffect,
                              ReadIOEffect, ReadEnvEffect, TimeEffect,
                              ExecIOEffect].}
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proc evalStaticExpr(module: PSym; idgen: IdGenerator; g: ModuleGraph; e: PNode;
                    prc: PSym): PNode {....raises: [Exception, ValueError,
    KeyError, IOError, ERecoverableError, OSError, JsonParsingError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect,
    TimeEffect, ExecIOEffect].}
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proc evalStaticStmt(module: PSym; idgen: IdGenerator; g: ModuleGraph; e: PNode;
                    prc: PSym) {....raises: [Exception, ValueError, KeyError,
    IOError, ERecoverableError, OSError, JsonParsingError], tags: [RootEffect,
    ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect, TimeEffect,
    ExecIOEffect].}
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proc evalStmt(c: PCtx; n: PNode) {....raises: [Exception, ValueError, KeyError,
    IOError, ERecoverableError, OSError, JsonParsingError], tags: [RootEffect,
    ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect, TimeEffect,
    ExecIOEffect].}
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proc execProc(c: PCtx; sym: PSym; args: openArray[PNode]): PNode {....raises: [
    Exception, ValueError, KeyError, IOError, ERecoverableError, OSError,
    JsonParsingError], tags: [RootEffect, ReadDirEffect, WriteIOEffect,
                              ReadIOEffect, ReadEnvEffect, TimeEffect,
                              ExecIOEffect].}
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proc getBool(a: VmArgs; i: Natural): bool {....raises: [], tags: [].}
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proc getFloat(a: VmArgs; i: Natural): BiggestFloat {....raises: [], tags: [].}
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proc getGlobalValue(c: PCtx; s: PSym): PNode {.
    ...raises: [Exception, ValueError, KeyError, IOError, ERecoverableError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}
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proc getInt(a: VmArgs; i: Natural): BiggestInt {....raises: [], tags: [].}
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proc getNode(a: VmArgs; i: Natural): PNode {....raises: [], tags: [].}
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proc getNodeAddr(a: VmArgs; i: Natural): PNode {....raises: [], tags: [].}
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proc getString(a: VmArgs; i: Natural): string {....raises: [], tags: [].}
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proc getVar(a: VmArgs; i: Natural): PNode {....raises: [], tags: [].}
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proc numArgs(a: VmArgs): int {....raises: [], tags: [].}
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proc registerAdditionalOps(c: PCtx) {....raises: [], tags: [].}
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proc setGlobalValue(c: PCtx; s: PSym; val: PNode) {.
    ...raises: [Exception, ValueError, KeyError, IOError, ERecoverableError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}
Does not do type checking so ensure the val matches the s.typ   Source   Edit
proc setResult(a: VmArgs; n: PNode) {....raises: [], tags: [].}
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proc setResult(a: VmArgs; v: AbsoluteDir) {....raises: [], tags: [].}
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proc setResult(a: VmArgs; v: BiggestFloat) {....raises: [], tags: [].}
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proc setResult(a: VmArgs; v: BiggestInt) {....raises: [], tags: [].}
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proc setResult(a: VmArgs; v: bool) {....raises: [], tags: [].}
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proc setResult(a: VmArgs; v: seq[string]) {....raises: [], tags: [].}
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proc setResult(a: VmArgs; v: string) {....raises: [], tags: [].}
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proc setupCompileTimeVar(module: PSym; idgen: IdGenerator; g: ModuleGraph;
                         n: PNode) {....raises: [Exception, ValueError, KeyError,
    IOError, ERecoverableError, OSError, JsonParsingError], tags: [RootEffect,
    ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect, TimeEffect,
    ExecIOEffect].}
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proc setupGlobalCtx(module: PSym; graph: ModuleGraph; idgen: IdGenerator) {.
    ...raises: [], tags: [].}
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Iterators

iterator genericParamsInMacroCall(macroSym: PSym; call: PNode): (PSym, PNode) {.
    ...raises: [], tags: [].}
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